• DocumentCode
    2257538
  • Title

    A compact digital amplitude modulator in 90nm CMOS

  • Author

    Chironi, V. ; Debaillie, B. ; Baschirotto, A. ; Craninckx, J. ; Ingels, M.

  • Author_Institution
    Dept.of Innovation Eng., Univ. of Salento, Lecce, Italy
  • fYear
    2010
  • fDate
    8-12 March 2010
  • Firstpage
    702
  • Lastpage
    705
  • Abstract
    This paper presents a 90 nm CMOS digital amplitude modulator for polar transmitter. It reaches an output power of -2.5 dBmRMS using a WLAN OFDM 64QAM modulation at 2.45GHz achieving -26.1 dB EVM and 18% efficiency. To reduce the aliases due to the discrete-time to continuous-time conversion a 2-fold interpolation has been implemented. The amplitude modulator has a segmented architecture. This results in a very compact 0.007 mm2 chip area.
  • Keywords
    CMOS integrated circuits; OFDM modulation; amplitude modulation; interpolation; wireless LAN; 2-fold interpolation; CMOS digital amplitude modulator; WLAN OFDM 64QAM modulation; compact digital amplitude modulator; continuous-time conversion; discrete-time conversion; frequency 2.54 GHz; polar transmitter; size 90 nm; Amplitude modulation; Bandwidth; Clocks; Digital modulation; Interpolation; OFDM modulation; Power amplifiers; Power generation; Radiofrequency amplifiers; Transmitters;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Design, Automation & Test in Europe Conference & Exhibition (DATE), 2010
  • Conference_Location
    Dresden
  • ISSN
    1530-1591
  • Print_ISBN
    978-1-4244-7054-9
  • Type

    conf

  • DOI
    10.1109/DATE.2010.5457112
  • Filename
    5457112
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=2257538