Hello,
I have a question about 1000 Base-T Compliance Test of DP83867.
My customer is implementing the 1000 Base-T Compliance Test.
<schematic>
<Test Conditions and Results>
- Oscilloscope:DSO9404A(Keysight)
- 1000 Base-T, Point A Peak Output Voltage(w/ Disturbing Signal)
Pass Limits : 670.0mV < VALUE < 820.0mV
Worst Actual : 565.9mV
- 1000 Base-T, Point B Peak Output Voltage(w/ Disturbing Signal)
Pass Limits : 670.0mV < VALUE < 820.0mV
Worst Actual : 570.5mV
- 1000 Base-T, MDI Common Mode Output Voltage
Pass Limits : 670.0mV < VALUE < 50.0mV
Worst Actual : 75.1mV
So, I have a question.
[Q]
1.Is there a way to increase the amplitude?
2.Can I pass the Compliance Test with the above circuit?
I am concerned that PoE is connected.
Best Regards,
Kaede Kudo
