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IRE at ADV7171 without pedestal setting

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Hello all,

 

Please let me know your advice the relationship between input signal and brightness described in datasheet P.13 DATA PATH DESCRIPTION.

Question1

We think below. Is this correct ?

Input 16: IRE0
Input 235:IRE 100


Question 2

  Is IRE  -7.3 IRE to 109 IRE at Input 0 ~255.?

  Equation
  100 / (235 - 16) ≒ 0.4566( IRE/ LSB)

IRE at Input 0 is 0.4566 x (0-16) ≒ -7.3 IRE ?
IRE at input 255 is 0.4566 x (255 - 16) ≒ 109 IRE?

 

Regards,


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