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Convention Paper

Area Efficient Decimation Filter for an 18-Bit Delta-Sigma Analog-to-Digital Converter

Authors: Lin, Kun; Paulos, John

AES Convention 98 · Paper 3989 · February 1995

Abstract

The paper describes a multistage decimation filter which consists of seven-cascaded comb filters and a 50-tap single-stage finite-impulse response filter. A novel, multirate comb filter structure is used to reduce the date path width. The coefficients of the FIR filter are optimally quanticized to canonical-signed-digit form to realize a multiplier-free (shift-and-add) implementation with a single accumulator and a 256Fs master clock.

Details

Published in
AES Convention 98
AES Convention
98
Paper number
3989
Publication date
February 6, 1995
Session subject
Audio Signal Processing
Affiliation
Crystal Semiconducter Corporation, Austin, TX (See document for exact affiliation information.)
Type
Convention Paper