RF-Star RF-BM-BG22A3 Manual

RF-Star RF-BM-BG22A3 Manual

Bluetooth 5.2 low energy module
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RF-BM-BG22A3(I) EFR32BG22C224
Bluetooth 5.2 Low Energy Module
Version 1.3
Shenzhen RF-star Technology Co., Ltd.
th
August 12
, 2022

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Summary of Contents for RF-Star RF-BM-BG22A3

  • Page 1 RF-BM-BG22A3(I) EFR32BG22C224 Bluetooth 5.2 Low Energy Module Version 1.3 Shenzhen RF-star Technology Co., Ltd. August 12 , 2022...
  • Page 2: Device Overview

    Note: RF-BM-BG22A1 and RF-BM-BG22A1I do not support AoA/AoD and LE Long Range (125 Kbps and 500 Kbps) PHYs. 1.2 Description RF-BM-BG22A3(I) is an RF module based on EFR32BG22C224F512GM32-C, one of the Gecko family of SoCs from Silicon Labs, with a 32-bit ARM ®...
  • Page 3: Applications

    × • Transmission range: Compare/Capture/PWM channels 32-bit Timer/Counter with - RF-BM-BG22A3: 110 m (@ PCB antenna, 1 × Compare/Capture/PWM channels Mbps/s); 135 m (@ PCB antenna, 125 kbps/s) - 32-bit RTC - RF-BM-BG22A3I: 155 m (@ external PCB antenna, - 24-bit Low Energy Timer for waveform generation 1 Mbps/s);...
  • Page 4: Functional Block Diagram

    DC-DC mode: 2.2 V to 3.8 V Bypass mode: 1.8 V to 3.8 V Figure 1. Functional Block Diagram of RF-BM-BG22A3(I) 1.6 Part Number Conventions The part numbers are of the form of RF-BM-BG22A3(I) where the fields are defined as follows: RF BM BG22 Antenna Type...
  • Page 5: Table Of Contents

    5.4.3 External Antenna Design Recommendation of the Half-Hole ANT Pin ......17 5.4.4 IPEX Connector Specification ......................19 5.5 Basic Operation of Hardware Design ...................... 20 5.6 Trouble Shooting .............................. 20 Shenzhen RF-star Technology Co., Ltd. Page 4 of 26...
  • Page 6: Table Of Figures

    Figure 3. Pin Diagram of RF-BM-BG22A3(I) ....................8 Figure 4. Photos of RF-BM-BG22A3(I) ......................14 Figure 5. Recommended PCB Footprint of RF-BM-BG22A3(I) (mm) ..........15 Figure 6. Schematic Diagram of RF-BM-BG22A3(I) ................. 15 Figure 7. Recommendation of Antenna Layout ................... 16 Figure 8.
  • Page 7 V1.3 - Aug., 2022 Table 3. Pin Functions of RF-BM-BG22A3(I) ....................8 Table 4. Recommended Operating Conditions of RF-BM-BG22A3(I) ..........10 Table 5. Handling Ratings of RF-BM-BG22A3(I) ..................10 Table 6. Current Consumption of RF-BM-BG22A3(I) ................10 Table 7. Temperature Table of Soldering and Reflow ................22 Shenzhen RF-star Technology Co., Ltd.
  • Page 8: Module Configuration And Functions

    RF-BM-BG22A1: PCB antenna, half-hole ANT pin Type of Antenna RF-BM-BG22A1I: IPEX connector, half-hole ANT pin RF-BM-BG22A3: 110 m (@ PCB antenna, 1 Mbps/s); 135 m (@ PCB antenna, 125 kbps/s) Transmission Range in Open Air RF-BM-BG22A3I: 155 m (@ external PCB antenna, 1 Mbps/s); 210 m (@ external PCB antenna, 125 kbps/s) -40 ℃...
  • Page 9: Module Pin Diagram

    RF-BM-BG22A3(I) www.szrfstar.com V1.3 - Aug., 2022 2.2 Module Pin Diagram RF-BM-BG22A1 RF-BM-BG22A1I Figure 3. Pin Diagram of RF-BM-BG22A3(I) 2.3 Pin Functions Table 3. Pin Functions of RF-BM-BG22A3(I) Name Chip Pin Pin Type Description EXT_ANT External antenna pin. GPIO PB02 PB02...
  • Page 10 2.2 V ~ 3.8 V, recommended to 3.3 V GPIO PD01 PD01 PD00 PD00 GPIO PC00 PC00 GPIO PC01 PC01 GPIO PC02 PC02 GPIO GPIO PC03 PC03 PC04 PC04 GPIO GPIO PC05 PC05 Ground Shenzhen RF-star Technology Co., Ltd. Page 9 of 26...
  • Page 11: Specifications

    The functional operation does not guarantee performance beyond the limits of the conditional parameter values in the table below. Long-term work beyond this limit will affect the reliability of the module more or less. Table 4. Recommended Operating Conditions of RF-BM-BG22A3(I) Items Condition Typ.
  • Page 12 RF-BM-BG22A3(I) www.szrfstar.com V1.3 - Aug., 2022 Note: The test method is closely related to the current. For example, the output load antenna is different from the standard 50 Ω test data. Shenzhen RF-star Technology Co., Ltd. Page 11 of 26...
  • Page 13: Setting Of Frequency Offset Register

