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@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@gmail.com wrote:
Hi.
Here LMS TxLO noise plot for OHM4048V-26MHz OCXO.
Best regards, Andrey Sviyazov.
2012/7/31 Andrey Sviyazov andreysviyaz@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@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
