• DocumentCode
    1672910
  • Title

    A low-phase-noise 0.004ppm/step DCXO with guaranteed monotonicity in 90nm CMOS

  • Author

    Lin, Jerry

  • Author_Institution
    Texas Instrum. Inc., Plano, TX, USA
  • fYear
    2005
  • Firstpage
    418
  • Abstract
    A 26MHz DCXO achieves phase noise of -140dBc/Hz at 1 kHz, -152dBc/Hz at 10kHz offset, and supply pushing of 0.5ppm/V. Frequency tuning is done by a pre-distorted 14b MOS capacitor DAC. Monotonicity of ∼0.004ppm/step across the entire 70ppm tuning range is guaranteed by a ΔΣ modulation scheme. The circuit occupies 0.18mm2 in 90nm CMOS.
  • Keywords
    CMOS integrated circuits; circuit tuning; crystal oscillators; delta-sigma modulation; digital-analogue conversion; phase noise; ΔΣ modulation; 26 MHz; 90 nm; CMOS; frequency tuning; guaranteed monotonicity; low-phase-noise DCXO; pre-distorted 14b MOS capacitor DAC; Automatic frequency control; Decoding; Instruments; Inverters; MIM capacitors; MOS capacitors; Oscillators; Phase noise; Threshold voltage; Tuning;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Solid-State Circuits Conference, 2005. Digest of Technical Papers. ISSCC. 2005 IEEE International
  • Conference_Location
    San Francisco, CA
  • ISSN
    0193-6530
  • Print_ISBN
    0-7803-8904-2
  • Type

    conf

  • DOI
    10.1109/ISSCC.2005.1494047
  • Filename
    1494047
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1672910