Instruction Manual

3. Radio Board Block Summary
3.1 Introduction
This section introduces the blocks of the BRD4186C Radio Board.
3.2 Radio Board Block Diagram
The block diagram of the BRD4186C Radio Board is shown in the figure below.
Inverted-F
PCB
Antenna
2.4 GHz RF
UFL
Connector
LF
Crystal
32.768k
HF
Crystal
38.4M
Radio
Board
Connectors
I2C
24AA024
Serial
EEPROM
Matching
Network &
Output
Selection
GPIO
UART
Debug
Packet Trace
AEM
I2C
SPI
2.4 GHz RF
EFR32
EFR32
Wireless SoC
2.4 GHz RF
8 Mbit
MX25R
Serial Flash
SPI
Figure 3.1. BRD4186C Block Diagram
3.3 Radio Board Block Description
3.3.1 Wireless MCU
The BRD4186C Radio Board incorporates an EFR32MG24B210F1536IM48 Wireless System-on-Chip featuring 32-bit Cortex
®
-M33
core, 1536 kB of flash memory, 256 kB of RAM, and a 2.4 GHz band transceiver with output power up to 10 dBm. For additional infor-
mation on the EFR32MG24B210F1536IM48, refer to the EFR32MG24 data sheet.
3.3.2 LF Crystal Oscillator (LFXO)
The BRD4186C Radio Board has a 32.768 kHz crystal mounted. For details regarding the crystal configuration, refer to application note
AN0016.2: Oscillator Design Considerations.
3.3.3 HF Crystal Oscillator (HFXO)
The BRD4186C Radio Board has a 39 MHz crystal mounted. For details regarding the crystal configuration, refer to application note
AN0016.2: Oscillator Design Considerations.
BRD4186C Reference Manual
Radio Board Block Summary
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