Digital Ambient Light Sensor (Als) - Nokia MOBILE TERMINAL Service Manual

RM-356
System Module and User Interface
Figure 70 Display backlighting system

Digital Ambient Light Sensor (ALS)

The Digital Ambient Light Sensor (N6502) approximates ambient light. Ambient light level together with
CABC and user settings adjust the display and keyboard illumination brightness. The Ambient Light Sensor is
located on the upper flex.
Figure 71 Digital Ambient Light Sensor location
It is connected to the I2C bus, and powered by the VOUT (2.5V) voltage.
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