Connect with us

65 Mhz jitter measurement

Discussion in 'Electronic Equipment' started by Antonio Pasini, Dec 3, 2003.

Scroll to continue with content
  1. I'd like to measure jitter (cycle by cycle, rms, pk-pk) on a LVCMOS
    oscillator, 65 Mhz.

    I have is a Tek 3054B...

    I didn't found a clear explanation on tek website of the options I could
    purchase, if any...

    What could I use ?

    Low cost is a concern... :)
  2. Bill Janssen

    Bill Janssen Guest

    One way is to compare a delayed signal and the non delayed signal in a
    mixer. The output of the mixer
    is the jitter signal.

    Use a splitter to get two signals with the same phase. Use a section of
    able to delay one
    signal 45 degrees. Compare those signals using a double balanced mixer.
    The output signal
    the can be displayed on a scope or AC meter etc.

    Good luck.

    Bill K7NOM
  3. JS

    JS Guest

    The 3054B has a very short memory and no statistics on the measurements
    it takes. It has a pretty high trigger jitter - around 300 ps or greater
    which is why the cleanest signal gets pretty wide and thick when you
    watch it with persistence turned on.

    Perhaps you can rent or borrow a scope already programmed to take
    jitter measurements?

    Some of the concerns and recent developments related to jitter
    measurements are posted at in the Scope FAQ

    Best regards,

  4. I'd like to measure jitter (cycle by cycle, rms, pk-pk) on a LVCMOS
    Agree, will be the best solution. I'm already looking around...
    The link is very interesting, also.

  5. ddwyer

    ddwyer Guest

    For the purposes of comparison I would suggest a frequency domain
    measurements i.e. a synthesised receiver or spectrum analyzer or perhaps
    just a modulation meter.
    Look at the residual fm.
    conversion from frequency to time domain to be made employing Alan
    See mr Allen's excellent web page
Ask a Question
Want to reply to this thread or ask your own question?
You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.
Electronics Point Logo
Continue to site
Quote of the day