• DocumentCode
    1914366
  • Title

    A new self Q-tuning scheme for biquad OTA-C filters

  • Author

    Font, J. ; Isern, E. ; Roca, M. ; Picos, R. ; Garcia-Moreno, E.

  • Author_Institution
    Phys. Dept., Univ. of Balearic Islands, Palma de Mallorca, Spain
  • fYear
    2012
  • fDate
    14-17 March 2012
  • Firstpage
    1
  • Lastpage
    5
  • Abstract
    A new Q-tuning scheme for biquad OTA-C filters is presented. We have taken benefit of the advantages of the classical Phase-Locked Loop scheme to tune the center frequency and we have also applied it to Q-tuning. The unique requirement for these biquad filters is that fo-tuning and Q-tuning must be uncoupled and independent. Tunability and versatility of OTAs have been fully exploited attaining quality factors with accuracy errors smaller than 1%.
  • Keywords
    biquadratic filters; operational amplifiers; phase locked loops; biquad OTA-C filters; biquad filters; center frequency; phase-locked loop scheme; self Q-tuning scheme; tunability; versatility; Conferences; Detectors; Phase frequency detector; Tuning; Voltage-controlled oscillators;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Devices, Circuits and Systems (ICCDCS), 2012 8th International Caribbean Conference on
  • Conference_Location
    Playa del Carmen
  • Print_ISBN
    978-1-4577-1116-9
  • Electronic_ISBN
    978-1-4577-1115-2
  • Type

    conf

  • DOI
    10.1109/ICCDCS.2012.6188926
  • Filename
    6188926
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1914366