General synthesis of complex analogue filters

Author

Cuypers, C. ; Voo, N.Y. ; Teplechuk, M. ; Sewell, J.I.

Author_Institution

Dept. of Electron. & Electr. Eng., Univ. of Glasgow, UK

Volume

152

Issue

1

fYear

2005

Firstpage

7

Lastpage

15

Abstract

General methods for the synthesis of complex band-pass and band-stop analogue filters are developed for implementation by active-RC, gm-C, switched-capacitor (SC) and switched-current (SI) techniques. These principles are extended to synthesis procedures for log-domain complex realisations. Circuits for filters and group delay equalisers are presented for both ladder and cascade-biquad realisations. These have been incorporated into the filter design software XFILTER. Various designs are compared, noise and sensitivity responses being shown.

Keywords

analogue circuits; band-pass filters; band-stop filters; network synthesis; switched capacitor filters; switched current circuits; XFILTER filter design software; active-RC technique; band-pass analogue filters; band-stop analogue filters; cascade-biquad realisation; complex analogue filters; general synthesis methods; gm-C technique; group delay equaliser; log-domain complex realisation; sensitivity response; switched-capacitor technique; switched-current technique;

fLanguage

English

Journal_Title

Circuits, Devices and Systems, IEE Proceedings -

Publisher

iet

ISSN

1350-2409

Type

jour

DOI

10.1049/ip-cds:20040816

Filename

1413675