UmTRXv2 final project

Andrey Sviyazov andreysviyaz at gmail.com
Wed Jul 4 13:22:09 UTC 2012


Hi Jean-Samuel.

If Farnell better for you, then please order exactly
MLB-201209-0120PU<http://ru.farnell.com/mec-marcom/mlb-201209-0120pu/ferrite-bead-0805-case-120ohm-5a/dp/1308778RL>
and  MLB-160808-0600PL<http://ru.farnell.com/mec-marcom/mlb-160808-0600pl/ferrite-bead-0603-case-600ohm-1a/dp/1308770RL>
.
They are HI_CURRENT beads and it is really required.

Please find attached here new SCH and BOM files with new part numbers and
links.

Best regards,
Andrey Sviyazov.



2012/7/4 Jean-Samuel Najnudel - BJT PARTNERS SARL <jsn at bjtpartners.com>

> Hi Andrey,
>
> Thank you very much for your reply.
>
> Could you please confirm the components bellow are fine ?
> http://fr.farnell.com/murata/blm18tg601tn1d/ferrite-600ohm/dp/1115050RL
>
> http://fr.farnell.com/tdk/mmz2012121b/perle-de-ferrite-0805-120-ohm/dp/1669728RL
>
> Please let me know if this is fine.
> If not, which would you suggest ?
> http://ru.farnell.com/ferrite-beads
>
>
> Thanks a lot for your help.
>
> Best regards.
>
> Jean-Samuel.
> :-)
>
>
> On Wed, Jul 4, 2012 at 2:02 PM, Andrey Sviyazov <andreysviyaz at gmail.com>wrote:
>
>> Hi Jean-Samuel.
>>
>> For the TI160808U601 and TI201209U121 you can use any high current
>> ferrite chip bead with 600 Ohm and 120 Ohm impedance respectively.
>> For example you could order similar partnumbers from the ELFA<https://www.elfa.se/elfa3%7Eeu_en/elfa/init.do?init=1&shop=ELFA_EU-EN>catalogue in the
>> 0603<https://www.elfa.se/elfa3%7Eeu_en/elfa/init.do?item=65-500-37&toc=20387>and
>> 0805<https://www.elfa.se/elfa3%7Eeu_en/elfa/init.do?item=65-500-43&toc=0> SMD
>> cases respectively, datasheet here pdf<https://www1.elfa.se/data1/wwwroot/assets/datasheets/jqMLB-HighCurrent_e.pdf>
>> .
>>
>> Best regards,
>> Andrey Sviyazov.
>>
>>
>>
>> 2012/7/4 Jean-Samuel Najnudel - BJT PARTNERS SARL <jsn at bjtpartners.com>
>>
>>> Hi Andrey,
>>>
>>> Thank you very much for your reply.
>>>
>>> I try to find where to buy the TI160808U601 and TI201209-121 chokes. I
>>> do not know where I should find these. Would you know where I should order
>>> these components ?
>>>
>>> By the way, do you confirm the ISSI SRAM is pin compatible with the
>>> Cypress chip ?
>>>
>>> http://www.digikey.com/product-detail/en/IS61NLP51236-200TQLI/706-1103-ND/1557418
>>>
>>> Is this ISSI chip fine for our application ? Is 18 MBit enough ?
>>> Do you confirm this ISSI chip is the best value for what we need ? Are
>>> you sure we cannot find a lower cost chip with similar performances and/or
>>> a better performances chip with similar cost ?
>>> Are you sure we will not need to reroute the PCB ?
>>>
>>> We really need to be sure before starting the PCB production. If both
>>> you and Alexander confirm everything is fine, I will ask the fab to start
>>> the PCB.
>>>
>>> Please let me know.
>>>
>>> Again, thanks a lot for your help.
>>>
>>> Best regards.
>>>
>>> Jean-Samuel.
>>> :-)
>>>
>>>
>>>
>>> On Tue, Jul 3, 2012 at 11:40 PM, Andrey Sviyazov <andreysviyaz at gmail.com
>>> > wrote:
>>>
>>>> Jean-Samuel.
>>>>
>>>> Please inform me what actually rf chockes partnumbers are problem to
>>>> order.
>>>> Unfortunately MuRata produce few billion pcs and then stopped for a few
>>>> years.
>>>> So, possible we have to find some Chinese fab partnumbers to order.
>>>>
>>>> Best regards,
>>>> Andrey Sviyazov.
>>>> (Sent from my mobile client)
>>>> 04.07.2012 1:22 пользователь "Andrey Sviyazov" <andreysviyaz at gmail.com>
>>>> написал:
>>>>
>>>>  Hi Jean-Samuel.
>>>>> Unfortunately I have no internet connection now.
>>>>> Tomorrow I'll check flash and others.
>>>>>
>>>>> Best regards,
>>>>> Andrey Sviyazov.
>>>>> (Sent from my mobile client)
>>>>>
>>>>> 04.07.2012 1:10 пользователь "Alexander Chemeris" <
>>>>> alexander.chemeris at gmail.com> написал:
>>>>> >
>>>>> > On Mon, Jul 2, 2012 at 10:16 PM, Jean-Samuel Najnudel - BJT PARTNERS
>>>>> > SARL <jsn at bjtpartners.com> wrote:
>>>>> > > 1/ Would you know a distributor for the Murata chokes ? The fab
>>>>> them to have
>>>>> > > some issue to source these.
>>>>> >
>>>>> > Andrey is looking into this.
>>>>> >
>>>>> > > 2/ Would you suggest a distributor for the GPS chip ?
>>>>> >
>>>>> > Try contacting manufacturer directly:
>>>>> > http://www.transystem.com.tw/product.php?b=g&m=pe&cid=4&sid=&id=66
>>>>> >
>>>>> > They have a distributor in UK, but I think it might be easier to buy
>>>>> > from the manufacturer directly:
>>>>> > http://www.castlemicrowave.com/castle-contact.asp
>>>>> >
>>>>> > This chip is popular in Russia, so it is easy to source them here,
>>>>> > shipping them to EU might be a pain in big batches, but I think we
>>>>> > could send few chips for this prototyping batch if manufacturer's
>>>>> lead
>>>>> > time is too long. Here it costs $14.50/chip for more then 16 chips:
>>>>> > http://www.compel.ru/infosheet/TSI/EB-570/
>>>>> >
>>>>> > --
>>>>> > Regards,
>>>>> > Alexander Chemeris.
>>>>> > CEO, Fairwaves LLC / ООО УмРадио
>>>>> > http://fairwaves.ru
>>>>>
>>>>
>>>
>>
>
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