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SX1278IMLTRT
+Lista de MateriaisIC RF TXRX 802.15.4 28VQFN
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FabricanteSemtech Corporation
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Peça do Fabricante #SX1278IMLTRT
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Pacote QFN-28
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Em Estoque7798
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Especificações
| Atributo | Valor |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| Series | LoRa™ |
| ProductStatus | Active |
| Type | TxRx Only |
| RFFamily/Standard | 802.15.4 |
| Protocol | LoRa™ |
| Modulation | FSK, GFSK, GMSK, MSK, OOK |
| Frequency | 137MHz ~ 525MHz |
| DataRate(Max) | 300kbps |
| Power-Output | 20dBm |
| Sensitivity | -148dBm |
| SerialInterfaces | SPI |
| GPIO | 6 |
| Voltage-Supply | 1.8V ~ 3.7V |
| Current-Receiving | 10.8mA ~ 12mA |
| Current-Transmitting | 20mA ~ 120mA |
| OperatingTemperature | -40°C ~ 85°C |
| MountingType | Surface Mount |
| Package/Case | 28-VQFN Exposed Pad |
Visão Geral
Description
Key features of the SX1278IMLTRT include its ability to operate in the 137 MHz to 525 MHz frequency range, adhering to regulations like those in the 433 MHz and 470 MHz bands. It utilizes LoRa modulation which provides significant immunity to interference and enables the capability to connect devices up to 15 kilometers apart in rural environments.
The module provides high sensitivity up to -148 dBm and offers programmable bit rates from 300 bps to 37.5 kbps. It includes built-in support for FSK, GFSK, MSK, and GMSK modulation schemes besides LoRa. The SX1278 is popular for its robust performance in challenging environments, ensuring reliable data transmission in varied IoT deployments.
Equivalent
1. SX1276 - Semtech's similar LoRa transceiver with broader frequency range.
2. RFM95/RFM96 - HopeRF modules with LoRa capabilities.
3. LoRaBee - Microchip's LoRa module for easy integration.
4. RF96W - Dorji's alternative LoRa module.
5. DRF1278F - Dorji's drop-in replacement with similar specs.
These alternatives offer similar frequency and functionality for wireless communication needs.
Features
Key features include:
1. LoRa™ and FSK modulation support.
2. High sensitivity up to -137 dBm.
3. Maximum output power of +20 dBm.
4. Low current consumption, enhancing battery life.
5. Programmable bit rates up to 300 kbps.
6. Built-in packet engine to manage data communication.
7. Robust interference immunity and high selectivity.
8. Automatic RF Sense and CAD (Channel Activity Detection) with ultra-fast AFC (Automatic Frequency Calibration).
These features make the SX1278IMLTRT suitable for applications requiring long-range connectivity and reliable data transmission, such as in industrial automation, agriculture, and remote monitoring systems.
Pinout
The SX1278 comes in a QFN-28 package, meaning it has 28 pins. Here’s a brief overview of its key functions associated with these pins:
1. Power Supply Pins: These include pins for VDD (power supply voltage) and GND (ground).
2. RF Interface Pins: Used for connecting to the RF output/input, such as Antenna and RF switches.
3. Control Interface Pins: SPI interface pins (NSS, SCK, MOSI, MISO) for communication with a microcontroller.
4. Digital I/O Pins: Configurable GPIO pins for various functions like DIO0 to DIO5, used for interrupt signaling or other control features.
5. Oscillator Pins: Pins for connecting external crystals or clock sources, essential for frequency synthesis.
These functionalities enable the SX1278 to operate efficiently within wireless communication systems, specifically for long-range, low-power applications.
Manufacturer
Application
1. Internet of Things (IoT): Facilitates connectivity for smart cities, agriculture, and environmental monitoring.
2. Smart Metering: Used in utility meters for water, gas, and electricity to enable remote data collection.
3. Industrial Automation: Supports wireless sensor networks in factories for monitoring and control.
4. Asset & Fleet Tracking: Enables real-time tracking of assets and vehicles over large distances.
5. Home Automation: Powers smart home devices for control and monitoring.
6. Security Systems: Supports wireless communication in surveillance and alarm systems.
These applications benefit from the module's long-range communication, low power consumption, and robust signal penetration.