Datasheet
MLX90640 32x24 IR array
Datasheet
Page 29 of 60
REVISION 11 – 3 AUGUST 2018
?*
a0bcM3
KK
>p%q(
>p>>˜>
%
u
<N (unsigned) (the same one as for the
?*&w…'
coefficients)
Where:
?*
{-Mšš
°
‰‰ (signed)
If
?*
{-Mšš
?*
{-Mšš
?*
{-Mšš
11.1.16.
11.1.16.11.1.16.
11.1.16. Restoring the TGC coefficient
Restoring the TGC coefficientRestoring the TGC coefficient
Restoring the TGC coefficient
)±=
?²`
šš
%
9
Where:
)±=
KK
Š
‰‰ (signed)
If )±=
KK
)±=
KK
)±=
KK
NOTE 1: In a MLX90640ESF–BAx–000-TU device, the TGC coefficient is set to 0 and must not be changed.
NOTE 2: In a MLX90640ESF–BCx–000-TU device, the EEPROM contains a typical value for the TGC coefficient but the
user may choose to adjust the value such to best fit for a specific application. Using the TGC increases noise in the
temperature calculations which can be reduced by external filtering (averaging) of the CP sensor data. By making the
TGC coefficient “0” the gradients compensation is bypassed.
11.1.17.
11.1.17.11.1.17.
11.1.17. Restorin
RestorinRestorin
Restoring the resolution control coefficient
g the resolution control coefficientg the resolution control coefficient
g the resolution control coefficient
@YXoF³ZOo•
KK
KK
>p%q(
>p(>>>
%
38
(unsigned)