[time-nuts] SITime oscillators

Magnus Danielson magnus at rubidium.dyndns.org
Tue Aug 6 17:37:10 UTC 2013


Demian,

On 08/06/2013 06:45 PM, Demian Martin wrote:
> SITime just got some press for their temperature "insensitive" mems
> oscillators. I went to the web site and saw some interesting parts with
> pretty ambitious claims. Specifically better than Quartz.
> http://www.sitime.com/index.php
> http://www.sitime.com/products/datasheets/sit8208/SiT8208-datasheet.pdf  
>
>  
>
> They look too good to be true. However the phase noise plot stops at 1 KHz.
> There is another that stops at 100 Hz elsewhere on the site. Does anyone
> have real experience with the technology? 
Close-in phase-noise is "interesting", or should I say "lively".

There are applications where these gives a run for the money, and a nice
complement in the arsenal, but for good close-in noise you need real
crystals.

Cheers,
Magnus



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