• DocumentCode
    439511
  • Title

    A 2.7 50MHz IF-sampling DS-modulator with +37dBV IIP3for digital cellular phones

  • Author

    Lindfors, Saska ; Länsirinne, Mika ; Halonen, Kari

  • Author_Institution
    Radio electronics laboratory, KTH
  • fYear
    2000
  • fDate
    19-21 Sept. 2000
  • Firstpage
    232
  • Lastpage
    235
  • Abstract
    The design and experimental results of a 2.7V 50MHz switched-capacitor ΔΣ-modulator with a 2nd -order loop filter are presented. The circuit is targeted for the IF-section of a radio receiver in a digital cellular phone. It combines frequency downconversion with analog to digital conversion by directly sampling an input signal from an intermediate frequency of 50MHz. The measured peak SNR for a 100kHz signal band is 81dB with a 53MHz blocking signal. The dynamic range is 88dB and the measured IIP3with 50.38MHz and 50.8MHz interferers is +36.9dBV.
  • Keywords
    Capacitors; Cellular phones; Circuits; Frequency; Low-noise amplifiers; Noise shaping; Operational amplifiers; Sampling methods; Switches; Voltage;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Solid-State Circuits Conference, 2000. ESSCIRC '00. Proceedings of the 26rd European
  • Conference_Location
    Stockholm, Sweden
  • Type

    conf

  • Filename
    1471254
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=439511