Phase shifting digital input

Discussion in 'The Projects Forum' started by tonci, Oct 4, 2016.

  1. tonci

    Thread Starter New Member

    Sep 14, 2016
    6
    0
    It`s project about phase shifting DIGITAL input on 80 MHz MAX. The idea is that I need to control phase shifting on some way. Anyone have idea please.
    I google a lot and find some ideas but it`s about phase shifting sinus signal. Anyone have some electrical scheme or any idea about that??

    Thanks a lot,

    Tonci
     
  2. AlbertHall

    Well-Known Member

    Jun 4, 2014
    1,968
    387
    A phase shift is simply a time difference so adding a non-inverting buffer shifts the phase due to its propagation delay. For longer delays, an RC integrator followed by a schmidt trigger will do the job. These produce a time delay so the phase shift in degrees will change if the input frequency changes. It all depends on exactly what you want.
     
  3. tonci

    Thread Starter New Member

    Sep 14, 2016
    6
    0
    Thanks a lot but I need to change phase on the same frequency, not to change phase with frequency.

    Once again,

    thanks


    Tonci
     
  4. Ramussons

    Active Member

    May 3, 2013
    557
    92
    No issue. Simply change the RC time constant for different phase shifts. The frequency can be constant.
     
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