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CDCLVP1102: What is the propagation delay temperature coefficient of this part

Nathan Baltz
Prodigy 40 points
Part Number: CDCLVP1102

Tool/software:

Hi, 

Does anyone have the temperature coefficient of propagation delay for this differential PECL input dual differential PECL output part? 

Nathan

  • 0
    TI__Expert 8231 points

    Nathan,

    Unfortunately we do not have this data.  But the typical propagation delay is around 350 ps and minimum delay is 280 ps.  I hope this helps.

    Regards,

    Will

  • 0 in reply to William Pfennigwerth
    Prodigy 40 points

    Hi William, 

    Are those numbers of 350ps typical and 280ps minimum over the full temperature range [-40C, 85C]? 

    I see that in the datasheet it also gives a maximum propagation delay of 450ps over full temperature range [-40C, 85C]. 

    To try to put a bound on this, it would mean that the propagation delay TempCo is about (450ps -280ps)/(85C+40C) = 1.36ps/oC  (this assumes the propagation delay changes linearly over the full range).   Is this the right approach to make an estimate? 

  • 0 in reply to Nathan Baltz
    TI__Expert 8231 points

    Nathan,

    I was actually able to dig up the original characterization data that should give a more accurate approach.   

    At 3.3V the average propagation delay is:

    -40C - 285ps

    25C - 291ps

    85C - 298ps

    At 2.5V the average propagation delay is:

    -40C - 289ps

    25C - 295ps

    85C - 303ps

    This should be the best way to estimate the temperature coefficient.

    Regards,

    Will