LG LG-P970 - Illumination Sensor

3. TECHNICAL BRIEF
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Copyright © 2011 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
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3.21 Illumination Sensor
Illumination Sensor adjusts LCD backlight current by detecting the surrounding brightness.
If user checks the automatic brightness menu, LCD backlight current adjusting is to be enable automatically.
U101(VT_CAM FPCB) : BH1621 IC interface to AAT2870
Figure. Illumination Sensor Schematic
Figure. Illumination Sensor Block Diagram
G
U101
6
4 3
2
5 1
VCCIOUT
GND1
GC1GC2
2DN
G
LSENSOR_BIASLSENSOR_SENS