[time-nuts] Metastability (was Brooks Shera)

Chris Albertson albertson.chris at gmail.com
Mon Mar 25 16:18:22 EDT 2013

On Mon, Mar 25, 2013 at 12:45 PM, David McGaw <n1hac at alum.dartmouth.org> wrote:
> S/LS logic was introduced in the mid 70's, F/AS/ALS around 1980, HC was
> early 80's.  By the third 7400 generation (F/AS/ALS) the problem was well
> known with parameters available and the logic fairly hard to it

I think this is all moot because as I just wrote in another email the
PPS signal never gets out of the 74hct4046 chip.   What gets out is
the output of  "Phase Detector #3".  You've have to know in some
detail how the 4046 chips' PD3 works.

Chris Albertson
Redondo Beach, California

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