2.2.1 Power Supply Pin

It is recommended to add a bulk and a decoupling capacitor at the input supply Pin 20 (VDD), Pin 23 (VDDIO) and GND of the RNWF02 module.

VDD and VDDIO can be connected to the same supply for the typical 3.3V operation. For I/Os to operate at a lower voltage, typically 1.8V, VDDIO can be connected separately along with a decoupling capacitor.

Figure 2-4. Recommended Module Power Supply Connections

The value of the C1 and C2 capacitors may vary based on the application requirements and source of supply voltage. The C1 and C2 capacitor must be placed close to the pin.

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