Board of Directors

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Nav Sooch

Chairman

Navdeep S. Sooch co-founded Silicon Laboratories in August 1996 and served as Chief Executive Officer until 2003 and Chairman of the Board since our inception. From March 1985 until founding Silicon Laboratories, Mr. Sooch held various positions at Crystal Semiconductor/Cirrus Logic, a designer and manufacturer of integrated circuits, including Vice President of Engineering, Product Planning Manager of Strategic Marketing and Design Engineer. From May 1982 to March 1985, Mr. Sooch was a Design Engineer with AT&T Bell Labs. Mr. Sooch holds a B.S. in electrical engineering from the University of Michigan, Dearbonr and an M.S. in electrical engineering from Stanford University.

Holdings: 659,771 shares     View Transactions

Date	Type	Shares Traded	Price Range
08/28/09	Automatic Sell	100,000	44.57 - 44.80
08/28/09	Option Execute	50,000	15.10
06/26/09	Automatic Sell	2,800	39.08
06/10/09	Automatic Sell	2,200	39.05
06/01/09	Automatic Sell	5,000	34.48
04/23/09	Acquisition (Non Open Market)	8,082	0.00
02/09/09	Disposition (Non Open Market)	4,571	n/a
11/03/08	Disposition (Non Open Market)	19,250	n/a
10/25/07	Automatic Sell	36,035	45.06
09/14/07	Automatic Sell	50,000	40.09 - 40.10

Necip Sayiner

President and Chief Executive Officer

Dr. Sayiner joined Silicon Laboratories as President and CEO in September 2005. Prior to joining Silicon Laboratories, Dr. Sayiner was vice president and general manager of the enterprise and networking division at Agere Systems. He also served as the vice president and general manager of the networking IC division and held several senior design management roles in the storage division. Dr. Sayiner holds a bachelor's degree in electrical engineering and physics from Bosphorus University in Turkey. He holds a master's degree in electrical engineering from Southern Illinois University and a doctorate in electrical engineering from the University of Pennsylvania. He has received multiple patents related to data detection schemes.

Holdings: 332,109 shares     View Transactions

Date	Type	Shares Traded	Price Range
02/17/10	Automatic Sell	2,250	45.75
02/15/10	Disposition (Non Open Market)	7,528	45.24
02/15/10	Acquisition (Non Open Market)	99,050	0.00
01/20/10	Automatic Sell	2,250	44.76
01/04/10	Automatic Sell	97,000	48.05
01/04/10	Option Execute	85,000	32.27
12/15/09	Automatic Sell	2,250	45.27
12/08/09	Disposition (Non Open Market)	3,063	44.75
12/07/09	Disposition (Non Open Market)	3,644	44.63
11/17/09	Automatic Sell	2,250	43.91
10/20/09	Automatic Sell	2,250	44.78
09/15/09	Automatic Sell	2,250	48.13
09/14/09	Disposition (Non Open Market)	10,934	48.01
09/08/09	Automatic Sell	30,000	47.54
09/08/09	Option Execute	30,000	32.27
08/28/09	Automatic Sell	30,500	44.74
08/28/09	Option Execute	25,000	32.27
08/18/09	Automatic Sell	2,250	41.33
07/21/09	Automatic Sell	2,250	38.63
07/01/09	Automatic Sell	3,500	39.15
06/09/09	Automatic Sell	2,250	37.80
05/26/09	Automatic Sell	2,250	32.85
04/29/09	Automatic Sell	15,750	32.85
02/15/09	Acquisition (Non Open Market)	123,934	0.00
12/08/08	Disposition (Non Open Market)	3,063	17.70
12/07/08	Disposition (Non Open Market)	3,644	17.76
09/19/08	Automatic Sell	2,250	32.85
09/14/08	Disposition (Non Open Market)	9,369	31.20
08/12/08	Automatic Sell	2,250	34.53
07/08/08	Automatic Sell	2,250	34.22
06/10/08	Automatic Sell	1,750	34.92
05/13/08	Automatic Sell	1,750	35.77
04/08/08	Automatic Sell	1,750	32.82
03/11/08	Automatic Sell	1,750	28.80
02/15/08	Acquisition (Non Open Market)	50,000	0.00
02/12/08	Automatic Sell	1,750	32.52
01/08/08	Automatic Sell	1,750	33.33
12/11/07	Automatic Sell	1,750	38.86
12/08/07	Disposition (Non Open Market)	3,063	38.20
12/07/07	Acquisition (Non Open Market)	40,000	0.00
12/07/07	Disposition (Non Open Market)	7,289	38.20
11/13/07	Automatic Sell	1,750	38.35
10/09/07	Automatic Sell	1,750	42.82
10/01/07	Automatic Sell	10,000	43.32
10/01/07	Option Execute	10,000	32.27
09/14/07	Disposition (Non Open Market)	9,034	40.23
09/11/07	Automatic Sell	1,750	38.53
08/14/07	Automatic Sell	1,750	36.09

