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VISHAY VCNL4200-SB
Long Distance Proximity & Ambient Light Sensor I2C For Use With SensorXplorer Demonstration Board
產品總覽
VCNL4200 integrates a high sensitivity long distance proximity sensor (PS), ambient light sensor (ALS), and 940nm IRED into one small package. It incorporates photodiodes, amplifiers, and analog to digital converting circuits into a single chip using a CMOS process. The 16-bit high resolution ALS offers excellent sensing capabilities with sufficient selections to fulfill most applications whether a dark or high transparency lens design. For the 12-bit / 16bit proximity sensing function, VCNL4200 has a built-in intelligent cancellation scheme that eliminates background light issues. The persistence feature prevents false judgment of proximity sensing due to ambient light noise.
- Integrated modules: infrared emitter (IRED), ambient light sensor (ALS), proximity sensor (PS), and signal conditioning IC
- Operates ALS and PS in parallel structure
- Filtron technology adoption for robust background light cancellation
- Supports low transmittance (dark) lens design
- Low power consumption I2C (SMBus compatible) interface
- Output type: I2C bus (ALS / PS)
- Proximity Function:
- Immunity to red glow (940 nm IRED)
- Intelligent background light cancellation
- Smart persistence scheme to reduce PS response time
- Proximity distance up to 1.5 m
- Ambient Light Function:
- Fluorescent light flicker immunity
- Spectrum close to real human eye responses
- Selectable maximum detection range (197/393/786/1573) lux with highest sensitivity 0.003lux/step
應用
Safety
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