EFR32MG12 2400/434 MHz Dual Band
10 dBm Radio Board
BRD4173A Reference Manual
The BRD4173A Mighty Gecko Radio Board enables developers to develop Zigbee,
Thread, Bluetooth
®
Low Energy and proprietary wireless applications. The board con-
tains a dual-band Mighty Gecko Wireless System-on-Chip and it is optimized for operat-
ing at 10 dBm output power. For the 2.4 GHz band with the on-board printed antenna
and UFL connector, radiated and conducted testing is supported. For the 434 MHz
band, the on-board SMA connector enables conducted testing and attachment of exter-
nal whip antenna for radiated tests.
The BRD4173A Mighty Gecko Radio Board plugs into the Wireless Starter Kit Main-
board, which is included with the Mighty Gecko Starter Kit and gives access to display,
buttons, and additional features from Expansion Boards. With the supporting Simplicity
Studio suite of tools, developers can take advantage of graphical wireless application
development, mesh networking debug and packet trace, and visual energy profiling and
optimization. The board also serves as an RF reference design for applications targeting
2.4 GHz and 434 MHz dual band wireless operation with 10 dBm output power.
RADIO BOARD FEATURES
• Wireless SoC:
EFR32MG12P433F1024GM48
• CPU core: ARM Cortex
®
-M4 with FPU
• Flash memory: 1024 kB
• RAM: 256 kB
• Operation frequency: 2.4 GHz + 434 MHz
• Transmit power: 10 dBm
• 2.4 GHz: Integrated PCB antenna, UFL
connector (optional)
• 434 MHz: Single SMA connector both for
transmit and receive
• Crystals for LFXO and HFXO: 32.768 kHz
and 38.4 MHz
• 8 Mbit low-power serial flash for over-the-
air updates
This document contains a brief introduction and description of the BRD4173A Radio
Board features, focusing on the RF sections and performance.
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