BGM13S22 Module Radio Board BRD4305C Reference Manual The BRD4305C Blue Gecko Radio Board contains a Blue Gecko BGM13S22 module which integrates Silicon Labs EFR32BG13 Blue Gecko SoC into a small form factor RADIO BOARD FEATURES System-in-Package (SiP) module. The fully certified module contains all components (a high-performance transceiver, an energy efficient 32-bit MCU, HF crystal, RF passives, Wireless Module: BGM13S22F512GA and antenna) required for a system-level implementation of Bluetooth Low Energy and CPU core: ARM Cortex -M4 with FPU proprietary wireless networks operating in the 2.4 GHz band with 8 dBm output power. Flash memory: 512 kB RAM: 64 kB The BRD4305C Blue Gecko Radio Board plugs into the Wireless Starter Kit Mainboard, Operation frequency: 2.4 GHz which is included with the Blue Gecko Starter Kit and gives access to display, buttons, and additional features from expansion boards. With the supporting Simplicity Studio Transmit power: 8 dBm suite of tools, developers can take advantage of graphical wireless application develop- Integrated chip antenna, RF matching ment, BGScript for Python-like scripting, and visual energy profiling and optimization. network, HF crystal, and decoupling Option for UFL connector This document contains a brief introduction and description of the BRD4305C Radio Crystal for LFXO: 32.768 kHz Board features, focusing on the RF performance. 8 Mbit low-power serial flash for over-the- air updates silabs.com Building a more connected world. Rev. 1.0 Table of Contents 1. Introduction................................3 2. Radio Board Connector ...........................4 2.1 Introduction...............................4 2.2 Radio Board Connector Pin Associations.....................4 3. Radio Board Block Summary .........................5 3.1 Introduction...............................5 3.2 Radio Board Block Diagram .........................5 3.3 Radio Board Block Description ........................5 3.3.1 Wireless SiP ............................5 3.3.2 LF Crystal Oscillator (LFXO).......................5 3.3.3 UFL Connector ...........................5 3.3.4 Radio Board Connectors ........................6 3.3.5 Serial Flash ............................6 3.3.6 Serial EEPROM...........................6 4. Mechanical Details .............................7 5. EMC Compliance..............................8 5.1 Introduction...............................8 5.2 EMC Regulations for 2.4 GHz ........................8 5.2.1 ETSI EN 300-328 Emission Limits for the 2400-2483.5 MHz Band ..........8 5.2.2 FCC15.247 Emission Limits for the 2400-2483.5 MHz Band ............8 5.2.3 Applied Emission Limits for the 2.4 GHz Band.................8 6. RF Performance ..............................9 6.1 Conducted Power Measurements .......................9 6.1.1 Conducted Measurements in the 2.4 GHz Band ................9 6.2 Radiated Power Measurements........................10 6.2.1 Radiated Measurements in the 2.4 GHz Band.................10 7. EMC Compliance Recommendations ......................11 7.1 Recommendations for 2.4 GHz ETSI EN 300-328 Compliance .............11 7.2 Recommendations for 2.4 GHz FCC 15.247 Compliance ...............11 8. Board Revision History .......................... 12 9. Errata ................................. 13 10. Document Revision History ........................ 14 silabs.com Building a more connected world. Rev. 1.0 2