[time-nuts] New PPB rated TCXO

[Scott Stobbe]

This is also showed up on a recent EDN "feature"
http://www.edn.com/design/analog/4442801/1/MEMS-oscillator-reduces-dropped-calls-in-base-stations


A Rakon designer chimed in on the comments.

On Mon, Oct 10, 2016 at 11:03 AM, Robert LaJeunesse <lajeunesse at mail.com>
wrote:

> For general group information, as SiTime datasheet is not open to the
> public (yet?).
>
> https://www.sitime.com/products/precision-super-tcxo
>
> Actually a MEMS oscillator, comparison video against quartz TCXO is
> interesting.
>
> Claimed Key Features:
> - 30x better dynamic performance for macro cells, small cells, syncE and
> optical networks
> - 3e-11 Allan Deviation (ADEV)
> - 0.2 ps/mv PSNR, eliminating dedicated LDO
> - No activity dips or microjumps
> - 10x better dynamic stability, replacing OCXOs in IEEE 1588 applications
> - 1 to 5 ppb/°C frequency over temperature slope
> - -40°C to +105°C operation uniquely enables fan-less outdoor equipment
> - 20x greater vibration resistance ensures continuous system operation
>
> Frequency range 1MHz to 220MHz (via 2 product types) so some form of
> synthesizer/divider is inherent.
>
> Bob L.
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