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FAQ Can DOUT19/VS on the MAX9276A be used as a parallel data output instead of VS?

Yes, and the same can be said for the other sync signal pins, DOUT18/HS and DOUT20/DE.  There are some register settings that must be set properly before it is possible to get parallel data output from these pins.  All tracking, filtering, and inversion must be disabled for whichever pin is being used on both serializer and deserializer.  Here is a list of relevant settings:

Serializer
  • INVVSYNC = 0
  • INVHSYNC = 0
  • INVDE = 0
Deserializer
  • HVTREN = 0
  • DETREN = 0
  • DISDEFILT = 1
  • DISVSFILT = 1
  • DISHSFILT = 1
  • INVVSYNC = 0
  • INVHSYNC = 0
  • INVDE = 0
When using the MAX9276A EVKIT, be sure to remove JU_VS.  This jumper connects DOUT19/VS to a level translator for factory testing purposes.  The level translator can only support up to 8Mbps.  If a higher data rate is used on DOUT19/VS, the level translator will slow the edges of the signal and corrupt the output.