Title :
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
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;
Conference_Titel :
Circuits and Systems, 2005. ISCAS 2005. IEEE International Symposium on
Print_ISBN :
0-7803-8834-8
DOI :
10.1109/ISCAS.2005.1465007
