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SN75DP130: Internal DP HPD circuit

Part Number: SN75DP130

Hi Sir,

May I learn from you that if IC is no power and OFF, the HPD_SNK should be isolate with HPD_SRC, correct?

In Intel design guide, it request a MOSFET isolate to avoid the back driver current at DP connector path.

Should we still need it when we use the re-driver topology?

Thank you.

Best regards,

Edward Chen