E51-900NW16S(BR) 868/915Mhz EFR32FG25 Chips Industrial IoT Wireless Modules Support Wi-SUN/FAN1.1/OFDM
[Solution de puce]：EFR32FG25
[Fréquence]： 860-925 MHz
[Type d’interface]：UART
[Distance de communication]：2,5 km
[Dimensions]：20 x 20 mm
[Poids]：2 ± 0,1 g
[Introduction]：Le module sans fil IoT de la série E51 est un module Wi-Sun assurant une transmission longue distance et basse consommation. Il utilise la puce EFR32FG25 et prend en charge la technologie de modulation OFDM (Orthogonal Frequency Division Multiplexing) introduite dans le réseau Wi-SUN (FAN). Son format compact, ses ressources d'interface riches et sa prise en charge du développement secondaire utilisateur le rendent largement applicable au secteur de l'IoT.
Magasin officiel| RF parameters | Parameter value | Remark |
| Operating frequency band | 470-510 MHz | Corresponding models: E51-470NW16S(NR), E51-470NW16S(BR) |
| 860-925 MHz | The corresponding models are: E51-900NW16S(NR), E51-900NW16S(BR), and support 868/915MHz European and American frequency bands. | |
| Transmit power | 16 dBm | Software adjustable, users need to develop and set it up by themselves |
| Receive sensitivity (GFSK) | -117.7 dBm | 10 kbps 2GFSK signal，Δf = ± 25 kHz，BER<0.1%2 |
| Receive sensitivity (OFDM) | -116.8 dBm | 10% packet error rate (PER) without interference, |
| OFDM Option4，MCS0，header MCS0，with PL = 20 octets | ||
| Measured distance | 2.5 km | Clear and open air, antenna gain 3.5dBi, antenna height 2 meters, air data rate 10kbps |
| Electrical parameters | Minimum | Typical values | Maximum | unit | Remark |
| Power supply voltage | 3 | 5 | 5.5 | In | ≥5.0V can guarantee output power, exceeding 5.5V may damage the module |
| Communication level | - | 3.3 | - | In | When using 5.0V TTL, it is recommended to add level conversion |
| Emission current | 73 | - | 81 | m.a. | Instantaneous power consumption |
| Receive current | 7.5 | - | 11 | m.a. | — |
| Operating temperature | -40 | - | 85 | ℃ | — |
| Operating humidity | 10 | - | 90 | % | — |
| Storage temperature | -50 | - | 125 | ℃ | — |
| Hardware Parameters | Parameter value | Remark |
| IC full name | EFR32FG25A121F1152IM56-B | Support OFDM, can be replaced with other models in the same series, welcome to consult |
| kernel | ARM Cortex®-M33 | Main frequency 97.5MHz, high-performance 32-bit ARM processor with DSP instructions and floating-point unit |
| FLASH | 1152 KB | Can be replaced with other models in the same series, supporting up to 1152 KB, welcome to consult |
| RAM | 256 KB | Can be replaced with other models in the same series, supporting up to 256 KB, welcome to consult |
| Crystal oscillator frequency | 39MHz/32.768KHz | The module is connected |
| Size | 20 * 20 mm | — |
| Antenna type | IPEX/Stamp Hole | Equivalent impedance is about 50Ω |
| Communication interface | UART | — |
| Packaging | Patch stamp hole | Pin spacing 1.27mm |
| weight | 2.07±0.1g | — |