Exhibit 99

SILICON LABORATORIES RESULTS EXCEED EXPECTATIONS

—Company Reports Strong Quarterly Performance and Outlook—

AUSTIN, Texas — July 25, 2012 — Silicon Laboratories Inc. (Nasdaq: SLAB), a leader in high-performance, analog-intensive, mixed-signal integrated circuits (ICs), today reported second quarter revenue of $135.7 million, an impressive eight percent sequential increase.  GAAP and non-GAAP diluted earnings per share of $0.47 and $0.51, respectively, also exceeded expectations and represented significant growth.

Financial Highlights

Second quarter revenue was a company record and resulted from growth across the company’s major product categories. On a GAAP-basis, gross margin improved to 61.0 percent. R&D investment increased to $34.2 million and SG&A expense was $32.2 million. Resulting GAAP operating income was 12.1 percent. Diluted GAAP earnings per share increased by 42 percent sequentially to 47 cents, due in part to a tax reserve release.

The following non-GAAP results exclude the impact of stock compensation and other one-time items.  Significant strength in the company’s Broad-based products improved the gross margin mix, resulting in gross margin of 61.3 percent for the quarter.  R&D increased to $31.3 million due to a record quarter of new product activity, and SG&A increased slightly to $24.4 million.  Operating income, therefore, was better than expected at 20.2 percent of revenue. Strong revenue growth and margin expansion provided significant earnings leverage resulting in diluted earnings per share of 51 cents, a 19 percent sequential increase.  Reconciling charges are set forth in the financial measures table included below.

The company ended the quarter with $323 million in cash, cash equivalents and investments due to continued healthy cash flow from operations.

Business Highlights

All three of the company’s major product categories, Access, Broadcast and Broad-based, grew sequentially in the second quarter.

Within the Broad-based business, the company’s timing and MCU products posted record quarters as the company began shipping into new applications in storage, security, and test and measurement.  Both product lines also posted record design wins, indicating strength in the revenue pipeline and supporting the continued market share gains driving the outperformance versus the end markets.

The company’s wireless products increased over 50 percent in the quarter and are expected to contribute meaningfully to future growth with the addition of the Ember products acquired early in the third quarter.  When combined with the company’s emerging 32-bit MCU portfolio, the company anticipates having the industry’s strongest offering for embedded wireless devices.

The Broadcast business increased in the second quarter driven by audio products, which were up meaningfully due to seasonal builds of consumer radios. The video business was also solid, coming in about flat to the record high in the first quarter. The Access products saw growth across voice over IP, modems and Power over Ethernet applications.

“Our business is hitting on all cylinders, underscoring the strength of our portfolio and ability to gain market share,” said Tyson Tuttle, president and CEO of Silicon Laboratories. “We’re focusing on developing products that address some of the most significant trends impacting the industry. The global build-out of infrastructure to support growing bandwidth needs, the emergence of the Internet of Things, and the increasing importance of energy efficient and green technology all require analog-intensive, mixed-signal ICs.”

The company expects revenue for the third quarter to increase to $140 to $145 million.

Webcast and Conference Call

A conference call discussing the quarterly results will follow this press release at 7:30 a.m. central time. An audio webcast will be available simultaneously on Silicon Laboratories’ website under Investor Relations (www.silabs.com).  A replay will be available after the call at the same website listed above or by calling 1 (855) 859-2056 or +1 (404) 537-3406 (international) and by entering 99916472. The replay will be available through August 8th.

About 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 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.

Forward-Looking Statements

This press release contains forward-looking statements based on Silicon Laboratories’ current expectations. The words “believe,” “estimate,” “expect,” “intend,” “anticipate,” “plan,” “project,” “will” and similar phrases as they relate to Silicon Laboratories are intended to identify such forward-looking statements. These forward-looking statements reflect the current views and assumptions of Silicon Laboratories and are subject to various risks and uncertainties that could cause actual results to differ materially from expectations. Among the factors that could cause actual results to differ materially from those in the forward-looking statements are the following: risks that Silicon Laboratories may not be able to maintain its historical growth; quarterly fluctuations in revenues and operating results; volatile stock price; average selling prices of products may decrease significantly and rapidly; difficulties developing new products that achieve market acceptance; dependence on a limited number of products and customers; intellectual property litigation risks; inventory-related risks; risks associated with acquisitions; difficulties managing international activities; difficulties managing our manufacturers and subcontractors; risks that Silicon Laboratories may not be able to manage strains associated with its growth; credit risks associated with our accounts receivable; dependence on key personnel;

risks associated with divestitures; geographic concentration of manufacturers, assemblers, test service providers and customers in Asia that subjects Silicon Laboratories’ business and results of operations to risks of natural disasters, epidemics, war and political unrest; the competitive and cyclical nature of the semiconductor industry and other factors that are detailed in Silicon Laboratories’ filings with the SEC. Silicon Laboratories disclaims any intention or obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise.

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

CONTACT: Silicon Laboratories Inc., Shannon Pleasant, (512) 464 9254, shannon.pleasant@silabs.com

Silicon Laboratories Inc.

