A customer asked this:
I’m working with the HDMI receiver ADV7619 with the output bus always configured as a 20-bit YCbCr interface. I’m relying on the ADV7619 to do the color space conversion by using automatic CSC mode, but I noticed that it seems to be doing additional filtering on the data when going from 4:4:4 RGB to 4:2:2 YC. It’s pretty obvious putting a color bars pattern through and looking at the resulting output on a vector scope.
I tried enabling DS_WITHOUT_FILTER and see a difference, but it’s still not correct. It shouldn’t need filtering anyway since it’s going through the CSC to get from 4:4:4 to 4:2:2, right? Is there a way to disable all filtering on the data, and only do the CSC? I don’t see anything that stands out in the datasheet and user guides.
Can you address this?