Analog Devices and SiWorks Announce Agreement to Develop a Flexible Modem Solution for 802.16 WiMAX Forum Base Stations

ADI’s TigerSHARC Processor enables a future-proof software baseband implementation.

Norwood, Mass. and Calgary, Canada -- November 3, 2004 -- Analog Devices, Inc. (NYSE: ADI), a leader in semiconductors for signal processing applications and SIWORKS, Inc., a wireless semiconductor intellectual property (IP) company, today announced an agreement to develop the physical layer (PHY) of an 802.16 (WIMAX) broadband wireless baseband modem on ADI’s TigerSHARC processor. ADI becomes the first mainstream processor provider to enable an all-software 802.16d WiMAX physical layer without the use of rigid ASICs.

SIWORKS’ Software Defined Radio (SDR) WiMAX modem provides a complete physical layer baseband solution implemented on ADI’s TigerSHARC processor and is based on SIWORKS’ wireless intellectual property solutions. ADI also announced today the availability of a WiMAX Developer’s Toolkit, enabling the rapid development of carrier class WiMAX base station products.

The ADI and SIWORKS solution is a software-based complete physical layer, initially targeted to the WiMAX OFDM-256 specification. The implementation allows for a seamless upgrade to the complete 802.16d specification and all future amendments. The same architecture can easily be upgraded to the mobility version of the specification, known as IEEE 802.16e. The TigerSHARC processor’s best in class I/O bandwidth (4 Gbyte/second I/O throughput) enable a scalable implementation, allowing for OEM differentiation through advanced receiver techniques. It is widely held that 802.16 implementations will utilize smart antenna techniques such as space-time coding or adaptive beam-forming, thereby necessitating a flexible and scalable architecture.

“During this early stage of 802.16 development, a flexible infrastructure approach is essential, since the specifications to the 802.16e standard has yet to be finalized,” said Gerald McGuire, General Manager, Media Platforms & Services Group, Analog Devices.

“The adoption of the TigerSHARC processor into 802.16 base stations, coupled with TigerSHARC’s success in 3G base stations, confirms its place as the leading signal processor platform for carrier class wireless infrastructure products. Additionally, our collaboration with SIWORKS will allow us to offer customers an accelerated path to the development of carrier class, WIMAX base station products.”

“SIWORKS’ in-depth wireless system knowledge and specific expertise developing and licensing IP solutions for the IEEE 802.16 standards, coupled with ADI’s world leading processor products, results in a formidable team. We have found the TigerSHARC Processor to be an ideal means to implement an 802.16 software defined radio,” said Roger Bertschmann, President of SIWORKS.

The WiMAX Developer’s Toolkit consists of a TigerSHARC DSP PCI card from BittWare Inc., and an ADI developed API with C-callable physical layer library functions. The Toolkit collects, in one place, all the IP necessary to begin an OEM custom development from available, validated building blocks.

The TigerSHARC® Processor family offers the industry's highest performance per-watt, per dollar and per-square-inch of board space for the most demanding signal- and imageprocessing applications.

About BittWare, Inc.

Founded in 1989, BittWare, Inc. is leading the market for signal processing solutions on AdvancedTCA Mezzanine Cards (AMC). BittWare delivers 802.16 solutions based on TigerSHARC DSP processors (the industry’s highest performance floating point DSP) and FPGAs. These solutions can be implemented on BittWare’s AMC, PCI , CPCI, PMC or custom hardware. For more information, please visit BittWare at www.bittware.com.

About SIWORKS

SIWORKS is a leading supplier of wireless semiconductor intellectual property (WSIP) solutions for new and emerging wireless communication standards. SIWORKS’ WSIP solutions and integrated circuit designs are being used by semiconductor companies and broadband wireless original equipment manufacturers (OEMs) worldwide. Silicon proven WSIP cores are available for communication standards including IEEE 802.16 (WiMAX Forum™), IEEE 802.15.3a (UWB-MBOA SIG) and IEEE 802.11a/b/g (WiFi). For more information, please visit the SIWORKS web site: www.siworks.com.

About Analog Devices

Analog Devices, Inc. is a leading manufacturer of precision high-performance integrated circuits used in analog and digital signal processing applications. ADI is headquartered in Norwood, Massachusetts, and employs approximately 8,700 people worldwide. It has manufacturing facilities in Massachusetts, California, North Carolina, Ireland, and the Philippines. Analog Devices' common stock is listed on the New York Stock Exchange and ADI is included in the S&P 500 Index.

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