Exhibit 31.1
CERTIFICATION OF CHIEF EXECUTIVE OFFICER
PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002
I, Dr. Paramesh Gopi, President and Chief Executive Officer, certify that:
1. I have reviewed this Quarterly Report on Form 10-Q/A of Applied Micro Circuits Corporation; and
2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report.
| /S/ PARAMESH GOPI |
Dr. Paramesh Gopi President and Chief Executive Officer |
Date: September 4, 2009