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SX1281

RF Transceiver by Semtech

Note : Your request will be directed to Semtech.

The SX1281 from Semtech is a Long range, low power 2.4 GHz Wireless RF Transceiver with the linearity to withstand heavy interference. The device has an Rx sensitivity of up to -132 dBm and can transmit up to 12.5 dBm of power. It supports LoRa, FLRC, (G)FSK modulations and has excellent blocking immunity. This long range 2.4 GHz product includes multiple physical layers and modulations to optimize long range communication at high data rate for video and security applications. The transceiver integrates a time-of-flight functionality that allows to track and localize people, pets, drones, or objects in a factory. 

The SX1281 is available in a 4 x 4 mm QFN package and is ideal for home automation, tracking, smart watches and beacons applications. The radio is fully compliant with all worldwide 2.4 GHz radio regulations including EN 300 440, FCC CFR 47 Part 15 and the Japanese ARIB STD-T66.

Product Specifications

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Product Details

  • Part Number
    SX1281
  • Manufacturer
    Semtech
  • Description
    2.4 GHz Long Range (LoRA) Transceiver

General Parameters

  • Type
    IC
  • Frequency
    2.4 GHz
  • Applications
    IoT/M2M
  • Output Power(dBm)
    -18 to 12.5 dBm
  • Rx Sensitivity
    -132 dBm
  • Data Interface
    SPI, UART
  • Supply Voltage
    1.8 to 3.7 V
  • Dimension
    4x4 MM
  • Rx Current
    1 to 2.8 mA Ma
  • Tx Current
    10 to 24 mA
  • Package Type
    Surface Mount
  • Package
    qfn
  • Operating Temperature
    -40 to 85 Degrees C
  • RoHS
    Yes
  • Storage Temperature
    -55 to 115 Degrees C

Technical Documents

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