STK3308

Description

The STK3308 is an integrated ambient and infrared light to digital converter with a built-in IR 
LED and I2C interface. This device provides not only ambient light sensing to allow robust backlight/display brightness control but also infrared sensing to allow proximity estimation featured 
with interrupt function.

For ambient light sensing, the STK3308 incorporates a photodiode, timing controller and ADC in a single chip. The excellent spectral response is designed to be close-to human eye. The STK3308 issuitable for detecting a wide range of light intensity environment. The maximum detecting light 
intensity is 6.5K Lux.

For proximity sensing, the STK3308 also incorporates a photodiode, timing controller and ADC in the same chip. The spectral response is optimized for wavelength 850nm infrared light. The STK3308provides programmable duty setting to drive IR LED and employs a noise cancellation scheme to 
highly reject unwanted ambient IR noise.


The proximity sensor is optimized so that the black card at 0-cm can be detected. Please contact with sensortek for further application solution.

The STK3308 has excellent temperature compensation, robust on-chip refresh rate setting without
external components. Software shutdown mode control is provided for power saving application. TheSTK3308 operating voltage range is 1.7V to 3.6V
 Applications

Mobile Phone, Smart-phone, PDA

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