View1

View2

General Description

AS3021 photo IC, consisting of a photodiode and a current amplification IC, is a cost effective solution to the power saving of display backlighting of mobile appliances, such as the mobile phones and PDAs. Due to the high rejection ratio of infrared radiation, the spectral response of the ambient light sensor is close to that of human eyes.

Features

• Close to the human eye's response

• Good output linearity across wide illumination range

• Low sensitivity variation across various light sources

• Guaranteed temperature performance, -30°C to 85°C

• Wide supply voltage range, 2.7V to 5.5V

• Chip size : 1.152mm × 0.792mm = 0.912mm 2

• Detection of ambient light to control display backlighting

Mobile devices - mobile phones, PDAs

Computing devices - TFT LCD monitor for notebook computer

Consumer devices - TFT LCD TV, plasma TV, video camera, digital still camera

• Automatic residential and commercial lighting management

• Automatic contrast enhancement for electronic signboard

• Ambient light monitoring device for daylight and artificial light