RF-BM-BG22A
Shenzhen RF-star Technology Co., Ltd.
Page 1 of 19
1 Device Overview
1.1 Description
RF-BM-BG22A is an RF module based on EFR32BG22C224F512GM32-CR, one of Gecko family of SoCs from Silicon
Labs, with a 32-bit ARM
®
Cortex
®
-M33 core with 76.8 MHz maximum operating frequency. It integrates a 38.4 MHz
crystal, a matching, an antenna matching, a low-pass filter and a meander line inverted-F PCB antenna. It features low
power consumption, compact size, robust connection distance, and rigid reliability. It supports BLE stack v5.2 with
direction finding function. An integrated PA in the chip enables the module reach up to 6 dBm TX power. 1.27-mm pitch
stamp stick package for easy assembling and cost-effective PCB design.
1.2 Key Features
•
Low Power Wireless System-on-Chip
-
High Performance 32-bit 76.8 MHz ARM Cortex
®
-
M33 with DSP instruction and floating-point unit for
efficient signal processing
-
Up to 512 kB flash program memory
-
Up to 32 kB RAM data memory
-
2.4 GHz radio operation
•
Radio Performance
-
-98.9 dBm sensitivity @ 1 Mbit/s GFSK
-
-96.2 dBm sensitivity @ 2 Mbit/s GFSK
-
-106.7 dBm sensitivity @ 125 kbps GFSK
-
TX power up to 6 dBm
-
2.6 mA radio receive current
-
3.5 mA radio transmit current @ 0 dBm output
power
-
7.8 mA radio transmit current @ 6 dBm output
power
•
Low System Energy Consumption
-
3.6 mA RX current (1 Mbps GFSK)
-
4.1 mA TX current @ 0 dBm output power
-
8.2 mA TX current @ 6 dBm output power
-
27
μ
A/MHz in Active Mode (EM0) at 76.8 MHz
-
26
μ
A/MHz in Active Mode (EM0) at 38.4 MHz
-
1.40
μ
A EM2 DeepSleep current (32 kB RAM
retention and RTC running from LFXO)
-
1.75
μ
A EM2 DeepSleep current (32 kB RAM
retention and RTC running from Precision LFRCO)
-
1.05
μ
A EM3 DeepSleep current (8 kB RAM
retention and RTC running from ULFRCO)
•
Supported Modulation Format
-
2 (G)FSK with fully configurable shaping
-
OQPSK DSSS
-
(G)MSK
•
Protocol support
-
Bluetooth Low Energy (Bluetooth 5.2)
-
Direction finding using Angle-of-Arrival (AoA) and
Angle-of-Departure (AoD)
-
Proprietary
•
Wide Selection of MCU Peripherals
-
12-bit 1 Msps SAR Analog to Digital Converter
(ADC)
-
Up to 12 General Purpose I/O pins 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
Receiver / Transmitter (UART / SPI / SmartCard
(ISO 7816) / IrDA / I
2
S)
-
1
×
Enhanced Universal Asynchronous Receiver /
