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ADV7513 questions about register setting

Question asked by Tak-8810 on Sep 4, 2014
Latest reply on Sep 9, 2014 by Sasa

Hello support team,

 

I have questions about "ADV7513 Low-Power HDMI 1.4A Compatible Transmitter PROGRAMMING GUIDE" as below.

http://www.analog.com/static/imported-files/eval_boards/ADV7513_Programming_Guide.pdf

 

Q1, "Aspect ratio of input video"(=0x17[1]) is a setting of input video signal, so it doesn't affect the output signal. Is this correct?
    Please teach me the details of the intended use of this setting item.

 

Q2, Why default value of "Clock delay(=0xBA[7:5]) is 000=-1.2ns?
    It is written as follows in the manual:
    "Programmable delay for input video clock. Default is 0 for no delay."
    Please tell me if there is a reason that is set to -1.2ns rather than "no delay".

 

Thanks,

Tak

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