Unaudited Reconciliation of GAAP to Non-GAAP Financial Measures

(In thousands, except per share data)

Non-GAAP Income
Statement Items

Three Months Ended

December 30, 2017

GAAP

Measure

GAAP

Percent of
Revenue

Stock

Compensation
Expense

Intangible
Asset
Amortization

Acquisition
Related
Items

Non-GAAP

Measure

Non-GAAP

Percent of
Revenue

Revenues

$201,018

Gross margin

119,264

59.3%

$     287

$      --

$  --

$119,551

59.5%

Research and

   development

52,735

26.2%

5,611

4,943

--

42,181

21.0%

Selling, general and

   administrative

40,139

20.0%

5,847

1,647

(110)

32,755

16.3%

Operating income

26,390

13.1%

11,745

6,590

(110)

44,615

22.2%

Non-GAAP
Earnings Per Share

Three Months Ended

December 30, 2017

GAAP

Measure

Stock

Compensation
Expense*

Intangible
Asset
Amortization*

Acquisition
Related
Items*

Non-cash
Interest
Expense*

Non-GAAP

Measure

Net income (loss)

$ (4,852)

$11,745

$6,590

$(110)

$2,748

$24,631

$40,752

GAAP

Measure

Dilutive Securities Excluded From GAAP Measure Due to Net Loss

Non-GAAP

Measure

Diluted shares

   outstanding

42,656

1,088

43,744

Diluted earnings

   (loss) per share

$   (0.11)

$    0.93

* Represents pre-tax amounts