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LMK04828: LVPECL single-ended unbalanced

Jejomar Ildefonso
Expert 8590 points
Part Number: LMK04828

Hi Team,

Our customer would like to use the SYNC/SYSREF feature of the LMK04828 to generate trigger pulses from the SDCLK* outputs and use each output to drive a single-ended, 50ohm coaxial cable off-board.

Unfortunately our customer does not have access in a simulation tool that supports IBIS. Is there any reference material on TI on how to implement this?

Thanks in advance for your help.


Kind Regards,

Jejomar


  • 0
    TI__Mastermind 27581 points

    Jejomar,

    Other than the datasheet and TICSPro software, I do not think so.

    If you want to use 1/2 of an LVPECL, just terminate the unused side such that it looks like the same loading as the side that you use.

    If in continuous mode, then you can AC couple this.  If not in continuous SysRef mode, then you can send some pulses to bias up the AC coupling cap, and then send your single shot pulse (or a few pulses).

    Regards,
    Dean