Goodwill and Intangible Assets (Tables)

12 Months Ended

Jan. 27, 2013

Schedule of Goodwill and Intangible Assets [Line Items]

Goodwill balances

Goodwill balances as of January 27, 2013 and January 29, 2012 are presented below:

(in thousands)	Carrying Amount
Balance as of January 29, 2012	$	129,651
Acquisition of Gennum Corporation	261,891
Acquisition of Cycleo SAS	2,042
Balance as of January 27, 2013	$	393,584

Schedule of discounted cash flow inputs

Specifically, the income approach valuations included the following assumptions:

Discount rate	10.0% - 13.0%
Perpetual growth rate	3.0%
Tax rate	14.7% - 20.0%
Risk-free rate	2.4%
Peer company beta	1.3 - 1.6

Schedule of finite-lived intangible assets

The following table sets forth the Company’s finite-lived intangible assets resulting from business acquisitions and technology licenses purchased, which continue to be amortized:

		January 27, 2013							January 29, 2012
(in thousands)	Estimated Useful Life	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Core technologies	2-10 years	$	173,724	$	(40,867	)	$	132,857	$	65,900	$	(21,031	)	$	44,869
Customer relationships	7-10 years	40,130		(7,736		)	32,394		12,130		(2,929		)	9,201
Technology licenses (1)	5-10 years	8,164		(1,056		)	7,108		3,000		(250		)	2,750
Other intangibles assets	1-5 years	6,600		(4,601		)	1,999		—		—			—
Total finite-lived intangible assets		$	228,618	$	(54,260	)	$	174,358	$	81,030	$	(24,210	)	$	56,820

(1) Technology licenses relate to licensing agreements entered into by the Company. Amortization expense related to technology licenses is reported as “Product development and engineering” in the consolidated statements of income.

Future amortization expense for intangible assets

The estimated annual amount of future amortization expense for finite-lived intangible assets will be as follows:

(in thousands)
To be recognized in:	Technology license		Sierra Monolithics		Gennum		Cycleo		Total
Fiscal year 2014	$	1,507	$	8,870	$	18,778	$	1,007	$	30,162
Fiscal year 2015	1,465		8,870		18,132		1,007		29,474
Fiscal year 2016	1,436		8,870		17,586		1,007		28,899
Fiscal year 2017	1,186		8,870		17,499		1,007		28,562
Fiscal year 2018	776		8,160		17,499		1,007		27,442
Thereafter	738		8,490		20,510		81		29,819
Total expected amortization expense	$	7,108	$	52,130	$	110,004	$	5,116	$	174,358

Schedule of indefinite-lived intangible assets

The following table sets forth the Company’s indefinite-lived intangible assets resulting from business acquisitions:

	January 27, 2013							January 29, 2012
(in thousands)	Gross Carrying Amount		Accumulated Impairment Loss			Net Carrying Amount		Gross Carrying Amount		Accumulated Impairment Loss			Net Carrying Amount
In-process research and development	$	34,870	$	(3,170	)	$	31,700	$	12,370	$	(2,470	)	$	9,900
Total indefinite-lived intangible assets	$	34,870	$	(3,170	)	$	31,700	$	12,370	$	(2,470	)	$	9,900

Schedule of in-process research and development impairment

(in thousands)	Net Carrying
In-process research and development impairment	Amount		Impairment
High-speed switching technology for power management applications (1)	$	2,070	$	(2,070	)
Integrated driver for telecommunications applications (2)	400		(400		)
Total	$	2,470	$	(2,470	)

(1) related to the February 2009 Leadis Technology Inc. acquisition.

(2) related to the December 2009 Sierra Monolithics, Inc. acquisition.

Gennum

Schedule of Goodwill and Intangible Assets [Line Items]

Schedule of fair value of core technologies

The nature of Gennum’s core technology was categorized as follows:

	January 27, 2013
(in thousands)	Fair Value		Estimated Useful Life
Underlying intellectual property - Clock and data recovery	$	31,000	8 years
Video broadcast and surveillance	39,000		7-8 years
Optical communication	21,000		6 years
Other	4,100		6-7 years
Total	$	95,100