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ADV7180 decoder settings specific to CVBS o/p from unipolar DAC

Question asked by suni on Dec 8, 2010
Latest reply on Dec 9, 2010 by MikeM

Hi,

I have and ADV7180 decoder chip. Also I have two CVBS sources one coming from a unipolar DAC

and another coming from a bipolar DAC.

 

I observed that the luma component when the CVBS signal from coming from bipolar DAC is given to the

decoder is double of that received  when CVBS signals from unipolar DAC is given to the decoder

 

Does the decoder differentiate between the two CVBS sources? Is there any specific decoder setting that

needs to be done when the CVBS signal from a unipolar DAC is given to the decoder.

 

Regards

suni

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