LTC1562-2/LC filter Design Help

Discussion in 'The Projects Forum' started by jhk3h2, Oct 8, 2010.

  1. jhk3h2

    Thread Starter New Member

    Oct 7, 2010
    I am trying to design a bandpass filter with LTC1562-2 IC.
    I have to have approximately 20dB gain, narrow bandwidth (5k~10kHz).
    I tried to test a design with filter CAD from linear devices website.
    The center frequency I have to use is 245kHz.

    My results were not very satisfying.
    I could only get around 30kHz bandwidth.

    my alternate solution for this is designing LC filter with PSpice.
    I have attached the circuit and the waveform that I got (Fc=245kHz).
    again, main goal is to get 20dB gain and narrow bandwidth of 5k~10kHz if possible.