[time-nuts] 10MHz to 25MHz

David davidwhess at gmail.com
Wed Jan 18 21:34:57 EST 2017

This document covers various methods but I agree with Rick about phase
locking a separate crystal oscillator; harmonic frequency
multiplication is more useful at higher frequencies where other
methods are unavailable:


An alternative very simple design I might try is a variation of the
active frequency multiplier where the 5th harmonic is filtered
directly from the output of the digital divide by two stage.

On Wed, 18 Jan 2017 18:28:32 +0000, you wrote:

>I am looking for a good X5 multiplier to use to generate a 25MHz signal from my 10MHz OCXO. I want to divide by 2 and multiply by 5 with a bandpass filter in the output and then a 3.3 volt 25MHz signal out.
>Maybe someone has better ways?
>Loren Moline  WA7SKT

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