Datasheet

DS_INLC10AQ Revision 1.0_B

Inova Semiconductors Confidential

Page 27 of 35

4.6

DIM Function for Accurate Low Light Colors

T

o extend the SET_RGB command’s resolution for accurate low light colors, the INLC10AQ provides the

DIM command. The command divides the PWM duty cycles computed from the RGB setting. There are four

divisors available. Details are shown in Figure 20 and Table 27.

In order to use the full RGB range at the highest dim level (DIM 3), the PWMmax value must be at least 2048.

Figure 20

– DIM function

Parameter

Size

Description

PWMMax

12bit

Brightness calibration value

RGB

8bit

Color intensity value

DIM

2bit

Dimming value

TC

9bit

Temperature compensation factor

PWMGreen/Blue

12bit

((PWMMax x RGB + 128) >> 8) >> DIM

PWMRed (TC disabled)

12bit

((PWMMax x RGB + 128) >> 8) >> DIM

PWMRed (TC enabled)

12bit

((((PWMMax x RGB + 128) >> 8) x TC + 256) >> 9) >> DIM

Table 27

– DIM function