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LX1977

Microsemi Corporation
Part Number LX1977
Manufacturer Microsemi Corporation
Description SMBus Ambient Light Sensor
Published Apr 26, 2015
Detailed Description WWW.Microsemi .COM LX1977 TM ® SMBus Ambient Light Sensor PRODUCTION DATASHEET DESCRIPTION The LX1977 is a CMOS base...
Datasheet PDF File LX1977 PDF File

LX1977
LX1977

Overview
WWW.
Microsemi .
COM LX1977 TM ® SMBus Ambient Light Sensor PRODUCTION DATASHEET 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.
The LX1977 has a spectral response that emulates the human eye.
Specially designed circuitry produces peak spectral response at 555 nm, with IR response less than 10% above 810 nm.
Input dynamic range of this device is adjustable via SMBus command.
It can be set to either 0 ~ 500 lux, 0 ~ 1000 lux, 0 ~ 2500 lux or 0 ~ 5000 lux.
ALS internal compensation ensures photodiode dark current are at very low levels, providing high output accuracy at low ambient light levels.
The LX197...


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