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DS80PCI102: signal failure.

Tommy Tzeng
Genius 5780 points
Part Number: DS80PCI102

Hi Sir,

At present, the attached schematic PCI-E has no output signal, and the bypass DS80PCI102 can be pass test, but through DS80PCI102 is failure.

could help us check this schematic or suggestion.

SR-N707-G0A-1_20200901.pdf

  • 0
    TI__Guru* 93670 points

    Greetings,

    I reviewed this schematic. 

    1). If i understand this correctly, when you use wire to bypass the device it is working fine. But when DS80PCI102 is plugged in the signal does not go through. Please confirm my understanding.

    2). If #1 above is true, can you please pull RXDET pin#22 to "1" - note table 4 of the data sheet - do you see any difference?

    3). To start with, please put EQA0=EQA1=EQB0=EQB1=0 or 1K to GND

    4). To start with, please put VOD_SEL=DEMA=DEMB= 1K ohm to GND

    Please let us know the result.

    Regards,, Nasser