[time-nuts] 1Mhz to 1 PPS

Didier Juges didier at cox.net
Tue Nov 27 09:02:19 EST 2007

You will need a clock shaper to convert the sine to a digital signal, and a series of dividers. 

You can look at my page on clock shapers for ideas:


If you look through the archives, I believe earlier this year there was a thread about the respective noise performance of various logic technologies, but I am sure someone can recommend the current best-in-class divider for low noise. For any but the most demanding applications, I am sure that standard CMOS decade counters in the AC, HC, ACT or HCT series would work fine, such as the 74ACT162.

Look at this page for comparison of CMOS technologies:


Didier KO4BB

---- jshank <j-shank at comcast.net> wrote: 
> Hi,
> I would like to convert a 1 MHz sine wave to a 1 pps TTL.  
> Any suggestions?
> Thanks,
> Jeff
> _______________________________________________
> time-nuts mailing list -- time-nuts at febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the instructions there.

More information about the time-nuts mailing list