UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a) of the

Securities Exchange Act of 1934

(Amendment No.   )

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¨ Preliminary Proxy Statement

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¨ Definitive Proxy Statement

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¨ Soliciting Material Pursuant to §240.14a-12

Applied Micro Circuits Corporation

(Name of Registrant as Specified In Its Charter)

(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

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*** Exercise Your Right to Vote *** Important Notice Regarding the Availability of Proxy Materials for the Shareholder Meeting to Be Held on August 14, 2012. APPLIED MICRO CIRCUITS CORPORATION Meeting Information Meeting Type: Annual Meeting For holders as of: June 18, 2012 Date: August 14, 2012 Time: 10:00 a.m., PDT Location: Applied Micro Circuits Corporation Corporate Headquarters 215 Moffett Park Drive Sunnyvale, CA 94089 215 MOFFETT PARK DRIVE SUNNYVALE, CA 94089 M48093-P28623 You are receiving this communication because you hold shares in the above named company. This is not a ballot. You cannot use this notice to vote these shares. This communication presents only an overview of the more complete proxy materials that are available to you on the Internet. You may view the proxy materials online at www.proxyvote.com or easily request a paper copy (see reverse side). We encourage you to access and review all of the important information contained in the proxy materials before voting. See the reverse side of this notice to obtain proxy materials and voting instructions.

Before You Vote How to Access the Proxy Materials Proxy Materials Available to VIEW or RECEIVE: Proxy Materials Available to VIEW or RECEIVE: NOTICE AND PROXY STATEMENT/10-K COMBO ANNUAL REPORT How to View Online: Have the information that is printed in the box marked by the arrow (located on the following page) and visit: www.proxyvote.com. How to Request and Receive a PAPER or E-MAIL Copy: If you want to receive a paper or e-mail copy of these documents, you must request one. There is NO charge for requesting a copy. Please choose one of the following methods to make your request: 1) BY INTERNET: www.proxyvote.com 2) BY TELEPHONE: 1-800-579-1639 3) BY E-MAIL*: sendmaterial@proxyvote.com * If requesting materials by e-mail, please send a blank e-mail with the information that is printed in the box marked by the arrow (located on the following page) in the subject line. XXXX XXXX XXXX XXXX XXXX XXXX Requests, instructions and other inquiries sent to this e-mail address will NOT be forwarded to your investment advisor. Please make the request as instructed above on or before July 31, 2012 to facilitate timely delivery. M48094-P28623 How To Vote Please Choose One of the Following Voting Methods Vote In Person: Many shareholder meetings have attendance requirements including, but not limited to, the possession of an attendance ticket issued by the entity holding the meeting. Please check the meeting materials for any special requirements for meeting attendance. At the meeting, you will need to request a ballot to vote these shares. Vote By Internet: To vote now by Internet, go to www.proxyvote.com. Have the information that is printed in the box marked by the arrow available and follow the instructions. Vote By Mail: You can vote by mail by requesting a paper copy of the materials, which will include a proxy card. XXXX XXXX XXXX

Voting Items THE BOARD OF DIRECTORS RECOMMENDS A VOTE FOR EACH OF THE NOMINEES LISTED BELOW 1. To elect as Directors of Applied Micro Circuits Corporation the nominees listed below. 1a. Cesar Cesaratto 1b. H.K. Desai 1c. Paramesh Gopi, Ph.D. 1d. Paul R. Gray, Ph.D. 1e. Fred Shlapak 1f. Robert F. Sproull, Ph. D. 1g. Arthur B. Stabenow THE BOARD OF DIRECTORS RECOMMENDS A VOTE FOR PROPOSAL 2 2. To ratify the selection of KPMG LLP as the Company’s independent registered public accounting firm for the fiscal year ending March 31, 2013. THE BOARD OF DIRECTORS RECOMMENDS A VOTE FOR PROPOSAL 3 3. To adopt and approve the Applied Micro Circuits Corporation 2012 Employee Stock Purchase Plan and to reserve up to 1,800,000 shares of Common Stock for issuance thereunder. THE BOARD OF DIRECTORS RECOMMENDS A VOTE FOR PROPOSAL 4 4. To approve by advisory vote the executive compensation described in the Proxy Statement. To conduct any other business properly brought before the meeting. M48095-P28623

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