We are using ADV7842 with SDRAM (MT48LC16M16A2P-6A IT:G -Micron Technology Inc) in our custom board for analog inputs(VGA, Composite,S-video). All the interfaces are up without using SDRAM , but whenever we tried implementing composite video with 3D comb filter it is not working.
Please help me to resolve below queries.
1. Whether the selected SDRAM will work with ADV7842?
2. DDR SDRAM has been used in EVM whereas we have used SDR-SDRAM.
3. I have attached our video schematic part. Please let me know any hardware change is required for SDR?
4.Is there any software setting to ADV7842 is required for DDR to SDR selection.