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What is the min frequency of cdclvd1212 can support?

wangzhi
Prodigy 150 points
Other Parts Discussed in Thread: CDCLVD1212

I want to use cdclvd1212 to transfer one signal with 2 second period .

But I find that the output signal of cdclvd1212. So,  is the frequency too low to transfer?

intput: LVDS

output: LVDS

  • 0
    TI__Mastermind 28530 points

    I don't see an issue using the CDCLVD1212 in this use case.  However I would recommend that you use only DC coupling.

    wangzhi said:
    But I find that the output signal of cdclvd1212. So,  is the frequency too low to transfer?


    Are you saying you've tried using the CDCLVD1212 at your low frequency, but it did not work?  Were you AC coupled?

    73,
    Timothy

  • 0 in reply to Timothy T
    Prodigy 150 points

    Sorry, I describe wrong about my issue.

    The fact is that "But I cannot find the signal on the output pin of CDCLVD1212".

    The input and output of CDCLVD1212 are all DC coupled.

  • 0 in reply to Timothy T
    Prodigy 150 points
    Sorry, I made a mistake again.
    I carefully check the output link of the CDCLVD1212, and I find that it's AC coupled and without 100Ω parallel resistor.
    The output signal was sent to the other board, so I didn't notice it at first.
    When I changed to the DC coupled and 100Ω parallel resistor added, the output signal was got!
    Thanks very much!