Part Number: DP83869HM
Other Parts Discussed in Thread: DP83869
HI Team:
could you pls help ?
1. The frequency and amplitude of 25MHz crystal waveform are normal;
2. PHY chip can identify by reading register query;
3. Most board power ports and light ports cannot be LinkUP;
4, a small part of the board can be LinkUP, but can not communicate;
5. The board that can be LinkUP can't communicate with the light port, and the measured SON and SOP waveforms are normal (62.5mhz, amplitude 200-500mv).
However, the sine and SIP waveforms are abnormal and deformed with a frequency of 16MHz.
