When my customer enter 100% blue from CVBS, the whole or part of the screen seems to flicker.
If it is all blue, it will be noticeable, if it is green, it will be visible or invisible depending on the person, and if it is red, flicker will not be visible.
The lower the brightness level, the more noticeable the impression.
* Video signal is input from the signal generator
Such a symptom does not occur when BT.656 is inserted via a decoder of another company.
The documentation says that the VREFP-VREFN capacitors should be mounted on the same side, so the wiring is routed and placed a little further away.
Is the position of the VREFP-VREFN capacitor a factor that causes flicker?
Also, although it is written on the circuit diagram that it should be mounted on the same surface as the device, the layout of the evaluation board is mounted on the opposite side of the device at the shortest distance.
Is it better to mount it on the same side or on the back side?
I want an answer right away.
[edited by: donadona999s at 5:46 AM (GMT -5) on 10 Dec 2020]