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Recent content by 1a2s3d4f

  1. 1

    control fan thru micro controller

    Hi Guy, Thank you so much for the help. I be able to use the arduino with the fan.
  2. 1

    control fan thru micro controller

    Hi everyone, I would like to ask question relating to micro controller, arduino. I would like to use an arduino to control the fan (computer fan). It needs about 5 volt and 0.7amp to turn on. If i use the arduino, the output port does not have that much of current. Please advise where can I get...
  3. 1

    -3db and insertion loss

    Hi everyone, I would like to clarify a concept. For bandwidth of the interconnect related to rise time (10GHz Bandwidth, then rise time would be .35 ns) . If i would use the VNA to measure the insertion loss of the interconnect, and -3db would be like 1GHz (that would be too low). This mean the...
  4. 1

    .tgz file to PAD layout

    Hi everyone, I would like to ask it is possible to open file that generated from CAMCAD like .tgz file to PAD layout. Can you guy please direct me to the instruction. Please help. Thanks
  5. 1

    camcad to Pad layout and to hyperlynx

    hi sivamani, Thank you for your reply. I would like to ask what do you use to take file from CAMCAD to PAD layout. All I want is to simulate using hyperlynx. The manufacture file I have is .tgz. How would you read .tgz file to hyperlynx. Please help if anyone know. Thanks
  6. 1

    camcad to Pad layout and to hyperlynx

    Hi everyone, I would like to ask it possible to import from CAMCAD to Pad layout or to Hyperlynx. If is possible, will the constraint still remain the same during the conversion. Thanks
  7. 1

    [SOLVED] Cadence view setting

    Thank you everyone, I began to get the use of it. Thanks
  8. 1

    PCI Express edge card connector footprint, PCI Express ×4

    Hi everyone, I have PCI express signal layout on pin connection and now i would like to convert it to PCI Express edge card connector footprint. I would like to ask can you guy point me out to the PCI Express edge card connector footprint. it is a PCI Express ×4. I am using PAD layout. So i am...
  9. 1

    [SOLVED] Cadence view setting

    Hi Everyone, I have been using Mentor Graphic PAD to do layout for a long time. Now, the company is switching over to Cadence PCB. I get used to the view of PAD layout (view of PCB decal, explorer window on the right with all the component). I would like to ask do Cadence have the view like PAD...
  10. 1

    [SOLVED] paralle vs series at high speed

    Hi AdvaRes, Thank you so much for clarify the concept. I would like to make sure that I understand the concept correctly, so the 4 serial line (2 pair of differential signal) are parallel with the other 4 serial IO devices. Regarding the 2.5Gbps on each IO, and each carried 4bit. This mean each...
  11. 1

    [SOLVED] paralle vs series at high speed

    Hi everyone, Can someone explain to me the concept of serial and parallel. For parallel 256 pcb traces needed to implement a full duplex, 10Gbps interface using two 128bit wide synchronous LVTTL buses running at 78MHz. For Serial The same data bandwidth can be implement using only 16 PCB...
  12. 1

    [SOLVED] PAD auto placement and allegro

    Thanks sivamni and praveenlb.
  13. 1

    [SOLVED] PAD auto placement and allegro

    Thank you for suggestions. Some one did a schematic is DXDesigner and now I need to do layout in PAD. The board has about 2000 components with 20 layers board. I created all the PCB decal and push over to PAD layout. Now I need to do the layout. I would like to ask do you have any document on...
  14. 1

    [SOLVED] PAD auto placement and allegro

    Hi Everyone, I used PAD to do PCB layout. The board that I am working has almost 2k of components footprint. I noticed that PAD does not have auto placement option. I search on google, and some people suggested to export the netlist to allegro to do auto placement. I would like to ask what is...
  15. 1

    80SJNB on DSA8200 with BERT N4903

    Hi everyone, I hope you guy can help me out. I have a BERT Agilent N4903. I use the N4903 pattern generator connect to the DUT. I use the DSA 8200 TDR (with a 80A06 module). The DSA 8200 have 80SJNB version 2.0.0.0 software installed. Question is when I use the DSA i can see the eye diagram...
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