What should be connected to CLAMP pin on the IC? Do I need to put a100nF cap? Or can I leave it open and control the clamping through the registers?
The clamp pin is a digital intput. Based on timing it should clamp only during the black input period to get a fixed black level. You can use the clamp pin if you want to manually control the clamping timing. else allow the chip to do through registers. You should include the 1k pull down resistor.
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