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Convention Paper

A Simple Approximation for the Distortion in a Pulse-Width-Modulation Digital-to-Analogue Converter

Authors: Hewitt, Alan

AES Convention 103 · Paper 4598 · September 1997

Abstract

A simple sampled data model is presented which usefully approximates the nonlinear distortion introduced in a pulse width modulation digital-to-analogue converter. It is derived from an infinite model whose output complex spectrum exactly matches that of the modulator up to half the sampling frequency. An oversampled audio example illustrates the quality of the approximation.

Details

Published in
AES Convention 103
AES Convention
103
Paper number
4598
Publication date
September 6, 1997
Session subject
Amplifiers and Attenuators
Affiliation
University of Portsmouth, Portsmouth, Hampshire, UK (See document for exact affiliation information.)
Type
Convention Paper