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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-K

(Mark One)

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Commission file number: 000-29823

SILICON LABORATORIES INC.

(Exact name of registrant as specified in its charter)

(512) ​

(512) 416-8500

(Registrant'sRegistrant’s telephone number, including area code)

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Securities registered pursuant to Section 12(b) of the Act:

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Securities registered pursuant to Section 12(g) of the Act:None

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. ý☑Yes o☐ No

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. o☐Yes ý☑ No

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Sections 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. ý☑ Yeso☐ No

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Website, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files). ý☑ Yeso☐ No

         Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K (§229.405 of this chapter) is not contained herein, and will not be contained, to the best of the registrant's knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K. ý

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of "large“large accelerated filer," "accelerated” “accelerated filer," "smaller” “smaller reporting company"company” and "emerging“emerging growth company"company” in Rule 12b-2 of the Exchange Act.

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If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. o☐

Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report. ☑

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).o☐Yes ý☑ No

The aggregate market value of the voting and non-voting common equity held by non-affiliates computed by reference to the price at which the common equity was last sold as of the last business day of the registrant'sregistrant’s most recently completed second fiscal quarter (June 30, 2017)(July 1, 2022) was approximately $2.9$4.3 billion (assuming, for this purpose, that only directors and officers are deemed affiliates).

There were 42,708,55931,899,142 shares of the registrant'sregistrant’s common stock issued and outstanding as of January 22, 2018.24, 2023.

DOCUMENTS INCORPORATED BY REFERENCE

Portions of the Proxy Statement for the registrant's 2017registrant’s 2022 Annual Meeting of Stockholders are incorporated by reference into Part III of this Form 10-K.

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Table of Contents

Part I

Item 1.    Business

GeneralOverview

Silicon Laboratories Inc. is a leading provider of silicon, software and solutionsleader in secure, intelligent wireless technology for a smarter, more connected world. Our award-winning technologiesintegrated hardware and software platform, intuitive development tools, industry-leading ecosystem, and robust support help customers build advanced industrial, commercial, home, and life applications. We make it easy for developers to solve complex wireless challenges throughout the product lifecycle and get to market quickly with innovative solutions that transform industries, grow economies, and improve lives. 

We are shapingpioneers in wireless innovation and have spent the futurelast two decades simplifying the complexity of theradio frequency (“RF”) from silicon to cloud. Our leading Internet of Things (IoT), Internet(“IoT”) platform helps customers quickly create secure, intelligent connected devices. Our team and technology assist customers to build connected devices that measurably solve development challenges, including energy efficiency, and enable applications that support better health, innovative infrastructure industrial automation, consumer and automotive markets. sustainable cities.

Our world-class engineering team creates products focused on performance, energy savings, connectivity and simplicity.

        Our primary semiconductor products are mixed-signal integrated circuits (ICs), which are electronic components that convert real-world analog signals, such as sound and radio waves, into digital signals that electronic products can process. Our mixed-signal ICsdevices leverage standard complementary metal oxide semiconductor (CMOS)(“CMOS”), a low cost,low-cost, widely available process technology. UseThe use of CMOS technology enables smaller, more cost-effective, and energy-efficient solutions. Our software expertise allows us to develop products for markets where intelligent data capture, high-performance processing, and communication are increasingly important product differentiators. We also focus design and engineering efforts on technologies that simplify and accelerate adoption by customers of security features engineered into our silicon chips. Our expertise in analog-intensive, mixed-signal IC design in CMOS and software development allows us to develop new and innovative products that are highly integrated and secure, simplifying our customers'customers’ designs and improving their time-to-market.

Industry Background

        The pervasiveness of connectivity and mobile devices is driving semiconductor consumption. Intelligence is being added to electronic systems to enable Internetinternet connectivity, power efficiency, monitoring of health, safety and consumption of precious resources and an improved user experience. This in turn is increasing the demand for bandwidth, requiring more infrastructure to support higher performancehigher-performance networks. The nearly ubiquitous availability of Internetinternet access and the increasing intelligence of electronic devices and mobility are enabling what is called the Internet of Things, a term that describes the exponential increase in IP-enabled devices connected to the Internet.internet.

These trends require more and more interaction between the analog world we live in and the digital world of computing, which is driving the need for analog-intensive, mixed-signal circuits in a wide range of electronic products. Traditional mixed-signal designs relied upon solutions built with numerous, complex discrete analog and digital components. While these traditional designs provide the required functionality, they are often inefficient and inadequate for use in markets where size, cost, power consumption, performance and performancesecurity are increasingly important product differentiators. To improve their competitive position, electronics manufacturers must reduce the cost and complexity of their systems and enable new features or functionality to differentiate themselves from their competitors.

Simultaneously, these manufacturers face accelerating time-to-market demands and must rapidly adapt to evolving industry standards and new technologies. Because analog-intensive, mixed-signal design expertise is difficult to find, these manufacturers increasingly are turning to third parties, like us, to provide advanced mixed-signal solutions. Mixed-signal design requires specific expertise and relies on creative, experienced engineers to deliver solutions that optimize speed, power, and performance, despite the noisy digital environment, and within the constraints of standard manufacturing processes. The development of this design expertise typically requires years of practical analog design experience under the guidance of a senior engineer, and engineers with the required level of skill and expertise are in short supply.

Many IC solution providers lack sufficient analog expertise to develop compelling mixed-signal products. As a result, manufacturers of electronic devices value providers that can supply them with mixed-signal solutions offering greater functionality, smaller size, and lower power requirements at a reduced cost and shorter time-to-market.

Table of Contents

Products

Products

We provide analog-intensive, mixed-signal solutions for use in a variety of electronic products in a broad range of applications for the IoT including connected home, smart lighting, security, wearables, smart energyIoT. We have built a leading wireless development platform and industrial applications. We are a supplier of wireless connectivity solutionsproduct portfolio for the IoT based on Bluetooth®, Zigbee®,sub-GHz proprietary technologies, Thread, Wi-Fi®, Zigbee® and sub-GHz technologies.

        We provide a wide range of timing and isolation products for infrastructure applications including high-performance clocks and oscillators for networking equipment, data centers and wireless base stations, as well as digital isolators and current sensors for industrial power supplies, motor control, solar inverters and hybrid-electric vehicles. We also provide broadcast products, such as TV tuners and demodulators and automotive radio tuners, and access products including subscriber line interface circuits for voice over IP (VoIP), embedded modems, and Power over Ethernet (PoE) power source equipment and powered device ICs.

Z-Wave®. Our products integrate complex mixed-signal functions that are frequently performed by numerous discrete components in competing products into a single chip, chipset or chipset.system-on-chip (SoC). By doing so, we create products that, when compared to many competing products, offer the following benefits:

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Require less printed circuit board (PCB) space;



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Require less printed circuit board (PCB) space;

