Si114xM Optical Sensor Common Specs
- High level of integration for ease of design
- Integrates Si114x optical sensor, IR LED, optical blocking, lens and aperatures
- Tiny 2.9 x 4.9 mm QFN
- Long battery life
- Single ultra-fast 25.6usec LED pulse minimizes LED power
- < 500nA standby
- 1.7 V to 3.6 V operation
- Up to 3 independently regulated LED Drivers for design flexibility
- Dynamically adjustable LED Drivers from 6mA to 360mA
- Minimize LED current based upon host processed reflectance levels
- Up to 2 external LEDs can be added to the one integrated LED
- No additional optical blocking required
- Ambient light sensor enables automatic backlight control
- Improves user visual experience and reduced backlight energy
- Accurate finger-tip or ear based heart rate sensing with integrated IR LED
- I²C interface for ease of communication with host MCU
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