2.3.1 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 WILCS02 Module.

Figure 2-5. Recommended Module Power Supply Connections

The value of the C1, C2 and C3 capacitors may vary based on the application requirements and source of supply voltage. The C1, C2 and C3 capacitors must be placed close to the pin.