STK3337-X Datasheet | Sensortek

STK3337-X Ambient Light Sensor and Proximity Sensor with Built-in IR LED Preliminary Datasheet Version - 0.9 STK3337-X REV 0.9 1. OVERVIEW Description The STK3337-X 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 STK3337-X incorporates a photodiode, timing controller and ADC in a single chip. The excellent spectral response is designed to be close-to human eye. The STK3337-X is suitable for detecting a wide range of light intensity environment. 940nm LED for STK3337-X. Ambient Light Sensor Convert ambient light intensity to 16-bit digital data format 3rd generation ambient light sensor which closes to human-eye response and suppress IR portion. Flexible digital settings - Integration time : 7 steps IT Flexible interrupt setting - Interrupt while out-of- window - Persistence : 1/2/4/8 times Clear channel for different light source pensation. For proximity sensing, the STK3337-X also incorporates a photodiode, timing controller and ADC in the same chip. The spectral response of STK3337-X is optimized for wavelength 940nm infrared light. The STK3337-X provides programmable current setting to drive IR LED and employs a noise cancellation scheme to highly reject unwanted ambient IR noise. The STK3337-X has excellent temperature pensation, robust on-chip refresh rate setting without external ponents. Software shutdown mode control is provided for power saving application. The STK3337-X operating voltage range is 1.7V to 3.0V. Feature Integrated ambient light sensor, proximity...