Content-Type: text/plain; charset=ISO-8859-1 -------- In message <5134dd69.1070...@rubidium.dyndns.org>, Magnus Danielson writes:
>> Once you get to this level of detail, it is important to know that the >> actual number is not 20ps but 19.5763ps >> >> See page 8-19 in the manual. > >Since we are in nit-picking mode, on page 8-29 it says the resolution is >in 5/256 ns, which I get into 19,53125 ps (exact). I doubt that difference is material :-) I'm not sure which one is correct, at the end of the day, but it is somewhere between 19.6078 and 19.4553 ps. The point I tried to make was that once you start to look really closely at good clocks, you will find that the resolution shines through, and it will be 19.55-ish ps, not 20ps. >One way to understand this is that the gearbox of the 5370B >interpolators creates a virtual clock of 51,2 GHz. Not bad for a core >design in 200 MHz and some smart ECL logic from late 1970thies. Indeed. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 p...@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. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
