EX-(a)(1)(v)

THE OFFER AND WITHDRAWAL RIGHTS WILL EXPIRE AT ONE MINUTE FOLLOWING

11:59 P.M. (12:00 MIDNIGHT), NEW YORK CITY TIME ON MONDAY, APRIL 3, 2017,

UNLESS THE OFFER IS EXTENDED OR EARLIER TERMINATED.

Enclosed for your consideration are the Offer to Purchase, dated March 7, 2017(as it may be amended or supplemented from time to time, the “Offer to Purchase”), and the related Letter of Transmittal (as it may be amended or supplemented from time to time, the “Letter of Transmittal”), which Offer to Purchase and Letter of Transmittal collectively constitute the “Offer.” Glider Merger Sub, Inc. (the “Purchaser”), a Delaware corporation and a wholly-owned subsidiary of Integrated Device Technology, Inc. (“IDT”), a Delaware corporation, is offering to purchase all of the outstanding shares of common stock, par value $0.001 per share, of GigPeak, Inc. (“GigPeak”), a Delaware corporation, including the associated purchase rights for Series A Junior Preferred Stock of GigPeak (the “Rights”) issued under the Rights Agreement, dated as of December 16, 2014, as amended, between GigPeak and American Stock Transfer & Trust Company, LLC, as rights agent (such Rights, together with the common stock, the “Shares”), at a price per Share of $3.08 in cash (the “Offer Price”), without interest, subject to any applicable withholding taxes, upon the terms and subject to the conditions set forth in the Offer to Purchase.

THE BOARD OF DIRECTORS OF GIGPEAK UNANIMOUSLY RECOMMENDS THAT

YOU TENDER ALL OF YOUR SHARES INTO THE OFFER.

We or our nominees are the holder of record of Shares held for your account. A tender of such Shares can be made only by us as the holder of record and pursuant to your instructions. The Letter of Transmittal accompanying this letter is furnished to you for your information only and cannot be used by you to tender Shares held by us for your account.

We request instructions as to whether you wish us to tender any or all of the Shares held by us for your account, upon the terms and subject to the conditions set forth in the enclosed Offer to Purchase and the Letter of Transmittal.

1. The Offer Price for your Shares is $3.08 per Share in cash, without interest, subject to any applicable withholding taxes.

3. The Offer is being made pursuant to the Agreement and Plan of Merger, dated as of February 13, 2017, by and among IDT, the Purchaser and GigPeak (as it may be amended, modified or supplemented from time to time in accordance with its terms, the “Merger Agreement”).

Subject to the satisfaction or waiver of certain conditions set forth in the Merger Agreement, the Purchaser will be merged with and into GigPeak (the “Merger”), with GigPeak continuing as the surviving corporation and as a wholly-owned subsidiary of IDT (the “Surviving Corporation”). The closing of the Merger will occur as soon as practicable and in any event no later than the second business day after the conditions set forth in the Merger Agreement are satisfied or waived, unless another date is agreed to by the parties. As soon as practicable following the consummation of the Offer, Purchaser will merge with and into GigPeak, with GigPeak surviving as a wholly-owned subsidiary of IDT, pursuant to the provisions of Section 251(h) of the General Corporation Law of the State of Delaware (“Delaware Law”), with no stockholder approval required to consummate the Merger.

At the effective time of the Merger (the “Effective Time”), each Share issued and outstanding immediately prior to the Effective Time will be converted into the right to receive cash in an amount equal to the Offer Price, without interest, subject to any applicable withholding taxes, except as provided in the Merger Agreement with respect to Shares owned by IDT, GigPeak or any of their direct or indirect wholly-owned subsidiaries or Shares held by any stockholder who is entitled to demand and properly has demanded appraisal for such Shares in accordance and full compliance with Section 262 of Delaware Law.

4. GigPeak’s Board of Directors has unanimously (i) determined that the Offer, the Merger and the Merger Agreement and the transactions contemplated by the Merger Agreement, are fair to and in the best interest of GigPeak and its stockholders; (ii) adopted and approved the Merger Agreement and the transactions contemplated thereby, including the Offer and the Merger; (iii) declared advisable the Merger Agreement and the transactions contemplated thereby, including the Offer and the Merger; and (iv) recommended that GigPeak’s stockholders accept the offer and tender their shares to us in the Offer and to the extent applicable, approve and adopt the Merger Agreement and any such transactions.

5. The Offer and withdrawal rights will expire at one minute following 11:59 P.M. (12:00 midnight), New York Time, on Monday, April 3, 2017 (such date and time, the “Expiration Date”), unless (i) the Purchaser extends the period during which the Offer is open pursuant to and in accordance with the terms of the Merger Agreement, in which event the term “Expiration Date” will mean the latest date and time at which the Offer, as so extended by the Purchaser, will expire or (ii) the Merger Agreement has been earlier terminated.

