SI1152

Si115x Data Sheet Proximity/Ambient Light Sensor IC with I2C Interface The Si115x-AB00/AB09/AB9x is an ambient light sensor, proximity, and gesture detector with I2C digital interface and programmable-event interrupt output. This touchless sensor IC includes dual 23-bit analog-to-digital converters, an integrated high-sensitivity array of visible and infrared photodiodes, a digital signal processor, and up to three integrated LED drivers with programmable drive levels. The Si115x offers excellent performance under a wide dynamic range and a variety of light sources, including direct sunlight. The Si115x can also work under dark glass covers. The photodiode response and associated digital conversion circuitry provide excellent immunity to artificial light flicker noise and natural light flutter noise. With two or more LEDs, the Si115x is capable of supporting multiple-axis proximity motion detection. The Si115x is provided in a 10-lead 2x2 mm DFN package or in a 10-lead 2.9x4.9 mm LGA module with integrated LED, and is capable of operation from 1.62 to 3.6 V over the –40 to +85 °C temperature range. 940 nm Bandpass Filter. VDD LIGHT Regulator ALS Photodiodes . . (Filter Only in AB09 & AB9X versions) MUX Internal Osc. ADC1 ADC2 Signal Processor and Control LED Drivers LED1 LED2 * LED3 ** INT SCL SDA I2C Engine AD I2C addr sel * Pull up to VDD with 47 kOhm resistor to select primary I2C address (0x53), or down to GND for alt I2C address 0x52. LED2 driving capab...