• DocumentCode
    1314564
  • Title

    Triangularly weighted zero-crossing detector providing ΣΔ frequency-to-digital conversion

  • Author

    Hovin, M.E. ; Lande, T.S. ; Wisland, D.T. ; Kiaei, S.

  • Author_Institution
    Dept. of Inf., Oslo Univ., Norway
  • Volume
    33
  • Issue
    13
  • fYear
    1997
  • fDate
    6/19/1997 12:00:00 AM
  • Firstpage
    1121
  • Lastpage
    1122
  • Abstract
    It is shown that for delta-sigma (ΣΔ) frequency-to-digital conversion (FDC) there is no need for a ΣΔ modulator, since a limited FM signal itself may be considered as an asynchronous ΣΔ bit-stream. By feeding the limited FM signal directly to a sinc2 ΣΔ decimator, a triangularly weighted zero-crossing counter FDC is introduced, providing ΣΔ noise shaping. The results measured confirm the theory
  • Keywords
    detector circuits; frequency modulation; sigma-delta modulation; ΣΔ frequency-to-digital conversion; ΣΔ noise shaping; asynchronous ΣΔ bit-stream; delta-sigma conversion; limited FM signal; sinc2 ΣΔ decimator; triangularly weighted zero-crossing detector;
  • fLanguage
    English
  • Journal_Title
    Electronics Letters
  • Publisher
    iet
  • ISSN
    0013-5194
  • Type

    jour

  • DOI
    10.1049/el:19970732
  • Filename
    600968
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1314564