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Silicon Laboratories Inc. is a leading global manufacturer of integrated-circuit (IC) products that combine world-class analog with high-speed digital and FLASH memory in a single, powerful chip. The combination of mixed-signal integration and in-system programmability offers tangible user benefits through higher component integration, greater design flexibility, faster time-to-market, superior system performance, and improved end-product differentiation.

Silicon Labs Featured Product
Silicon Labs QuickSense Infrared Sensing
Silicon Labs Quicksense™ Human Interface Solutions

The Silicon Labs QuickSense™ family of products offers a unique grouping of the industry's fastest capacitive and optical sensing solutions to enable sophisticated user interfaces in electronics products, all supported with the innovative and easy to use QuickSense Studio development platform.


User Interface Solutions

The QuickSense portfolio features touch and touchless user interface solutions, including the innovative touchless slider which can detect complex gestures. Developers will find reliable and responsive UI products including:

  • Capacitive buttons
  • Capacitive sliders and wheels
  • Capacitive proximity sensing
  • Infrared proximity sensing
  • Ambient light sensing



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Silicon Labs Product Line




New Silicon Labs Products
Added 04/2012 Silicon Labs SNAP Enabled Programmable XCVR Development Tools Learn More
Added 03/2012 Silicon Labs ISOvolt 35/55 Kits Learn More
Added 03/2012 Silicon Labs Si5xxx PCIe Clock Generators and Buffers Learn More
Added 03/2012 Silicon Labs Si5xxx 5214x PCIe Clock Evaluation Boards Learn More
Added 02/2012 Silicon Labs Si5xx-PROG-EVB Evaluation Board Learn More
Added 12/2011 Silicon Labs Si102x/3x Ultra Low Power RF Microcontrollers Learn More
Added 09/2011 Silicon Labs Si4840 / Si4844 Radio Receiver ICs Learn More
Added 08/2011 Silicon Labs Si86xx Six-Channel Digital Isolators Learn More
Added 06/2011 Silicon Labs Energy Harvesting Reference Design Learn More
Added 05/2011 Silicon Labs Si537x 4-PLL Jitter Attenuating Clock ICs Learn More
Added 04/2011 Silicon Labs HID USB to IR Reference Design Learn More
Added 04/2011 Silicon Labs C8051F38x / C8051T62x Mixed-Signal USB MCUs Learn More
Added 01/2011 Silicon Labs Si114x QuickSense™ Infrared Proximity Sensors Learn More
Added 12/2010 Silicon Labs Si85XX20AQFN-EVB Evaluation Board Learn More
Added 12/2010 Silicon Labs CP21xx Smart Interface Connectivity Bridges Learn More
Added 11/2010 Silicon Labs Si5351 CMOS Clock Generator Learn More
Added 11/2010 Silicon Labs Si824x Class D Audio Drivers Learn More
Added 10/2010 Silicon Labs EZLink Development Kits for Si4431 / Si4432 EZRadioPRO® Learn More
Added 09/2010 Silicon Labs CP2501 Programmable Touchscreen USB Bridge IC Learn More
Added 07/2010 Silicon Labs Si401x / Si431x EZRadio® Wireless Solutions - Expansion Learn More
Added 07/2010 Silicon Labs C8051F98x / C8051F99x Microcontrollers Learn More
Added 06/2010 Silicon Labs Si841x / Si842x 5kV Digital Isolators Learn More
Added 06/2010 Silicon Labs Si5317 Jitter Cleaning Clock Learn More




Featured New Silicon Labs Products

Silicon Labs SNAP Enabled Programmable XCVR Development Tools

Silicon Labs' SNAP Enabled Programmable XCVR Development Tools combine Silicon Labs Si1000 wireless MCU enabled with Synapse's SNAP (Synapse Network Appliance Protocol) operating system. These SNAP Enabled Programmable XCVR Development Tools make it easy to deploy scalable, ultra-low power and small-footprint wireless mesh networking solutions for smart metering, building automation, lighting control, personal medical devices, asset tracking systems, and other wireless applications. The Silicon Labs' SNAP Enabled Programmable XCVR Development Tools provides a turnkey hardware /software solution that developers can deploy immediately in their end products. It also offers an easy-to-use development platform for those who want to migrate their wireless designs to high-volume applications using the Si1000 MCU running SNAP as embedded firmware.

Silicon Labs Si5xxx PCIe Evaluation Boards

Silicon Labs Si5xxx PCIe Evaluation Boards are available for the four and nine output PCIe generators and buffers. Using Si5xxx PCIe Evaluation Boards, customers are able to measure the performance of the device as well as the device power consumption. Silicon Labs Si5xxx PCIe Evaluation Boards are available for the Si52144, Si52147, Si53154, and Si52159.

Silicon Labs Si5xxx PCIe Clock Generators and Buffers

Silicon Labs Si5xxx PCIe Clock Generators and Buffers offer the industry's highest level of performance per watt for clocking applications required to meet PCI Express® Gen1/2/3 standards, and have 2x lower power consumption than competitors yet provide up to 50% margin to PCI-Express jitter specifications. Silicon Labs Si5xxx PCIe Clock Generators and Buffers fully integrate termination resistors, reduce BOM cost, board space requirements and design complexity. Si5xxx PCIe Clock Generators and Buffers consist of two to nine output solutions that address a wide range of storage, embedded, enterprise, communication and consumer applications.

