[time-nuts] DDS in GPSDO design?

[Poul-Henning Kamp]

In message <D0519DF5-E693-45CE-8A6F-C8CF35DDE61C at rtty.us>, Bob Camp writes:

>The 9852 can be dithered from an external source. Of course, to
>be effective, you need a source that can calculate and transmit a
>multi megabit / second bit stream to do it. That gets you right
>back to the FPGA.

There are dedicated PRNG chips which would do a pretty good job,
as would pretty much any streaming crypto chip in feedback mode.

It's probably not cheaper than the FPGA, but you would avoid
the VHDL issue.

I like Rich's mixing synthesizer much better.

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