Title :
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
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;
Journal_Title :
Circuits, Devices and Systems, IEE Proceedings -
DOI :
10.1049/ip-cds:20040816
