APDS-9151 Digital Proximity and RGB Sensor in Small Aperture Data Sheet Light output proportional to light intensity Description Utilizes optical coating technology to emulate human The Broadcom APDS-9151 is an integrated RGB, proximity eye spectral response detector and IR LED in an optical module. Works well under different light source conditions The APDS-9151 provides digital RGB, ambient light sensing Low light sensitivity operates behind darkened glass (ALS), IR LED, and a complete proximity detection system in a 50 Hz/60 Hz light flicker immunity single 8-pin package that is suitable to be used under a small Fluorescent light flicker immunity aperture of the devices cover windows. The APDS-9151 device Programmable interrupt function with upper, lower uses four individual channels of red, green, blue, and IR thresholds and persists function (RGB+IR) in a specially designed matrix arrangement. This Programmable LS integration time allows the device to have optimal angular response and accurate RGB spectral response with high lux accuracy over Programmable LS gain setting various light sources. The proximity detection feature operates Proximity detection (PS) well from bright sunlight to dark rooms. The APDS-9151 is Integrated IR LED and Synchronous LED driver particularly useful for display management with the purpose of 100K lux sunlight suppression extending battery life and providing optimum viewing in Cancellation of crosstalk diverse lighting conditions. Programmable interrupt function with upper, lower The APDS-9151 has a wide dynamic range. Current is thresholds and persists function programmable in eight different steps and the LED pulse Programmable LED drive current number can be varied from by pulse step, and the LED Supply voltage 1.7V to 3.6V modulation frequency can be set from 60 kHz to 100 kHz in five Power management steps. PS resolution can be varied from 8 bits to 11 bits, and the measurement rate is from 6.25 ms to 400 ms. To offset Low active current unwanted reflected light from the cover glass, a PS intelligent Low standby current cancellation level register allows for an on-chip subtraction of 2 I C interface compatible the ADC count caused by the unwanted reflected light from PS 2 Up to 400 kHz (I C Fast-Mode) ADC output. Dedicated interrupt pin Both the PS and ALS function independently allowing for Miniature package maximum flexibility in application. 2.55 mm (length) 2.05 mm (width) 0.95 mm (height) Features Applications RGB and ambient light sensing (RGB and ALS) OLED display control Accuracy of correlated colour temperature (CCT) RGB backlight control Individual channels for red, green, blue, and infrared Cell phone touch-screen disable Approximates human eye response with green Automatic speakerphone enable channel Digital camera eye sensor Broadcom - 1 -APDS-9151 Data Sheet Ordering Information Part Number Packaging Quantity APDS-9151 Tape and Reel 10,000 Functional Block Diagram Regulator Oscillator Interrupt INT VDD RGB + IR Control GND SCL RED ADC / Data Upper Threshold SDA GREEN ADC / Data Lower Threshold BLUE ADC / Data IR ADC / Data Upper Threshold PS ADC / Data LEDA Lower Threshold PS PD Constant Current IR LED Control Logic Sink LEDK LDR I/O Pins Configuration Pin Name Type Description 1 GND Ground Power supply ground. All voltages are referenced to GND 2 INT O Interrupt. Open drain 3 LDR I LED driver for proximity emitter up to 125 mA, open drain. 4 LEDK O LED Cathode, connect to LDR pin in most systems to use internal LED driver circuit 5 LEDA I LED supply voltage 6V Supply Power supply voltage DD 2 7SDA I/O Serial data I/O for I C 2 2 8 SCL I I C serial clock input terminal. Clock signal for I C serial data Broadcom - 2 - 2 I C Interfacing