[time-nuts] 1Mhz to 1 PPS
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:
---- jshank <j-shank at comcast.net> wrote:
> I would like to convert a 1 MHz sine wave to a 1 pps TTL.
> Any suggestions?
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