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Reduce the use of external components lowering the system cost and simplifying design; • Offer superior performance improving our customers' end products; • Provide increased reliability and manufacturability, improving customer yields; and/or • Reduce system power requirements enabling smaller form factors and/or longer battery life.         We group our products into the following categories: • Internet of Things products, which include our microcontroller (MCU), wireless and sensor products; • Broadcast products, which include our broadcast consumer and automotive products; • Infrastructure products, which include our timing products (clocks and oscillators), and isolation devices; and • Access products, which include our VoIP products, embedded modems and PoE devices. Table of Contents         The following table summarizes the diverse product areas and applications for the various products that we have introduced to customers: Product Areas and Description Applications Internet of Things Products Microcontrollers and Wireless Products We offer a family of products ideal for embedded systems that include energy friendly 8-bit mixed-signal microcontrollers, 32-bit wireless MCUs and ultra-low-power 32-bit MCUs based on scalable ARM® Cortex-M0+/M3/M4 cores, as well as wireless connectivity devices such as our multiprotocol Wireless Gecko system-on-chip (SoC) devices. Our wireless modules provide flexible, highly integrated products that meet demanding requirements and can be used in many applications. Our wireless connectivity solutions for the IoT are based on Bluetooth, Zigbee, Thread, Wi-Fi and sub-GHz technologies. Our EFM32™, EFM8™, 8051, wireless MCUs and wireless SoCs are supported by Simplicity Studio™, which provides one-click access to design tools, documentation, software and support resources. We also offer a real-time operating system (RTOS) to help simplify software development for IoT applications by coordinating and prioritizing multiprotocol connectivity, SoC peripherals and other system-level activities. Our broad portfolio addresses a variety of end-markets, including the IoT (connected home, smart lighting, security, wearables, smart energy and industrial IoT applications), automotive, communications, consumer, industrial, medical and power management markets. • Home automation • Security systems • Smart lighting • Smart metering • Wearables • Industrial automation and control • Consumer electronics • Medical instrumentation • Automotive sensors and controls • Electronic test and measurement equipment • White goods • Remote controls Sensors Our sensor products include optical sensors (proximity, ambient light gestures and heart rate monitoring), as well as relative humidity (RH) / temperature sensors and Hall effect magnetic sensors. These devices leverage our mixed-signal capability to provide high accuracy, process technology to improve performance and lower power consumption than competing parts. • Consumer health & fitness (wearables) • Smart home sensing • Industrial controls • Toys and consumer electronics • Monitors and lavatory controls • Consumer medical Table of Contents Product Areas and Description Applications Broadcast Products Broadcast Consumer Our single-chip hybrid TV tuners and analog TV demodulators leverage our proven digital low-IF architecture and exceed the performance of traditional discrete TV tuners, enabling TV makers worldwide to deliver improved picture quality and better reception for both analog and digital broadcasts. Our small, low-power and high-performance single and dual digital video demodulators support DVB-T/T2, DVB-S/S2/S2X, DVB-C/C2, and/or ISDB-T in a single chip and are ideal for equipment receiving digital terrestrial, satellite and/or cable services. Our AM/FM, HD Radio™ and DAB/DAB+ receivers deliver a complete radio solution from antenna input to audio output in a single chip. The broadcast audio products are based on an innovative digital architecture that enables significant improvements in performance, which translates to a better consumer experience, while reducing system cost and board space for our customers. • Integrated digital televisions (iDTV) • Free-to-Air (FtA) or pay-TV set-top boxes • PVR/DVD/Blu-Ray/HDD video recorders • PC-TV applications • AM/FM clock radios • Portable audio devices • MP3/digital media players • Home theater systems • DAB digital radios • HD Radio digital radios Broadcast Automotive Our high-performance solutions for car sound systems include high-fidelity radio ICs that improve the end user experience, reduce system cost and offer the latest digital radio technologies like DAB/DAB+ and HD Radio. Our scalable architecture enables infotainment system suppliers to leverage their investments across multiple product lines ranging from entry-level car radios to cutting-edge multi-tuner, multi-antenna radios for premium vehicles. • Automotive infotainment systems/radios • Navigation/GPS devices simplifying design; Table of Contents ● Product Areas and Description Applications Infrastructure Products Timing Devices Robust demand for bandwidth is driving the deployment of next-generation Internet infrastructure equipment to deliver higher speed, higher capacity and more flexible networks. This transition puts unique requirements on the clocks and oscillators used to provide timing and synchronization for the equipment responsible for switching, transporting, processing and storing network traffic. To meet this need, we provide low-jitter, frequency-flexible, mass-customizable timing solutions that accelerate development time, minimize cost and improve system reliability. Our high-performance "clock-tree-on-a-chip" products offer highly integrated single-chip IC solutions for clock synthesis and jitter attenuation, offeringOffer superior jitter performance and frequency flexibility for high data rate applications. • Optical networking • Telecommunications • Data communications • Switches/routers • Servers and storage • Mobile fronthaul and backhaul • Wireless base stations • Small cells • Broadcast video • Industrial Isolation Products Our digital isolation techniques enable customers to deploy more energy efficient power solutions that meet isolation safety standards and solve difficult electronic noise issues. Systems such as data center servers, cellular base stations and uninterruptable power supplies require increasingly energy efficient power solutions. Electric motors used in electric vehicles, pumps, HVAC compressors, fans and automated machinery need more sophisticated and efficient digital controls. Our isolation technology enables customers to address these demanding requirements. Products include multi-channel isolators, isolated drivers, isolated power converters and mixed-signal devices that simplify design, improve reliability, minimize noise emissions and reduce system cost. • Industrial control and automation systems • Cloud, datacenter and telecom power supplies • Hybrid / Electric automotive drive trains • Electric vehicle charging stations • Solar inverters • Motor control • High power audio • Test and measurement equipment Access Products ProSLIC® Subscriber Line Interface Circuits for VoIP Our ProSLIC provides the analog subscriber line interface on the sourceimproving our customers’ end of the telephone which generates dial tone, busy tone, caller ID and ring signal. Our offerings are well suited for the market for Voice over IP telephony applications deployed over cable, DSL, optical and wireless fixed terminal networks. • Voice functionality for cable, DSL and optical digital modems and terminal adapters • VoIP residential gateways • Wireless local loop remote access systems • PBXs ISOmodem® Embedded Modems Our ISOmodem embedded modems leverage innovative silicon direct access arrangement (DAA) technology and a digital signal processor to deliver a globally compliant, compact analog modem for embedded applications. • Point of sale (POS) terminals • Fax machines and multi-function printers • Security systems • Industrial monitoring • Remote medical monitoring Power over Ethernet Our PoE power source equipment and powered device ICs offer highly differentiated solutions with a reduced total bill of materials (BOM) and improved performance and reliability. Our solutions offer a higher level of integration not available with competing solutions. • Enterprise networking routers and switches • Wireless access points (WAP) • VoIP phones • POS terminals • Security cameras products; ● Provide increased reliability and manufacturability, improving customer yields; and/or ● Reduce system power requirements enabling smaller form factors and/or longer battery life. Table of ContentsWe have continued to diversify our product portfolio and introduce new products and solutions through both organic investment and acquisitions. Revenues during fiscal 2017, 20162022, 2021 and 20152020 were generated predominately by sales of our mixed-signal products. The following summarizes the products that we have introduced to customers: Wireless Microcontrollers and Sensor Products Our EFM32™, EFM8™, 8051, wireless MCUs and wireless SoCs are based on numerous wireless protocols, including Bluetooth, sub-GHz proprietary technologies, Thread, Wi-Fi, Zigbee and Z-Wave technologies. Our family of products are ideally suited to ultra-low power IoT embedded systems that include energy friendly 8-bit mixed-signal microcontrollers, ultra-low power 32-bit microcontroller and wireless MCU connectivity solutions using the ARM® Cortex-M0+/M3/M4 and newer M33 cores. Single and multi-protocol SoC devices and modules provide flexible, highly integrated solutions designed to meet demanding requirements of IoT applications. The introduction of our revenueSeries 2 portfolio provides a greater focus on updatable device security which is becoming vital to the evolution and success of IoT. We bring enhanced capability to the industry protecting user data, system keys and manufacturer brands from malicious threats both hands-on and internet-based. Our broad portfolio addresses a variety of target markets. Our sensor products include optical sensors (proximity, ambient light gestures and heart rate monitoring), as well as relative humidity (RH) / temperature sensors and Hall effect magnetic sensors. These devices leverage our mixed-signal capability to provide high accuracy, process technology to improve performance and lower power consumption than competing parts. Our products are supported by product category (in thousands):Simplicity Studio™, which provides one-click access to design tools, documentation, software and support resources. In-house protocol stacks and Micrium® real-time operating system (RTOS) help simplify software development for IoT developers by coordinating and prioritizing multiprotocol connectivity, SoC peripherals and other system-level activities. ​ 3 Table of Contents We group our products as Industrial & Commercial or Home & Life based on the target markets they address. These markets and their corresponding applications are described below: ​ Target Market Applications ​ ​ ​ Industrial & Commercial ​ ​ Industrial IoT ​ ​ The Industrial IoT market is highly fragmented with a diverse collection of products and applications. Leveraging the Industrial IoT allows companies to increase production and efficiency, understand and improve processes, and predict faults in processes before downtime occurs. Industrial IoT solutions address energy efficiency, operation excellence and smart usage of commercial spaces. Our industrial IoT solutions simplify human-machine interfaces and access controls; add wireless connectivity to commercial luminaires, sensors and controls; implement HVAC sensor and actuator networks in commercial buildings; provide increased convenience to electrical providers and consumers through submetering: improve maintenance routines using IoT predictive maintenance; and drive greater energy efficiency and safety with smart circuit breakers. ​ -  Industrial automation and control -  Smart buildings -  Access control -  HVAC control -  Industrial wearables -  Industrial power tools ​ ​ ​ ​ Smart Cities ​ ​ Cities are now using digitization and wireless technology to increase service capacity while decreasing carbon emissions. By leveraging smart city solutions, cities monitor municipal assets in real-time and residents actively track their energy consumption. Our smart city solutions enable cities to operate smarter, produce and distribute energy more efficiently, and prioritize renewable energy. ​ -  Smart metering -  Smart street lighting -  Renewable energy -  Electric vehicle supply equipment -  Smart agriculture ​ ​ ​ Commercial IoT ​ ​ Commercial IoT, such as smart retail solutions, can increase retailer efficiency, reduce labor costs and provide consumer insights by merging digital online e-commerce and physical stores into an omnichannel experience. Our smart retail solutions, such as electronic shelf labels, increase productivity and profitability via centralized and dynamic price management without the labor-intensive manual price updates. Our smart lighting solutions use wireless access points to enable indoor location services which track assets and consumer behavior and speed up click-and-collect ordering. ​ -  Asset tracking -  Smart lighting -  Electronic shelf labels -  Theft protection -  Enterprise access points ​ ​ ​ Home & Life ​ ​ ​ ​ ​ Smart Home ​ ​ Smart home devices provide functional, energy-efficient living spaces with secure, reliable, and robust wireless smart home solutions. Sensors collect real-time data continuously to automate lighting, heating, and appliances, minimizing energy consumption while maximizing convenience. Our smart home solutions provide the functionality consumers demand while delivering features that accelerate adoption - privacy, simplicity, and performance. ​ -  Home automation/security systems -  Smart speaker -  Smart lighting -  HVAC control -  Smart cameras -  Smart appliances -  Smart home sensing ​ ​ ​ 4     Fiscal Year       2017   2016   2015   Internet of Things   $ 395,012   $ 314,614   $ 262,329   Broadcast     152,980     157,746     161,787   Infrastructure     152,158     147,677     121,974   Access     68,717     77,589     98,736   ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Revenues   $ 768,867   $ 697,626   $ 644,826   ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Table of Contents Target Market Applications ​ ​ ​ Connected Health ​ ​ Smart medical devices, such as pulse oximeters, ECG monitors, and fitness wearables, make healthcare more accessible and are improving lives around the world. Crowded RF environments, regulatory requirements, and security make development of these connected medical devices challenging for device manufacturers. Our low-power, high-performance wireless SoCs and modules simplify this process and accelerate time-to-market to develop secure, reliable, smart medical devices. ​ -  Consumer health & fitness (wearables) -  Connected medical products -  Medical instrumentation -  Patient monitoring ​ Customers, Sales and Marketing We market our products through our direct sales force and through a network of independent sales representatives and distributors. Direct and distributordistribution customers buy on an individual purchase order basis, rather than pursuant to long-term agreements. We consider our customer to be the end customer purchasing either directly from a distributor, a contract manufacturer or us. During fiscal 2017,2022, our ten largest end customers accounted for 20% of our revenues. We had no customer that represented more than 10% of our revenues during this period. An end customer purchasing through a contract manufacturer typically instructs such contract manufacturer to obtain our products and incorporate such products with other components for sale by such contract manufacturer to the end customer. Although we sell the products to, and are paid by distributors and contract manufacturers, we refer to such end customer as our customer. ThreeTwo of our distributors who sell directly to our customers, Arrow Electronics and Edom Technology, Avnetrepresented 33% and Arrow Electronics, each represented 19%, 14% and 12%17% of our revenues during fiscal 2017,2022, respectively. There were no contract manufacturers that accounted for 10% or more of revenues for fiscal 2017. We maintain numerous sales offices in Asia, the Americas and Europe. Revenue is attributed to a geographic area based on the shipped-to location. The percentage of our revenues derived from outside of the United States was 85%83% in fiscal 2017. For further information regarding our revenues and long-lived assets by geographic area, see Note 17,Segment Information, to the Consolidated Financial Statements.2022. Our direct sales force is comprised of many sales professionals who possess varied levels of responsibility and experience, including directors, country managers, regional sales managers, district sales managers, strategic account managers, field sales engineers and sales representatives. We also utilize independent sales representatives and distributors to generate sales of our products. We have relationships with many independent sales representatives and distributors worldwide whom we have selected based on their understanding of the mixed-signal marketplace and their ability to provide effective field sales applications support for our products. Our marketing efforts are targeted at both identified industry leaders and emerging market participants. Direct marketing activities are supplemented by a focused marketing communications effort that seeks to raise awareness of our company and products. Our public relations efforts are focused on leading trade and business publications. Our external website is used to deliver corporate and product information. We also pursue targeted advertising in key trade publications and we have a cooperative marketing program that allows our distributors and representatives to promote our products to their local markets in conjunction with their own advertising activities. Finally, we maintain a presence at strategic trade shows and industry events. These activities, in combination with direct sales activities, help drive demand for our products. Table of Contents Due to the complex and innovative nature of our products, we employ experienced applications engineers who work closely with customers and distributors to support the design-win process, and can significantly accelerate the customer'scustomer’s time to market. A design win occurs when a customer has designed our ICs into its product architecture and ordered product from us. A considerable amount of effort to help a customer incorporate our ICs into its products is typically required prior to any sale. In many cases, our innovative ICs require significantly different implementations than existing approaches and, therefore, successful implementations may require extensive communication with potential customers. The amount of time required to achieve a design win can vary substantially depending on a customer'scustomer’s development cycle, which can be relatively short (such as three months) or very long (such as two years) based on a wide variety of customer factors. Not all design wins ultimately result in revenue, or may result in less revenue than expected. However, once a completed design architecture has been implemented and produced in high volumes, our customers are reluctant to significantly alter their designs due to this extensive design-win process. We believe this process, coupled with our intellectual property protection, promotes relatively longer product life cycles for our products and high barriers to entry for competitive products, even if such competing products are offered at lower prices. Our close collaboration with our customers provides us with knowledge of derivative product ideas or completely new product line offerings that may not otherwise arise in other new product discussions. 5 Table of Contents Research and Development Through our research and development efforts, we leverage experienced analog and mixed-signal engineering talent and expertise to create new ICs that integrate functions typically performed less efficiently by multiple discrete components. This integration generally results in lower costs, smaller die sizes, lower power demands and enhanced price/performance characteristics. We attempt to reuse successful techniques for integration in new applications where similar benefits can be realized. We believe that we have attracted many of the best engineers in our industry. We believe that reliable and precise analog and mixed-signal ICs can only be developed by teams of engineers who have significant analog experience and are familiar with the intricacies of designing these ICs for commercial volume production. The development of test methodologies is just one example of a critical activity requiring experience and know-how to enable the rapid release of a new product for commercial success. We have accumulated a vast set of trade secrets that allow us to pursue innovative approaches to mixed-signal problems that are difficult for competitors to duplicate. We highly value our engineering talent and strive to maintain a very high bar when bringing new recruits to the company. Research and development expenses were $209.5$332.3 million, $199.7$273.2 million and $188.1$235.2 million in fiscal 2017, 20162022, 2021 and 2015,2020, respectively. Technology Our product development process facilitates the design of highly-innovative, analog-intensive, mixed-signal ICs. Our engineers'engineers’ deep knowledge of existing and emerging standards and performance requirements helps us to assess the technical feasibility of a particular IC. We target areas where we can provide compelling product improvements. Once we have solved the primary challenges, our field application engineers continue to work closely with our customers'customers’ design teams to maintain and develop an understanding of our customers'customers’ needs, allowing us to formulate derivative products and refined features. In providing mixed-signal ICs for our customers, we believe our key competitive advantages are: • Analog and RF design expertise in CMOS; • Mixed-signal, firmware and system design expertise; • Microcontroller and system on a chip design expertise; ● Analog and RF design expertise in CMOS; ● Mixed-signal, firmware and system design expertise; ● Microcontroller and system on a chip design expertise; ● Software expertise, including multiprotocol connectivity and real-time operating systems for the IoT; ● Module integration and wireless design expertise; ● Silicon-to-cloud security integration expertise; and ● Our broad understanding of systems technology and trends. Table of Contents • Software expertise, including multiprotocol connectivity and real-time operating systems for the IoT; • Module integration and wireless design expertise; and • Our broad understanding of systems technology and trends. To fully capitalize on these advantages, we have assembled a world-class development team with exceptional analog and mixed-signal design expertise led by accomplished senior engineers. Analog and RF Design Expertise in CMOS We believe that our most significant core competency is world-class analog and RF design capability. Additionally, we strive to design substantially all our ICs in standard CMOS processes. Most of our product designs now incorporate some type of RF in CMOS technology. While it is often significantly more difficult to design analog ICs in CMOS, CMOS provides multiple benefits versus existing alternatives, including significantly reduced cost, reduced technology risk and greater worldwide foundry capacity. CMOS is the most commonly used process technology for manufacturing digital ICs and as a result is most likely to be used for the manufacturing of ICs with finer line geometries. These finer line geometries can enable smaller and faster ICs. By designing our ICs in CMOS, we enable our products to benefit from this trend towards finer line geometries, which allows us to integrate more digital functionality into our mixed-signal ICs. Designing analog and mixed-signal ICs is significantly more complicated than designing standalone digital ICs. While advanced software tools exist to help automate digital IC design, there are far fewer tools for advanced analog and mixed-signal IC design. In many cases, our analog circuit design efforts begin at the fundamental transistor level. We believe that we have a demonstrated ability to design the most difficult analog and RF circuits using standard CMOS technologies. 6 Table of Contents Mixed-Signal, Firmware and System Design Expertise We consider the partitioning of a circuit to be a proprietary and creative design technique. Deep systems knowledge allows us to use our mixed-signal and RF in CMOS design expertise to maximize the price/performance characteristics of both the analog and digital functions and allow our ICs to work in an optimized manner to accomplish particular tasks. Generally, we attempt to move analog functions into the digital domain as quickly as possible, creating system efficiencies without compromising performance. These patented approaches require our advanced signal processing and systems expertise. We then leverage our firmware know-how to change the 'personality'‘personality’ of our devices, optimizing features and functions needed by various markets we serve. For example, our wireless SoC devices for IoT applications integrate both digital and analog domains in a single chip. The SoCs combine ARM Cortex-M processor cores, a variety of digital and analog peripherals, hardware cryptography accelerators, and analog-intensive multiprotocol radio transceivers. This system integration at the chip level leverages our deep expertise in mixed-signal and RF design, and low-power wireless MCU architectures pioneered for more than a decade. Microcontroller and System on a Chip Design Expertise We have the talent and circuit integration methodologies required to combine precision analog, high-speed digital, flash memory and in-system programmability into a single, monolithic CMOS integrated circuit. Our microcontroller products are designed to capture an external analog signal, convert it to a digital signal, compute digital functions on the stream of data and then communicate the results through a standard digital interface. The ability to develop standard products with the broadest possible customer application base while being cost efficient with the silicon area of the monolithic CMOS integrated circuit requires a keen sense of customer value and engineering capabilities. Table of Contents Additionally, to manage the wide variety of signals on a monolithic piece of silicon including electrical noise, harmonics and other electronic distortions requires a fundamental knowledge of device physics and accumulated design expertise. Software Expertise Our software expertise allows us to develop products for markets where intelligent data capture, high-performance processing and communication are increasingly important product differentiators. The software we have developed to address these markets enables machine-to-machine communications, providing intelligence to electronic systems. Our products integrate high-performance, low-power wireless and microcontroller ICs with reliable and scalable software into a flexible and robust networking platform. The demand for low-power, small-footprint wireless technology is accelerating as more and more IP-enabled end points are being connected to the IoT. Our software enables a broad range of power-sensitive applications for the IoT, including smart energy, home automation, security and other connected products. We believe that the combination of our software and IC design expertise differentiates us from many of our competitors. As the IoT continues to mature, a new class of embedded applications is emerging, presenting feature-rich and task-intensive use cases. This growing complexity is driving the need for real-time operating systems to help simplify software development for IoT applications by coordinating and prioritizing multiprotocol connectivity, SoC peripherals and other system-level activities. In addition to being able to manage numerous application tasks, an RTOS enhances scalability, and makes complex applications predictable and reliable. To address these application needs, we acquired Micrium, an embedded RTOS provider. Micrium has established itself as a reliable, high performance and trusted RTOS software platform, with an installed base that has grown to millions of devices. Module Integration and Wireless Design Expertise The market for wireless modules has grown as customers search for solutions that provide turnkey wireless connectivity tofor their products. The development of modules is difficult due to stringent requirements, including high levels of integration, programmability, performance, reliability, security and power efficiency. In addition, designs must meet numerous wireless standards deployed in various environments and serving diverse requirements. Our combined expertise in IC design and software development allows us to engineer modules that provide robust, high-performance connections in challenging wireless environments. We have developed wireless modules based on numerous wireless standards, including Z-Wave, Bluetooth, Zigbee, Thread, Wi-Fi and sub-GHz. We believe our demonstrated proficiency in the design of modules provides our customers with significant advantages such as fast time to market, reduced development cost, global wireless certifications and software reuse. 7 Table of Contents Silicon-to-Cloud Security Integration Expertise Security is of paramount importance to our customers. More than ever before, device manufacturers and OEMs developing IoT products have specific needs to ensure their solutions are secure. Security is a complex endeavor involving the convergence of multiple integrated hardware and software technologies. IoT products are designed to ensure the devices operate in a trusted and reliable manner, enforce policies as well as protect the confidentiality, authenticity and integrity of data and private information being processed and transmitted. The building blocks are built in hardware based on dedicated IC security components integrated into SoC designs. These specialized security components are designed to enhance cryptographic capabilities and exploit unique physical characteristics of CMOS to establish foundations of trust and enable device identity and assurance. In addition to developing specific security hardware and software capabilities, we also focus design and engineering efforts on technologies that simplify and accelerate adoption by customers of security features engineered into our silicon chips. This is primarily achieved through software tools such as Simplicity Studio and its integration with cloud-based services that simplify implementation, reduce complexity and enable management of security for fleets of devices. Those capabilities are designed to help customers develop products and solutions with chip-to-cloud security integration, enable faster time to market and reduce security defects, risks and losses due to security attacks and incidents. We are creating innovative security solutions that enable customers to develop best-in-class, simple and economical solutions. We will continue investing in security-specific research and development that addresses a dynamic threat landscape, emerging regulatory requirements, and evolving customer security and privacy needs. Understanding of Systems Technology and Trends Our focused expertise in mixed-signal ICs is the result of the breadth of engineering talent we have assembled with experience working in analog-intensive CMOS design for a wide variety of applications. This expertise, which we consider a competitive advantage, is the foundation of our in-depth understanding of the technology and trends that impact electronic systems and markets. Our expertise includes: • Isolation, which is critical for existing and emerging industrial applications and telecom networks; • Frequency synthesis, which is core technology for wireless and clocking applications; ● Frequency synthesis, which is core technology for wireless and clocking applications; ● Integration, which enables the elimination of discrete components in a system; and ● Signal processing and precision analog, which forms the heart of consumer, industrial, medical and automotive electronics applications. Table of Contents • Integration, which enables the elimination of discrete components in a system; and • Signal processing and precision analog, which forms the heart of consumer, industrial, medical and automotive electronics applications. Our understanding of the role of analog/digital interfaces within electronic systems, standards evolution, and end market drivers enables us to identify product development opportunities and capitalize on market trends. Manufacturing As a fabless semiconductor company, we conduct IC design and development in our facilities and electronically transfer our proprietary IC designs to third-party semiconductor fabricators who process silicon wafers to produce the ICs that we design. Our IC designs typically use industry-standard CMOS manufacturing process technology to achieve a level of performance normally associated with more expensive special-purpose IC fabrication technology. We believe the use of CMOS technology facilitates the rapid production of our ICs within a lower cost framework. Our IC production employs submicron process geometries which are readily available from leading foundry suppliers worldwide, thus increasing the likelihood that manufacturing capacity will be available throughout our products'products’ life cycles. We currently partner primarily with Taiwan Semiconductor Manufacturing Co. (TSMC) or TSMC's affiliates and Semiconductor Manufacturing International Corporation (SMIC) to manufacture the majority of our semiconductor wafers. We believe that our fabless manufacturing model significantly reduces our capital requirements and allows us to focus our resources on design, development and marketing of our ICs. Once the silicon wafers have been produced, they are shipped directly to our third-party assembly subcontractors. The assembled ICs are then moved to the final testing stage. This operation can be performed by the same contractor that assembled the IC, other third-party test subcontractors or within our internal facilities prior to shipping to our customers. During fiscal 2017,2022, most of our units shipped were tested by offshore third-party test subcontractors. We expect that our utilization of offshore third-party test subcontractors will remain substantial during fiscal 2018.2023. 8 Table of Contents The impacts of the COVID-19 pandemic on our suppliers are uncertain, evolving and dependent on numerous unpredictable factors outside of our control. If our suppliers experience closures or reductions in their capacity utilization levels in the future, we may have difficulty sourcing materials necessary to fulfill production requirements. Disruptions to our business and supply chain (and the business and supply chains of our customers) could cause significant delays in shipments of our products until we are able to shift our manufacturing, assembling or testing from the affected subcontractor to another third-party vendor. Capacity is currently limited at certain of our third-party foundry, assembly and test subcontractors due to a spike in semiconductor demand. Backlog We include in backlog accepted product purchase orders from customers and worldwide distributor stocking orders. Product orders in our backlog are subject to changes in delivery schedules or cancellation at the option of the purchaser typically without penalty. Our backlog may fluctuate significantly depending upon customer order patterns which may, in turn, vary considerably based on rapidly changing business circumstances. Accordingly, we do not believe that our backlog at any time is necessarily representative of actual sales for any succeeding period. Competition The markets for semiconductors generally, and for analog and mixed-signal ICs in particular, are intensely competitive. We anticipate that the market for our products will continually evolve and will be subject to rapid technological change. We believe the principal competitive factors in our industry are: ●    Product size; • Product size; • ●Power requirement; • ●Level of integration; • ●    Customer support; ●    Product capabilities; • Product capabilities; • ●    Reputation; ●    Reliability; • Reliability; • ●Ability to rapidly introduce new products to market; ●    Price; • Price; • ●    Intellectual property; and ●    Performance; • Performance; • ●    Software. ​ Table of Contents We believe that we are competitive with respect to these factors, particularly because our ICs typically are smaller in size, are highly integrated, achieve high performance specifications at lower price points than competitive products and are manufactured in standard CMOS which generally enables us to supply them on a relatively rapid basis to customers to meet their product introduction schedules. However, disadvantages we face include our relatively short operating history in certain of our markets and the need for customers to redesign their products and modify their software to implement our ICs in their products. Due to our diversified product portfolio and the numerous markets and applications we serve, we target a relatively large number of competitors. We compete with Analog Devices, Broadcom, Cypress, IDT,Espressif, Infineon, Maxim Integrated Products, MaxLinear,MediaTek, Microchip, Microsemi, Nordic Semiconductor, NXP, Semiconductors, Qualcomm, Renesas, STMicroelectronics, Synaptics, Telink, Texas Instruments and others. We expect to face competition in the future from our current competitors, other manufacturers and designers of semiconductors and start-up semiconductor design companies. Our competitors may also offer bundled solutions offering a more complete product, which may negatively impact our competitive position despite the technical merits or advantages of our products. In addition, our customers could develop products or technologies internally that would replace their need for our products and would become a source of competition. We could also face competition from module makers or other systems suppliers that may include mixed-signal components in their products that could eliminate the need for our ICs. Many of our competitors and potential competitors have longer operating histories, greater name recognition, access to larger customer bases, complementary product offerings, and significantly greater financial, sales and marketing, manufacturing, distribution, technical and other resources than us. Current and potential competitors have established or may establish financial and strategic relationships between themselves or with our existing or potential customers, resellers or other third parties. Accordingly, it is possible that new competitors or alliances among competitors could emerge and rapidly acquire significant market share. 9 Table of Contents Intellectual Property Our future success depends in part upon our proprietary technology. We seek to protect our technology through a combination of patents, copyrights, trade secrets, trademarks and confidentiality procedures. As of December 30, 2017,31, 2022, we had approximately 1,6341,459 issued or pending United States and foreign patents. Patents generally have a term of twenty years from the date they are filed. As our patent portfolio has been built over time, the remaining terms of the individual patents in our patent portfolio vary. There can be no assurance that patents will ever be issued with respect to our patent applications. Furthermore, it is possible that any patents held by us may be invalidated, circumvented, challenged or licensed to others. In addition, there can be no assurance that such patents will provide us with competitive advantages or adequately safeguard our proprietary rights. While we continue to file new patent applications with respect to our recent developments, existing patents are granted for prescribed time periods and will expire at various times in the future. We claim copyright protection for proprietary documentation for our products. We have filed for registration, or are in the process of filing for registration, the visual images of certain ICs with the U.S. Copyright Office. We have registered the "Silicon Labs"“Silicon Labs” logo and a variety of other product and product family names as trademarks in the United States and selected foreign jurisdictions. All other trademarks, service marks or trade names appearing in this report are the property of their respective owners. We also attempt to protect our trade secrets and other proprietary information through agreements with our customers, suppliers, employees and consultants, and through other customary security measures. We intend to protect our rights vigorously, but there can be no assurance that our efforts will be successful. In addition, the laws of other countries in which our products are sold may not protect our products and intellectual property rights to the same extent as the laws of the United States. Table of Contents While our ability to effectively compete depends in large part on our ability to protect our intellectual property, we believe that our technical expertise and ability to introduce new products in a timely manner will be an important factor in maintaining our competitive position. Many participants in the semiconductor and electronics industries have a significant number of patents and have frequently demonstrated a readiness to commence litigation based on allegations of patent and other intellectual property infringement. From time to time, third parties may assert infringement claims against us. We may not prevail in any such litigation or may not be able to license any valid and infringed patents from third parties on commercially reasonable terms, if at all. Litigation, regardless of the outcome, is likely to result in substantial cost and diversion of our resources, including our management'smanagement’s time. Any such litigation could materially adversely affect us. Our licenses include industry standard licenses with our vendors, such as wafer fabrication tool libraries, third-party core libraries, computer-aided design applications and business software applications. EmployeesHuman Capital         As of December 30, 2017, we employed 1,279 people. Our success depends on the continued service of our key technical and senior management personnel and on our ability to continue to attract, retain and motivate qualified employees, particularly highly skilled analog and mixed-signal engineers. The competitionengineers and senior management personnel. We strive to meet this objective by offering competitive compensation and benefits in a diverse, inclusive, equitable and safe workplace, with opportunities for such personnel is intense.our employees to grow and develop in their careers. As of December 31, 2022, we employed 1,964 people, of whom 67% were in engineering roles. Women represented 22% of our workforce and men represented 78%. We are a multi-national and multi-ethnic workforce, with sites and employees in more than a dozen countries. We are committed to fostering a diverse and inclusive workplace that attracts and retains exceptional talent. We actively promote representation in our organization and equity in our recruitment, development, promotion and compensation practices. We have never hadfocused attention on improving our environmental, social and governance (“ESG”) metrics. We included diversity, equity and inclusion (“DEI”) metrics as a work stoppagecomponent of senior management bonuses for fiscal 2022. These principles are also reflected in our employee training, in particular with respect to our policies against harassment, discrimination and nonethe elimination of bias in the workplace. We hold our employees to high performance standards and our compensation plans are designed to deliver competitive base pay and attractive incentive opportunities. Our benefits programs are tailored to the various countries in which we operate. We benchmark for market practices, and regularly review our compensation and benefit programs against the market to ensure they remain competitive. 10 Table of Contents We support a high-performance culture through learning and development solutions aligned with our strategic priorities. Our approach is business-centric, accessible and inclusive. Employees continuously collaborate and share their expertise through an internal training program consisting of classes and workshops that help strengthen technical and professional skills and advance careers. We also host university professors and external speakers to broaden knowledge, trigger creativity and inspire innovation. Our e-learning libraries and on-demand training videos allow employees to absorb information at their own pace and share their recommendations with co-workers. Employees are invited to attend our annual two-day technical symposium featuring peer-reviewed presentations showcasing our internal technical achievements and talks from outside experts to educate and inspire our workforce. Our talent development programs provide employees with the resources they need to help achieve their career goals, build management skills and lead their organizations. We regularly review succession plans and focus on promoting internal talent to help grow our employees’ careers. We believe that our future success will be dependent on retaining the services of our U.S.key personnel, developing their successors and properly managing the transition of key roles when they occur. Our key technical personnel represent a significant asset and serve as the primary source for our technological and product innovations. We use employee surveys to better understand and improve the employee experience and identify opportunities to continually strengthen our work philosophy. We use employee feedback to drive and improve processes and ensure a deep understanding of our culture and vision among our employees. We believe the development of our company culture, along with competitive compensation, career growth and development opportunities have helped increase employee tenure and reduce voluntary turnover. During fiscal 2022, our voluntary employee turnover rate was 9%. The health and safety of our employees is of utmost important to us. We offer comprehensive benefits to protect the health of our employees and their families as well as their way of life. We provide our employees and their families with access to a variety of innovative, flexible and convenient health and wellness programs that support their physical and mental health by providing tools and resources to help them improve or maintain their health status. We have taken additional health and safety measures due to the COVID-19 pandemic and will continue to adjust these as needed based upon health authority guidelines. Corporate Social Responsibility As a global corporate citizen, we are representedcommitted to advancing responsible and sustainable operations throughout our supply chain. We live by our promise to “do the right thing” for our employees, customers, shareholders, communities, and the planet. We strive to minimize resource use and reduce our environmental impact by designing smaller and more energy-efficient products, conserving energy and precious resources, and investing in sustainable technologies and energy conservation practices. We believe our products enable sustainable IoT solutions across home, medical, industrial and commercial environments, including air pollution and waste management monitoring, water integrity, residential irrigation monitoring, street lighting networks, advanced metering infrastructure and building energy management. Innovative solutions don’t stop at our products – we are also actively supporting research to improve safety, sustainability, and overall quality of life in densifying cities as the founding corporate partner for the Smart City Living Lab at The International Institute of Information Technology in Hyderabad, India. We demand excellence in our quality and environmental management systems, each respectively certified to ISO 9001:2015 and ISO 14001:2015 standards. We strive to deliver products that meet environmental regulations and requirements and have high standards for our global supply chain partners, prioritizing qualified suppliers who are socially and environmentally progressive. In 2022, we joined the Responsible Business Alliance® (“RBA®”), an industry coalition dedicated to responsible business conduct in the global supply chain. We support, and require our suppliers to support, the RBA Code of Conduct. Each year we donate a labor organization.portion of our annual profits to charitable organizations, allocating global site grants to support local community needs, and providing corporate matching gifts for our US-based employees. We consideralso offer 24 hours of paid time off annually for employees to volunteer in their communities. Our philanthropy program prioritizes financial, volunteer and in-kind support to organizations that are helping to expand technology access and education to underrepresented groups, support advancements in sustainability and energy conservation, and invest in critical community needs where we work and live. For more information on our employee relationsESG commitments and progress, please visit the Environmental, Social and Governance (“ESG”) section of our website at www.silabs.com. Our website and the information contained therein or connected thereto are not intended to be good.incorporated into this Annual Report on Form 10-K. 11 Table of Contents Governmental Regulations Environmental Regulation         Federal,We are subject to international, federal, state and local regulations impose various environmental controls on the storage, use, discharge and disposal of certain chemicals and gases usedthat are customary to businesses in the semiconductor industry. Such regulations include: ● The Restriction of Hazardous Substances Directive (“RoHS”), which restricts the use of certain hazardous substances in electrical and electronic equipment; ● General Data Protection Regulation (“GDPR”), which provides guidelines for the collection and processing of personal information from individuals who live in the European Union; ● The U.S. Foreign Corrupt Practices Act (“FCPA”), which prohibits companies and their individual officers from influencing foreign officials with any personal payments or rewards; and ● Conflict minerals reporting, which imposes disclosure requirements regarding the use of “conflict” minerals mined from the Democratic Republic of Congo and adjoining countries in products. Our compliance with these laws and regulations has not had a material impact on our financial position or results of operations. Available Information Our website address is www.silabs.com. Our annual report on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K and amendments to those reports filed or furnished pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934 are available through the investor relations page of our website free of charge as soon as reasonably practicable after we electronically file such material with, or furnish it to, the Securities and Exchange Commission (SEC). Our website and the information contained therein or connected thereto are not intended to be incorporated into this Annual Report on Form 10-K. ​ Item 1A.    Risk Factors Global Business Risks Related We rely on third parties to manufacture, assemble and test our Businessproducts, which subjects us to risks of disruptions in our supply chain We do not have our own wafer fab manufacturing facilities. Therefore, we rely on third-party vendors to manufacture the products we design. We also currently rely on third-party assembly subcontractors in Asia to assemble and package the silicon chips provided by the wafers for use in final products. Additionally, we rely on these offshore subcontractors for a substantial portion of the testing requirements of our products prior to shipping. We expect utilization of third-party subcontractors to continue in the future. The cyclical nature of the semiconductor industry drives wide fluctuations in available capacity at third-party vendors. On occasion, we have been unable to adequately respond to unexpected increases in customer demand due to capacity constraints and, therefore, were unable to benefit from this incremental demand. We may be unable to obtain adequate foundry, assembly or test capacity from our third-party subcontractors to meet our customers’ delivery requirements even if we adequately forecast customer demand. For example, foundry, assembly and test capacity is currently limited due to a spike in semiconductor demand. As a result, we have recently experienced longer lead times at certain third-party foundry subcontractors. This is resulting in competing demand for capacity at our suppliers. Such conditions may adversely affect our revenue and increase our costs. There are significant risks associated with relying on these third-party foundries and subcontractors, including: ● Failure by us, our customers or their end customers to qualify a selected supplier; ● Disruption to our suppliers’ operations due to geopolitical changes, including risks related to deteriorating relations between China and Taiwan; ● Potential insolvency of the third-party subcontractors; ● Reduced control over delivery schedules and quality; ● Limited warranties on wafers or products supplied to us; ● Potential increases in prices or payments in advance for capacity; ● Increased need for international-based supply, logistics and financial management; ● Disruption to our supply chain resulting from cyber-attacks on our suppliers’ information technology systems; 12 Table of Contents ● Their inability to supply or support new or changing packaging technologies; and ● Low test yields. We typically do not have long-term supply contracts with our third-party vendors which obligate the vendor to perform services and supply products to us for a specific period, in specific quantities, and at specific prices. Our third-party foundry, assembly and test subcontractors typically do not guarantee that adequate capacity will be available to us within the time required to meet demand for our products. In the event that these vendors fail to meet our demand for whatever reason, we expect that it would take up to 12 months to transition performance of these services to new providers. Such a transition may also require qualification of the new providers by our customers or their end customers. If our suppliers experience closures or reductions in their capacity utilization levels in the future, we may have difficulty sourcing materials necessary to fulfill production requirements. Public health crises, such as the COVID-19 pandemic, may affect our suppliers’ production capabilities as a result of quarantines, closures of production facilities, lack of supplies or delays caused by restrictions on travel. Most of the silicon wafers for the products that we have sold were manufactured either by Taiwan Semiconductor Manufacturing Co. (TSMC) or Semiconductor Manufacturing International Corporation (SMIC). Our customers typically complete their own qualification process. If we fail to properly balance customer demand across the existing semiconductor fabrication facilities that we utilize or are required by our foundry partners to increase, or otherwise change the number of fab lines that we utilize for our production, we might not be able to fulfill demand for our products and may need to divert our engineering resources away from new product development initiatives to support the fab line transition, which would adversely affect our operating results. In addition, geopolitical changes in China-Taiwan relations could disrupt TSMC’s operations and impact our third-party assembly subcontractors in Asia. Such a disruption could severely impact our ability to manufacture the majority of our products and as a result, could adversely affect our business, revenues and results of operations. We are subject to the cyclical nature of the semiconductor industry, which has been subject to significant fluctuations The semiconductor industry is highly cyclical and is characterized by constant and rapid technological change, rapid product obsolescence and price erosion, evolving standards, short product life cycles and wide fluctuations in product supply and demand. The industry has experienced significant fluctuations, often connected with, or in anticipation of, maturing product cycles and new product introductions of both semiconductor companies’ and their customers’ products and fluctuations in general economic conditions. Deteriorating general worldwide economic conditions, including reduced economic activity, concerns about credit, interest rates and inflation, increased energy costs, decreased consumer confidence, reduced corporate profits, decreased spending and similar adverse business conditions, would make it very difficult for our customers, our vendors, and us to accurately forecast and plan future business activities and could cause U.S. and foreign businesses to slow spending on our products. In recent months, inflation and interest rates have increased significantly. Such pressures could impact demand for our customers’ end products and increase our costs. If our costs become subject to significant inflationary pressures, we may not be able to fully offset such higher costs with increased revenues. We cannot predict the timing, strength, or duration of any economic slowdown or economic recovery. If the economy or markets in which we operate deteriorate, our business, financial condition, and results of operations would likely be materially and adversely affected. Downturns have been characterized by diminished product demand, production overcapacity, high inventory levels and accelerated erosion of average selling prices. Upturns have been characterized by increased product demand and production capacity constraints created by increased competition for access to third-party foundry, assembly and test capacity. We are dependent on the availability of such capacity to manufacture, assemble and test our products. Foundry, assembly and test capacity is currently limited due to a spike in semiconductor demand. None of our third-party foundry, assembly or test subcontractors have provided assurances that adequate capacity will be available to us. The semiconductor industry has recently experienced an economic up-cycle. This recent up-cycle could be followed by a downturn, and historically, such down-cycles have resulted in a decline in overall GDP performance and greater overall uncertainty regarding the economy. If such a downturn occurs, it could have a material adverse effect on our business and operating results. In addition, the COVID-19 pandemic has caused further global economic uncertainty. The impact from the rapidly changing market and economic conditions due to the COVID-19 outbreak is uncertain, disrupting the business of our customers and suppliers, and could impact our business and operating results in the future. 13 Table of Contents We are a global company, which subjects us to additional business risks including logistical and financial complexity, supply disruption, political instability and currency fluctuations We have established international subsidiaries and have opened offices in international markets to support our activities in Asia, the Americas and Europe. This has included the establishment of a headquarters in Singapore for non-U.S. operations. During fiscal 2022, the percentage of our revenues derived from outside of the United States was 83% (and the revenue associated with end customers in China was 14%, and revenue attributed to China based on shipped-to location was 33%). We may not be able to maintain or increase global market demand for our products. Our international operations are subject to a number of risks, including: ● Complexity and costs of managing international operations and related tax obligations, including our headquarters for non-U.S. operations in Singapore; ● Protectionist laws and business practices, including trade restrictions, tariffs, export controls, quotas and other trade barriers, including China-U.S. trade policies; ● Trade tensions, geopolitical uncertainty, or governmental actions, including those arising from the trade dispute between the U.S. and China, may lead customers to favor products from non-US companies which could put us at a competitive disadvantage and result in decreased customer demand for our products and our customers’ products; ● Rising tensions and deteriorating military, political and economic relations between China and Taiwan could disrupt the operations of our third-party foundry, assembly and test subcontractors, which could severely impact our ability to manufacture the majority of our products and as a result, could adversely affect our business, revenues and results of operations; ● Restrictions or tariffs imposed on certain countries and sanctions or export controls imposed on customers or suppliers may affect our ability to sell and source our products; ● Difficulties related to the protection of our intellectual property rights in some countries; ● Public health crises, such as the COVID-19 pandemic, may affect our international operations, suppliers and customers and we may experience delays in product development, a decreased ability to support our customers and reduced design win activity if the travel restrictions or business shutdowns or slowdowns continue for an extended period of time in any of the countries in which we, our suppliers and our customers operate and do business; ● Multiple, conflicting and changing tax and other laws and regulations that may impact both our international and domestic tax and other liabilities and result in increased complexity and costs, including the impact of the Tax Cuts and Jobs Act, which increased our effective tax rate, in part due to the impact of the requirement to capitalize and amortize foreign research and development expenses beginning in 2022; ● Longer sales cycles; ● Greater difficulty in accounts receivable collection and longer collection periods; ● High levels of distributor inventory subject to price protection and rights of return to us; ● Political and economic instability; ● Risks that demand and the supply chain may be adversely affected by military conflict (including between Russia and Ukraine), terrorism, sanctions or other geopolitical events globally; ● Greater difficulty in hiring and retaining qualified personnel; and ● The need to have business and operations systems that can meet the needs of our international business and operating structure. To date, substantially all of our sales to international customers and purchases of components from international suppliers have been denominated in U.S. dollars. As a result, an increase in the value of the U.S. dollar relative to foreign currencies could make our products more expensive for our international customers to purchase, thus rendering our products less competitive. Similarly, a decrease in the value of the U.S. dollar could reduce our buying power with respect to international suppliers. 14 Table of Contents Most of our current manufacturers, assemblers, test service providers, distributors and customers are concentrated in the same geographic region, which increases the risk that a natural disaster, epidemic, labor strike, war or political unrest could disrupt our operations or sales Most of our foundries and several of our assembly and test subcontractors’ sites are located in Taiwan and most of our other foundry, assembly and test subcontractors are located in the Pacific Rim region. In addition, many of our customers are located in the Pacific Rim region. The risk of earthquakes in Taiwan and the Pacific Rim region is significant due to the proximity of major earthquake fault lines in the area. Earthquakes, tsunamis, fire, flooding, lack of water or other natural disasters, an epidemic such as the current COVID-19 outbreak, political unrest, war, labor strikes or work stoppages in countries where our semiconductor manufacturers, assemblers and test subcontractors are located, likely would result in the disruption of our foundry, assembly or test capacity. There can be no assurance that alternate capacity could be obtained on favorable terms, if at all. A natural disaster, epidemic, labor strike, war or political unrest where our customers’ facilities are located would likely reduce our sales to such customers. In addition, a significant portion of the assembly and testing of our products occurs in South Korea. Any disruption resulting from these events, including the COVID-19 pandemic, could also cause significant delays in shipments of our products until we are able to shift our manufacturing, assembling or testing from the affected subcontractor to another third-party vendor. If the COVID-19 pandemic significantly disrupts the manufacture, shipment and sales of our products or the products of our customers, this may materially negatively impact our operating results for subsequent periods. For example, if travel restrictions or business shutdowns or slowdowns occur for an extended period of time in Taiwan, South Korea or the other countries in which our current manufacturers, assemblers, test service providers, distributors and customers are located, we may experience delays in product production, a decreased ability to support our customers, reduced design win activity, and overall lack of productivity. Our customers may also experience closures of their manufacturing facilities or inability to obtain other components, either of which could negatively impact demand for our solutions. We have limited resources compared to some of our current and potential competitors and we may not be able to compete effectively and increase market share Some of our current and potential competitors have longer operating histories, significantly greater resources and name recognition and a larger base of customers than we have. As a result, these competitors may have greater credibility with our existing and potential customers. They also may be able to adopt more aggressive pricing policies and devote greater resources to the development, promotion and sale of their products than we can to ours. In addition, some of our current and potential competitors have already established supplier or joint development relationships with the decision makers at our current or potential customers. These competitors may be able to leverage their existing relationships to discourage their customers from purchasing products from us or persuade them to replace our products with their products. Our competitors may also offer bundled solutions offering a more complete product despite the technical merits or advantages of our products. These competitors may elect not to support our products which could complicate our sales efforts. We also face increased competition as a result of China actively promoting its domestic semiconductor industry through policy changes and investment. These actions, as well as China-U.S. trade barriers, may restrict our participation in the China market or may prevent us from competing effectively with Chinese companies or companies from other countries that China favors over the United States. Furthermore, our current or potential competitors may be acquired by third parties with greater available resources and the ability to initiate or withstand substantial price competition, which may include price concessions, delayed payment terms, financing terms, or other terms and conditions that are more enticing to potential customers. These and other competitive pressures may prevent us from competing successfully against current or future competitors, and may materially harm our business. Competition could decrease our prices, reduce our sales, lower our gross profit and/or decrease our market share. 