Semtech LoRa SX1272 SX1276 SX278 RF wireless module DRF1278F

Specifications

Features:
*Frequency Range: 433MHz
*Modulation: FSK/GFSK/MSK/LoRa
*SPI Data Interface
*Sensitivity: -136dBm
*Output Power: +20dBm
*Data Rate: <300 kbps
*127dB dynamic Range RSSI
*Excellent blocking immunity
*Preamble detection
*Automatic RF sense and CAD monitor
*Built-in bit synchronizer for clock recovery
*Packet engine up to 256 bytes with CRC
*Working Temperature: -40°C ~+80°C
*Build-in temperature sensor
*Standby current: ≤ 1uA
*Supply voltage: 1.8~3.6V


DRF1278F is a type of low cost RF front-end transceiver module based on SX1278 from Semtech Corporation. It keeps the advantages of RFIC SX1278 but simplifies the circuit design. The high sensitivity (-136dBm) in LoRa modulation and 20dBm high power output make the module suitable for low range and low data rate applications.

DRF1278F module consists of RFIC SX1278, thin SMD crystal and antenna matching circuit. The antenna port is well matched to standard 50 Ohm impedance. Users don't need to spend time in RF circuit design and choose suitable antennas for different applications. DRF1278F operates at 1.8~3.6V with extra low standby current which makes it suitable for battery powered-up applications. Because DRF1278F is purely hardware module and it adopts ±10ppm crystal which the resolution of it places a important role in calculating spreading factor, bandwidth, etc. Users need to read the datasheet of SX1278 carefully in order to use the module in the best performance. DORJI also provides sample codes based on microcontroller and Arduino platform. The customers who buy the modules can contact the sales of DORJI for modifiable copies.