Hi team,
Customer is doing the 100BASE-T compliance test now. But their system can't pass only 3 topics related to output amplitude as below.
Goal value: 1000mV +/- 5%, while actual measurement: -7%, the amplitude was slightly lower than the threshold.
|
1 |
AOI Template |
FAIL |
|
2 |
Output Voltage(+Vout) |
FAIL |
|
3 |
Output Voltage(-Vout) |
FAIL |
They confirmed that their board layout is following the PCB layout guide line.
So, they think their system can pass the test by adjusting registers 0x9F, 0xA0 and 0xA1 as below post. So could you tell the details? But it seems there are no details and not sure how to adjsut those.
Regards,
Noriyuki Takahashi
