Data Sheet

Pin Name Pin(s) Description Pin Name Pin(s) Description
PE6 47 GPIO
PE5 48 GPIO
PC4 49 GPIO PA6 50 GPIO
PA15 51 GPIO RF1 53
External antenna connection on
WGM160P22N. Not connected on
WGM160P22A.
Note:
1.
GPIO with 5V tolerance are indicated by (5V).
2.2 Power Pin
The
WGM160P module is supplied through the VBAT pin. There is no need for external bypass capacitors as the ICs decoupling is
performed within the module. Note that, although the VBAT supply is variable, the maximum TX output power can be achieved only
when the supply is set to 3.3 V or higher.
Note that pin VBUS cannot be used to supply the module.
2.3 RESETn Pin
The WGM160P module is reset by driving the RESETn pin low. A weak internal pull-up resistor holds the RESETn pin high allowing it
to be left unconnected if no external reset source is required.
Note that when WGM160P is not powered, RESETn must not be connected to an active supply through an external pull-up resistor as
this could damage the device.
Note also that the WGM160P features Power On Reset to keep WGM160P in reset mode until VBAT is high enough. For more details,
refer to the MCU EFM32GG11 reference manual.
2.4 RF Pins
The WGM160P module is available with two RF configurations.
Table 2.2. WGM160P RF Configuration
Part Numbers RF1 RF2
WGM160PX22KGA2
WGM160P022KGA2
Internal antenna.
Pin RF1 is not connected.
RF port
WGM160PX22KGN2
WGM160P022KGN2
RF port RF port
RF ports are internally matched to 50 Ω.
It is recommended to connect any unused RF port to ground through a 50 Ω resistor. Any of
the RF ports can be used in a similar way. However, performance obtained on RF1 is slightly better, so it is preferable to use this one.
Only one RF port is active at a given time, but the module can also achieve antenna diversity if the application requires it. Port selection
and antenna diversity enablement are achieved through software configuration.
UG384: WGM160P Hardware Design User’s Guide
WGM160P Pin Description
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