Commitments and Contingencies (Details) (USD $)	12 Months Ended								12 Months Ended
	Jun. 26, 2011 Real Estate and Equipment [Member]	Jun. 27, 2010 Real Estate and Equipment [Member]	Jun. 28, 2009 Real Estate and Equipment [Member]	Jun. 26, 2011 Power Control Systems [Member]	Jul. 01, 2007 Power Control Systems [Member]	Jun. 27, 2010 Power Control Systems [Member]	Jun. 28, 2009 Power Control Systems [Member]	Jun. 29, 2008 Power Control Systems [Member]	Jun. 26, 2011 Capital Expenditures [Member]	Jun. 26, 2011 Inventories Under 2011 Agreement [Member]	Feb. 03, 2011 Technology Acquisition [Member]
Operating lease, rent expense [Abstract]
Total rental expense on all operating leases	$ 9,800,000	$ 10,200,000	$ 11,500,000
Minimum fixed rentals required under operating leases [Abstract]
Fiscal year 2012	9,400,000
Fiscal year 2013	4,200,000
Fiscal year 2014	2,900,000
Fiscal year 2015	2,100,000
Fiscal year 2016	1,100,000
Thereafter	2,100,000
Total	21,800,000
Divested entities tax obligations [Abstract]
Provision recorded for certain tax obligations with respect to divested entities					18,600,000
Net release recorded in tax obligations related to divested entities				1,500,000
Balance of the divested entities tax obligations				4,000,000		5,500,000	7,300,000	20,700,000
Long-term Purchase Commitment [Line Items]
Outstanding purchase commitment amount									23,500,000
Number of external foundries with which agreements were made to secure wafer fabrication capacity										2
Amount advanced to the foundries on account of future purchases										5,800,000
Time period of agreements to purchase minimum quantities of wafers each quarter (in years)										2Y
Amount subject to provisions requiring forfeiture if minimum purchase commitment is not met										4,800,000
Business Acquisition, Contingent Consideration [Line Items]
Contingent consideration liability resulting from acquisition											$ 400,000