Actually, I don't have enough time to research of it more, because of
preselector design in progress.
Best regards,
Andrey Sviyazov.
2012/8/3 Andrey Sviyazov <andreysviyaz(a)gmail.com>
1/ Yes, my fears were confirmed - OHM4 footprint
isn't correct (my
mistake), but it possible to mount from bottom side.
2/ Noise plots are similar, I think we see limit of LMS performance but
not XO (see pictures here).
Also, I found that for 1850MHz better to use Icp=1.2mA.
Therefore I decide to measure at 1.2mA for both frequencies just to
compare.
If Icp dependance of frequency confirmed, then we need lookup table for
this also.
Best regards,
Andrey Sviyazov.
2012/8/3 Alexander Chemeris <alexander.chemeris(a)gmail.com>
So, looks like it has a bit worse far-end noise,
but otherwise is
about the same as TCXO we use now, correct?
Btw, was it UmTRX layout incorrect or the OCXO pinout?
On Fri, Aug 3, 2012 at 3:42 PM, Andrey Sviyazov <andreysviyaz(a)gmail.com>
wrote:
Hi.
Here LMS TxLO noise plot for OHM4048V-26MHz OCXO.
Best regards,
Andrey Sviyazov.
2012/7/31 Andrey Sviyazov <andreysviyaz(a)gmail.com>
That's good news!
Yes, of course, I have to test it and then share some results.
Best regards,
Andrey Sviyazov.
2012/7/31 Alexander Chemeris <alexander.chemeris(a)gmail.com>
>
> Hi,
>
> I've received 10pcs of OHM4048052GG010020-26.0M today. Andrey Sviyazov
> - could you measure their performance and test UmTRX with them?
>
> --
> Regards,
> Alexander Chemeris.
> CEO, Fairwaves LLC / ООО УмРадио
>
http://fairwaves.ru
>
--
Regards,
Alexander Chemeris.
CEO, Fairwaves LLC / ООО УмРадио
http://fairwaves.ru