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ADV7393 cross colour effect suppression

Question asked by tbutters Employee on Mar 16, 2016
Latest reply on Mar 22, 2016 by JeyasudhaMuthuPerumal

working on the correct register settings of the ADV7393 Encoder, there appears top be a problem. In order to achive optimum cross Color effect suppression, the following register settings have been identified as an optimum.

RegisterAddressReset ValueProgrammed Value

 

Power Mode
Mode Select
Mode Register 0
DAC1…DAC3
Output Level
DAC Power Mode
Cable detection
Software Reset
SD Mode Register 1
SD Mode Register 2
SD Mode Register 3
SD Mode Register 4
SD Mode Register 5
SD Mode Register 6
SD Mode Register 7
SD Mode Register 8
SD Timing Register
SD Timing Register 1
SD Fsc Register 0
SD Fsc Register 1
SD Fsc Register 2
SD Fsc Register 3

 

0x00
0x01
0x02
0x0B
0x0D
0x10
0x17
0x80
0x82
0x83
0x84
0x86
0x87
0x88
0x89
0x8A
0x8B
0x8C
0x8D
0x8E
0x8F

 

0x12
0x00
0x20
0x00
0x00
0x00
0x00
0x10
0x0B
0x04
0x00
0x02
0x00
0x00
0x00
0x08
0x00
0xCB
0x8A
0x09
0x2A

 

0x10
0x00
0x20
0x00
0x00
0x00
0x00
0x3D
0x4B
0x04
0x00
0x02
0x80
0x10
0x00
0x0C
0x00
0xCB
0x8A
0x09
0x2A

Can you please check whether these are correct for the following desired operating mode?

 

Video Format: PAL / Interlaced Mode

Input: RGB 16Bit (SD)

Output CVBS

Oversampling: x16 (SD)

 

 

For cross color effect suppression, they used „SD Mode Register 1“ (Address 0x80) , code 0x3D, which yielded in the best results.

This setting is named „Reserved“ for the SD Luma filter and SD chroma Filter „0,65MHz“.

 

 

What does the setting „reserved” mean in context with the SD Luma filter ?

Is there another method to suppress the cross color effect?

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