Silicon Laboratories Introduces Complete USB FM Radio Reference Design; High Performance and Superior Integration Enable Easy-to-Use, Compact Reference Design.

AUSTIN, Texas -- Silicon Laboratories Inc. (Nasdaq:SLAB), a leader in high-performance, analog-intensive, mixed-signal ICs, today announced a new USB FM radio reference design. Based on Silicon Laboratories' industry-leading Si4701 FM tuner and C8051F321 USB microcontroller (MCU), the reference board plugs into any Windows PC supporting USB connectivity and plays high-quality FM broadcast audio through the PC speakers. The USB FM reference design contains the Windows-based FM tuner application, complete source code and engineering documentation enabling customers to quickly demonstrate, evaluate and produce devices with USB connectivity and high-quality FM radio reception.

Silicon Laboratories' USB MCUs offer the industry's smallest footprint including an on-board USB 2.0 function controller with integrated transceiver and on-chip clock recovery. No resistors, crystal, regulator, EEPROM or other external components are required. On-chip digital resources include a pipelined 25 MIPS 8051 CPU with 16 kB Flash and UART, SMBus and SPI serial interfaces. On-chip analog features include a multi-channel 10-bit ADC, voltage reference, oscillator, comparators and a temperature sensor. This high performance combination of analog peripherals, digital core and USB interface makes the C8051F321 the ideal MCU for embedded applications requiring robust analog capability and high-speed USB connectivity.

The patented Si4701 FM broadcast radio tuner integrates selectivity filtering, automatic gain control, frequency synthesizer and audio processing in a single CMOS IC. The highly integrated Si4701 requires only one external supply bypass capacitor and can be implemented in less than 20 mm2. The Si4701 also incorporates a digital pre-processor for the European Radio Data System (RDS) and the U.S. Radio Broadcast Data System (RBDS) enabling data such as the station ID and song name to be displayed to the user.

To Learn More

The USB FM radio reference design documentation, Gerber files and related development tools are available at www.silabs.com/usbradio.

Silicon Laboratories Inc.

Silicon Laboratories Inc. is a leading designer of high-performance, analog-intensive, mixed-signal integrated circuits (ICs) for a broad range of applications. Silicon Laboratories' diverse portfolio of highly-integrated, patented solutions is developed by a world-class engineering team with decades of cumulative expertise in cutting-edge mixed-signal design. The company has design, engineering, marketing, sales and applications offices throughout North America, Europe and Asia. For more information about Silicon Laboratories, please visit www.silabs.com.

Cautionary Language

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