    Oen the project, find the Project Explorer window, and open the project folder, as shown in the following figure. Then choose the config folder, find the sl_device_init_hfxo_config.h file, and double-click to open it, as shown in the figure below. Shenzhen RF-star Technology Co., Ltd. Page 12 of 26...
  • Page 14 Find SL_DEVICE_INIT_HFXO_CTUNE, the official default value of SiliconLabs is 140, RF-star changes it to 72 according to the requirements of the development board hardware RF part. Remark: This is the value for RF-star’s standard EFR32BG22 series modules, the value of the other customized products needs to be confirmed.
  • Page 15: Application, Implementation, And Layout

    RF-BM-BG22A3(I) www.szrfstar.com V1.3 - Aug., 2022 5 Application, Implementation, and Layout 5.1 Module Photos RF-BM-BG22A3 RF-BM-BG22A3I Figure 4. Photos of RF-BM-BG22A3(I) 5.2 Recommended PCB Footprint RF-BM-BG22A1 Shenzhen RF-star Technology Co., Ltd. Page 14 of 26...
  • Page 16: Schematic Diagram

    RF-BM-BG22A3(I) www.szrfstar.com V1.3 - Aug., 2022 RF-BM-BG22A1I Figure 5. Recommended PCB Footprint of RF-BM-BG22A3(I) (mm) 5.3 Schematic Diagram Figure 6. Schematic Diagram of RF-BM-BG22A3(I) Shenzhen RF-star Technology Co., Ltd. Page 15 of 26...
  • Page 17: Antenna

    Note: The hollow-out position is based on the antenna used. 5.4.2 Antenna Output Mode Modification 1. RF-BM-BG22A3 has two antenna output modes. The one is an onboard PCB antenna and the other is a stamp half- hole output (ANT pin, see pin function table for details).
  • Page 18: External Antenna Design Recommendation Of The Half-Hole Ant Pin

    The traces are as short as possible, and 135° or arc traces are used as much as possible. No vias are used to change layers. More GND vias are placed around the RF traces. Figure 10. Reference Design of the External Antenna Shenzhen RF-star Technology Co., Ltd. Page 17 of 26...
  • Page 19: Figure 11. Reference Design Of The External Antenna Traces

    Example: FR4 is a double-layer board with a thickness of 1.0 mm. Through calculation, the width of the trace is 0.8254 mm, and the spacing between traces and copper is 0.22 mm. Figure 12. SI9000 Impedance Calculation Diagram Shenzhen RF-star Technology Co., Ltd. Page 18 of 26...
  • Page 20: Ipex Connector Specification

    RF-BM-BG22A3I module is integrated the IPEX version 1 antenna seat, the specification of the antenna seat is as follows: Figure 13. Specification of Antenna Seat The specification of the IPEX wire end is as follows: Figure 14. Specification of IPEX Wire Shenzhen RF-star Technology Co., Ltd. Page 19 of 26...
  • Page 21: Basic Operation Of Hardware Design

    2. Seawater has a strong ability to absorb radio waves, so the test results by the seaside are poor. 3. The signal attenuation will be very obvious if there is metal near the antenna or if the module is placed inside the Shenzhen RF-star Technology Co., Ltd. Page 20 of 26...
  • Page 22: Vulnerable Module

    3. If the extension wire or feeder wire is of poor quality or too long, the bit error rate will be high. 5.7 Electrostatics Discharge Warnings The module will be damaged by the discharge of static. RF-star suggests that all modules should follow the 3 precautions below: 1.
  • Page 23: Figure 15. Recommended Reflow For Lead-Free Solder

    Max. 6 ℃/s Time from 25 ℃ to Peak Temperature (t Max. 6 minutes Max. 8 minutes Time of Soldering Zone (t 20±10 s 20±10 s Figure 15. Recommended Reflow for Lead-Free Solder Shenzhen RF-star Technology Co., Ltd. Page 22 of 26...
  • Page 24: Optional Package Specification

    The default package method is . If you need the modules to be shipped by tape & reel, pls contact us in advance. Figure 16. Default Package by Tray Shenzhen RF-star Technology Co., Ltd. Page 23 of 26...
  • Page 25: Figure 17. Package By Tape & Reel

    RF-BM-BG22A3(I) www.szrfstar.com V1.3 - Aug., 2022 Figure 17. Package by Tape & Reel Shenzhen RF-star Technology Co., Ltd. Page 24 of 26...
  • Page 26: Revision History

    1. The document will be optimized and updated from time to time. Before using this document, please make sure it is the latest version. 2. To obtain the latest document, please download it from the official website: www.rfstariot.com and www.szrfstar.com. Shenzhen RF-star Technology Co., Ltd. Page 25 of 26...
  • Page 27: Contact Us

    RF-BM-BG22A3(I) www.szrfstar.com V1.3 - Aug., 2022 7 Contact Us SHENZHEN RF-STAR TECHNOLOGY CO., LTD. Shenzhen HQ: Add.: C601, Skyworth Building, High-tech Park, Nanshan District, Shenzhen, Guangdong, China, 518057 Tel.: 86-755-3695 3756 Chengdu Branch: Add.: N2-1604, Global Center, North No. 1700, Tianfu Avenue, Hi-Tech District, Chengdu, Sichuan, China, 610095 Tel.: 86-28-6577 5970...

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