15 Table of Contents Competition within the numerous markets we target may reduce sales of our products and reduce our market share The markets for semiconductors in general, and for mixed-signal products in particular, are intensely competitive. We expect that the market for our products will continually evolve and will be subject to rapid technological change. In addition, as we target and supply products to numerous markets and applications, we face competition from a relatively large number of competitors. We compete with Broadcom, Espressif, Infineon, MediaTek, Microchip, Nordic Semiconductor, NXP, Qualcomm, Renesas, STMicroelectronics, Synaptics, Telink, Texas Instruments and others. We expect to face competition in the future from our current competitors, other manufacturers and designers of semiconductors, and start-up semiconductor design companies. As the markets for communications products grow, we also may face competition from traditional communications device companies. These companies may enter the mixed-signal semiconductor market by introducing their own products or by entering into strategic relationships with or acquiring other existing providers of semiconductor products. In addition, large companies may restructure their operations to create separate companies or may acquire new businesses that are focused on providing the types of products we produce or acquire our customers. Our inability to manage growth could materially and adversely affect our business Our past growth has placed, and any future growth of our operations will continue to place, a significant strain on our management personnel, systems and resources. We anticipate that we will need to implement a variety of new and upgraded sales, operational and financial enterprise-wide systems, information technology infrastructure, procedures and controls, including the improvement of our accounting and other internal management systems to manage this growth and maintain compliance with regulatory guidelines, including Sarbanes-Oxley Act requirements. To the extent our business grows, our internal management systems and processes will need to improve to ensure that we remain in compliance. We also expect that we will need to continue to expand, train, manage and motivate our workforce. All of these endeavors will require substantial management effort, and we anticipate that we will require additional management personnel and internal processes to manage these efforts and to plan for the succession from time to time of certain persons who have been key management and technical personnel. If we are unable to effectively manage our expanding global operations, including our international headquarters in Singapore, our business could be materially and adversely affected. We may be the victim of business disruptions and security breaches, including cyber-attacks, which could lead to liability or could damage our reputation and financial results Information technology system and/or network disruptions, regardless of the cause, but including acts of sabotage, error, or other actions, could harm the company’s operations. Failure to effectively prevent, detect, and recover from security breaches, including cyber-attacks, could result in the misuse of company assets, disruption to the company, diversion of management resources, regulatory inquiries, legal claims or proceedings, reputational damage, loss of sales and other costs to the company. We routinely face attacks that attempt to breach our security protocols, gain access to or disrupt our computerized systems or steal proprietary company, customer, partner or employee information. These attacks are sometimes successful. These attacks may be due to security breaches, employee error, theft, malfeasance, phishing schemes, ransomware, faulty password or data security management, or other irregularities. The theft, loss, destruction, unavailability or misuse of personal or business data collected, used, stored or transferred by us to run our business could result in increased security costs or costs related to defending legal claims. Industrial espionage, theft or loss of our intellectual property data could lead to counterfeit products or harm the competitive position of our products and services. Costs to implement, test and maintain measures to promote compliance with applicable privacy and data security laws as well as to protect the overall security of our system have been and are expected to continue to be significant. Attempted or successful attacks against our products and services could damage our reputation with customers or users and reduce demand for our products and services. Additionally, there is an increased risk that we may experience cybersecurity-related events such as COVID-19 themed phishing attacks and other security challenges as a result of most of our employees and our service providers working remotely from non-corporate managed networks during the ongoing COVID-19 pandemic and potentially continuing working remotely even after the COVID-19 pandemic has subsided. 16 Table of Contents In addition, the risk of cyber-attacks has increased in connection with the military conflict between Russia and Ukraine and the resulting geopolitical conflict. In light of those and other geopolitical events, nation-state actors or their supporters may launch retaliatory cyber-attacks, and may attempt to cause supply chain and other third-party service provider disruptions, or take other geopolitically motivated retaliatory actions that may disrupt our business operations, result in data compromise, or both. Nation-state actors have in the past carried out, and may in the future carry out, cyber-attacks to achieve their aims and goals, which may include espionage, information operations, monetary gain, ransomware, disruption, and destruction. In February 2022, the U.S. Cybersecurity and Infrastructure Security Agency issued a “Shields Up” alert for American organizations noting the potential for Russia’s cyber-attacks on Ukrainian government and critical infrastructure organizations to impact organizations both within and beyond the United States, particularly in the wake of sanctions imposed by the United States and its allies. These circumstances increase the likelihood of cyber-attacks and/or security breaches. We may be subject to information technology failures that could damage our reputation, business operations and financial condition We rely on information technology for the effective operation of our business. Our systems are subject to damage or interruption from a number of potential sources, including natural disasters, accidents, power disruptions, telecommunications failures, acts of terrorism or war, computer viruses, theft, physical or electronic break-ins, cyber-attacks, sabotage, vandalism, or similar events or disruptions. Our security measures may not detect or prevent such security breaches. Any such compromise of our information security could result in the theft or unauthorized publication or use of our confidential business or proprietary information, result in the unauthorized release of customer, supplier or employee data, result in a violation of privacy or other laws, expose us to a risk of litigation or damage our reputation. In addition, our inability to use or access information systems at critical points in time could unfavorably impact the timely and efficient operation of our business, which could negatively affect our business and operating results. Third parties with which we conduct business, such as foundries, assembly and test contractors, distributors and customers, have access to certain portions of our sensitive data. In the event that these third parties do not properly safeguard our data that they hold, security breaches could result and negatively impact our reputation, business operations and financial results. Additionally, a successful cyber-attack against one of these third-parties’ information technology systems may disrupt our supply chain. We may not be able to maintain our historical growth and may experience significant period-to-period fluctuations in our revenues and operating results, which may result in volatility in our stock price Although we have generally experienced revenue growth in our history, we may not be able to sustain this growth. We may also experience significant period-to-period fluctuations in our revenues and operating results in the future due to a number of factors, and any such variations may cause our stock price to fluctuate. In some future period our revenues or operating results may be below the expectations of public market analysts or investors. If this occurs, our stock price may drop, perhaps significantly. Table of Contents A number of factors, in addition to those cited in other risk factors applicable to our business, may contribute to fluctuations in our revenues and operating results, including: • ● The timing and volume of orders received from our customers; ● The timeliness of our new product introductions and the rate at which our new products may cannibalize our older products; ● The rate of acceptance of our products by our customers, including the acceptance of new products we may develop for integration in the products manufactured by such customers, which we refer to as “design wins”; ● The time lag and realization rate between “design wins” and production orders; ● Supplier capacity constraints; ● The demand for, and life cycles of, the products incorporating our mixed-signal solutions; ● The rate of adoption of mixed-signal products in the markets we target; ● Deferrals or reductions of customer orders in anticipation of new products or product enhancements from us or our competitors or other providers of mixed-signal ICs; ● Changes in product mix; ● The average selling prices for our products could drop suddenly due to competitive offerings or competitive predatory pricing; ● The average selling prices for our products generally decline over time; ● Changes in market standards; ● Impairment charges related to inventory, equipment or other long-lived assets; 17 Table of orders received from our customers; • The timeliness of our new product introductions and the rate at which our new products may cannibalize our older products; • The rate of acceptance of our products by our customers, including the acceptance of new products we may develop for integration in the products manufactured by such customers, which we refer to as "design wins"; • The time lag and realization rate between "design wins" and production orders; • The demand for, and life cycles of, the products incorporating our mixed-signal solutions; • The rate of adoption of mixed-signal products in the markets we target; • Deferrals or reductions of customer orders in anticipation of new products or product enhancements from us or our competitors or other providers of mixed-signal ICs; • Changes in product mix; • The average selling prices for our products could drop suddenly due to competitive offerings or competitive predatory pricing; • The average selling prices for our products generally decline over time; • Changes in market standards; • Impairment charges related to inventory, equipment or other long-lived assets; • The software used in our products, including software provided by third parties, may not meet the needs of our customers; • Significant legal costs to defend our intellectual property rights or respond to claims against us; and • The rate at which new markets emerge for products we are currently developing or for which our design expertise can be utilized to develop products for these new markets. Contents ● The software used in our products, including software provided by third parties, may not meet the needs of our customers; ● Our customers may not be able to obtain other components such as capacitors (which are currently in short supply) that they need to incorporate in conjunction with our products, leading to potential downturn in the demand for our products; ● Significant legal costs to defend our intellectual property rights or respond to claims against us; and ● The rate at which new markets emerge for products we are currently developing or for which our design expertise can be utilized to develop products for these new markets. The markets for consumer electronics, for example, are characterized by rapid fluctuations in demand and seasonality that result in corresponding fluctuations in the demand for our products that are incorporated in such devices. Additionally, the rate of technology acceptance by our customers results in fluctuating demand for our products as customers are reluctant to incorporate a new IC into their products until the new IC has achieved market acceptance. Once a new IC achieves market acceptance, demand for the new IC can quickly accelerate to a point and then level off such that rapid historical growth in sales of a product should not be viewed as indicative of continued future growth. In addition, demand can quickly decline for a product when a new IC product is introduced and receives market acceptance. Due to the various factors mentioned above, the results of any prior quarterly or annual periods should not be relied upon as an indication of our future operating performance. If we are unable to develop or acquire new and enhanced products that achieve market acceptance in a timely manner, our operating results and competitive position could be harmed         Our future success will depend on our ability to develop or acquire new products and product enhancements that achieve market acceptance in a timely and cost-effective manner. The development of mixed-signal ICs is highly complex, and we have at times experienced delays in completing the Table of Contents development and introduction of new products and product enhancements. Successful product development and market acceptance of our products depend on a number of factors, including: • Requirements of customers; • Accurate prediction of market and technical requirements; • Timely completion and introduction of new designs; • Timely qualification and certification of our products for use in our customers' products; • Commercial acceptance and volume production of the products into which our ICs will be incorporated; • Availability of foundry, assembly and test capacity; • Achievement of high manufacturing yields; • Quality, price, performance, power use and size of our products; • Availability, quality, price and performance of competing products and technologies; • Our customer service, application support capabilities and responsiveness; • Successful development of our relationships with existing and potential customers; • Technology, industry standards or end-user preferences; and • Cooperation of third-party software providers and our semiconductor vendors to support our chips within a system.         We cannot provide any assurance that products which we recently have developed or may develop in the future will achieve market acceptance. We have introduced to market or are in development of many products. If our products fail to achieve market acceptance, or if we fail to develop new products on a timely basis that achieve market acceptance, our growth prospects, operating results and competitive position could be adversely affected. The growth of the IoT market is dependent on the adoption of industry standards to permit devices to connect and communicate with each other. If the industry cannot agree on a common set of standards, then the growth of the IoT market may be slower than expected. Our research and development efforts are focused on a limited number of new technologies and products, and any delay in the development, or abandonment, of these technologies or products by industry participants, or their failure to achieve market acceptance, could compromise our competitive position Our products serve as components and solutions in electronic devices in various markets. As a result, we have devoted and expect to continue to devote a large amount of resources to develop products based on new and emerging technologies and standards that will be commercially introduced in the future. Research and development expense during fiscal 20172022 was $209.5$332.3 million, or 27.2%32.5% of revenues. A number of companies are actively involved in the development of these new technologies and standards. Should any of these companies delay or abandon their efforts to develop commercially available products based on new technologies and standards, our research and development efforts with respect to these technologies and standards likely would have no appreciable value. In addition, if we do not correctly anticipate new technologies and standards, or if the products that we develop based on these new technologies and standards fail to achieve market acceptance, our competitors may be better able to address market demand than we would. Furthermore, if markets for these new technologies and standards develop later than we anticipate, or do not develop at all, demand for our products that are currently in development would suffer, resulting in lower sales of these products than we currently anticipate. Table of Contents Significant litigation over intellectual property in our industry may cause us to become involved in costly and lengthy litigation which could seriously harm our business         In recent years, there has been significant litigation in the United States involving patents and other intellectual property rights. From time to time, we receive letters from various industry participants alleging infringement of patents, trademarks or misappropriation of trade secrets or from customers or suppliers requesting indemnification for claims brought against them by third parties. The exploratory nature of these inquiries has become relatively common in the semiconductor industry. We respond when we deem appropriate and as advised by legal counsel. We have been involved in litigation to protect our intellectual property rights in the past and may become involved in such litigation again in the future. We are currently involved in litigation in which we and certain of our customers have been accused of patent infringement related to our television tuner products. In the future, we may become involved in additional litigation to defend allegations of infringement asserted by others, both directly and indirectly as a result of certain industry-standard indemnities we may offer to our customers or suppliers. Legal proceedings could subject us to significant liability for damages or invalidate our proprietary rights. Legal proceedings initiated by us to protect our intellectual property rights could also result in counterclaims or countersuits against us. Any litigation, regardless of its outcome, would likely be time-consuming and expensive to resolve and would divert our management's time and attention. Intellectual property litigation also could force us to take specific actions, including: • Cease selling or manufacturing products that use the challenged intellectual property; • Obtain from the owner of the infringed intellectual property a right to a license to sell or use the relevant technology, which license may not be available on reasonable terms, or at all; • Redesign those products that use infringing intellectual property; or • Pursue legal remedies with third parties to enforce our indemnification rights, which may not adequately protect our interests. Any acquisitions we make could disrupt our business and harm our financial condition         As part of our growth and product diversification strategy, we continue to evaluate opportunities to acquire other businesses, intellectual property or technologies that would complement our current offerings, expand the breadth of our markets or enhance our technical capabilities. The acquisitions that we have made and may make in the future entail a number of risks that could materially and adversely affect our business and operating results, including: • Problems integrating the acquired operations, technologies or products with our existing business and products; • Diversion of management's time and attention from our core business; • Need for financial resources above our planned investment levels; • Difficulties in retaining business relationships with suppliers and customers of the acquired company; • Risks associated with entering markets in which we lack prior experience; • Risks associated with the transfer of licenses of intellectual property; • Increased operating costs due to acquired overhead; • Tax issues associated with acquisitions; • Acquisition-related disputes, including disputes over earn-outs and escrows; • Potential loss of key employees of the acquired company; and Table of Contents • Potential impairment of related goodwill and intangible assets.         Future acquisitions also could cause us to incur debt or contingent liabilities or cause us to issue equity securities that could negatively impact the ownership percentages of existing shareholders. Our proposed acquisition of the Z-Wave business of Sigma Designs, Inc. is contingent upon approval by Sigma Designs' stockholders and may not be consummated. In the event the acquisition is consummated, the integration of the Z-Wave business with our own may be more difficult, costly or time consuming than expected, and the anticipated benefits and cost savings of the acquisition may not be fully realized, which could adversely impact our business operations, financial condition and results of operations.         On December 7, 2017 we entered into an agreement with Sigma Designs pursuant to which we expect to acquire its Z-Wave business. See Note 8,Acquisitions, to the Consolidated Financial Statements for additional information.         The proposed acquisition is subject to the satisfaction of a number of closing conditions, including the approval of the stockholders of Sigma Designs and the expiration or termination of the applicable waiting periods under the Hart-Scott-Rodino Antitrust Improvements Act of 1976 and the rules thereunder and there can be no assurance that these conditions will be satisfied. In the event the acquisition of the Z-Wave business is consummated, the success of the acquisition, including the achievement of anticipated benefits and cost savings, is subject to a number of uncertainties and will depend, in part, on our ability to successfully combine and integrate the Z-Wave business into our own core business in an efficient and effective manner. Potential difficulties that we may encounter include the following, any of which could result in the anticipated benefits of the acquisition not being realized or harm our operations or financial condition: • The inability to successfully integrate the Z-Wave business into our own in a manner that permits us to achieve the cost savings and operating synergies anticipated from the acquisition; • The integration of the Z-Wave business may create a diversion of management's time and attention from our core business, or disrupt our current plans and operations; • The loss of key management or technical personnel necessary for the continued operation of the Z-Wave business or our core business, particularly our experienced engineers; • Integrating personnel, IT systems and corporate, finance and administrative infrastructures of the Z-Wave business with our own while maintaining focus on providing consistent, high quality products and services; • Coordinating and integrating our internal operations, compensation programs, policies and procedures, and corporate structures; • Potential unknown liabilities and unforeseen or increased costs and expenses, including unforeseen litigation; and • The possibility of faulty assumptions underlying expectations regarding potential synergies and the integration process.         Any of these factors could result in our failing to realize the anticipated benefits of the acquisition of the Z-Wave business, on the expected timeline or at all, and could adversely impact our business operations and operating results. We may be unable to protect our intellectual property, which would negatively affect our ability to compete         Our products rely on our proprietary technology, and we expect that future technological advances made by us will be critical to sustain market acceptance of our products. Therefore, we believe that the protection of our intellectual property rights is and will continue to be important to the success of our Table of Contents business. We rely on a combination of patent, copyright, trademark and trade secret laws and restrictions on disclosure to protect our intellectual property rights. We also enter into confidentiality or license agreements with our employees, consultants, intellectual property providers and business partners, and control access to and distribution of our documentation and other proprietary information. Despite these efforts, unauthorized parties may attempt to copy or otherwise obtain and use our proprietary technology. Monitoring unauthorized use of our technology is difficult, and we cannot be certain that the steps we have taken will prevent unauthorized use of our technology, particularly in foreign countries where the laws may not protect our proprietary rights as fully as in the United States. We cannot be certain that patents will be issued as a result of our pending applications nor can we be certain that any issued patents would protect or benefit us or give us adequate protection from competing products. For example, issued patents may be circumvented or challenged and declared invalid or unenforceable. We also cannot be certain that others will not develop effective competing technologies on their own. Failure to manage our distribution channel relationships could impede our future growth         The future growth of our business will depend in large part on our ability to manage our relationships with current and future distributors and sales representatives, develop additional channels for the distribution and sale of our products and manage these relationships. During fiscal 2017, 71% of our revenue was derived from distributors. As we execute our indirect sales strategy, we must manage the potential conflicts that may arise with our direct sales efforts. For example, conflicts with a distributor may arise when a customer begins purchasing directly from us rather than through the distributor. The inability to successfully execute or manage a multi-channel sales strategy could impede our future growth. In addition, relationships with our distributors often involve the use of price protection and inventory return rights. This often requires a significant amount of sales management's time and system resources to manage properly. We depend on a limited number of customers for a significant portion of our revenues, and the loss of, or a significant reduction in orders from, any key customer could significantly reduce our revenues         The loss of any of our key customers, or a significant reduction in sales to any one of them, would significantly reduce our revenues and adversely affect our business. During fiscal 2017, our ten largest customers accounted for 20% of our revenues. Some of the markets for our products are dominated by a small number of potential customers. Therefore, our operating results in the foreseeable future will continue to depend on our ability to sell to these dominant customers, as well as the ability of these customers to sell products that incorporate our IC products. In the future, these customers may decide not to purchase our products at all, purchase fewer products than they did in the past or alter their purchasing patterns, particularly because: • We do not have material long-term purchase contracts with our customers; • Substantially all of our sales to date have been made on a purchase order basis, which permits our customers to cancel, change or delay product purchase commitments with little or no notice to us and without penalty; • Some of our customers may have efforts underway to actively diversify their vendor base which could reduce purchases of our products; and • Some of our customers have developed or acquired products that compete directly with products these customers purchase from us, which could affect our customers' purchasing decisions in the future. Table of Contents         Our customers regularly evaluate alternative sources of supply in order to diversify their supplier base, which increases their negotiating leverage with us and protects their ability to secure these components. We believe that any expansion of our customers' supplier bases could have an adverse effect on the prices we are able to charge and volume of product that we are able to sell to our customers, which would negatively affect our revenues and operating results. We are subject to increased inventory risks and costs because we build our products based on forecasts provided by customers before receiving purchase orders for the products         In order to ensure availability of our products for some of our largest customers, we start the manufacturing of our products in advance of receiving purchase orders based on forecasts provided by these customers. However, these forecasts do not represent binding purchase commitments and we do not recognize sales for these products until they are shipped to the customer. As a result, we incur inventory and manufacturing costs in advance of anticipated sales. Because demand for our products may not materialize, manufacturing based on forecasts subjects us to increased risks of high inventory carrying costs, increased obsolescence and increased operating costs. These inventory risks are exacerbated when our customers purchase indirectly through contract manufacturers or hold component inventory levels greater than their consumption rate because this causes us to have less visibility regarding the accumulated levels of inventory for such customers. A resulting write-off of unusable or excess inventories would adversely affect our operating results. Our products are complex and may contain errors which could lead to liability, an increase in our costs and/or a reduction in our revenues         Our products are complex and may contain errors, particularly when first introduced and/or when new versions are released. Our products are increasingly designed in more complex processes, including higher levels of software and hardware integration in modules and system-level solutions and/or include elements provided by third parties which further increase the risk of errors. We rely primarily on our in-house testing personnel to design test operations and procedures to detect any errors or vulnerabilities prior to delivery of our products to our customers.         Should problems occur in the operation or performance of our products, we may experience delays in meeting key introduction dates or scheduled delivery dates to our customers. These errors could also cause significant re-engineering costs, the diversion of our engineering personnel's attention from our product development efforts and cause significant customer relations and business reputation problems. Any defects could result in refunds, product replacement, product recall or other liability. Any of the foregoing could impose substantial costs and harm our business.         Product liability, data breach or cyber liability claims may be asserted with respect to our products. Many of our products focus on wireless connectivity and the IoT market and such connectivity may make these products particularly susceptible to cyber-attacks. Our products are typically sold at prices that are significantly lower than the cost of the end-products into which they are incorporated. A defect, failure or vulnerability in our product could cause failure in our customer's end-product, so we could face claims for damages that are disproportionately higher than the revenues and profits we receive from the products involved. Furthermore, product liability risks are particularly significant with respect to medical and automotive applications because of the risk of serious harm to users of these end-products. There can be no assurance that any insurance we maintain will sufficiently protect us from such claims. Table of Contents We rely on third parties to manufacture, assemble and test our products and the failure to successfully manage our relationships with our manufacturers and subcontractors would negatively impact our ability to sell our products         We do not have our own wafer fab manufacturing facilities. Therefore, we rely on third-party vendors to manufacture the products we design. We also currently rely on Asian third-party assembly subcontractors to assemble and package the silicon chips provided by the wafers for use in final products. Additionally, we rely on these offshore subcontractors for a substantial portion of the testing requirements of our products prior to shipping. We expect utilization of third-party subcontractors to continue in the future.         The cyclical nature of the semiconductor industry drives wide fluctuations in available capacity at third-party vendors. On occasion, we have been unable to adequately respond to unexpected increases in customer demand due to capacity constraints and, therefore, were unable to benefit from this incremental demand. We may be unable to obtain adequate foundry, assembly or test capacity from our third-party subcontractors to meet our customers' delivery requirements even if we adequately forecast customer demand.         There are significant risks associated with relying on these third-party foundries and subcontractors, including: • Failure by us, our customers or their end customers to qualify a selected supplier; • Potential insolvency of the third-party subcontractors; • Reduced control over delivery schedules and quality; • Limited warranties on wafers or products supplied to us; • Potential increases in prices or payments in advance for capacity; • Increased need for international-based supply, logistics and financial management; • Their inability to supply or support new or changing packaging technologies; and • Low test yields.         We typically do not have long-term supply contracts with our third-party vendors which obligate the vendor to perform services and supply products to us for a specific period, in specific quantities, and at specific prices. Our third-party foundry, assembly and test subcontractors typically do not guarantee that adequate capacity will be available to us within the time required to meet demand for our products. In the event that these vendors fail to meet our demand for whatever reason, we expect that it would take up to 12 months to transition performance of these services to new providers. Such a transition may also require qualification of the new providers by our customers or their end customers.         Most of the silicon wafers for the products that we have sold were manufactured either by TSMC or TSMC's affiliates or by SMIC. Our customers typically complete their own qualification process. If we fail to properly balance customer demand across the existing semiconductor fabrication facilities that we utilize or are required by our foundry partners to increase, or otherwise change the number of fab lines that we utilize for our production, we might not be able to fulfill demand for our products and may need to divert our engineering resources away from new product development initiatives to support the fab line transition, which would adversely affect our operating results. Our customers require our products to undergo a lengthy and expensive qualification process without any assurance of product sales         Prior to purchasing our products, our customers require that our products undergo an extensive qualification process, which involves testing of the products in the customer's system as well as rigorous Table of Contents reliability testing. This qualification process may continue for six months or longer. However, qualification of a product by a customer does not ensure any sales of the product to that customer. Even after successful qualification and sales of a product to a customer, a subsequent revision to the product or software, changes in the IC's manufacturing process or the selection of a new supplier by us may require a new qualification process, which may result in delays and in us holding excess or obsolete inventory. After our products are qualified, it can take an additional six months or more before the customer commences volume production of components or devices that incorporate our products. Despite these uncertainties, we devote substantial resources, including design, engineering, sales, marketing and management efforts, toward qualifying our products with customers in anticipation of sales. If we are unsuccessful or delayed in qualifying any of our products with a customer, such failure or delay would preclude or delay sales of such product to the customer, which may impede our growth and cause our business to suffer. We are a global company, which subjects us to additional business risks including logistical and financial complexity, political instability and currency fluctuations         We have established international subsidiaries and have opened offices in international markets to support our activities in Asia, the Americas and Europe. This has included the establishment of a headquarters in Singapore for non-U.S. operations. The percentage of our revenues derived from outside of the United States was 85% during fiscal 2017. We may not be able to maintain or increase global market demand for our products. Our international operations are subject to a number of risks, including: • Complexity and costs of managing international operations and related tax obligations, including our headquarters for non-U.S. operations in Singapore; • Protectionist laws and business practices; • Difficulties related to the protection of our intellectual property rights in some countries; • Multiple, conflicting and changing tax and other laws and regulations that may impact both our international and domestic tax and other liabilities and result in increased complexity and costs; • Longer sales cycles; • Greater difficulty in accounts receivable collection and longer collection periods; • High levels of distributor inventory subject to price protection and rights of return to us; • Political and economic instability; • Greater difficulty in hiring and retaining qualified personnel; and • The need to have business and operations systems that can meet the needs of our international business and operating structure.         To date, substantially all of our sales to international customers and purchases of components from international suppliers have been denominated in U.S. dollars. As a result, an increase in the value of the U.S. dollar relative to foreign currencies could make our products more expensive for our international customers to purchase, thus rendering our products less competitive. Similarly, a decrease in the value of the U.S. dollar could reduce our buying power with respect to international suppliers. Our inability to manage growth could materially and adversely affect our business         Our past growth has placed, and any future growth of our operations will continue to place, a significant strain on our management personnel, systems and resources. We anticipate that we will need to implement a variety of new and upgraded sales, operational and financial enterprise-wide systems, Table of Contents information technology infrastructure, procedures and controls, including the improvement of our accounting and other internal management systems to manage this growth and maintain compliance with regulatory guidelines, including Sarbanes-Oxley Act requirements. To the extent our business grows, our internal management systems and processes will need to improve to ensure that we remain in compliance. We also expect that we will need to continue to expand, train, manage and motivate our workforce. All of these endeavors will require substantial management effort, and we anticipate that we will require additional management personnel and internal processes to manage these efforts and to plan for the succession from time to time of certain persons who have been key management and technical personnel. If we are unable to effectively manage our expanding global operations, including our international headquarters in Singapore, our business could be materially and adversely affected. Our products incorporate technology licensed from third parties         We incorporate technology (including software) licensed from third parties in our products. We could be subjected to claims of infringement regardless of our lack of involvement in the development of the licensed technology. Although a third-party licensor is typically obligated to indemnify us if the licensed technology infringes on another party's intellectual property rights, such indemnification is typically limited in amount and may be worthless if the licensor becomes insolvent. SeeSignificant litigation over intellectual property in our industry may cause us to become involved in costly and lengthy litigation which could seriously harm our business. Furthermore, any failure of third-party technology to perform properly would adversely affect sales of our products incorporating such technology. We are subject to risks relating to product concentration         We derive a substantial portion of our revenues from a limited number of products, and we expect these products to continue to account for a large percentage of our revenues in the near term. Continued market acceptance of these products, is therefore, critical to our future success. In addition, substantially all of our products that we have sold include technology related to one or more of our issued U.S. patents. If these patents are found to be invalid or unenforceable, our competitors could introduce competitive products that could reduce both the volume and price per unit of our products. Our business, operating results, financial condition and cash flows could therefore be adversely affected by: • A decline in demand for any of our more significant products; • Failure of our products to achieve continued market acceptance; • Competitive products; • New technological standards or changes to existing standards that we are unable to address with our products; • A failure to release new products or enhanced versions of our existing products on a timely basis; and • The failure of our new products to achieve market acceptance. We are subject to credit risks related to our accounts receivable         We do not generally obtain letters of credit or other security for payment from customers, distributors or contract manufacturers. Accordingly, we are not protected against accounts receivable default or bankruptcy by these entities. Our ten largest customers or distributors represent a substantial majority of our accounts receivable. If any such customer or distributor, or a material portion of our smaller customers or distributors, were to become insolvent or otherwise not satisfy their obligations to us, we could be materially harmed. Table of Contents We depend on our key personnel to manage our business effectively in a rapidly changing market, and if we are unable to retain our current personnel and hire additional personnel, our ability to develop and successfully market our products could be harmed We believe our future success will depend in large part upon our ability to attract and retain highly skilled managerial, engineering, sales and marketing personnel. We believe that our future success will be dependent on retaining the services of our key personnel, developing their successors and certain internal processes to reduce our reliance on specific individuals, and on properly managing the transition of key roles when they occur. There is currently a shortage of qualified personnel with significant experience in the design, development, manufacturing, marketing and sales of analog and mixed-signal products. In particular, there is a shortage of engineers who are familiar with the intricacies of the design and manufacturability of analog elements, and competition for such personnel is intense. Our key technical personnel represent a significant asset and serve as the primary source for our technological and product innovations. We may not be successful in attracting and retaining sufficient numbers of technical personnel to support our anticipated growth. The loss of any of our key employees or the inability to attract or retain qualified personnel both in the United States and internationally, including engineers, sales, applications and marketing personnel, could delay the development and introduction of, and negatively impact our ability to sell, our products. 18 Table of Contents If we are unable to develop or acquire new and enhanced products that achieve market acceptance in a timely manner, our operating results and competitive position could be harmed Our future success will depend on our ability to develop or acquire new products and product enhancements that achieve market acceptance in a timely and cost-effective manner. The development of mixed-signal ICs is highly complex, and we have at times experienced delays in completing the development and introduction of new products and product enhancements. Successful product development and market acceptance of our products depend on a number of factors, including: ● Requirements of customers; ● Accurate prediction of market and technical requirements; ● Timely completion and introduction of new designs; ● Timely qualification and certification of our products for use in our customers’ products; ● Commercial acceptance and volume production of the products into which our ICs will be incorporated; ● Availability of foundry, assembly and test capacity; ● Achievement of high manufacturing yields; ● Quality, price, performance, power use and size of our products; ● Availability, quality, price and performance of competing products and technologies; ● Our customer service, application support capabilities and responsiveness; ● Successful development of our relationships with existing and potential customers; ● Technology, industry standards or end-user preferences; and ● Cooperation of third-party software providers and our semiconductor vendors to support our chips within a system. We cannot provide any assurance that products which we recently have developed or may develop in the future will achieve market acceptance. We have introduced to market or are in development of many products. If our products fail to achieve market acceptance, or if we fail to develop new products on a timely basis that achieve market acceptance, our growth prospects, operating results and competitive position could be adversely affected. The growth of the IoT market is dependent on the adoption of industry standards to permit devices to connect and communicate with each other. If the industry cannot agree on a common set of standards, then the growth of the IoT market may be slower than expected. Any acquisitions we make could disrupt our business and harm our financial condition As part of our growth and product diversification strategy, we continue to evaluate opportunities to acquire other businesses, intellectual property or technologies that would complement our current offerings, expand the breadth of our markets or enhance our technical capabilities. The acquisitions that we have made and may make in the future entail a number of risks that could materially and adversely affect our business and operating results, including: ● Problems integrating the acquired operations, technologies or products with our existing business and products; ● Diversion of management’s time and attention from our core business; ● Need for financial resources above our planned investment levels; ● Difficulties in retaining business relationships with suppliers and customers of the acquired company; ● Risks associated with entering markets in which we lack prior experience; ● Risks associated with the transfer of licenses of intellectual property; ● Increased operating costs due to acquired overhead; ● Tax issues associated with acquisitions; ● Acquisition-related disputes, including disputes over earn-outs and escrows; ● Potential loss of key employees of the acquired company; and ● Potential impairment of related goodwill and intangible assets. In particular, the extent of the impact of the COVID-19 pandemic on our ability to complete and integrate any future acquisition into our business is unpredictable and will depend on future developments, including the duration, severity and spread of the pandemic, related restrictions on travel and transportation, and other actions that may be taken by governmental authorities. Future acquisitions also could cause us to incur debt or contingent liabilities or cause us to issue equity securities that could negatively impact the ownership percentages of existing shareholders. 19 Table of Contents The average selling prices of our products could decrease rapidly which may negatively impact our revenues and gross profit We may experience substantial period-to-period fluctuations in future operating results due to the erosion of our average selling prices. In the past, we have reduced the average unit price of our products in anticipation of or in response to competitive pricing pressures, new product introductions by us or our competitors and other factors. If we are unable to offset any such reductions in our average selling prices by increasing our sales volumes, increasing our sales content per application or reducing production costs, our gross profit and revenues will suffer. To maintain our gross profit, we will need to develop and introduce new products and product enhancements on a timely basis and continually reduce our costs. Our failure to do so could cause our revenues and gross profit to decline. Failure to manage our distribution channel relationships could impede our future growth The future growth of our business will depend in large part on our ability to manage our relationships with current and future distributors and sales representatives, develop additional channels for the distribution and sale of our products and manage these relationships. During fiscal 2022, 81% of our revenue was derived from distributors (and 49% of our revenue was derived from our two largest distributors). As we execute our indirect sales strategy, we must manage the potential conflicts that may arise with our direct sales efforts. For example, conflicts with a distributor may arise when a customer begins purchasing directly from us rather than through the distributor. The inability to successfully execute or manage a multi-channel sales strategy could impede our future growth. In addition, relationships with our distributors often involve the use of price protection and inventory return rights. This often requires a significant amount of sales management’s time and system resources to manage properly. We do not have long-term commitments from our customers Our customers regularly evaluate alternative sources of supply in order to diversify their supplier base, which increases their negotiating leverage with us and protects their ability to secure these components. We believe that any expansion of our customers’ supplier bases could have an adverse effect on the prices we are able to charge and volume of product that we are able to sell to our customers, which would negatively affect our revenues and operating results. Customers may decide not to purchase our products at all, purchase fewer products than they did in the past, or alter their purchasing patterns, particularly because: ● We do not have material long-term purchase contracts with our customers; ● Substantially all of our sales to date have been made on a purchase order basis, which permits our customers to cancel, change or delay product purchase commitments with little or no notice to us and without penalty; ● Some of our customers may have efforts underway to actively diversify their vendor base which could reduce purchases of our products; and ● Some of our customers have developed or acquired products that compete directly with products these customers purchase from us, which could affect our customers’ purchasing decisions in the future. We are subject to increased inventory risks and costs because we build our products based on forecasts provided by customers before receiving purchase orders for the products In order to ensure availability of our products for some of our largest customers, we start the manufacturing of our products in advance of receiving purchase orders based on forecasts provided by these customers. However, these forecasts do not represent binding purchase commitments and we do not recognize sales for these products until they are shipped to the customer. As a result, we incur inventory and manufacturing costs in advance of anticipated sales. Because demand for our products may not materialize, manufacturing based on forecasts subjects us to increased risks of high inventory carrying costs, increased obsolescence and increased operating costs. These inventory risks are exacerbated when our customers purchase indirectly through contract manufacturers or hold component inventory levels greater than their consumption rate because this causes us to have less visibility regarding the accumulated levels of inventory for such customers. A resulting write-off of unusable or excess inventories would adversely affect our operating results. 20 Table of Contents The COVID-19 pandemic could adversely affect our business, results of operations, and financial condition The COVID-19 pandemic has negatively impacted the global economy, disrupted global supply chains and created significant volatility and disruption of financial markets. The extent of the impact of the COVID-19 pandemic on our operational and financial performance will depend on future developments, including the duration, severity and spread of the pandemic, related restrictions on travel and transportation and other actions that may be taken by governmental authorities, the impact to the business of our suppliers or customers and other items identified in our risk factors, all of which are uncertain and cannot be predicted. The impacts of the COVID-19 pandemic, or a similar public health crisis, on our business, customers, suppliers, employees, markets and financial results and condition are uncertain, evolving and dependent on numerous unpredictable factors outside of our control, including: ● The duration and impact of a global economic recession or depression that could reduce demand and/or pricing for our products; ● Disruptions to our business and supply chain (and the business and supply chains of our customers) in connection with the sourcing of materials, equipment and engineering support, and services from geographic areas impacted by the public health crisis, including disruptions caused by illnesses, quarantines and restrictions on people’s ability to work, office and factory closures, disruptions to ports and other shipping infrastructure, border closures, and other travel or health-related restrictions; ● Delays or limitations on the ability of our customers to make timely payments; ● Governmental actions to limit exposure to and spreading of such infectious diseases, such as travel restrictions, quarantines and business shutdowns or slowdowns, facility closures or other restrictions; ● Deterioration of worldwide credit and financial markets that could limit our ability to obtain external financing to fund our operations and capital expenditures or to refinance our existing indebtedness; ● Potential asset impairments, including goodwill, intangible assets, investments and other assets; ● Complexities related to our employees temporarily working from home as well as increased cyber-related risks due to our employees working from home; ● Challenges with reopening our offices, including implementing a hybrid model of working from home or the office, establishing appropriate office safety protocols, maintaining our corporate culture, and continuing to attract, retain and motivate our employees; ● Potential failure of our computer systems or communication systems; and ● Investment-related risks, including difficulties in liquidating investments due to current market conditions and adverse investment performance. There can be no assurance that any decrease in sales resulting from the COVID-19 pandemic or a similar public health crisis will be offset by increased sales in subsequent periods. Even after the COVID-19 pandemic or a similar public health crisis has subsided, we may continue to experience materially adverse impacts to our business as a result of its global economic impact, including any recession, economic downturn or increased unemployment that has occurred or may occur in the future. An extended period of global supply chain and economic disruption could materially affect our business, results of operations, access to sources of liquidity and financial condition. Our products are complex and may contain errors which could lead to liability, an increase in our costs and/or a reduction in our revenues Our products are complex and may contain errors, particularly when first introduced and/or when new versions are released. Our products are increasingly designed in more complex processes, including higher levels of software and hardware integration in modules and system-level solutions and/or include elements provided by third parties which further increase the risk of errors. We rely primarily on our in-house testing personnel to design test operations and procedures to detect any errors or vulnerabilities prior to delivery of our products to our customers. Should problems occur in the operation or performance of our products, we may experience delays in meeting key introduction dates or scheduled delivery dates to our customers. These errors could also cause significant re-engineering costs, the diversion of our engineering personnel’s attention from our product development efforts and cause significant customer relations and business reputation problems. Any defects could result in refunds, product replacement, product recall or other liability. Any of the foregoing could impose substantial costs and harm our business. 21 Table of Contents Product liability, data breach or cyber liability claims may be asserted with respect to our products. Many of our products focus on wireless connectivity and the IoT market and such connectivity may make these products particularly susceptible to cyber-attacks. Our products are typically sold at prices that are significantly lower than the cost of the end-products into which they are incorporated. A defect, failure or vulnerability in our product could cause failure in our customer’s end-product, so we could face claims for damages that are disproportionately higher than the revenues and profits we receive from the products involved. Furthermore, product liability risks are particularly significant with respect to medical and automotive applications because of the risk of serious harm to users of these end-products. There can be no assurance that any insurance we maintain will sufficiently protect us from such claims. Our customers require our products to undergo a lengthy and expensive qualification process without any assurance of product sales Prior to purchasing our products, our customers require that our products undergo an extensive qualification process, which involves testing of the products in the customer’s system as well as rigorous reliability testing. This qualification process may continue for six months or longer. However, qualification of a product by a customer does not ensure any sales of the product to that customer. Even after successful qualification and sales of a product to a customer, a subsequent revision to the product or software, changes in the IC’s manufacturing process or the selection of a new supplier by us may require a new qualification process, which may result in delays and in us holding excess or obsolete inventory. After our products are qualified, it can take an additional six months or more before the customer commences volume production of components or devices that incorporate our products. Despite these uncertainties, we devote substantial resources, including design, engineering, sales, marketing and management efforts, toward qualifying our products with customers in anticipation of sales. If we are unsuccessful or delayed in qualifying any of our products with a customer, such failure or delay would preclude or delay sales of such product to the customer, which may impede our growth and cause our business to suffer. We are subject to risks relating to product concentration We derive a substantial portion of our revenues from a limited number of products, and we expect these products to continue to account for a large percentage of our revenues in the near term. Continued market acceptance of these products, is therefore, critical to our future success. In addition, substantially all of our products that we have sold include technology related to one or more of our issued U.S. patents. If these patents are found to be invalid or unenforceable, our competitors could introduce competitive products that could reduce both the volume and price per unit of our products. Our business, operating results, financial condition and cash flows could therefore be adversely affected by: ● A decline in demand for any of our more significant products; ● Failure of our products to achieve continued market acceptance; ● Competitive products; ● New technological standards or changes to existing standards that we are unable to address with our products; ● A failure to release new products or enhanced versions of our existing products on a timely basis; and ● The failure of our new products to achieve market acceptance. Any dispositions could harm our financial condition Any disposition of a business or product line would entail a number of risks that could materially and adversely affect our business and operating results, including: • Diversion of management's time and attention from our core business; • Difficulties separating the divested business; • Risks to relations with customers who previously purchased products from our disposed product line; • Reduced leverage with suppliers due to reduced aggregate volume; • Risks related to employee relations; • Risks associated with the transfer and licensing of intellectual property; • Security risks and other liabilities related to the transition services provided in connection with the disposition; • Tax issues associated with dispositions; and • Disposition-related disputes, including disputes over earn-outs and escrows. ● Diversion of management’s time and attention from our core business; ● Difficulties separating the divested business; ● Risks to relations with customers who previously purchased products from our disposed product line; ● Reduced leverage with suppliers due to reduced aggregate volume; ● Risks related to employee relations; ● Risks that the disposition is not completed on the expected timeline, or at all; ● Risks associated with the transfer and licensing of intellectual property; ● Risks that we do not realize the anticipated benefits from the disposition; ● Risks from third-party claims arising out of the disposition; ● Security risks and other liabilities related to the transition services provided in connection with the disposition; ● Tax issues associated with dispositions; and Our stock price may be volatile22         The market price of our common stock has been volatile in the past and may be volatile in the future. The market price of our common stock may be significantly affected by the following factors: • Actual or anticipated fluctuations in our operating results; • Changes in financial estimates by securities analysts or our failure to perform in line with such estimates; • Changes in market valuations of other technology companies, particularly semiconductor companies; • Announcements by us or our competitors of significant technical innovations, acquisitions, strategic partnerships, joint ventures or capital commitments; Table of Contents • Introduction of technologies or product enhancements that reduce the need for our products; • The loss of, or decrease in sales to, one or more key customers; • A large sale of stock by a significant shareholder; • Dilution from the issuance of our stock in connection with acquisitions; • The addition or removal of our stock to or from a stock index fund; • Departures of key personnel; • The required expensing of stock awards; and • The required changes in our reported revenue and revenue recognition accounting policy expected under Accounting Standards Update (ASU) No. 2014-09,Revenue from Contracts with Customers (Topic 606). ● Disposition-related disputes, including disputes over earn-outs and escrows.         