产品介绍
STK3338-V
Ambient Light Sensor and Proximity Sensor with Built-in IR VCSEL
1. OVERVIEW
Description
The STK3338-V is an integrated ambient and infrared light to digital converter with a built-in 940nm VCSEL (Vertical-Cavity Surface-Emitting Laser) diode 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 TK3338-V incorporates a photoiode, timing controller and ADC in a single chip. The excellent spectral response is designed to be close-to human eye. The STK3338-V is suitable for detecting a wide range of
light intensity environment. For proximity sensing, the STK3338-V also incorporates a photodiode, timing controller and ADC in the same chip. The spectral response of STK3338-V is optimized for wavelength 940nm infrared light. The STK3338-V provides programmable current setting to drive VCSEL and employs a noise cancellation scheme to highly reject unwanted ambient noise. The K3338-V has excellent temperature compensation, robust on-chip refresh rate setting without external components. Software shutdown mode control is provided for power saving application. The STK3338-V operating voltagerange is 1.7V to 3.0V.
Feature
Integrated ambient light sensor, proximity sensor and 940nm VCSEL diode in one package.
Proximity Sensor
16 bits resolution for proximity detection
Built-in VCSEL driver with flexible setting
– VCSEL turn-on time : 7 steps IT
– VCSEL current : 3.125 / 6.25/ 12.5 / 25 mA
Flexible interrupt setting
– Several interrupt modes meet application requirements.
– Flag modes are included.
– Intelligent persistence to speed up the response time : 1/2/4/16 times
Low noise design
High ambient light suppression
940nm VCSEL for STK3338-V.
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 compensation.
General
Fully digital control with I2C interface
– 1.7 ~ 3.6V I2C interface
Low power design
– Standby mode
– Wait mode
VDD operation voltage : 1.7~3.0V
Available package options: OLGA
– STK3338-V : 2.84 x 1.44 x 0.65 (mm)
Lead-free package (RoHS compliant)
Moisture Sensitivity Level 3
Applications
Mobile Phone, Smart-phone, PDA
产品替代
声明：本产品内容及配图源自互联网收集或平台用户自行上传，目的在于传递更多信息，并不代表本网赞同其观点或证实其内容真实性，不承担此类作品侵权行为的直接责任及连带责任。如涉及作品内容、版权等问题，请联系本网处理，侵权内容将在一周内下架整改。
环境光传感器相关品牌
环境光传感器同类产品
加载中···
