On the subject of dividers, the 74HC4059 is a synchronous CMOS part with a really easy to use divide by 10K function & favorable jitter performance. It's cheap & available from distributors. With a 10MHZ sinewave input, jitter measures less than 4ps rms & 27ps p-p on 2 samples I checked.
Pete Rawson On Feb 3, 2010, at 12:42 PM, paul swed wrote: > They are indeed cheap and it would be handy to have low noise divider > chains. > 6 decades worth. 74ls90s get really boring to wire. > Unfortunately I am unfamiliar with using the device. But I do seem them > used. > > On Wed, Feb 3, 2010 at 1:59 PM, Matt Ettus <boysc...@gmail.com> wrote: > >> Does anyone have any experience using CPLDs for very low phase noise >> dividers? You can get an XC9536XL from Xilinx for around $1, and I >> thought it would make a good divide by 2 through 10 device. >> >> Matt >> >> _______________________________________________ >> 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. >> > _______________________________________________ > 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. _______________________________________________ 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.