The stock market has experienced extreme volatility that often has been unrelated to the performance of particular companies. These market fluctuations may cause our stock price to fall regardless of our performance. Most of our current manufacturers, assemblers, test service providers, distributors and customers are concentrated in the same geographic region, which increases the risk that a natural disaster, epidemic, labor strike, war or political unrest could disrupt our operations or sales         Most of our foundries and several of our assembly and test subcontractors' sites are located in Taiwan and most of our other foundry, assembly and test subcontractors are located in the Pacific Rim region. In addition, many of our customers are located in the Pacific Rim region. The risk of earthquakes in Taiwan and the Pacific Rim region is significant due to the proximity of major earthquake fault lines in the area. Earthquakes, tsunamis, fire, flooding, lack of water or other natural disasters, an epidemic, political unrest, war, labor strikes or work stoppages in countries where our semiconductor manufacturers, assemblers and test subcontractors are located, likely would result in the disruption of our foundry, assembly or test capacity. There can be no assurance that alternate capacity could be obtained on favorable terms, if at all.         A natural disaster, epidemic, labor strike, war or political unrest where our customers' facilities are located would likely reduce our sales to such customers. North Korea's recent geopolitical maneuverings, including nuclear weapons and long-range missile testing, have created unrest. Such unrest could create economic uncertainty or instability, could escalate to war or otherwise adversely affect South Korea and our South Korean customers and reduce our sales to such customers, which would materially and adversely affect our operating results. In addition, a significant portion of the assembly and testing of our products occurs in South Korea. Any disruption resulting from these events could also cause significant delays in shipments of our products until we are able to shift our manufacturing, assembling or testing from the affected subcontractor to another third-party vendor. The semiconductor manufacturing process is highly complex and, from time to time, manufacturing yields may fall below our expectations, which could result in our inability to satisfy demand for our products in a timely manner and may decrease our gross marginsprofit due to higher unit costs The manufacturing of our products is a highly complex and technologically demanding process. Although we work closely with our foundries and assemblers to minimize the likelihood of reduced manufacturing yields, we have from time to time experienced lower than anticipated manufacturing yields. Changes in manufacturing processes or the inadvertent use of defective or contaminated materials could result in lower than anticipated manufacturing yields or unacceptable performance deficiencies, which could lower our gross margins.profit. If our foundries fail to deliver fabricated silicon Table of Contents wafers of satisfactory quality in a timely manner, we will be unable to meet our customers'customers’ demand for our products in a timely manner, which would adversely affect our operating results and damage our customer relationships. We depend on our customers to support our products, and some of our customers offer competing products We rely on our customers to provide hardware, software, intellectual property indemnification and other technical support for the products supplied by our customers. If our customers do not provide the required functionality or if our customers do not provide satisfactory support for their products, the demand for these devices that incorporate our products may diminish or we may otherwise be materially adversely affected. Any reduction in the demand for these devices would significantly reduce our revenues. In certain products, some of our customers offer their own competitive products. These customers may find it advantageous to support their own offerings in the marketplace in lieu of promoting our products. Changes in the privacy and data security/protection laws could have an adverse effect on our operations Federal, state and international privacy-related or data protection laws and regulations could have an adverse effect on our operations. Complying with these laws and the possibility of proceedings against us by governmental entities or others in relation to these laws could increase operational costs. In May 2018, the European Union’s General Data Protection Regulation (“GDPR”) went into effect, replacing the EU’s 1995 Data Protection Directive. The costs of compliance with the GDPR and the potential for fines and penalties in the event of a breach of the GDPR may have an adverse effect on our operations. Our products must conform to industry standards and technology in order to be accepted by end users in our markets Generally, our products comprise only a part of a device. All components of such devices must uniformly comply with industry standards in order to operate efficiently together. We depend on companies that provide other components of the devices to support prevailing industry standards. Many of these companies are significantly larger and more influential in affecting industry standards than we are. Some industry standards may not be widely adopted or implemented uniformly, and competing standards may emerge that may be preferred by our customers or end users. If larger companies do not support the same industry standards that we do, or if competing standards emerge, market acceptance of our products could be adversely affected which would harm our business. Products for certain applications are based on industry standards that are continually evolving. Our ability to compete in the future will depend on our ability to identify and ensure compliance with these evolving industry standards. The emergence of new industry standards could render our products incompatible with products developed by other suppliers. As a result, we could be required to invest significant time and effort and to incur significant expense to redesign our products to ensure compliance with relevant standards. If our products are not in compliance with prevailing industry standards for a significant period of time, we could miss opportunities to achieve crucial design wins. For example, the IoT market is relatively new and is continuously evolving. Furthermore, products in the IoT market frequently require interoperability across multiple standards. We may need to adjust our portfolio to meet the needs of this evolving market through acquisitions or significant new investments in research and development. Our pursuit of necessary technological advances may require substantial time and expense. We may not be successful in developing or using new technologies or in developing new products or product enhancements that achieve market acceptance. If our products fail to achieve market acceptance, our growth prospects, operating results and competitive position could be adversely affected. 23 Table of Contents Intellectual Property Risks Significant litigation over intellectual property in our industry may cause us to become involved in costly and lengthy litigation which could adversely affect our business The semiconductor and software industries have experienced significant litigation involving patents and other intellectual property rights. From time to time, third parties, including non-practicing entities, allege intellectual property infringement by our products, our customers’ products, or products using technologies or communications standards used in our industry. We also receive communications from customers or suppliers requesting indemnification for allegations brought against them by third parties. Some of these allegations have resulted, and may result in the future, in our involvement in litigation. We have certain contractual obligations to defend and indemnify our customers from certain infringement claims. We also have been involved in litigation to protect our intellectual property rights in the past and may become involved in such litigation again in the future. Given the unpredictable nature of litigation and the complexity of the technology, we may not prevail in any such litigation. Legal proceedings could subject us to significant liability, invalidate our proprietary rights, or harm our businesses and our ability to compete. Legal proceedings initiated by us to protect our intellectual property rights could also result in counterclaims or countersuits against us. Any litigation, regardless of its outcome or merit, could be time-consuming and expensive to resolve and could divert our management’s time and attention. Intellectual property litigation also could force us to take specific actions, including: ● Cease using, selling or manufacturing certain products, services or processes; ● Attempt to obtain a license, which license may require the payment of substantial royalties or may not be available on reasonable terms or at all; ● Incur significant costs, time delays and lost business opportunities to develop alternative technologies or redesign products; or ● Pursue legal remedies with third parties to enforce our indemnification rights, which may not adequately protect our interests. We may be unable to protect our intellectual property, which would negatively affect our ability to compete Our products rely on our proprietary technology, and we expect that future technological advances made by us will be critical to sustain market acceptance of our products. Therefore, we believe that the protection of our intellectual property rights is and will continue to be important to the success of our business. We rely on a combination of patent, copyright, trademark and trade secret laws and restrictions on disclosure to protect our intellectual property rights. We also enter into confidentiality or license agreements with our employees, consultants, intellectual property providers and business partners, and control access to and distribution of our documentation and other proprietary information. Despite these efforts, unauthorized parties may attempt to copy or otherwise obtain and use our proprietary technology. Monitoring unauthorized use of our technology is difficult, and we cannot be certain that the steps we have taken will prevent unauthorized use of our technology, particularly in foreign countries where the laws may not protect our proprietary rights as fully as in the United States. We cannot be certain that patents will be issued as a result of our pending applications nor can we be certain that any issued patents would protect or benefit us or give us adequate protection from competing products. For example, issued patents may be circumvented or challenged and declared invalid or unenforceable. We also cannot be certain that others will not develop effective competing technologies on their own. Our products incorporate technology licensed from third parties We incorporate technology (including software) licensed from third parties in our products. We could be subjected to claims of infringement regardless of our lack of involvement in the development of the licensed technology. Although a third-party licensor is typically obligated to indemnify us if the licensed technology infringes on another party’s intellectual property rights, such indemnification is typically limited in amount and may be worthless if the licensor becomes insolvent. See Significant litigation over intellectual property in our industry may cause us to become involved in costly and lengthy litigation which could seriously harm our business. Furthermore, any failure of third-party technology to perform properly would adversely affect sales of our products incorporating such technology. 24 Table of Contents Liquidity and Credit Risks We are subject to credit risks related to our accounts receivable We do not generally obtain letters of credit or other security for payment from customers, distributors or contract manufacturers. Accordingly, we are not protected against accounts receivable default or bankruptcy by these entities. Our ten largest customers or distributors represent a substantial majority of our accounts receivable. If any such customer or distributor, or a material portion of our smaller customers or distributors, were to become insolvent or otherwise not satisfy their obligations to us, we could be materially harmed. Our convertible senior notes could adversely affect our operating results and financial condition         Upon conversion, our convertible senior notes may be settled inOn January 2, 2022, we irrevocably elected cash shares of our common stock or a combination of cash and shares, at our election. We intend to settlesettlement for the principal amount of the notes in cash.2025 Notes. If we do not have adequate cash available we may not be able to settle the principal amount in cash. In such case,of the 2025 Notes, we willcould seek to raise additional funds through debt or equity capital. However, additional funds may not be requiredavailable on terms acceptable to us, or at all. We intend to settle any excess value in shares in the principal amount in stock, which wouldevent of a conversion. Shares issued to settle any excess value may result in immediate, and likelypotentially material, dilution to the ownership interests of our existing stockholders. Any sales in the public market of our common stock issuable upon such conversion could adversely affect prevailing market prices of our common stock.         Following any conclusion that we no longer have the ability to settle the convertible senior notes in cash, we will be required on a going forward basis to change our accounting policy for earnings per share from the treasury stock method to the if-converted method. Earnings per share may be lower under the if-converted method as compared to the treasury stock method. The principal balance of the convertible senior notes was separated into liability and equity components, which were recorded initially at fair value. The excess of the principal amount of the liability component over its carrying amount represents the debt discount, which iswas accreted to interest expense over the term of the notes using the effective interest method. Accordingly, we will reporthave reported higher interest expense because of the recognition of both the debt discount amortization and the notes'notes’ coupon interest. With our adoption of Financial Accounting Standards Board (FASB) Accounting Standards Update (ASU) No. 2020-06, Debt—Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging— Contracts in Entity’s Own Equity (Subtopic 815-40), in fiscal 2022, the principal balance of the 2025 Notes is no longer separated between liability and equity components. This resulted in an increase to the carrying value of our convertible debt, representing the unamortized debt discount, with an offsetting reduction in stockholders’ equity. Our debt could adversely affect our operations and financial condition We believe we have the ability to service our debt, but our ability to make the required payments thereunder when due depends upon our future performance, which will be subject to general economic conditions, industry cycles and other factors affecting our operations, including risk factors described herein, such as the potential implications of the COVID-19 pandemic, many of which are beyond our control. Our credit facility also contains covenants, including financial covenants. If we breach any of the covenants under our credit facility and do not obtain appropriate waivers, then, subject to any applicable cure periods, our outstanding indebtedness thereunder could be declared immediately due and payable. We could seek to raise additional debt or equity capital in the future, but additional capital may not be available on terms acceptable to us, or at all We believe that our existing cash, cash equivalents, investments and credit under our credit facility will be sufficient to meet our working capital needs, capital expenditures, investment requirements and Table of Contents commitments for at least the next 12 months. However, our ability to borrow further under the credit facility is dependent upon our ability to satisfy various conditions, covenants and representations. It is possible that we may need to raise additional funds to finance our activities or to facilitate acquisitions of other businesses, products, intellectual property or technologies. We believe we could raise these funds, if needed, by selling equity or debt securities to the public or to selected investors. In addition, even though we may not need additional funds, we may still elect to sell additional equity or debt securities or obtain credit facilities for other reasons. However, we may not be able to obtain additional funds on favorable terms, or at all.all, particularly during financial market instability related to the COVID-19 pandemic. If we decide to raise additional funds by issuing equity or convertible debt securities, the ownership percentages of existing shareholders would be reduced. 25 Table of Contents Stock and Governance Risks We have limited resources compared to someOur stock price may be volatile The market price of our currentcommon stock has been volatile in the past and potential competitors and we may not be able to compete effectively and increasevolatile in the future. The market share         Someprice of our current and potential competitors have longer operating histories, significantly greater resources and name recognition and a larger base of customers than we have. As a result, these competitors may have greater credibility with our existing and potential customers. They alsocommon stock may be able to adopt more aggressive pricing policies and devote greater resourcessignificantly affected by the following factors: ● Actual or anticipated fluctuations in our operating results; ● Changes in financial estimates by securities analysts or our failure to perform in line with such estimates; ● Changes in market valuations of other technology companies, particularly semiconductor companies; ● Announcements by us or our competitors of significant technical innovations, acquisitions, strategic partnerships, joint ventures or capital commitments; ● Introduction of technologies or product enhancements that reduce the need for our products; ● The loss of, or decrease in sales to, one or more key customers; ● A large sale of stock by a significant shareholder; ● Dilution from the issuance of our stock in connection with acquisitions; ● The addition or removal of our stock to or from a stock index fund; ● Departures of key personnel; ● The required expensing of stock awards; and ● Reporting revenue under ASC Topic 606, Revenue from Contracts with Customers. The stock market has experienced extreme volatility that often has been unrelated to the development, promotion and saleperformance of their products than we canparticular companies. These market fluctuations may cause our stock price to ours. In addition, somefall regardless of our current and potential competitors have already established supplier or joint development relationships with the decision makers at our current or potential customers. These competitors may be able to leverage their existing relationships to discourage their customers from purchasing products from us or persuade them to replace our products with their products. Our competitors may also offer bundled solutions offering a more complete product despite the technical merits or advantages of our products. These competitors may elect not to support our products which could complicate our sales efforts. These and other competitive pressures may prevent us from competing successfully against current or future competitors, and may materially harm our business. Competition could decrease our prices, reduce our sales, lower our gross margins and/or decrease our market share.performance. Provisions in our charter documents and Delaware law could prevent, delay or impede a change in control of us and may reduce the market price of our common stock Provisions of our certificate of incorporation and bylaws could have the effect of discouraging, delaying or preventing a merger or acquisition that a stockholder may consider favorable. For example, our certificate of incorporation and bylaws provide for: • The division of our Board of Directors into three classes to be elected on a staggered basis, one class each year; • The ability of our Board of Directors to issue shares of our preferred stock in one or more series without further authorization of our stockholders; • A prohibition on stockholder action by written consent; • Elimination of the right of stockholders to call a special meeting of stockholders; • A requirement that stockholders provide advance notice of any stockholder nominations of directors or any proposal of new business to be considered at any meeting of stockholders; and • A requirement that a supermajority vote be obtained to amend or repeal certain provisions of our certificate of incorporation. ● The division of our Board of Directors into three classes to be elected on a staggered basis, one class each year; ● The ability of our Board of Directors to issue shares of our preferred stock in one or more series without further authorization of our stockholders; ● A prohibition on stockholder action by written consent; ● Elimination of the right of stockholders to call a special meeting of stockholders; ● A requirement that stockholders provide advance notice of any stockholder nominations of directors or any proposal of new business to be considered at any meeting of stockholders; and ● A requirement that a supermajority vote be obtained to amend or repeal certain provisions of our certificate of incorporation. We also are subject to the anti-takeover laws of Delaware which may discourage, delay or prevent someone from acquiring or merging with us, which may adversely affect the market price of our common stock. ​ 26 Table of Contents Risks related to our industry We are subject to the cyclical nature of the semiconductor industry, which has been subject to significant fluctuations         The semiconductor industry is highly cyclical and is characterized by constant and rapid technological change, rapid product obsolescence and price erosion, evolving standards, short product life cycles and wide fluctuations in product supply and demand. The industry has experienced significant fluctuations, often connected with, or in anticipation of, maturing product cycles and new product introductions of both semiconductor companies' and their customers' products and fluctuations in general economic conditions. Deteriorating general worldwide economic conditions, including reduced economic activity, concerns about credit and inflation, increased energy costs, decreased consumer confidence, reduced corporate profits, decreased spending and similar adverse business conditions, would make it very difficult for our customers, our vendors, and us to accurately forecast and plan future business activities and could cause U.S. and foreign businesses to slow spending on our products. We cannot predict the timing, strength, or duration of any economic slowdown or economic recovery. If the economy or markets in which we operate deteriorate, our business, financial condition, and results of operations would likely be materially and adversely affected.         Downturns have been characterized by diminished product demand, production overcapacity, high inventory levels and accelerated erosion of average selling prices. In the recent past, we believe the semiconductor industry suffered a downturn due in large part to adverse conditions in the global credit and financial markets, including diminished liquidity and credit availability, declines in consumer confidence, declines in economic growth, increased unemployment rates and general uncertainty regarding the economy. Such downturns may have a material adverse effect on our business and operating results.         Upturns have been characterized by increased product demand and production capacity constraints created by increased competition for access to third-party foundry, assembly and test capacity. We are dependent on the availability of such capacity to manufacture, assemble and test our products. None of our third-party foundry, assembly or test subcontractors have provided assurances that adequate capacity will be available to us. The average selling prices of our products could decrease rapidly which may negatively impact our revenues and gross margins         We may experience substantial period-to-period fluctuations in future operating results due to the erosion of our average selling prices. We have reduced the average unit price of our products in anticipation of or in response to competitive pricing pressures, new product introductions by us or our competitors and other factors. If we are unable to offset any such reductions in our average selling prices by increasing our sales volumes, increasing our sales content per application or reducing production costs, our gross margins and revenues will suffer. To maintain our gross margin percentage, we will need to develop and introduce new products and product enhancements on a timely basis and continually reduce our costs. Our failure to do so could cause our revenues and gross margin percentage to decline. Competition within the numerous markets we target may reduce sales of our products and reduce our market share         The markets for semiconductors in general, and for mixed-signal products in particular, are intensely competitive. We expect that the market for our products will continually evolve and will be subject to rapid technological change. In addition, as we target and supply products to numerous markets and applications, we face competition from a relatively large number of competitors. We compete with Analog Devices, Broadcom, Cypress, IDT, Infineon, Maxim Integrated Products, Table of Contents MaxLinear, Microchip, Microsemi, Nordic Semiconductor, NXP Semiconductors, Qualcomm, Renesas, STMicroelectronics, Synaptics, Texas Instruments and others. We expect to face competition in the future from our current competitors, other manufacturers and designers of semiconductors, and start-up semiconductor design companies. As the markets for communications products grow, we also may face competition from traditional communications device companies. These companies may enter the mixed-signal semiconductor market by introducing their own products or by entering into strategic relationships with or acquiring other existing providers of semiconductor products. In addition, large companies may restructure their operations to create separate companies or may acquire new businesses that are focused on providing the types of products we produce or acquire our customers. We may be the victim of business disruptions and security breaches, including cyber-attacks, which could lead to liability or could damage our reputation and financial results         Information technology system and/or network disruptions, regardless of the cause, but including acts of sabotage, error, or other actions, could harm the company's operations. Failure to effectively prevent, detect, and recover from security breaches, including cyber-attacks, could result in the misuse of company assets, disruption to the company, diversion of management resources, regulatory inquiries, legal claims or proceedings, reputational damage, loss of sales and other costs to the company. We routinely face attacks that attempt to breach our security protocols, gain access to or disrupt our computerized systems or steal proprietary company, customer, partner or employee information. These attacks are sometimes successful. These attacks may be due to security breaches, employee error, theft, malfeasance, phishing schemes, ransomware, faulty password or data security management, or other irregularities. The theft, loss, destruction, unavailability or misuse of personal or business data collected, used, stored or transferred by us to run our business could result in increased security costs or costs related to defending legal claims. Industrial espionage, theft or loss of our intellectual property data could lead to counterfeit products or harm the competitive position of our products and services. Costs to implement, test and maintain measures to promote compliance with applicable privacy and data security laws as well as to protect the overall security of our system could be significant. Attempted or successful attacks against our products and services could damage our reputation with customers or users and reduce demand for our products and services. Changes in the Privacy and Data Security/Protection Laws Could Have an Adverse Effect on our Operations         Federal, state and international privacy-related or data protection laws and regulations could have an adverse effect on our operations. Complying with these laws and the possibility of proceedings against us by governmental entities or others in relation to these laws could increase operational costs. In May 2018, the European Union's General Data Protection Regulation ("GDPR") goes into effect, replacing the EU's 1995 Data Protection Directive. The costs of compliance with the GDPR and the potential for fines and penalties in the event of a breach of the GDPR may have an adverse effect on our operations. We may be subject to information technology failures that could damage our reputation, business operations and financial condition         We rely on information technology for the effective operation of our business. Our systems are subject to damage or interruption from a number of potential sources, including natural disasters, accidents, power disruptions, telecommunications failures, acts of terrorism or war, computer viruses, theft, physical or electronic break-ins, cyber-attacks, sabotage, vandalism, or similar events or disruptions. Our security measures may not detect or prevent such security breaches. Any such compromise of our information security could result in the theft or unauthorized publication or use of our confidential business or proprietary information, result in the unauthorized release of customer, supplier or employee data, result in a violation of privacy or other laws, expose us to a risk of litigation Table of Contents or damage our reputation. In addition, our inability to use or access information systems at critical points in time could unfavorably impact the timely and efficient operation of our business, which could negatively affect our business and operating results.         Third parties with which we conduct business, such as foundries, assembly and test contractors, distributors and customers, have access to certain portions of our sensitive data. In the event that these third parties do not properly safeguard our data that they hold, security breaches could result and negatively impact our reputation, business operations and financial results. Our products must conform to industry standards and technology in order to be accepted by end users in our markets         Generally, our products comprise only a part of a device. All components of such devices must uniformly comply with industry standards in order to operate efficiently together. We depend on companies that provide other components of the devices to support prevailing industry standards. Many of these companies are significantly larger and more influential in affecting industry standards than we are. Some industry standards may not be widely adopted or implemented uniformly, and competing standards may emerge that may be preferred by our customers or end users. If larger companies do not support the same industry standards that we do, or if competing standards emerge, market acceptance of our products could be adversely affected which would harm our business.         Products for certain applications are based on industry standards that are continually evolving. Our ability to compete in the future will depend on our ability to identify and ensure compliance with these evolving industry standards. The emergence of new industry standards could render our products incompatible with products developed by other suppliers. As a result, we could be required to invest significant time and effort and to incur significant expense to redesign our products to ensure compliance with relevant standards. If our products are not in compliance with prevailing industry standards for a significant period of time, we could miss opportunities to achieve crucial design wins.         Our pursuit of necessary technological advances may require substantial time and expense. We may not be successful in developing or using new technologies or in developing new products or product enhancements that achieve market acceptance. If our products fail to achieve market acceptance, our growth prospects, operating results and competitive position could be adversely affected. Customer demands and new regulations related to conflict-free minerals may adversely affect us         The Dodd-Frank Wall Street Reform and Consumer Protection Act imposes new disclosure requirements regarding the use of "conflict" minerals mined from the Democratic Republic of Congo and adjoining countries in products, whether or not these products are manufactured by third parties. These new requirements could affect the pricing, sourcing and availability of minerals used in the manufacture of semiconductor devices (including our products). There will be additional costs associated with complying with the disclosure requirements, such as costs related to determining the source of any conflict minerals used in our products. Our supply chain is complex and we may be unable to verify the origins for all metals used in our products. We may also encounter challenges with our customers and stockholders if we are unable to certify that our products are conflict free. Item 1B.    Unresolved Staff Comments None. ​ Item 2.    Properties Our corporate headquarters, housing engineering, sales and marketing, administration and test operations, is located in Austin, Texas. Our headquarters facilities consist of two buildings, which we Table of Contents own, that are located on land which we have leased through 2099. The buildings contain approximately 441,000 square feet of floor space, of which approximately 173,00089,000 square feet were leased to other tenants. In addition to these properties, we lease smaller facilities in various locations in the United States, Australia, Brazil, Canada, China, Denmark, Finland, France, Germany, Hungary, India, Italy, Japan, Norway, Singapore, South Korea, Taiwan and the United Kingdom for engineering, sales and marketing, administrative and manufacturing support activities. We believe that these facilities are suitable and adequate to meet our current operating needs. Item 3.    Legal Proceedings Patent Litigation         On January 28, 2014, Cresta Technology Corporation ("Cresta Technology"), a Delaware corporation, filed a lawsuit against us (among others) in the United States District Court in the District of Delaware, alleging infringement of three United States Patents (the "Cresta Patents"). Cresta Technology declared bankruptcy in 2016. One of its creditors, DBD Credit Funding LLC ("DBD") and/or CF Crespe LLC (the "Cresta Successors") assumed ownership of the Cresta Patents and has substituted in for Cresta Technology in related proceedings.         The Delaware proceedings are currently stayed. In 2014 and 2015, we challenged the validity of two sets of claims in the Cresta Patents at the Patent Trial and Appeal Board (PTAB) of the United States Patent and Trademark Office (USPTO). In each respective proceeding, the PTAB found the reviewed claims to be invalid. The Federal Circuit Court of Appeals affirmed both determinations.         On July 16, 2014, we filed a lawsuit against Cresta Technology in the United States District Court in the Northern District of California alleging infringement of six United States Patents. A motion to substitute the Cresta Successors as defendants in lieu of Cresta Technology is pending.         We intend to continue to vigorously defend the Delaware proceeding and to continue to pursue its claims against the Cresta Successors and their patents. At this time, we cannot predict the outcome of these matters or the resulting financial impact to it, if any. Other         We are involved in various otherInformation regarding legal proceedings that have arisenis provided in the normal course of business. While the ultimate results of these matters cannot be predicted with certainty, we do not expect themNote 13, Commitments and Contingencies, to have a material adverse effect on ourthe Consolidated Financial Statements. Such information is incorporated by reference herein. ​ Item 4.    Mine Safety Disclosures Not applicable. ​ 27 Table of Contents Part II Item 5.    Market for Registrant'sRegistrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities Market Information and Holders Our registration statement (Registration No. 333-94853) under the Securities Act of 1933, as amended, relating to our initial public offering of our common stock became effective on March 23, 2000. Our common stock is quoted on the NASDAQ National Market (NASDAQ) under the symbol "SLAB"“SLAB”. The table below shows the high and low per-share sales prices of our common stock for the periods indicated, as reported by NASDAQ. As of January 22, 2018,24, 2023, there were 7260 holders of record of our common stock.     High   Low   Fiscal Year 2016               First Quarter   $ 48.00   $ 36.56   Second Quarter     51.00     42.63   Third Quarter     59.35     45.94   Fourth Quarter     68.95     55.97   Fiscal Year 2017               First Quarter   $ 75.60   $ 63.15   Second Quarter     78.45     66.85   Third Quarter     81.95     66.35   Fourth Quarter     96.93     80.17   Dividend Policy We have never declared or paid any cash dividends on our common stock and we currently do not intend to pay cash dividends in the foreseeable future.dividends. We currently expect to retain any future earnings to fund the operation and expansion of our business. Table of Contents Stock Performance Graph The graph depicted below shows a comparison of cumulative total stockholder returns for an investment in Silicon Laboratories Inc. common stock, the NASDAQ Composite Index and the PHLX Semiconductor Index. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Company / Index      12/30/17      ​ 12/29/18      ​ 12/28/19      ​ 01/02/21      ​ 01/01/22      ​ 12/31/22 Silicon Laboratories Inc. ​ $ 100.00 ​ $ 88.90 ​ $ 131.96 ​ $ 144.21 ​ $ 233.77 ​ $ 153.65 NASDAQ Composite Index ​ $ 100.00 ​ $ 96.41 ​ $ 133.30 ​ $ 192.47 ​ $ 235.15 ​ $ 158.65 PHLX Semiconductor Index ​ $ 100.00 ​ $ 93.32 ​ $ 154.13 ​ $ 235.71 ​ $ 336.71 ​ $ 219.26 (1) The graph assumes that $100 was invested in our common stock and in each index at the market close on December 30, 2017, and that all dividends were reinvested. No cash dividends have been declared on our common stock. (2) Stockholder returns over the indicated period should not be considered indicative of future stockholder returns. 28 Company / Index   12/29/12   12/28/13   01/03/15   01/02/16   12/31/16   12/30/17   Silicon Laboratories Inc.    $ 100.00   $ 102.07   $ 114.51   $ 116.99   $ 156.66   $ 212.82   NASDAQ Composite   $ 100.00   $ 142.22   $ 163.70   $ 175.41   $ 190.97   $ 247.56   PHLX Semiconductor Index   $ 100.00   $ 143.17   $ 188.75   $ 185.79   $ 258.84   $ 363.78   Table of Contents (1) The graph assumes that $100 was invested in our common stock and in each index at the market close on December 29, 2012, and that all dividends were reinvested. No cash dividends have been declared on our common stock. (2) Stockholder returns over the indicated period should not be considered indicative of future stockholder returns. Issuer Purchases of Equity Securities The following table summarizes repurchases of our common stock during the three months ended December 30, 201731, 2022 (in thousands, except per share amounts)data): Period   Total Number of Shares Purchased   Average Price Paid per Share   Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs   Approximate Dollar Value of Shares that May Yet Be Purchased Under the Plans or Programs   October 1, 2017 - October 28, 2017     —   $ —     —   $ 100,000   October 29, 2017 - November 25, 2017     —   $ —     —   $ 100,000   November 26, 2017 - December 30, 2017     —   $ —     —   $ 100,000   ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total     —   $ —     —         Table of Contents​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​      ​      ​ ​      Total Number of ​ ​ Approximate Dollar ​ ​ Total ​ ​ ​ ​ Shares Purchased as ​ ​ Value of Shares that ​ ​ Number of ​ ​ Average Price ​ Part of Publicly ​ ​ May Yet Be ​ ​ Shares ​ ​ Paid per ​ Announced Plans ​ ​ Purchased Under the Period      Purchased      ​ Share      or Programs      ​ Plans or Programs October 2, 2022 – October 29, 2022   830   $ 120.26   830   $ 312,873 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ October 30, 2022 – November 26, 2022   480   $ 123.21   480   $ 253,650 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ November 27, 2022 – December 31, 2022   297   $ 137.07   297   $ 212,977 Total   1,607   $ 124.25   1,607   ​ ​ ​         In January 2017, the Board of Directors authorized aOur share repurchase program to repurchaseauthorizes repurchases up to $100$500 million of our common stock through December 2017. In October 2017, the Board of Directors authorized a2023. The program to repurchase up to $100 million of our common stock from January 2018 through December 2018. The programs allowallows for repurchases to be made in the open market or in private transactions, including structured or accelerated transactions, subject to applicable legal requirements and market conditions. ​ Item 6.    Selected Financial Data [Reserved]         Please read this selected consolidated financial data in conjunction with "Management's​ ​ ​ ​ 29 Table of Contents Item 7.    Management’s Discussion and Analysis of Financial Condition and Results of Operations" our Consolidated Financial Statements and the notes to those statements included in this Form 10-K.     Fiscal Year       2017   2016   2015   2014   2013       (in thousands, except per share data)   Consolidated Statements of Income Data                                 Revenues   $ 768,867   $ 697,626   $ 644,826   $ 620,704   $ 580,087   Operating income   $ 84,974   $ 66,277   $ 32,234   $ 51,421   $ 64,310   Net income   $ 47,092   $ 61,494   $ 29,586   $ 38,021   $ 49,819   Earnings per share:                                 Basic   $ 1.11   $ 1.47   $ 0.70   $ 0.88   $ 1.17   Diluted   $ 1.09   $ 1.45   $ 0.69   $ 0.87   $ 1.14   Consolidated Balance Sheet Data                                 Cash, cash equivalents and investments (1)   $ 769,704   $ 300,263   $ 250,112   $ 342,614   $ 286,025   Working capital     785,317     351,156     280,819     365,223     350,170   Total assets     1,535,082     1,081,844     1,011,463     1,042,561     991,150   Long-term obligations     419,741     115,191     108,028     121,191     143,441   Total stockholders' equity     953,016     826,958     761,114     758,056     738,562   (1) Reflects repurchases of $0, $41 million, $71 million, $72 million and $26 million of our common stock in fiscal 2017, 2016, 2015, 2014 and 2013, respectively. Includes $6 million, $5 million, $7 million, $7 million and $11 million of long-term auction-rate securities investments in fiscal 2017, 2016, 2015, 2014 and 2013, respectively. Table of Contents Item 7.    Management's Discussion and Analysis of Financial Condition and Results of Operations The following discussion and analysis of financial condition and results of operations should be read in conjunction with the Consolidated Financial Statements and related notes thereto included elsewhere in this report. This discussion contains forward-looking statements. Please see the "Cautionary Statement"“Cautionary Statement” and "Risk Factors"“Risk Factors” above for discussions of the uncertainties, risks and assumptions associated with these statements. Our fiscal year-end financial reporting periods are a 52-or52- or 53-week fiscal year that ends on the Saturday closest to December 31. Fiscal 2017, 20162022 and 2015 were 52-week years2021 had 52 weeks. Fiscal 2020 had 53 weeks with the extra week occurring in the first quarter of the year. Fiscal 2022, 2021 and 2020 ended on December 30, 2017, December 31, 20162022, January 1, 2022 and January 2, 2016,2021, respectively. OverviewImpact of COVID-19 The COVID-19 pandemic has impacted the global economy, disrupting our operations, global supply chains and the operations of our customers. We implemented a response plan and continued operations while largely transitioning our global workforce to a remote work model. We have reopened offices in all of our locations, subject to local regulations. The third parties that perform our semiconductor manufacturing, assembly, packaging and testing have generally remained operational. The extent of the impact of the COVID-19 pandemic on our operational and financial performance will depend on future developments, including the duration, severity and spread of the pandemic, related restrictions on travel and transportation and other actions that may be taken by governmental authorities, the impact to the business of our suppliers or customers, and other items identified under “Risk Factors” above, all of which are uncertain and cannot be predicted. An extended period of global supply chain and economic disruption could materially affect our business, results of operations, access to sources of liquidity and financial condition. Overview We are a leading provider of silicon, software and solutionsleader in secure, intelligent wireless technology for a smarter, more connected world. Our award-winning technologies are shapingintegrated hardware and software platform, intuitive development tools, industry leading ecosystem and robust support enable customers in building advanced industrial, commercial, home and life applications. We make it easy for developers to solve complex wireless challenges throughout the futureproduct lifecycle and get to market quickly with innovative solutions that transform industries, grow economies and improve lives. We provide analog-intensive, mixed-signal solutions for use in a variety of electronic products in a broad range of applications for the Internet of Things (IoT), Internet infrastructure, including connected home and security, industrial automation and control, smart metering, smart lighting, commercial building automation, consumer electronics, asset tracking and automotive markets. Our world-class engineering team createsmedical instrumentation. We group our products focusedas Industrial & Commercial or Home & Life based on performance, energy savings, connectivity and simplicity. Our primary semiconductor products are mixed-signal integrated circuits (ICs), which are electronic components that convert real-world analog signals, such as sound and radio waves, into digital signals that electronic products can process.the target markets they address. As a fabless semiconductor company, we rely on third-party semiconductor fabricators in Asia, and to a lesser extent the United States and Europe, to manufacture the silicon wafers that reflect our IC designs. Each wafer contains numerous die, which are cut from the wafer to create a chip for an IC. We rely on third parties in Asia to assemble, package, and, in most cases, test these devices and ship these units to our customers. Testing performed by such third parties facilitates faster delivery of products to our customers (particularly those located in Asia), shorter production cycle times, lower inventory requirements, lower costs and increased flexibility of test capacity.         Our expertise in analog-intensive, high-performance, mixed-signal ICs and software enables us to develop highly differentiated solutions that address multiple markets. We group our products into the following categories: • Internet of Things products, which include our microcontroller (MCU), wireless and sensor products; • Broadcast products, which include our broadcast consumer and automotive products; • Infrastructure products, which include our timing products (clocks and oscillators), and isolation devices; and • Access products, which include our Voice over IP (VoIP) products, embedded modems and Power over Ethernet (PoE) devices. Current Period Highlights         Revenues increased $71.2 million in fiscal 2017 compared to fiscal 2016, primarily due to increased revenues from our IoT and Infrastructure products offset by decreased revenues from our Access and Broadcast products. Gross margin increased $32.7 million during the same period due primarily to increased product sales. Gross margin as a percent of revenues decreased to 59.1% in fiscal 2017 compared to 60.4% in fiscal 2016 primarily due to variations in product mix. Operating expenses increased $14.0 million in fiscal 2017 compared to fiscal 2016 due primarily to increased personnel-related expenses, offset by decreased new product introduction costs and legal fees.         We ended fiscal 2017 with $764.0 million in cash, cash equivalents and short-term investments. Net cash provided by operating activities was $189.5 million during fiscal 2017. Accounts receivable was Table of Contents $71.4 million at December 30, 2017, representing 32 days sales outstanding (DSO). Inventory was $73.1 million at December 30, 2017, representing 81 days of inventory (DOI). In fiscal 2017, we completed a private offering of $400 million principal amount convertible senior notes, and used $72.5 million of the proceeds to pay off the remaining balance of our Amended Credit Agreement.         Through acquisitions and internal development efforts, we have continued to diversify our product portfolio and introduce new products and solutions with added functionality and further integration. On January 20, 2017, we acquired Zentri, Inc., an innovator in low-power, cloud-connected Wi-Fi technologies for the IoT. On December 7, 2017, we entered into an agreement to either acquire Sigma Designs, Inc. or its Z-Wave business. On January 23, 2018, Sigma Designs announced that due to the closing conditions for the acquisition of the entirety of Sigma Designs not being satisfied, the parties would move forward with the sale of the Z-Wave business to us in an asset sale, subject to approval by Sigma Designs' shareholders. Sigma Designs is a provider of solutions for the connected home including Z-Wave, an IoT technology for smart home solutions. See Note 8,Acquisitions, to the Consolidated Financial Statements for additional information.         In fiscal 2017, we introduced I2C-programmable crystal oscillators (XOs) delivering excellent jitter performance and frequency flexibility for 100/200/400G applications; optical biometric sensors providing advanced heart rate monitoring (HRM) along with electrocardiogram (ECG) capabilities for a wide range of wearable fitness and wellness products; new dynamic multiprotocol software for our Wireless Gecko system-on-chip (SoC) and module portfolio, enabling simultaneous operation of Zigbee and Bluetooth low energy (LE) on a single SoC; a comprehensive reference design to simplify the development of USB Type-C™ rechargeable lithium ion battery packs; high-performance, multi-channel jitter attenuating wireless clocks supporting 4G/LTE and Ethernet; high-performance clock generators offering a highly integrated timing solution for 10/25/100G applications; power-efficient Hall-effect magnetic sensors offering flexible I2C configuration and built-in tamper detection and temperature sensing; a scalable, flexible and cost-effective car radio solution for the global automotive infotainment market; new EFM32 Giant Gecko MCUs offering advanced capabilities and large memory options scaling up to 2 MB flash and 512 KB RAM; a wireless software stack, development tools and a mobile app supporting the new Bluetooth mesh specification; the Ultra Series™ family of crystal oscillators (XOs) delivering ultra-low jitter performance; EFR32xG13 Wireless Gecko SoCs supporting full Bluetooth 5 connectivity and more memory options; a USB-to-I2S bridge chip that provides a simple, turnkey solution for transferring digital audio data; new EFR32 Wireless Gecko SoCs supporting a broad range of multiprotocol, multiband use cases; EFM32 Gecko MCUs offering new security features, large memory options, higher peripheral integration and ultra-low power consumption; and an enhanced Micrium® real-time operating system (RTOS) and new Platform Builder software to accelerate embedded design. We plan to continue to introduce products that increase the content we provide for existing applications, thereby enabling us to serve markets we do not currently address and expand our total available market opportunity.         During fiscal 2017, 2016 and 2015, we had no end customer that represented more than 10% of our revenues. In addition to direct sales to customers, some of our end customers purchase products indirectly from us through distributors and contract manufacturers. An end customer purchasing through a contract manufacturer typically instructs such contract manufacturer to obtain our products and incorporate such products with other components for sale by such contract manufacturer to the end customer. Although we actually sell the products to, and are paid by, the distributors and contract manufacturers, we refer to such end customer as our customer. Three of our distributors who sell to our customers, Edom Technology, Avnet and Arrow Electronics, each represented 19%, 14% and 12% of our revenues during fiscal 2017, and 17%, 13% and 11% of our revenues during fiscal 2016, respectively. Edom and Avnet represented 20% and 12% of our revenues during fiscal 2015, respectively. There were no contract manufacturers that accounted for more than 10% of our revenues in fiscal 2017, 2016 or 2015. Table of Contents         The percentage of our revenues derived from outside of the United States was 85% in fiscal 2017, 86% in fiscal 2016 and 85% in fiscal 2015. All of our revenues to date have been denominated in U.S. dollars. We believe that a majority of our revenues will continue to be derived from customers outside of the United States. The sales cycle for our ICs can be as long as 12 months or more. An additional three to six months or more are usually required before a customer ships a significant volume of devices that incorporate our ICs. Due to this lengthy sales cycle, we typically experience a significant delay between incurring research and development and selling, general and administrative expenses, and the corresponding sales. Consequently, if sales in any quarter do not occur when expected, expenses and inventory levels could be disproportionately high, and our operating results for that quarter and, potentially, future quarters would be adversely affected. Moreover, the amount of time between initial research and development and commercialization of a product, if ever, can be substantially longer than the sales cycle for the product. Accordingly, if we incur substantial research and development costs without developing a commercially successful product, our operating results, as well as our growth prospects, could be adversely affected. Because manysome of our ICs are designed for use in consumer products, such as televisions, set-top boxes, radios and wearables, we expect that the demand for our products will be typically subject to some degree of seasonal demand. However, rapid changes in our markets and across our product areas make it difficult for us to accurately estimate the impact of seasonal factors on our business. 30 Table of Contents Discontinued Operations On July 26, 2021, we sold our infrastructure and automotive business to Skyworks Solutions, Inc. for $2.75 billion in cash. The prior year comparable period results of operations of the sold component have been presented in the accompanying Consolidated Financial Statements as discontinued operations and, therefore, are excluded from the following discussion of the results of our continuing operations. Current Period Highlights of Continuing Operations Revenues increased $303.2 million in fiscal 2022 compared to fiscal 2021 due to increased revenues from both our Industrial & Commercial products and Home & Life products. Gross margin increased to 62.7% in fiscal 2022 compared to 59.0% in fiscal 2021 primarily due to increases in the price of our products and variations in product mix. Operating expenses increased $65.1 million in fiscal 2022 compared to fiscal 2021 due primarily to increased personnel-related expenses, outside services, new product introduction costs, depreciation expense, and sales commissions offset in part by a decrease in the amortization of intangible assets. Operating income (loss) in fiscal 2022 was $119.3 million compared to $(32.8) million in fiscal 2021. We ended fiscal 2022 with $1.2 billion in cash, cash equivalents and short-term investments. Net cash provided by operating activities was $141.3 million during fiscal 2022. Accounts receivable were $71.4 million at December 31, 2022, representing 25 days sales outstanding (DSO). Inventory was $100.4 million at December 31, 2022, representing 90 days of inventory (DOI). In fiscal 2022, we acquired 6.9 million shares of our common stock for $887.6 million. Through acquisitions and internal development efforts, we have continued to diversify our product portfolio and introduce new products and solutions with added functionality and integration. In fiscal 2022, we introduced a portfolio of Matter development solutions providing support for Matter over Wi-Fi, Matter over Thread, Bluetooth Low Energy (LE) commissioning, and Matter bridges to Zigbee and Z-Wave; an end-to-end development platform with complete connectivity support for Amazon Sidewalk; a new flagship SoC and power amplifier for Wi-SUN®, the FG25 SoC and EFF01 Front End Module designed to provide a sub-gigahertz transmission range of up to 3 kilometers in dense urban environments with no data loss; our first Wi-Fi 6 and Bluetooth LE SoC family ideal for battery-powered or energy-efficient IoT devices with always-on cloud connectivity; a Bluetooth Location Services solution using accurate, low-power Bluetooth devices to simplify Angle of Arrival (AoA) and Angle of Departure (AoD) location services; and a family of 2.4 GHz wireless SoCs for Bluetooth and multi-protocol operations with a built-in AI and Machine Learning (ML) accelerator, improving performance for AI and ML applications on battery-powered edge devices. We plan to continue introducing products that increase the content we provide for existing applications, thereby enabling us to serve markets we do not currently address and expand our total available market opportunity. During fiscal 2022, 2021 and 2020, we had no customer that represented more than 10% of our revenues. In addition to direct sales to customers, some of our end customers purchase products indirectly from us through distributors and contract manufacturers. An end customer purchasing through a contract manufacturer typically instructs such contract manufacturer to obtain our products and incorporate such products with other components for sale by such contract manufacturer to the end customer. Although we actually sell the products to, and are paid by, the distributors and contract manufacturers, we refer to such end customer as our customer. Two of our distributors who sell to our customers, Arrow Electronics and Edom Technology, represented 33% and 17% during fiscal 2022, respectively. Three of our distributors, Arrow Electronics, Edom Technology and Sekorm, represented 28%, 18% and 12% of our revenues during fiscal 2021, and 28%, 19% and 14% of our revenues during fiscal 2020, respectively. The percentage of our revenues derived from outside of the United States was 83% in fiscal 2022, 86% in fiscal 2021 and 88% in fiscal 2020. All of our revenues to date have been denominated in U.S. dollars. We believe that a majority of our revenues will continue to be derived from customers outside of the United States. Results of Operations The following describes the line items set forth in our Consolidated Statements of Income: Revenues.Revenues are generated predominately by sales of our products. A small portion of our revenues is derived from the sale of patents. Our revenues are subject to variation from period to period due to the volume of shipments made within a period, the mix of products we sell and the prices we charge for our products. 