----- Original Message -----
From: "Chris Albertson" <albertson.ch...@gmail.com>
To: "Discussion of precise time and frequency measurement"
<time-nuts@febo.com>
Sent: Sunday, June 02, 2013 3:16 PM
Subject: Re: [time-nuts] Cheap 9.8Mhz Sa.22c's
What are you planning to do with the 10MHz signal. In some cases you can
simply use 9.8304MHz. For example my plan to drive a DDS chip. Nominally
the DDS wants 125MHz but iif I put in some odd-ball thing like 119.6MHZ all
that means is I have to change the binary word I load into the DDS chip.
In fact that could work. Use the 9.8305 to drie a DDS then have the DDS
synthesize what you really want. It will be as stable as the Rb. but as
accurate as 1/2 the step size of the DDS.
-
And then you can make the fine frequency adjustments to the Rb 9.8 MHz in
software.
Regards,
Tom
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