Condensed Consolidated Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Dec. 28, 2014	Dec. 29, 2013	Dec. 28, 2014	Dec. 29, 2013
Income Statement [Abstract]
Net revenues	$ 111,087	$ 122,996	$ 214,896	$ 237,828
Cost of sales:
Cost of goods sold	37,535	42,109	74,151	81,800
Amortization of core and developed technology intangible assets	6,355	6,239	12,709	12,399
Patent litigation settlement, damages and royalties	2,090	2,358	3,815	3,855
Total cost of sales	45,980	50,706	90,675	98,054
Gross profit	65,107	72,290	124,221	139,774
Operating expenses:
Engineering and development	33,680	42,020	67,320	82,431
Selling and marketing	16,090	19,849	32,742	38,941
General and administrative	6,456	10,407	13,545	20,036
Amortization of other intangible assets	576	1,603	1,176	3,207
Total operating expenses	56,802	73,879	114,783	144,615
Operating income (loss)	8,305	(1,589)	9,438	(4,841)
Non-operating income (expense), net:
Interest income	2	16	3	20
Interest expense	(2,409)	(1,148)	(4,793)	(1,150)
Other (expense) income, net	(27)	(135)	(395)	17
Total non-operating (expense) income, net	(2,434)	(1,267)	(5,185)	(1,113)
Income (loss) before income taxes	5,871	(2,856)	4,253	(5,954)
Income tax provision	1,549	1,171	650	1,714
Net income (loss)	$ 4,322	$ (4,027)	$ 3,603	$ (7,668)
Net income (loss) per share:
Basic (dollars per share)	$ 0.06	$ (0.05)	$ 0.05	$ (0.09)
Diluted (dollars per share)	$ 0.06	$ (0.05)	$ 0.05	$ (0.09)
Number of shares used in per share computations:
Basic (in shares)	71,459	86,881	71,250	89,162
Diluted (in shares)	73,122	86,881	72,920	89,162