31 Table of Contents Cost of Revenues.Cost of revenues includes the cost of purchasing finished silicon wafers processed by independent foundries; costs associated with assembly, test and shipping of those products; costs of personnel and equipment associated with manufacturing support, logistics and quality assurance; costs of software royalties, other intellectual property license costs and certain acquired intangible assets; and an allocated portion of our occupancy costs. Our gross margin as a percentage of revenue fluctuates depending on product mix, manufacturing yields, inventory valuation adjustments, average selling prices and other factors. Research and Development.Research and development expense consists primarily of personnel-related expenses, including stock-based compensation, as well as new product masks, external consulting and services costs, equipment tooling, equipment depreciation, amortization of intangible assets and an allocated portion of our occupancy costs. Research and development activities include the design of new products, refinement of existing products and design of test methodologies to ensure compliance with required specifications. Selling, General and Administrative.Selling, general and administrative expense consists primarily of personnel-related expenses, including stock-based compensation, as well as an allocated portion of our occupancy costs, sales commissions to independent sales representatives, applications engineering support,amortization of intangible assets, professional fees, legal fees, and promotional and marketing expenses. Interest Income and Other, Net. Interest income and other, net reflects interest earned on our cash, cash equivalents and investment balances, foreign currency remeasurement adjustments, and other non-operating income and expenses. Table of Contents Interest Expense.Interest expense consists of interest on our short and long-term obligations, including our convertible senior notes and credit facility. Interest expense on our convertible senior notes includes contractual interest, amortization of debt issuance costs, and for periods prior to fiscal 2022, amortization of the debt discount and amortization of debt issuance costs.discount. Provision (Benefit) for Income Taxes.Provision (benefit) for income taxes includes both domestic and foreign income taxes at the applicable tax rates adjusted for non-deductible expenses, research and development tax credits and other permanent differences. Equity-method Earnings. Equity-method earnings represents income or loss on our equity-method investment. Income from discontinued operations, net of income taxes. Income from discontinued operations, net of income taxes includes the results of operations of our former infrastructure and automotive business. The following table sets forth our Consolidated Statements of Income data as a percentage of revenues for the periods indicated: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fiscal Year ​ ​      2022      2021      2020   Revenues ​ 100.0 %   100.0 %   100.0 % Cost of revenues ​ 37.3   41.0   42.3 ​ Gross margin ​ 62.7   59.0   57.7 ​ Operating expenses: ​ ​   ​   ​ ​ Research and development ​ 32.5   37.9   46.0 ​ Selling, general and administrative ​ 18.6   25.7   32.7 ​ Operating expenses ​ 51.1   63.6   78.7 ​ Operating income (loss) ​ 11.6   (4.6)   (21.0) ​ Other income (expense): ​ ​   ​   ​ ​ Interest income and other, net ​ 1.4   0.8   1.8 ​ Interest expense ​ (0.6)   (4.3)   (6.7) ​ Income (loss) from continuing operations before income taxes ​ 12.4   (8.1)   (25.9) ​ Provision (benefit) for income taxes ​ 3.8   1.9   (2.9) ​ Equity-method earnings ​ 0.3 ​ 1.9 ​ 0.4 ​ Income (loss) from continuing operations ​ 8.9 ​ (8.1) ​ (22.6) ​ Income from discontinued operations, net of income taxes ​ — ​ 301.8 ​ 25.1 ​ Net income ​ 8.9 % 293.7 %   2.5 % ​ 32 Table of Contents     Fiscal Year       2017   2016   2015   Revenues     100.0 %   100.0 %   100.0 % Cost of revenues     40.9     39.6     40.9   ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Gross margin     59.1     60.4     59.1   Operating expenses:                     Research and development     27.2     28.6     29.2   Selling, general and administrative     20.8     22.3     24.9   ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Operating expenses     48.0     50.9     54.1   ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Operating income     11.1     9.5     5.0   Other income (expense):                     Interest income and other, net     0.8     0.1     0.1   Interest expense     (1.9 )   (0.4 )   (0.4 ) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Income before income taxes     10.0     9.2     4.7   Provision for income taxes     3.9     0.4     0.1   ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Net income     6.1 %   8.8 %   4.6 % ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Comparison of Fiscal 20172022 to Fiscal 20162021 Revenues     Fiscal Year           (in millions)   2017   2016   Change   % Change   Internet of Things   $ 395.0   $ 314.6   $ 80.4     25.6 % Broadcast     153.0     157.7     (4.7 )   (3.0 )% Infrastructure     152.2     147.7     4.5     3.0 % Access     68.7     77.6     (8.9 )   (11.4 )% ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total   $ 768.9   $ 697.6   $ 71.3     10.2 % ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fiscal Year ​ ​ ​ ​ ​   (in millions)      2022      2021      Change      % Change   Industrial & Commercial ​ $ 573.7 ​ $ 377.4 ​ $ 196.3   52.0 % Home & Life ​ ​ 450.4 ​ ​ 343.5 ​ ​ 106.9 ​ 31.1 % ​ ​ $ 1,024.1 ​ $ 720.9 ​ $ 303.2 ​ 42.1 % ​ The changeincrease in revenues in fiscal 20172022 was due primarily to: • Increasedto increased revenues of $80.4$196.3 million forfrom our IoT products, due primarily to increased demand for our wireless products. • Decreased revenues of $4.7 million for Broadcast products, due primarily to decreases in the market for our consumer products offset by increased demand for our automotive products. Table of Contents • Increased revenues of $4.5 million for our Infrastructure products, due primarily to increased demand for our isolation products offset by decreased demand for our timingIndustrial & Commercial products and decreased patent sale revenue of $5.0$106.9 million in fiscal 2016 with no patents sales in fiscal 2017. • Decreased revenues of $8.9 million forfrom our Access products, due primarily to decreased demand for our VoIP products and decreases in the market for suchHome & Life products. Unit volumes of our products increased by 21.0% andwhile average selling prices decreased by 8.5%increased substantially compared to fiscal 2016.2021. The average selling prices of our products may fluctuate significantly from period to period due to changes in product mix, pricing decisions and other factors. In general, as our products become more mature, we expect to experience decreases in average selling prices. We anticipate that newly announced, higher priced, next generation products and product derivatives will offset some of these decreases. Gross MarginProfit     Fiscal Year       (in millions)   2017   2016   Change   Gross margin   $ 454.2   $ 421.5   $ 32.7   Percent of revenue     59.1 %   60.4 %   (1.3 )%         The​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fiscal Year ​ ​ ​   (in millions)      2022      2021      Change   Gross profit ​ $ 642.6 ​ $ 425.4 ​ $ 217.2 ​ Gross margin ​   62.7 %     59.0 %     3.7 % ​ Gross profit increased dollar amount of gross margin in fiscal 20172022 due primarily to increased product sales. The increase in gross profit in fiscal 2022 was due to increases in gross marginprofit for both of $45.0 million for our IoT products and $1.4 million for our Infrastructure products, offset by decreases in gross margin of $7.0 million for our Broadcast products and $6.7 million for our Access products.product groups. Gross margin increased in fiscal 2017 due primarily to increased product sales. Gross margin as a percent of revenues decreased in fiscal 2017 primarily due to increases in the price of our products and variations in product mix. Gross marginIncreased product demand and production capacity constraints have increased the selling price and costs of our products, and has resulted in fiscal 2016 included $5.0 million fromperiod-to-period fluctuations in our gross margin. We expect the sale of patents, which had no associated cost of revenues.prices we pay for inventory to continue to increase in future periods and that this will reduce our gross margins. We may experience declinesvariations in the average selling prices of certain of our products. This createsIncreases in average selling prices may occur during periods of increased demand, but such demand may be short-lived and could be accompanied by higher product costs. Declines in average selling prices create downward pressure on gross margin as a percentage of revenues and may be offset to the extent we are able to: 1)to introduce higher margin new products and gain market share with our products; 2) reduce costs of existing products through improved design; 3) achieve lower production costs from our wafer suppliers and third-party assembly and test subcontractors; 4) achieve lower production costs per unit as a result of improved yields throughout the manufacturing process; or 5) reduce logistics costs. Research and Development     Fiscal Year           (in millions)   2017   2016   Change   % Change   Research and development   $ 209.5   $ 199.7   $ 9.8     4.9 % Percent of revenue     27.2 %   28.6 %             ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fiscal Year ​ ​ ​ ​ ​   (in millions)      2022      2021      Change      % Change   Research and development ​ $ 332.3 ​ $ 273.2 ​ $ 59.1   21.6 % Percent of revenue ​   32.5 %   37.9 %     ​   ​ ​ ​ The increase in research and development expense in fiscal 20172022 was primarily due to increases of $12.6$48.6 million for personnel-related expenses, including costs associated with increased headcount and acquisitions. The increase in research and development expense in fiscal 2017 was offset in part by a decrease of $2.3$2.6 million for new product introduction costs.costs and $2.3 million for depreciation expense. The decrease in research and development expense as a percent of revenues in fiscal 20172022 was due to our increased revenues. We expect that research and development expense will increase in absolute dollars in the first quarter of 2018.2023 compared to the fourth quarter of 2022. 33 Table of Contents Selling, General and Administrative     Fiscal Year           (in millions)   2017   2016   Change   % Change   Selling, general and administrative   $ 159.7   $ 155.5   $ 4.2     2.7 % Percent of revenue     20.8 %   22.3 %             ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fiscal Year ​ ​ ​ ​ ​   (in millions)      2022      2021      Change      % Change   Selling, general and administrative ​ $ 191.0 ​ $ 185.0 ​ $ 6.0   3.2 % Percent of revenue ​   18.6 %   25.7 %     ​   ​ ​ ​ The increase in selling, general and administrative expense in fiscal 20172022 was primarily due to an increaseincreases of $6.1$5.1 million for personnel-related expenses, including costs associated with increased headcount$4.0 million for outside services, and acquisitions. The increase in selling, general and administrative in fiscal 2017 was$1.3 million for sales commissions offset in part by a decrease of $1.4$7.1 million for legal fees, primarily related to litigation.the amortization of intangible assets. The decrease in selling, general and administrative expense as a percent of revenues in fiscal 20172022 was due to our increased revenues. We expect that selling, general and administrative expense will increaseremain relatively stable in absolute dollars in the first quarter of 2018.2023 compared to the fourth quarter of 2022. Interest Income and Other, Net Interest income and other, net in fiscal 20172022 was $6.1$13.9 million compared to $0.8$5.7 million in fiscal 2016.2021. The increase in interest income and other, net in fiscal 20172022 was primarily due to increased interest income earned as a result of higher market interest rates and higher cash, cash equivalents and short-term investments balances.rates. Interest Expense Interest expense in fiscal 20172022 was $14.1$6.7 million compared to $2.6$31.0 million in fiscal 2016.2021. The increasedecrease in interest expense in fiscal 20172022 was primarily due to increased interest expensea decrease of $14.6$20.9 million on our convertible debt, includingin amortization of the debt discount in fiscal 2022 and debt issuance costs. The increase in interest expense was offset in part by a $2.0loss of $3.4 million gain recorded in connection withon the terminationearly extinguishment of our interest rate swap agreement. Provision for Income Taxes     Fiscal Year       (in millions)   2017   2016   Change   Provision for income taxes   $ 29.8   $ 3.0   $ 26.8   Effective tax rate     38.8 %   4.7 %               On December 22, 2017, the U.S. government enacted comprehensive tax legislation commonly referred to as the Tax Cuts and Jobs Act (the "Tax Act"). The effective tax rate forremaining 2022 convertible senior notes in fiscal 2017 increased from fiscal 2016 primarily due to the impacts from the Tax Act including a one-time transition tax of $54.4 million on unrepatriated earnings of foreign subsidiaries as well as tax expense of $21.8 million related to the revaluation of our deferred tax assets and liabilities due to the reduction of the U.S. corporate tax rate from 35% to 21% under the Tax Act. These increases in tax expense were partially offset by the release of a deferred tax liability related to future foreign earnings expected under our intercompany cost-sharing arrangement of $39.4 million, as well as a decrease in the valuation allowance established on federal research and development tax credits of $10.5 million.         The effective tax rates for each of the periods presented differ from the U.S. federal statutory tax rate of 35% due to the amount of income earned in foreign jurisdictions where the tax rate may be lower than the federal statutory rate, and other permanent items including research and development tax credits and nondeductible compensation expenses. In addition, the effective tax rate for fiscal 2017 was also impacted by certain one-time effects as a result of the enactment of U.S. tax reform. Table of Contents         We are still evaluating the impact of the Tax Act on our future U.S. tax liability, but at this time, we expect that the overall impact of the Tax Act on our effective tax rate will be an increase over more normalized levels from 2016. This increase is expected due to certain new provisions included in the Tax Act.2021. See Note 16,11, Income TaxesDebt, to the Consolidated Financial Statements for additional information. Comparison of Fiscal 2016 to Fiscal 2015 Revenues     Fiscal Year                   % Change   (in millions)   2016   2015   Change   Internet of Things   $ 314.6   $ 262.3   $ 52.3     19.9 % Broadcast     157.7     161.8     (4.1 )   (2.5 )% Infrastructure     147.7     122.0     25.7     21.1 % Access     77.6     98.7     (21.1 )   (21.4 )% ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total   $ 697.6   $ 644.8   $ 52.8     8.2 %         The change in revenues in fiscal 2016 was due primarily to: • Increased revenues of $52.3 million for our Internet of Things products, due primarily to increases in the market for our wireless products and the addition of revenues from acquisitions. • Decreased revenues of $4.1 million for Broadcast products, due primarily to decreases in the market for our consumer products. • Increased revenues of $25.7 million for our Infrastructure products, due primarily to increased demand for our isolation and timing products and the sale of patents for $5.0 million. • Decreased revenues of $21.1 million for our Access products, due primarily to decreased demand for our VoIP products and decreases in the market for such products.         Unit volumes of our products increased by 14.6% and average selling prices decreased by 6.2% compared to fiscal 2015. Gross Margin     Fiscal Year       (in millions)   2016   2015   Change   Gross margin   $ 421.5   $ 380.8   $ 40.7   Percent of revenue     60.4 %   59.1 %   1.3 %         The increased dollar amount of gross margin in fiscal 2016 was due to increases in gross margin of $27.9 million for our Internet of Things products and $21.7 million for our Infrastructure products, offset by decreases in gross margin of $7.1 million for our Access products and $1.8 million for our Broadcast products. Gross margin in fiscal 2016 included $5.0 million from the sale of patents, which had no associated cost of revenues. Gross margin in fiscal 2015 included $2.6 million in acquisition-related charges for the fair value write-up associated with inventory acquired from Bluegiga and Telegesis. Table of Contents Research and Development     Fiscal Year                   % Change   (in millions)   2016   2015   Change   Research and development   $ 199.7   $ 188.1   $ 11.6     6.2 % Percent of revenue     28.6 %   29.2 %                     The increase in research and development expense in fiscal 2016 was primarily due to increases of $5.9 million for personnel-related expenses, including costs associated with increased headcount, and $4.4 million for new product introduction costs. Selling, General and Administrative     Fiscal Year                   % Change   (in millions)   2016   2015   Change   Selling, general and administrative   $ 155.5   $ 160.5   $ (5.0 )   (3.1 )% Percent of revenue     22.3 %   24.9 %                     The decrease in selling, general and administrative expense in fiscal 2016 was primarily due to decreases of $2.1 million for adjustments to the fair value of acquisition-related contingent consideration, $1.3 million for personnel-related expenses, $1.0 million for acquisition-related costs, and $1.0 million for legal fees, primarily related to litigation. Interest Income and Other, Net         Interest income and other, net in fiscal 2016 was $0.8 million compared to $0.9 million in fiscal 2015. Interest Expense         Interest expense in fiscal 2016 was $2.6 million compared $2.8 million in fiscal 2015. Provision (Benefit) for Income Taxes     Fiscal Year       (in millions)   2016   2015   Change   Provision for income taxes   $ 3.0   $ 0.7   $ 2.3   Effective tax rate     4.7 %   2.2 %               The effective tax rate for fiscal 2016 increased from fiscal 2015 primarily due to fiscal 2015 including a net benefit resulting from a change in the tax accounting treatment of stock-based compensation in a cost-sharing arrangement following a U.S. Tax Court case (Altera). ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fiscal Year ​ ​ ​ (in millions)      2022      2021      Change Provision (benefit) for income taxes ​ $ 38.5 ​ $ 13.4 ​ $ 25.1 Effective tax rate ​   29.6 %   ​ (30.2) %     ​ ​ The increase in the effective tax rate for fiscal 2022 was partially offset by a reduction in the prior period valuation allowance. See Note 16,Income Taxes, to the Consolidated Financial Statements for additional information.         The effective tax rates for each of the periods presented differ from the federal statutory rate of 35%primarily due to the amountrecognition of certain tax benefits for fiscal 2021 in discontinued operations under the FASB ASU 2019-12, Simplifying the Accounting for Income Taxes, and the required adoption of new U.S. tax rules regarding the capitalization of research and experimental costs in fiscal 2022. Equity-method Earnings Equity-method earnings in fiscal 2022 were $3.4 million compared to $13.7 million in fiscal 2021. The decrease in equity-method earnings in fiscal 2022 was due to a decrease in the unrealized gains on an equity-method investment. Income from discontinued operations, net of income earnedtaxes ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fiscal Year           ​ (in millions)      2022      2021      Change Income from discontinued operations, net of income taxes ​ $ — ​ $ 2,175.3 ​ $ (2,175.3) ​ There was no income from prior year discontinued operations in foreign jurisdictions where the tax rate may be lower than the federal statutory rate and other permanent itemsfiscal 2022. Income from discontinued operations in fiscal 2021 was $2.2 billion, including nondeductible compensation expenses and research and development tax credits.a gain on sale of $2.1 billion, net of tax. 34 Table of Contents Business Outlook The following represents our business outlook for the first quarter of fiscal 2018.2023. ​ ​ ​ ​ Income Statement Item Estimate Revenues $196 million to $202 million Gross margin 59.0%Estimate Operating expenses​ ​ $98.0 million​ Effective tax rateRevenues ​ (15.0)%$242 million to $252 million ​ ​ ​ Gross margin ​ 63% ​ ​ ​ Operating expenses ​ $139 million ​ ​ ​ Effective tax rate ​ 31% ​ ​ ​ Diluted earnings per share ​ $0.420.36 to $0.48$0.46 ​ Liquidity and Capital Resources Our principal sources of liquidity as of December 30, 201731, 2022 consisted of $764.0 million$1.2 billion in cash, cash equivalents and short-term investments, of which approximately $587.3 million$0.9 billion was held by our U.S. entities. The remaining balance was held by our foreign subsidiaries. Our cash equivalents and short-term investments consisted of government debt securities, which include agency bonds, municipal bonds, variable rate demand notes and U.S. government bonds, international government bonds, international agency commercial paper and variable-rate demand notes;securities; corporate debt securities, which include asset-backed securities, corporate bonds, commercial paper and certificates of deposit;Yankee bonds; and money market funds. Our long-term investments consisted of auction-rate securities. As of December 30, 2017, we held $6.0 million par value auction-rate securities, all of which have experienced failed auctions because sell orders exceeded buy orders. See Note 4,Fair Value of Financial Instruments, to the Consolidated Financial Statements for additional information. Operating Activities Net cash provided by operating activities was $189.5$141.3 million during fiscal 2017,2022, compared to net cash provided of $128.9$91.2 million during fiscal 2016.2021. Operating cash flows during fiscal 20172022 reflect our net income of $47.1$91.4 million, adjustments of $70.4$97.5 million for depreciation, amortization, stock-based compensation, equity-method earnings and deferred income taxes, and a net cash inflowoutflow of $72.0$47.6 million due to changes in our operating assets and liabilities.         Net cash provided by operating activities was $128.9 million during fiscal 2016, compared to net cash provided of $105.4 million during fiscal 2015. Operating cash flows during fiscal 2016 reflect our net income of $61.5 million, adjustments of $74.8 million for depreciation, amortization, stock-based compensation and deferred income taxes, and a net cash outflow of $7.4 million due to changes in our operating assets and liabilities. Accounts receivable decreased to $71.4 million at December 30, 201731, 2022 from $74.4$98.3 million at December 31, 2016.January 1, 2022. The decrease in accounts receivable resulted primarily from normal variations in the timing of collections and billings. Our average DSO was 32 days at December 30, 2017 and 3725 days at December 31, 2016.2022 and 42 days at January 1, 2022. Inventory increased to $73.1 million at December 30, 2017 from $59.6$100.4 million at December 31, 2016.2022 from $49.3 million at January 1, 2022. Our inventory level is primarily impacted by our needlevels will vary based on the availability of supply, and to make purchase commitments to support forecasted demand anda lesser extent, the impact of variations between forecasted demand used for purchasing inventory and actual demand. Increased product demand and higher product costs have increased the value of the inventory we hold. Our DOI was 81 days at December 30, 2017 and 7390 days at December 31, 2016. Table of Contents2022 and 55 days at January 1, 2022. Investing Activities Net cash used inprovided by investing activities was $374.3$240.5 million during fiscal 2017,2022, compared to net cash used of $49.6$476.7 million during fiscal 2016. The increase in cash outflows was principally due to an increase of $318.6 million in net purchases of marketable securities and an increase of $8.6 million in net payments for the acquisition of businesses. On December 7, 2017, we entered into an agreement to acquire Sigma Designs or its Z-Wave business. See Note 8,Acquisitions, to the Consolidated Financial Statements for additional information.         Net cash used in investing activities was $49.6 million during fiscal 2016, compared to net cash used of $49.3 million during fiscal 2015. The increase in cash outflows was principally due to an increase of $87.8 million in net purchases of marketable securities and an increase of $2.4 million for the purchase of other assets, offset by a decrease of $89.6 million in net payments for the acquisition of businesses.         We anticipate capital expenditures of approximately $28 to $32 million for fiscal 2018. Additionally, as part of our growth strategy, we expect to evaluate opportunities to invest in or acquire other businesses, intellectual property or technologies that would complement or expand our current offerings, expand the breadth of our markets or enhance our technical capabilities. Financing Activities         Net cash provided by financing activities was $313.0 million during fiscal 2017, compared to net cash used of $52.3 million during fiscal 2016.2021. The increase in cash inflows was principally due to $389.5 million in net proceeds from the issuance of long-term debt and a decrease in cash outflows of $40.5$714.0 million for repurchasesfrom net purchases, sales and maturities of our common stock, offset by an increase of $67.5 millionmarketable securities in payments on debt. See Note 10,Debt, to the Consolidated Financial Statements for additional information. In October 2017, the Board of Directors authorized a program to repurchase up to $100 million of our common stock from January 2018 through December 2018.2022. Financing Activities Net cash used in financing activities was $52.3$887.1 million during fiscal 2016,2022, compared to net cash used of $83.8 million$1.3 billion during fiscal 2015.2021. The decrease in cash outflows was principally due to a decrease of $89.7 million in payments on debt and a decrease of $30.9$266.6 million for repurchases of our common stock offset by $81.2and a decrease of $140.6 million in payments on debt in fiscal 2022. 35 Table of Contents Discontinued Operations Net cash used in discontinued operations was $69.5 million during fiscal 2022 related to income tax payments, compared to net cash provided of $2.6 billion during fiscal 2021. The decrease in cash inflows was principally due to $2.75 billion in proceeds from the issuancesale of long-term debt duringour infrastructure and automotive business in fiscal 2015 and an increase2021, offset by a decrease of $5.0$183.3 million for incomes tax payments on the gain on sale. Debt As of acquisition-related contingent consideration.         OurDecember 31, 2022, our debt facilities include $400included $535 million principal amount of convertible senior notes (the "Notes"“2025 Notes”) and a $300. On January 2, 2022, we irrevocably elected cash settlement for the principal amount of the 2025 Notes. We also had an undrawn $400 million revolving credit facility. On March 6, 2017, we completed a private offering of the Notes. The Notes bear interest semi-annually at a rate of 1.375% per year and will mature on March 1, 2022, unless repurchased, redeemed or converted at an earlier date. In connection with our offering of the Notes, we entered into a second amendment to our prior credit agreement and paid off the remaining balance of $72.5 million. We have an option to increase the size of the borrowing capacity of the revolving credit facility by up to the greater of an aggregate of $200$250 million in additional commitments,and 100% of EBITDA, plus an amount that would not cause a secured leverage ratio to exceed 3.25 to 1.00, subject to certain conditions. See Note 10,Debt, to the Consolidated Financial Statements for additional information. Capital Requirements Our future capital requirements will depend on many factors, including the rate of sales growth, market acceptance of our products, the timing and extent of research and development projects, potential acquisitions of companies or technologies and the expansion of our sales and marketing activities. We believe our existing cash, cash equivalents, investments, and credit under our Credit Facilitycredit facility, and cash generated from operations are sufficient to meet our capital requirements throughshort-term (i.e., over at least the next 12 months,twelve months) and long-term capital requirements, although we could be required, or could elect, to seek additional funding prior to that time. We may enter into acquisitions or strategic arrangements in the future which also could require us to seek additional equity or debt financing. Table of Contents Contractual Obligations         The following table summarizes our contractual obligations as of December 30, 2017 (in thousands):     Payments due by period       Total   2018   2019   2020   2021   2022   Thereafter   Long-term debt obligations (1)   $ 400,000   $ —   $ —   $ —   $ —   $ 400,000   $ —   Interest on long-term debt obligations (2)   $ 27,075   $ 6,400   $ 6,400   $ 6,025   $ 5,500   $ 2,750   $ —   Operating lease obligations (3)   $ 24,860   $ 5,807   $ 4,278   $ 3,539   $ 3,016   $ 2,804   $ 5,416   Purchase obligations (4)   $ 51,707   $ 51,707   $ —   $ —   $ —   $ —   $ —   Other long-term obligations (5)   $ 53,001   $ —   $ 12,017   $ 8,181   $ 3,408   $ 3,831   $ 25,564   (1) Long-term debt obligations represent the principal portion of our convertible senior notes (the "Notes"). The Notes mature on March 1, 2022, unless repurchased, redeemed or converted at an earlier date. (2) Interest on our long-term debtOur purchase obligations primarily represents contractual interest on the Notes, which bear interest semi-annually at a rate of 1.375% per year. Interest excludes non-cash amortization of the debt discount and debt issuance costs. (3) Operating lease obligations include amounts for leased facilities. (4) Purchase obligations include contractual arrangements in the form of purchase orders and purchase commitments with suppliers where there issuppliers. As of December 31, 2022, such purchase obligations were $134.2 million. For a fixed non-cancelable payment schedule or minimum payments due with a reduced delivery schedule. (5) Other long-termdescription of other contractual obligations, primarily represent non-current income taxessee Note 11, Debt, and software license obligations. We are unable to make a reasonably reliable estimate as to when or if cash settlement with taxing authorities will occur for our unrecognized tax benefits. Therefore, our liability of $3.2 million for unrecognized tax benefits is not included in the table above. See Note 16,12, Income Taxes,Leases, to the Consolidated Financial Statements for additional information. Off-Balance Sheet ArrangementsStatements.         AsComparison of December 30, 2017, we had no significant off-balance sheet arrangements.Fiscal 2021 to Fiscal 2020 ​ A discussion of changes in our results of operations and liquidity and capital resources from fiscal 2020 to fiscal 2021 has been omitted from this Form 10-K, but may be found in “Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations” of our Form 10-K filed with the Securities and Exchange Commission on February 2, 2022. Critical Accounting Policies and Estimates The preparation of financial statements and accompanying notes in conformity with U.S. generally accepted accounting principles requires that we make estimates and assumptions that affect the amounts reported. Changes in facts and circumstances could have a significant impact on the resulting estimated amounts included in the financial statements. We believe the following critical accounting policies affect our more complex judgments and estimates. We also have other policies that we consider to be key accounting policies, such as our policies for revenue recognition, including the deferral of revenues and cost of revenues on sales to distributors; however, these policies do not meet the definition of critical accounting estimates because they do not generally require us to make estimates or judgments that are difficult or subjective. Inventory valuation— – We assess the recoverability of inventories through the application of a set of methods, assumptions and estimates. In determining net realizable value, we write down inventory that may be slow moving or have some form of obsolescence, including inventory that has aged more than Table of Contents 12 months. We also adjust the valuation of inventory when its manufacturing cost exceeds the estimated selling price less costs of completion, disposal and transportation. We assess the potential for any unusual customer returns based on known quality or business issues and write-off inventory losses for scrap or non-saleable material. Inventory not otherwise identified to be written down is compared to an assessment of our 12-month forecasted demand. The result of this methodology is compared against the product life cycle and competitive situations in the marketplace to determine the appropriateness of the resulting inventory levels. Demand for our products may fluctuate significantly over time, and actual demand and market conditions may be more or less favorable than those that we project. In the event that actual demand is lower or market conditions are worse than originally projected, additional inventory write-downs may be required. 36 Table of Contents Impairment of goodwill and other long-lived assets – We review long-lived assets which are held and used, including fixed assets and purchased intangible assets, for impairment whenever changes in circumstances indicate that the carrying amount of the assets may not be recoverable. Such evaluations compare the carrying amount of an asset to future undiscounted net cash flows expected to be generated by the asset over its expected useful life and are significantly impacted by estimates of future prices and volumes for our products, capital needs, economic trends and other factors which are inherently difficult to forecast. If the asset is considered to be impaired, we record an impairment charge equal to the amount by which the carrying value of the asset exceeds its fair value determined by either a quoted market price, if any, or a value determined by utilizing a discounted cash flow technique. We test our goodwill for impairment annually as of the first day of our fourth fiscal quarter and in interim periods if certain events occur indicating that the carrying value of goodwill may be impaired. We assess goodwill for impairment by comparing the fair value of a reporting unit to its carrying amount. In determining fair value, several valuation methodologies are allowed, although quoted market prices are the best evidence of fair value. If the fair value of the reporting unit is less than its carrying amount, we recognize an impairment loss equal to that excess amount. Acquired intangible assets – When we acquire a business, a portion of the purchase price is typically allocated to identifiable intangible assets, such as acquired technology and customer relationships. Fair value of these assets is determined primarily using the income approach, which requires us to project future cash flows and apply an appropriate discount rate. We amortize intangible assets with finite lives over their expected useful lives. Our estimates are based upon assumptions believed to be reasonable but which are inherently uncertain and unpredictable. Assumptions may be incomplete or inaccurate, and unanticipated events and circumstances may occur. Incorrect estimates could result in future impairment charges, and those charges could be material to our results of operations. Revenue recognition – We recognize revenue when control of the promised goods or services is transferred to customers, in an amount that reflects the consideration we expect to be entitled to in exchange for those goods or services. In order to achieve this core principle, we apply a five-step process. As part of this process, we analyze the performance obligations in a customer contract and estimate the variable consideration we expect to receive. The evaluation of performance obligations requires that we identify the promised goods and services in the contract. For contracts that contain more than one promised good and service, we then must determine whether the promises are capable of being distinct and if they are separately identifiable from other promises in the contract. Variable consideration primarily includes sales made to distributors under agreements allowing certain rights of return, referred to as stock rotation, and credits issued to the distributor due to price protection. We estimate variable consideration at the most likely amount to which we expect to be entitled. We make these estimates based on available information, including recent sales activity and pricing data. We apply a constraint to our variable consideration estimate which considers both the likelihood of a return and the amount of a potential price concession. If our evaluation of performance obligations is incorrect, we may recognize revenue sooner or later than is appropriate. If our estimates of variable consideration are inaccurate, we may recognize too much or too little revenue in a period. We may adjust assumptions used to estimate consideration periodically based on analysis of prior estimates. Stock-based compensation— – We recognize the fair-value of stock-based compensation transactions in the Consolidated Statements of Income. The fair value of our full-value stock awards (with the exception of market-based performance awards) equals the fair market value of our stock on the date of grant. The fair value of our market-based performance awards is estimated at the date of grant using a Monte-Carlo simulation. The fair value of our stock option and employee stock purchase plan grants is estimated at the date of grant using the Black-Scholes option pricing model. In addition, we are required to estimate the expected forfeiture rate of our stock grants and only recognize the expense for those shares expected to vest. If our actual experience differs significantly from the assumptions used to compute our stock-based compensation cost, or if different assumptions had been used, we may have recorded too much or too little stock-based compensation cost. See Note 12,16, Stock-Based Compensation, to the Consolidated Financial Statements for additional information.         Investments in auction-rate securities—We determine the fair value of our investments in auction-rate securities using a discounted cash flow model. The assumptions used in preparing the discounted cash flow model include estimates for interest rates, amount of cash flows, expected holding periods of the securities and a discount to reflect our inability to liquidate the securities. For available-for-sale auction-rate securities, if the calculated value is below the carrying amount of the securities, we then determine if the decline in value is other-than-temporary. We consider various factors in determining whether an impairment is other-than-temporary, including the severity and duration of the impairment, changes in underlying credit ratings, forecasted recovery, our intent to sell or the likelihood that we would be required to sell the investment before its anticipated recovery in market value and the probability that the scheduled cash payments will continue to be made. When we conclude that an other-than-temporary impairment has occurred, we assess whether we intend to sell the security or if it is more likely than not that we will be required to sell the security before recovery. If either of these two conditions is met, we recognize a charge in earnings equal to the entire difference between the security's amortized cost basis and its fair value. If we do not intend to sell a security and it is not more likely than not that we will be required to sell the security before recovery, the unrealized loss is separated into an amount representing the credit loss, which is recognized in earnings, and the amount related to all other factors, which is recorded in accumulated other comprehensive income (loss).         Acquired intangible assets—When we acquire a business, a portion of the purchase price is typically allocated to identifiable intangible assets, such as acquired technology and customer relationships. Fair value of these assets is determined primarily using the income approach, which requires us to project future cash flows and apply an appropriate discount rate. We amortize intangible assets with finite lives over their expected useful lives. Our estimates are based upon assumptions believed to be reasonable but which are inherently uncertain and unpredictable. Assumptions may be incomplete or inaccurate, and unanticipated events and circumstances may occur. Incorrect estimates could result in future impairment charges, and those charges could be material to our results of operations. Table of Contents         Impairment of goodwill and other long-lived assets—We review long-lived assets which are held and used, including fixed assets and purchased intangible assets, for impairment whenever changes in circumstances indicate that the carrying amount of the assets may not be recoverable. Such evaluations compare the carrying amount of an asset to future undiscounted net cash flows expected to be generated by the asset over its expected useful life and are significantly impacted by estimates of future prices and volumes for our products, capital needs, economic trends and other factors which are inherently difficult to forecast. If the asset is considered to be impaired, we record an impairment charge equal to the amount by which the carrying value of the asset exceeds its fair value determined by either a quoted market price, if any, or a value determined by utilizing a discounted cash flow technique.         We test our goodwill for impairment annually as of the first day of our fourth fiscal quarter and in interim periods if certain events occur indicating that the carrying value of goodwill may be impaired. The goodwill impairment test is a two-step process. The first step of the impairment analysis compares our fair value to our net book value. In determining fair value, the accounting guidance allows for the use of several valuation methodologies, although it states quoted market prices are the best evidence of fair value. If the fair value is less than the net book value, the second step of the analysis compares the implied fair value of our goodwill to its carrying amount. If the carrying amount of goodwill exceeds its implied fair value, we recognize an impairment loss equal to that excess amount. Income taxes— – We are required to calculate income taxes in each of the jurisdictions in which we operate. This process involves calculating the actual current tax liability together with assessing temporary differences in recognition of income (loss) for tax and accounting purposes. These differences result in deferred tax assets and liabilities, which are included in our Consolidated Balance Sheet.Sheets. We record a valuation allowance when it is more likely than not that some portion or all of the deferred tax assets will not be realized. In assessing the need for a valuation allowance, we are required to estimate the amount of expected future taxable income. Judgment is inherent in this process, and differences between the estimated and actual taxable income could result in a material impact on our Consolidated Financial Statements. 37 Table of Contents We recognize liabilities for uncertain tax positions based on a two-step process. The first step requires us to determine whether the weight of available evidence indicates that the tax position has met the threshold for recognition. Therefore, we must evaluate whether it is more likely than not that the position will be sustained on audit, including resolution of any related appeals or litigation processes. The second step requires us to measure the tax benefit of the tax position taken, or expected to be taken, in an income tax return as the largest amount that is more than 50% likely of being realized upon ultimate settlement. This measurement step is inherently complex and requires subjective estimations of such amounts to determine the probability of various possible outcomes. We re-evaluate the uncertain tax positions each quarter based on factors including, but not limited to, changes in facts or circumstances, changes in tax law, expirations of statutes of limitation, effectively settled issues under audit, and new audit activity. Such a change in recognition or measurement would result in the recognition of a tax benefit or an additional charge to the tax provision in the period. Although we believe the measurement of our liabilities for uncertain tax positions is reasonable, no assurance can be given that the final outcome of these matters will not be different than what is reflected in the historical income tax provisions and accruals. If additional taxes are assessed as a result of an audit or litigation, they could have a material effect on our income tax provision and net income in the period or periods for which that determination is made. We operate within multiple taxing jurisdictions and are subject to audit in these jurisdictions. These audits can involve complex issues which may require an extended period of time to resolve and could result in additional assessments of income tax. We believe adequate provisions for income taxes have been made for all periods. Table of Contents Recent Accounting Pronouncements         RecentInformation regarding recent accounting pronouncements which we believe may materially impact the judgments and uncertaintiesis provided in the application of our accounting policies are described below. See Note 2,Significant Accounting Policies, to the Consolidated Financial Statements for additional information.Statements. Such information is incorporated by reference herein.         In February 2016, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) No. 2016-02,Leases (Topic 842). The core principle of Topic 842 is that a lessee should recognize the assets and liabilities that arise from leases. For operating leases, a lessee is required to recognize a right-of-use asset and a lease liability, initially measured at the present value of the lease payments, in the statement of financial position. This ASU is effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. We are evaluating the effect that the adoption of this ASU will have on our financial statements. We currently expect that most of our operating lease commitments will be subject to the new standard and recognized as right-of-use assets and operating lease liabilities upon our adoption of ASU 2016-02, which will increase our total assets and total liabilities that we report relative to such amounts prior to adoption.​         In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606), which supersedes the revenue recognition requirements in Accounting Standards Codification (ASC) 605,Revenue Recognition. The core principle of ASU 2014-09 is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The guidance provides a five-step process to achieve that core principle. In August 2015, the FASB issued ASU No. 2015-14,Revenue from Contracts with Customers (Topic 606): Deferral of the Effective Date, which deferred the effective date of ASU 2014-09 to annual reporting periods beginning after December 15, 2017, including interim periods within that reporting period. In 2016, the FASB issued the following amendments to ASC 606: ASU No. 2016-08,Revenue from Contracts with Customers (Topic 606): Principal versus Agent Considerations (Reporting Revenue Gross versus Net), which clarifies the implementation guidance on principal versus agent considerations; ASU No. 2016-10,Revenue from Contracts with Customers (Topic 606): Identifying Performance Obligations and Licensing, which clarifies guidance on identification of performance obligations and licensing implementation; ASU No. 2016-12,Compensation—Revenue from Contracts with Customers (Topic 606): Narrow-Scope Improvements and Practical Expedients, which provides clarifying guidance on assessing collectibility, presentation of sales taxes, noncash consideration, contract modifications and completed contracts; and ASU No. 2016-20,Technical Corrections and Improvements to Topic 606, Revenue from Contracts with Customers, which clarifies narrow aspects of ASC 606 or corrects unintended application of the guidance. The standard may be applied retrospectively to each prior period presented (full retrospective method) or retrospectively with the cumulative effect recognized as of the date of initial application (modified retrospective method). Under the new standard, we expect the timing of revenue recognition from sales to distributors to be accelerated. We will recognize revenue at the time of sale to the distributor, net of the impact of estimated price adjustments and rights of return. As a result, revenue recognition is expected to be more directly impacted by shipments to distributors. We will adopt this standard using the modified retrospective method. Under this method, incremental disclosures will be provided to present each financial statement line item for fiscal 2018 under the prior standard. We are substantially complete with our evaluation of the effect that the adoption will have on our financial statements. In connection with our adoption of ASC 606, we expect to record a cumulative-effect adjustment to retained earnings of $26.2 million on December 31, 2017. This adjustment reflects the acceleration of $49.1 million in revenues and $19.7 million in costs of revenues as well as other items. Table of Contents Item 7A.    Quantitative and Qualitative Disclosures about Market Risk Interest Income Our investment portfolio includes cash, cash equivalents short-term investments and long-termshort-term investments. Our main investment objectives are the preservation of investment capital and the maximization of after-tax returns on our investment portfolio. Our interest income is sensitive to changes in the general level of U.S. interest rates. A 100 basis point decline in yield on our investment portfolio holdings as of December 30, 201731, 2022 would decrease our future annual interest income by approximately $7.1$11.0 million. Our investment portfolio holdings as of December 31, 2016January 1, 2022 yielded less than 100 basis points. A decline in yield to zero basis points on our investment portfolio holdings as of December 31, 2016January 1, 2022 would have decreaseddecrease our future annual interest income by approximately $1.9$3.6 million. The increase in annual interest income in fiscal 2017 compared to fiscal 2016 was primarily due to increased expected interest income earned as a result of higher market interest rates and higher cash, cash equivalents and short-term investments balances. We believe that our investment policy, which defines the duration, concentration, and minimum credit quality of the allowable investments, meets our investment objectives. Interest Expense We are exposed to interest rate fluctuations in the normal course of our business, including through our Credit Facility.credit facility. The interest rate on the Credit Facilitycredit facility consists of a variable-rate of interest and an applicable margin. While we have drawn from the Credit Facilitycredit facility in the past, we have no borrowings as of December 30, 2017.31, 2022. If we borrow from the Credit Facilitycredit facility in the future, we will again be exposed to interest rate fluctuations. Foreign currency exchange rate risk We are exposed to foreign currency exchange rate risk primarily through assets, liabilities and liabilitiesoperating expenses of our subsidiaries denominated in currencies other than the U.S. dollar. Our foreign subsidiaries are considered to be extensions of the U.S. parent. The functional currency of the foreign subsidiaries is the U.S. dollar. Accordingly, gains and losses resulting from remeasuring transactions denominated in currencies other than U.S. dollars are recorded in interest income and other, net in the Consolidated Statements of Income. We use foreign currency forward contracts to manage exposure to foreign exchange risk. Gains and losses on foreign currency forward contracts are recognized in earnings in the same period asduring which the remeasurement loss and gain of the related foreign currency denominated asset or liability.hedged transaction is recognized. Investments in Auction-rate Securities​         As of December 30, 2017, we held $6.0 million par value auction-rate securities, all of which have experienced failed auctions because sell orders exceeded buy orders. We are unable to predict if these funds will become available before their maturity dates. Additionally, if we determine that an other-than-temporary decline in the fair value of any of our available-for-sale auction-rate securities has occurred, we may be required to adjust the carrying value of the investments through an impairment charge. Item 8.    Financial Statements and Supplementary Data The Financial Statements and supplementary data required by this item are included in Part IV, Item 15 of this Form 10-K and are presented beginning on page F-1. 38 Table of Contents Item 9.    Changes in and Disagreements with Accountants on Accounting and Financial Disclosure None. ​ Item 9A.    Controls and Procedures Evaluation of Disclosure Controls and Procedures We have performed an evaluation under the supervision and with the participation of our management, including our Chief Executive Officer (CEO) and Chief Financial Officer (CFO), of the effectiveness of our disclosure controls and procedures, as defined in Rule 13a-15(e) under the Securities Exchange Act of 1934 (the Exchange Act). Based on that evaluation, our management, including our CEO and CFO, concluded that our disclosure controls and procedures were effective as of December 30, 201731, 2022 to provide reasonable assurance that information required to be disclosed by us in the reports filed or submitted by us under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the SEC'sSEC’s rules and forms. Such disclosure controls and procedures include controls and procedures designed to ensure that information required to be disclosed is accumulated and communicated to our management, including our CEO and CFO, to allow timely decisions regarding required disclosures. Changes in Internal Control over Financial Reporting There was no change in our internal controls during the fiscal quarter ended December 30, 201731, 2022 that materially affected, or is reasonably likely to materially affect, our internal controls over financial reporting. Management'sManagement’s Report on Internal Control over Financial Reporting Our management is responsible for establishing and maintaining adequate internal control over financial reporting. Our internal control system was designed to provide reasonable assurance to our management and Board of Directors regarding the preparation and fair presentation of published financial statements. Our management assessed the effectiveness of our internal control over financial reporting as of December 30, 2017.31, 2022. In making this assessment, it used the criteria set forth by the Committee of Sponsoring Organizations of the Treadway Commission (COSO) inInternal Control—Integrated Framework (2013 framework). Based on our assessment we concluded that, as of December 30, 2017,31, 2022, our internal control over financial reporting is effective based on those criteria. Our independent registered public accounting firm, Ernst & Young LLP, issued an attestation report on our internal control over financial reporting. This report appears on page F-1.F-3. Item 9B.    Other Information         None.On January 26, 2023, the Compensation Committee of the Board of Directors of the Company approved a form of Performance Stock Units Grant Notice and Global PSU Award Agreement (the “PSU Award Agreement”) under its 2009 Stock Incentive Plan, as amended and restated, attached hereto as Exhibit 10.20. The PSU Awards will be earned based upon the level of achievement of the following three performance criteria (each as defined in the PSU Award Agreement): ● 3-Year Revenue CAGR (weighted 50%) ● Year 2 Non-GAAP Operating Income Margin (weighted 25%) ● Year 3 Non-GAAP Operating Income Margin (weighted 25%) The PSU Awards are all subject to the terms and conditions of the 2009 Stock Incentive Plan, as amended and restated, and the form of PSU Award Agreement, a copy of which is attached as Exhibit 10.20 to this Form 10-K and incorporated herein by reference. 39 Table of Contents Item 9C. Disclosure Regarding Foreign Jurisdictions that Prevent Inspections None. ​ Part III Certain information required by Part III is omitted from this report because we intend to file a definitive Proxy Statement pursuant to Regulation 14A (the "Proxy Statement"“Proxy Statement”) no later than 120 days after the end of the fiscal year covered by this report, and certain information to be included therein is incorporated herein by reference. Item 10.    Directors, Executive Officers and Corporate Governance The information required by this Item is incorporated by reference to the Proxy Statement under the sections captioned "Proposal“Proposal One: Election of Directors," "Executive” “Executive Compensation," "Section” “Section 16(a) Beneficial Ownership Reporting Compliance"Compliance” and "Code“Code of Ethics."” ​ Item 11.    Executive Compensation The information under the caption "Executive Compensation"“Executive Compensation” and "Proposal“Proposal One: Election of Directors"Directors” appearing in the Proxy Statement, is incorporated herein by reference. ​ Item 12.    Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters The information under the caption "Ownership“Ownership of Securities"Securities” and "Equity“Equity Compensation Plan Information"Information” appearing in the Proxy Statement is incorporated herein by reference. ​ Item 13.    Certain Relationships and Related Transactions, and Director Independence The information under the caption "Certain“Certain Relationships and Related Transactions, and Director Independence"Independence” appearing in the Proxy Statement is incorporated herein by reference. ​ Item 14.    Principal Accounting Fees and Services The information under the caption "Proposal“Proposal Two: Ratification of Appointment of Independent Registered Public Accounting Firm"Firm” appearing in the Proxy Statement is incorporated herein by reference. ​ 40 Table of Contents Part IV Item 15.    Exhibits and Financial Statement Schedules (a) 1.    Financial Statements Index ​ Index ​ ​ Page Report of independent registered public accounting firm (PCAOB ID: 42) F-1 ​ ​ Report of independent registered public accounting firm F-2 F-3 ​ ​ Consolidated Balance Sheets at December 30, 201731, 2022 and December 31, 2016January 1, 2022 F-3 F-4 ​ ​ Consolidated Statements of Income for the fiscal years ended December 30, 2017, December 31, 20162022, January 1, 2022 and January 2, 20162021 F-4 F-5 ​ ​ Consolidated Statements of Comprehensive Income for the fiscal years ended December 30, 2017, December 31, 20162022, January 1, 2022 and January 2, 20162021 F-5 F-6 ​ ​ Consolidated Statements of Changes in Stockholders'Stockholders’ Equity for the fiscal years ended December 30, 2017, December 31, 20162022, January 1, 2022 and January 2, 20162021 F-6 F-7 ​ ​ Consolidated Statements of Cash Flows for the fiscal years ended December 30, 2017, December 31, 20162022, January 1, 2022 and January 2, 20162021 F-7 F-8 ​ ​ Notes to Consolidated Financial Statements F-8 F-9 2. Schedules         Schedule II—Valuation and Qualifying Accounts​ 2.    Schedules All other schedules have been omitted since the information required by the schedule is not applicable, or is not present in amounts sufficient to require submission of the schedule, or because the information required is included in the Consolidated Financial Statements and notes thereto. 3. Exhibits The exhibits listed on the accompanying index to exhibits immediately following the Consolidated Financial Statements are filed as part of, or hereby incorporated by reference into, this Form 10-K. ​ 41 Table of Contents (b) Exhibits (b)   Exhibits The following exhibits are filed as part of this report: ​ Exhibit Number ​ ​ ​ 2.1* 2.1 ​ * Asset Purchase Agreement and Plan of Merger, dated December 7, 2017, by and amongApril 22, 2021 between Silicon Laboratories Inc., Seguin Merger Subsidiary, Inc. and Sigma Designs,Skyworks Solutions, Inc. (filed as Exhibit 2.1 to the Form 8-K filed on December 8, 2017)April 22, 2021). 3.1* ​ 2.2 * Sale and Purchase Agreement dated January 30, 2015, by and between Silicon Laboratories International Pte. Ltd. and the holders of shares, options and capital loans in Bluegiga Technologies Oy (filed as Exhibit 2.1 to the Form 8-K filed on February 4, 2015). 2.3 * Agreement dated November 20, 2015, by and between the shareholders of Telegesis (UK) Limited and Silicon Laboratories UK Limited (filed as Exhibit 2.1 to the Form 8-K filed on November 23, 2015). 3.1 * Form of Fourth Amended and Restated Certificate of Incorporation of Silicon Laboratories Inc. (filed as Exhibit 3.1 to the Registration Statement on Form S-1 (Securities and Exchange Commission File No. 333-94853) (the "IPO“IPO Registration Statement"Statement”)). 3.2* ​ 3.2 * FourthFifth Amended and Restated Bylaws of Silicon Laboratories Inc. (filed as Exhibit 3.23.1 to the Form 8-K filed on January 27, 2017)February 3, 2021). 4.1* ​ 4.1 * Specimen certificate for shares of common stock (filed as Exhibit 4.1 to the IPO Registration Statement). 4.2* ​ 4.2 * Indenture between Silicon Laboratories Inc. and Wilmington Trust, National Association, as trustee, dated March 6, 2017 (filed as Exhibit 4.1 to the Form 8-K filed on March 6, 2017). 4.3* ​ 4.3 * Form of 1.375% Convertible Senior Note due 2022 (filed as Exhibit 4.2 to the Form 8-K filed on March 6, 2017). 4.4* ​ Indenture between Silicon Laboratories Inc. and Wilmington Trust, National Association, as trustee, dated June 1, 2020 (filed as Exhibit 4.1 to the Form 8-K filed on June 1, 2020). 4.5* 10.1 ​ *+ Form of 0.625% Convertible Senior Note due 2025 (filed as Exhibit 4.2 to the Form 8-K filed on June 1, 2020). 4.6* ​ First Supplemental Indenture between Silicon Laboratories Inc. and Wilmington Trust, National Association, as trustee, dated January 2, 2022 (filed as Exhibit 4.1 to the Form 8-K filed on January 3, 2022). 4.7 ​ Description of Registrant’s Securities Registered under Section 12 of the Exchange Act. 10.1*+ ​ Form of Indemnification Agreement between Silicon Laboratories Inc. and each of its directors and executive officers (filed as Exhibit 10.1 to the IPO Registration Statement). 10.2* ​ 10.2 * Credit Agreement, dated July 31, 2012, by and among Silicon Laboratories Inc., the subsidiaries of the borrower identified therein, Bank of America, N.A., Wells Fargo Bank, National Association, and Regions Bank (filed as Exhibit 10.1 to the Form 8-K filed August 1, 2012). 10.3* ​ 10.3 * First Amendment to Credit Agreement, dated July 24, 2015, by and among Silicon Laboratories Inc., the subsidiaries of the borrower identified therein, Wells Fargo Bank, National Association, Citibank, N.A., Regions Bank, Bank of America, N.A. and the lenders party thereto (filed as Exhibit 10.1 to the Form 8-K filed on July 29, 2015). 10.4* ​ 10.4 * Second Amendment to Credit Agreement, dated February 27, 2017, by and among Silicon Laboratories Inc., the subsidiaries of the borrower identified therein, Wells Fargo Bank, National Association and the lenders party thereto (filed as Exhibit 10.1 to the Form 8-K filed on February 27, 2017). 10.5* ​ Third Amendment to Credit Agreement, dated August 7, 2019, by and among Silicon Laboratories Inc., the subsidiaries of the borrower identified therein, Wells Fargo Bank, National Association and the lenders party thereto (filed as Exhibit 10.1 to the Form 8-K filed on August 7, 2019). 10.6* 10.5 ​ * Fourth Amendment to Credit Agreement, dated May 26, 2020, by and among Silicon Laboratories Inc., the subsidiaries of the borrower identified therein, Wells Fargo Bank, National Association and the lenders party thereto (filed as Exhibit 10.1 to the Form 8-K filed on May 27, 2020). 10.7* ​ Security and Pledge Agreement, dated July 31, 2012, by and among Silicon Laboratories Inc., with the other parties identified as "Obligors"“Obligors” (as defined therein) and such other parties that may become Obligors thereunder after the date thereof, and Bank of America, N.A (filed as Exhibit 10.2 to the Form 8-K filed August 1, 2012). 10.8*+ ​ Table of Contents Exhibit Number 10.6 *+ Silicon Laboratories Inc. 2009 Stock Incentive Plan, as amended and restated on April 20, 2017 (filed as Exhibit 10.1 to the Form 10-Q filed on July 26, 2017). 10.7 *+ Silicon Laboratories Inc. 2009 Employee Stock Purchase Plan, as amended and restated on April 20, 2017 (filed as Exhibit 10.2 to the Form 10-Q filed on July 26, 2017). 10.8 *+ Form of Restricted Stock Units Grant Notice and Global Restricted Stock Units Award Agreement under Registrant'sRegistrant’s 2009 Stock Incentive Plan, as amended and restated (filed as Exhibit 10.7 to the Form 10-K filed on February 1, 2017). 10.9*+ ​ 10.9 *+ Form of Market Stock Units Grant Notice and Global Market Stock Units Award Agreement under Registrant'sRegistrant’s 2009 Stock Incentive Plan, as amended and restated (filed as Exhibit 10.8 to the Form 10-K filed on February 1, 2017). 10.10*+ ​ 10.10 *+ Form of Stock Option Grant Notice and Global Stock Option Award Agreement under Registrant'sRegistrant’s 2009 Stock Incentive Plan, as amended and restated (filed as Exhibit 10.9 to the Form 10-K filed on February 1, 2017). 42 Table of Contents ​ Exhibit Number ​ ​ ​ 10.11* ​ 10.11 *+ Form of Performance Stock Units Grant Notice and Global PSU Award Agreement under Registrant's 2009 Stock Incentive Plan, as amended and restated (filed as Exhibit 10.10 to the Form 10-K filed on February 1, 2017). 10.12 *+ Silicon Laboratories Inc. Form of Change in Control Agreement (filed as Exhibit 10.1 to the Form 8-K filed on October 25, 2016). 10.13 * Purchase Agreement between Silicon Laboratories Inc. and Goldman, Sachs & Co. and Wells Fargo Securities, LLC, as representatives of the several initial purchasers named therein, dated February 28, 2017 (filed as Exhibit 10.1 to the Form 8-K filed on March 6, 2017). 10.12*+ ​ 10.14 *+ Silicon Laboratories Inc. 2018Form of CEO Severance Agreement (filed as Exhibit 10.1 to the Form 8-K filed on May 17, 2021). 10.13*+ ​ Silicon Laboratories Inc. Form of Executive Severance Agreement (filed as Exhibit 10.2 to the Form 8-K filed on May 17, 2021). 10.14*+ ​ Silicon Laboratories Inc. Form of Performance Stock Units Grant Notice and Global PSU Award Agreement under Registrant’s 2009 Stock Incentive Plan, as amended and restated (filed as Exhibit 10.3 to the Form 8-K filed on May 17, 2021). 10.15*+ ​ Silicon Laboratories Inc. 2009 Stock Incentive Plan (As Amended and Restated on April 22, 2021) (filed as Exhibit 4.3 to the Form S-8 filed on May 5, 2021). 10.16*+ ​ Silicon Laboratories Inc. 2009 Employee Stock Purchase Plan (As Amended and Restated on April 22, 2021) (filed as Exhibit 4.4 to the Form S-8 filed on May 5, 2021). 10.17*+ ​ CEO Transition Agreement between G. Tyson Tuttle and Silicon Laboratories Inc. dated July 27, 2021 (filed as Exhibit 10.1 to the Form 8-K filed on July 28, 2021). 10.18*+ ​ Silicon Laboratories Inc. Form of Performance Stock Units Grant Notice and Global PSU Award Agreement under Registrant’s 2009 Stock Incentive Plan, as amended and restated (filed as Exhibit 10.1 to the Form 8-K filed on December 23, 2021). 10.19*+ ​ Silicon Laboratories Inc. 2022 Bonus Plan (filed as Exhibit 10.1 to the Form 8-K filed on January 25, 2018)28, 2022). 10.20+ ​ Silicon Laboratories Inc. Form of Performance Stock Units Grant Notice and Global PSU Award Agreement under Registrant’s 2009 Stock Incentive Plan, as amended and restated. 21 21 ​ Subsidiaries of the Registrant. 23.1 ​ 23.1 Consent of Independent Registered Public Accounting Firm. 24 ​ 24 Power of Attorney (included on signature page to this Form 10-K). 31.1 ​ 31.1 Certification of the Principal Executive Officer, as required by Section 302 of the Sarbanes-Oxley Act of 2002. 31.2 ​ 31.2 Certification of the Principal Financial Officer, as required by Section 302 of the Sarbanes-Oxley Act of 2002. 32.1 ​ 32.1 Certification as required by Section 906 of the Sarbanes-Oxley Act of 2002. 101.INS ​ 101.INS Inline XBRL Instance Document – the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document. 101.SCH ​ 101.SCH Inline XBRL Taxonomy Extension Schema Document 101.CAL ​ 101.CAL Inline XBRL Taxonomy Extension Calculation Linkbase Document 101.LAB ​ 101.LAB Inline XBRL Taxonomy Extension Label Linkbase Document 101.PRE ​ 101.PRE Inline XBRL Taxonomy Extension Presentation Linkbase Document 101.DEF ​ Table of Contents Exhibit Number 101.DEF Inline XBRL Taxonomy Extension Definition Linkbase Document 104 ​ Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101) * Incorporated herein by reference to the indicated filing. + Management contract or compensatory plan or arrangement ​ Item 16.    