• DocumentCode
    3419614
  • Title

    On Gm-boosting and cyclostationary noise mechanisms in low-voltage CMOS differential Colpitts VCOs

  • Author

    Koukab, Adil ; Amiri, Omid Talebi

  • Author_Institution
    Swiss Fed. Inst. of Technol. in Lausanne (EPFL), Lausanne, Switzerland
  • fYear
    2012
  • fDate
    16-18 Jan. 2012
  • Firstpage
    65
  • Lastpage
    68
  • Abstract
    This paper presents a theoretical study of CMOS differential Colpitts VCOs. The objective is to provide a deep understanding of the different mechanisms that impact the performances of these VCOs, namely the Gm-boosting and cyclostationary noise. The developed methodology and expressions can be used to analyze, optimize and build new VCO topologies. A novel topology with an optimized gate to source (GS) feedback is proposed. It exhibits a figure of merit (FOM) better than -190 dBc/Hz/mW for all the frequency offsets.
  • Keywords
    CMOS analogue integrated circuits; voltage-controlled oscillators; Gm boosting; cyclostationary noise mechanism; low voltage CMOS differential Colpitts VCO; Phase noise; Switching circuits; Topology; Transconductance; Transistors; Voltage-controlled oscillators; Colpitts; Voltage-controlled oscillator (VCO); flicker noise; phase noise; thermal noise;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Silicon Monolithic Integrated Circuits in RF Systems (SiRF), 2012 IEEE 12th Topical Meeting on
  • Conference_Location
    Santa Clara, CA
  • Print_ISBN
    978-1-4577-1317-0
  • Type

    conf

  • DOI
    10.1109/SiRF.2012.6160136
  • Filename
    6160136
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3419614