• DocumentCode
    1033732
  • Title

    Reconfigurable ADCs enable smart radios for 4G wireless connectivity

  • Author

    Rusu, Ana ; de Llera González, Delia Rodríguez ; Ismail, Mohammed

  • Author_Institution
    R. Inst. of Technol., Stockholm
  • Volume
    22
  • Issue
    3
  • fYear
    2006
  • Firstpage
    6
  • Lastpage
    11
  • Abstract
    A reconfigurable ADC based on a 2-2 modified cascaded SigmaDelta modulator designed for a GSM/WCDMA/WLAN/WiMAX zero-IF receiver has been presented. Employing the second-order feedforward SigmaDelta modulator in a 2-2 modified cascaded configuration, a high linearity over 100 kHz/2 MHz/10 MHz signal bandwidth is achieved. The P-DWA technique is applied in the first feedback 4-b DAC to eliminate the spurious tones associated with the multibit DAC nonlinearity in the WLAN/WiMAX modes
  • Keywords
    4G mobile communication; WiMax; cellular radio; radio receivers; sigma-delta modulation; wireless LAN; 10 MHz; 100 kHz; 2 MHz; 4G wireless connectivity; GSM; P-DWA technique; SigmaDelta modulator; WCDMA; WLAN; WiMAX; memory devices; pseudo-data-weighted-averaging technique; reconfigurable ADC; smart radios; zero-IF receiver; Bandwidth; Circuits; Communication standards; Digital filters; GSM; Multiaccess communication; Satellite broadcasting; WiMAX; Wireless LAN; Wireless communication;
  • fLanguage
    English
  • Journal_Title
    Circuits and Devices Magazine, IEEE
  • Publisher
    ieee
  • ISSN
    8755-3996
  • Type

    jour

  • DOI
    10.1109/MCD.2006.1657844
  • Filename
    1657844
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1033732