Form 10-K Summary None. ​ 43 Table of Contents SIGNATURES SCHEDULE II SILICON LABORATORIES INC. VALUATION AND QUALIFYING ACCOUNTS Valuation Allowance for Deferred Tax Assets   Balance at Beginning of Period   Additions Charged to Expenses   Additions Charged to Other Accounts   Deductions   Balance at End of Period           (in thousands)       Year ended December 30, 2017   $ 12,361   $ 2,110   $ 1,732   $ (9,685 ) $ 6,518   Year ended December 31, 2016   $ 10,264   $ 2,715   $ —   $ (618 ) $ 12,361   Year ended January 2, 2016   $ 3,455   $ 6,895   $ —   $ (86 ) $ 10,264   Table of Contents SIGNATURES Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized, in Austin, Texas, on January 31, 2018.February 1, 2023. ​ ​ ​ SILICON LABORATORIES INC. ​ ​ By: /s/ R. Matthew Johnson ​ /s/ G. TYSON TUTTLE G. Tyson Tuttle R. Matthew Johnson ​ ​ President and Chief Executive Officer ​ ​ ​ POWER OF ATTORNEY KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints G. Tyson TuttleR. Matthew Johnson and John C. Hollister and each of them, acting individually, as his or her attorney-in-fact, each with full power of substitution and resubstitution, for him or her and in his or her name, place and stead, in any and all capacities, to sign any and all amendments to this annual report on Form 10-K and other documents in connection herewith and therewith, and to file the same, with all exhibits thereto, with the Securities and Exchange Commission, granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every act and thing requisite and necessary to be done in connection herewith and therewith and about the premises, as fully to all intents and purposes as he or she might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents, or any of them, or their or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof. Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated: ​ Name Title Date Name Title Date ​ ​ ​ ​ ​ /s/ NAVDEEP S. SOOCH Navdeep S. Sooch ​ Chairman of the Board ​ January 31, 2018 February 1, 2023 Navdeep S. Sooch ​ ​ ​ ​ ​ ​ ​ ​ ​ /s/ G. TYSON TUTTLE G. Tyson TuttleR. Matthew Johnson ​ President, Chief Executive Officer and Director (Principal ​ February 1, 2023 R. Matthew Johnson ​ (Principal Executive Officer) ​ January 31, 2018 ​ ​ ​ ​ ​ ​ /s/ JOHN C. HOLLISTER John C. Hollister ​ Senior Vice President and Chief Financial Officer (Principal ​ February 1, 2023 John C. Hollister ​ (Principal Financial Officer) ​ ​ ​ ​ ​ ​ ​ /s/ Mark D. Mauldin ​ Chief Accounting Officer and ​ February 1, 2023 Mark D. Mauldin ​ (Principal Accounting Officer) ​ January 31, 2018 ​ ​ ​ ​ ​ ​ /s/ WILLIAM G. BOCK William G. Bock ​ Director ​ January 31, 2018 February 1, 2023 William G. Bock ​ ​ ​ ​ ​ ​ ​ ​ ​ /s/ Robert Conrad ​ Director ​ February 1, 2023 Robert Conrad ​ ​ ​ ​ ​ ​ ​ ​ ​ /s/ Gregg Lowe ​ Director ​ February 1, 2023 Gregg Lowe ​ ​ ​ ​ ​ ​ ​ ​ ​ /s/ Sherri Luther ​ Director ​ February 1, 2023 Sherri Luther ​ ​ ​ ​ ​ ​ ​ ​ ​ /s/ Nina Richardson ​ Director ​ February 1, 2023 Nina Richardson ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 44 Table of Contents /s/ Sumit Sadana ​ Director ​ Name Title Date February 1, 2023 /s/ JACK R. LAZAR Jack R. Lazar Sumit Sadana ​ Director ​ ​ January 31, 2018 ​ /s/ GREGG LOWE Gregg Lowe ​ ​ Director ​ ​ January 31, 2018 ​ /s/ NINA RICHARDSON Nina Richardson Director January 31, 2018 /s/ SUMIT SADANA Sumit Sadana Director January 31, 2018 /s/ WILLIAM P. WOOD William P. Wood ​ Director ​ January 31, 2018 February 1, 2023 William P. Wood ​ ​ ​ ​ ​ ​ ​ ​ ​ /s/ Christy Wyatt ​ Director ​ February 1, 2023 Christy Wyatt ​ ​ ​ ​ ​ ​ ​ 45 Table of Contents Report of Independent Registered Public Accounting Firm The Board of Directors and Stockholders of Silicon Laboratories Inc. Opinion on Internal Control overthe Financial ReportingStatements We have audited Silicon Laboratories Inc.'s internal control over financial reporting asthe accompanying consolidated balance sheets of December 30, 2017, based on criteria established in Internal Control—Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (2013 framework) (the COSO criteria). In our opinion, Silicon Laboratories Inc. (the Company) maintained,as of December 31, 2022 and January 1, 2022, the related consolidated statements of income, comprehensive income, changes in stockholders’ equity and cash flows for each of the three years in the period ended December 31, 2022, and the related notes (collectively referred to as the “consolidated financial statements”). In our opinion, the consolidated financial statements present fairly, in all material respects, effective internal control overthe financial reporting asposition of the Company at December 30, 2017, based on31, 2022 and January 1, 2022, and the COSO criteria.results of its operations and its cash flows for each of the three years in the period ended December 31, 2022, in conformity with U.S. generally accepted accounting principles. We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the consolidated balance sheets of Silicon Laboratories Inc. as of December 30, 2017 and December 31, 2016, and the related consolidated statements of income, comprehensive income, stockholders' equity and cash flows for each of the three years in the period ended December 30, 2017 of the Company and our report dated January 31, 2018 expressed an unqualified opinion thereon. Basis for Opinion         The Company's management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting included in the accompanying Management's Report on Internal Control over Financial Reporting. Our responsibility is to express an opinion on the Company's internal control over financial reporting based on our audit. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.         We conducted our audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects.         Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, testing and evaluating the design and operating effectiveness of internal control based on the assessed risk, and performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion. Definition and Limitations of Internal Control Over Financial Reporting         A company's internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company's internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company's assets that could have a material effect on the financial statements.         Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate. /s/ Ernst & Young LLP Austin, Texas January 31, 2018 Table of Contents Report of Independent Registered Public Accounting Firm The Board of Directors and Stockholders of Silicon Laboratories Inc. Opinion on the Financial Statements         We have audited the accompanying consolidated balance sheets of Silicon Laboratories Inc. (the Company) as of December 30, 2017 and December 31, 2016, and the related consolidated statements of income, comprehensive income, changes in stockholders' equity and cash flows for each of the three years in the period ended December 30, 2017, and the related noted and financial statement schedule listed in the Index at Item 15(a) (collectively referred to as the "financial statements"). In our opinion, the financial statements referred to above present fairly, in all material respects, the consolidated financial position of the Company at December 30, 2017 and December 31, 2016, and the consolidated results of its operations and its cash flows for each of the three years in the period ended December 30, 2017, in conformity with U.S. generally accepted accounting principles.         We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the Company'sCompany’s internal control over financial reporting as of December 30, 2017,31, 2022, based on criteria established in Internal Control-Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (2013 framework) and our report dated January 31, 2018February 1, 2023 expressed an unqualified opinion thereon. Adoption of ASU No. 2016-09         As discussed in Note 2 to the consolidated financial statements, in 2017 the Company changed its method of accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities and classification on the statement of cash flows due to the adoption of ASU No. 2016-09,Compensation—Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting. Basis for Opinion These financial statements are the responsibility of the Company'sCompany’s management. Our responsibility is to express an opinion on the Company'sCompany’s financial statements based on our audits. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB. We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud. Our audits included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statements. We believe that our audits provide a reasonable basis for our opinion. Critical Audit Matter The critical audit matter communicated below is a matter arising from the current period audit of the financial statements that was communicated or required to be communicated to the audit committee and that: (1) relates to accounts or disclosures that are material to the financial statements and (2) involved especially challenging, subjective, or complex judgments. The communication of the critical audit matter does not alter in any way our opinion on the consolidated financial statements, taken as a whole, and we are not, by communicating the critical audit matter below, providing a separate opinion on the critical audit matter or on the accounts or disclosures to which it relates. ​ F-1 Table of Contents Recognition of Variable Consideration ​ Description of the matter As described in Note 2 of the consolidated financial statements, the transaction price for sales reflects the Company’s expectations about the consideration it will be entitled to receive and may include fixed or variable amounts. Variable consideration primarily includes sales made to distributors under agreements allowing certain rights of return, referred to as stock rotation, and credits issued to the distributor due to price protection. The Company uses significant estimates to determine the expected variable consideration. Variable consideration that does not meet revenue recognition criteria is deferred and a revenue returns liability is recorded. The variable consideration estimate considers both the likelihood of a return and the amount of potential price concession. ​ ​ Auditing management’s variable consideration estimates relating to the pricing concessions and returns liability was judgmental because the calculations involve subjective management assumptions about the estimates of expected future price concessions and product returns. For example, the estimated variable consideration included in the transaction price reflects management’s evaluation of contractual terms, historical experience, assumptions about future economic conditions and the quantity of products distributors are expected to sell. Changes in those assumptions can have a material effect on the amount of variable consideration recognized. How we addressed the matter in our audit ​ We obtained an understanding, evaluated the design and tested the operating effectiveness of controls over the measurement and valuation of the variable consideration recognized. For example, we tested controls over management’s review of the variable consideration methodology, the significant assumptions and the historical data utilized in the estimate for assumed expected price concessions and product returns. To test the variable consideration recognized as revenue we performed audit procedures that included, among others, an evaluation of the Company’s methodology and significant assumptions and estimates and tested the completeness and accuracy of the historical data utilized in the estimates. In our assessment of the methodology, we considered changes in the business, changes in pricing assumptions, and evaluated significant assumptions used by management by comparison to current trends and recent transactions. We also evaluated the accuracy of management’s assumed price concessions and product returns from prior periods by comparing to subsequent actual activity. ​ ​ /s/ Ernst & Young LLP ​ ​ We have served as the Company’s auditor since 1996. ​ Austin, Texas ​ February 1, 2023 ​ ​ ​ ​ ​ F-2 Table of Contents Report of Independent Registered Public Accounting Firm The Board of Directors and Stockholders of Silicon Laboratories Inc. Opinion on Internal Control Over Financial Reporting We have servedaudited Silicon Laboratories Inc.’s internal control over financial reporting as of December 31, 2022, based on criteria established in Internal Control—Integrated Framework issued by the Company's auditor since 1996. Austin, Texas Committee of Sponsoring Organizations of the Treadway Commission (2013 framework) (the COSO criteria). In our opinion, Silicon Laboratories Inc. (the Company) maintained, in all material respects, effective internal control over financial reporting as of December 31, 2022, based on the COSO criteria. We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the consolidated balance sheets of Silicon Laboratories Inc. as of December 31, 2022 and January 1, 2022, the related consolidated statements of income, comprehensive income, stockholders’ equity and cash flows for each of the three years in the period ended December 31, 20182022, and the related notes and our report dated February 1, 2023 expressed an unqualified opinion thereon. Basis for Opinion The Company’s management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting included in the accompanying Management’s Report on Internal Control over Financial Reporting. Our responsibility is to express an opinion on the Company’s internal control over financial reporting based on our audit. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB. We conducted our audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects. Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, testing and evaluating the design and operating effectiveness of internal control based on the assessed risk, and performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion. Definition and Limitations of Internal Control Over Financial Reporting A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements. Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate. ​ /s/ Ernst & Young LLP ​ ​ Austin, Texas ​ February 1, 2023 ​ ​ ​ ​ F-3 Table of Contents Silicon Laboratories Inc. Consolidated Balance Sheets (In thousands, except per share data)     December 30, 2017   December 31, 2016   Assets               Current assets:               Cash and cash equivalents   $ 269,366   $ 141,106   Short-term investments     494,657     153,961   Accounts receivable, net     71,367     74,401   Inventories     73,132     59,578   Prepaid expenses and other current assets     39,120     61,805   ​ ​ ​ ​ ​ ​ ​ ​ Total current assets     947,642     490,851   Property and equipment, net     127,682     129,559   Goodwill     288,227     276,130   Other intangible assets, net     83,144     103,565   Other assets, net     88,387     81,739   ​ ​ ​ ​ ​ ​ ​ ​ Total assets   $ 1,535,082   $ 1,081,844   ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Liabilities and Stockholders' Equity               Current liabilities:               Accounts payable   $ 38,851   $ 39,577   Deferred income on shipments to distributors     50,115     45,568   Other current liabilities     73,359     54,550   ​ ​ ​ ​ ​ ​ ​ ​ Total current liabilities     162,325     139,695   Long-term debt     —     72,500   Convertible debt     341,879     —   Other non-current liabilities     77,862     42,691   ​ ​ ​ ​ ​ ​ ​ ​ Total liabilities     582,066     254,886   Commitments and contingencies               Stockholders' equity:               Preferred stock—$0.0001 par value; 10,000 shares authorized; no shares issued     —     —   Common stock—$0.0001 par value; 250,000 shares authorized; 42,707 and 41,889 shares issued and outstanding at December 30, 2017 and December 31, 2016, respectively     4     4   Additional paid-in capital     102,862     24,463   Retained earnings     851,307     801,999   Accumulated other comprehensive income (loss)     (1,157 )   492   ​ ​ ​ ​ ​ ​ ​ ​ Total stockholders' equity     953,016     826,958   ​ ​ ​ ​ ​ ​ ​ ​ Total liabilities and stockholders' equity   $ 1,535,082   $ 1,081,844   ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ January 1, ​      2022      2022 Assets ​ ​ ​ ​ ​ ​ Current assets: ​ ​ ​ ​ ​ ​ Cash and cash equivalents ​ $ 499,915 ​ $ 1,074,623 Short-term investments ​   692,024 ​   964,582 Accounts receivable, net ​   71,437 ​   98,313 Inventories ​   100,417 ​   49,307 Prepaid expenses and other current assets ​   97,570 ​   51,748 Total current assets ​   1,461,363 ​   2,238,573 Property and equipment, net ​   152,016 ​   146,516 Goodwill ​   376,389 ​   376,389 Other intangible assets, net ​   84,907 ​   118,978 Other assets, net ​   94,753 ​   77,839 Total assets ​ $ 2,169,428 ​ $ 2,958,295 Liabilities and Stockholders’ Equity ​ ​ ​ ​ ​ ​ Current liabilities: ​ ​ ​ ​ ​ ​ Accounts payable ​ $ 89,860 ​ $ 47,327 Current portion of convertible debt, net ​ ​ — ​ ​ 450,599 Deferred revenue and returns liability ​ ​ 6,780 ​ ​ 13,849 Other current liabilities ​ ​ 89,136 ​   157,052 Total current liabilities ​ ​ 185,776 ​   668,827 Convertible debt, net ​ ​ 529,573 ​ ​ — Other non-current liabilities ​ ​ 49,071 ​   77,044 Total liabilities ​ ​ 764,420 ​   745,871 Commitments and contingencies ​ ​ ​ ​ ​ ​ Stockholders’ equity: ​ ​ ​ ​ ​ ​ Preferred stock – $0.0001 par value; 10,000 shares authorized; no shares issued ​ ​ — ​ ​ — Common stock – $0.0001 par value; 250,000 shares authorized; 31,994 and 38,481 shares issued and outstanding at December 31, 2022 and January 1, 2022, respectively ​ ​ 3 ​   4 Retained earnings ​ ​ 1,415,693 ​   2,214,839 Accumulated other comprehensive loss ​ ​ (10,688) ​   (2,419) Total stockholders’ equity ​ ​ 1,405,008 ​   2,212,424 Total liabilities and stockholders’ equity ​ $ 2,169,428 ​ $ 2,958,295 ​ The accompanying notes are an integral part of these Consolidated Financial Statements. ​ F-4 Table of Contents Silicon Laboratories Inc. Consolidated Statements of Income (In thousands, except per share data)     Year Ended       December 30, 2017   December 31, 2016   January 2, 2016   Revenues   $ 768,867   $ 697,626   $ 644,826   Cost of revenues     314,676     276,122     264,056   ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Gross margin     454,191     421,504     380,770   Operating expenses:                     Research and development     209,491     199,744     188,050   Selling, general and administrative     159,726     155,483     160,486   ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Operating expenses     369,217     355,227     348,536   ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Operating income     84,974     66,277     32,234   Other income (expense):                     Interest income and other, net     6,057     806     857   Interest expense     (14,128 )   (2,587 )   (2,828 ) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Income before income taxes     76,903     64,496     30,263   Provision for income taxes     29,811     3,002     677   ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Net income   $ 47,092   $ 61,494   $ 29,586   ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Earnings per share:                     Basic   $ 1.11   $ 1.47   $ 0.70   Diluted   $ 1.09   $ 1.45   $ 0.69   Weighted-average common shares outstanding:                     Basic     42,446     41,713     42,309   Diluted     43,332     42,376     42,945   ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​   Year Ended ​   December 31, ​ January 1, ​ January 2, ​      2022      2022      2021 Revenues ​ $ 1,024,106 ​ $ 720,860 ​ $ 510,928 Cost of revenues ​   381,549 ​   295,468 ​   216,083 Gross profit ​   642,557 ​   425,392 ​   294,845 Operating expenses: ​ ​ ​ ​ ​ ​ ​ ​ ​ Research and development ​   332,326 ​   273,208 ​   235,185 Selling, general and administrative ​   190,971 ​   185,022 ​   166,748 Operating expenses ​   523,297 ​   458,230 ​   401,933 Operating income (loss) ​   119,260 ​   (32,838) ​   (107,088) Other income (expense): ​ ​ ​ ​ ​ ​ ​ ​ ​ Interest income and other, net ​   13,915 ​   5,696 ​   9,027 Interest expense ​   (6,723) ​   (31,033) ​   (34,142) Income (loss) from continuing operations before income taxes ​   126,452 ​   (58,175) ​   (132,203) Provision (benefit) for income taxes ​   38,450 ​   13,427 ​   (14,602) Equity-method earnings ​ ​ 3,400 ​ ​ 13,728 ​ ​ 2,116 Income (loss) from continuing operations ​ ​ 91,402 ​ ​ (57,874) ​ ​ (115,485) Income from discontinued operations, net of income taxes ​ ​ — ​ ​ 2,175,273 ​ ​ 128,016 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Net income ​ $ 91,402 ​ $ 2,117,399 ​ $ 12,531 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Basic earnings (loss) per share: ​ ​ ​ ​ ​ ​ ​ ​ ​ Continuing operations ​ $ 2.61 ​ $ (1.35) ​ $ (2.64) Net income ​ $ 2.61 ​ $ 49.44 ​ $ 0.29 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Diluted earnings (loss) per share: ​ ​ ​ ​ ​ ​ ​ ​ ​ Continuing operations ​ $ 2.54 ​ $ (1.35) ​ $ (2.64) Net income ​ $ 2.54 ​ $ 47.78 ​ $ 0.28 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Weighted-average common shares outstanding: ​ ​ ​ ​ ​ ​ ​ ​ ​ Basic ​   35,086 ​   42,830 ​   43,775 Diluted ​ ​ 36,042 ​ ​ 44,315 ​ ​ 44,372 ​ The accompanying notes are an integral part of these Consolidated Financial Statements. ​ F-5 Table of Contents Silicon Laboratories Inc. Consolidated Statements of Comprehensive Income (In thousands)     Year Ended       December 30, 2017   December 31, 2016   January 2, 2016   Net income   $ 47,092   $ 61,494   $ 29,586   Other comprehensive income (loss), before tax:                     Net changes to available-for-sale securities:                     Unrealized losses arising during the period     (729 )   (179 )   (415 ) Net changes to cash flow hedges:                     Unrealized gains (losses) arising during the period     —     1,466     (728 ) Reclassification for (gains) losses included in net income               (1,808 )   249     489   ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Other comprehensive income (loss), before tax     (2,537 )   1,536     (654 ) Provision (benefit) for income taxes     (888 )   537     (229 ) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Other comprehensive income (loss)     (1,649 )   999     (425 ) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Comprehensive income   $ 45,443   $ 62,493   $ 29,161   ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended ​ ​ December 31, ​ January 1, ​ January 2, ​ ​ 2022      2022      2021 Net income ​ $ 91,402 ​ $ 2,117,399 ​ $ 12,531 Other comprehensive income (loss), before tax: ​ ​ ​ ​ ​ ​ ​ ​ ​ Net changes to available-for-sale securities: ​ ​ ​ ​ ​ ​ ​ ​ ​ Unrealized gains (losses) arising during the period ​   (12,562) ​   (4,338) ​   1,131 Reclassification for (gains) losses included in net income ​ ​ 2,088 ​ ​ (335) ​ ​ (510) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Net changes to cash flow hedges: ​ ​ ​ ​ ​ ​ ​ ​ ​ Unrealized gains (losses) arising during the period ​   (4,110) ​   (598) ​   33 Reclassification for (gains) losses included in net income ​   4,110 ​   (87) ​   825 Other comprehensive income (loss), before tax ​   (10,474) ​   (5,358) ​   1,479 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Provision (benefit) for income taxes ​   (2,205) ​   (1,125) ​   311 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Other comprehensive income (loss) ​   (8,269) ​   (4,233) ​   1,168 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Comprehensive income ​ $ 83,133 ​ $ 2,113,166 ​ $ 13,699 ​ The accompanying notes are an integral part of these Consolidated Financial Statements. ​ F-6 Table of Contents Silicon Laboratories Inc. Consolidated Statements of Changes in Stockholders'Stockholders’ Equity (In thousands)     Common Stock                       Accumulated Other Comprehensive Income (Loss)           Number of Shares   Par Value   Additional Paid-In Capital   Retained Earnings   Total Stockholders' Equity   Balance as of January 3, 2015     42,225   $ 4   $ 29,501   $ 728,633   $ (82 ) $ 758,056   Net income     —     —     —     29,586     —     29,586   Other comprehensive income (loss)     —     —     —     —     (425 )   (425 ) Stock issuances, net of shares withheld for taxes               1,152     —     3,128     —     —     3,128   Income tax benefit (shortfall) from stock-based awards     —     —     (613 )   —     —     (613 ) Repurchases of common stock     (1,650 )   —     (60,978 )   (10,470 )   —     (71,448 ) Stock-based compensation     —     —     42,830     —     —     42,830   ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Balance as of January 2, 2016     41,727     4     13,868     747,749     (507 )   761,114   Net income     —     —     —     61,494     —     61,494   Other comprehensive income (loss)     —     —     —     —     999     999   Stock issuances, net of shares withheld for taxes               1,055     —     6,346     —     —     6,346   Income tax benefit (shortfall) from stock-based awards     —     —     (2,061 )   —     —     (2,061 ) Repurchases of common stock     (893 )   —     (33,299 )   (7,244 )   —     (40,543 ) Stock-based compensation     —     —     39,609     —     —     39,609   ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Balance as of December 31, 2016     41,889     4     24,463     801,999     492     826,958   Cumulative effect of adoption of accounting standard     —     —     —     2,216     —     2,216   Net income     —     —     —     47,092     —     47,092   Other comprehensive income (loss)     —     —     —     —     (1,649 )   (1,649 ) Stock issuances, net of shares withheld for taxes               818     —     (3,938 )   —     —     (3,938 ) Stock-based compensation     —     —     44,809     —     —     44,809   Convertible debt issuance     —     —     37,528     —     —     37,528   ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Balance as of December 30, 2017     42,707   $ 4   $ 102,862   $ 851,307   $ (1,157 ) $ 953,016   ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Accumulated ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Additional ​ ​ ​ ​ Other ​ Total ​ ​ ​ ​ Common ​ Paid-In ​ Retained ​ Comprehensive ​ Stockholders’ ​       Shares       Stock      Capital      Earnings      Income (Loss)      Equity Balance as of December 28, 2019 ​ 43,496 ​ $ 4 ​ $ 133,793 ​ $ 980,608 ​ $ 646 ​ $ 1,115,051 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Cumulative effect of adoption of accounting standard ​ — ​   — ​   — ​ ​ 525 ​ ​ — ​ ​ 525 Net income   — ​   — ​   — ​ ​ 12,531 ​ ​ — ​ ​ 12,531 Other comprehensive income   — ​   — ​   — ​ ​ — ​ ​ 1,168 ​ ​ 1,168 Stock issuances, net of shares withheld for taxes ​ 639 ​ ​ — ​ ​ (3,109) ​ ​ — ​ ​ — ​ ​ (3,109) Repurchases of common stock ​ (210) ​ ​ — ​ ​ (16,287) ​ ​ — ​ ​ — ​ ​ (16,287) Stock-based compensation ​ — ​ ​ — ​ ​ 60,065 ​ ​ — ​ ​ — ​ ​ 60,065 Convertible debt activity ​ — ​ ​ — ​ ​ 29,897 ​ ​ — ​ ​ — ​ ​ 29,897 Balance as of January 2, 2021 ​ 43,925 ​ ​ 4 ​ ​ 204,359 ​ ​ 993,664 ​ ​ 1,814 ​ ​ 1,199,841 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Net income   — ​   — ​   — ​ ​ 2,117,399 ​ ​ — ​ ​ 2,117,399 Other comprehensive loss   — ​   — ​   — ​ ​ — ​ ​ (4,233) ​ ​ (4,233) Stock issuances, net of shares withheld for taxes ​ 548 ​ ​ — ​ ​ (8,056) ​ ​ — ​ ​ — ​ ​ (8,056) Repurchases of common stock ​ (6,520) ​ ​ — ​ ​ (253,820) ​ ​ (896,224) ​ ​ — ​ ​ (1,150,044) Stock-based compensation ​ — ​ ​ — ​ ​ 58,264 ​ ​ — ​ ​ — ​ ​ 58,264 Convertible debt activity ​ 528 ​ ​ — ​ ​ (747) ​ ​ — ​ ​ — ​ ​ (747) Balance as of January 1, 2022 ​ 38,481 ​ ​ 4 ​ ​ — ​ ​ 2,214,839 ​ ​ (2,419) ​ ​ 2,212,424 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Cumulative effect of adoption of accounting standard ​ — ​ ​ — ​ ​ — ​ ​ (59,963) ​ ​ — ​ ​ (59,963) Net income   — ​   — ​   — ​ ​ 91,402 ​ ​ — ​ ​ 91,402 Other comprehensive loss   — ​   — ​   — ​ ​ — ​ ​ (8,269) ​ ​ (8,269) Stock issuances, net of shares withheld for taxes ​ 387 ​ ​ — ​ ​ (3,608) ​ ​ — ​ ​ — ​ ​ (3,608) Repurchases of common stock ​ (6,874) ​ ​ (1) ​ ​ (56,968) ​ ​ (830,585) ​ ​ — ​ ​ (887,554) Stock-based compensation ​ — ​ ​ — ​ ​ 60,576 ​ ​ — ​ ​ — ​ ​ 60,576 Balance as of December 31, 2022 ​ 31,994 ​ $ 3 ​ $ — ​ $ 1,415,693 ​ $ (10,688) ​ $ 1,405,008 ​ The accompanying notes are an integral part of these Consolidated Financial Statements. ​ F-7 Table of Contents Silicon Laboratories Inc. Consolidated Statements of Cash Flows (In thousands)     Year Ended       December 30, 2017   December 31, 2016   January 2, 2016   Operating Activities                     Net income   $ 47,092   $ 61,494   $ 29,586   Adjustments to reconcile net income to cash provided by operating activities:                     Depreciation of property and equipment     14,766     13,216     12,517   Amortization of other intangible assets and other assets     27,246     27,715     29,131   Amortization of debt discount and debt issuance costs     10,146     —     —   Stock-based compensation expense     44,752     39,628     42,791   Income tax shortfall from stock-based awards     —     (1,671 )   (2,028 ) Deferred income taxes     (26,452 )   (4,087 )   (2,136 ) Changes in operating assets and liabilities:                     Accounts receivable     3,234     46     1,702   Inventories     (13,416 )   (6,093 )   2,093   Prepaid expenses and other assets     25,266     (3,568 )   (870 ) Accounts payable     (468 )   263     6,662   Other current liabilities and income taxes     61,924     2,879     2,458   Deferred income on shipments to distributors     4,453     9,713     (5,298 ) Other non-current liabilities     (9,022 )   (10,625 )   (11,161 ) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Net cash provided by operating activities     189,521     128,910     105,447   Investing Activities                     Purchases of available-for-sale investments     (636,363 )   (185,231 )   (107,366 ) Sales and maturities of available-for-sale investments     294,452     161,921     171,831   Purchases of property and equipment     (12,252 )   (10,927 )   (11,268 ) Purchases of other assets     (4,960 )   (8,801 )   (6,399 ) Acquisitions of businesses, net of cash acquired     (15,168 )   (6,546 )   (96,112 ) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Net cash used in investing activities     (374,291 )   (49,584 )   (49,314 ) Financing Activities                     Proceeds from issuance of long-term debt, net     389,468     —     81,238   Payments on debt     (72,500 )   (5,000 )   (94,706 ) Repurchases of common stock     —     (40,543 )   (71,448 ) Payment of taxes withheld for vested stock awards     (15,753 )   (10,561 )   (11,372 ) Proceeds from the issuance of common stock     11,815     13,299     16,998   Payment of acquisition-related contingent consideration     —     (9,500 )   (4,464 ) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Net cash provided by (used in) financing activities     313,030     (52,305 )   (83,754 ) Increase (decrease) in cash and cash equivalents     128,260     27,021     (27,621 ) Cash and cash equivalents at beginning of period     141,106     114,085     141,706   ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Cash and cash equivalents at end of period   $ 269,366   $ 141,106   $ 114,085   ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Supplemental Disclosure of Cash Flow Information:                     Interest paid   $ 3,859   $ 2,222   $ 2,470   ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Income taxes paid   $ 8,929   $ 11,185   $ 2,157   ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Supplemental Disclosure of Non-Cash Activity:                     Stock issued in business combination   $ —   $ 4,181   $ —   ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended ​ ​ December 31, ​ January 1, ​ January 2, ​      2022      2022      2021 Operating Activities ​ ​ ​ ​ ​ ​ ​ ​ ​ Net income ​ $ 91,402 ​ $ 2,117,399 ​ $ 12,531 Adjustments to reconcile net income to net cash provided by (used in) operating activities of continuing operations: ​ ​ ​ ​ ​ ​ ​ ​ ​ Income from discontinued operations, net of income taxes ​ ​ — ​ ​ (2,175,273) ​ ​ (128,016) Depreciation of property and equipment ​   22,524 ​   18,051 ​   16,267 Amortization of other intangible assets ​   34,071 ​   44,505 ​   42,569 Amortization of debt discount and debt issuance costs ​ ​ 2,003 ​ ​ 22,767 ​ ​ 21,433 Loss on extinguishment of convertible debt ​ ​ 3 ​ ​ 3,370 ​ ​ 4,060 Stock-based compensation expense ​   60,510 ​   56,842 ​   49,454 Equity-method earnings ​ ​ (3,400) ​ ​ (13,728) ​ ​ (2,116) Deferred income taxes ​   (18,240) ​   (3,414) ​   (6,533) Changes in operating assets and liabilities: ​ ​ ​ ​ ​ ​ ​ ​ ​ Accounts receivable ​   26,876 ​   (3,144) ​   (17,612) Inventories ​   (51,044) ​   (1,510) ​   9,148 Prepaid expenses and other assets ​   (31,240) ​   44,664 ​   (50,664) Accounts payable ​   36,797 ​   (7,704) ​   15,263 Other current liabilities and income taxes ​   (12,738) ​   2,109 ​   3,215 Deferred revenue and returns liability ​   (7,069) ​   863 ​   (6,694) Other non-current liabilities ​ ​ (9,181) ​ ​ (14,599) ​ ​ 28,856 Net cash provided by (used in) operating activities of continuing operations ​   141,274 ​   91,198 ​   (8,839) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Investing Activities ​ ​ ​ ​ ​ ​ ​ ​ ​ Purchases of marketable securities ​   (607,237) ​   (1,541,971) ​   (519,567) Sales of marketable securities ​   223,354 ​   250,075 ​   164,968 Maturities of marketable securities ​ ​ 650,946 ​ ​ 844,966 ​ ​ 332,389 Purchases of property and equipment ​   (26,525) ​   (28,577) ​   (18,088) Purchases of other assets ​   — ​   (1,158) ​   (1,210) Acquisitions of businesses, net of cash acquired ​ ​ — ​ ​ — ​ ​ (316,809) Net cash provided by (used in) investing activities of continuing operations ​   240,538 ​   (476,665) ​   (358,317) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Financing Activities ​ ​ ​ ​ ​ ​ ​ ​ ​ Proceeds from issuance of debt ​ ​ — ​ ​ — ​ ​ 845,000 Payments on debt ​ ​ (21) ​ ​ (140,572) ​ ​ (624,737) Repurchases of common stock ​ ​ (883,424) ​ ​ (1,150,044) ​ ​ (16,287) Payment of taxes withheld for vested stock awards ​ ​ (15,387) ​ ​ (22,239) ​ ​ (18,124) Proceeds from the issuance of common stock ​ ​ 11,779 ​ ​ 14,183 ​ ​ 15,015 Net cash provided by (used in) financing activities of continuing operations ​   (887,053) ​   (1,298,672) ​   200,867 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Discontinued Operations ​ ​ ​ ​ ​ ​ ​ ​ ​ Operating activities ​ ​ (69,467) ​ ​ (191,642) ​ ​ 144,557 Investing activities ​ ​ — ​ ​ 2,747,684 ​ ​ (2,694) Net cash provided by (used in) discontinued operations ​ ​ (69,467) ​ ​ 2,556,042 ​ ​ 141,863 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Increase (decrease) in cash and cash equivalents ​   (574,708) ​   871,903 ​   (24,426) Cash and cash equivalents at beginning of period ​   1,074,623 ​   202,720 ​   227,146 Cash and cash equivalents at end of period ​ $ 499,915 ​ $ 1,074,623 ​ $ 202,720 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Supplemental Disclosure of Cash Flow Information: ​ ​ ​ ​ ​ ​ ​ ​ ​ Interest paid ​ $ 4,427 ​ $ 5,010 ​ $ 8,662 Income taxes paid ​ $ 132,005 ​ $ 266,277 ​ $ 7,217 ​ The accompanying notes are an integral part of these Consolidated Financial Statements. ​ ​ F-8 Table of Contents Silicon Laboratories Inc. Notes to Consolidated Financial Statements December 30, 201731, 2022 1. Description of Business Silicon Laboratories Inc. (the "Company"“Company”), a Delaware corporation, is a leading provider of silicon, software and solutionsleader in secure, intelligent wireless technology for a smarter, more connected world. Our award-winning technologies are shaping the futureintegrated hardware and software platform, intuitive development tools, industry-leading ecosystem, and robust support help customers build advanced industrial, commercial, home, and life applications. The Company provides analog-intensive, mixed-signal solutions for use in a variety of electronic products in a broad range of applications for the Internet of Things (IoT), Internet infrastructure, including connected home and security, industrial automation and control, smart metering, smart lighting, commercial building automation, consumer electronics, asset tracking and automotive markets.medical instrumentation. Within the semiconductor industry, the Company is known as a "fabless"“fabless” company meaning that the integrated circuits (ICs) incorporated in its products are manufactured by third-party foundry semiconductor companies. On July 26, 2021, the Company sold its infrastructure and automotive business to Skyworks Solutions, Inc for $2.75 billion in cash. The financial results of the infrastructure and automotive business have been presented as discontinued operations in the Consolidated Financial Statements. See Note 3, Discontinued Operations, for additional information. ​ 2. Significant Accounting Policies Basis of Presentation and Principles of Consolidation The Company prepares financial statements on a 52- or 53-week fiscal year that ends on the Saturday closest to December 31. Fiscal 2017, 20162022 and 20152021 had 52 weeks. Fiscal 2020 had 53 weeks with the extra week occurring in the first quarter of the year. Fiscal 2022, 2021 and 2020 ended on December 30, 2017, December 31, 20162022, January 1, 2022 and January 2, 2016,2021, respectively. The accompanying Consolidated Financial Statements include the accounts of the Company and its wholly owned subsidiaries. All significant intercompany balances and transactions have been eliminated in consolidation. Foreign Currency Transactions The Company'sCompany’s foreign subsidiaries are considered to be extensions of the U.S. Company. The functional currency of the foreign subsidiaries is the U.S. dollar. Accordingly, gains and losses resulting from remeasuring transactions denominated in currencies other than U.S. dollars are included in interest income and other, net in the Consolidated Statements of Income. Use of Estimates The preparation of financial statements in conformity with U.S. generally accepted accounting principles generally accepted in the United States(GAAP) requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Among the significant estimates affecting the financial statements are those related to inventories, stock-based compensation, investments in auction-rate securities,goodwill, acquired intangible assets, goodwill,other long-lived assets, revenue recognition, stock-based compensation and income taxes. Actual results could differ from those estimates, and such differences could be material to the financial statements. The Company periodically reviews the assumptions used in its financial statement estimates. Reclassifications         Certain reclassifications have been made to prior year financial statements to conform to current year presentation. Fair Value of Financial Instruments The fair values of the Company'sCompany’s financial instruments are recorded using a hierarchical disclosure framework based upon the level of subjectivity of the inputs used in measuring assets and liabilities. The three levels are described below: Level 1—1 - Inputs are unadjusted, quoted prices in active markets for identical assets or liabilities at the measurement date. Table of Contents Silicon Laboratories Inc. Notes to Consolidated Financial Statements December 30, 2017 (Continued) 2. Significant Accounting Policies (Continued) Level 2—2 - Inputs are inputs other than quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly.indirectly observable, such as quoted prices for similar assets or liabilities and quoted prices in less active markets. Level 3—3 - Inputs are unobservable for the asset or liability and are developed based on the best information available in the circumstances, which might include the Company'sCompany’s own data. F-9 Table of Contents Silicon Laboratories Inc. Notes to Consolidated Financial Statements (Continued) December 31, 2022 2. Significant Accounting Policies (Continued) Cash and Cash Equivalents Cash and cash equivalents consist of cash deposits, certificates of deposit, money market funds and investments in debt securities with original maturities of ninety days or less when purchased. Investments The Company'sCompany’s investments typically have original maturities greater than ninety days as of the date of purchase and are classified as either available-for-sale or trading securities. Investments in available-for-sale securities are reported at fair value, with unrealized gains and losses, net of tax, recorded as a component of accumulated other comprehensive income (loss)loss in the Consolidated Balance Sheet. Investments in trading securities are reported at fair value, with both realized and unrealized gains and losses recorded in interest income and other, net in the Consolidated Statement of Income. Investments in which the Company has the ability and intent, if necessary, to liquidate in order to support its current operations (including those with contractual maturities greater than one year from the date of purchase) are classified as short-term. The Company reviews its available-for-sale investments as of the end of each reporting period for other-than-temporary declines in fair value based on the specific identification method. The Company records an allowance for credit loss when a decline in fair value is due to credit-related factors. The Company considers various factors in determining whether an impairmentinvestment is other-than-temporary,impaired, including the severity and duration of the impairment, changes in underlying credit ratings, forecasted recovery, its intent to sell or the likelihood that it would be required to sell the investment before its anticipated recovery in market value and the probability that the scheduled cash payments will continue to be made. When the Company concludes that an other-than-temporarya credit-related impairment has occurred, the Company assesses whether it intends to sell the security or if it is more likely than not that it will be required to sell the security before recovery. If either of these two conditions is met, the Company recognizes a charge in earnings equal to the entire difference between the security'ssecurity’s amortized cost basis and its fair value. If the Company does not intend to sell a security and it is not more likely than not that it will be required to sell the security before recovery, the unrealized loss is separated into an amount representing the credit loss, which is recognized in earnings, and the amount related to all other factors, which is recorded in accumulated other comprehensive income (loss).loss. In addition, the Company has made equity investments in non-publicly traded companies that it accounts for using the equity method or cost method.companies. Equity investments in which the Company does not have control, but has the ability to exercise significant influence over operating and financial policies, are accounted for using the equity method. The Company'sCompany’s proportionate share of income or loss is recorded in interest income and other, netequity-method earnings in the Consolidated StatementStatements of Income. All otherThe Company has elected to use the measurement alternative under Financial Accounting Standards Board (FASB) Accounting Standards Update (ASU) 2019-04, Codification Improvements to Topic 326, Financial Instruments—Credit Losses, Topic 815, Derivatives and Hedging, and Topic 825, Financial Instruments, to value non-marketable equity investments that do not have readily determinable fair values. Under the alternative, these non-marketable equity investments are accounted for usingrecorded at cost minus impairment, if any, plus or minus changes resulting from qualifying observable price changes of the cost method.same or similar securities in observable transactions. The Company periodically reviews theseits equity investments for other-than-temporary declines in fair value based on the specific identification method and writes down investments to their estimated fair values when it determines that an Table of Contents Silicon Laboratories Inc. Notes to Consolidated Financial Statements December 30, 2017 (Continued) 2. Significant Accounting Policies (Continued) other-than-temporarya decline has occurred. There were no impairment charges recognized on equity investments during any of the periods presented. Derivative Financial Instruments The Company uses derivative financial instruments to manage certain exposures to the variability of interest rates and foreign currency exchange rates. The Company'sCompany’s objective is to offset increases and decreases in expenses resulting from these exposures with gains and losses on the derivative contracts, thereby reducing volatility of earnings. The Company does not use derivative contracts for speculative or trading purposes. The Company recognizes derivatives, on a gross basis, in the Consolidated Balance Sheet at fair value. Cash flows from derivatives are classified according to the nature of the cash receipt or payment in the Consolidated Statement of Cash Flows. The Company uses interest rate swap agreements to manage exposure to interest rate risks. The swap agreements are designated and qualify as cash flow hedges. The effective portion of the gain or loss on the interest rate swaps is recorded in accumulated other comprehensive income (loss) as a separate component of stockholders' equity and is subsequently recognized as interest expense in the Consolidated Statement of Income when the hedged exposure affects earnings.         The Companyalso uses foreign currency forward contracts to manage exposure to foreign exchange risk. These instruments are used to reduce the earnings impact that exchange rate fluctuations have on non-U.S. dollar balance sheet exposures. The Company recognizes gains and losses on the foreign currency forward contracts in interest income and other, net in the Consolidated Statement of Income in the same period as the remeasurement loss and gain of the related foreign currency denominated asset or liability. The Company does not apply hedge accounting to itsthese foreign currency derivative instruments.forward contracts. F-10 Table of Contents InventoriesSilicon Laboratories Inc. Notes to Consolidated Financial Statements (Continued) December 31, 2022 2. Significant Accounting Policies (Continued) Inventories Inventories are stated at the lower of cost, determined using the first-in, first-out method, or net realizable value. The Company writes down the carrying value of inventory to net realizable value for estimated obsolescence or unmarketable inventory based upon assumptions about the age of inventory, future demand and market conditions. Inventory impairment charges establish a new cost basis for inventory and charges are not subsequently reversed to income even if circumstances later suggest that increased carrying amounts are recoverable. Property and Equipment Property and equipment are stated at cost, net of accumulated depreciation. Depreciation is computed using the straight-line method over the useful lives of the assets ranging from three to sevenfifteen years. Leasehold improvements are depreciated over the lease term or their useful life, whichever is shorter. The Company owns the facilities it had previously leased for its headquarters in Austin, Texas. The buildings are located on land which is leased through 2099 from a third party. The rents for these ground leases were prepaid for the term of the leases by the previous lessee.leases. The buildings and Table of Contents Silicon Laboratories Inc. Notes to Consolidated Financial Statements December 30, 2017 (Continued) 2. Significant Accounting Policies (Continued) leasehold interest in ground leases are being depreciated on a straight-line basis over their estimated useful lives of 40 years and 86 years, respectively. Business Combinations The Company records business combinations using the acquisition method of accounting and, accordingly, allocates the fair value of purchaseacquisition consideration to the assets acquired and liabilities assumed based on their fair values at the acquisition date. The excess of the fair value of purchase consideration over the fair value of the assets acquired and liabilities assumed is recorded as goodwill. The results of operations of the businesses acquired are included in the Company'sCompany’s consolidated results of operations beginning on the date of the acquisition. Long-Lived Assets Purchased intangible assets are stated at cost, net of accumulated amortization, and are amortized using the straight-line method over their estimated useful lives, ranging from onefive to twelve years. Fair values are determined primarily using the income approach, in which the Company projects future expected cash flows and applies an appropriate discount rate. Long-lived assets "held“held and used"used” by the Company are reviewed for impairment whenever events or changes in circumstances indicate that their net book value may not be recoverable. When such factors and circumstances exist, the Company compares the projected undiscounted future cash flows associated with the related asset or group of assets over their estimated useful lives against their respective carrying amounts. Impairment, if any, is based on the excess of the carrying amount over the fair value of those assets and is recorded in the period in which the determination was made.         The carrying value of goodwill is reviewed at least annually by the Company for possible impairment. The goodwill impairment test is a two-step process. The first step of the impairment analysis compares the fair value of the reporting unit to the net book value of the reporting unit. In determining fair value, several valuation methodologies are allowed, although quoted market prices are the best evidence of fair value. If the results of the first step demonstrate that the net book value is greater than the fair value, the Company must proceed to step two of the analysis. Step two of the analysis compares the implied fair value of goodwill to its carrying amount. If the carrying amount of goodwill exceeds its implied fair value, an impairment loss is recognized equal to that excess. The Company tests goodwill for impairment annually as of the first day of its fourth fiscal quarter and in interim periods if events occur that would indicate that the carrying value of goodwill may be impaired. Revenue Recognition         Revenues are generated predominately The Company assesses goodwill for impairment by salescomparing the fair value of the Company's products. Thereporting unit to its carrying amount. In determining fair value, several valuation methodologies are allowed, although quoted market prices are the best evidence of fair value. If the fair value of the reporting unit is less than its carrying amount, an impairment loss is recognized equal to that excess amount. ​ F-11 Table of Contents Silicon Laboratories Inc. Notes to Consolidated Financial Statements (Continued) December 31, 2022 2. Significant Accounting Policies (Continued) Leases At the commencement date of a lease, the Company recognizes revenuea liability to make lease payments and an asset representing the right to use the underlying asset during the lease term. The lease liability is measured at the present value of lease payments over the lease term. As its leases typically do not provide an implicit rate, the Company uses its incremental borrowing rate based on the information available at the commencement date taking into consideration necessary adjustments for collateral, depending on the facts and circumstances of the lessee and the leased asset, and term to match the lease term. The right-of-use (“ROU”) asset is measured at cost, which includes the initial measurement of the lease liability and initial direct costs incurred by the Company and excludes lease incentives. Lease liabilities are recorded in other current liabilities and other non-current liabilities. ROU assets are recorded in other assets, net. Lease terms may include options to extend or terminate the lease when it is reasonably certain that the Company will exercise that option. Operating lease costs are recognized on a straight-line basis over the lease term. Lease agreements that contain both lease and non-lease components are generally accounted for separately. Revenue Recognition Revenue is recognized when control of the promised goods or services is transferred to the customer, in an amount that reflects the consideration the Company expects to be entitled to in exchange for those goods or services. Substantially all of the following criteria are met: 1) thereCompany’s contracts with customers contain a single performance obligation, the sale of mixed-signal integrated circuit (IC) products. This performance obligation is persuasive evidence that an arrangement exists, 2)satisfied when control of the product is transferred to the customer, which typically occurs upon delivery. Unsatisfied performance obligations primarily represent contracts for products with future delivery dates. The Company has opted to not disclose the amount of goods has occurred, 3)unsatisfied performance obligations as these contracts have original expected durations of less than one year. The transaction price reflects the sales price isCompany’s expectations about the consideration it will be entitled to receive from the customer and may include fixed or determinable, and 4) collectibility is reasonably assured. Generally, revenue from productvariable amounts. Variable consideration primarily includes sales to direct customers and contract manufacturers is recognized upon shipment.         A portion of the Company's sales are made to distributors under agreements allowing certain rights of return, referred to as stock rotation, and price protection relatedcredits issued to the final sellingdistributor due to price protection. The Company estimates variable consideration at the most likely amount to which it expects to be entitled. The estimate is based on information available to the end customers. Accordingly, TableCompany, including recent sales activity and pricing data. The Company applies a constraint to its variable consideration estimate which considers both the likelihood of Contents Silicon Laboratories Inc. Notes to Consolidated Financial Statements December 30, 2017 (Continued) 2. Significant Accounting Policies (Continued) a return and the amount of a potential price concession. Variable consideration that does not meet revenue recognition criteria is deferred. The Company defersrecords a right of return asset in prepaid expenses and other current assets for the costs of distributor inventory not meeting revenue recognition criteria. A corresponding deferred revenue and cost of revenue on such sales until the distributors sell the product to the end customers. The net balance of deferred revenue less deferred cost ofreturns liability amount is recorded for unrecognized revenue associated with inventory shipped tosuch costs. The Company’s products carry a distributor butone-year replacement warranty. Payments are typically due within 30 days of invoicing and do not yet sold to an end customer is recorded in the deferred income on shipments to distributors liability on the Consolidated Balance Sheet. Such net deferred income balance reflects the Company's estimate of the impact of rights of return and price protection.include a significant financing component.         A small portion of the Company's revenues is derived from the sale of patents. The above revenue recognition criteria for patent sales are generally met upon the execution of the patent sale agreement. Shipping and Handling Shipping and handling costs are classified as a component of cost of revenues in the Consolidated Statements of Income. Stock-Based Compensation The Company has stock-based compensation plans, which are more fully described in Note 12,16, Stock-Based Compensation. The Company accounts for those plans using a fair-value method and recognizes the expense in its Consolidated Statement of Income. F-12 Table of Contents Silicon Laboratories Inc. Notes to Consolidated Financial Statements (Continued) December 31, 2022 2. Significant Accounting Policies (Continued) Research and Development Research and development costs are expensed as incurred. Research and development expense consists primarily of personnel-related expenses, including stock-based compensation, as well as new product masks, external consulting and services costs, equipment tooling, equipment depreciation, amortization of intangible assets, and an allocated portion of our occupancy costs. Assets purchased to support the Company'sCompany’s ongoing research and development activities are capitalized when related to products which have achieved technological feasibility or have an alternative future use, and are amortized over their estimated useful lives. Advertising Advertising costs are expensed as incurred. Advertising expenses were $1.4 million, $1.6 million and $1.8 million in fiscal 2017, 2016 and 2015, respectively.not material for any of the periods presented. Income Taxes The Company accounts for income taxes using the asset and liability method whereby deferred tax asset and liability account balances are determined based on differences between the financial reporting and the tax bases of assets and liabilities and are measured using the enacted tax laws and related rates that will be in effect when the differences are expected to reverse. These differences result in deferred tax assets and liabilities, which are included in the Company'sCompany’s Consolidated Balance Sheet.Sheets. The Company then assesses the likelihood that the deferred tax assets will be realized. A valuation allowance is established against deferred tax assets to the extent the Company believes that it is more likely than not that the deferred tax assets will not be realized, taking into consideration the level of historical taxable income and projections for future taxable income over the periods in which the temporary differences are deductible. Table of Contents Silicon Laboratories Inc. Notes to Consolidated Financial Statements December 30, 2017 (Continued) 2. Significant Accounting Policies (Continued) Uncertain tax positions must meet a more-likely-than-not threshold to be recognized in the financial statements and the tax benefits recognized are measured based on the largest benefit that has a greater than 50% likelihood of being realized upon final settlement. See Note 16,18, Income Taxes, for additional information. RecentAdoption of New Accounting PronouncementsStandard         In August 2017, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) No. 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities.Convertible Instruments The objectives of this ASU are to improve the financial reporting of hedging relationships to better portray the economic results of an entity's risk management activities in its financial statements and to make certain targeted improvements to simplify the application of the hedge accounting guidance in current GAAP. This ASU is effective for fiscal years beginning after December 15, 2018 and interim periods within those fiscal years. The Company is currently evaluating the effect of the adoption of this ASU, but anticipates that the adoption will not have a material impact on its financial statements.         In January 2017, the FASB issued ASU No. 2017-03, Accounting Changes and Error Corrections (Topic 250) and Investments—Equity Method and Joint Ventures (Topic 323). This ASU amends the disclosure requirements for ASU No. 2014-09,Revenue from Contracts with Customers (Topic 606), ASU No. 2016-02,Leases (Topic 842) and ASU No. 2016-13,Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments. This ASU states that if a registrant does not know or cannot reasonably estimate the impact that the adoption of the above ASUs is expected to have on the financial statements, then in addition to making a statement to that effect, the registrant should consider additional qualitative financial statement disclosures to assist the reader in assessing the significance of the impact that the standard will have on the financial statements of the registrant when adopted. This ASU was effective upon issuance. The Company adopted this ASU and added qualitative financial statement disclosures as deemed necessary.         In January 2017, the FASB issued ASU No. 2017-042020-06, , Intangibles—GoodwillDebt—Debt with Conversion and Other (Topic 350): SimplifyingOptions (Subtopic 470-20) and Derivatives and Hedging— Contracts in Entity’s Own Equity (Subtopic 815-40), on January 2, 2022, the Test for Goodwill Impairment. This ASU eliminates Step 2 from the goodwill impairment test. Instead, an entity should recognize an impairment charge for the amount by which the carrying value exceeds the reporting unit's fair value, not to exceed the total amountfirst day of goodwill allocated to that reporting unit. This ASU is effective for annual or any interim goodwill impairment tests inits fiscal years beginning afteryear ended December 15, 2019.31, 2022. The Company is currently evaluatingelected the effect of the adoption of this ASU, but anticipates that the adoption will not have a material impact on its financial statements.         In January 2017, the FASB issued ASU No. 2017-01, Business Combinations (Topic 805): Clarifying the Definition of a Business. This ASU clarifies the definition of a business with the objective of adding guidance to assist entities with evaluating whether transactions should be accounted for as acquisitions (or disposals) of assets or businesses. This ASU is effective for annual periods beginning after December 15, 2017, including interim periods within those periods. The impact of the adoption of this ASU on the Company's financial statements will be dependent upon the terms of any future acquisitions or dispositions. Table of Contents Silicon Laboratories Inc. Notes to Consolidated Financial Statements December 30, 2017 (Continued) 2. Significant Accounting Policies (Continued)         In August 2016, the FASB issued ASU No. 2016-16,Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other Than Inventory. This ASU requires the recognition of the income tax consequences of an intra-entity transfer of an asset other than inventory when the transfer occurs. The amendments in this ASU should be applied on a modified retrospective basis through a cumulative-effect adjustment directly to retained earnings astransition method of adoption at the beginning of the period of adoption. The Company early adopted this ASU on January 1, 2017. The adoption did not havethrough a material impact on its financial statements.         In August 2016, the FASB issued ASU No. 2016-15,Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments. This ASU provides guidance on statement of cash flows presentation for eight specific cash flow issues where diversity in practice exists. This ASU is effective for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years. The Company expects that the adoption will not have a material impact on its financial statements.         In June 2016, the FASB issued ASU No. 2016-13,Financial Instruments—Credit Losses (Topic326): Measurement of Credit Losses on Financial Instruments. This ASU requires instruments measured at amortized cost to be presented at the net amount expected to be collected. Entities are also required to record allowances for available-for-sale debt securities rather than reduce the carrying amount. This ASU is effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. The Company expects that the adoption will not have a material impact on its financial statements.         In March 2016, the FASB issued ASU No. 2016-09,Compensation—Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting. This ASU simplifies several aspects of the accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities and classification on the statement of cash flows. The Company adopted this ASU on January 1, 2017. Amendments related to the classification of excess tax benefits on the statement of cash flows were applied prospectively.cumulative-effect adjustment. Prior periods have not been adjusted. InThe following reflects the material changes recorded in connection with itsthe cumulative-effect adjustment (in thousands): ​ ​ ​ ​ ​ ​ ​ Increase Financial Statement Line Item      (Decrease) Current portion of convertible debt, net ​ $ 76,991 Other non-current liabilities ​ $ (17,028) Retained earnings ​ $ (59,963) ​ The primary impact of the Company’s adoption of ASU 2016-09,2020-06 was to increase the Company has recorded excesscarrying value of its convertible debt, representing the unamortized debt discount, and reduce deferred tax benefits of $4.3 million during fiscal 2017.liabilities related to convertible debt. The adoption had no other material impact onreduced reported interest expense recorded in connection with convertible debt, which increased basic earnings per share and diluted earnings per share by $0.47 and $0.46, respectively, for the Company's financial statements.         In February 2016, the FASB issued ASU No. 2016-02,Leases (Topic 842). The core principle of Topic 842 is that a lessee should recognize the assets and liabilities that arise from leases. For operating leases, a lessee is required to recognize a right-of-use asset and a lease liability, initially measured at the present value of the lease payments, in the statement of financial position. This ASU is effective for fiscal years beginning afteryear ended December 15, 2018, including interim periods within those fiscal years. The Company is evaluating the effect that the adoption of this ASU will have on its financial statements. The Company currently expects that most of its operating lease commitments will be subject to the new standard and recognized as right-of-use assets and operating lease liabilities upon the adoption of ASU 2016-02, which will increase the total assets and total liabilities that it reports relative to such amounts prior to adoption.31, 2022.         