Enfora Adopts Silicon Laboratories Aero EDGE Radio

Enfora Adopts Silicon Laboratories Aero EDGE Radio

    Business Editors/High-Tech Writers

    AUSTIN, Texas--(BUSINESS WIRE)--March 14, 2005--

Patented EDGE Transmit Architecture Preserves Best-in-Class GSM/GPRS Performance While Exceeding EDGE Performance Requirements
    Silicon Laboratories Inc. (Nasdaq:SLAB) today announced that Enfora, a leading wireless technology provider for mobile products, has adopted Silicon Laboratories' Aero(R) EDGE Radio for GSM/GPRS/EDGE personal digital assistants (PDAs) and smart phones targeted for US operators. Enfora selected the Aero EDGE Radio to guarantee the highest performance for GSM/GPRS/EDGE modules with a simple and easy-to-use radio design.
    The Aero EDGE Radio incorporates a proven digital low-IF receiver and a transmitter that uniquely combines the high performance of an offset phase-locked loop (OPLL) transmitter and a CDMA-like linear transmitter. Unlike competing architectures, this innovative, patented, transmitter approach provides performance margin to the EDGE radio specifications while preserving the best-in-class GSM/GPRS performance. Silicon Laboratories' Aero EDGE radio also significantly lowers the overall bill of materials reducing the required board space and component count when compared to competing solutions.
    "Our customers demand EDGE technology with the highest GSM/GPRS performance and reliability in the field," said Scott Constien, Chief Technical Officer of Enfora. "Silicon Laboratories' Aero EDGE Radio offers an ideal radio platform that guarantees the highest radio performance based on proven technology."
    "The Aero EDGE Radio's patented transmitter architecture uniquely positions Silicon Laboratories to address the requirements of handset makers and service providers for EDGE phones," said Ed Healy, vice president of Silicon Laboratories. "Our RF expertise enables us to simplify customers' migration to EDGE, helping them to meet service providers' requirements for EDGE handsets that deliver on consumer expectations in key metrics like battery life."
    The Aero EDGE Radio is based on Silicon Laboratories' Aero II transceiver, the industry's most integrated single-chip RF transceiver. The Aero II transceiver integrates all sensitive components including RF and TX voltage-controlled oscillators (VCOs), VCO tuning components, loop filters and clock coupling capacitors. In addition, the Aero II transceiver includes a proven digitally-controlled crystal oscillator (DCXO) for use with a standard 26 MHz crystal and a software-programmable universal baseband interface that supports leading GSM/GPRS/EDGE basebands.
    The Aero EDGE Radio is qualified for use with power amplifiers (PAs) and other components sourced from multiple vendors, offering customers a high degree of flexibility in procurement and supply

    Enfora

    Based in Plano, Texas, Enfora is a provider of wireless communications solutions for the growing number of integrators and mobile workers. Enfora's products are designed to provide access to mission-critical data, files, and applications via a GSM/GPRS/EDGE or WiFi network connection-quickly and wirelessly. For more information, view Enfora on the World Wide Web at www.enfora.com.

    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

    This press release may contain forward-looking statements based on Silicon Laboratories' current expectations. These forward-looking statements involve risks and uncertainties. A number of important factors could cause actual results to differ materially from those in the forward-looking statements. Silicon Laboratories believes that it is important to communicate the company's future expectations to investors. However, there may be events in the future that Silicon Laboratories is not able to accurately predict or control. For a discussion of these and other factors that could impact Silicon Laboratories' financial results and cause actual results to differ materially from those in the forward-looking statements, please refer to Silicon Laboratories' recent filings with the SEC, particularly the Form 10-K filed February 15, 2005.

    Note to editors: Silicon Laboratories, Aero and the Silicon Laboratories logo are trademarks of Silicon Laboratories Inc. All other product names noted herein may be trademarks of their respective holders.

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CONTACT: Silicon Laboratories Inc., Austin Tiffany Plowman, 512-464-9432 tiffany.plowman@silabs.com

KEYWORD: TEXAS INTERNATIONAL ASIA PACIFIC EUROPE INDUSTRY KEYWORD: HARDWARE COMPUTERS/ELECTRONICS SOFTWARE NETWORKING PRODUCT SOURCE: Silicon Laboratories Inc.

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