STLBC01 Datasheet, PDF (29/40 Pages) STMicroelectronics – Bluetooth low energy controller

STLBC01
Application design guidelines
8.3
Power supplies
In order to avoid any interference on the RF communication, all STBLC01 power supplies
need to be properly decoupled. In general, all decoupling capacitors defined in Figure 4
need to be as close as possible to the relative pin. Special caution needs to be taken for the
decoupling on AVDD_PA (power supply for PA) and VDD (power supply for digital part). It is
mandatory to put the decoupling capacitors as close as possible to the pin. All ground
connections must be as short as possible using vias directly to the ground plane. Avoid
sharing vias between different signals.
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