APDS-9930 Digital Proximity and Ambient Light Sens

By Broadcom Limited 145

APDS-9930 Digital Proximity and Ambient Light Sens

Broadcom's APDS-9930 is a digital I²C-compatible interface ambient light sensor (ALS) and proximity sensor with IR LED in a single 8-pin package. The ambient light sensor utilizes dual photodiodes to approximate the human eye response with a low lux performance at 0.01 lux. This high sensitivity allows the device to operate behind darkened glass. The proximity sensor is fully calibrated to detect objects to 100 mm, eliminating the need for factory calibration of the end equipment or sub-assembly. The proximity detection feature operates well in any lighting from bright sunlight to dark rooms. The addition of micro-optic lenses within the module provides highly efficient transmission and reception of infrared energy, lowering overall power dissipation. In addition, an internal state machine provides the ability to put the device into a low power mode between ALS and proximity measurements, providing very low average power consumption.

  • ALS, IR LED, and proximity detector in an optical module
  • Ambient light sensing (ALS)
    • Approximates human eye response
    • Programmable interrupt function with upper and lower threshold
    • Up to 16-bit resolution
    • High sensitivity operation behind darkened glass
    • Low lux performance at 0.01 lux
  • Proximity detection
    • Fully calibrated to 100 mm detection
    • Integrated IR LED and synchronous LED driver
    • Eliminates factory calibration of proximity sensor
  • Programmable wait timer
    • Wait state power: 90 µA typical
    • Programmable from 2.7 ms to >8 sec
  • I²C interface compatible
    • Up to 400 kHz (I²C fast-mode)
    • Dedicated interrupt pin
  • Sleep mode power: 2.2 µA typical
  • Small package 3.94 mm x 2.36 mm x 1.35 mm (L x W x H)
  • Cell phone backlight dimming
  • Cell phone touchscreen disable
  • Notebook/monitor security
  • Automatic speakerphone enable
  • Automatic menu pop-up
  • Digital camera eye sensor


SensingSensorsBroadcom Limited