Dave Welland

Silicon Laboratories Fellow

Mr. Welland co-founded Silicon Laboratories in August 1996 and served as Vice President and director since the company's inception. From November 1991 until founding Silicon Laboratories, Mr. Welland held various positions at Crystal Semiconductor/Cirrus Logic, including Senior Design Engineer. Mr. Welland holds a B.S. in electrical engineering from the Massachusetts Institute of Technology.

H. Berry Cash

Mr. Cash has served as a director of Silicon Laboratories since June 1997. He has served as general partner of InterWest Partners, a venture capital firm, since 1986. Mr. Cash currently serves on the Board of Directors of the following public companies: i2 Technologies, a provider of intelligent e-business and marketplace solutions; Ciena Corporation, a designer and manufacturer of dense wavelength division multiplexing systems for fiber optic networks; Argonaut Group Inc., a specialty insurance company; First Acceptance Corp, a provider of low-cost auto insurance; and Staktek, Inc., a semiconductor assembly company. Mr. Cash holds a B.S. in electrical engineering from Texas A&M University and a M.B.A. from Western Michigan University.

Member of the Nominating and Governance Committee
Member of the Compensation Committee

Holdings: 273,955 shares     View Transactions

Date	Type	Shares Traded	Price Range
08/14/09	Sell	1,500	41.28
04/23/09	Acquisition (Non Open Market)	5,388	0.00
02/09/09	Sell	2,200	25.02
11/06/08	Sell	500	25.34
05/06/08	Sell	20,000	33.80
10/30/07	Sell	5,000	43.03
08/31/07	Sell	10,000	35.33
08/22/07	Sell	1,300	35.00

Nelson Chan

Mr. Chan was most recently president and chief executive officer of Magellan, a leading maker of GPS devices for consumer and professional applications. His 25 year career includes experience in semiconductors, systems and consumer electronics. Mr. Chan spent 15 years at SanDisk as it grew to over $4 billion in revenue, eventually running the company's consumer business as executive vice president and general manager. Mr. Chan's leadership of rapidly growing businesses in highly competitive markets along with his insight into key industry segments and geographies align well with Silicon Laboratories' emerging business opportunities.

Member of the Compensation Committee

Holdings: 5,388 shares     View Transactions

Date	Type	Shares Traded	Price Range
04/23/09	Acquisition (Non Open Market)	5,388	0.00

Robert Ted Enloe III

Mr. Enloe is currently the president and chief executive officer of Optisoft, Inc., a leading provider of intelligent traffic signal platforms. Mr. Enloe formerly served as vice chairman and member of the office of chief executive of Compaq Computer Corporation. He also served as president of Lomas Financial Corporation and Liberté Investors for more than 15 years. Mr. Enloe is currently a director of Leggett & Platt, Inc. and previously served as a director of the Federal Reserve Bank of Dallas. Mr. Enloe serves on the Board of Directors of Live Nation, the world's leading live entertainment company. Mr. Enloe holds a B.S. in engineering from Louisiana Polytechnic University and a J.D. from Southern Methodist University.

