[IC]：SI4438
[Frequency]：425～525MHz
[Power]：30dBm
[Distance]：5.6km
[Size]：38.5*24mm
[Introduction]：E30-400M30S is a hardware module (SPI) based on the SI4438 RF chip imported from Silicon Labs. It is a half-duplex, SMD integrated transceiver with transparent transmission available.
| Main parameter | Performance | Remark |
| Reference distance | 5.6km | Test condition：clear and open area, antenna gain: 5dBi，antenna height: 2.5m，air data rate: 1kbps |
| Modulation | GFSK | - |
| Communication Interface | SPI | Max. rate 10Mbps |
| Package | SMD | - |
| Interface method | Stamp Hole | - |
| Size | 38.5*24mm | - |
| Antenna | IPEX/STAMP | 50 ohm impedance |
| Main parameter | Min. | Typ. | Max. | Unit | Remark |
| Operating voltage | 3.3 | 5.0 | 5.5 | V | ≥5.0V ensures output power |
| Operating frequency | 425 | - | 525 | MHz | - |
| Communication level | - | 3.3 | - | V | For 5V TTL, it may be at risk of burning down |
| TX current | 550 | 650 | 700 | mA | Instant power consumption |
| RX current | - | 22 | - | mA | - |
| Sleep current | - | 2 | - | μA | - |
| Operating temperature | -40 | - | +85 | ℃ | Industrial grade |
| Max TX power | 29 | 30 | 30.5 | dBm | - |
| Receiving sensitivity | -120 | -121 | -122 | dBm | Air data rate is1kbps |
| Pin No. | Item | Direction | Description |
| 1 | GND | - | Ground wire, connected to the power reference ground |
| 2 | GND | - | Ground wire, connected to the power reference ground |
| 3 | GND | - | Ground wire, connected to the power reference ground |
| 4 | GND | - | Ground wire, connected to the power reference ground |
| 5 | GND | - | Ground wire, connected to the power reference ground |
| 6 | IO2 | Output | Configurable universal GPIO port (see SI4438manual for details) |
| 7 | IO3 | Output | Configurable universal GPIO port (see SI4438manual for details) |
| 8 | IO0 | Output | Configurable universal GPIO port (see SI4438manual for details) |
| 9 | VCC | - | Power supply, 3.3~5.5V, 5V is recommended (It is also recommended to add external ceramic filter capacitor) |
| 10 | VCC | - | Power supply, 3.3~5.5V, 5V is recommended (It is also recommended to add external ceramic filter capacitor) |
| 11 | GND | - | Ground wire, connected to the power reference ground |
| 12 | GND | - | Ground wire, connected to the power reference ground |
| 13 | IO1 | Input | Configurable universal GPIO port (see SI4438manual for details) |
| 14 | IRQ | Input | SPI interrupt request |
| 15 | SDN | - | Shutdown Input Pin. It is low level when working(See SI4438 manual for more details) |
| 16 | MISO | Input | SPI master output slave input |
| 17 | MOSI | Input | SPI master input slave output |
| 18 | SCK | Input | Serial Clock Input |
| 19 | NSEL | Input | SPI Chip select for starting SPI communication |
| 20 | GND | - | Ground wire, connected to the power reference ground |
| 21 | ANT | - | Antena |
| 22 | GND | - | Ground wire, connected to the power reference ground |
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| Model | Interface | IC | Frequency Hz | Power dBm | Distance km | Air data rate | Package | Size (mm) | Feature | Manual | Sample |
|---|---|---|---|---|---|---|---|---|---|---|---|
| E30-400M30S（4463） | SPI | SI4463 | 433M 470M | 30 | 5.6 | 1k~25k | SMD | 38.5*24 | Long distance communication | ||
| E30-400M30S（4438） | SPI | SI4438 | 433M 470M | 30 | 5.6 | 1k~25k | SMD | 38.5*24 | Long communicaiton distance | ||
| E30-900MBL-01 | USB | - | - | - | - | - | - | 53*27mm | E30 series module test board | ||
| E30-400MBL-01 | USB | - | - | - | - | - | - | 53*27mm | E30 series module test board | ||
| E30-400M20S（4463） | SPI | SI4463 | 433M 470M | 20 | 2.5 | 1k~25k | SMD | 20*14 | Long transmission distance,Strong penetration diffraction | ||
| E30-900M30S | SPI | SI4463 | 868M 915M | 30 | 5.6 | 1k~25k | SMD | 38.5*24 | Long transmission distance,Strong penetration diffraction | ||
| E30-900M20S | SPI | SI4463 | 868M 915M | 20 | 2.5 | 1k~25k | SMD | 20*14 | Strong penetration diffraction,Strong penetration diffraction | ||
| E30-400M20S（4438） | SPI | SI4438 | 433M 470M | 20 | 2.5 | 1k~25k | SMD | 20*14 | Long transmission distance,Strong penetration diffraction | ||
| E30-433T20S3 | UART | SI4438 | 433M | 20 | 2.5 | 1k~25k | SMD | 16*26 | FEC , WOR | ||
| E30-DTU(433M37) | 232/485 | SI4438 | 433M | 37 | 15 | 1k~25k | Screwing/DB9 | 124*105*25 | FEC , WOR | ||
| E30-DTU-490M20 | 232/485 | SI4438 | 490M | 20 | 2.5 | 1k~25k | Screwing/DB9 | 82*62*25 | FEC , WOR | ||
| E30-170T20D | UART | SI4463 | 170M | 20 | 2.0 | 1k~25k | DIP | 21*36 | Diffraction , FEC | ||
| E30-170T27D | UART | SI4463 | 170M | 27 | 5.0 | 1k~25k | DIP | 24*43 | Diffraction , FEC | ||
| E30-780T20S | UART | SI4463 | 780M | 20 | 2.5 | 1k~25k | SMD | 17*30 | FEC , WOR | ||
| E30-868T20S | UART | SI4463 | 868M | 20 | 2.5 | 1k~25k | SMD | 17*30 | FEC , WOR | ||
| E30-868T20D | UART | SI4463 | 868M | 20 | 2.5 | 1k~25k | DIP | 21*36 | FEC , WOR | ||
| E30-915T20D | UART | SI4463 | 915M | 20 | 2.5 | 1k~25k | DIP | 21*36 | FEC , WOR | ||
| E30-490T20D | UART | SI4438 | 490M | 20 | 2.5 | 1k~25k | DIP | 21*36 | FEC , WOR | ||
| E30-433T20S | UART | SI4438 | 433M | 20 | 2.0 | 1k~25k | SMD | 17*30 | FEC , WOR | ||
| E30-433T20D | UART | SI4438 | 433M | 20 | 2.0 | 1k~25k | DIP | 21*36 | FEC , WOR | ||
| E30-915T20S | UART | SI4463 | 915M | 20 | 2.5 | 1k~25k | SMD | 17*30 | FEC , WOR | ||
| E30-490T20S | UART | SI4438 | 490M | 20 | 2.5 | 1k~25k | SMD | 17*30 | FEC , WOR |