6. The Offer is not subject to any financing condition. The Offer is conditioned upon (i) there being validly tendered in the Offer and not properly withdrawn prior to the expiration date of the Offer, that number of Shares which, together with the number of Shares (if any) then owned by IDT or any of its wholly-owned direct or indirect subsidiaries, including the Purchaser, represents at least a majority of the Shares then outstanding (determined on a fully diluted basis) and no less than a majority of the voting power of the shares of capital stock of GigPeak then outstanding (determined on a fully diluted basis) and entitled to vote upon the adoption of the Merger Agreement and approval of the Merger (excluding from the number of tendered Shares, but not from the number of outstanding Shares, Shares tendered pursuant to guaranteed delivery procedures (to the extent such procedures are permitted by the Purchaser) that have not yet been delivered in settlement or satisfaction of such guarantee); (ii) the applicable waiting period under the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended, having expired or been terminated and (iii) the satisfaction or waiver by the Purchaser of the other conditions and requirements of the Offer described in the Offer to Purchase.

7. Stock transfer taxes with respect to the transfer and sale of any Shares will be withheld and deducted from the purchase price of such Shares purchased as set forth in Instruction 6 of the Letter of Transmittal.

If you wish to have us tender any or all of your Shares, then please so instruct us by completing, executing, detaching and returning to us the Instruction Form on the detachable part hereof. An envelope to return your instructions to us is enclosed. If you authorize tender of your Shares, then all such Shares will be tendered unless otherwise specified on the Instruction Form.

Your prompt action is requested. Your Instruction Form should be forwarded to us in ample time to permit us to submit the tender on your behalf before the Expiration Date.

The Offer is being made to all holders of the Shares. The Purchaser is not aware of any jurisdiction in which the making of the Offer or the acceptance thereof would be prohibited by securities, “blue sky” or other valid laws of such jurisdiction. If the Purchaser becomes aware of any U.S. state in which the making of the Offer or the acceptance of Shares pursuant thereto would not be in compliance with an administrative or judicial action taken pursuant to U.S. state statute, it will make a good faith effort to comply with any such law. If, after such good faith effort, it cannot comply with any such law, the Offer will not be made to (nor will tenders be accepted from or on behalf of) the holders of Shares in such jurisdiction. In any jurisdictions where applicable laws require the Offer to be made by a licensed broker or dealer, the Offer will be deemed to be made on behalf of Purchaser by one or more registered brokers or dealers licensed under the laws of such jurisdiction to be designated by Purchaser.

The undersigned acknowledge(s) receipt of your letter and the enclosed offer to purchase, dated March 7, 2017 (as it may be amended or supplemented from time to time, the “Offer to Purchase”), and the related letter of transmittal (as it may be amended or supplemented from time to time, the “Letter of Transmittal”), which Offer to Purchase and Letter of Transmittal collectively constitute the “Offer.” Glider Merger Sub, Inc. (the “Purchaser”), a Delaware corporation and a wholly-owned subsidiary of Integrated Device Technology, Inc. (“IDT”), a Delaware corporation, is offering to purchase all of the outstanding shares of common stock, par value $0.001 per share, of GigPeak, Inc. (“GigPeak”), a Delaware corporation, including the associated purchase rights for Series A Junior Preferred Stock of GigPeak (the “Rights”) issued under the Rights Agreement, dated as of December 16, 2014, as amended, between GigPeak and American Stock Transfer & Trust Company, LLC, as rights agent (such Rights, together with the common stock, the “Shares”), at a price of $3.08 per Share in cash (the “Offer Price”), without interest, subject to any applicable withholding taxes, upon the terms and subject to the conditions of the Offer. The Offer is being made pursuant to the Agreement and Plan of Merger, dated as February 13, 2017, by and among IDT, the Purchaser and GigPeak (as it may be amended, modified or supplemented from time to time in accordance with its terms, the “Merger Agreement”).

The undersigned hereby instruct(s) you to tender to the Purchaser the number of Shares indicated below or, if no number is indicated, all Shares held by you for the account of the undersigned, upon the terms and subject to the conditions set forth in the Offer. The undersigned understands and acknowledges that all questions as to the validity, form and eligibility (including time of receipt) and acceptance for payment of any tender of Shares made on my behalf will be determined by the Purchaser in its sole discretion.

The method of delivery of this Instruction Form is at the election and risk of the tendering stockholder. This Instruction Form should be delivered to us in ample time to permit us to submit the tender on your behalf prior to the Expiration Date (as defined in the Offer to Purchase).


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