Complex wave filters and wave group-delay equalisers in log-domain

Author

Teplechuk, M.A. ; Sewell, J.I.

Author_Institution

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

fYear

2005

fDate

23-26 May 2005

Firstpage

1996

Abstract

Two new classes of wave derived log-domain circuits are presented: complex wave filters and wave allpass group-delay equalisers. Log-domain circuits offer a low-power property while wave derived circuits inherit a low-sensitivity property from the ladder prototypes and are less prone to transistor nonidealities. Important design properties are examined and the performance of the derived circuits are assessed with simulation in typical BJT and HBT SiGe BiCMOS technologies. The design procedures have been incorporated into XFILTER design software.

Keywords

BiCMOS digital integrated circuits; circuit CAD; equalisers; integrated circuit design; ladder filters; low-power electronics; sensitivity; wave digital filters; BJT SiGe BiCMOS technologies; HBT SiGe BiCMOS technologies; SiGe; allpass group-delay equalisers; complex wave filters; design software; ladder prototypes; log-domain circuits; low-power property; low-sensitivity property; wave group-delay equalisers; BiCMOS integrated circuits; Circuit simulation; Equalizers; Filters; Germanium silicon alloys; Heterojunction bipolar transistors; Prototypes; Silicon germanium; Software design; Software prototyping;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2005. ISCAS 2005. IEEE International Symposium on

Print_ISBN

0-7803-8834-8

Type

conf

DOI

10.1109/ISCAS.2005.1465007

Filename

1465007