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SI1142 Datasheet(PDF) 2 Page - Silicon Laboratories |
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SI1142 Datasheet(HTML) 2 Page - Silicon Laboratories |
2 / 66 page Si1141/42/43 2 Preliminary Rev. 0.5 Functional Block Diagram Figure 1. Si1141 Basic Application Figure 2. Si1143 Application with Three LEDs and Separate LED Power Supply Note: For more application examples, refer to “AN498: irLED Selection Guide for Si114x Proximity Applications”. Visible VDD SDA SCL Regulator I2C LED Drivers LED1 LED32 LED21 GND INT Infrared Registers A M U X ADC Tem p Filter Oscillator Digital Sequencer & Control Logic 1. Si1142 and Si1143 only. 2. Si1143 only. SDA SCL VDD INT LED1 GND CVDD CVDD Si1141 15 µF, 20%, >6 V 30 ohm 5%, 1/16 W 3.3 V 0.1 uF Host SDA SCL INT SDA SCL VDD INT LED1 GND LED3 LED2 Si1143 22 uF, 20%, >6V 30 ohm 5%, 1/16 W 3.3 V 0.1 uF Host 4.3 V No Pop |
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