Hi Experts,
Our customer is using TPS23861 to make the design, and meet below test issues, can you help to check what's the root cause? Thanks a lot!
Customer's schematic is attached:6644.SCHEMATIC1 _ 10 PSE.pdf
1. POE 802.af specification test can not pass the det_rsource test, error log as below:
Customer used sifos to capture the waveform(R=12kohm), it is not the normal detection waveform:
Customer also checked the waveform using oscilloscope, it will see some clutters along withe normal detection pulse:
2. Both the det_v and det_rsource can not be detected:
