义嘉泰科技 STK37660 色温传感器

Description The STK37660 is an integrated color(RGB) and infrared light to digital converter with I2C interface. This device provides not only color(RGB)/ambient light sensing to allow robust backlight/display brightness control but also infrared sensing to allow proximity estimation featured with interrupt function. For color(RGB)/ambient light sensing, the STK37660 incorporates Red, Green, Blue coating photodiode array and a reference Clear photodiode array, timing controller and ADC in a single chip to accurately measure the ambient light illumination and the environment CCT (correlated color temperature) For proximity sensing, the STK37660 also incorporates a photodiode, timing controller and ADC in the same chip. The spectral response of STK37660 is optimized for wavelength 940nm infrared light. The STK37660 provides programmable current setting to drive IR LED and employs a noise cancellation scheme to highly reject unwanted ambient IR noise. The STK37660 has excellent temperature compensation, robust on-chip refresh rate setting without external components. Software shutdown mode control is provided for power saving application. The STK37660 operating voltage range is 1.7V to 2.0V.

Color Sensor ⚫ Convert ambient light intensity to 16-bit digital data format ⚫ RGB sensor which closes to ideal human-eye response and suppress IR portion to enhance the accuracy of color temperature calculation ⚫ Flexible digital settings – Long integration time : 8 steps IT ◆ 3.125 / 6.25 / 12.5 /... / 200 / 400 ms – Short integration time : 20 steps IT ◆ 192 / 288 / ... / 2112 us ⚫ Flexible interrupt setting – Interrupt while out-of- window – Persistence : 1/2/4/8 times ⚫ Clear channel for different light source identification ⚫ FIFO buffer size is 2048 byte – FIFO mode – Stream mode

General ⚫ Fully digital control with I2C interface – 1.7 ~ 3.6V I2C interface ⚫ Low power design – Standby mode – Wait mode ⚫ VDD wide operation voltage : 1.7~2.0V ⚫ Excellent temperature compensation: -40 to 85°C ⚫ Available package options: OLGA – STK37660 : 2.5 x 2.0 x 0.5 (mm) ⚫ Lead-free package (RoHS compliant) ⚫ Moisture Sensitivity Level 3