[time-nuts] Phase Noise of 74AC gates

Rick Karlquist richard at karlquist.com
Sat Feb 20 04:52:31 UTC 2010


Arthur Dent wrote:
> I picked up a used 10 Mhz distribution amplifier made by an English
> company. The input uses a LT1016 10ns comparator as the input stage
> that drives several CD74AC00E quad nand gates. The output from each
> AC00 I.C. is fed through filters to recreate a pretty good sinewave.

This is a terrible design.  The comparator will add considerable
jitter.  What were they thinking?

Rick Karlquist N6RK




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