[time-nuts] Interfacing a 8dBm sine output of an OCXO to adigital logic standard
Poul-Henning Kamp
phk at phk.freebsd.dk
Fri Sep 16 15:19:33 UTC 2005
In message <MGEKKFGEAIKJOOPJPGIKCEAMFMAA.richard at karlquist.com>, "Richard \(Ric
k\) Karlquist \(N6RK\)" writes:
>> http://www.icst.com/datasheets/ics2305.pdf
>>
>> ICS has many interesting clock chips which can be used for other
>> uses than what they were designed. Worth a browse.
>> --
>> Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
>
>This chip has 200 ps of jitter! There is no way you would
>want to use this with an OCXO.
Be aware they don't mean the same with "jitter" as you do: they
include production tolerances, so the 200ps is the worst case jitter
measured between two output pins on a large lot of chips, not the
jitter you would measure on a single output on a single chip.
--
Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG | TCP/IP since RFC 956
FreeBSD committer | BSD since 4.3-tahoe
Never attribute to malice what can adequately be explained by incompetence.
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