SilabsEFR32MG21BGecko多协议无线SoC开发方案

Silabs公司的EFR32MG21B是Gecko多协议无线SoC系列产品,组合了80 MHz ARM Cortex-M33,高性能2.4GHz无线电,而集成的安全库提供高度安全能效的无线系统级芯片(SoC)用于物联网(IoT)的连接应用.器件集成了32位ARM® Cortex®-M33核,最大工作频率80MHz,有多达1024KB闪存和96KB RAM,12路外设反射系统使得MCU外设能自主互动,集成了2.4GHz 发送功率高达20dBm的功率放大器(PA),4x4 QFN封装中有强健的外设集合和多达20个GPIO.器件具有高性能接收器: -104.5 dBm灵感度@ 250 kbps O-QPSK DSSS,-97.5 dBm灵敏度@ 1 Mbit/s GFSK,-94.4 dBm灵敏度@ 2 Mbit/s GFSK和-104.9 dBm灵感度@ 125 kbps GFSK.器件支部的调制格式有GFSK和OQPSK.支持的协议包括蓝牙低功耗(蓝牙5),ZigBee和Thread.工作电压1.71V-3.8V,工作温度-40C 到125C.主要应用包括IoT多协议设备,照明,家庭连接,网关和数字助理,建筑物自动化和安全.本文介绍了EFR32MG21B主要特性,框图和详细框图以及EFR32xG21 2.4 GHz 20 dBm无线入门板包括BRD4180B无线电板和无线STK主板主要特性与电路图.

EFR32MG21B SoCs are ideal for enabling energy-friendly multiprotocol,multiband networking for IoT devices.

The single-die solution combines an 80 MHz ARM Cortex-M33, a high performance 2.4

GHz radio, and an integrated Secure Vault to provide a highly secure, energy efficientwireless SoC for IoT connected applications.

EFR32MG21B主要特性:

• 32-bit ARM® Cortex®-M33 core with 80MHz maximum operating frequency

• Up to 1024 kB of flash and 96 kB of RAM

• 12-channel Peripheral Reflex Systemenabling autonomous interaction of MCU

peripherals

• Integrated PA with up to 20 dBm (2.4GHz) TX power

• Robust peripheral set and up to 20 GPIO in a 4x4 QFN packageEFR32MG21B applications include:

• IoT Multi-Protocol Devices

• Lighting

• Connected Home

• Gateways and Digital Assistants

• Building Automation and Security

图1.EFR32MG21B框图

EFR32MG21B主要特性:

• Low Power Wireless System...