RF-Star RF-BM-BG22A Manual

RF-Star RF-BM-BG22A Manual

Bluetooth 5.2 low energy module

Advertisement

Quick Links

RF-BM-BG22A
Bluetooth 5.2 Low Energy Module
Version 1.0a
Shenzhen RF-star Technology Co., Ltd.
th
May 14
, 2020

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the RF-BM-BG22A and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Summary of Contents for RF-Star RF-BM-BG22A

  • Page 1 RF-BM-BG22A Bluetooth 5.2 Low Energy Module Version 1.0a Shenzhen RF-star Technology Co., Ltd. May 14 , 2020...
  • Page 2: Device Overview

    RF-BM-BG22A www.szrfstar.com V1.0a - May, 2020 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.
  • Page 3: Applications

    38.4 MHz Antenna Antenna Matching GPIOs EFR32 Matching Debug BG22 Low-Pass Antenna Filter Half-Hole Switch Interface Power Supply Reset 1.71 V ~ 3.8 V Figure 1. Functional Block Diagram of RF-BM-BG22A Shenzhen RF-star Technology Co., Ltd. Page 2 of 19...
  • Page 4: Part Number Conventions

    RF-BM-BG22A www.szrfstar.com V1.0a - May, 2020 1.5 Part Number Conventions The part numbers are of the form of RF-BM-BG22A where the fields are defined as follows: BG22 Company Name Module Version The first version RF-star Wireless Type Chipset Bluetooth Module Silicon Labs EFR32BG22 Series Figure 2.
  • Page 5: Table Of Contents

    4.5.2 Vulnerable Module ..........................15 4.5.3 High Bit Error Rate ..........................15 4.6 Electrostatics Discharge Warnings ......................15 4.7 Soldering and Reflow Condition ......................... 15 4.8 Optional Packaging ............................17 5 Revision History ................................18 Shenzhen RF-star Technology Co., Ltd. Page 4 of 19...
  • Page 6: Table Of Figures

    V1.0a - May, 2020 6 Contact Us ..................................19 Table of Figures Figure 1. Functional Block Diagram of RF-BM-BG22A ................2 Figure 2. Part Number Conventions of RF-BM-BG22A ................3 Figure 3. Pin Diagram of RF-BM-BG22A ......................7 Figure 4. Photos of RF-BM-BG22A ........................11 Figure 5.
  • Page 7: Module Configuration And Functions

    RF-BM-BG22A www.szrfstar.com V1.0a - May, 2020 2 Module Configuration and Functions 2.1 Module Parameters Table 1. Parameters of RF-BM-BG22A Chipset EFR32BG22C224F512GM32-CR Supply Power Voltage 1.71 V ~ 3.8 V, recommended to 3.3 V Frequency 2402 MHz ~ 2480 MHz Transmit Power -20.0 dBm ~ +6 dBm (typical: 0 dBm)
  • Page 8: Module Pin Diagram

    RF-BM-BG22A www.szrfstar.com V1.0a - May, 2020 2.2 Module Pin Diagram Figure 3. Pin Diagram of RF-BM-BG22A 2.3 Pin Functions Table 2. Pin Functions of RF-BM-BG22A Name Chip Pin Pin Type Description EXT_ANT External antenna pin. PB02 PB02 PB01 PB01 GPIO...
  • Page 9 Ground 1.71 V ~ 3.8 V PD01 PD01 GPIO GPIO PD00 PD00 GPIO PC00 PC00 PC01 PC01 GPIO GPIO PC02 PC02 PC03 PC03 GPIO GPIO PC04 PC04 PC05 PC05 GPIO Ground Shenzhen RF-star Technology Co., Ltd. Page 8 of 19...
  • Page 10: Specifications

    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 3. Recommended Operating Conditions of RF-BM-BG22A Items Condition Typ.
  • Page 11 RF-BM-BG22A www.szrfstar.com V1.0a - May, 2020 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 10 of 19...
  • Page 12: Application, Implementation, And Layout

    RF-BM-BG22A www.szrfstar.com V1.0a - May, 2020 4 Application, Implementation, and Layout 4.1 Module Photos Figure 4. Photos of RF-BM-BG22A 4.2 Recommended PCB Footprint Figure 5. Recommended PCB Footprint of RF-BM-BG22A (mm) Shenzhen RF-star Technology Co., Ltd. Page 11 of 19...
  • Page 13: Schematic Diagram And Reference Design

    V1.0a - May, 2020 4.3 Schematic Diagram and Reference Design The schematic diagram is as follows: Figure 6. Schematic Diagram of RF-BM-BG22A The reference design is as follows: Figure 7. Reference Design of RF-BM-BG22A Shenzhen RF-star Technology Co., Ltd.
  • Page 14: Basic Operation Of Hardware Design

    10. The antenna must not be installed inside the metal case, which will cause the transmission distance to be greatly weakened. Shenzhen RF-star Technology Co., Ltd. Page 13 of 19...
  • Page 15: Trouble Shooting

    (3) It is the best to hollow out the antenna position in the following figure so as to ensure that S11 of the module is minimally affected. Figure 8. Recommendation of Antenna Layout Note: The hollow-out position (yellow part) is based on the antenna used, and RF-star recommend the distance is no less than 10 mm. 4.5 Trouble Shooting 4.5.1 Unsatisfactory Transmission Distance...
  • Page 16: Vulnerable Module

    3. If the extension wire or feeder wire is of poor quality or too long, the bit error rate will be high. 4.6 Electrostatics Discharge Warnings The module will be damaged for the discharge of static. RF-star suggest that all modules should follow the 3 precautions below: 1.
  • Page 17: Figure 9. Recommended Reflow For Lead Free Solder

    Time from 25 ℃ to Peak Temperature (t Max. 6 minutes Max. 8 minutes 20±10 s 20±10 s Time of Soldering Zone (t Figure 9. Recommended Reflow for Lead Free Solder Shenzhen RF-star Technology Co., Ltd. Page 16 of 19...
  • Page 18: Optional Packaging

    RF-BM-BG22A www.szrfstar.com V1.0a - May, 2020 4.8 Optional Packaging Figure 10. Optional Packaging Mode Note: Default tray packaging. Shenzhen RF-star Technology Co., Ltd. Page 17 of 19...
  • Page 19: 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.szrfstar.com. Shenzhen RF-star Technology Co., Ltd. Page 18 of 19...
  • Page 20: Contact Us

    RF-BM-BG22A www.szrfstar.com V1.0a - May, 2020 6 Contact Us SHENZHEN RF-STAR TECHNOLOGY CO., LTD. Shenzhen HQ: Add.: Room 601, Block C, Skyworth Building, High-tech Park, Nanshan District, Shenzhen, Guangdong, China Tel.: 86-755-3695 3756 Chengdu Branch: Add.: No. B3-03, Building No.1, Incubation Park, High-Tech District, Chengdu, Sichuan, China, 610000 Tel.: 86-28-6577 5970...

Table of Contents