[time-nuts] 1PPS to 32.768 khz

Brooke Clarke brooke at pacific.net
Wed Oct 19 15:18:34 EDT 2016


Hi Lee:

32768 can easily be divided down to drive the clock.  So why not bypass the 32768 and drive the clock directly from the 
1 PPS you now have.
http://www.prc68.com/I/QuartzClk.shtml

-- 
Have Fun,

Brooke Clarke
http://www.PRC68.com
http://www.end2partygovernment.com/2012Issues.html
The lesser of evils is still evil.

-------- Original Message --------
> First let me say this is first time I have posted to the group so go easy on me. :)
> Secondly I want everyone to know that you guys make me feel so NORMAL for
> wanting to use and understand accurate timing devices.
>
> I thought there was something seriously wrong with me now I know there are others
> affected with the same disease. hehe
>
> Now my questions.
>
> 1. Does anyone know of a device that will take a 1PPS GPS timing signal and generate a 32.768 kHz sine wave output ?
> I have big digital clock that uses an 8 bit micro processor and an external 32.768 crystal. Obviously the external crystal is
> awful for accuracy.
>
> I have searched every where using as many search terms as I can think of and can’t believe there is not a device that performs
> this function.
>
> I have found a couple of Epson RTC chips that might come close that 1pps but I don’t think that corrects the 32khz just the clock time.
>
> 2. 10 Mhz Freq Standard
> I am not in the same league as the majority of the list members and just starting to dabble in GPSDO stuff.
> I have tried to find a thunderbolt as a starting device but it appears those are either dried up or people want too much money.
>
> I wanted to get the opinion of anyone who has tried the Leo Bodnar GPSDO ?
> For the money it appears to offer a beginner a lot of features.
>
> Thanks and reading the daily digest of what you guys are working on.
> I have a feeling if I am not careful you guys could cost me a lot of money. hehe
>
>
> Lee
>
>
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