AUSTIN, Texas -- Silicon Laboratories Inc. (Nasdaq:SLAB - News), a leader in high-performance, analog-intensive, mixed-signal ICs, today announced the appointment of Necip Sayiner as president and chief executive officer, effective September 14, 2005. Dr. Sayiner replaces interim chief executive officer Nav Sooch, who will continue to play an active role in the company as chairman of the board of directors.

Dr. Sayiner's appointment follows a rigorous worldwide selection process that included exhaustive review by Silicon Laboratories' board of directors and senior executives. He brings to the role a strong mix of deep technical expertise in mixed-signal technologies and a proven ability to manage and grow large, diversified businesses.

"Necip's background is an excellent match with the skill set needed to guide our business as we expand our portfolio and work towards becoming a billion dollar company," said Mr. Sooch, chairman of the board. "Necip is a thoughtful, methodical and analytical leader who has established a strong track record driving growth in complex, mixed-signal markets. Additionally, we believe his technical depth will be a fit culturally with our world-class engineering team and contribute to our ability to consistently apply our resources to the best possible mixed-signal opportunities."

Prior to joining Silicon Laboratories, Dr. Sayiner held various leadership roles at Agere Systems. Most recently, he was vice president and general manager of the enterprise and networking division where he managed a diverse product portfolio consisting of custom and standard products in networking, computing, networked storage, client access, printing, imaging, home networking and satellite radio, while also establishing growth initiatives with aggressive new product introductions.

Dr. Sayiner previously served as the vice president and general manager of the networking IC division where he made significant improvements in operational performance and transformed the business from a mature, telecom-oriented business to a growth-oriented, highly profitable enterprise. While at Agere, Dr. Sayiner also held several senior design management roles in the storage division, driving his organization to achieve a leadership position in hard disk drive electronics.

"I am thrilled to be leading a company of Silicon Laboratories' caliber, and I look forward to working with the board and the management team to build upon the strong foundation of Silicon Laboratories' innovative culture and lead the company to its next phase of growth," said Dr. Sayiner. "The market for mixed-signal ICs and systems is dynamic and growing, and I believe there is no company better positioned to capitalize on this trend than Silicon Laboratories."

Silicon Laboratories Inc.