APDS-9901 Datasheet, PDF (1/28 Pages) AVAGO TECHNOLOGIES LIMITED – Digital Proximity and Ambient Light Sensor

APDS-9900 and APDS-9901
Digital Proximity and Ambient Light Sensor
Data Sheet
Description
The APDS-9900/9901 provides digital ambient light
sensing (ALS), IR LED and a complete proximity detection
system in a single 8 pin package. The proximity function
offers plug and play detection to 100 mm (without front
glass) thus eliminating the need for factory calibration
of the end equipment or sub-assembly. The proximity
detection feature operates well from bright sunlight
to dark rooms. The wide dynamic range also allows for
operation in short distance detection behind dark glass
such as a cell phone. In addition, an internal state machine
provides the ability to put the device into a low power
mode in between ALS and proximity measurements
providing very low average power consumption. The ALS
provides a photopic response to light intensity in very low
light condition or behind a dark faceplate.
The APDS-9900/9901 is particularly useful for display
management with the purpose of extending battery life
and providing optimum viewing in diverse lighting con-
ditions. Display panel and keyboard backlighting can
account for up to 30 to 40 percent of total platform power.
The ALS features are ideal for use in notebook PCs, LCD
monitors, flat-panel televisions, and cell phones.
The proximity function is targeted specifically towards
near field proximity applications. In cell phones, the
proximity detection can detect when the user positions
the phone close to their ear. The device is fast enough
to provide proximity information at a high repetition
rate needed when answering a phone call. This provides
both improved “green” power saving capability and the
added security to lock the computer when the user is not
present. The addition of the micro-optics lenses within
the module, provide highly efficient transmission and
reception of infrared energy which lowers overall power
dissipation.
Ordering Information
Part Number
APDS-9900
APDS-9901
Packaging
Tape & Reel
Tape & Reel
Quantity
2500 per reel
2500 per reel
Features
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 Operates Behind Darkened Glass
– Up to 1,000,000:1 Dynamic Range
• Proximity Detection
– Fully Calibrated to 100 mm Detection
– Integrated IR LED and Synchronous LED Driver
– Eliminates “Factory Calibration” of Prox
– Covers a 2000:1 Dynamic Range
• Programmable Wait Timer
– Wait State Power – 70 µA Typical
– Programmable from 2.72 ms to > 6 Sec
• I²C Interface Compatible
– Up to 400 kHz (I²C Fast-Mode)
– Dedicated Interrupt Pin
• Sleep Mode Power - 2.5 µA Typical
• Small Package L3.94 x W2.36 x H1.35 mm
Applications
• Cell Phone Backlight Dimming
• Cell Phone Touch-screen Disable
• Notebook/Monitor Security
• Automatic Speakerphone Enable
• Automatic Menu Pop-up
• Digital Camera Eye Sensor
8 - VDD
7 - SCL
6 - GND
5 - LED A
1 - SDA
2 - INT
3 - LDR
4 - LED K