[time-nuts] New PPB rated TCXO
henry at pericynthion.org
Mon Oct 10 23:32:57 EDT 2016
I can attest that that oscillator was a lifesaver recently in a
project I was tangentially involved with. They had tried several
TCXOs and were plagued with thermal and vibration sensitivity. They
dropped in the SiTime and it worked like a charm.
On Mon, Oct 10, 2016 at 7:02 PM, Nick Sayer via time-nuts
<time-nuts at febo.com> wrote:
> The video linked on that page is particularly interesting (if you take it on face value that they're not faking it. ;) ).
> Sent from my iPhone
>> On Oct 10, 2016, at 8:03 AM, Robert LaJeunesse <lajeunesse at mail.com> wrote:
>> For general group information, as SiTime datasheet is not open to the public (yet?).
>> 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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