cm3218 is an advanced ambient light sensor with i2c protocol interface and designed by the cmos process. it is easily operated via a simple i2c command. the active interruption feature within thethreshold windows setting offers the benefit of eliminating loading of the controller monitor.
  cm3218 incorporates a photodiode, amplifiers and analog circuits into a single chip.  the best spectral sensitivity is used to closely capture real human eye responses. cm3218 hasexcellent temperature compensation. its robust refresh rate setting does not need an external rc low pass filter. software shutdown mode is provided which reduces power consumption to be less than1μa. cm3218's operating voltage ranges from 2.7v to 5v and can detect a wide range of ambient light power. the maximum detective light strength is over 140k lux.
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深圳市政鸿微电子有限公司
何建花
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