In January 2016, the FASB issued ASU No. 2016-01,Financial Instruments—Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities. This ASU addresses certain aspects of recognition, measurement, presentation and disclosure of financial instruments. This ASU is effective for fiscal years beginning after December 15, 2017, including interimF-13 Table of Contents Silicon Laboratories Inc. Notes to Consolidated Financial Statements (Continued) December 30, 2017 (Continued)31, 2022 3. Discontinued Operations 2. Significant Accounting Policies (Continued) periods within those fiscal years.On July 26, 2021, the Company sold its infrastructure and automotive business to Skyworks Solutions, Inc. for $2.75 billion in cash. The Company expects that the adoption will not have a material impact on its financial statements.         In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606), which supersedes the revenue recognition requirements in Accounting Standards Codification (ASC) 605,Revenue Recognition. The core principle of ASU 2014-09 is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The guidance provides a five-step process to achieve that core principle. In August 2015, the FASB issued ASU No. 2015-14,Revenue from Contracts with Customers (Topic 606): Deferralresults of the Effective Date,infrastructure and automotive business, which deferred the effective date of ASU 2014-09 to annual reporting periods beginning after December 15, 2017, including interim periods within that reporting period. In 2016, the FASB issued the following amendments to ASC 606: ASU No. 2016-08,Revenueare readily distinguishable from Contracts with Customers (Topic 606): Principal versus Agent Considerations (Reporting Revenue Gross versus Net), which clarifies the implementation guidance on principal versus agent considerations; ASU No. 2016-10,Revenue from Contracts with Customers (Topic 606): Identifying Performance Obligations and Licensing, which clarifies guidance on identification of performance obligations and licensing implementation; ASU No. 2016-12,Compensation—Revenue from Contracts with Customers (Topic 606): Narrow-Scope Improvements and Practical Expedients, which provides clarifying guidance on assessing collectibility, presentation of sales taxes, noncash consideration, contract modifications and completed contracts; and ASU No. 2016-20,Technical Corrections and Improvements to Topic 606, Revenue from Contracts with Customers, which clarifies narrow aspects of ASC 606 or corrects unintended applicationother components of the guidance. Company, have been presented as discontinued operations in the Consolidated Financial Statements because the sale represented a strategic shift for the Company. The standard may be applied retrospectively to each prior period presented (full retrospective method) or retrospectivelyfollowing table presents the financial results of the infrastructure and automotive business (the “discontinued operations”) in the Company’s Consolidated Statements of Income (in thousands, except per share data): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended ​ ​ January 1, ​ January 2, ​      2022      2021 Revenues ​ $ 233,918 ​ $ 375,749 Costs of revenues ​   95,457 ​ ​ 143,068 Operating expenses ​ ​ 46,643 ​ ​ 87,293 Operating income from discontinued operations ​   91,818 ​ ​ 145,388 Gain on sale of discontinued operations ​ ​ 2,423,161 ​ ​ — Income from discontinued operations before income taxes ​ ​ 2,514,979 ​ ​ 145,388 Provision for income taxes ​   339,706 ​ ​ 17,372 Income from discontinued operations ​ $ 2,175,273 ​ $ 128,016 ​ ​ ​ ​ ​ ​ ​ Income from discontinued operations per share: ​   ​ ​ ​    Basic ​ $ 50.79 ​ $ 2.92 Diluted ​ $ 49.09 ​ $ 2.89 ​ Continuing Involvement In connection with the cumulative effect recognized asclosing of the date of initial application (modified retrospective method). Under the new standard,sale, the Company expectsentered into certain ancillary agreements with Skyworks, including a Transition Services Agreement (“TSA”). Through the timing of revenue recognition from salesTSA, the Company has subleased certain premises to distributorsSkyworks and will provide or provides various temporary support services for three to be accelerated. The Company will recognize revenue ateighteen months after the time of sale to the distributor, netclose of the impacttransaction, depending on the service provided. Although the services provided under the TSA will generate continuing cash flows between the Company and Skyworks for the duration of estimated price adjustments and rights of return. As a result, revenue recognition isthe TSA, the amounts have not been nor are expected to be more directly impactedmaterial to the ongoing operations of either entity. Fees received by shipments to distributors. Thethe Company will adopt this standard usingunder the modified retrospective method. Under this method, incremental disclosures will be provided to present each financial statement line itemTSA were $5.2 million for fiscal 2018 under the prior standard. The Company is substantially complete with its evaluation of the effect that the adoption will have on its financial statements. In connection with its adoption of ASC 606, the Company expects to record a cumulative-effect adjustment to retained earnings of $26.2 million on December 31, 2017. This adjustment reflects the acceleration of $49.1 million in revenues and $19.7 million in costs of revenues as well as other items.2022. ​ F-14 Table of Contents Silicon Laboratories Inc. Notes to Consolidated Financial Statements (Continued) December 30, 2017 (Continued)31, 2022 3.4. Earnings (Loss) Per Share The following table sets forth the computation of basic and diluted earnings per share (in thousands, except per share data):     Year Ended       December 30, 2017   December 31, 2016   January 2, 2016   Net income   $ 47,092   $ 61,494   $ 29,586   ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Shares used in computing basic earnings per share     42,446     41,713     42,309   Effect of dilutive securities:                     Stock options and other stock-based awards     886     663     636   ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Shares used in computing diluted earnings per share     43,332     42,376     42,945   ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Earnings per share:                     Basic   $ 1.11   $ 1.47   $ 0.70   Diluted   $ 1.09   $ 1.45   $ 0.69           For​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended ​      December 31, ​ January 1, ​ January 2, ​ ​ 2022      2022      2021 Income (loss) from continuing operations ​ $ 91,402 ​ $ (57,874) ​ $ (115,485) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Shares used in computing basic earnings (loss) per share ​ ​ 35,086 ​   42,830 ​   43,775 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Effect of dilutive securities: ​ ​ ​ ​ ​ ​ ​ ​ ​ Stock-based awards and convertible debt ​ ​ 956 ​   — ​   — Shares used in computing diluted earnings (loss) per share ​ ​ 36,042 ​   42,830 ​   43,775 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Earnings (loss) per share: ​ ​ ​ ​ ​ ​ ​ ​ ​ Basic ​ $ 2.61 ​ $ (1.35) ​ $ (2.64) Diluted ​ $ 2.54 ​ $ (1.35) ​ $ (2.64) ​ Diluted shares for fiscal years ended December 30, 2017, December 31, 20162021 and January 2, 2016, approximately 0.0 million, 0.12020 excluded 1.5 million and 0.10.6 million shares, respectively, consisting of restricted stock units (RSUs), market stock units (MSUs) and stock options, were not included indue to the diluted earnings per share calculation sinceCompany’s loss from continuing operations for the shares were anti-dilutive.periods. The Company intendshas irrevocably elected to settle the principal amount of its convertible senior notes in cash and intends to settle any excess value in shares in the event of a conversion. Accordingly,For fiscal 2022, 2021 and 2020 approximately 0.6 million shares, issuable upon conversion of the principal amount have been excluded from the calculation of diluted earnings per share. If the market value of the notes under certain prescribed conditions exceeds the conversion amount, the excess will be included in the denominator for the computation of diluted earnings per share using the treasury stock method. As of December 30, 2017, no such1.0 million shares and 0.2 million shares, respectively, were included in the denominator for the calculation of diluted earnings per share. See Note 10,11, Debt, to the Consolidated Financial Statements for additional information. ​ Table of Contents Silicon Laboratories Inc. Notes to Consolidated Financial Statements December 30, 2017 (Continued) 4.5. Fair Value of Financial Instruments The following summarizes the valuation of the Company'sCompany’s financial instruments (in thousands). The tables do not include either cash on hand or assets and liabilities that are measured at historical cost or any basis other than fair value. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair Value Measurements ​ ​ ​ ​ ​ at December 31, 2022 Using ​ ​ ​ ​ ​ Quoted Prices in ​ Significant Other ​ ​ ​ ​ ​ Active Markets for ​ Observable ​ ​ ​ ​ ​ Identical Assets ​ Inputs ​ ​ ​ Description      (Level 1)      (Level 2)      Total Cash equivalents: ​ ​ ​ ​ ​ ​ ​ ​ ​ Money market funds ​ $ 310,969 ​ $ — ​ $ 310,969 Corporate debt securities ​ ​ — ​ ​ 3,249 ​ ​ 3,249 Total cash equivalents ​ $ 310,969 ​ $ 3,249 ​ $ 314,218 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Short-term investments: ​ ​ ​ ​ ​ ​ ​ ​ ​ Corporate debt securities ​ $ — ​ $ 501,014 ​ $ 501,014 Government debt securities ​ ​ — ​ ​ 191,010 ​ ​ 191,010 Total short-term investments ​ $ — ​ $ 692,024 ​ $ 692,024 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total ​ $ 310,969 ​ $ 695,273 ​ $ 1,006,242 ​ F-15     Fair Value Measurements at December 30, 2017 Using       Description   Quoted Prices in Active Markets for Identical Assets (Level 1)   Significant Other Observable Inputs (Level 2)   Significant Unobservable Inputs (Level 3)   Total   Assets:                           Cash equivalents:                           Money market funds   $ 106,047   $ —   $ —   $ 106,047   Corporate debt securities     —     11,231     —     11,231   Government debt securities     53,615     1,453     —     55,068   ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total cash equivalents   $ 159,662   $ 12,684   $ —   $ 172,346   Short-term investments:                           Government debt securities   $ 94,575   $ 228,247   $ —   $ 322,822   Corporate debt securities     —     171,835     —     171,835   ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total short-term investments   $ 94,575   $ 400,082   $ —   $ 494,657   Other assets, net:                           Auction rate securities   $ —   $ —   $ 5,681   $ 5,681   ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total   $ —   $ —   $ 5,681   $ 5,681                             ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total   $ 254,237   $ 412,766   $ 5,681   $ 672,684   ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Table of Contents Silicon Laboratories Inc. Notes to Consolidated Financial Statements (Continued) December 30, 2017 (Continued)31, 2022 4.5. Fair Value of Financial Instruments (Continued)     Fair Value Measurements at December 31, 2016 Using       Description   Quoted Prices in Active Markets for Identical Assets (Level 1)   Significant Other Observable Inputs (Level 2)   Significant Unobservable Inputs (Level 3)   Total   Assets:                           Cash equivalents:                           Money market funds   $ 69,432   $ —   $ —   $ 69,432   Corporate debt securities     —     7,153     —     7,153   Government debt securities     —     3,904     —     3,904   ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total cash equivalents   $ 69,432   $ 11,057   $ —   $ 80,489   Short-term investments:                           Government debt securities   $ 12,416   $ 97,103   $ —   $ 109,519   Corporate debt securities     —     44,442     —     44,442   ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total short-term investments   $ 12,416   $ 141,545   $ —   $ 153,961   Other assets, net:                           Auction rate securities   $ —   $ —   $ 5,196   $ 5,196   Derivative instruments     —     1,808     —     1,808   ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total   $ —   $ 1,808   $ 5,196   $ 7,004                             ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total   $ 81,848   $ 154,410   $ 5,196   $ 241,454   ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair Value Measurements ​ ​ ​ ​ ​ at January 1, 2022 Using ​ ​ ​ ​ ​ Quoted Prices in ​ Significant Other ​ Significant ​ ​ ​ ​ ​ Active Markets for ​ Observable ​ Unobservable ​ ​ ​ ​ ​ Identical Assets ​ Inputs ​ Inputs ​ ​ ​ Description      (Level 1)      (Level 2)      (Level 3)      Total Cash equivalents: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Money market funds ​ $ 845,740 ​ $ — ​ $ — ​ $ 845,740 Corporate debt securities ​ ​ — ​   3,552 ​   — ​   3,552 Government debt securities ​ ​ — ​ ​ 2,950 ​ ​ — ​ ​ 2,950 Total cash equivalents ​ $ 845,740 ​ $ 6,502 ​ $ — ​ $ 852,242 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Short-term investments: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Corporate debt securities ​ $ — ​ $ 773,461 ​ $ — ​ $ 773,461 Government debt securities ​ ​ 71,509 ​ ​ 119,612 ​ ​ — ​ ​ 191,121 Total short-term investments ​ $ 71,509 ​ $ 893,073 ​ $ — ​ $ 964,582 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Other assets, net: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Auction rate securities ​ $ — ​ $ — ​ $ 4,980 ​ $ 4,980 Total ​ $ — ​ $ — ​ $ 4,980 ​ $ 4,980 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total ​ $ 917,249 ​ $ 899,575 ​ $ 4,980 ​ $ 1,821,804 ​ Valuation methodology The Company'sCompany’s cash equivalents and short-term investments that are classified as Level 2 are valued using non-binding market consensus prices that are corroborated with observable market data; quoted market prices for similar instruments in active markets; quoted prices in less active markets; or pricing models, such as a discounted cash flow model, with all significant inputs derived from or corroborated with observable market data. Investments classified as Level 3 are valued using a discounted cash flow model. The assumptions used in preparing the discounted cash flow model include estimates for interest rates, amount of cash flows, expected holding periods of the securities and a discount to reflect the Company'sCompany’s inability to liquidate the securities. The Company'sCompany’s foreign currency derivative instruments are valued using discounted cash flow models. The assumptions used in preparing the valuation models include quoted interest swap rates, foreign exchange rates, forward and spot prices for currencies and market observable data of similar instruments. Available-for-saleContractual maturities of investments The Company'sCompany’s available-for-sale investments are reported at fair value, with unrealized gains and losses, net of tax, recorded as a component of accumulated other comprehensive income (loss)loss in the Consolidated Table of Contents Silicon Laboratories Inc. Notes to Consolidated Financial Statements December 30, 2017 (Continued) 4. Fair Value of Financial Instruments (Continued) Balance Sheet. The following summarizes the contractual underlying maturities of the Company'sCompany’s available-for-sale investments at December 30, 201731, 2022 (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​      ​ ​      Fair ​ ​ Cost ​ Value Due in one year or less ​ $ 462,096 ​ $ 454,957 Due after one year through ten years ​ ​ 243,957 ​ ​ 237,561 Due after ten years ​ ​ 2,755 ​ ​ 2,755 ​ ​ $ 708,808 ​ $ 695,273 ​ F-16 Table of Contents Silicon Laboratories Inc. Notes to Consolidated Financial Statements (Continued) December 31, 2022     Cost   Fair Value   Due in one year or less   $ 393,600   $ 393,201   Due after one year through ten years     198,981     197,922   Due after ten years     81,884     81,561   ​ ​ ​ ​ ​ ​ ​ ​   $ 674,465   $ 672,684   ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 5. Fair Value of Financial Instruments (Continued) Unrealized Gains and Losses The available-for-sale investments that were in a continuous unrealized loss position, aggregated by length of time that individual securities have been in a continuous loss position, were as follows (in thousands):     Less Than 12 Months   12 Months or Greater   Total   As of December 30, 2017   Fair Value   Gross Unrealized Losses   Fair Value   Gross Unrealized Losses   Fair Value   Gross Unrealized Losses   Government debt securities   $ 244,880   $ (931 ) $ 3,027   $ (15 ) $ 247,907   $ (946 ) Corporate debt securities     151,149     (447 )   11,578     (73 )   162,727     (520 ) Auction rate securities     —     —     5,681     (319 )   5,681     (319 ) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​   $ 396,029   $ (1,378 ) $ 20,286   $ (407 ) $ 416,315   $ (1,785 ) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​   Less Than 12 Months   12 Months or Greater   Total   As of December 31, 2016   Fair Value   Gross Unrealized Losses   Fair Value   Gross Unrealized Losses   Fair Value   Gross Unrealized Losses   Government debt securities   $ 79,743   $ (156 ) $ —   $ —   $ 79,743   $ (156 ) Corporate debt securities   21,737   (132 )   —   —   21,737   (132 ) Auction rate securities   —   —   5,196   (804 )   5,196   (804 ) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​   $ 101,480   $ (288 ) $ 5,196   $ (804 ) $ 106,676   $ (1,092 ) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Less Than 12 Months ​ 12 Months or Greater ​ Total ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Gross ​ ​ ​ ​ Gross ​ ​ ​ ​ Gross ​ ​ Fair ​ Unrealized ​ Fair ​ Unrealized ​ Fair ​ Unrealized As of December 31, 2022      Value      Losses      Value      Losses      Value      Losses Corporate debt securities ​ $ 307,085 ​ $ (5,297) ​ $ 185,467 ​ $ (4,090) ​ $ 492,552 ​ $ (9,387) Government debt securities ​ ​ 76,651 ​ ​ (626) ​ ​ 100,209 ​ ​ (3,541) ​ ​ 176,860 ​ ​ (4,167) ​ ​ $ 383,736 ​ $ (5,923) ​ $ 285,676 ​ $ (7,631) ​ $ 669,412 ​ $ (13,554) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Less Than 12 Months ​ 12 Months or Greater ​ Total ​ ​ ​ ​ ​ Gross ​ ​ ​ ​ Gross ​ ​ ​ ​ Gross ​ ​ Fair ​ Unrealized ​ Fair ​ Unrealized ​ Fair ​ Unrealized As of January 1, 2022      Value      Losses      Value      Losses      Value      Losses Corporate debt securities ​ $ 418,917 ​ $ (1,451) ​ $ 326 ​ $ (1) ​ $ 419,243 ​ $ (1,452) Government debt securities ​ ​ 126,957 ​ ​ (750) ​ ​ — ​ ​ — ​ ​ 126,957 ​ ​ (750) Auction rate securities ​ ​ — ​ ​ — ​ ​ 4,980 ​ ​ (1,020) ​ ​ 4,980 ​ ​ (1,020) ​ ​ $ 545,874 ​ $ (2,201) ​ $ 5,306 ​ $ (1,021) ​ $ 551,180 ​ $ (3,222) ​ The gross unrealized losses as of December 30, 2017 and December 31, 20162022 were due primarily to changes in market interest rates. The gross unrealized losses as of January 1, 2022 were due primarily to changes in market interest rates and the illiquidity of the Company'sCompany’s auction-rate securities. The Company's auction-rate securities have been illiquid since 2008 when auctions for the securities failed because sell orders exceeded buy orders. These securities have a contractual maturity date of 2046 at December 30, 2017. ​ The Company is unable to predict if these funds will become available before their maturity date.         The Company considers the declinesrecords an allowance for credit loss when a decline in investment market value of its marketable securities investment portfoliois due to be temporary in nature.credit-related factors. When evaluating an investment for other-than-temporary impairment, the Company reviews factors such as the severity and duration of the impairment, changes in underlying credit ratings, forecasted recovery, the Company'sCompany’s intent to sell or the likelihood that it would be required to sell the investment before its anticipated recovery in market value and the Table of Contents Silicon Laboratories Inc. Notes to Consolidated Financial Statements December 30, 2017 (Continued) 4. Fair Value of Financial Instruments (Continued) probability that the scheduled cash payments will continue to be made. As of December 30, 2017,31, 2022, there were no material declines in the Company has determined that no other-than-temporary impairment losses existed .market value of available-for-sale investments due to credit-related factors. At December 30, 201731, 2022 and December 31, 2016,January 1, 2022, there were no material unrealized gains associated with the Company'sCompany’s available-for-sale investments. Level 3 fair value measurementsF-17         The following summarizes quantitative information about Level 3 fair value measurements. Auction rate securities Fair Value at December 30, 2017 (000s)   Valuation Technique   Unobservable Input   Weighted Average $5,681   Discounted cash flow   Estimated yield   1.74%         Expected holding period   10 years         Estimated discount rate   3.37%         The Company has followed an established internal control procedure used in valuing auction rate securities. The procedure involves the analysis of valuation techniques and evaluation of unobservable inputs commonly used by market participants to price similar instruments, and which have been demonstrated to provide reasonable estimates of prices obtained in actual market transactions. Outputs from the valuation process are assessed against various market sources when they are available, including marketplace quotes, recent trades of similar illiquid securities, benchmark indices and independent pricing services. The technique and unobservable input parameters may be recalibrated periodically to achieve an appropriate estimation of the fair value of the securities.         Significant changes in any of the unobservable inputs used in the fair value measurement of auction rate securities in isolation could result in a significantly lower or higher fair value measurement. An increase in expected yield would result in a higher fair value measurement, whereas an increase in expected holding period or estimated discount rate would result in a lower fair value measurement. Generally, a change in the assumptions used for expected holding period is accompanied by a directionally similar change in the assumptions used for estimated yield and discount rate. Contingent consideration         The Company has followed an established internal control procedure used in valuing contingent consideration. The valuation of contingent consideration for the Zentri acquisition was based on a discounted cash flow model. The valuation of contingent consideration for the Energy Micro acquisition was based on a Monte Carlo simulation model. The fair value of the valuations was estimated on a quarterly basis through a collaborative effort by the Company's sales, marketing and finance departments. Table of Contents Silicon Laboratories Inc. Notes to Consolidated Financial Statements (Continued) December 30, 2017 (Continued)31, 2022 4.5. Fair Value of Financial Instruments (Continued) Level 3 fair value measurements The following summarizes the activity in Level 3 financial instruments for the years ended December 30, 201731, 2022 and December 31, 2016January 1, 2022 (in thousands): Assets ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended ​   December 31, ​ January 1, Auction Rate Securities      2022      2022 Beginning balance ​ $ 4,980 ​ $ 5,340 Sales (1) ​ ​ (6,000) ​ ​ — Loss recognized in earnings ​ ​ 300 ​ ​ — Gain (loss) included in other comprehensive income (loss) ​   720 ​   (360) Ending balance ​ $ — ​ $ 4,980 (1) On May 31, 2022, the Company sold its prior remaining holding of auction-rate securities for $5.7 million.     Year Ended   Auction Rate Securities   December 30, 2017   December 31, 2016   Beginning balance   $ 5,196   $ 7,126   Settlements     —     (2,000 ) Gain included in other comprehensive income (loss)     485     70   ​ ​ ​ ​ ​ ​ ​ ​ Ending balance   $ 5,681   $ 5,196   ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Liabilities     Year Ended   Contingent Consideration (1)   December 30, 2017   December 31, 2016   Beginning balance   $ —   $ 14,073   Issues     3,829     —   Settlements (2)     —     (11,375 ) Reclassification to acquisition-related liabilities (3)     (3,380 )   —   Gain recognized in earnings (4)     (449 )   (2,698 ) ​ ​ ​ ​ ​ ​ ​ ​ Ending balance   $ —   $ —   ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (1) In connection with the acquisitions of Zentri and Energy Micro, the Company recorded contingent consideration based upon the expected achievement of certain milestone goals. Changes to the fair value of contingent consideration due to changes in assumptions used in preparing the valuation models were recorded in selling, general and administrative expenses in the Consolidated Statement of Income. (2) On March 11, 2016, the Company entered into an agreement which settled the total amount of contingent consideration related to the Energy Micro acquisition (including all amounts for fiscal 2015 through 2018). See Note 8,Acquisitions, for additional information. (3) The milestone goal related to the Zentri contingent consideration was based on fiscal 2017 revenue from certain Zentri products, which is now completed. The accrued consideration is recorded in other current liabilities in the Consolidated Balance Sheet. (4) The gain recognized in earnings in fiscal 2016 was due to the settlement of the Energy Micro contingent consideration. This gain was offset in part by a charge of approximately $2.7 million recorded in fiscal 2016 for a portion of the contingent consideration accounted for as post-combination compensation expense. Table of Contents Silicon Laboratories Inc. Notes to Consolidated Financial Statements December 30, 2017 (Continued) 4. Fair Value of Financial Instruments (Continued) Fair values of other financial instruments The Company'sCompany’s debt is recorded at cost, but is measured at fair value for disclosure purposes. The fair value of the Company'sCompany’s convertible senior notes is determined using observable market prices. The notes are traded in less active markets and are therefore classified as a Level 2 fair value measurement. The fair value of the convertible senior notes at December 30, 2017 was $466.2 million. The Company's prior debt under the Credit Facility bore interest at the Eurodollar rate plus an applicable margin. Fair value was estimated based on Level 2 inputs, using a discounted cash flow analysis of future principal payments and projected interest based on current market rates. As of December 30, 2017, there were no amounts outstanding under the Credit Facility. As of December 31, 2016,2022 and January 1, 2022, the fair value of the Company's debt under the Credit Facilitynotes was approximately $72.5 million.$671.9 million and $944.3 million, respectively. The Company'sCompany’s other financial instruments, including cash, accounts receivable and accounts payable, are recorded at amounts that approximate their fair values due to their short maturities. 5.6. Derivative Financial Instruments The Company uses derivative financial instruments to manage certain exposures to the variability of interest rates and foreign currency exchange rates. The Company'sCompany’s objective is to offset increases and decreases in expenses resulting from these exposures with gains and losses on the derivative contracts, thereby reducing volatility of earnings. Interest Rate SwapsCash Flow Hedges Foreign Currency Forward Contracts The Company is exposedmay use foreign currency forward contracts to interestreduce the earnings impact that exchange rate fluctuations have on operating expenses denominated in currencies other than the U.S. dollar. Changes in the normal course of its business, including through its Credit Facility. The interest payments on the facility are calculated using a variable-rate of interest. The Company entered into an interest rate swap agreement with an original notionalfair value of $72.5 million in July 2016 and, effectively, converted the Eurodollar portion of the variable-rate interest payments to fixed-rate interest payments through July 2020. The Company terminated the swap agreement on March 6, 2017 in connection with the payoff of its Credit Facility. The Company's previous swap agreement with a remaining notional value of $72.5 million was terminated on July 8, 2016.         The Company's interest rate swap agreements were designated and qualified as cash flow hedges. The effective portion of the gain or loss on the interest rate swaps wascontracts are recorded in accumulated other comprehensive income (loss)loss in the Consolidated Balance Sheet and subsequently reclassified into earnings in the period during which the hedged transaction is recognized. The reclassified amount is reported in the same financial statement line item as a separate componentthe hedged item. If the foreign currency forward contracts are terminated or can no longer qualify as hedging instruments prior to maturity, the fair value of stockholders' equity and was subsequentlythe contracts recorded in accumulated other comprehensive loss may be recognized as interest expense in the Consolidated Statement of Income when the hedged exposure affected earnings. The terminationbased on an assessment of the swap agreement on March 6, 2017 resulted incontracts at the reclassificationtime of $1.8 milliontermination. As of unrealized gains that were previously recorded in accumulated other comprehensive income (loss) into earnings during fiscal 2017. The fair value ofDecember 31, 2022, the interest rate swap terminated on July 8, 2016 was not material. The Company did not discontinue any other cash flow hedges in any of the periods presented. Table of Contents Silicon Laboratories Inc. Notes to Consolidated Financial Statements December 30, 2017 (Continued) 5. Derivative Financial Instruments (Continued)         The Company's derivative financial instrument in cash flow hedging relationships consisted of the following (in thousands):         Fair Value       Balance Sheet Location   December 30, 2017   December 31, 2016   Interest rate swap   Other assets, net   $ —   $ 1,808           The before-tax effect of derivative instruments in cash flow hedging relationships was as follows (in thousands):     Gain (Loss) Recognized in OCI on Derivatives (Effective Portion) during the Year Ended   Location of Loss Reclassified into Income   Loss Reclassified from Accumulated OCI into Income (Effective Portion) during the Year Ended       December 30, 2017   December 31, 2016   January 2, 2016       December 30, 2017   December 31, 2016   January 2, 2016   Interest rate swaps   $ —   $ 1,466   $ (728 ) Interest expense   $ 1,808   $ (249 ) $ (489 ) Foreign Currency Forward Contracts         The Company usesheld no such foreign currency forward contracts to manage exposure to foreign exchange risk. As of December 30, 2017 and December 31, 2016, the Company held one foreign currency forward contract denominated in Norwegian Krone with a notional value of $2.4 million and $3.9 million, respectively.contracts. The fair value of the contracts, wascontract gains or losses recognized in other comprehensive loss and amounts reclassified from accumulated other comprehensive loss into earnings were not material asfor any of December 30, 2017 or December 31, 2016. The contract held as of December 30, 2017 has a maturity date of March 28, 2018 and it was not designated as a hedging instrument.the periods presented.         The before-tax effect of derivative instruments not designated as hedging instruments was as follows (in thousands):​ F-18     Year Ended     Gain (Loss) Recognized in Income   December 30, 2017   December 31, 2016   January 2, 2016   Location Foreign currency forward contracts   $ (207 ) $ (92 ) $ 935   Interest income and other, net Table of Contents Silicon Laboratories Inc. Notes to Consolidated Financial Statements (Continued) December 30, 201731, 2022 6. Derivative Financial Instruments (Continued) 6. Balance Sheet DetailsNon-designated Hedges Foreign Currency Forward Contracts The Company may use foreign currency forward contracts to reduce the earnings impact that exchange rate fluctuations have on non-U.S. dollar balance sheet exposures. The Company recognizes gains and losses on the foreign currency forward contracts in interest income and other, net in the Consolidated Statement of Income in the same period as the remeasurement loss and gain of the related foreign currency denominated asset or liability. The Company does not apply hedge accounting to these foreign currency forward contracts. As of December 31, 2022, the Company held no such foreign currency forward contracts. The fair value of the foreign contracts and contract gains and losses recognized in income were not material for any of the periods presented. 7. Supplemental Information The following tables show the details of selected Consolidated Balance Sheet items (in thousands): Accounts Receivable, Net​     December 30, 2017   December 31, 2016   Accounts receivable   $ 72,005   $ 75,035   Allowance for doubtful accounts     (638 )   (634 ) ​ ​ ​ ​ ​ ​ ​ ​   $ 71,367   $ 74,401   ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Inventories     December 30, 2017   December 31, 2016   Work in progress   $ 46,698   $ 40,755   Finished goods     26,434     18,823   ​ ​ ​ ​ ​ ​ ​ ​   $ 73,132   $ 59,578   ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Prepaid Expenses and Other Current Assets​   December 30, 2017   December 31, 2016   Distributor advances   $ 17,825   $ 40,205   Other   21,295   21,600   ​ ​ ​ ​ ​ ​ ​   $ 39,120   $ 61,805   ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​      December 31,      January 1, ​ ​ ​ ​ ​ ​ ​ ​ ​ 2022 ​ 2022 Work in progress ​ $ 75,112 ​ $ 36,078 Finished goods ​   25,305 ​   13,229 ​ ​ $ 100,417 ​ $ 49,307 ​ Property and Equipment ​ ​ ​ ​ ​ ​ ​ ​ ​      December 31,      January 1, ​ ​ 2022 ​ 2022 Buildings and improvements ​ $ 125,471 ​ $ 122,163 Equipment ​   62,304 ​   48,876 Computers and purchased software ​   55,065 ​   48,519 Leasehold interest in ground leases ​   23,840 ​   23,840 Leasehold improvements ​   14,209 ​   13,427 Furniture and fixtures ​   9,909 ​   10,794 ​ ​   290,798 ​   267,619 Accumulated depreciation ​   (138,782) ​   (121,103) ​ ​ $ 152,016 ​ $ 146,516 ​ Other Assets, net ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31,      January 1, ​      2022      2022 Equity-method investment* ​ $ 27,478 ​ $ 24,078 Other   ​ 67,275   ​ 53,761 ​ ​ $ 94,753 ​ $ 77,839 * The Company holds an 8% equity interest in China Walden Venture Investments III, a limited partnership. ​ F-19     December 30, 2017   December 31, 2016   Buildings and improvements   $ 96,196   $ 94,977   Equipment     59,836     57,677   Computers and purchased software     37,598     35,492   Leasehold interest in ground leases     23,840     23,840   Furniture and fixtures     5,691     5,484   Leasehold improvements     10,483     10,083   ​ ​ ​ ​ ​ ​ ​ ​     233,644     227,553   Accumulated depreciation     (105,962 )   (97,994 ) ​ ​ ​ ​ ​ ​ ​ ​   $ 127,682   $ 129,559   ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Table of Contents Silicon Laboratories Inc. Notes to Consolidated Financial Statements (Continued) December 30, 201731, 2022 7. Supplemental Information (Continued) 6. Balance Sheet Details (Continued) Other Current Liabilities     December 30, 2017   December 31, 2016   Accrued compensation and benefits   $ 33,631   $ 28,781   Accrued price protection credits     8,239     2,287   Other     31,489     23,482   ​ ​ ​ ​ ​ ​ ​ ​   $ 73,359   $ 54,550   ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Other Non-current Liabilities​   December 30, 2017   December 31, 2016   Non-current tax liabilities   $ 39,196   $ —   Software license accruals   12,152   14,436   Deferred tax liabilities   10,355   13,119   Other   16,159   15,136   ​ ​ ​ ​ ​ ​ ​   $ 77,862   $ 42,691   ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​      December 31,      January 1, ​ ​ ​ ​ ​ ​ ​ ​ ​ 2022 ​ 2022 Accrued compensation and benefits ​ $ 43,736 ​ $ 42,008 Income taxes payable ​ ​ 11,472 ​ ​ 73,771 Other ​   33,928 ​   41,273 ​ ​ $ 89,136 ​ $ 157,052 7.​ ​ ​ 8. Risks and Uncertainties Financial Instruments Financial instruments that potentially subject the Company to significant concentrations of credit risk consist primarily of cash equivalents, investments, accounts receivable notes receivable and derivatives. The Company places its cash equivalents and investments primarily in municipal bonds, money market funds, corporate bonds, variable-rate demand notes, U.S. government securities, agency bonds, asset-back securities, certificates of deposit,variable rate demand notes, Yankee bonds and commercial paper, auction-rate securities and international government bonds.paper. Concentrations of credit risk with respect to accounts receivable are primarily due to customers with large outstanding balances. The Company'sCompany’s customers that accounted for greater than 10% of accounts receivable consisted of the following:following distributors: ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ January 1,   ​      2022      2022   Arrow Electronics   29 % 28 %   Edom Technology ​ * ​ 18 %   ​ * Less than 10% of accounts receivable     December 30, 2017   December 31, 2016   Avnet     16 %   12 % Arrow Electronics     14 %   13 % Edom Technology     *     19 % * Less than 10% of accounts receivable The Company performs periodic credit evaluations of its customers'customers’ financial condition and generally requires no collateral from its customers. The Company provides an allowance for potentialexpected credit losses based upon the net amount expected collectibility ofto be collected on such receivables. Losses have not been significant for any of the periods presented. Table of Contents Silicon Laboratories Inc. Notes to Consolidated Financial Statements December 30, 2017 (Continued) 7. Risks and Uncertainties (Continued)         The Company holds two notes receivable for $1.5 million and $0.7 million from a privately held company, which were recorded in other assets, net in the Consolidated Balance Sheet. The Company holds an equity investment in another privately held company with a carrying value of $3.8 million and $2.8 million as of December 30, 2017 and December 31, 2016, respectively. The investment is accounted for using the cost method and was recorded in other assets, net in the Consolidated Balance Sheet. As a result of its use of derivative instruments, the Company is exposed to the risk that its counterparties will fail to meet their contractual obligations. To mitigate this counterparty credit risk, the Company has a policy to enter into contracts with only selected major financial institutions. The Company periodically reviews and re-assesses the creditworthiness of such counterparties based on a variety of factors. Distributor Advances On sales to distributors, the Company'sCompany’s payment terms often require the distributor to initially pay amounts owed to the Company for an amount in excess of their ultimate cost. The Company'sCompany’s sales price to its distributors may be higher than the amount that the distributors will ultimately owe the Company because distributors often negotiate price reductions after purchasing the product from the Company and such reductions are often significant. These negotiated price discounts are not granted until the distributor sells the product to the end customer, which may occur after the distributor has paid the original invoice amount to the Company. Payment of invoices prior to receiving an associated discount can have an adverse impact on the working capital of the Company'sCompany’s distributors. Accordingly, the Company has entered into agreements with certain distributors whereby it advances cash to the distributors to reduce the distributor'sdistributor’s working capital requirements. The advance amounts are based on the distributor'sdistributor’s inventory balance, and are adjusted quarterly. Such amounts are recorded in prepaid expenses and other current assets in the Consolidated Balance Sheet. The terms of these advances are set forth in binding legal agreements and are unsecured, bear no interest on unsettled balances and are due upon demand. The agreements governing these advances can be cancelled by the Company at any time. SuppliersF-20 Table of Contents Silicon Laboratories Inc. Notes to Consolidated Financial Statements (Continued) December 31, 2022 8. Risks and Uncertainties (Continued) Suppliers A significant portion of the Company'sCompany’s products are fabricated by Taiwan Semiconductor Manufacturing Co. (TSMC) or TSMC's affiliates and Semiconductor Manufacturing International Corporation (SMIC). The inability of TSMC or SMIC to deliver wafers to the Company on a timely basis could impact the production of the Company'sCompany’s products for a substantial period of time, which could have a material adverse effect on the Company'sCompany’s business, financial condition, and results of operations.operations and cash flows. Customers The Company sells directly to end customers, distributors and contract manufacturers. Although the Company actually sells the products to, and is paid by, distributors and contract manufacturers, the Company refers to the end customer as its customer. None of the Company'sCompany’s end customers or Table of Contents Silicon Laboratories Inc. Notes to Consolidated Financial Statements December 30, 2017 (Continued) 7. Risks and Uncertainties (Continued) contract manufacturers accounted for greater than 10% of revenue during fiscal 2017, 20162022, 2021 or 2015.2020. The Company'sCompany’s distributors that accounted for greater than 10% of revenue consisted of the following: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended   ​ ​ December 31, ​ January 1, ​ January 2,   ​      2022      2022      2021   Arrow Electronics   33 % 28 %   28 %   Edom Technology   17 % 18 %   19 %   Sekorm ​ * ​ 12 %   14 %       Year Ended       December 30, 2017   December 31, 2016   January 2, 2016   Edom Technology     19 %   17 %   20 % Avnet     14 %   13 %   12 % Arrow Electronics     12 %   11 %   *   * Less than 10% of revenue * Less than 10% of revenue 8. Acquisitions​ Sigma Designs​ 9. Acquisition Redpine Signals On December 7, 2017, the Company entered into an agreement to acquire Sigma Designs, Inc., a California corporation. Sigma Designs provides solutions for the connected home including Z-Wave, an IoT technology for smart home solutions. Under the terms of the agreement, the Company would have acquired all of the outstanding capital stock of Sigma Designs in exchange for $7.05 per share in a cash transaction valued at approximately $282 million. This acquisition is subject to certain closing conditions. In the event that certain of such closing conditions are not met, the parties have agreed that Sigma Designs would instead sell its Z-Wave business to the Company for $240 million, contingent upon approval by Sigma Designs' stockholders.         On January 23, 2018, Sigma Designs announced that due to the closing conditions for the acquisition of the entirety of Sigma Designs not being satisfied, the parties would move forward with the sale of the Z-Wave business to the Company in an asset sale, subject to approval by Sigma Designs' shareholders. Zentri         On January 20, 2017,April 28, 2020, the Company acquired Zentri, Inc., a private company. Zentri is an innovator in low-power, cloud-connectedthe Wi-Fi technologiesand Bluetooth business of Redpine Signals for the IoT.$316.8 million. The Company acquired Zentribelieves the acquisition accelerated its roadmap for approximately $18.1 million, including initial cash consideration of approximately $14.3 million,Wi-Fi and potential additional consideration with an estimated fair value of approximately $3.8 million at the date of acquisition. The amount of potential additional consideration is up to approximately $10.0 million based on fiscal 2017 revenue from certain Zentri products.Bluetooth silicon and software solutions.         The purchase price was allocated as follows: intangible assets—$6.7 million; goodwill—$12.1 million; and other net liabilities—$0.7 million. The goodwill is not deductible for tax purposes. Pro forma information related to this acquisition has not been presented because it would not be materially different from amounts reported.​ Micrium​         On October 3, 2016, the Company acquired Micrium, a private company. Micrium is a supplier of real-time operating system (RTOS) software for the IoT. The Company acquired Micrium for​ ​ ​ F-21 Table of Contents Silicon Laboratories Inc. Notes to Consolidated Financial Statements (Continued) December 30, 2017 (Continued)31, 2022 8. Acquisitions (Continued) approximately $12.4 million, consisting of approximately $8.2 million in cash and $4.2 million in stock consideration. An additional approximately $1.0 million in stock consideration was accounted for as a transaction separate from the business combination based on its economic substance and will be recorded as post-combination compensation expense over four years.         The purchase price was allocated as follows: intangible assets—$9.5 million; goodwill—$3.4 million; and other net assets—$(0.5) million. A portion of the goodwill is deductible for tax purposes.         Pro forma information related to this acquisition has not been presented because it would not be materially different from amounts reported. The Company recorded approximately $0.3 million of acquisition-related costs in selling, general and administrative expenses during fiscal 2016. Telegesis         On November 20, 2015, the Company acquired Telegesis (UK) Limited, a limited liability company incorporated in England and Wales. Telegesis is a supplier of wireless mesh networking modules based on the Company's Zigbee and Thread technology, targeting applications in the smart energy, home automation and industrial automation markets. The Company acquired Telegesis for cash consideration of $19.9 million.         The Company believes that this strategic acquisition accelerates its roadmap for Zigbee and Thread modules. This factor contributed to a purchase price that was in excess of the fair value of the net assets acquired and, as a result, the Company recorded goodwill. The goodwill is not deductible for tax purposes. The purchase price was allocated as follows (in thousands):     Amount   Weighted-Average Amortization Period (Years) Intangible assets:           In-process research and development   $ 10   Not amortized Developed technology     4,980   7 Customer relationships     2,000   3 Trademarks     400   3 ​ ​ ​ ​ ​ ​     7,390     Cash and cash equivalents     717     Other current assets     4,545     Goodwill     9,344     Other non-current assets     131     Current liabilities     (689 )   Non-current deferred tax liabilities     (1,508 )   ​ ​ ​ ​ ​ ​ Total purchase price   $ 19,930     ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Table of Contents Silicon Laboratories Inc. Notes to Consolidated Financial Statements December 30, 2017 (Continued) 8. Acquisitions (Continued)         Pro forma information related to this acquisition has not been presented because it would not be materially different from amounts reported. The Company recorded approximately $0.5 million of acquisition-related costs in selling, general and administrative expenses during fiscal 2015. Bluegiga         On January 30, 2015, the Company acquired Bluegiga Technologies Oy, a private company based in Finland. Bluegiga is a provider of Bluetooth Smart, Bluetooth Classic and Wi-Fi modules and software stacks for a multitude of applications in the IoT, industrial automation, consumer electronics, automotive, retail, residential, and health and fitness markets. The Company acquired Bluegiga for cash consideration of approximately $58.0 million.         The Company believes that this strategic acquisition will accelerate its entry into the wireless module market. This factor contributed to a purchase price that was in excess of the fair value of the net assets acquired and, as a result, the Company recorded goodwill. The goodwill is not deductible for tax purposes. The purchase price was allocated as follows (in thousands):     Amount   Weighted-Average Amortization Period (Years) Intangible assets:           In-process research and development   $ 5,710   Not amortized Developed technology     12,190   8 Customer relationships     6,670   4 Trademarks     880   3 ​ ​ ​ ​ ​ ​     25,450     Cash and cash equivalents     1,132     Other current assets     6,156     Goodwill     34,597     Other non-current assets     208     Current liabilities     (3,289 )   Non-current deferred tax liabilities     (3,780 )   Long-term debt     (2,232 )   Other non-current liabilities     (220 )   ​ ​ ​ ​ ​ ​ Total purchase price   $ 58,022     ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​         In-process research and development (IPR&D) represents acquired technology that had not achieved technological feasibility as of the acquisition date and had no alternative future use. The IPR&D recorded in connection with the acquisition of Bluegiga consisted primarily of Bluetooth Smart Ready and Bluetooth Smart modules and software stacks. The fair value of these technologies was determined using the income approach. The discount rate applicable to the cash flows was 16.1%.         Pro forma information related to this acquisition has not been presented because it would not be materially different from amounts reported. The Company recorded approximately $1.2 million of acquisition-related costs in selling, general and administrative expenses during fiscal 2015. Table of Contents Silicon Laboratories Inc. Notes to Consolidated Financial Statements December 30, 2017 (Continued) 8. Acquisitions (Continued) Energy Micro         On July 1, 2013, the Company acquired Energy Micro. In fiscal 2015, the Company made the following payments in connection with the Energy Micro acquisition: (a) approximately $20.0 million was paid for the release of the holdback; and (b) approximately $6.3 million was paid for the first annual period of the earn-out. Approximately $1.8 million of the earn-out payment was recorded as compensation expense during fiscal 2014. The remaining approximately $4.5 million of the earn-out payment represented additional consideration.         On March 11, 2016, the Company entered into an agreement with Energy AS, the former parent of Energy Micro. The agreement settled the amount of the earn-out to be paid for fiscal 2015 through 2018. The total settlement amount was approximately $16.0 million (in lieu of potential payments of up to $26.7 million) and was paid on May 11, 2016. The settlement amount represented approximately $11.4 million of additional consideration and approximately $4.6 million of compensation expense (of which approximately $2.7 million was recorded in fiscal 2016 and approximately $1.9 million was recorded in fiscal 2015). The compensation expense recorded in fiscal 2016 was offset in part by a gain of approximately $2.7 million to adjust the consideration portion of the earn-out to fair value due to the settlement. 9. Goodwill and10. Other Intangible Assets, Net Goodwill​         The following summarizes the activity in goodwill for the years ended December 30, 2017 and December 31, 2016 (in thousands):     Year Ended       December 30, 2017   December 31, 2016   Beginning balance   $ 276,130   $ 272,722   Additions due to business combinations     12,097     3,408   ​ ​ ​ ​ ​ ​ ​ ​ Ending balance   $ 288,227   $ 276,130   ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Table of Contents Silicon Laboratories Inc. Notes to Consolidated Financial Statements December 30, 2017 (Continued) 9. Goodwill and Other Intangible Assets (Continued) Other Intangible Assets The gross carrying amount and accumulated amortization of other intangible assets, net are as follows (in thousands):         December 30, 2017   December 31, 2016       Weighted-Average Amortization Period (Years)       Gross Amount   Accumulated Amortization   Gross Amount   Accumulated Amortization   Core and developed technology     9   $ 161,700   $ (89,442 ) $ 157,321   $ (70,181 ) Customer relationships     7     25,470     (16,180 )   24,970     (11,356 ) Patents     6     3,000     (2,750 )   3,000     (2,250 ) Trademarks     7     3,690     (2,344 )   3,690     (1,629 ) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total     8   $ 193,860   $ (110,716 ) $ 188,981   $ (85,416 ) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Weighted-Average ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Amortization ​ December 31, 2022 ​ January 1, 2022 ​ ​ Period ​ Gross ​ Accumulated ​ Gross ​ Accumulated ​      (Years)      Amount      Amortization      Amount      Amortization Developed technology   8 ​ $ 211,217 ​ $ (126,424) ​ $ 238,092 ​ $ (124,337) Trademarks   12 ​   910 ​   (796) ​   11,471 ​   (8,740) Customer relationships   — ​   — ​   — ​   27,450 ​   (24,958) Total intangible assets ​ 8 ​ $ 212,127 ​ $ (127,220) ​ $ 277,013 ​ $ (158,035) ​ Gross intangible assets increased $6.7decreased $64.9 million in fiscal 2017 for assets added due to the acquisition of Zentri. This increase was offset by $1.8 million2022 due to the removal of fully amortized assets.         AmortizationThe following table presents details of intangible asset amortization expense related to intangible assets for fiscal 2017, 2016 and 2015 was $27.1 million, $27.3 million and $26.5 million, respectively. recognized in the Consolidated Statements of Income (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended ​ ​ December 31, ​ January 1, ​ January 2, ​      2022      2022      2021 Research and development ​ $ 28,962 ​ $ 32,319 ​ $ 31,351 Selling, general and administrative ​ ​ 5,109 ​   12,186 ​   11,218 ​ ​ $ 34,071 ​ $ 44,505 ​ $ 42,569 ​ The estimated aggregate amortization expense for intangible assets subject to amortization for each of the five succeeding fiscal years is as follows (in thousands): ​ ​ ​ ​ ​ Fiscal Year      ​      2023 ​ $ 25,374 2024 ​ ​ 23,034 2025 ​ ​ 13,369 2026 ​ ​ 9,178 2027 ​ ​ 9,178 ​ ​ F-22 Table of Contents Silicon Laboratories Inc. Notes to Consolidated Financial Statements (Continued) December 31, 2022 Fiscal Year       2018   $ 24,034   2019     18,292   2020     15,797   2021     11,408   2022     7,905   10.11. Debt 1.375%0.625% Convertible Senior Notes On March 6, 2017,June 1, 2020, the Company completed a private offeringplacement of $400$535 million principal amount convertible senior notes (the "Notes"“2025 Notes”). The 2025 Notes bear interest semi-annually at a rate of 1.375%0.625% per year and will mature on March 1, 2022, unless repurchased, redeemed or converted at an earlier date. June 15, 2025. The Company used $72.5 million of the proceeds to pay off the remaining balance of its Amended Credit Agreement.         The2025 Notes are convertible at an initiala conversion rate of 10.77448.1980 shares of common stock per $1,000 principal amount of the 2025 Notes, or approximately 4.34.4 million shares of common stock, which is equivalent to a conversion price of approximately $92.81$121.98 per share. The conversion rate is subject to adjustment under certain circumstances. Holders may convert the 2025 Notes under the following circumstances: during any calendar quarter after the calendar quarter endingended on JuneSeptember 30, 20172020 if the closing price of the Company'sCompany’s common stock for at least 20 trading days in the 30 consecutive trading days ending on the last trading day of the preceding calendar quarter is greater than or equal to $159.51 per share, representing 130% Table of Contents Silicon Laboratories Inc. Notes to Consolidated Financial Statements December 30, 2017 (Continued) 10. Debt (Continued) of the conversion price of the Notes;2025 Notes (“the Sales Price Trigger”); during the five business day period after any ten consecutive trading day period (the "measurement period"“measurement period”) in which the trading price per $1,000 principal amount of notes for each trading day of the measurement period was less than 98% of the product of the closing sale price of our common stock and the conversion rate on each such trading day; if specified distributions or corporate events occur; if the 2025 Notes are called for redemption; or at any time after December 1, 2021.March 15, 2025. The Company may redeem all or any portion of the 2025 Notes, at its option, on or after March 6, 2020,June 20, 2023, if the last reported sale price of the Company'sCompany’s common stock has been at least 130% of the conversion price then in effect for at least 20 trading days during any 30 consecutive trading day period. UponAs of January 1, 2022, upon conversion, the 2025 Notes maycould be settled in cash, shares of the Company'sCompany’s common stock or a combination of cash and shares, at the Company'sCompany’s election. On January 2, 2022, the Company irrevocably elected cash settlement for the principal amount of the 2025 Notes. The Company intends to settle any excess value in shares in the event of a conversion. The 2025 Notes were classified as current liabilities at January 1, 2022 due to the Sales Price Trigger condition being met on January 1, 2022. The Sales Price Trigger condition was not met during fiscal 2022, therefore the net carrying amount of the 2025 Notes is now classified as a non-current liability. The principal balance of the 2025 Notes was initially separated into liability and equity components, and was recorded initially at fair value. The excess of the principal amount of the liability component over its carrying amount representsrepresented the debt discount, which iswas amortized to interest expense over the term of the 2025 Notes using the effective interest method. The carrying amountWith the Company’s adoption of ASU 2020-06 in fiscal 2022, the principal balance of the 2025 Notes is no longer separated between liability component was estimated by discountingand equity components. This resulted in an increase to the contractual cash flowscarrying value of similar non-convertibleits convertible debt, atrepresenting the unamortized debt discount as of January 2, 2022, with an appropriate market rate at the date of issuance.offsetting reduction in stockholders’ equity. The Company incurred debt issuance costs of approximately $10.6$10.4 million, which waswere allocated to the liability and equity components in proportion to the allocation of the proceeds. The costs allocatedUpon the adoption of ASU 2020-06, the equity component was reclassified to liabilities and remeasured to reflect cumulative amortization since the liability component are being amortized as interest expense over the termissuance of the Notes using the effective interest method.2025 Notes. The carrying amount of the 2025 Notes consisted of the following (in thousands):     December 30, 2017   Liability component         Principal   $ 400,000   Unamortized debt discount     (50,499 ) Unamortized debt issuance costs     (7,622 ) ​ ​ ​ ​ ​ Net carrying amount   $ 341,879   ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Equity component         Net carrying amount   $ 57,735   ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​      December 31,      January 1, ​ ​ 2022 ​ 2022 Liability component ​ ​      ​    Principal ​ $ 534,980 ​ $ 535,000 Unamortized debt discount ​   — ​   (78,519) Unamortized debt issuance costs ​   (5,407) ​   (5,882) Net carrying amount ​ $ 529,573 ​ $ 450,599 ​ ​ ​ ​ ​ ​ ​ Equity component ​   ​ ​   ​ Net carrying amount ​ $ — ​ $ 107,928 ​ The liability component of the 2025 Notes is recorded in convertible debt on the Consolidated Balance Sheet. ThePrior to the Company’s adoption of ASU 2020-06, the equity component of the 2025 Notes iswas recorded in additional paid-in capital.stockholders’ equity. The effective interest rate for the liability component was 4.75%5.336%. As of December 30, 2017,31, 2022, the remaining period over which the debt discount and debt issuance costs will be amortized was 4.22.5 years. F-23 Table of Contents Silicon Laboratories Inc. Notes to Consolidated Financial Statements (Continued) December 30, 2017 (Continued)31, 2022 10.11. Debt (Continued) Interest expense related to the NotesCompany’s convertible debt was comprised of the following (in thousands):     Year Ended       December 30, 2017   Contractual interest expense   $ 4,492   Amortization of debt discount     8,816   Amortization of debt issuance costs     1,330   ​ ​ ​ ​ ​   $ 14,638   ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended ​      ​ December 31,      January 1,      January 2, ​ ​ ​ 2022 ​ 2022 ​ 2021 Contractual interest expense ​ $ 3,346 ​ $ 3,662 ​ $ 5,530 Amortization of debt discount ​ ​ — ​   21,112 ​   19,375 Amortization of debt issuance costs ​ ​ 2,003 ​   1,655 ​   2,058 ​ ​ $ 5,349 ​ $ 26,429 ​ $ 26,963 ​ Amended Credit AgreementFacility         On July 31, 2012, theThe Company and certain of its domestic subsidiaries (the "Guarantors"“Guarantors”) entered intohave a $230$400 million five-year Credit Agreement (the "Credit Agreement"), which consisted ofrevolving credit facility with a $100 million Term Loan Facility and a $130 million Revolving Credit Facility. On July 24, 2015, the Company and the Guarantors amended the Credit Agreement (the "Amended Credit Agreement") in order to, among other things, increase the borrowing capacity under the Revolving Credit Facility to $300 million (the "Credit Facility"), eliminate the Term Loan Facility and extend the maturity date to five years from the closing date. On July 24, 2015, the Company borrowed $82.5 million under the Amended Credit Agreement and paid off the remaining balance of its Term Loan Facility. In connection with the Company's offering of the Notes, it entered into a second amendment to the Credit Agreement (the "Second Amended Credit Agreement") on February 27, 2017 and paid off the remaining balance of $72.5 million. August 7, 2024. The Second Amended Credit Agreement retained the key terms and provisions of the first Amended Credit Agreement, includingcredit facility includes a $25 million letter of credit sublimit and a $10 million swingline loan sublimit. The Company also has an option to increase the size of the borrowing capacity by up to the greater of an aggregate of $200$250 million in additional commitments,and 100% of EBITDA of the last four fiscal quarters, plus an amount that would not cause a secured leverage ratio (funded debt secured by assets/EBITDA) to exceed 3.25 to 1.00, subject to certain conditions. The Revolving Credit Facility,credit facility, other than swingline loans, will bear interest at the Eurodollar rate plus an applicable margin or, at the option of the Company, a base rate (defined as the highest of the Wells Fargo prime rate, the Federal Funds rate plus 0.50% and the Eurodollar Base Rate plus 1.00%) plus an applicable margin. Swingline loans accrue interest at the base rate plus the applicable margin for base rate loans. The applicable margins for the Eurodollar rate loans range from 1.25%1.00% to 2.00%1.75% and for base rate loans range from 0.25%0.00% to 1.00%0.75%, depending in each case, on the leverage ratio as defined in the Agreement.credit facility. The Second Amended Credit Agreementcredit facility contains various conditions, covenants and representations with which the Company must be in compliance in order to borrow funds and to avoid an event of default, including financial covenants that the Company must maintain a net leverage ratio (funded debt/indebtedness/EBITDA) of no more than 3.004.25 to 1, a secured leverage ratio of no more than 3.50 to 1, and a minimum fixed chargeinterest coverage ratio (EBITDA/interest payments, income taxes and capital expenditures)payments) of no less than 1.252.50 to 1. As of December 30, 2017,31, 2022, the Company was in compliance with all covenants of the Second Amended Credit Agreement.credit facility. The Company'sCompany’s obligations under the Second Amended Credit Agreementcredit facility are guaranteed by the Guarantors and are secured by a security interest in substantially all assets of the Company and the Guarantors. As of December 31, 2022, no amounts were outstanding on the credit facility. ​ F-24 Table of Contents Silicon Laboratories Inc. Notes to Consolidated Financial Statements (Continued) December 30, 2017 (Continued)31, 2022 12. Leases 11. Stockholders' Equity Common Stock The Company issued 0.8leases certain facilities under operating lease agreements that expire at various dates through 2030. Some of these arrangements contain renewal options and require the Company to pay taxes, insurance and maintenance costs. Lease costs for operating leases were $7.3 million, shares of common stock$7.4 million and $5.6 million during fiscal 2017.2022, 2021 and 2020, respectively. Share Repurchase ProgramsSupplemental Lease Information ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​      Consolidated Balance      December 31,      January 1, Balance Sheet Information (in thousands) ​ Sheet Classification ​ 2022 ​ 2022 Operating lease right-of-use assets ​ Other assets, net ​ $ 24,717 ​ $ 27,896 Operating lease liabilities ​ Other current liabilities ​ $ 6,281 ​ $ 6,653 Operating lease liabilities ​ Other non-current liabilities ​ $ 18,009 ​ $ 22,518 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended ​      December 31,      January 1, Cash Flow Information (in thousands) ​ 2022 ​ 2022 Cash paid for operating lease liabilities   $ 7,518 ​ $ 7,138 Right-of-use assets obtained in exchange for operating lease obligations   $ 3,198 ​ $ 6,335 ​ ​ ​ ​ ​ ​ ​ ​      December 31,      January 1, Operating Lease Information ​ 2022 ​ 2022 Weighted-average remaining lease term   5.1 years ​ 5.9 years ​ Weighted-average discount rate   3.96 % 3.83 % ​ The Boardmaturities of Directors authorized the following share repurchase programsoperating lease liabilities as of December 31, 2022 were as follows (in thousands): ​ ​ ​ ​ ​ Fiscal Year      ​ ​ 2023 ​ $ 7,058 2024 ​ ​ 5,882 2025 ​ ​ 4,490 2026 ​ ​ 3,221 2027 ​ ​ 2,438 Thereafter ​ ​ 4,706 Total lease payments ​ ​ 27,795 Less imputed interest ​ ​ (3,505) Total lease liabilities ​ $ 24,290 ​ Lease income The Company leases a portion of its headquarter facilities to other tenants. Lease income from operating leases was $6.2 million, $4.9 million and $3.2 million during fiscal 2022, 2021 and 2020, respectively. ​ F-25 Table of Contents Silicon Laboratories Inc. Notes to Consolidated Financial Statements (Continued) December 31, 2022 Program Authorization Date   Program Termination Date   Program Amount   October 2017   December 2018   $ 100,000   January 2017   December 2017   $ 100,000   August 2015   December 2016   $ 100,000   October 2014   December 2015   $ 100,000           These programs allow for repurchases to be made13. Commitments and Contingencies Litigation The Company is involved in various legal proceedings that have arisen in the open market ornormal course of business. While the ultimate results cannot be predicted with certainty, the Company does not expect them to have a material adverse effect on its Consolidated Financial Statements. The patent infringement actions initiated by Bell Semiconductor, LLC were resolved in private transactions, including structured or accelerated transactions, subject to applicable legal requirements and market conditions. The Company did not repurchase any shares of its common stock during fiscal 2017. December 2022. ​ 14. Share Repurchases The Company repurchased 0.96.9 million shares, 6.5 million shares and 1.70.2 million shares of its common stock for $40.5$887.6 million, $1.15 billion and $71.4$16.3 million during fiscal 20162022, 2021 and 2015,2020, respectively. TheseShares repurchased in fiscal 2021 included purchases of 4.0 million shares were retired upon repurchase.through a tender offer, 1.7 million shares through an accelerated share repurchase agreement and 0.8 million shares through the Company’s existing share repurchase program. Reclassifications From Accumulated Other Comprehensive Income (Loss)​ 15. Revenues The Company groups its products as Industrial & Commercial or Home & Life based on the target markets they address. The following table summarizes the effect on net income from reclassifications out of accumulated other comprehensive income (loss)represents revenue by product category (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended ​      December 31, ​ January 1, ​ January 2, ​ ​ 2022      2022      2021 Industrial & Commercial ​ $ 573,725 ​ $ 377,401 ​ $ 264,649 Home & Life ​   450,381 ​   343,459 ​   246,279 ​ ​ $ 1,024,106 ​ $ 720,860 ​ $ 510,928 ​ A portion of the Company’s sales are made to distributors under agreements allowing certain rights of return and/or price protection related to the final selling price to the end customers. These factors impact the timing and uncertainty of revenues and cash flows. The Company recognized revenue of $30.1 million, $12.4 million and $11.5 million during fiscal 2022, 2021 and 2020, respectively, from performance obligations that were satisfied in previous reporting periods. The following disaggregates the Company’s revenue by sales channel (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended ​      December 31,      January 1,      January 2, ​   2022   2022   2021 Distributors ​ $ 829,373 ​ $ 584,010 ​ $ 416,606 Direct customers ​ ​ 194,733 ​   136,850 ​   94,322 ​ ​ $ 1,024,106 ​ $ 720,860 ​ $ 510,928 ​ ​ F-26     Year ended   Reclassification   December 30, 2017   December 31, 2016   January 2, 2016   Gains (losses) on cash flow hedges to:                     Interest expense   $ 1,808   $ (249 ) $ (499 ) Income tax (expense) benefit     (633 )   87     175   ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total reclassifications   $ 1,175   $ (162 ) $ (324 ) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Table of Contents Silicon Laboratories Inc. Notes to Consolidated Financial Statements (Continued) December 30, 2017 (Continued)31, 2022 11. Stockholders' Equity (Continued) Income Tax Allocated to the Components of Other Comprehensive Income (Loss)         The income tax effects of the components of other comprehensive income (loss) were as follows (in thousands):     Year ended   Income tax (expense) benefit on:   December 30, 2017   December 31, 2016   January 2, 2016   Net changes to available-for-sale securities:                     Unrealized gains (losses) arising during the period   $ 255   $ 63   $ 145   Net changes to cash flow hedges:                     Unrealized gains (losses) arising during the period     —     (513 )   255   Reclassification for losses included in net income     633     (87 )   (171 ) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​   $ 888   $ (537 ) $ 229   ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 12.16. Stock-Based Compensation         In fiscal 2009, the stockholders of theThe Company approvedhas two active stock plans, the 2009 Stock Incentive Plan (the "2009 Plan"“2009 Plan”) and the 2009 Employee Stock Purchase Plan (the "2009 Purchase Plan"“2009 ESPP”). In fiscal 2017, the stockholders of the Company that have been amended and approved amendmentsby shareholders from time to bothtime. ● The 2009 Plan allows for grants of stock options, stock appreciation rights, performance shares, performance stock units, restricted stock units (RSUs), restricted stock awards (RSAs), performance-based stock units (PSUs) and other awards (collectively, “awards”). All awards deduct one share from the 2009 Plan shares available for issuance for each share granted. Awards granted under the 2009 Plan contain vesting provisions mostly ranging from three to four years. To the extent awards granted under the 2009 Plan terminate, expire, or lapse for any reason, or are settled in cash, shares subject to such awards will again be available for grant. ● The 2009 ESPP allows eligible employees to purchase a limited number of shares of the Company’s common stock at no less than 85% of the fair market value of a share of common stock at prescribed purchase intervals during an offering period. Each offering period is comprised of a series of one or more successive and/or overlapping purchase intervals and has a maximum term of 27 months. 