• DocumentCode
    3641846
  • Title

    A contribution to the 2nd-order LP filters design

  • Author

    Pravoslav Martinek;Milan Valenta;Daša Tichá

  • Author_Institution
    Dept. of Circuit Theory, Czech Technical University, Technická
  • fYear
    2011
  • fDate
    4/1/2011 12:00:00 AM
  • Firstpage
    1
  • Lastpage
    4
  • Abstract
    This paper discusses some aspects of design and realization of the simple second-order low-pass building blocks (LP-SFB), suitable for less demanding anti-aliasing and reconstruction filters. The main attention is devoted to the ”single active device” solutions, based on CC-II type current conveyor or transconductance amplifier (OTA). As the template, the Rauch´s multiple-feedback circuit was used. Presented SFBs show very low ω0 and Q sensitivities and, in contrast to the known Sallen-Key circuits, save good stop-band attenuation. Proposed design uses DE algorithm and allows almost independent tunning of ω0 and Q parameters.
  • Keywords
    "Sensitivity","Algorithm design and analysis","Signal processing","Resistance","Transfer functions","Signal processing algorithms","Frequency response"
  • Publisher
    ieee
  • Conference_Titel
    Radioelektronika (RADIOELEKTRONIKA), 2011 21st International Conference
  • Print_ISBN
    978-1-61284-325-4
  • Type

    conf

  • DOI
    10.1109/RADIOELEK.2011.5936460
  • Filename
    5936460