We are having troubles with receiving valid video timing from the ADV7619 but only when configured for 4Kp30 resolution. We have been using these parts for years without issue at FHD and now at 4K. And However there are times when the timing show issues after the input video is switched. We did some searching around and found this topic on the ADI Engineer Zone: ADV7619 VSYNC output issue (Link below)
Here are screen shoots of the issues we observe on the HDMI receiver parallel video output interface:
Here is the full topic just for reference: https://ez.analog.com/video/f/q-a/8711/adv7619-vsync-output-issue
Could someone to respond with:
Please let us know your Tx ? But "The bottom line is the ADV7619 receiver has passed 4k compliance testing on an in-house evaluation board".
Reference 4k2k script is available at 2047.ADV7619-VER.1.9c.zip and crosscheck your i2c configuration.
Descriptions of the undocumented settings that were recommended in other forum link? The undocumented settings that show up as "ADI Recommended Settings". Please refer here https://ez.analog.com/video/w/documents/835/adi-recommended-setting
Does the ADI7619 also have a 4K software package we can reference or migrate to our design? The software package for ADV7619 can be found in Evaluation board software