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BGM220SC12 Module Radio Board

BRD4310A Reference Manual

The BRD4310A Wireless Gecko Radio Board contains a Wireless Gecko module which

integrates Silicon Labs' EFR32BG22 Wireless Gecko SoC into a small form factor Sys-

tem-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,

and antenna) required for a system-level implementation of Bluetooth

Low Energy

wireless networks operating in the 2.4 GHz band with 0 dBm output power.

RADIO BOARD FEATURES

• Wireless Module: BGM220SC12WGA2

•

CPU core: ARM Cortex

-M33

• Flash memory: 352 kB

• RAM: 32 kB

• Operation frequency: 2.4 GHz

• Transmit power: 0 dBm

• Integrated chip antenna, RF matching

network, HF crystal, and decoupling

• Option for UFL connector

• Crystal for LFXO: 32.768 kHz

• 8 Mbit low-power serial flash for over-the-

air updates

The BRD4310A Wireless Gecko Radio Board plugs into the Wireless Starter Kit Main-

board, which is included with the Wireless Gecko Starter Kit and gives access to dis-

play, buttons, and additional features from expansion boards. With the supporting Sim-

plicity Studio suite of tools, developers can take advantage of graphical wireless appli-

cation development, BGScript for Python-like scripting, and visual energy profiling and

optimization.

This document contains a brief introduction and description of the BRD4310A Radio

Board features, focusing on the RF performance.

silabs.com | Building a more connected world. Rev. 0.1

Summary of content (16 pages)

