Silicon Labs Flex Gecko EFR32FG13 Wireless Radio Board for RF Interfaces Matching Networks SLWRB4256A

The BRD4256A Flex Gecko Radio Board enables developers to develop proprietary wireless applications. The board contains a dual band Flex Gecko Wireless System on Chip and it is optimized for operating 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 868 MHz band the on-board SMA connector enables conducted testing and attachment of external whip antenna for radiated tests. The BRD4256A Flex Gecko Radio Board plugs into the Wireless Starter Kit Main board, which is provided with the Flex 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 and visual energy profiling and optimization. The board also serves as an RF reference design for applications targeting 2.4 GHz and 868 MHz dual band wireless operation with 10 dBm output power. This document contains brief introduction and description of the BRD4256A Radio Board features focusing on the RF sections and performance.

The Flex Gecko SLWRB4256A radio board plugs into the main board provided with the Flex Gecko Starter Kits. The radio board can also be used as a reference design for matching networks of the RF interfaces. The SLWRB4256A radio board supports dual-band operation with sub-GHz operation in the US FCC 868 MHz band with an external whip antenna, and 2.4 GHz operation at the 2400-2483.5 MHz band with the on-board printed antenna. The matching networks are optimized to +10 dBm output power.