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ADV7341 Subcarrier reset


i am looking to understand, given the ADV7311 has gone EOL, the recommended part going forward to replace this was the ADV7341 as i understand.  One feature which is different between the ADV7311 and the ADV7341 are how the subcarrier reset is handled.  on the ADV7311 there was the RTC_SCR_TR pin which was used for this.  On the ADV7341 i read through some other posts that the subcarrier frequency lock should be used to replace this feature.  Are there more details can be shared on this implementation and how the two approaches are equivalent?