Silicon Laboratories Receives Zero-Defect Supplier Award; Focus on Quality is Key to Building Strong Customer Relationships

AUSTIN, Texas--Sept. 2, 2003--Silicon Laboratories Inc. today announced that Delphi Delco Electronics Systems, a division of Delphi Corporation , awarded Silicon Laboratories its Absolute Zero Defect Supplier Award. A world leader and pioneer of in-vehicle entertainment and electronics, Delphi presents this high distinction to a small number of suppliers who achieve zero quality defects, meet strict standards and demonstrate an ongoing commitment to quality improvement. Silicon Laboratories received this honor for its Si4136XM RF synthesizer, which Delphi Delco has adopted for original equipment satellite radio receivers.

"We are pleased to award Silicon Laboratories this high distinction," said George Duncan, director of purchasing for Delphi Delco Electronics Systems. "Suppliers that receive this award have demonstrated an exceptional commitment to quality and the ability to perform routinely at world-class quality levels."

"Perfection in everything is now the expectation, and we must reward those areas that achieve 'defect-free' performance levels. This includes our supply base," said Don Deptowicz, general director of customer satisfaction for Delphi Delco Electronics Systems.

Silicon Laboratories, an ISO:9001 certified company, has built quality management into all of its processes and continually applies customer feedback into the quality system. A dedication to delivering the highest quality parts combined with a supply chain of world-class partners allows Silicon Laboratories to provide reliable and robust solutions to customers.

"It is an honor to receive Delphi's Absolute Zero Defect Award," said Dan Artusi, president and chief operating officer of Silicon Laboratories. "Our goal at Silicon Laboratories is to be the supplier of choice for our customers by being an example of excellence and by delivering products that consistently exceed their expectations."

The Si4136XM used in satellite receivers is a 100 percent CMOS monolithic integrated circuit that performs IF and dual-band, low-noise RF frequency synthesis and addresses the price-sensitive, low-power, high-performance requirements for personal wireless communications. Based on a patented CMOS technology, Silicon Laboratories offers a complete family of RF synthesizer and transceiver products including solutions for GSM/GPRS handsets.

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 January 22, 2003 and the Form 10-Q filed July 21, 2003.

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