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Recent content by lsy2004

  1. L

    Scripting-Allegro-adding lines,shapes etc

    Thanks for the information above. I am looking for Skill also.
  2. L

    how can i take helps from ansoft

    you can call AEs...... Some of them re very good...
  3. L

    need help in Protel DXP for Signal integrity

    Hi, I am using Protel DXP for Signal Integrity. I need to input TI chip's IBIS model to do the simulation. However, when i import the IBIS file, there is EXP error: Access validation at address at 15101A87 IN model "IBISconverter.dll", read of the address is 00000008 Does any body know how...
  4. L

    what is fanout in pcb layout?

    pcb fanout hi, what is fanout in pcb layout? i am using protel dxp. what exactaly fanout is in dxp? Thanks
  5. L

    What questions can be asked in an interview for PCI/PCI-X?

    help needed in PCI Hi, I am in hardware field. What kinds of questiones would be asked in interview for PCI/PCI-X? i NEED HELP. tHANKS.
  6. L

    How to do high speed board timing analysis?

    Hi, How to do high speed board timing analysis? For example, for SRAM and PCI bus on the board, how to do the timing analysis? Thanks.
  7. L

    help needed to solve impedence dismatching

    How to solve the problem of impedence dismatching when the board is prototyped and you can not redesign the PCB layout. Is there any way to fix this problem? Thanks
  8. L

    help neede: sine and triangle wave form with FFT

    Thanks! Where can i get the links or papers about this?
  9. L

    how to do board time analysis?help needed

    Hi, How to do high speed board timing analysis? For example, for SRAM and PCI bus on the board, how to do the timing analysis? Thanks.
  10. L

    help neede: sine and triangle wave form with FFT

    fft and triangle wave I have a question about FFT. There are two wave input forms, one is sine waveform, one is triangle wave form .They have the same frequency and the same magnitude. After input through FFT, is there difference at the output of FFT between Sine and triangle wave ? If so...
  11. L

    urgent help needed in RF system hardware interview

    HI, I will have an interview recently. The position is RF SYSTEM HARDWARE ENGINEER( board level) The company is RIM, canada, which manufactures Blackberry. I am a newer in RF filed. Can any prfoessional give me helps about how to prepare technical stuff in RF part? They are interested in WLAN...
  12. L

    urgently need help in RF system Hardware design

    Thanks. I have to take an onsite test for a job. They require some Power amplifier, LDO , LNA... RF technical background. Could anybody give me some guides which can make me picup quickly?
  13. L

    urgently need help in RF system Hardware design

    Hi, I am a newer in RF. I need help to quickly pick up RF system hardware stuff in 3 weeks. As a RF system Hardware engineer, what stuff should i know? any books? Thanks.
  14. L

    how to convert Protel DXP to PADS?

    dxp to pads Hi, Does anybody know how to convert ProtelDXP file to PADS file? Thanks
  15. L

    questiones about DXP protel Signal integrity

    I used Protel DXP 2002 to do Signal integrity . However, there were some problems with either schematics or PCb editors . The meesage shows: PCB COMPONENTS were not linked to the source schematic components. Run component links to see messages for details. hOWEVER, I COULD NOT FIND " COMPONENT...
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