[USRP-users] on-board VCTCXO information

Neel Pandeya neel.pandeya at ettus.com
Mon Jul 20 13:16:05 EDT 2015


The GPSDO for the B210 is:
http://www.jackson-labs.com/index.php/products/lc_xo

The GPSDO for the N210 is:
http://www.jackson-labs.com/index.php/products/firefly_1a

We do not have the schematics for those devices, but the specifications are
available at the Jackson Labs website.




On 20 July 2015 at 10:12, Ian Buckley via USRP-users <
usrp-users at lists.ettus.com> wrote:

> Urban,
> All the GSPDO's are custom versions of Jackson Labs products….you can seek
> specs and data at their website.
>
> B210's TCXO is a TXC 7Q-40.000MBS-T
>
> -Ian
>
> On Jul 20, 2015, at 6:44 AM, Urban Hakansson via USRP-users <
> usrp-users at lists.ettus.com> wrote:
>
> Hi
>
> I wonder if you would mind providing  the name and model number of the
> local on-board VCTXCOs that are used on the B210 and the N210.
>
> I would like to compare the Data Specs in greater detail.
>
> The B210 and N210 data sheets only specify frequency accuracy as +/- 2 ppm
> and 2.5 ppm respectively.
>
> I would like to be able to find out
>
> Frequency Calibration Accuracy? (Is the oscillator calibrated in factory??)
> Frequency Stability vs Temperature?  (what temperature range???)
> Frequency Stability vs Load?
> Frequency Stability vs Voltage?
> Frequency Stability vs Aging (daily, 1 year, lifetime)?
>
> Are all of these factors lumped together in the +/- 2 ppm and 2.5 ppm
> respectively figures respectively, or is it just Frequency Stability vs
> Temperature?
>
> Also, I would like to know
> Warm up time?
> Center Frequency?
>
> What brand, model number of oscillator are used on the Octoclock-G and
> board-mounted GPSD0 for the N210 and the B210.
>
> Is it possible fro you to make the  chematics for the board-mounted GPSD0
> for the N210 and the B210 available? I looked at
> http://files.ettus.com/schematics/ and could not find them.
>
> If you could just provide the name and model number I can look it up
> myself.
>
> Thank you for your consideration.
>
> Regards,
> Urban Hakansson
> Senior Software Engineer
> Tecore Networks
> Phone: +1 410 872 6315
> Fax: +1 410 872 6010
> Email: uhakansson at tecore.com
>
>
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