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HPA_A and HPA_B Output Specification Clarification

Question asked by andy1958 on Apr 21, 2015
Latest reply on May 7, 2015 by GuenterL


I'm working with a hardware team on a new design using the ADV7619.  We seem to have discovered an anomaly in the documentation regarding HPA_A and HPA_B.


In the ADV7619 Reference Manual UG-237 Rev C. it is stated (pages 13 & 31) that HPA_A and HPA_B are open drain and need pull-up resistors.

However in the ADV7619 Datasheet Revision C these pins are shown as ordinary digital outputs (page 4) and as 5 V tolerant (page 12).


Please can you clarify if they are open drain or ordinary outputs.

Thank You,