DESCRIPTION
The LX1977 is a CMOS based Ambient Light Sensor (ALS) with an I2C compatible SMBus interface.
This device is ideal for controlling display back lighting systems of low cost consumer products such as TV, portable computers, handheld devices, or medical devices. The LX1977 is optimized for a linear, accurate, and very repeatable input and output transfer function. The device also features adjustable input range and gain.

KEY FEATURES
◾ Human Eye Spectral Response
◾ Very Low IR Sensitivity
◾ 12-bit Resolution
◾ 5% Typical Accuracy
◾ Rejection to 50/60Hz
   Interference
◾ Programmable Integration Time
◾ Programmable Interrupt Pin
◾ I2C compatible SMBus Interface
◾ Easy Processor Interface
◾ No Optical Filter Needed

APPLICATIONS
◾ Backlight Control for Notebook
◾ Backlight Control for TV
◾ Handheld Devices
◾ Medical Devices