The DTDS’s Module 622 is built based on SEMTECH® SX1262 LoRa® based communications device controlled by RENESAS RL78 G13 family microcontroller running the LoRaWAN® stack. The module is easily interfaceable to a host controller over AT commands.
DTDS’s Module 622 for LoRa® communications
Features:
- TCXO enabled stable clock.
- Antenna matching network for a 50 Ohms termination is provided as a part of the module.
- Operating Temperature range -40 deg C to +85 deg C
Technical Specifications:
| Parameters | Typical Specifications | Units | |
| Mechanical Specification | Size | 15(W) X 27(L) X 2.3(H) | mm |
| Package | 26 pins, SMD | – | |
| Electrical Specification | Power Supply | +1.8 to +3.7 | V |
| Standby Current | < 4 | mA | |
| TX Current | 118 mA @22 dBm, 868/915 MHz | mA | |
| RX Current | >7 mA @BW 125 kHz, 868/915 MHz | mA | |
| Programmable Data Rate | 0.018 to 62.5 (LoRa), 0.6 to 300 (FSK) | Kb/s | |
| RF Interface | RFIO single ended, 50 ohm | – | |
| Programmable Operating frequency | 863 to 870 (Band 868) | MHz | |
| 902 to 928 (Band 915) | MHz | ||
| RF Specification | Frequency deviation | 0.6 to 200 KHz for FSK | KHz |
| Not Programmable in LoRa | |||
| Sensitivity | -137dBm @SF12, BW 125kHz | dBm | |
| -124dBm @SF7, BW 125kHz | dBm | ||
| RF interface | RFIO | – | |
| Interfaces | UART | UART_TX, UART_RX | – |
| I2C | I2C_SCL, I2C_SDA | ||
| ADC | 10 bit, 4 channels | – | |
| GPIO | 1 | ||
| Host interface available via AT commands over UART | |||
