On the design of tone-free ΣΔ modulators

Lars Risbo

    Research output: Contribution to journalJournal articlepeer-review

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    Abstract

    Traditional one-bit ΣΔ modulators used for A/D and D/A conversion produce very predominant tones near half the sample rate which might intermodulate in the analog converter section and cause in-band tones. This paper demonstrates how the use of chaos can substitute dither as a means for extinguishing these tones. Especially, modulator feedback filters derived from noise transfer functions having an all-pass term seem very promising
    Original languageEnglish
    JournalIEEE transactions on circuits and systems - 2, Analog and digital signal processing
    Volume42
    Issue number1
    Pages (from-to)52-55
    ISSN1057-7130
    DOIs
    Publication statusPublished - 1995

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    Copyright: 1995 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE

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