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XBP24CAUIS-001 hw questions

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First time I am using XBEE modules, I have few questions about pcb

1.- if analog I/O unused, VREF pin must be connect to VCC or can be left open ?

2.- Also for u.Fl version must be created the keepout area (user manual 90001500 pg.24) ?

3.- Poligon pour under the module must be float or can be connect to GND (user manual 90001500 pg.153)? I must only create the copper keepout region under RF pads.
asked Jan 27, 2017 in IEEE 802.15.4 by accacca New to the Community (2 points)

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1 Answer

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That module uses an internal VREF so the VREF pin is used as a pin compatible function for the S1 hardware. IE it is not used and can be left disconnected.
answered Jan 31, 2017 by mvut Veteran of the Digi Community (11,302 points)
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