Overview
The SX1278IMLTRT is a wireless and sensing, low-power long-range transceiver developed by Semtech Corporation. This device features the LoRa® long range modem, which provides ultra-long range spread spectrum communication and high interference immunity while minimizing current consumption. The LoRa® modulation technique enables a sensitivity of over -148dBm, making it optimal for applications requiring range or robustness. The transceiver is designed to solve the traditional design compromise between range, interference immunity, and energy consumption.
Key Specifications
| Parameter | Value |
|---|---|
| Frequency Range | 137 MHz to 525 MHz |
| Interface Type | SPI |
| Maximum Data Rate | 300 kbps |
| Maximum Operating Temperature | +85°C |
| Minimum Operating Temperature | -40°C |
| Modulation Format | FSK, GFSK, GMSK, MSK, LoRa, OOK |
| Output Power | -1 dBm to 20 dBm |
| Package / Case | QFN-28 |
| Sensitivity | -111 dBm to -148 dBm |
| Supply Current Receiving | 12 mA |
| Supply Current Transmitting | 120 mA |
| Supply Voltage - Max | 3.7 V |
| Supply Voltage - Min | 1.8 V |
Key Features
- Bullet-proof front end: IIP3 = -11 dBm
- Excellent blocking immunity
- Low RX current of 9.9 mA, 200 nA register retention
- Fully integrated synthesizer with a resolution of 61 Hz
- FSK, GFSK, MSK, GMSK, LoRa, and OOK modulation
- Built-in bit synchronizer for clock recovery, preamble detection
- Automatic RF Sense and CAD with ultra-fast AFC
- Packet engine up to 256 bytes with CRC
- Built-in temperature sensor and low battery indicator
Applications
- Automated Meter Reading
- Home and Building Automation
- Wireless Alarm and Security Systems
- Industrial Monitoring and Control
- Long Range Irrigation Systems
Q & A
- What is the frequency range of the SX1278IMLTRT?
The frequency range of the SX1278IMLTRT is from 137 MHz to 525 MHz.
- What modulation formats does the SX1278IMLTRT support?
The SX1278IMLTRT supports FSK, GFSK, GMSK, MSK, LoRa, and OOK modulation formats.
- What is the maximum data rate of the SX1278IMLTRT?
The maximum data rate of the SX1278IMLTRT is 300 kbps.
- What is the operating temperature range of the SX1278IMLTRT?
The operating temperature range is from -40°C to +85°C.
- What is the sensitivity of the SX1278IMLTRT?
The sensitivity of the SX1278IMLTRT is from -111 dBm to -148 dBm.
- What is the package type of the SX1278IMLTRT?
The package type is QFN-28.
- What are the typical supply currents for receiving and transmitting?
The typical supply current for receiving is 12 mA, and for transmitting is 120 mA.
- Does the SX1278IMLTRT have built-in temperature and low battery indicators?
- What are some common applications of the SX1278IMLTRT?
- Is the SX1278IMLTRT RoHS compliant?
