Hi all! Here last version PCB of UmTRXv2. In the next e-mail I'll include project files and cheapest BOM for debug variant. I think it is final, because of nobody desire to say me any suggestions (except Robin). Best regards, Andrey Sviyazov.

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(a)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(a)gmail.com> > написал: > > Here PcbDoc file @ 12/06/2012 . >> So, it all done :) >> >> Best regards, >> Andrey Sviyazov. >> >> >> >> 2012/6/12 Andrey Sviyazov <andreysviyaz(a)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(a)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. >>>> >>> >>> >>

some issue to source these.

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

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(a)gmail.com&gt; написал: > > On Mon, Jul 2, 2012 at 10:16 PM, Jean-Samuel Najnudel - BJT PARTNERS > SARL &lt;jsn(a)bjtpartners.com&gt; 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=&am… > > 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

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/1… 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(a)gmail.com&gt; 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" &lt;andreysviyaz(a)gmail.com&gt; > 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(a)gmail.com&gt; написал: >> > >> > On Mon, Jul 2, 2012 at 10:16 PM, Jean-Samuel Najnudel - BJT PARTNERS >> > SARL &lt;jsn(a)bjtpartners.com&gt; 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=&am… >> > >> > 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 >> >

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 &lt;jsn(a)bjtpartners.com&gt; > 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/1… > > 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(a)gmail.com&gt; 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(a)gmail.com&gt; 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(a)gmail.com&gt; написал: >>> > >>> > On Mon, Jul 2, 2012 at 10:16 PM, Jean-Samuel Najnudel - BJT >>> PARTNERS >>> > SARL &lt;jsn(a)bjtpartners.com&gt; 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=&am… >>> > >>> > 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 >>> >> >

Hi Jean-Samuel. If Farnell better for you, then please order exactly MLB-201209-0120PU<http://ru.farnell.com/mec-marcom/mlb-201209-0120pu/fer… and MLB-160808-0600PL<http://ru.farnell.com/mec-marcom/mlb-160808-0600pl/fer… . 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 &lt;jsn(a)bjtpartners.com&gt; > 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/1669… > > 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(a)gmail.com&gt; 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(a)bjtpartners.com&gt; >> >>> 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/1… >>> >>> 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(a)gmail.com&gt; 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(a)gmail.com&gt; 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(a)gmail.com&gt; написал: >>>>> > >>>>> > On Mon, Jul 2, 2012 at 10:16 PM, Jean-Samuel Najnudel - BJT >>>>> PARTNERS >>>>> > SARL &lt;jsn(a)bjtpartners.com&gt; 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=&am… >>>>> > >>>>> > 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 >>>>> >>>> >>> >> >

>>>>>>>>> > 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 >>>>>>> >>>>>>> >>>>>> >>>>> >>>> >>> >> >

