Broadcom APDS-9922/APDS-9160 Ambient Light and Proximity Sensors provide a digital I2C compatible interface ambient light sensor (ALS) and proximity sensor with IR LED in a single 8-pin package. The ALS allows a photopic response to light intensity in low light conditions or behind a dark faceplate. The device approximates the human eye's response, providing a direct readout where the output count is proportional to the ambient light level. The APDS-9922/APDS-9160 Sensors feature a low light functionality, enabling operation behind darkened glass. The proximity detection feature operates well in bright sunlight to dark rooms. The micro-optics lenses within the module allow highly efficient transmission and reception of infrared energy, which lowers overall power dissipation. The device utilizes the low-power standby mode resulting in a very low average power consumption.
ALS, IR LED, and Proximity detector in an optical module
Ambient Light Sensing (ALS)
Light output proportional to light intensity
Uses optical coating technology to emulate the human eye spectral response
Works well under different light source conditions