[time-nuts] trimble Thunderbolt, how to get 25 or 27 mHz from it??
bruce.griffiths at xtra.co.nz
Mon Jan 8 14:23:53 EST 2018
Yes, but the PN noise (outside the PLL bandwidth) will be much higher than with a classical multiplier.
> On 09 January 2018 at 02:14 Chris Wilson <chris at chriswilson.tv> wrote:
> Hello Bruce, Sorry, this went to you direct as well, in error.
> Thanks for the very fast reply! Would it be possible to use one of
> these frequency multiplier IC's? Sounds simpler, but maybe there are
> down sides?
> on 08/01/2018 13:11 you wrote:
> > >
> > Divide the 10MHz by 2 and use a filter to extract the fifth
> > harmonic from the 5MHz square wave output.
> > Amplify the 25MHz output from the filter if required...
> > Bruce
> > On 09 January 2018 at 00:31 Chris Wilson <chris at chriswilson.tv> wrote:
> > 08/01/2018 11:28
> > Is there an easy way to get 25 or 27 MHz from my Trimble Thunderbolt
> > as a reference clock at 1v P to P square wave for a Si5351a
> > synthesizer chip please? I have the David Partridge divider board from
> > way back that is still going strong, but 25 MHz is not an option as it
> > divides only. Thanks, please keep replies to the level an idiot might
> > comprehend :)
> > --
> > Best Regards,
> > Chris Wilson.
> > mailto: chris at chriswilson.tv
> > >
> Best Regards,
> Chris Wilson.
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