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DS90UB913A-Q1: connections with DS90UB914A-Q1, using POC, the lock signal jumping

Part Number: DS90UB913A-Q1

Hi team,

Here is a multi-camera image mosaic project  if the power supply add to  the Serializer alone,  can normally serialize and deserialize ; if  POC power supply is used, there will be a LOCK signal jumping. to observe the POC filter output voltage stability (no significant drop), FPD-LINK signal eye diagram also reconciliation. When the string is normal, it is basically consistent (no template can be used to compare the two eye charts).

What are the possible reasons for this phenomenon?

 Best Regards

Gene