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Convention Paper

Multi-Functional Oversampling Digital Filter LSI for Digital Audio Use

Authors: Takeda, Minoru; Tohyama, Akira

AES Convention 3r · Paper 2686 · July 1988

Abstract

Oversampling D/A conversion systems are widely used in digital audio equipment to improve reproduction audio signal quality. The authors have developed an 8-times oversampling digital filter CMOS LSI with higher performance and several other functions in a chip. 8-times oversampling (interpolation) digital FIR (Finite Impulse Response) filtering, digital de-emphasis IIR (Infinite Impulse Response) filtering and digital attenuation are the main functions of this LSI. This paper describes the system construction and performance and the digital signal processing of the developed digital filter LSI.

Details

Published in
AES Convention 3r
AES Convention
3r
Paper number
2686
Publication date
July 6, 1988
Affiliation
Nippon Precision Circuits Ltd. (NPC), Tokyo, Japan (See document for exact affiliation information.)
Type
Convention Paper