• DocumentCode
    1276451
  • Title

    An accurate center frequency tuning scheme for 450-KHz CMOS Gm -C bandpass filters

  • Author

    Yamazaki, Hiroshi ; Oishi, Kazuaki ; Gotoh, Kunihiko

  • Author_Institution
    Fujitsu Labs. Ltd., Kawasaki, Japan
  • Volume
    34
  • Issue
    12
  • fYear
    1999
  • fDate
    12/1/1999 12:00:00 AM
  • Firstpage
    1691
  • Lastpage
    1697
  • Abstract
    This paper describes a center frequency tuning technique for a second intermediate-frequency (IF) bandpass filter. The utilization of the step signal response ensures the direct measurement of the center frequency. This tuning technique guarantees the accuracy of the design. A 450-kHz Gm-C bandpass filter tuned using this technique has been developed to integrate the IF module for personal digital cellular (PDC) handsets for use in 0.35-μm CMOS. The filter with the tuning scheme achieves a center frequency accuracy of ±0.5%
  • Keywords
    CMOS analogue integrated circuits; band-pass filters; circuit tuning; continuous time filters; step response; 0.35 micron; 450 kHz; CMOS Gm-C bandpass filter; IF module; center frequency tuning; personal digital cellular handset; step signal response; Band pass filters; CMOS technology; Circuit optimization; Cutoff frequency; Energy consumption; Frequency measurement; Master-slave; Phase locked loops; Tuning; Uncertainty;
  • fLanguage
    English
  • Journal_Title
    Solid-State Circuits, IEEE Journal of
  • Publisher
    ieee
  • ISSN
    0018-9200
  • Type

    jour

  • DOI
    10.1109/4.808894
  • Filename
    808894
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1276451