Hi Jean-Samuel, We're sitting together with Andrey Sviyazov now and he says that it's fine to continue with this PCB. You will need 40pcs of this 0 Ohm jumpers (2pcs per board): http://fr.farnell.com/bourns/cr0603-j-000elf/resistor-0603-0r-5-0-1w/dp/200… Andrey will update the schematics and BoM later today. On Tue, Jul 24, 2012 at 2:13 PM, Jean-Samuel Najnudel - BJT PARTNERS SARL &lt;jsn(a)bjtpartners.com&gt; wrote: > Hi Andrey, > > PCB copper is ready yet. We will lose 560 Euros and 3 weeks delay if > we > change the copper. It is not impossible, we can decide to do that but > I > would suggest we change the PCB for the next batch. After testing the > v2 > board, you may found more changes we need on the copper. > > The board itself is not ready. We can change some passives. This will > not > cost anything (or almost) and extra delay will be just one or two days > at > most. > > Please let me know what you want to do about the PCB. > > Please let me know the exact passives modifications. I will purchase > the > components asap and send the modifications list to the fab. > > Best regards. > > Jean-Samuel. > :-) > > Le 23 juil. 2012 22:47, "Andrey Sviyazov" &lt;andreysviyaz(a)gmail.com&gt; a > écrit : > >> Hi Jean-Samuel. >> >> Please let me know fabrication progress, a specially PCB. >> I ask you because of few changes required to improve LMS phase >> noises. >> BOM required changes in passive components only. >> If PCB doesn't yet ordered, then possible I'll make changes too. >> >> Best regards, >> Andrey Sviyazov. >> (Sent from my mobile client) >> >> 04.07.2012 20:01 пользователь "Jean-Samuel Najnudel - BJT PARTNERS >> SARL" >> &lt;jsn(a)bjtpartners.com&gt; написал: >>> >>> Hi Andrey, >>> >>> Thank you very much for your help. >>> >>> I will forward this to the fab. >>> Yes, you are all right, the FBMH2012HM121-T price is much better >>> than the >>> MLB-201209-0120PU. However, availability on Farnell France is not as >>> good as >>> the MLB-201209-0120PU. Price difference is quite big but we only use >>> 5 beads >>> per boards. Difference makes only about 1 euro per board. I will let >>> the fab >>> decide between these 2 references. >>> >>> Best regards. >>> >>> Jean-Samuel. >>> :-) >>> >>> >>> On Wed, Jul 4, 2012 at 4:30 PM, Andrey Sviyazov >>> &lt;andreysviyaz(a)gmail.com&gt; >>> wrote: >>>> >>>> Hi Jean-Samuel. >>>> >>>> Yes, you are all right and you can order TDK - MPZ1608S601A instead >>>> of >>>> MLB-160808-0600PL. >>>> And also possible to use 3 times cheaper FBMH2012HM121-T, 0805, >>>> 2.5A >>>> instead of MLB-201209-0120PU. >>>> >>>> Best regards, >>>> Andrey Sviyazov. >>>> >>>> >>>> >>>> 2012/7/4 Jean-Samuel Najnudel - BJT PARTNERS SARL >>>> &lt;jsn(a)bjtpartners.com&gt; >>>>> >>>>> Hi Andrey, >>>>> >>>>> Thank you very much for your reply. >>>>> Now, I better understand. >>>>> >>>>> You are all right. I do not have anything as high current as >>>>> MLB-201209-0120PU at a lower price. >>>>> >>>>> However, I have a 0603 600 ohm 1A bead, as MLB-160808-0600PL, at a >>>>> much >>>>> lower price. >>>>> >>>>> >>>>> http://ru.farnell.com/tdk/mpz1608s601a/ferrite-bead-0603-600-ohm/dp/1669747… >>>>> What do you think about this component (TDK MPZ1608S601A)? >>>>> >>>>> Best regards. >>>>> >>>>> Jean-Samuel. >>>>> :-) >>>>> >>>>> >>>>> >>>>> On Wed, Jul 4, 2012 at 3:22 PM, Andrey Sviyazov >>>>> &lt;andreysviyaz(a)gmail.com&gt; wrote: >>>>>> >>>>>> Hi Jean-Samuel. >>>>>> >>>>>> If Farnell better for you, then please order exactly >>>>>> MLB-201209-0120PU >>>>>> and MLB-160808-0600PL. >>>>>> 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 >>>>>> &lt;jsn(a)bjtpartners.com&gt; >>>>>>> >>>>>>> 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/1669… >>>>>>> >>>>>>> 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 >>>>>>> &lt;andreysviyaz(a)gmail.com&gt; 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 >>>>>>>> catalogue in the 0603 and 0805 SMD cases respectively, >>>>>>>> datasheet here pdf. >>>>>>>> >>>>>>>> Best regards, >>>>>>>> Andrey Sviyazov. >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> 2012/7/4 Jean-Samuel Najnudel - BJT PARTNERS SARL >>>>>>>> &lt;jsn(a)bjtpartners.com&gt; >>>>>>>>> >>>>>>>>> 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/1… >>>>>>>>> >>>>>>>>> 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 >>>>>>>>> &lt;andreysviyaz(a)gmail.com&gt; 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" >>>>>>>>>> &lt;andreysviyaz(a)gmail.com&gt; 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" >>>>>>>>>>> &lt;alexander.chemeris(a)gmail.com&gt; написал: >>>>>>>>>>> > >>>>>>>>>>> > On Mon, Jul 2, 2012 at 10:16 PM, Jean-Samuel Najnudel - >>>>>>>>>>> > BJT >>>>>>>>>>> > PARTNERS >>>>>>>>>>> > SARL &lt;jsn(a)bjtpartners.com&gt; 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=&am… >>>>>>>>>>> > >>>>>>>>>>> > 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 >>>>>>>>> >>>>>>>>> >>>>>>>> >>>>>>> >>>>>> >>>>> >>>> >>> > -- Regards, Alexander Chemeris. CEO, Fairwaves LLC / ООО УмРадио http://fairwaves.ru

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(a)gmail.com&gt; написал: > > On Mon, Jul 2, 2012 at 10:16 PM, Jean-Samuel Najnudel - BJT PARTNERS > SARL &lt;jsn(a)bjtpartners.com&gt; 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=&am… > > 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