Recommend the IC for mixing of sync pulse and green color signal.
What is your source analog or BT.601?
It is analog.
I am getting the analog RGB and HSync & VSync data's from external.
The requirement is to generate the Sync-on-Green signal.
Step-1: The composite sync signal is generating from HSync and VSync by XOR gate logic.
Step-2: The composite sync signal has to be mixed with analog green signal.
Recommend the IC for mixing this.
We have no specific chip to do this however adding sync on an analog green signal is a relatively simple circuit. Do a google search for 'sync on green'. Many of the results will be sync strippers but there are several circuits that add sync back to the green signal.
The basic concept is to AC couple the green signal and bias it by +0.300V then pull the output to ground during the sync pulse.
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