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A novel approach for the automatic tuning of continuous time filters

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3 Author(s)
Silva-Martinez, J. ; Elektrotechniek Dept., Katholieke Univ. Leuven, Heverlee, Belgium ; Steyaert, M. ; Sansen, Willy

This approach uses a charge comparison principle for the tuning of the pole frequency (ω0) and the pulse response of a biquadratic filter for tuning the filter quality factor (𝒬). Both frequency and 𝒬 tuning are performed at lower frequency than the pole frequencies. Thus, these techniques reduce the tuning signal feedthrough in bandpass filters. The 𝒬 tuning includes the filter high-frequency effects. Simulated results and breadboard experimental results are presented and discussed

Published in:

Circuits and Systems, 1991., IEEE International Sympoisum on

Date of Conference:

11-14 Jun 1991

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