2. All of the modules are based on Silicon Labs EFR32BG22 SoC series. Because the EFR32BG22 series ICs are compatible in package, pins, and peripherals, those modules are pin-to-pin compatible with each other if there are the same version of RF-star hardware version. Shenzhen RF-star Technology Co., Ltd.
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4. The transmission range is the longest distance obtained by testing the module's maximum transmission power in an open and interference-free environment in sunny weather. 5. Click the picture to buy modules. Shenzhen RF-star Technology Co., Ltd. Page 2 of 31...
S, 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.
Low-Pass Antenna Filter Half-Hole Switch ANT Pin Reset Power Supply 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-BG22A1(I) Shenzhen RF-star Technology Co., Ltd. Page 4 of 31...
Antenna Type I: IPEX Connector IC Code Company Name EFR32BG22C112 RF-STAR Module Version The A HW Version Chipset Wireless Type Bluetooth Module EFR32BG22 Series Figure 2. Part Number Conventions of RF-BM-BG22A1(I) Shenzhen RF-star Technology Co., Ltd. Page 5 of 31...
Table 3. Recommended Operating Conditions of RF-BM-BG22A1(I) ..........12 Table 4. Handling Ratings of RF-BM-BG22A1(I) ..................12 Table 5. Current Consumption of RF-BM-BG22A1(I) ................12 Table 6. Temperature Table of Soldering and Reflow ................24 Shenzhen RF-star Technology Co., Ltd. Page 8 of 31...
RF-BM-BG22A1: 70 m (@ PCB antenna) Transmission Range in Open Air RF-BM-BG22A1I: 120 m (@ external PCB antenna) -40 ℃ ~ +85 ℃ Operating Temperature Storage Temperature -40 ℃ ~ +125 ℃ Shenzhen RF-star Technology Co., Ltd. Page 9 of 31...
FLUKE15B+ multimeter, load connects to DSA1030 spectrum analyzer, offset: 0.2, RBW = 100 KHz 1 A Stand-by Set Tx Power Actual Tx Power Actual Current Transmitting Current 0 dBm -0.5 dBm 4.0 mA Receiving Current 2.5 mA Shenzhen RF-star Technology Co., Ltd. Page 12 of 31...
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RF-BM-BG22A1(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 13 of 31...
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 14 of 31...
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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.
Figure 6. Schematic Diagram of RF-BM-BG22A1(I) 5.4 Antenna 5.4.1 Antenna Design Recommendation 1. The antenna installation structure has a great influence on the module performance. It is necessary to ensure the Shenzhen RF-star Technology Co., Ltd. Page 18 of 31...
, and R1 (0 Ω) is well welded. If you want to use the external antenna by the ANT pin, pls disconnect the R1. The location of R1 is shown in the figure below. Figure 8. Antenna Output Mode Change of RF-BM-BG22A1 Shenzhen RF-star Technology Co., Ltd. Page 19 of 31...
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 Figure 11. Reference Design of the External Antenna Traces Shenzhen RF-star Technology Co., Ltd. Page 20 of 31...
Figure 12. SI9000 Impedance Calculation Diagram 5.4.4 IPEX Connector Specification RF-BM-BG22A1I module is integrated the IPEX version 1 antenna seat, the specification of the antenna seat is as follows: Figure 13. Specification of Antenna Seat Shenzhen RF-star Technology Co., Ltd. Page 21 of 31...
6. Assuming that there are devices with large electromagnetic interference around the module, which will greatly affect the module performance. It is recommended to stay away from the module according to the strength of the interference. If circumstances permit, appropriate isolation and shielding can be done. Shenzhen RF-star Technology Co., Ltd. Page 22 of 31...
1. There are co-channel signal interferences nearby. It is recommended to be away from the interference sources or modify the frequency and channel to avoid interferences. 2. The unsatisfactory power supply may also cause garbled. It is necessary to ensure the power supply's reliability. Shenzhen RF-star Technology Co., Ltd. Page 23 of 31...
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.
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 26 of 31...
(2) this device must accept any interference received, including interference that may cause undesired operation. FCC ID: 2ABN2-BG22A1 Figure 18. FCC certificate of RF-BM-BG22A1 6.2 CE Figure 19. CE certificate of RF-BM-BG22A1 Shenzhen RF-star Technology Co., Ltd. Page 28 of 31...
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 30 of 31...
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