Active and digital ladder-based allpass filters
作者:
Li Ping,
J.I.Sewell,
期刊:
IEE Proceedings G (Circuits, Devices and Systems)
(IET Available online 1990)
卷期:
Volume 137,
issue 6
页码: 439-445
年代: 1990
DOI:10.1049/ip-g-2.1990.0066
出版商: IEE
数据来源: IET
摘要:
Ladder-based allpass filters are extended for activeRLC, activeRC, SC and digital realisations. The resulting circuits have the attractive properties of parallel structure and very low amplitude sensitivity to component changes. The analogue implementations are canonical with respect to the number of op amps and the digital ones are multiplier canonic. Detailed examples are given for SC designs and these are critically assessed for capacitance spread and sensitivity.
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