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Convention Paper

VLSI Implementation of a One-Stage 64:1 FIR Decimator

Authors: Andreas, David

AES Convention 89 · Paper 2976 · September 1990

Abstract

Commercially available Delta-Sigma A/D converters decimate a high-rate input signal in multiple steps using several moving average type FIRs. A stereo digital Decimator Chip has been designed and fabricated which reduces the sample rate of a 1 bit input signal by a factor of 64 in one stage, using a 4096 tap lowpass FIR. The chip has been fabricated in 1.6u CMOS, having a die size of 210mil x 262mil (excluding scribe area), and is capable of running at input sample rates up to 3.6mhz. The internal logic of the VLSI is discussed.

Details

Published in
AES Convention 89
AES Convention
89
Paper number
2976
Publication date
September 6, 1990
Session subject
Sigma-Delta Converter Technology
Affiliation
Ensoniq Corporation, Malvern, PA (See document for exact affiliation information.)
Type
Convention Paper