Silicon Labs C8051F96x Ultra-Low-Power High Efficiency Battery-Powered Metering MCUs

Silicon Labs Si102x/3x Ultra Low Power RF Microcontrollers

Silicon Labs Si102x/3x Ultra Low Power RF Microcontrollers are fully integrated mixed-signal System-on-a-Chip wireless MCUs. Silicon Labs Si102x/3x Ultra Low Power RF Microcontrollers feature 240-960 MHz EZRadioPRO(R) transceiver, power efficient on-chip dc-dc buck converter, high-speed pipelined 8051-compatible microcontroller core (up to 25 MIPS), and in-system, full-speed, non-intrusive debug interface (on-chip). With on-chip power-on reset, VDD monitor, watchdog timer, and clock oscillator, Silicon Labs Si102x/3x Ultra Low Power RF Microcontrollers are truly stand-alone system-on-a-chip solutions. The flash memory can be reprogrammed even in-circuit, providing non-volatile data storage, and also allowing field upgrades of the 8051 firmware. User software has complete control of all peripherals, and may individually shut down any or all peripherals for power savings.

Silicon Labs ISOvolt 35/55 Kits

Silicon Labs offers ISOvolt 35/55 Kits to help system designers with providing the necessary isolated power supply for the secondary side of the isolation interface. These Silicon Labs ISOvolt 35/55 Kits provide a plug and play solution for up-to 3W of isolated continuous output power with 78% efficiency, fold-back current limiting, thermal protection and flexibility to allow for 3 V or 5 V inputs and outputs. For 3 V inputs and 5 V outputs, the ISOvolt35 Kit provides the right transformer design while the ISOvolt55 Kit provides the right solution for a 1:1 voltage transfer for a 3 V or 5 V power source.

Silicon Labs Si4010 DAAKF Key Fob Demo Kits

Silicon Labs Si5xx-PROG-EVB Programmable XO/VCXO Evaluation Board

The Silicon Labs Si5xx-PROG-EVB Evaluation Board contains the hardware and software needed for evaluation of the Si514 / 570 / 571 / 598 / 599 Any-Frequency I²C Programmable Crystal Oscillators / Voltage-Controlled Crystal Oscillators (XOs / VCXOs) and can be run on a USB-equipped PC. The Silicon Labs Si5xx-PROG-EVB kit features Windows-compatible software control and device programming. A voltage regulator supports device operation of the Si5xx at +1.8, +2.5, or +3.3V. Si51xx XOs / VCXOs feature Silicon Labs' patented DSPLL® technology to generate any frequency from 100 kHz to 250 MHz with 26 parts per trillion frequency programming resolution.

Silicon Labs Si4840 / Si4844 Radio Receiver ICs

The Silicon Labs Si4840 and Si4844 are the first analog-tuned digital-display CMOS AM/FM/SW radio receiver ICs that integrate the complete receiver function from antenna input to audio output. Si4840 and Si4844 radio receiver ICs implement Silicon Labs' proven low-IF digital architecture, providing an easy and reliable control interface while eliminating all the manual tuned external components used in traditional solutions. The architecture also provides the industry's leading receiver performance, with excellent sensitivity and selectivity in all supported bands. Silicon Labs Si4840 and Si4844 radio receiver ICs support industry-leading features for band selection, Bass/Treble boost, European EN 55020/22, and U.S. FCC compliance as well as advanced audio conditioning for all signal environments to remove pops, clicks, and abrasive static. These radio receiver ICs also support interrupts for valid tuned frequencies and stereo/mono signal quality. Si484x devices are designed for use in a variety of applications, including table and portable radios, stereos, mini/micro systems, boom boxes, clock radios, and more.

Silicon Labs Si537x 4-PLL Jitter Attenuating Clock ICs

Silicon Labs Si5374 and Si5375 4-PLL Jitter Attenuating Clocks are the first single-chip timing ICs to integrate four independent, high-performance phase locked loops (PLLs), providing twice the PLL integration and 40 percent lower jitter than competing solutions. Silicon Labs Si5374 and Si5375 clock ICs with DSPLL® technology address the complex timing requirements of high-speed optical transport network (OTN) applications. The Si5374 has eight input clocks and eight output clocks while the Si5375 offers four input clocks and four output clocks for applications requiring fewer clocks. With its quad-DSPLL configuration, a single Si5374 clock can generate different frequencies simultaneously, enabling the design to support SONET/SDH, 1/10/100G Ethernet, 1/2/4/8/10G Fibre Channel, 3G/HD SDI video and other protocols simultaneously in the same device. Silicon Labs Si5374 and Si5375 clock ICs provide a smooth upgrade path for existing customers migrating from Silicon Labs Si5319 / Si5326 clocks to a more integrated jitter-cleaning clock solution designed to minimize BOM cost and complexity. The Si537x clocks effectively replace four timing devices with a single IC in high-port-count 10G/40G/100G OTN line cards.

