Dedicate the layer immediately
below the layer containing the RF traces from the ATWINC15x0B for the ground. Ensure 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 ensure low inductance.
The power pins of the ATWINC15x0B 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 and avoid a long trace for this connection.
The ground pad of the decoupling
capacitor must have a via directly connected to the ground plane.
Each decoupling capacitor must
have its own via directly connected to the ground plane and directly connected
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.
