LSI implementation of a programmable FIR digital filter

Author

Kadowaki, Yukio ; Matsuoka, Shigeki ; Nakamura, Shogo

Author_Institution

Ricoh Co. Ltd., Osaka, Japan

fYear

1989

Firstpage

1259

Abstract

The implementation of a programmable FIR (finite impulse response) digital filter based on a generalized transversal filter structure consisting of tapped, cascaded, identical FIR subfilters is presented. The LSI chip includes 56 different filters. One of the desired filters can be selected by six external ins on the LSI. The specifications of each filter are as follows: (1) the passband ripple is less than 0.5 dB; (2) the attenuation in the stopband is more than 50 dB; and (3) the normalized transition band is less than 0.1. A maximum sampling rate of 1.11 MHz is realized by virtue of the parallel processing of the subfilters. The 5.0×5.5 mm² chip was fabricated using 1.5-μm double-level-metal CMOS technology

Keywords

CMOS integrated circuits; digital filters; large scale integration; 1.11 MHz; 1.5 micron; CMOS; LSI; attenuation; double-level-metal; finite impulse response; implementation; normalized transition band; passband ripple; programmable FIR digital filter; transversal filter; Attenuation; Band pass filters; CMOS technology; Digital filters; Finite impulse response filter; Large scale integration; Parallel processing; Passband; Sampling methods; Transversal filters;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 1989. ICASSP-89., 1989 International Conference on

Conference_Location

Glasgow

ISSN

1520-6149

Type

conf

DOI

10.1109/ICASSP.1989.266664

Filename

266664