Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Mar. 30, 2013	Dec. 29, 2012
Current assets:
Cash and cash equivalents	$ 105,494	$ 118,536
Short-term marketable securities	73,550	64,865
Accounts receivable, net	55,984	46,947
Inventories	43,755	44,194
Prepaid expenses and other current assets	14,020	12,806
Total current assets	292,803	287,348
Property and equipment, less accumulated depreciation	40,596	40,384
Long-term marketable securities	4,717	4,717
Other long-term assets	8,795	6,854
Intangible assets, net of amortization	14,694	15,430
Goodwill	44,808	44,808
Deferred income taxes	28,617	29,218
Total assets	435,030	428,759
Current liabilities:
Accounts payable and accrued expenses	37,132	36,391
Accrued payroll obligations	8,125	6,149
Deferred income and allowances on sales to sell-through distributors	11,656	10,553
Total current liabilities	56,913	53,093
Long-term liabilities	18,101	18,116
Total liabilities	75,014	71,209
Commitments and contingencies
Stockholders' equity:
Preferred stock, $.01 par value, 10,000,000 shares authorized, none issued and outstanding	0	0
Common stock, $.01 par value, 300,000,000 shares authorized, 115,529,000 and 115,500,000 shares issued and outstanding	1,155	1,155
Paid-in capital	621,986	621,170
Accumulated other comprehensive loss	(501)	(261)
Accumulated deficit	(262,624)	(264,514)
Total stockholders' equity	360,016	357,550
Total liabilities and stockholders' equity	$ 435,030	$ 428,759