EXHIBIT 23.1


              CONSENT OF ERNST & YOUNG LLP, INDEPENDENT AUDITORS

We consent to the incorporation by reference in the Registration Statement on
Form S-8 pertaining to the Raleigh Technology Corp. Equity Compensation Plan of
our report dated April 19, 2000, with respect to the consolidated financial
statements and schedule of Applied Micro Circuits Corporation, included in its
Annual Report on Form 10-K for the fiscal year ended March 31, 2000, filed with
the Securities and Exchange Commission.

                                /s/ Ernst & Young LLP
                                ----------------------
                                    ERNST & YOUNG LLP


San Diego, California
March 13, 2001