UmTRXv2 final project

Jean-Samuel Najnudel - BJT PARTNERS SARL jsn at bjtpartners.com
Mon Jul 2 18:16:33 UTC 2012


Hi Andrey,

I have some news from the fab today and I have a meeting with them tomorrow
morning.

They sent me the BOM with components price list. This bring me a few
questions.

1/ Would you know a distributor for the Murata chokes ? The fab them to
have some issue to source these.

2/ Would you suggest a distributor for the GPS chip ?

3/ The CY7C1460AV33-167AXI costs more than 50 Euros on the list ! I know
SRAM is expensive but would you know where we could purchase this component
at a lower price ? If not, do you think we could use a cheaper but
equivalent SRAM chip ?

4/ The M25P64-VMF6 costs more than 20 Euros on the list ! This is huge for
a 64M flash. Would you know where we could purchase this component at a
lower price ? If not, do you think we could use a cheaper but equivalent
flash chip ?

Please let me know about this. This would help me a lot to move forward to
the next sample production step.

Thanks a lot for your help.

Best regards.

Jean-Samuel.
:-)


On Mon, Jun 18, 2012 at 11:19 AM, Jean-Samuel Najnudel - BJT PARTNERS SARL <
jsn at bjtpartners.com> wrote:

> Hi Andrey,
>
> I sent the files last week. The fab needs a few days to update its pricing
> and launch the production process.
> Anyway, I just called them today. Work is in progress. They will provide
> me with some updates later this week. They confirm this should not take too
> much time for production and they will anyway contact me if they need
> anything.
> I will let you know asap.
>
> Best regards.
>
> Jean-Samuel.
> :-)
>
>
>
> On Mon, Jun 18, 2012 at 9:49 AM, Andrey Sviyazov <andreysviyaz at gmail.com>wrote:
>
>> Hi Jean-Samuel.
>>
>> Took another week, but still no news from you.
>> Could you please inform us about the progress in the production of
>> prototypes.
>>
>> Best regards,
>> Andrey Sviyazov.
>>
>>
>>
>> 2012/6/13 Andrey Sviyazov <andreysviyaz at gmail.com>
>>
>>> Hi Jean-Samuel.
>>>
>>> Please inform us about fabrication progress even there are no issues.
>>>
>>> Best regards,
>>> Andrey Sviyazov.
>>> (Sent from my mobile client)
>>> 12.06.2012 4:48 пользователь "Andrey Sviyazov" <andreysviyaz at gmail.com>
>>> написал:
>>>
>>>  Here PcbDoc file @ 12/06/2012 .
>>>> So, it all done :)
>>>>
>>>> Best regards,
>>>> Andrey Sviyazov.
>>>>
>>>>
>>>>
>>>> 2012/6/12 Andrey Sviyazov <andreysviyaz at gmail.com>
>>>>
>>>>> Hi all!
>>>>>
>>>>> Here final project UmTRXv2 @ 12/06/2012 (PcbDoc file will be attached
>>>>> to the next e-mail).
>>>>> I found an mistake with non-SMD LED's positions in compare to Ettus
>>>>> where A-B in left-to-right orientation (see picture).
>>>>> Andrew Karpenkov suggested me to change it because of it is not yet
>>>>> standard but people accustomed to this.
>>>>> It is done.
>>>>>
>>>>> Also he suggest me to make four test points for RXOUT legs of LMS
>>>>> because he work with this now and found it helpfull.
>>>>> It is done.
>>>>>
>>>>> Also test points which without connector now referenced as TST and
>>>>> therefore RefDes of some connectors changed.
>>>>>
>>>>> Jean-Samuel, please find Gerber files, NC drill and layer stack
>>>>> desription files which usually required to produce PCB.
>>>>>
>>>>> Best regards,
>>>>> Andrey Sviyazov.
>>>>>
>>>>>
>>>>>
>>>>> 2012/6/10 Andrey Sviyazov <andreysviyaz at gmail.com>
>>>>>
>>>>>> Hi all!
>>>>>>
>>>>>> Here final project UmTRXv2 @ 10/06/2012 (PcbDoc file will be attached
>>>>>> to the next e-mail).
>>>>>> Jean-Samuel, please check SMD LED's placed at the front edge of the
>>>>>> PCB.
>>>>>> If you agree with this variant then I'll generate Gerber files vs
>>>>>> required layers and description to produce PCB.
>>>>>> If anybody find any mistake, please inform me immediatelly.
>>>>>>
>>>>>> Best regards,
>>>>>> Andrey Sviyazov.
>>>>>>
>>>>>
>>>>>
>>>>
>>
>
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