VCO input voltage impedance?

Discussion in 'The Projects Forum' started by ezgihiz, Aug 11, 2008.

  1. ezgihiz

    Thread Starter New Member

    Aug 11, 2008
    4
    0
    Hi all
    What should be the input voltage impedance and frequency of VCO (using CD4046)

    I also wonder what ir the significance of input impedance? when I use it?
     
  2. beenthere

    Retired Moderator

    Apr 20, 2004
    15,815
    282
    The data sheet for the 4046 will give that parameter. The significance of input impedance is a broad topic. For your possible application, it should be high to prevent distorting the input signal.

    You can not avoid using input impedance - it is a part of the circuit. You can adjust the impedance to alter or preserve the input signal.
     
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