Silicon Labs Si86xx Six-Channel Digital Isolators

Silicon Labs Si86xx digital isolators are the industry's first six-channel 5kV digital isolators. These Silicon Labs six-channel digital isolators offer the highest channel count, performance, and data rate for demanding applications with isolation ratings up to 5kV. Si86xx 3.5kV and 5kV digital isolators replace optocouplers in target applications requiring robust operation and high levels of insulation protection, such as industrial automation and drives, motor control, and medical systems. With its 5kV rating, the Si86xx family offers an ideal isolation solution for isolated ac-dc and dc-dc power supplies, as well as solar panel microinverters, data communications systems, and hybrid electric vehicles (HEVs). Silicon Labs Si86xx isolators deliver the industry's fastest data rate (150 Mbps) across the widest temperature range (-40 to 125ºC), as well as ultra-low power operation of less than 1.6 mA per channel at 1 Mbps for energy-efficient system design. The robust architecture of the Si86xx family ensures that signal integrity is maintained even while operating at high data rates and at high temperatures in harsh environments.

Silicon Labs Energy Harvesting Reference Design

The Silicon Labs Energy Harvesting Reference Design demonstrates an extremely low power wireless sensor node operating from a solar energy harvesting source. This turn-key wireless sensor node solution is powered by an energy harvesting source. Developers can reuse this energy harvesting design extensively to implement any wireless sensor system. The Silicon Labs Energy Harvesting Reference Design is optimized for minimum power consumption. The design uses the power-efficient Si10xx wireless microcontroller. Ultra-low power modes and fast-wake-up capability of the MCU minimize power consumption. The flexible system design will accommodate other harvested energy sources in addition to solar. This Silicon Labs reference design makes it easy to bypass the solar source and connect other energy sources such as vibration (piezoelectric), thermal, and RF.

Silicon Labs MCUniversity Kit

The Silicon Labs MCUniversity Kit contains all the materials needed by students, including a ToolStick University Starter Kit, Embedded Programming Textbook, Silicon Labs MCU Selector Guide, engineer pad, and pen. The Toolstick University Starter Kit included in the Silicon Labs MCUniversity Kit is a complete development platform for MCUniversity course lab exercises. The ToolStick base adapter provides a USB debug interface and data communications path between a Windows PC and the C8051F020 microcontroller. The base adapter is powered from the USB port and also provides power to the University Daughter Card. The C8051F020 microcontroller and application circuitry are located on the daughter card.






Silicon Labs Resources
Silicon Labs Part Builders / Selection Guides
Silicon Labs Applications

Applications for Mixed-Signal ICs

High-performance, small footprint solutions

Silicon Laboratories' portfolio of highly integrated, mixed-signal solutions enables customers to build higher performance systems with differentiated features at a lower cost. Click below to view end system solutions for the following applications.



Silicon Labs Training Videos
Wireless Development Suite — Radio Control Panel

Tutorial on how to get from quick configuration of the radios to generating basic link code in Wireless Development Suite (WDS). Focuses on the radio control panel.


QuickSense™ Touchless Slider Evaluation Kit Demonstration

This step by step video highlights the new QuickSense Studio using the Touchless Slider EK. See how quickly and easily you can implement complex gesture recognition using intuitive software development tools for configuring, building and calibrating active infrared sensing systems.


QuickSense™ API Demonstration

See a demonstration of the QuickSense API and learn about the structure of the projects created by the QuickSense Configuration Wizard. The demo starts with an overview of the API and makes its way through the files that make up the QuickSense API project for capacitive sensing.


Music Keyboard Demonstration

Follow along with this demonstration of the Keyboard Evaluation Kit. This application example uses the KEYBOARD-EK to illustrate the use of capacitive sensing switches using the C8051F700 family of MCUs with Silicon Labs Capacitance to Digital Converter (CDC) technology.


QuickSense™ Studio Demo

See how you can implement capacitive and IR sensors in minutes! This video takes you step by step through the features and operation of the QuickSense™ Studio application, a common development environment that simplifies characterization of capacitive and IR sensing systems using Silicon Labs human interface products.


More Silicon Labs Videos



Silicon Labs Technology Tutorials
Lower Your Power Consumption

Lower the power consumption in your design! The C8051F9xx is the industry's lowest-power MCU and the first MCU able to operate down to 0.9 V with support for single and dual battery operation. The part provides all key attributes for low-power applications.


Replace Your Crystal XO

Replace your crystal XO with a drop-in compatible all-silicon XO. Short lead times, highest reliability and unmatched performance make this an ideal part for high volume applications. Discover how to generate your own part number!


Minimize Your Radio BOM Cost

The easy-to-use Si47xx family requires only two external components and offers many footprint compatible multi-band receivers. This family has the highest level of integration and best-in-class performance and requires no factory hand-tuning.


Integrated CAN to LIN MCUs

Reduce system cost with a highly-integrated 8-bit MCU architecture. The C8051F50x offers an integrated CAN to LIN gateway with no external timing components in a 5x5 mm package. Silicon Labs is an ISO/TS16949 registered company.


Silicon Labs Product-Specific Training Courses


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