- 加工定制：否
- 品牌：其他
- 型号：STK3311-A
- 种类：光学
- 制作工艺：集成
- 输出信号：数字型
- 提供加工定制：否
- 材料：聚合物
- 材料物理性质：半导体
- 材料晶体结构：多晶
- 防护等级：1
- 线性度：
- 迟滞：
- 重复性：
- 灵敏度：高
- 漂移：低
- 分辨率：高
- 缸径×冲程：25
description
the stk3311-a is an integrated ambient and infrared light to digital converter with a built-in ir led and i2c interface. this device provides not onlyambient 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 stk3311-a incorporates a photodiode, timing controller and adc in a single chip. the excellent spectral response isdesigned to be close-to human eye. the stk3311-a is suitable for detecting a wide range of light intensity environment. the maximum detecting light intensity is 1.7k lux when using defaultsetting.
for proximity sensing, the stk3311-a also incorporates a photodiode, timing controller and adc in the same chip. the spectral response of stk3311-a isoptimized for wavelength 940nm infrared light. the stk3311-a provides 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 stk3311-a has excellent temperature compensation, robust on-chip refresh rate setting without external components. software shutdown mode controlis provided for power saving application. the stk3311-a operating voltage range is 1.7v to 3.6v.
feature
integrated ambient light sensor, proximity sensor and infrared led in one package.
proximity sensor
16 bits resolution for proximity detection built-in led driver with flexible setting
– led turn-on time : 16 steps it x 64 duty cycle options
– led current : 12.5 / 25 / 50 / 100 ma flexible interrupt setting
– several interrupt modes meet application requirements.
–flag modes are included.
– interrupt persistence : 1 / 4 times low noise design
ambient ir noise cancellation
– immunity to 50hz/60hz fluorescent light flicker
940nm led for stk3311-a.
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
– read the illuminance directly; unlike conventional solution calculated from two diodes’ data
flexible digital settings
– integration time : 0.2ms~6400ms flexible interrupt setting
–interrupt while out-of- window
–persistence : 1 / 4 times
maximum detecting ambient light intensity : 1.7 k lux when using default setting.
ir sensing mode
general
fully digital control with i2c interface
– 1.7 ~ 3.6v i2c interface low power design
–standby mode
–wait mode
time-multiplexing for sensing
vdd wide operation voltage : 1.7~3.6v
excellent temperature compensation: -40 to 85°c
package: 3.94x2.36x1.35(mm)
lead-free package (rohs compliant)
applications
mobile phone, smart-phone, pd
深圳市政鸿微电子专业代理光宝、矽创（昇佳）等各品牌的传感器和闪光灯，种类繁多、型号齐全，保证是原装正品，更多详情欢迎大家来电咨询！
深圳市政鸿微电子有限公司
何建花
18194085326
布龙路339号鸿生源科技园