PAGE 1
BGM220SC12 Module Radio Board BRD4310A Reference Manual The BRD4310A Wireless Gecko Radio Board contains a Wireless Gecko module which integrates Silicon Labs' EFR32BG22 Wireless Gecko SoC into a small form factor 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, and antenna) required for a system-level implementation of Bluetooth® Low Energy wireless networks operating in the 2.
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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 . . . . .
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BRD4310A Reference Manual Introduction 1. Introduction The BRD4310A Radio Boards provide a development platform (together with the Wireless Starter Kit Mainboard) for the Silicon Labs Wireless Gecko modules. By carrying the BGM220SC12 module, the BRD4310A Radio Board is designed to operate in the 2400-2483.5 MHz with the maximum of 0 dBm output power.
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BRD4310A Reference Manual Radio Board Connector 2. Radio Board Connector 2.1 Introduction The board-to-board connector scheme allows access to all BGM220SC12 GPIO pins as well as the RESETn signal. For more information on the functions of the available pins, see the BGM220SC12 data sheet. 2.2 Radio Board Connector Pin Associations The figure below shows the mapping between the connector and the BGM220SC12 pins and their function on the Wireless Starter Kit Mainboard.
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BRD4310A Reference Manual Radio Board Block Summary 3. Radio Board Block Summary 3.1 Introduction This section introduces the blocks of the BRD4310A Radio Board. 3.2 Radio Board Block Diagram The block diagram of the BRD4310A Radio Board is shown in the figure below. I2C UFL Connector 2.4 GHz RF GPIO UART Debug EFR32 AEM xGM220S Module Packet Trace 2.4 GHz RF Chip Antenna 2.
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BRD4310A Reference Manual Radio Board Block Summary 3.3.4 Radio Board Connectors Two dual-row, 0.05” pitch polarized connectors make up the BRD4310A Radio Board interface to the Wireless Starter Kit Mainboard. For more information on the pin mapping between the BGM220SC12WGA2 and the Radio Board Connector, refer to section 2.2 Radio Board Connector Pin Associations. 3.3.
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BRD4310A Reference Manual Mechanical Details 4. Mechanical Details The BRD4310A Radio Board is illustrated in the figures below. UFL Connector LF XTAL xGM220S Module RF Output Selection 40 mm OTA Flash 22.7 mm 36.08 mm 41 mm Figure 4.1. BRD4310A Top View 5 mm 24 mm Board Identification PC03 to Exp Header Selection 27.3 mm PA04 to DBG_TDI Selection 28.6 mm PC01 to Exp Header Selection 20 mm Interface Connector Interface Connector Figure 4.2. BRD4310A Bottom View silabs.
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BRD4310A Reference Manual EMC Compliance 5. EMC Compliance 5.1 Introduction Compliance of the fundamental and harmonic levels of the BRD4310A Radio Board is tested against the following standards: • 2.4 GHz: • ETSI EN 300-328 • FCC 15.247 5.2 EMC Regulations for 2.4 GHz 5.2.1 ETSI EN 300-328 Emission Limits for the 2400-2483.5 MHz Band Based on ETSI EN 300-328, the allowed maximum fundamental power for the 2400-2483.5 MHz band is 20 dBm EIRP. For the unwanted emissions in the 1 GHz to 12.
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BRD4310A Reference Manual RF Performance 6. RF Performance 6.1 Conducted Power Measurements During measurements, the BRD4310A Radio Board was attached to a Wireless Starter Kit Mainboard which was supplied by USB. The voltage supply for the Radio Board was 3.3 V. 6.1.1 Conducted Power Measurements with Unmodulated Carrier The transceiver was operated in unmodulated carrier transmission mode. The output power of the radio was set to 0 dBm. The typical output spectrums are shown in the following figures.
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BRD4310A Reference Manual RF Performance 6.2 Radiated Power Measurements During measurements, the BRD4310A Radio Board was attached to a Wireless Starter Kit Mainboard which was supplied by USB. The voltage supply for the Radio Board was 3.3 V. The radiated power was measured in an antenna chamber by rotating the board 360 degrees with horizontal and vertical reference antenna polarizations in the XY, XZ, and YZ cuts. The measurement planes are illustrated in the figure below. X Z Y Figure 6.2.
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BRD4310A Reference Manual RF Performance Normalized Radiation Pattern [dB], BRD4310A, with WSTK, XY cut 315° 270° 0 -5 -10 -15 -20 -25 -30 -35 -40 -45 0° 45° 315° 90° 225° 270° 135° 180° 0°= X axis Normalized Radiation Pattern [dB], BRD4310A, with WSTK, XZ cut 0 -5 -10 -15 -20 -25 -30 -35 -40 -45 0° 45° Vertical 270° 135° 180° 0°= Z axis 315° 90° 225° Horizontal Normalized Radiation Pattern [dB], BRD4310A, with WSTK, YZ cut 0 -5 -10 -15 -20 -25 -30 -35 -40 -45 0° 45° 90° 225° H
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BRD4310A Reference Manual EMC Compliance Recommendations 7. EMC Compliance Recommendations 7.1 Recommendations for 2.4 GHz ETSI EN 300-328 Compliance As shown in section 6. RF Performance, the power of the fundamental frequency of the BRD4310A Wireless Gecko Radio Board with 0 dBm output is compliant with the 20 dBm limit of the ETSI EN 300-328 regulation in both the conducted and radiated measurements. The harmonic emissions are under the -30 dBm limit with large margin. 7.2 Recommendations for 2.
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BRD4310A Reference Manual Board Revision History 8. Board Revision History The board revision is laser engraved in the Board Info field on the bottom side of the PCB, as outlined in the figure below. The revision printed on the silkscreen is the PCB revision. PCB Revision Board Revision PCB4310A Rev. A01 BRD4310A Rev. A02 123456789 Figure 8.1. Revision Info Table 8.1. BRD4310A Radio Board Revision History Board Revision Description A02 Updated U1 OPN. A01 Updated X2 OPN.
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BRD4310A Reference Manual Errata 9. Errata There are no known errata at present. silabs.com | Building a more connected world. Rev. 0.
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BRD4310A Reference Manual Document Revision History 10. Document Revision History Revision 1.0 May, 2020 • Initial document release. silabs.com | Building a more connected world. Rev. 0.
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