Consolidated Statements Of Operations (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Jun. 28, 2013	Jun. 29, 2012	Jun. 28, 2013	Jun. 29, 2012
Net revenue	$ 436.1	$ 389.0	$ 1,315.0	$ 1,147.5
Cost of goods sold	247.9	223.7	757.5	658.1
Gross profit	188.2	165.3	557.5	489.4
Operating expenses:
Research and development	56.6	56.1	171.0	155.9
Selling, general and administrative	40.3	37.5	118.1	120.6
Amortization of intangibles	7.0	8.6	22.4	24.3
Restructuring and other charges	0	1.1	6.4	7.8
Total operating expenses	103.9	103.3	317.9	308.6
Operating income	84.3	62.0	239.6	180.8
Interest expense	0	0	0	(0.5)
Other income (expense), net	0.2	0.1	(0.9)	(0.1)
Income before income taxes	84.5	62.1	238.7	180.2
Provision for income taxes	18.8	12.8	44.8	39.7
Net income	$ 65.7	$ 49.3	$ 193.9	$ 140.5
Earnings per share:
Basic (in dollars per share)	$ 0.35	$ 0.26	$ 1.03	$ 0.76
Diluted (in dollars per share)	$ 0.34	$ 0.26	$ 1.01	$ 0.74
Weighted average shares:
Basic (in shares)	186.6	186.3	188.2	185.1
Diluted (in shares)	191.2	192.5	192.8	191.1