• DocumentCode
    2823804
  • Title

    A transmitter CMOS VCO for WCDMA/EDGE

  • Author

    Andreani, Pietro ; Kozmin, Kirill ; Sandrup, Per ; Mattsson, Thomas

  • Author_Institution
    ST-Ericsson, Lund, Sweden
  • fYear
    2010
  • fDate
    14-16 Sept. 2010
  • Firstpage
    146
  • Lastpage
    149
  • Abstract
    A VCO is implemented in an RF 90nm CMOS process and covers the frequency range 2.55-4.08GHz. Drawing 19mA from 1.2V, the phase noise at 20MHz frequency offset from a 3.7GHz carrier is -156dBc/Hz, meeting the phase noise requirement for GSM. A second version of the VCO covers an additional 4.90-5.75GHz range, at the expense of a higher phase noise in the added band. In this way, all WCDMA/EDGE bands can be synthesized by a single VCO.
  • Keywords
    CMOS integrated circuits; cellular radio; code division multiple access; phase noise; radio transmitters; radiofrequency integrated circuits; voltage-controlled oscillators; EDGE band; GSM; RF CMOS process; WCDMA band; current 19 mA; frequency 2.55 GHz to 4.08 GHz; frequency 20 MHz; frequency 3.7 GHz; frequency 4.90 GHz to 5.75 GHz; phase noise; size 90 nm; transmitter CMOS VCO; voltage 1.2 V; Coils; GSM; Inductors; Multiaccess communication; Phase noise; Spread spectrum communication; Voltage-controlled oscillators;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    ESSCIRC, 2010 Proceedings of the
  • Conference_Location
    Seville
  • ISSN
    1930-8833
  • Print_ISBN
    978-1-4244-6662-7
  • Type

    conf

  • DOI
    10.1109/ESSCIRC.2010.5619854
  • Filename
    5619854
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=2823804