[time-nuts] Si5351A

[Thomas S. Knutsen]

John Miles did the phase noise measurments, they are avaible here:
http://nt7s.com/2014/11/si5351a-investigations-part-7/


BR
Thomas.


2014-11-11 21:49 GMT+01:00 Joseph Gray <jgray at zianet.com>:

> Some of you have probably already heard of this new clock generator chip
> from Si. News of a board with this chip from Adafruit just came up on a
> local Amateur list today. A quick Google shows that some folks have used
> this chip in homebrew SSB rigs.
>
> My concern would be that when this chip generated frequencies that required
> non-integer PLL ratios, that the jitter would be unacceptable for SSB use,
> and even worse for CW.
>
> As for the Adafruit board, they are using a crystal spec'ed for 30ppm
> accuracy and stability. Not something I'd want to use in a radio. Perhaps
> the "C" version of the chip, fed by a TCXO.
>
> What do you think about the jitter issue?
>
> Joe Gray
> W5JG
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