Specifications

RF-BM-BG22A1
www.szrfstar.comV1.0 - Sep., 2020
1 Device Overview
1.1 Module Series
There are three modules of RF-BM-BG22Ax. All of them are based on Silicon Labs EFR32BG22 series. Because the
EFR32BG22 chips are pin-2-pin compatible in package, pins and peripherals, those three modules are pin-2-pin
compatible with each other as well.
Table 1. Module Specification of RF-BM-BG22Ax
Model Chip Model
Max. CPU
Speed
TX
Power
FLASH RAM Protocol
BG22A1 EFR32BG22C112F352GM32-C 38.4 MHz 0 dBm 352 KB 32 KB BT5.2
1.2 Description
RF-BM-BG22A1 is an RF module based on EFR32BG22C112F352GM32-C, one of Gecko family of SoCs from Silicon
Labs,with a 32-bit ARM
®
Cortex
®
-M33core with 38.4 MHz maximum operating frequency. It integrates a 38.4 MHz
crystal,a matching, an antenna matching, a low-pass filterand a meander line inverted-F PCB antenna. It supports
Bluetooth 5.2 low energy and Bluetooth 5.0 low energy and can be preprogrammed with a serial interface
communication protocol for simple programming. It also has a range of analog and digital interfaces such as PRS, ADC,
UART, SPI, I
2
C, PWM, ISO 7816, IrDA, I
2
S,EUART and PDM.It features low power consumption, compact size, robust
connection distance, and rigid reliability. The module reaches up to 0 dBm TX power. 1.27-mm pitch stamp stick
package for easy assembling and cost-effective PCB design.RF-BM-BG22A1 is pin-2-pin compatible with BG22A2 and
BG22A3.
1.3Key Features
• Protocol
- Bluetooth 5.1Low Energy
- Bluetooth 5.0 Low Energy
- Bluetooth Mesh Node
• Supported Modulation Format
- 2 (G)FSK with fully configurable shaping
• High Performance 32-bit 76.8 MHz ARM
Cortex®-M33 with DSP instruction and
floating-point unit for efficient signal processing
• Memory
- Flash:352KB
- RAM: 32 KB
• TX power: -28 dBm ~ 6 dBm
• Wide Peripherals
- 12-bit 1 Mbps SAR Analog to Digital Converter
(ADC)
- Up to 18GPIOs with output state retention and
asynchronous interrupts
- 8 Channel DMA Controller
- 12 Channel Peripheral Reflex System (PRS)
- 4 × 16-bit Timer / Counter with 3 Compare /
Capture / PWM channels
- 1 × 32-bit Timer / Counter with 3 Compare /
Capture / PWM channels
- 32-bit Real Time Counter
- 24-bit Low Energy Timer for waveform generation
- 1 × Watchdog Timer
- 2 × Universal Synchronous / Asynchronous
Shenzhen RF-star Technology Co., Ltd.
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