• DocumentCode
    1810801
  • Title

    A 57-dB image band rejection CMOS Gm-C polyphase filter with automatic frequency tuning for Bluetooth

  • Author

    Shi, Bo ; Shan, Weiyun ; Andreani, Pietro

  • Author_Institution
    Center for Wireless Commun., Singapore, Singapore
  • Volume
    5
  • fYear
    2002
  • fDate
    2002
  • Abstract
    A 7th order polyphase Gm-C IF filter with automatic frequency tuning, implemented in a 0.35μm CMOS process, is presented. The filter has a center frequency of 3MHz and a passband of 1MHz. The image band rejection is higher than 57dB, the stop band attenuation is at least 40dB. The in-band spurious free dynamic range is around 53dB. On-chip automatic frequency tuning provides more than 240% center frequency range (i.e., 1.6MHz-3.9MHz) of the filter. The filter is well suited for employment in the Bluetooth short-range radio.
  • Keywords
    CMOS analogue integrated circuits; active filters; band-pass filters; circuit tuning; wireless LAN; 0.35 micron; 1.6 to 3.9 MHz; 3 MHz; Bluetooth short-range radio; CMOS; Gm-C polyphase filter; automatic frequency tuning; center frequency; image band rejection; in-band spurious free dynamic range; passband; stop band attenuation; Attenuation; Automatic frequency control; Band pass filters; Inverters; Parasitic capacitance; Passband; Transconductance; Transconductors; Tuning; Voltage;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Circuits and Systems, 2002. ISCAS 2002. IEEE International Symposium on
  • Print_ISBN
    0-7803-7448-7
  • Type

    conf

  • DOI
    10.1109/ISCAS.2002.1010667
  • Filename
    1010667
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1810801