APDS-9130

Description

The APDS-9130 provides IR LED and a complete proximity detection system in a single 8 pin package. The proximity function offers plug and play detection 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. 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.

Features

IR LED and Proximity Detector in an Optical Module Proximity Detection � Fully Calibrated 100 mm Detection � Integrated IR LED and Synchronous LED Driver � Eliminates "Factory Calibration" of Prox Programmable Wait Timer � Wait State Power 90 �A Typical � Programmable from > 8 sec I2C Interface Compatible to 400 kHz (I2C Fast-Mode) � Dedicated Interrupt Pin Sleep Mode Power 2.2 �A Typical Small Package H1.35 mm

Applications

Cell Phone Touch-screen Disable Notebook/Monitor Security Automatic Speakerphone Enable Automatic Menu Pop-up Digital Camera Eye Sensor

Tape & Reel Tape & Reel Tape & Reel
VDD Interrupt Upper Threshold Prox Detect ADC Data Lower Threshold I2C Interface SCL INT

The APDS-9130 device provides on-chip Ch1 diode, integrating amplifiers, ADCs, accumulators, clocks, buffers, comparators, a state machine and an I2C interface. Each device has one Ch1 infrared-responding (IR) photodiode. Communication to the device is accomplished through a fast (up to 400 kHz), two-wire I2C serial bus for easy connection to a microcontroller or embedded controller. The digital output of the APDS-9130 device is inherently more immune to noise when compared to an analog interface. The APDS-9130 provides a separate pin for level-style interrupts. When interrupts are enabled and a pre-set value is exceeded, the interrupt pin is asserted and remains asserted until cleared by the controlling firmware. The interrupt feature simplifies and improves system efficiency by eliminating the need to poll a sensor for a proximity value. An interrupt is generated when the value of proximity conversion exceeds either an upper or lower threshold. Additionally, a programmable interrupt persistence feature allows the user to determine how many consecutive exceeded thresholds are necessary to trigger an interrupt. Interrupt thresholds and persistence settings are configured independently for proximity. Proximity detection is fully provided with nm IR LED. An internal LED driver (LDR) pin, is jumper connected to the LED cathode (LED K) to provide a factory calibrated proximity 100 20 mm. This is accomplished with a proprietary current calibration technique that accounts for all variances in silicon, optics, package and most importantly IR LED output power. This will eliminate or greatly reduce the need for factory calibration that is required for most discrete proximity sensor solutions. While the APDS-9130 is factory calibrated at a given pulse count, the number of proximity LED pulses can be programmed from to 255 pulses, which will allow greater proximity distances to be achieved. Each pulse has 16 �s period.

DESCRIPTION

I2C serial data I/O terminal � serial data I/O for I2C. Interrupt � open drain. LED driver for proximity emitter to 100 mA, open drain. LED Cathode, connect to LDR pin in most systems to use internal LED driver circuit LED Anode, connect to VBATT on PCB Power supply ground. All voltages are referenced to GND. I2C serial clock input terminal � clock signal for I2C serial data. Power Supply voltage.

Absolute Maximum Ratings over operating free-air temperature range (unless otherwise noted)
Power Supply voltage Digital voltage range Digital output current Storage temperature range

Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. Note: 1. All voltages are with respect to GND.

Operating Ambient Temperature Supply voltage Supply Voltage Accuracy, VDD total error including transients LED Supply Voltage VBATT

Feature

Applications