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C6748, Operating voltaje for group C

Dear TI

I have a trouble with the C6748, but first let me tell you a brief history. We designed and product based on the LCDKC6748. We acquire images from a digital camera sensor OV5640 and using the VPIF and everything works fine.

But now we designed and new product with other features and improvements (same C6748 and same OV5640). In this time we change the operated voltage of the group C (DVDD3318-C at 1.8 V). The reason is because our digital camera sensor operates at 1.8 V and the VPIF is in the group C and we want save a level-shifter IC. But now the images are too noisy, so, do I have to change/modify my C++ program in order to allow the 1.8V operation voltage?

Thank you in advance.