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TCS34907FN Datasheet(PDF) 23 Page - ams AG |
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TCS34907FN Datasheet(HTML) 23 Page - ams AG |
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23 / 34 page  ams Datasheet Page 23 [v1-09] 2016-Jan-11 Document Feedback TCS3490 − Power Supply Considerations Place a 1-μF low-ESR decoupling capacitor as close as possible to the VDD pin. Figure 33: Typical Application Hardware Circuit VBUS in the above figures refers to the I²C bus voltage which is either VDD or 1.8 V. Be sure to apply the specified I²C bus voltage shown in the Ordering & Contact Information for the specific device being used. The I²C signals and the Interrupt are open-drain outputs and require pull−up resistors. The pull-up resistor (RP) value is a function of the I²C bus speed, the I²C bus voltage, and the capacitive load. The ams EVM running at 400 kbps, uses 1.5-kΩ resistors. A 10-kΩ pull-up resistor (RPI) can be used for the interrupt line. Power Supply Considerations TCS3490 VDD 1 µF VBUS GND I/C INT SCL SDA RP RP RPI Voltage Regulator Cap sized per regulator specs |
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