A new dynamic element matching scheme for very high performance audio DACs has been developed. The elements have binary weighted values that allow increased resolution at the multi-bit sigma-delta output without requiring an excessive number of elements. This has allowed a low order multi-bit sigma-delta modulator to be used with the result of low out of band noise. A new evaluation test has been employed to compare the performance of this architecture with existing architectures.

Authors: Hossack, David; Frith, Peter; Hayes, Julian; Jackson, Angus
Affiliation: Wolfson Microelectronics, Edinburgh, Scotland
AES Conference: UK 16th Conference: Silicon for Audio (April 2001)
Paper Number: uk082
Publication Date: April 1, 2001
Subject: Silicon for Audio

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