Switched capacitor networks : a novel prewarping procedure

Novel methods for prewarping filter specifications prior to realization. in Switched Capacitor (SC) form are presented. These allow the design of arbitrary response requirements, exhibiting a low amount of error that normally results from the frequency warping associated with sampled-data networks. Adjustment is applied to the pole and zero locations of a reference filter, using three distinct approaches (Center frequency "CF", Selectivity "S" and Complex Mapping "CM" pole/zero prewarping), developed for both the Lossless Discrete Integrator (LOI) and Bilinear (Bil) analog to digital transformations. The derivation of the prewarping expressions is explained with reference to these mappings, and the effect they have on the apparent pole and zero locations of an SC filter realization.

Grantor dc:publisher.institution

Department of Electrical Engineering

Year dc:date.issued

1985

Author dc:creator

• Campbell, Charles Robert Weston

Advisor dc:contributor.advisor

• Reineck, K M

Language dc:language.iso

eng

Handle dc:identifier.uri

http://hdl.handle.net/11427/7586

OAI identifier oai:identifier

oai:open.uct.ac.za:11427/7586