[time-nuts] Interesting 1-60 MHz =/- 50 ppb Stratum-3 TCXO chip

[Richard Solomon]

Where do you buy these ? Their web site was not too illuminating.

Tnx, Dick, W1KSZ

On Fri, May 1, 2020, 4:31 PM mpb45 at clanbaker.org <mpb45 at clanbaker.org>
wrote:

> Hello, time Nutters--
>
> I have been phase locking the freq counters in my HP 6-GHz VNA, Tektronix
> spectrum analyzer and bench freq counter to the 10 MHz signal from
> a Trimble Thunderbolt via a 4-port distribution box and long coax cables
> to each of the instruments.  This works well but is a pain in the tush
> connecting to long coax cables when the bench test gear are moved around.
>
> A friend suggested looking into some MEMS TCXO's made by SiTime to
> do this with.   SiTime offers a wide variety of Stratum-3 TCXO chips.  One
> of them is the SiT5358 which is spec'd at 0.05 ppm from 1 to 60 MHz.
>
> https://www.sitime.com/products/super-tcxos/sit5358
>
> I am wondering what any feedback thoughts might be on this from
> the Time-Nuts gang?  An eval-PCB board for the SiT5358 chip is
> available.  What say the Time-Nutters gang about this approach for
> incorporating a small SiT5358 eval-PCB board into my bench test
> gear for phase locking to?  I am also wondering which of the
> SuperStratum3 TCXO chips might be the best choice for a project
> like this?
>
> Any feedback on this is most welcome!
>
> Mike Baker
> Gainesville/Micanopy, Florida
> *****************
>
>
>
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