[time-nuts] How to get 32.768KHz from 10MHz.

Mike S mikes at flatsurface.com
Wed Jul 23 18:01:37 EDT 2008


At 05:42 PM 7/23/2008, Bruce Griffiths wrote...
>Another approach is to divide the 10MHz by 5^7 (78125) and then use an 
>
>injection locked multiplier chain to generate 32768 Hz from the
>resultant 128Hz output.
>It may even be possible to do the 256x multiplication using a single
>injection locked 32768Hz injection locked multiplier.

You're missing the point. The application is to drive a common, readily 
available consumer clock. Simple and cheap. It can be done with a 
single $1 PIC. You could spend $20 or $100 and not get better results 
for the application. If you can describe a way of doing it for $0.50, 
please do. 





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