An oversampling filter LSI for digital audio has been developed and reported herewith, it is of the 95-Tap FIR type digital filter and has a passband ripple of ±0.01 dB and stopband attenuation of -85 dB. The digital filter was designed and evaluated through computer simulation. The LSI has an additional function of enabling attenuation of digital audio signals and is fabricated using 2 µm CMOS and realizes low power consumption.

Authors: Nagata, Atsushi; Seno, Takanori; Takayama, Tsuyoshi; Kubo, Junichi; Matsumoto, Michihiro; Abe, Tadashi
Affiliations: Matsushita Electric Industrial Co., Ltd., Osaka, Japan ; Matsushista Electronics Corporation, Kyoto, Japan(See document for exact affiliation information.)
AES Convention: 79 (October 1985) Paper Number: 2289
Publication Date: October 1, 1985
Subject: Signal Processing: Filters

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