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Recent content by info_req

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    How to program Atmega128?

    Dear, I am trying to program Atmega128L Micro-controller but I could not be successful. I tried it using JTAG programmer JTAGICE mk2, it programmed but later on no response from microcntroller. Programmer reads 5.1 voltage from the target board that i designed myself, but it doesn't read...
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    BGA package soldering on FR4 material

    Your problem iss antenna design? but not as close to PCB design. Please give detail that where are you: at Antenna design stage or PCB design stage.
  3. I

    How to measure Ground Bounce

    My question is that how to measure Ground Bounce. Where is reference. Should I assume refernce just after Power supply ground? or Board reference?
  4. I

    what is meant by ground bounce?

    leo_02's decription explains ground bounce very well.
  5. I

    BGA package soldering on FR4 material

    thanks for all of you. It really helped.
  6. I

    help in bga?? for making pcb

    BGA component routing is rather difficult than other SMD components. If your package is small enough then it may possible. Pin Pitch and number of picns of BGA package are important to note.
  7. I

    Socket for embedded DSP processors

    Yes, sockest for BGA package are available. I have seen last time a link on PCBTalk.com - Daily PCB News and Information. please explore this site. you may get helpful. For DSP PCB design study High speed PCB design tutorials. For this type of PCB get some knowledge about Signal Integrity...
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    choosing of layer stackup???

    First of all decide that how many layers you need, then focus to layer stack. you may use this scheme signal-groung-power-signal-ground..... i.e. after each signal or power plane use one ground layer.
  9. I

    BGA package soldering on FR4 material

    Is there any problem with soldering BGA package on FR-4 maetial. does Tg of laminate may disturb the laminate proprties.? Actually we are designing PCB for BGA-676 pin package. The question is does FR-4 material serve the purpose or we should change material to FR-5 or polymide or some...
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    how to receive call from cell phone using VB 6.0?

  11. I

    Need a PCB designed and made

    We are a PCB design house. We have expertise to desgin multilayer PCBs focusing Signal Integrity, manufacturer, assembly constraints. Contact us at macroPCBs@gmail.com
  12. I

    What's the best PCB company in China?

    we are a PCB design services provider. for future PCB designs you can contact us at macroPCBs@gmail.com or **broken link removed**
  13. I

    signal and power integrity for pcb designers

    just type on google and you will much help regarding this topc.
  14. I

    PCB layout or Artwork Cost Estimation in Rupees(Indian currancy)

    Satish NAsik it is quiet helpful.
  15. I

    signal integrity & emi emc

    Signal Integrity deals that how much healthy a signal is being received at the destination. EMI lectomgnetic interferance. Interference of transmisiion sgnals with your system. or study of system with respect to antenna both transmission and reception properties. EMC is elecromagnetic...
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