What is it?

RF-BM-BG22A1(I) is an RF module based on EFR32BG22C112F352GM32-C, one of the Gecko family of SoCs from Silicon Labs, with a 32-bit ARM® Cortex®-M33 core with 38.4 MHz maximum operating frequency. It integrates a 38.4MHz crystal, a matching, an antenna matching, a low-pass filter, and the antenna option (the one is a meander line inverted-F PCB antenna and a half-hole ANT pin, and the other is the IPEX connector and a half-hole ANT pin). As for the hardware, it supports Bluetooth 5.2 Low Energy and also has a range of analog and digital interfaces such as PRS, ADC, UART, SPI, I2C, PWM, ISO 7816, IrDA, I2S, EUART and PDM. It features low power consumption, compact size, robust connection distance, and rigid reliability. 1.27-mm pitch stamp stick package for easy assembling and cost?effective PCB design. As for the firmware, it can be preprogrammed with an RF-star BLE5.0 serial communication protocol for simple programming.

Parameters

RF-BM-BG22A1 SoC: EFR32BG22C112F352GM32-C

Wireless SoC: 32-bit ARM® Cortex®-M33 processor

TX power: Up to +0 dBm

Sensitivity:

• -98.9 dBm sensitivity @ 1 Mbit/s GFSK
• -96.2 dBm sensitivity @ 2 Mbit/s GFSK

Features

• Bluetooth 5.2 Low Energy

Operating Range

• Supply voltage range DC-DC mode: 2.2 V ~ 3.8 V, Bypass mode: 1.8 V ~ 3.8 V
• Working temperature range: -40 °C ~ +85 °C

Rich Peripherals

• 16-bit ADC
• 18 GPIOs
• DMA
• PDM
• PRS
• EUART
• I²C
• RTC
• Watchdog
• UART/SPI/SmartCard (ISO 7816)/IrDA/I2S

Applications

• Asset tags and beacons
• Consumer electronics remote controls
• Portable medical
• Sports, fitness and wellness devices
• Connected home
• Building automation and security

Useful Links

• RF-BM-BG22A1 EFR32BG22C112 datasheet

Related Resources:

• RFstar BG22A1 Bluetooth Module Empowers BMS Industry