Condensed Consolidated Statements of Income

(In thousands, except per share data)

(Unaudited)

	Three Months Ended						Six Months Ended
	June 30,2012			July 2,2011			June 30,2012			July 2,2011
Revenues	$	135,670		$	126,197		$	261,372		$	245,833
Cost of revenues	52,868			49,985			103,474			97,463
Gross margin	82,802			76,212			157,898			148,370
Operating expenses:
Research and development	34,245			34,173			67,175			69,533
Selling, general and administrative	32,178			26,055			57,580			57,914
Operating expenses	66,423			60,228			124,755			127,447
Operating income	16,379			15,984			33,143			20,923
Other income (expense):
Interest income	363			473			860			1,044
Interest expense	(32		)	(5		)	(65		)	(10		)
Other income (expense), net	1,079			164			968			373
Income before income taxes	17,789			16,616			34,906			22,330
Provision (benefit) for income taxes	(2,720		)	3,244			77			10,918
Net income	$	20,509		$	13,372		$	34,829		$	11,412
Earnings per share:
Basic	$	0.48		$	0.30		$	0.82		$	0.26
Diluted	$	0.47		$	0.29		$	0.80		$	0.25
Weighted-average common shares outstanding:
Basic	42,655			44,602			42,556			44,435
Diluted	43,423			45,951			43,637			45,998

Unaudited Reconciliation of GAAP to Non-GAAP Financial Measures

(In thousands, except per share data)

	Three Months Ended June 30, 2012
Non-GAAP Income Statement Items	GAAP Measure		GAAP Percent of Revenue		Stock Compensation Expense *		Termination Costs		Acquisition Related Items		Non-GAAP Measure		Non-GAAP Percent of Revenue
Revenues	$	135,670
Gross margin	82,802		61.0	%	$	317	$	—	$	—	$	83,119	61.3	%
Research and development	34,245		25.2	%	2,954		—		—		31,291		23.1	%
Selling, general and administrative	32,178		23.7	%	3,340		3,946		483		24,409		18.0	%
Operating income	16,379		12.1	%	6,611		3,946		483		27,419		20.2	%

	Three Months Ended June 30, 2012
Non-GAAP Diluted Earnings Per Share	GAAP Measure		Stock Compensation Expense *		Termination Costs		Acquisition Related Items		Release of Unrecognized Tax Benefits			Non-GAAP Measure
Net income	$	20,509	$	5,846	$	2,729	$	483	$	(7,265	)	$	22,302
Diluted shares outstanding	43,423											43,423
Diluted earnings per share	$	0.47										$	0.51

*              Excludes stock compensation recognized in connection with terminations costs for our former CEO.

Silicon Laboratories Inc.

Condensed Consolidated Balance Sheets

(In thousands, except per share data)

(Unaudited)

	June 30, 2012			December 31,2011
Assets
Current assets:
Cash and cash equivalents	$	173,753		$	94,964
Short-term investments	138,147			212,526
Accounts receivable, net of allowances for doubtful accounts of $669 at June 30, 2012 and $725 at December 31, 2011	72,666			55,351
Inventories	35,977			34,778
Deferred income taxes	6,170			11,563
Prepaid expenses and other current assets	48,152			43,867
Total current assets	474,865			453,049
Long-term investments	11,028			17,477
Property and equipment, net	23,468			25,141
Goodwill	115,489			115,489
Other intangible assets, net	55,447			60,005
Other assets, net	40,977			34,830
Total assets	$	721,274		$	705,991
Liabilities and Stockholders’ Equity
Current liabilities:
Accounts payable	$	36,383		$	26,354
Accrued expenses	30,955			30,857
Deferred income on shipments to distributors	26,334			24,962
Income taxes	707			665
Total current liabilities	94,379			82,838
Long-term obligations and other liabilities	9,700			24,214
Total liabilities	104,079			107,052
Commitments and contingencies
Stockholders’ equity:
Preferred stock—$0.0001 par value; 10,000 shares authorized; no shares issued and outstanding	—			—
Common stock—$0.0001 par value; 250,000 shares authorized; 41,941 and 42,068 shares issued and outstanding at June 30, 2012 and December 31, 2011, respectively	4			4
Additional paid-in capital	—			14,749
Retained earnings	618,839			586,653
Accumulated other comprehensive loss	(1,648		)	(2,467		)
Total stockholders’ equity	617,195			598,939
Total liabilities and stockholders’ equity	$	721,274		$	705,991

Silicon Laboratories Inc.

Condensed Consolidated Statements of Cash Flows

(In thousands)

(Unaudited)

	Six Months Ended
	June 30,2012			July 2,2011
Operating Activities
Net income	$	34,829		$	11,412
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation of property and equipment	6,749			6,680
Amortization of other intangible assets and other assets	4,559			6,077
Stock-based compensation expense	15,865			18,074
Income tax benefit from employee stock-based awards	2,627			2,083
Excess income tax benefit from employee stock-based awards	(2,450		)	(1,963		)
Deferred income taxes	1,625			181
Changes in operating assets and liabilities:
Accounts receivable	(17,315		)	(23,562		)
Inventories	(1,299		)	2,022
Prepaid expenses and other assets	4,806			(1,021		)
Accounts payable	8,766			259
Accrued expenses	(5,203		)	(2,841		)
Deferred income on shipments to distributors	1,372			5,157
Income taxes	(13,672		)	3,672
Net cash provided by operating activities	41,259			26,230
Investing Activities
Purchases of available-for-sale investments	(105,169		)	(75,856		)
Proceeds from sales and maturities of marketable securities	186,514			104,831
Purchases of property and equipment	(5,095		)	(5,058		)
Purchases of other assets	(7,919		)	(665		)
Acquisition of businesses, net of cash acquired	—			(27,262		)
Net cash provided by (used in) investing activities	68,331			(4,010		)
Financing Activities
Proceeds from issuance of common stock, net of shares withheld for taxes	2,922			2,489
Excess income tax benefit from employee stock-based awards	2,450			1,963
Repurchases of common stock	(36,173		)	(23,241		)
Payments on debt	—			(7,174		)
Net cash used in financing activities	(30,801		)	(25,963		)
Increase (decrease) in cash and cash equivalents	78,789			(3,743		)
Cash and cash equivalents at beginning of period	94,964			138,567
Cash and cash equivalents at end of period	$	173,753		$	134,824

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