Testing Differential Signal Output

Discussion in 'The Projects Forum' started by ManeeshaN, Feb 17, 2010.

  1. ManeeshaN

    Thread Starter New Member

    Feb 17, 2010
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    Currently using AM26C31ID differential line driver for generating differential signals.
    I need to test these differential signal output.Can I used LEDs for this purpose?Will the Differential voltage diff be enough to drive them.

    Or is there any other method by which I can check these signals like may be using a comparator.
    Pls reply.Its kind of urgent.
     
  2. beenthere

    Retired Moderator

    Apr 20, 2004
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  3. russ_hensel

    Well-Known Member

    Jan 11, 2009
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    What do you mean test? What test equipment do you have?

    I would drive one side with a signal and ground the other input. Output should then be the input signal and the input signal inverted.

    Then I would drive both inputs with the same signal. Both outputs should be 0.

    Actually it looks like your chip offsets the signals from 0, that is it is not ballanced around 0 as the usual differential amp is.
     
    Last edited: Feb 17, 2010
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