Dedicate the layer immediately below
the layer containing the RF traces from the ATWILC3000A for ground. Make sure that this ground plane does not
get broken up by routes.
Power traces can be routed on all layers except the ground layer.
Power supply routes must be heavy copper fill planes to insure low inductance.
The power pins of the ATWILC3000A must have a via directly to the
power plane, close to the power pin.
Decoupling capacitors must have a via next to the capacitor pin and this via must be
directly connected to the power plane. Avoid long trace for this connection.
The ground pad of the decoupling capacitor must have a via directly to the ground
plane.
Each decoupling capacitor must have its own via directly to the ground plane and
directly to the power plane next to the pad.
The decoupling capacitors must be placed as close as possible to the pin that it is
filtering.
The online versions of the documents are provided as a courtesy. Verify all content and data in the device’s PDF documentation found on the device product page.
