E78-M Series, LoRa SoC RF Module E78-400M22S1C
E78-400M22S1C
[IC]：ASR6601
[Frequency]：410~490MHz
[Power]：21dBm
[Distance]：5.5km
[Size]：26*16*2.8mm
[Introduction]：E78 series are RF transceiver module of various frequency bands designed and manufactured by Chengdu Ebyte, with long communication distance and extremely low power mode current consumption. It is a small-sized SMD type(pin pitch 1. lmm).
| Model | Interface | IC | Frequency Hz | Power dBm | Distance km | Air Rate(bps) | Package | Size (mm) | Feature | Manual |
| E78-900M22S1A | SoC | ASR6505 | 868M 915M | 22 | 5,5 | - | SMD | 26* 16*2.8 | LoRa Spread spectrum | ✔ |
| E78-400M22S1C | SoC | ASR6601 | 470M 433M | 21 | 5,5 | - | SMD | 26*16*2.8 | LoRa Spread Spectrum | ✔ |
| Parameter | Performance |
Remark |
| Frequency |
410~490 MHz |
- |
| TX Power | 21 dBm |
- |
| Reference distance | 5.5 Km |
Lora 1kbps |
| Parameter | Performance |
Remark |
| Size |
26*16*2.8 mm |
- |
| Antenna | IPEX/Stamp hole |
50 ohm impedance |
| IC |
ASR6601SE |
- |
| Package | SMD |
- |
| Net Weight |
1.9g |
- |
| Parameter | Min. | Typ. | Max. | Unit |
| TX current |
105 | 108 | 110 | mA |
| RC current |
8.5 | 8.7 | 11 | mA |
| Sleep current |
1.6 | 1.8 | 1.8 | uA |
| TX power |
20.6 | 20.8 | 21 | dBm |
| Receiving sensitivity |
- | -148 | - | dBm |
| TCXO crystal |
- | 32 | - | MHz |
| TCXO crystal voltage |
1.8 |
1.8 | 3.3 | V |
| Recommended frequency |
410 | 433/470/490 |
490 | MHz |
| Power supply |
1.7 | 3.3 | 3.7 | V |
| Communication level |
1.7 | 3.3 | 3.7 | V |
| Working Temperature |
-40 | - | +85 | ℃ |
| Humidity |
10％ | - | 90％ |
- |
| Storage Temperature |
-40 | - | +125 | ℃ |
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