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Convention Paper

A Sigma-Delta Digital Audio Power Amplifier-Design and FPGA Implementation

Authors: Magrath, Anthony J.; Clark, I. G.; Sandler, Mark B.

AES Convention 103 · Paper 4603 · September 1997

Abstract

We discuss the DSP design and implementation of a digital audio power amplifier using a FPGA. We concentrate on the sigma-delta modulator and associated bit-flipping architecture which is used to convert an oversampled PCM input signal into a 1'-bit code suitable for controlling a power switch. We discuss details of FPGA architecture and the optimizations required for implementation.

Details

Published in
AES Convention 103
AES Convention
103
Paper number
4603
Publication date
September 6, 1997
Session subject
Amplifiers and Attenuators
Affiliation
King's College London, Strand, London, UK (See document for exact affiliation information.)
Type
Convention Paper