[time-nuts] Si5340 synthesizer chip performance
Jerry Hancock
jerry at hanler.com
Mon Jan 29 01:12:46 UTC 2018
John, what device did you use for the test?
Regards,
Jerry
Jerry Hancock
jerry at hanler.com
(415) 215-3779
> On Jan 28, 2018, at 4:23 PM, John Ackermann N8UR <jra at febo.com> wrote:
>
> I received the Si5340A evaluation board from Digikey on Friday and fired it up yesterday. I used the SiLabs "ClockBuilder" software to configure four outputs -- 10 MHz, 15 MHz, 29.999 999 9 MHz, and 144.2 MHz -- all using the 45 MHz crystal that comes with the EVM. Attached is a phase noise plot of the 10 MHz and 29.999 999 9 MHz signals. I would say this isn't too bad! This performance is certainly sufficient for any of the RF work I have in mind.
>
> The ADEV was another matter -- about 1e-9 at 1 second, working its way uphill from there. But what do you expect from a bare crystal?
>
> John
>
> <siLabs5340-test.png>_______________________________________________
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