It would seem the most jitter free way to do it would be to simply
multiply it up like we used to do. Some reasonably Hi-Q LC circuits
could make a nice flywheel and filter out other signals at the same
time. Once you have it to the desired signal frequency you could
condition it to clock your DDS.
Am I missing something here? Wouldn't be the first time, ya know!
Burt, K6OQK
Subject: Re: [time-nuts] what is the best way to multiply a 10 Mhz
signal?
On 21/12/10 16:35, Stephen Farthing wrote:
> Hi everyone,
>
> I want to multiply the output from my Efratom 101 (10Mhz) to clock a DDS at
> 70 Mhz. Has anyone tried this?
>
> Regards,
>
> Steve G0XAR
From: Eamon Skelton <[email protected]>
What is the application? What will the DDS output frequency be?
Maybe you could use a 70MHz (or whatever frequency you need)
VCO as the DDS clock and use the DDS as a programmable divider
to produce a 10MHz output. This could be phase locked to the
10MHz output from the LPRO-101.
Burt I. Weiner Associates
Broadcast Technical Services
Glendale, California U.S.A.
[email protected]
www.biwa.cc
K6OQK
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