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DIGITALLY CONTROLLED RF FRONT END STGAE IN RADIO RECEIVERS

Discussion in 'Electronic Design' started by RealInfo, Feb 11, 2013.

  1. RealInfo

    RealInfo Guest

    Hi all

    How exactly the tuned circuit of the the RF stage
    in a digitally controlled radio reciver is controlled .

    I understand that the local oscilator is based on a PLL , which is controlled by some micro controller .

    My question is how the front end tuned circuit is tuned to
    the relevant frequency which is local oscillator freq +/- IF freq ?

    Thanks
    Elico
     
  2. RealInfo

    RealInfo Guest

    Thanks
    Elico
     
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