Chair of the Audit Committee
Chair of the Compensation Committee

Holdings: 5,388 shares     View Transactions

Date	Type	Shares Traded	Price Range
04/23/09	Acquisition (Non Open Market)	5,388	0.00

Kris Onken

Ms. Onken recently retired as CFO from Logitech, a multi-billion dollar maker of electronics peripherals. Ms. Onken's 35 year career includes senior finance roles at Fujitsu PC and Sun Microsystems. She currently serves on the Board of Directors for Singapore-based Biosensors International. Ms. Onken's experience managing financial and administrative functions at large multi-national companies and her background in corporate governance and Board committee leadership make her an ideal fit for Silicon Laboratories' Board of Directors.

Member of the Audit Committee

Holdings: 5,388 shares     View Transactions

Date	Type	Shares Traded	Price Range
04/23/09	Acquisition (Non Open Market)	5,388	0.00

Larry G Walker PhD

Mr. Walker's 25-year history in the high-tech industry began at Hewlett Packard where he rose from IC designer to the manager of a design group working on a CMOS chip design for handheld computers. At Hewlett Packard, Mr. Walker was also part of the team researching the design of analog chips in CMOS. In 1981, Mr. Walker joined Digital Equipment Corporation where he served in several positions including vice president of manufacturing technology, vice president of network engineering and vice president and general manager of the network products business where he successfully drove revenue growth rates up to mid-double-digits. Mr. Walker co-founded and served as chief executive officer of C-Port Corporation, a pioneer in the network processor industry, which was acquired by Motorola for $430 million in 2000. Following the acquisition, he served as vice president of strategy for Motorola's Network and Computing Systems Group and then vice president and general manager of the Network and Computing Systems Group until 2002. Mr. Walker has been awarded five patents and has been published in numerous industry publications. He also serves as a director of McData Corporation, Propagate Networks, Massachusetts Telecommunications Council and Hopkins School (Connecticut). Mr. Walker received a bachelor's degree in electrical engineering from Princeton University, and he received a master's degree in electrical engineering and a PhD from the Massachusetts Institute of Technology (MIT).

Member of the Audit Committee
Member of the Nominating and Governance Committee
Chair of the Compensation Committee

Holdings: 5,416 shares     View Transactions

Date	Type	Shares Traded	Price Range
04/23/09	Acquisition (Non Open Market)	5,388	0.00

William Wood

Mr. Wood has served as a director of Silicon Laboratories since March 1997. Since 1984, Mr. Wood has been a general partner, and for certain funds created since 1996, a special limited partner, of various funds associated with Austin Ventures, a venture capital firm. Since 1996, Mr. Wood has also served as general partner of Silverton Partners, an investment firm. Mr. Wood serves on the Board of Directors of Crossroads Systems, a provider of storage routers for storage area networks. Mr. Wood holds a B.A. in history from Brown University and an M.B.A. from Harvard University.

Member of the Audit Committee
Member of the Compensation Committee

Holdings: 161,164 shares     View Transactions

Date	Type	Shares Traded	Price Range
01/15/10	Automatic Sell	5,000	45.57
01/15/10	Option Execute	5,000	31.00
12/15/09	Automatic Sell	5,000	45.25
12/15/09	Option Execute	5,000	31.00
11/16/09	Automatic Sell	5,000	43.26
11/16/09	Option Execute	5,000	31.00
10/15/09	Automatic Sell	5,000	47.34
10/15/09	Option Execute	5,000	31.00
09/15/09	Automatic Sell	5,000	48.11
09/15/09	Option Execute	5,000	31.00
08/28/09	Automatic Sell	25,000	45.00
08/17/09	Automatic Sell	5,000	40.70
08/17/09	Option Execute	5,000	31.00
07/22/09	Automatic Sell	25,000	40.00
06/01/09	Automatic Sell	25,000	35.00
05/05/09	Automatic Sell	25,000	33.78
04/23/09	Acquisition (Non Open Market)	5,388	0.00
05/07/08	Automatic Sell	15,275	35.01
05/06/08	Automatic Sell	9,725	35.00
05/01/08	Automatic Sell	25,000	33.50
10/25/07	Automatic Sell	25,000	45.00
09/14/07	Automatic Sell	25,000	40.00