New Sensor Module Helps to Reduce Power Consumption and Enhances Screen Resolution in a Variety of Lighting Conditions
Built in a surface mountable package that is 1.45 mm thick by 4.95 mm in length by 3.0 mm wide, the APDS-9800 offers many technical features that are required by mobile phone manufacturers such as an extended detection range, and signal conditioning circuitry which offers superior performance in bright sunlight conditions. The APDS-9800 is composed of four chips: an ambient light sensor IC; proximity sensor and signal conditioning IC; LED emitter; and detector. The ambient light sensor, which has a spectral response that is close to that of the human eye, is used to control display backlighting brightness. The proximity sensor signal conditioning IC consists of an LED driver and receiver circuit with excellent ambient light cancellation capability. The built-in LED and detector allow the sensor to detect the proximity of an object to the device.
Avago’s APDS-9800 includes a shutdown mode to conserve power consumption and extend battery life. Additionally, the pulse width, burst rate, duty cycle and frequency can be controlled to further minimize power consumption.
Key Features
- Small form factor: L 4.95 by W 3.0 by H 1.45 mm
- Spectral responsivity close to that of the human eye
- Built-in LED and detector for proximity detection
- Low sensitivity variation across various light sources
- Output linearity across a wide illumination range
- Operational under strong sunlight and artificial light environments
- Adjustable LED driving current, pulse and burst parameters
- Controllable gain and integration time through external resistor and capacitor
- LED stuck high protection to extend LED life
- Both analog and digital output available
- Shutdown mode with low current consumption
- Supply voltage range: 2.4 to 3.6V
- RoHS compliant
Pricing and Availability
Pricing for Avago’s APDS-9800 optical proximity sensor starts at
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Source:
Avago Technologies
Alain Dangerfield, +1-408-435-6385
alain.dangerfield@avagotech.com