[time-nuts] 50:50 duty from a PRS10
Charles P. Steinmetz
charles_steinmetz at lavabit.com
Thu Jul 21 18:34:32 UTC 2011
Chris wrote:
>How close to 50% duty cycle do you need. is 0.50 good enough or do
>you need 0.500000000 ? If all you need is 15% accuracy a 555 timer
>set up to make a 0.5 second pulse would work but if you need better,
>then maybe a phase lock loop with a much higher than 1Hz oscillator
>and then you divide that down to 2Hz and the 2Hz triggers a flip flop.
The PRS-10 already has a 10 MHz output locked to the 1 pps. Just
count the 10 MHz.
Best regards,
Charles
More information about the time-nuts
mailing list