Automatic tuning of quality factors for VHF CMOS filters

Bram Nauta, E. Seevinck, Evert Seevinck

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    Abstract

    A VHF transconductance-C filter technique with automatic tuning of the quality factors and the cutoff frequency, based on a voltage controlled oscillator (VCO), is presented. The Q-tuning circuit is very simple and contains no signal carrying nodes, resulting in a well-controlled Q up to very high frequencies (100 MHz). A breadboard realization of the Q-tuning circuit gave good results
    Original languageUndefined
    Title of host publicationISCAS'90
    Place of PublicationNew Orleans, USA
    PublisherIEEE
    Pages-
    Number of pages0
    DOIs
    Publication statusPublished - 1 May 1990

    Publication series

    Name
    PublisherIEEE
    Volume2

    Keywords

    • IR-17057
    • METIS-113942

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