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Optical Sensor
Optical/Color Sensor With Single Function

Optical/Color Sensor With Single Function

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AL3320
The AL3320 is a low power, 16-bit digital ambient light sensor [ALS] in a RoHS-compliant ODFN package. This device provides a dynamic range from 0.65k lux to 100k lux by choosing different dynamic ranges and analog gains. To reduce power consumption, AL3320 could be operated under programmable waiting modes.
AL3320 is ideal for applications of display panel brightness adjustments in mobile devices. This function benefits end users through improving eye comfort, and optimizing device battery life. Simplified ADC count-to-lux conversion and high manufacturing accuracy makes the device easy to use and minimize calibration need in MP.
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Key Features
Technical data
Datasheet

I2C interface (FS @ 400k Hz)

Mode Select : Operation/Power Down

Built-in temperature compensation circuit

Wide operating temperature range (-30°C to +80°C)

Window loss compensation

Ambient Light Sensor
‧ 16-bit effective linear output (0~65535)
‧ 2 user selectable analog gain
‧ 4 user selectable dynamic ranges for each analog gain
‧ Anti-flicker rejection (reject 50/60 Hz)
‧ High sensitivity under darkened glass
‧ Small form factor 1.6mm x 1.6mm x 0.7mm
‧ RoHS compliant

Item Name

AL3320

Function

Digital Ambient Light Sensor

Digital Resolution

I²C, 16-bit ALS

Package

6Ld ODFN, 1.6*1.6*0.7mm

Supply Voltage (VDD)

1.7V ~ 1.9V

I²C Bus Pin Voltage (VBus)

1.7V ~ 1.9V