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ADV7619 YUV to RGB color value

Question asked by JustinWu_Ans on Feb 24, 2016
Latest reply on Apr 6, 2016 by JustinWu_Ans

Dear Sir,

 

Is there any one can help to check color value from ADV7619?

I posted the question in another discussion , Could you help to check it?

 

https://ez.analog.com/message/241903#241903

 

 

We designed two video capture card by ADV7619 and ADV7441A.

But we would like to convert color domain by ADV7619 or ADV7441A , As we tested , we got some different between ADV7441A.

The test result is ADV7619 provided poor peformance than ADV7441A.

  (1) Pattern Generator (set RED Pattern) -> ADV7619 -> FPGA ->PCI-E -> PC

      >> We got the RGB value from our system, the R = 251,G=0, B=0.

  (2) Pattern Generator (set RED Pattern) -> ADV441A -> FPGA ->PCI-E -> PC
      >> We got the RGB value from our system, the R = 254 ,G=0, B=0.

Pattern gen output is 1080p/YUV709.

 

We check CSC table from ADV7619 and ADV7441A H/W user guide. It shall be same. But the result might some different. Is there any reason for this result?

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