Please help me to analyze a problem,thank you!
First, 3 camera signal definition:
1) test found that the four lines are: power supply, GND, CVBS+, CVBS-
2) GND and CVBS- in the camera side are in short connection.
3) all singal are conncted to my board.
second, three cameras had tested.
Use ADV7282-M ,
1 ) Pseudo differential input : A camera appears heavy shadow, the other 2 are normal,
2 ) But single ended input :The 3 cameras are normal.
Follow is schematic of Pseudo difference input