2009 Plan and the 2009 Purchase Plan. These amendments authorized additional shares of common stock for issuance, to comply with changes in applicable law, improve the Company's corporate governance and to implement other best practices. The amended plans are currently effective. 2009 Stock Incentive Plan         Under the 2009 Plan, the following may be granted: stock options, stock appreciation rights, performance shares, performance stock units, RSUs, restricted stock awards (RSAs), performance-based awards and other awards (collectively, all such grants are referred to as "awards"). The fiscal 2017 amendments to the 2009 Plan created a single share pool. All awards now deduct one share from the 2009 Plan shares available for issuance for each share granted. Awards granted under the 2009 Plan generally contain vesting provisions ranging from three to four years. The exercise price of stock options offered under the 2009 Plan may not be less than 100% of the fair market value of a share of our common stock on the date of grant. To the extent awards granted under the 2009 Plan terminate, expire or lapse for any reason, or are settled in cash, shares subject to such awards will again be available for grant. 2000 Stock Incentive Plan         In fiscal 2000, the Company's Board of Directors and stockholders approved the 2000 Plan. The 2000 Plan contains programs for (i) the discretionary granting of stock options to employees, non-employee board members and consultants for the purchase of shares of the Company's common stock, (ii) the discretionary issuance of common stock directly (as granted under direct issuance shares in RSAs and RSUs), (iii) the granting of special below-market stock options to executive officers and other highly compensated employees of the Company for which the exercise price can be paid using Table of Contents Silicon Laboratories Inc. Notes to Consolidated Financial Statements December 30, 2017 (Continued) 12. Stock-Based Compensation (Continued) payroll deductions and (iv) the automatic issuance of stock options to non-employee board members. The discretionary issuance of common stock, RSUs and stock options generally contain vesting provisions ranging from three to eight years. If permitted by the Company, stock options can be exercised immediately and, similar to the direct issuance shares, are subject to repurchase rights which generally lapse in accordance with the vesting schedule. The repurchase rights provide that upon certain defined events, the Company can repurchase unvested shares at the price paid per share. The term of each stock option is no more than ten years from the date of grant. Stock Grants and Modifications The Company granted to its employees 0.70.5 million, 1.30.6 million and 0.90.7 million shares of full value awards and 0.0 million, 0.2 million, and 0.0 million stock options from the 2009 Plan during fiscal 2017, 20162022, 2021 and 2015,2020, respectively.         The Company recorded $0.9 million and $2.3 million in selling, general and administrative expense during fiscal 2016 and 2015, respectively, in connection with the modifications of certain equity awards. The modifications were pursuant to three employee terminations in fiscal 2016 and two employee terminations in fiscal 2015. There were no other significant modifications made to any stock grants during fiscal 2017, 2016 or 2015.         Included in the full Full value awards granted under the 2009 Plan in fiscal 2017, 2016include RSUs, MSUs awards and 2015 were a total of 54 thousand, 65 thousand and 89 thousand market-based stock awards, respectively. The awards, also known as PSUs. MSUs provide the rights to acquire a number of shares of common stock for no cash consideration based upon achievement of specified levels of market conditions. The requisite servicemeasurement period for these MSUs is also the vesting period, which is generally three years. TheMSUs granted in 2020 measured the relative performance criteria of the MSUs measure the difference between the total stockholders'stockholders’ return of the Company against that of the Philadelphia Semiconductor Sector Total Return Index.a selected benchmarked group of companies. The Company granted no MSUs in fiscal 2022 and 2021 and 82,000 MSUs in fiscal 2020.         Also included in the full value awards granted under the 2009 Plan during fiscal 2017 and fiscal 2016 were 54 thousand and 65 thousand performance-based stock awards, respectively. The awards, also known as PSUs provide for the rights to acquire a number of shares of common stock for no cash consideration based upon the achievement of specified revenue or profitability objectives during the year. The requisite serviceperformance period forof these PSUs is approximately three years from the date of grant. The Company granted 52,078 and 116,809 PSUs in fiscal 2022 and 2021, respectively, and no PSUs in fiscal 2020. 2009 Employee Stock Purchase PlanESPP The rights to purchase common stock granted under the 2009 Purchase PlanESPP are intended to be treated as either (i) purchase rights granted under an "employee“employee stock purchase plan,"” as that term is defined in Section 423(b) of the Internal Revenue Code (the "423(b) Plan"“423(b) Plan”), or (ii) purchase rights granted under an employee stock purchase plan that is not subject to the terms and conditions of Section 423(b) of the Internal Revenue Code (the "Non-423(b) Plan"“Non-423(b) Plan”). The Company will retain the discretion to grant purchase rights under either the 423(b) Plan or the Non-423(b) Plan. Eligible employees may purchase a limited number of shares of the Company's common stock at no less than 85% of the fair market value of a share of common stock at prescribed purchase intervals during an offering period. Each offering period will be comprised of a series of one or more successive and/or overlapping purchase intervals and has a maximum term of 24 months. During fiscal 2017, 20162022, 2021 and 2015,2020, the Company issued 239 thousand, 224 thousand109,000, 146,000 and 210 thousand177,000 shares, respectively, under the Table of Contents Silicon Laboratories Inc. Notes to Consolidated Financial Statements December 30, 2017 (Continued) 12. Stock-Based Compensation (Continued) 2009 Purchase PlanESPP to its employees. The weighted-average fair value for purchase rights granted in fiscal 20172022 under the 2009 Purchase PlanESPP was $19.55$37.70 per share. ​ F-27 Table of Contents Silicon Laboratories Inc. Notes to Consolidated Financial Statements (Continued) December 31, 2022 16. Stock-Based Compensation (Continued) Accounting for Stock-Based Compensation Stock-based compensation costs are based on the fair values on the date of grant for stock awards and stock optionsunder the 2009 Plan, and on the date of enrollment for grants under the employee stock purchase plans.2009 ESPP. The fair values of stock awards (such as RSUs, PSUs and RSAs) are estimated based on their intrinsic values. The fair values of MSUs are estimated using a Monte Carlo simulation. The fair values of stock options and employee stock purchase plansgrants under the 2009 ESPP are estimated using the Black-Scholes option-pricing model. The Black-Scholes valuation calculation requiresfair values of all such stock-based grants are generally amortized on a straight-line basis over the Company to estimate key assumptions such as future stock price volatility, expected terms, risk-free rates and dividend yield. Expected stock price volatility is based upon a combination of both historical volatility and implied volatility derived from traded options on the Company's stock in the marketplace. Expected term is derived from an analysis of historical exercises and remaining contractual life of options. The risk-free rate is based on the U.S. Treasury yield curve in effect at the time of grant. The Company has never paid cash dividends and does not currently intend to pay cash dividends, thus it has assumed a 0% dividend yield.         The Monte Carlo simulation used to calculate the fair valuevesting period of the MSUs simulates the present value of the potential outcomes of future stock prices of the Company and the Philadelphia Semiconductor Sector Total Return Index over the requisite service period. The projection of stock prices are based on the risk-free rate of return, the volatilities of the stock price of the Company and the Index, and the correlation of the stock price of the Company with the Index.grants. The Company estimates potential forfeitures of stock grants and adjusts compensation cost recorded accordingly. The estimate of forfeitures will be adjusted over the requisite service period to the extent that actual forfeitures differ, or are expected to differ, from such estimates. Changes in estimated forfeitures are recognized through a cumulative catch-up adjustment in the period of change and will also impact the amount of stock-based compensation expense to be recognized in future periods.         The fair values of stock options and RSUs are amortized as compensation expense on a straight-line basis over the vesting period of the grants. The fair values of RSAs are fully expensed in the period of grant, when shares are immediately issued with no vesting restrictions. The fair values of MSUs are amortized as compensation expense on a straight-line basis over the performance and service periods of the grants. The fair values of PSUs are amortized as compensation expense on a straight-line basis over the performance period when the performance is probable of achievement, and over the remaining service periods thereafter. Compensation expense recognized is shown in the operating activities section of the Consolidated Statements of Cash Flows. Table of Contents Silicon Laboratories Inc. Notes to Consolidated Financial Statements December 30, 2017 (Continued) 12. Stock-Based Compensation (Continued)         The fair values estimated from the Black-Scholes option-pricing model for ESPP and stock options granted were calculated using the following assumptions:     Year Ended   Employee Stock Purchase Plan   December 30, 2017   December 31, 2016   January 2, 2016   Expected volatility     28 %   30 %   31 % Risk-free interest rate %     1.1 %   0.6 %   0.2 % Expected term (in months)     8     15     8   Dividend yield     —     —     —   Year Ended Stock Options December 30, 2017 December 31, 2016 January 2, 2016 Expected volatility — 32 % — Risk-free interest rate % — 1.3 % — Expected term (in years) — 5.4 — Dividend yield — — —         The fair values estimated from Monte Carlo simulation for MSUs were calculated using the following assumptions:     Year Ended   MSUs   December 30, 2017   December 31, 2016   January 2, 2016   Expected volatility     31 %   30 %   31 % Risk-free interest rate %     1.6 %   0.9 %   1.0 % Expected term (in years)     2.9     2.9     2.9   Dividend yield     —     —     —           A summary of stock-based compensation activity with respect to fiscal 2017 follows: Stock Options   Shares (000s)   Weighted- Average Exercise Price   Weighted-Average Remaining Contractual Term (In Years)   Aggregate Intrinsic Value (000s)   Outstanding at December 31, 2016     228   $ 37.95               Exercised     (58 ) $ 35.27               ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Outstanding at December 30, 2017     170   $ 38.88     7.5   $ 8,387   Vested at December 30, 2017 and expected to vest     120   $ 40.39     8.1   $ 5,744   Exercisable at December 30, 2017     40   $ 33.98     5.3   $ 2,173   Table of Contents Silicon Laboratories Inc. Notes to Consolidated Financial Statements December 30, 2017 (Continued) 12. Stock-Based Compensation (Continued) RSAs and RSUs   Shares (000s)   Weighted- Average Purchase Price   Weighted-Average Remaining Vesting Term (In Years)   Aggregate Intrinsic Value (000s)   Outstanding at December 31, 2016     1,689   $ —               Granted     625   $ —               Vested or issued     (726 ) $ —               Cancelled or forfeited     (65 ) $ —               ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Outstanding at December 30, 2017     1,523   $ —     0.9   $ 134,534   Outstanding at December 30, 2017 and expected to vest     1,430   $ —     0.9   $ 126,228   PSUs and MSUs   Shares (000s)   Weighted- Average Purchase Price   Weighted-Average Remaining Vesting Term (In Years)   Aggregate Intrinsic Value (000s)   Outstanding at December 31, 2016     229   $ —               Granted     107   $ —               Earned or issued     (11 ) $ —               Cancelled or forfeited     (66 ) $ —               ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Outstanding at December 30, 2017     259   $ —     1.3   $ 22,911   Outstanding at December 30, 2017 and expected to vest     242   $ —     1.3   $ 21,388           The following summarizes the Company's weighted average fair value at the date of grant:     Year Ended       December 30, 2017   December 31, 2016   January 2, 2016   Per grant of RSAs and RSUs   $ 72.85   $ 40.55   $ 49.14   Per grant of PSUs and MSUs   $ 78.40   $ 32.23   $ 48.36   Per grant of stock options   $ —   $ 40.38   $ —           The following summarizes the Company's stock-based payment and stock option values (in thousands):     Year Ended       December 30, 2017   December 31, 2016   January 2, 2016   Intrinsic value of stock options exercised   $ 2,174   $ 2,560   $ 6,612   Intrinsic value of RSAs and RSUs that vested   $ 53,093   $ 36,502   $ 45,298   Grant date fair value of RSAs and RSUs that vested   $ 32,449   $ 39,853   $ 41,072   Intrinsic value of MSUs and PSUs that vested   $ 687   $ —   $ —   Grant date fair value of MSUs and PSUs that vested   $ 633   $ —   $ —   Table of Contents Silicon Laboratories Inc. Notes to Consolidated Financial Statements December 30, 2017 (Continued) 12. Stock-Based Compensation (Continued)         The Company received cash of $11.8 million for the issuance of common stock, and paid $15.8 million for shares withheld for taxes, during fiscal 2017. The Company issues shares from the shares reserved under its stock plans upon the exercise of stock options, issuance of RSAs, vesting of RSUs and MSUs, and purchases through employee stock purchase plans. The Company does not currently expect to repurchase shares from any source to satisfy such obligation. The following table presents details of stock-based compensation costs recognized in the Consolidated Statements of Income (in thousands):     Year Ended       December 30, 2017   December 31, 2016   January 2, 2016   Cost of revenues   $ 1,090   $ 1,070   $ 960   Research and development     21,771     19,573     19,451   Selling, general and administrative     21,891     18,985     22,380   ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​     44,752     39,628     42,791   Income tax benefit     11,073     8,496     9,264   ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​   $ 33,679   $ 31,132   $ 33,527   ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended ​ ​ December 31, ​ January 1, ​ January 2, ​      2022      2022      2021 Cost of revenues ​ $ 1,152 ​ $ 964 ​ $ 970 Research and development ​   32,860 ​   24,986 ​   23,359 Selling, general and administrative ​   26,498 ​   30,892 ​   25,125 ​ ​   60,510 ​   56,842 ​   49,454 Income tax benefit ​   (5,980) ​   (954) ​   (3,694) Share-based compensation – continuing operations ​ ​ 54,530 ​ ​ 55,888 ​ ​ 45,760 Share-based compensation – discontinued operations, net ​ ​ — ​ ​ (2,007) ​ ​ 10,715 Total ​ $ 54,530 ​ $ 53,881 ​ $ 56,475 ​ The increaseCompany recorded $7.8 million in income tax benefit inselling, general and administrative expense during fiscal 2017 was primarily due to the recognition of excess tax benefits2021 in connection with the Company's adoptionmodification of ASU 2016-09, offset in part by an adjustment in the deferred tax asset duecertain equity awards. The modifications were pursuant to the recent tax reform. employee terminations. There were no other significant modifications made to any stock grants during fiscal 2022, 2021 or 2020. The Company had approximately $61.7$121.5 million of total unrecognized compensation costscost related to granted stock options and awardsequity grants as of December 30, 201731, 2022 that areis expected to be recognized over a weighted-average period of approximately 2.02.1 years. There were no significant stock-based compensation costs capitalized into assets in any of the periods presented. F-28 Table of Contents Silicon Laboratories Inc. Notes to Consolidated Financial Statements (Continued) December 31, 2022 16. Stock-Based Compensation (Continued) Fair value assumptions and stock awards activity The fair values estimated from the Black-Scholes option-pricing model for ESPP shares granted were calculated using the following assumptions: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended   ​ ​ December 31, ​ January 1, ​ January 2, ​ Employee Stock Purchase Plan      2022      2022      2021 ​ Expected volatility ​ 44 % 42 %   67 % Risk-free interest rate % ​ 3.18 % 0.05 %   0.15 % Expected term (in months) ​ 9 ​ 9 ​ 9 ​ Dividend yield ​ — ​ — ​ — ​ ​ The fair values estimated from the Monte Carlo simulation for MSUs were calculated using the following assumptions: ​ ​ ​ ​ ​ ​ ​ Year Ended   ​ ​ January 2, ​ MSUs 2021 Expected volatility 36 % Risk-free interest rate % 1.3 % Expected term (in years) 2.9 ​ Dividend yield — ​ ​ A summary of stock-based compensation activity with respect to fiscal 2022 follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Weighted- ​ Weighted-Average ​ Aggregate ​ ​ ​ ​ Average ​ Remaining ​ Intrinsic ​ ​ Shares ​ Exercise ​ Contractual Term ​ Value Stock Options      (000s)      Price      (In Years)      (000s) Outstanding at January 1, 2022   118 ​ $ 38.80   4.12 ​ $ 19,825 Outstanding at December 31, 2022   118 ​ $ 38.80   3.12 ​ $ 11,457 Vested at December 31, 2022 and expected to vest   118 ​ $ 38.80   3.12 ​ $ 11,457 Exercisable at December 31, 2022   118 ​ $ 38.80   3.12 ​ $ 11,457 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​      ​ ​ Weighted- ​ Weighted-Average ​ Aggregate ​ ​ ​ ​ Average ​ Remaining ​ Intrinsic ​ ​ Shares ​ Grant Date ​ Vesting Term ​ Value RSAs and RSUs      (000s)      Fair Value      (In Years)      (000s) Outstanding at January 1, 2022   831 ​ $ 117.25 ​ ​ ​ ​ ​ Granted   487 ​ $ 144.40 ​ ​ ​ ​ ​ Vested or issued   (378) ​ $ 110.12 ​ ​ ​ ​ ​ Cancelled or forfeited   (43) ​ $ 134.92 ​ ​ ​ ​ ​ Outstanding at December 31, 2022   897 ​ $ 134.74   1.18 ​ $ 121,668 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Outstanding at December 31, 2022 and expected to vest   825 ​ $ 134.22   1.18 ​ $ 111,979 ​ F-29 Table of Contents Silicon Laboratories Inc. Notes to Consolidated Financial Statements (Continued) December 31, 2022 16. Stock-Based Compensation (Continued) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Weighted-      Weighted-Average ​ Aggregate ​ ​ ​ ​ Average ​ Remaining ​ Intrinsic ​ ​ Shares ​ Grant Date ​ Vesting Term ​ Value PSUs and MSUs      (000s)      Fair Value      (In Years)      (000s) Outstanding at January 1, 2022   246   $ 105.77 ​ ​ ​ ​ ​ Granted   52 ​ $ 160.97 ​ ​ ​ ​ ​ Vested or issued   — ​ $ — ​ ​ ​ ​ ​ Cancelled or forfeited   (73) ​ $ 54.77 ​ ​ ​ ​ ​ Outstanding at December 31, 2022   225 ​ $ 134.93   1.27 ​ $ 30,599 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Outstanding at December 31, 2022 and expected to vest   329   $ 138.15   1.27 ​ $ 44,604 ​ The following summarizes the Company’s weighted average fair value at the date of grant: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended ​ ​ December 31, ​ January 1, ​ January 2, ​      2022      2022      2021 Per grant of RSAs and RSUs ​ $ 144.40      $ 135.28      $ 100.27 Per grant of PSUs and MSUs ​ $ 160.97      $ 145.11      $ 98.58 ​ The following summarizes the Company’s stock-based payment and stock option values (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended ​ ​ December 31, ​ January 1, ​ January 2, ​      2022      2022      2021 Intrinsic value of stock options exercised ​ $ — ​ $ 986 ​ $ 558 Intrinsic value of RSUs that vested ​ $ 57,621 ​ $ 76,654 ​ $ 48,534 Grant date fair value of RSUs that vested ​ $ 41,610 ​ $ 47,726 ​ $ 37,477 Intrinsic value of PSUs and MSUs that vested ​ $ — ​ $ 5,231 ​ $ 8,545 Grant date fair value of PSUs and MSUs that vested ​ $ — ​ $ 3,562 ​ $ 6,302 ​ As of December 30, 2017,31, 2022, the Company had reserved shares of common stock for future issuance as follows (in thousands): ​ ​ ​ ​ 2000 Stock Incentive2009 Plan 15 2,520 2009 Stock Incentive PlanESPP 2,827 1,145 2009 Employee Stock Purchase Plan 1,208 ​ ​ ​ ​ ​ Total shares reserved 4,050 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 3,665 13.​ ​ ​ 17. Employee Benefit Plan The Company maintains a defined contribution or 401(k) Plan for its qualified U.S. employees. Participants may contribute a percentage of their compensation on a pre-tax basis, subject to a maximum annual contribution imposed by the Internal Revenue Code. The Company may make discretionary matching contributions as well as discretionary profit-sharing contributions to the 401(k) Plan. The Company contributed $3.2 million, $3.5 million $3.4 million and $3.3$4.2 million to the 401(k) Plan during fiscal 2017, 20162022, 2021 and 2015,2020, respectively. ​ F-30 Table of Contents Silicon Laboratories Inc. Notes to Consolidated Financial Statements December 30, 2017 (Continued) 14. Commitments and Contingencies Operating Leases         The Company leases certain facilities under operating lease agreements that expire at various dates through 2025. Some of these arrangements contain renewal options and require the Company to pay taxes, insurance and maintenance costs.         Rent expense under operating leases was $5.5 million, $4.7 million and $4.6 million and for fiscal 2017, 2016 and 2015, respectively. The minimum annual future rentals under the terms of these leases as of December 30, 2017 are as follows (in thousands): Fiscal Year       2018   $ 5,807   2019     4,278   2020     3,539   2021     3,016   2022     2,804   Thereafter     5,416   ​ ​ ​ ​ ​ Total minimum lease payments   $ 24,860   ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Investment Commitment         As of December 30, 2017, the Company had an unfunded commitment to invest up to $10.0 million in a limited partnership. The investment will be accounted for using the equity method and recorded in other assets, net in the Consolidated Balance Sheet when it is funded. Litigation Patent Litigation         On January 28, 2014, Cresta Technology Corporation ("Cresta Technology"), a Delaware corporation, filed a lawsuit against the Company (among others) in the United States District Court in the District of Delaware, alleging infringement of three United States Patents (the "Cresta Patents"). Cresta Technology declared bankruptcy in 2016. One of its creditors, DBD Credit Funding LLC ("DBD") and/or CF Crespe LLC (the "Cresta Successors") assumed ownership of the Cresta Patents and has substituted in for Cresta Technology in related proceedings.         The Delaware proceedings are currently stayed. In 2014 and 2015, the Company challenged the validity of two sets of claims in the Cresta Patents at the Patent Trial and Appeal Board (PTAB) of the United States Patent and Trademark Office (USPTO). In each respective proceeding, the PTAB found the reviewed claims to be invalid. The Federal Circuit Court of Appeals affirmed both determinations.         On July 16, 2014, the Company filed a lawsuit against Cresta Technology in the United States District Court in the Northern District of California alleging infringement of six United States Patents. A motion to substitute the Cresta Successors as defendants in lieu of Cresta Technology is pending. Table of Contents Silicon Laboratories Inc. Notes to Consolidated Financial Statements December 30, 2017 (Continued) 14. Commitments and Contingencies (Continued)         The Company intends to continue to vigorously defend the Delaware proceeding and to continue to pursue its claims against the Cresta Successors and their patents. At this time, the Company cannot predict the outcome of these matters or the resulting financial impact to it, if any. Other         The Company is involved in various other legal proceedings that have arisen in the normal course of business. While the ultimate results of these matters cannot be predicted with certainty, the Company does not expect them to have a material adverse effect on its Consolidated Financial Statements. 15. Related Party Transactions         On July 1, 2013, Geir Førre joined the Company as senior vice president. Mr. Førre was chief executive officer of Energy Micro, until it was acquired by the Company. Mr. Førre was the beneficial owner of approximately 30% of the Energy Micro equity and accordingly received approximately $35 million at closing. In fiscal 2015, Mr. Førre received approximately $6.1 million of the $20.0 million paid for the holdback related to potential indemnification claims and approximately $1.9 million of the $6.3 million paid for the fiscal 2014 earn-out. On March 11, 2016, the Company entered into an agreement which settled the amount of the earn-out to be paid for fiscal 2015 through 2018. Under this agreement, Mr. Førre received approximately $4.8 million of the $16.0 million that was paid.         Alf-Egil Bogen served on the Company's board of directors from October 17, 2013 to April 21, 2016. Mr. Bogen was chief marketing officer of Energy Micro, until it was acquired by the Company. Mr. Bogen was the beneficial owner of approximately 2% of the Energy Micro equity and accordingly received approximately $0.9 million at closing. In fiscal 2015, Mr. Bogen received approximately $0.4 million of the $20.0 million paid for the holdback related to potential indemnification claims and approximately $0.1 million of the $6.3 million paid for the fiscal 2014 earn-out. Under the settlement agreement, Mr. Bogen received approximately $0.3 million of the $16.0 million that was paid for fiscal 2015 through 2018 earn-out. Mr. Bogen had invested approximately $0.8 million in Energy Micro prior to the acquisition. 16. Income Taxes U.S. Tax Reform         On December 22, 2017, the U.S. government enacted comprehensive tax legislation commonly referred to as the Tax Cuts and Jobs Act (the "Tax Act"). The Tax Act makes broad and complex changes to the U.S. tax code that affect fiscal 2017, including, but not limited to requiring a one-time transition tax on certain unrepatriated earnings of foreign subsidiaries that is payable over eight years (the "Transition Tax"). The Tax Act also establishes new tax laws that will affect 2018 and later years, including, but not limited to, a reduction of the U.S. federal corporate tax rate from 35% to 21%, a general elimination of U.S. federal income taxes on dividends from foreign subsidiaries and a new provision designed to tax global intangible low-taxed income ("GILTI").         In connection with its initial analysis of the impact of the Tax Act, the Company has recorded a net tax expense of $26.3 million in fiscal 2017 which primarily consists of a net expense for the Table of Contents Silicon Laboratories Inc. Notes to Consolidated Financial Statements December 30, 2017 (Continued) 16. Income Taxes (Continued) Transition Tax of $54.4 million as well as a net expense of $21.8 million related to the revaluation of the Company's deferred tax assets and liabilities. These net expense items are partially offset by a benefit of $39.4 million realized primarily as a result of the write off of a deferred tax liability that the Company had previously recorded for anticipated future earnings of one of its foreign subsidiaries related to the treatment of stock-based compensation in the Company's intercompany cost-sharing arrangement. In addition, these net expense items were also offset by a benefit of $10.5 million for the release of valuation allowances related to certain U.S. federal tax attributes that are now expected to be fully utilized.         The Company has not completed its accounting for the income tax effects of the Tax Act. Where the Company has been able to make reasonable estimates of the effects for which its analysis is not yet complete, the Company has recorded provisional amounts in accordance with SEC Staff Accounting Bulletin No. 118. Where the Company has not yet been able to make reasonable estimates of the impact of certain elements, the Company has not recorded any amounts related to those elements and has continued accounting for them in accordance with ASC 740 on the basis of the tax laws in effect immediately prior to the enactment of the Tax Act.         The Company's accounting for the following elements of the Tax Act is incomplete. However, the Company was able to make reasonable estimates of certain effects and, therefore, has recorded provisional amounts as follows: Revaluation of deferred tax assets and liabilities:    The Tax Act reduces the U.S. federal corporate tax rate from 35% to 21% for tax years beginning after December 31, 2017. In addition, the Tax Act makes certain changes to the depreciation rules and implements new limits on the deductibility2022 18. Income Taxes Income (loss) from continuing operations, inclusive of certain executive compensation. The Company has evaluated these changes and has recorded a provisional decrease to net deferred tax assets of $21.8 million with a corresponding increase to deferred tax expense. The Company is still completing its calculation of the impact of these changes on its deferred tax balances. 100% dividends received deduction:    Beginning in 2018, the Tax Act provides a 100% deduction for dividends received from 10-percent owned foreign corporations by U.S. corporate shareholders, subject to a one-year holding period. Prior to enactment of the Tax Act, while the Company had asserted indefinite reinvestment of the foreign earnings of its foreign subsidiaries, in 2015, the Company began accruing a deferred tax liability for future earnings to be generated by one of its foreign subsidiaries upon resolution of the Altera case. The deferred tax liability was accrued in order to provide for the future U.S. tax cost of such earnings as these future earnings were not considered by the Company to be indefinitely reinvested. Under the Tax Act, these future earnings should not be subject to U.S. tax and therefore, the Company has released the deferred tax liability for this item. This release resulted in an increase to the net deferred tax asset of $39.4 million with a corresponding deferred tax benefit. The Company believes this is a reasonable estimate of the impact of the Tax Act but considers the release of this deferred tax liability as provisional pending further interpretation and guidance regarding how to account for certain aspects of the Tax Act. Transition Tax on unrepatriated foreign earnings:    The Transition Tax on unrepatriated foreign earnings is a tax on previously untaxed accumulated and currentequity-method earnings and profits ("E&P") of the Company's foreign subsidiaries. To determine the amount of the Transition Tax, the Table of Contents Silicon Laboratories Inc. Notes to Consolidated Financial Statements December 30, 2017 (Continued) 16. Income Taxes (Continued) Company must determine, among other factors, the amount of post-1986 E&P of its foreign subsidiaries, as well as the amount of non-U.S. income taxes paid on such earnings. The Company was able to make a reasonable estimate of the Transition Tax and has recorded a provisional Transition Tax expense of $54.4 million. The Company is continuing to gather additional information to more precisely compute the amount of the Transition Tax to complete its calculation of E&P as well as the final determination of non-U.S. income taxes paid. Valuation allowances:    The Company must assess whether its valuation allowance analyses for deferred tax assets are affected by various aspects of the Tax Act (e.g., deemed repatriation of deferred foreign income, future GILTI inclusions, new categories of foreign tax credits). Since, as discussed herein, the Company has recorded provisional amounts related to certain portions of the Tax Act, any corresponding determination of the need for or change in a valuation allowance is also provisional. Prior to 2017, the Company had recorded valuation allowances for certain tax attributes that the Company estimated were not more likely than not to be utilized prior to their expiration. Based on a preliminary review of its 2017 and future taxable income, the Company has recorded a provisional release of valuation allowance in the amount of $10.5 million with a corresponding deferred tax benefit.         The Company's accounting for the following elements of the Tax Act is incomplete, and it has not yet been able to make reasonable estimates of the effects of these items. Therefore, no provisional amounts were recorded. Global intangible low taxed income ("GILTI"):    The Tax Act creates a new requirement that certain income (i.e., GILTI) earned by foreign subsidiaries must be included currently in the gross income of the U.S. shareholder. Due to the complexity of the new GILTI tax rules, the Company is continuing to evaluate this provision of the Tax Act and the application of ASC 740. Under U.S. GAAP, the Company is permitted to make an accounting policy election to either treat taxes due on future inclusions in U.S. taxable income related to GILTI as a current-period expense when incurred or to factor such amounts into the Company's measurement of its deferred taxes. The Company has not yet completed its analysis of the GILTI tax rules and is not yet able to reasonably estimate the effect of this provision of the Tax Act or make an accounting policy election for the ASC 740 treatment of the GILTI tax. Therefore, the Company has not recorded any amounts related to potential GILTI tax in its financial statements and has not yet made a policy decision regarding whether to record deferred taxes on GILTI. Indefinite reinvestment assertion:    Beginning in 2018, the Tax Act provides a 100% deduction for dividends received from 10-percent owned foreign corporations by U.S. corporate shareholders, subject to a one-year holding period. Although dividend income is now exempt from U.S. federal tax in the hands of the U.S. corporate shareholders, companies must still apply the guidance of ASC 740-30-25-18 to account for the tax consequences of outside basis differences and other tax impacts of their investments in non-U.S. subsidiaries. While the Company has accrued the Transition Tax on the deemed repatriated earnings that were previously indefinitely reinvested, the Company was unable to determine a reasonable estimate of the remaining tax liability, if any, under the Tax Act for its remaining outside basis Table of Contents Silicon Laboratories Inc. Notes to Consolidated Financial Statements December 30, 2017 (Continued) 16. Income Taxes (Continued) differences or evaluate how the Tax Act will affect the Company's existing accounting position to indefinitely reinvest unremitted foreign earnings. Therefore, the Company has not included a provisional amount for this item in its financial statements for fiscal 2017. The Company will record amounts as needed for this item beginning in the first reporting period during the measurement period in which the Company obtains necessary information and is able to analyze and prepare a reasonable estimate.         Income before income taxes, includes the following components (in thousands):     Year Ended       December 30, 2017   December 31, 2016   January 2, 2016   Domestic   $ 9,700   $ 4,313   $ 2,249   Foreign     67,203     60,183     28,014   ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​   $ 76,903   $ 64,496   $ 30,263   ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended ​ ​ December 31, ​ January 1, ​ January 2, ​      2022      2022 ​ 2021 Domestic      $ 32,088      $ (15,384)      $ (55,988) Foreign ​ ​ 97,764 ​   (29,063) ​   (74,099) ​ ​ $ 129,852 ​ $ (44,447) ​ $ (130,087) ​ The provision (benefit) for income taxes consists of the following (in thousands):     Year Ended       December 30, 2017   December 31, 2016   January 2, 2016   Current:                     Domestic   $ 48,947   $ 2,639   $ 951   Foreign     7,077     4,421     3,015   ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total Current     56,024     7,060     3,966   Deferred:                     Domestic     (25,760 )   (2,430 )   (5,825 ) Foreign     (453 )   (1,628 )   2,536   ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total Deferred     (26,213 )   (4,058 )   (3,289 ) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Provision for income taxes   $ 29,811   $ 3,002   $ 677   ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​         The current domestic provision for income taxes of $48.9 million includes a one-time amount payable for the net Transition Tax of $42.6 million. Under the provisions of the Tax Act, a company is permitted to elect to pay this liability over an eight year period without interest. The Company plans to make that election. The Company currently estimates that $3.4 million of this Transition Tax liability will be paid within the next twelve months.​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended ​ ​ December 31, ​ January 1, ​ January 2, ​      2022      2022      2021 Current:                               Domestic ​ $ 52,834 ​ $ (12,630) ​ $ (9,740) Foreign ​ ​ 3,856 ​   9,447 ​   1,656 Total Current ​ ​ 56,690 ​   (3,183) ​   (8,084) Deferred: ​ ​ ​ ​ ​ ​ ​ ​ ​ Domestic ​ ​ (17,728) ​   17,873 ​   (4,031) Foreign ​ ​ (512) ​   (1,263) ​   (2,487) Total Deferred ​ ​ (18,240) ​   16,610 ​   (6,518) Provision (benefit) for income taxes ​ $ 38,450 ​ $ 13,427 ​ $ (14,602) Table of Contents​ Silicon Laboratories Inc. Notes to Consolidated Financial Statements December 30, 2017 (Continued) 16. Income Taxes (Continued) The reconciliation of the federal statutory tax rate to the Company'sCompany’s effective tax rate is as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended   ​ ​ December 31, ​ January 1, ​ January 2,   ​      2022      2022      2021   Federal statutory rate      21.0 % 21.0 % 21.0 % Foreign tax rate benefit   (6.2) ​ (16.4) ​ (11.1) ​ Research and development tax credits   (5.3) ​ 0.1 ​ 4.2 ​ Return to provision adjustments ​ (2.0) ​ 0.8 ​ — ​ Excess tax benefit of stock-based compensation ​ (1.1) ​ 3.7 ​ 0.4 ​ Change in prior period valuation allowance ​ (0.3) ​ (10.5) ​ (0.3) ​ Net operating loss not benefited ​ — ​ (6.0) ​ — ​ Nondeductible (nontaxable) domestic items ​ 0.7 ​ (2.8) ​ (1.4) ​ State tax expense ​ 1.2 ​ (0.8) ​ (0.1) ​ Nondeductible officer compensation   2.0 ​ (10.3) ​ (1.7) ​ Nondeductible (nontaxable) foreign items ​ 4.4 ​ (7.2) ​ (0.2) ​ GILTI and Subpart F income ​ 16.5 ​ (2.4) ​ 0.6 ​ Other   (1.3) ​ 0.6 ​ (0.2) ​ Effective tax rate   29.6 % (30.2) % 11.2 % ​ ​ F-31 Table of Contents Silicon Laboratories Inc. Notes to Consolidated Financial Statements (Continued) December 31, 2022     Year Ended       December 30, 2017   December 31, 2016   January 2, 2016   Federal statutory rate     35.0 %   35.0 %   35.0 % Foreign tax rate benefit     (25.2 )   (27.2 )   (30.7 ) Research and development tax credits     (4.5 )   (4.1 )   (5.6 ) Release of prior year unrecognized tax benefits     (0.6 )   (1.7 )   (1.9 ) Excess officer compensation     1.5     1.4     3.2   Change in cost-sharing treatment of stock-based compensation     5.2     (0.5 )   (7.1 ) Excess tax benefit of stock-based compensation     (5.6 )   —     —   Change in prior period valuation allowance     (1.3 )   (0.6 )   8.8   Transition tax on unremitted foreign earnings     70.8     —     —   Revaluation of deferred tax balances     28.2     —     —   Other deferred tax impacts of tax reform     (64.8 )   —     —   Other     0.1     2.4     0.5   ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Effective Tax Rate     38.8 %   4.7 %   2.2 % ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​         The effective tax rate for fiscal 2017 increased from fiscal 2016 primarily due to the one-time Transition Tax on unrepatriated earnings of certain foreign subsidiaries as a result of the enactment of the Tax Act. Additional tax expense was also recognized for the revaluation of the Company's deferred tax assets and liabilities. These increases in tax expense were partially offset by the release of a deferred tax liability related to future foreign earnings expected under the Company's intercompany cost-sharing arrangement, as well as a decrease in the valuation allowance established on federal research and development tax credits.18. Income Taxes (Continued)         The effective tax rate for fiscal 2016 increased from fiscal 2015 primarily due to fiscal 2015 including a net benefit from a change in the tax accounting treatment of stock-based compensation in a cost-sharing arrangement following a U.S. Tax Court case (Altera). The increase in the effective tax rate for fiscal 2022 was offset by a reductionprimarily due to the recognition of certain tax benefits for fiscal 2021 in discontinued operations under FASB ASU 2019-12, Simplifying the Accounting for Income Taxes, and the required adoption of new U.S. tax rules regarding the capitalization of research and experimental costs in fiscal 2022. The effective tax rate for fiscal 2021 decreased from fiscal 2020 primarily due to the adoption of ASU 2019-12 in 2021 and an increase in the prior periodbeginning of year valuation allowance.allowance on deferred tax assets for state attribute carryforwards.         On July 27, 2015,Under ASU 2019-12, the U.S. Tax Court (the "Court") issued an opinionincome tax benefit of a loss from continuing operations should be recognized in Altera Corp. v. Commissioner related to the treatment of stock-based compensation expense in an intercompany cost-sharing arrangement. A final decision was entered by the Court on December 1, 2015. In its opinion, the Court accepted Altera's position of excluding stock-based compensation from its cost-sharing arrangement and concluded that the related U.S. Treasury Regulations were invalid. In February 2016, the U.S. Internal Revenue Service (the "IRS") appealed the decision to the U.S Court of Appeals for the Ninth Circuit. Although the IRS has appealed the decision, and the U.S. Treasury has not withdrawn the requirement to include stock-based compensation from its regulations, based on the facts and circumstances of the Tax Court Case,discontinued operations if the Company believes that it is more likely than not thatwould be unable to benefit from the Tax Court decision will be upheld.loss without considering the income from discontinued operations. As such, tax benefits associated with losses incurred for fiscal 2021 were recognized in discontinued operations. Additionally, for fiscal 2021 there was an increase in the beginning of the end of fiscal 2017, after revaluation to the new U.S. federal tax rate under the Tax Act, the Company's financial statements reflect ayear valuation allowance on deferred tax assetassets for this item of $22.0 million. Alsostate attribute carryforwards as a result of changes in state tax estimates, primarily due to the enactmentdivestiture of the Tax Act,infrastructure and automotive business. In fiscal 2021, tax on the gain from the divestiture of the infrastructure and automotive business of $346.9 million was recorded in discontinued operations, as well as additional tax benefits associated with discontinued operations of $7.2 million. In fiscal 2022, the Company revised its estimate of tax on the gain from the divestiture and recorded an associated net tax benefit of $2.2 million, which comprises the majority of the return to provision adjustment in the effective tax rate. The Tax Cuts and Jobs Act (the “Act”) was enacted on December 22, 2017. Under the Act, research and experimental expenditures incurred for tax years beginning after December 31, 2021 must be capitalized and amortized ratably over five or fifteen years for tax purposes, depending on where the research activities are conducted. The Company has elected to treat global intangible low-taxed income (GILTI) as a period cost, so the capitalization of research and experimental costs in GILTI increases the Company’s provision for income taxes. Additionally, the Act required companies to pay a one-time transition tax on earnings of certain foreign subsidiaries that were previously deferred from U.S. income tax under U.S. tax law. The Company elected to pay the transition tax over the eight-year period provided in the Act. As of December 31, 2022, the unpaid balance of its transition tax obligation was $19.0 million, which is payable between April 2023 and April 2025. This was recorded as components of other current liabilities and other non-current liabilities in the Consolidated Balance Sheet in the amounts of $4.8 million and $14.2 million, respectively. F-32 Table of Contents Silicon Laboratories Inc. Notes to Consolidated Financial Statements (Continued) December 30, 2017 (Continued)31, 2022 16.18. Income Taxes (Continued) reversed the deferred tax liability of $39.4 million it had previously recorded for the U.S. tax cost of potential repatriation of the associated foreign earnings. The Company will continue to monitor ongoing developments and potential impacts to its Consolidated Financial Statements.         The Company's operations in Singapore are subject to reduced tax rates through June 30, 2019, as long as certain conditions are met. Without the impact of the one-time Transition Tax, the income tax benefit from the reduced Singapore tax rate reflected in earnings was approximately $11.0 million (representing $0.25 per diluted share) in fiscal 2017, approximately $7.7 million (representing $0.18 per diluted share) in fiscal 2016 and approximately $14.4 million (representing $0.34 per diluted share) in fiscal 2015. Deferred Income Taxes Deferred tax assets and liabilities are recorded for the estimated tax impact of temporary differences between the tax basis and book basis of assets and liabilities. Significant components of the Company'sCompany’s deferred taxes as of December 30, 201731, 2022 and December 31, 2016 areJanuary 1, 2022 were as follows (in thousands):     December 30, 2017   December 31, 2016   Deferred tax assets:               Net operating loss carryforwards   $ 12,925   $ 21,187   Research and development tax credit carryforwards     12,322     15,068   Stock-based compensation     5,256     7,396   Capitalized research and development     3,468     6,802   Deferred income on shipments to distributors     7,070     9,338   Expected future cost-sharing adjustment     19,961     29,719   Accrued liabilities and other     8,620     11,321   ​ ​ ​ ​ ​ ​ ​ ​     69,622     100,831   Less: Valuation allowance     (6,518 )   (12,361 ) ​ ​ ​ ​ ​ ​ ​ ​     63,104     88,470   Deferred tax liabilities:               Acquired intangible assets     13,884     25,785   Depreciation and amortization     1,274     2,939   Unremitted foreign earnings for expected future cost-sharing adjustment     —     31,165   Convertible debt     10,351     —   Prepaid expenses and other     1,421     3,069   ​ ​ ​ ​ ​ ​ ​ ​     26,930     62,958   ​ ​ ​ ​ ​ ​ ​ ​ Net deferred tax assets   $ 36,174   $ 25,512   ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​      December 31,      January 1, ​      2022      2022 Deferred tax assets: ​ ​ ​ ​ ​ ​ Capitalized research and development ​ $ 15,188 ​ $ 981 Tax credit carryforwards ​ ​ 13,334 ​ ​ 12,247 Intangible assets ​ ​ 7,938 ​ ​ 8,687 Accrued liabilities ​   6,809 ​   6,078 Deferred income on shipments to distributors ​   6,726 ​   4,588 Leases ​ ​ 5,517 ​ ​ 6,033 Net operating loss carryforwards ​ ​ 4,965 ​ ​ 5,803 Other ​ ​ 7,118 ​ ​ 3,199 ​ ​   67,595 ​   47,616 Less: Valuation allowance ​   (9,409) ​   (9,529) ​ ​   58,186 ​   38,087 Deferred tax liabilities: ​ ​ ​ ​ ​ ​ Intangible assets ​ ​ 13,789 ​ ​ 14,479 Fixed assets ​ ​ 8,518 ​ ​ 8,692 Prepaid expenses and other ​   5,460 ​   6,049 Leases ​ ​ 5,189 ​ ​ 5,664 Unrealized gain on equity-method investment ​ ​ 4,120 ​ ​ 3,342 Debt ​ ​ 177 ​ ​ 16,399 ​ ​   37,253 ​   54,625 ​ ​ ​ ​ ​ ​ ​ Net deferred tax assets (liabilities) ​ $ 20,933 ​ $ (16,538) ​ As of December 30, 2017,31, 2022, the Company had federal net operating loss and research and development tax credit carryforwards of approximately $37.5$14.6 million and $1.9$1.6 million, respectively, as a result of the Silicon Clocks, Spectra Linear and Ember acquisitions.respectively. These carryforwards expire in fiscal Table of Contents Silicon Laboratories Inc. Notes to Consolidated Financial Statements December 30, 2017 (Continued) 16. Income Taxes (Continued) years 20202023 through 2031. Recognition of these loss and credit carryforwards is subject to an annual limit, which may cause them to expire before they are used.         As of December 30, 2017, the Company had foreign net operating loss carryforwards of approximately $9.6 million as a result of the Energy Micro acquisition. These loss carryforwards do not expire and recognition is not subject to an annual limit. The Company also had state loss, state tentative minimum tax credit, and state research and development tax credit carryforwards of approximately $44.1$29.3 million, $0.1 million, and $13.4$12.2 million, respectively. A portion of these loss and credit carryforwards was generated by the Company and a portion was acquired through the Integration Associates, Silicon Clocks, Spectra Linear, Ember and Zentri acquisitions. Certain of these carryforwards expire in fiscal years 20182025 through 2036, and others do not expire. Recognition of some of these loss and credit carryforwards is subject to an annual limit, which may cause them to expire before they are used. ​ F-33 Table of Contents Silicon Laboratories Inc. Notes to Consolidated Financial Statements (Continued) December 31, 2022 18. Income Taxes (Continued) A valuation allowance is established against a deferred tax asset when it is more likely than not that the deferred tax asset will not be realized. As of December 30, 2017, theThe Company maintains a valuation allowance with respect to certain deferred tax assets relating primarily to state research and development tax credit andcredits, state net operating loss carryforwards.carryforwards and state alternative minimum tax credits. The following table summarizes the activity related to the valuation allowance for deferred tax assets (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Balance at ​ Additions ​      ​ ​      ​ ​ ​ Beginning of ​ Charged to ​ ​ ​ ​ Balance at ​      Period      Expenses      Deductions      End of Period Year ended December 31, 2022 ​ $ 9,529   $ 792   $ (912)   $ 9,409 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year ended January 1, 2022 ​ $ 5,311   $ 5,370   $ (1,152)   $ 9,529 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year ended January 2, 2021 ​ $ 4,486   $ 847   $ (22)   $ 5,311 ​ At the end of fiscal 2022, undistributed earnings of certain of the Company’s foreign subsidiaries of approximately $136.8 million are intended to be permanently reinvested outside the U.S. Accordingly, no provision for foreign withholding tax and state income taxes associated with a distribution of these earnings has been made. Determination of the amount of the unrecognized deferred tax liability on these unremitted earnings is not practicable. Uncertain Tax Positions The following table summarizes the activity related to gross unrecognized tax benefits (in thousands):     Year Ended       December 30, 2017   December 31, 2016   January 2, 2016   Beginning balance   $ 3,054   $ 3,610   $ 3,929   Additions based on tax positions related to current year     456     439     432   Additions based on tax positions related to prior years     114     99     —   Reductions for tax positions as a result of a lapse of the applicable statute of limitations     (437 )   (1,094 )   (751 ) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Ending balance   $ 3,187   $ 3,054   $ 3,610   ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended ​ ​ December 31, ​ January 1, ​ January 2, ​      2022      2022      2021 Beginning balance ​ $ 3,677 ​ $ 2,853 ​ $ 2,276 Additions based on tax positions related to current year ​   872   ​ 830 ​   577 Reductions based on tax positions related to prior years ​ ​ (6) ​ ​ (6) ​ ​ — Reductions for tax positions as a result of a lapse of the applicable statute of limitations ​ ​ (434) ​ ​ — ​ ​ — Ending balance ​ $ 4,109 ​ $ 3,677 ​ $ 2,853 ​ As of December 30, 2017, December 31, 20162022, January 1, 2022 and January 2, 2016,2021, the Company had gross unrecognized tax benefits, inclusive of $3.2interest, of $4.4 million, $3.0$3.9 million and $3.6$3.0 million, respectively, of which $3.2$4.4 million, $2.2$3.9 million and $3.2$2.1 million, respectively, would affect the effective tax rate if recognized. The Company recognizes interest and penalties related to unrecognized tax benefits in the provision for income taxes. These amounts were not material for fiscal years 2017, 2016 and 2015.any of the periods presented.         TheFollowing the completion of the Norwegian Tax Administration ("NTA"(“NTA”) has completed its examination of the Company'sCompany’s Norwegian subsidiary for income tax matters relating to fiscal years 2013 2014, 2015 and 2016. The– 2016, the Company received a finalan assessment from the NTA in December 2017 concerning an adjustment to its Table of Contents Silicon Laboratories Inc. Notes to Consolidated Financial Statements December 30, 2017 (Continued) 16. Income Taxes (Continued) 2013 taxable income related to the pricing of an intercompany transaction. The Company is currently appealing the assessment. The adjustment to 2013 taxable income would resultthe pricing of the intercompany transaction results in approximately 141.3 million Norwegian kroner, or $14.3 million, additional Norwegian tax of approximately $30.0 million, excluding interest and penalties.income tax. The Company disagrees with the NTA'sNTA’s assessment and believes the Company'sCompany’s position on this matter is more likely than not to be sustained. The Company plans to exhaust all available administrative remedies, and if unable to resolve this matter through administrative remedies with the NTA, the Company plans to pursue judicial remedies. The Company believes that it is likely that the NTA will request a payment of approximately $15 million in 2018 during the appeal process. The Company believes that it has accrued adequate reserves related to all matters contained in tax periods open to examination. Should the Company experience an unfavorable outcome in the NTA matter;matter, however, such an outcome could have a material impact on its financial statements. F-34 Table of Contents Silicon Laboratories Inc. Notes to Consolidated Financial Statements (Continued) December 31, 2022 18. Income Taxes (Continued) Tax years 20132015 through 20172022 remain open to examination by the major taxing jurisdictions toin which the Company is subject.operates. The Company is not currently under audit in any major taxing jurisdiction, except Norway.jurisdiction. The Company believes it is reasonably possible that thedoes not expect material changes to its gross unrecognized tax benefits will decrease by approximately $1.8 million in the next 12 months due to the lapse of the statute of limitations applicable to tax deductions and tax credits claimed on prior year tax returns.months. 17.​ 19. Segment Information The Company has one operating segment, mixed-signal analog intensive products, consisting of numerous product areas. The Company'sCompany’s chief operating decision maker is considered to be its Chief Executive Officer. The chief operating decision maker allocates resources and assesses performance of the business and other activities at the operating segment level. The Company groups its products into fourtwo categories, based on the target markets and applications in whichthey address. See Note 15, Revenues, for a summary of the products may be used. The following summarizes the Company'sCompany’s revenue by product category (in thousands):     Year Ended       December 30, 2017   December 31, 2016   January 2, 2016   Internet of Things   $ 395,012   $ 314,614   $ 262,329   Broadcast     152,980     157,746     161,787   Infrastructure     152,158     147,677     121,974   Access     68,717     77,589     98,736   ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total   $ 768,867   $ 697,626   $ 644,826   ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Table of Contentscategory. Silicon Laboratories Inc. Notes to Consolidated Financial Statements December 30, 2017 (Continued) 17. Segment Information (Continued) Revenue is attributed to a geographic area based on the shipped-to location. The following summarizes the Company'sCompany’s revenue by geographic area (in thousands):     Year Ended       December 30, 2017   December 31, 2016   January 2, 2016   United States   $ 112,574   $ 94,583   $ 96,959   China     307,748     291,974     281,306   Rest of world     348,545     311,069     266,561   ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total   $ 768,867   $ 697,626   $ 644,826   ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended ​ ​ December 31, ​ January 1, ​ January 2, ​      2022      2022      2021 United States ​ $ 176,379 ​ $ 97,471 ​ $ 59,458 China ​   334,821 ​   311,513 ​   232,772 Taiwan ​ ​ 105,602 ​ ​ 68,196 ​ ​ 47,579 Rest of world ​   407,304 ​   243,680 ​   171,119 Total ​ $ 1,024,106 ​ $ 720,860 ​ $ 510,928 ​ The following summarizes the Company'sCompany’s property and equipment, net by geographic area (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ January 1, ​      2022      2022 United States ​ $ 121,031 ​ $ 121,990 Rest of world ​   30,985 ​   24,526 Total ​ $ 152,016 ​ $ 146,516 ​ ​ ​ F-35     December 30, 2017   December 31, 2016   United States   $ 119,746   $ 124,163   Rest of world     7,936     5,396   ​ ​ ​ ​ ​ ​ ​ ​ Total   $ 127,682   $ 129,559   ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Table of Contents Supplementary Financial Information (Unaudited)         Quarterly financial information for fiscal 2017 and 2016 is as follows. All quarterly periods reported here had 13 weeks (in thousands, except per share amounts):     Fiscal 2017       Fourth Quarter   Third Quarter   Second Quarter   First Quarter   Revenues   $ 201,018   $ 198,723   $ 190,098   $ 179,028   Gross margin     119,264     116,574     113,192     105,161   Operating income     26,390     24,968     20,934     12,682   Net income (loss)   $ (4,852 ) $ 19,949   $ 16,569   $ 15,426   Earnings (loss) per share:                           Basic   $ (0.11 ) $ 0.47   $ 0.39   $ 0.37   Diluted   $ (0.11 ) $ 0.46   $ 0.38   $ 0.36       Fiscal 2016       Fourth Quarter   Third Quarter   Second Quarter   First Quarter   Revenues   $ 182,610   $ 178,083   $ 174,908   $ 162,025   Gross margin     109,476     108,203     108,294     95,531   Operating income     20,083     21,732     17,614     6,848   Net income   $ 20,109   $ 20,018   $ 15,559   $ 5,808   Earnings per share:                           Basic   $ 0.48   $ 0.48   $ 0.37   $ 0.14   Diluted   $ 0.47   $ 0.47   $ 0.37   $ 0.14