APDS-9960 datasheet(2/38 Pages) AVAGO

2 / 38 page

Functional Block Diagram

Description (Cont.)

Color and ALS detection

The Color and ALS detection feature provides red, green,

blue and clear light intensity data. Each of the R, G, B, C

channels have a UV and IR blocking filter and a dedicated

data converter producing16-bit data simultaneously. This

architecture allows applications to accurately measure

ambient light and sense color which enables devices to

calculate color temperature and control display backlight.

Interrupt

INT

SCL

SDA

Blue

Threshold

Control

GND

Green

Red

Clear

Right

Left

Down

LED K

LED A

VDD

LDR

32 x 4 Byte

FIFO

Gesture

Engine

Proximity

Engine

ALS

RGBC

ADC

PWM

Oscillator

Proximity detection

The Proximity detection feature provides distance mea-

surement (E.g. mobile device screen to user’s ear) by pho-

todiode detection of reflected IR energy (sourced by the in-

tegrated LED). Detect/release events are interrupt driven,

and occur whenever proximity result crosses upper and/

or lower threshold settings. The proximity engine features

offset adjustment registers to compensate for system

offset caused by unwanted IR energy reflections appear-

ing at the sensor. The IR LED intensity is factory trimmed

to eliminate the need for end-equipment calibration due

to component variations. Proximity results are further im-

proved by automatic ambient light subtraction.

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