中文 | English
The difference between the SX1262 wireless module and the SX1276 wireless module
Date:2019/4/28 13:44:55   Browse:0

  The LoRa1262 wireless module uses Semtech's SX1262 device, which is a new wireless module product that is popular in the market. The LoRa1276-C1 wireless module uses Semtech's SX1276 device, which is one of our main products. According to the popularity of the market, the SX1262 wireless module has gradually surpassed the SX1276 wireless module. What is the reason for the SX1262 to surpass the SX1276? What? Let's take a look at the comparison of the parameters of the two wireless modules. 

      Types of

          SX1276

          SX1262

  Product number

      LoRa1276-C1

       LoRa1262 

working frequency

      868/915 MHz

     150~960MHz

  Transmit power

         20 dBm

         22 dBm  

 Emission current

         120mA

 <110mA@433hmz

 <130mA@868hmz

Receiving sensitivity

-123dBm~139dBm 

        -133dBm

 Receiving current

         10.8mA

        <6.5mA

Transmission distance

          5 km

         5 km

Anti-interference ability

         Strong

        Strong

  From the comparison of the parameters in the above figure, the performance of the two wireless modules is actually not much different, so why can the SX1262 gradually surpass the SX1276? Let's take a look at some of the advantages of these two products.

  The LoRa1276-C1 wireless module uses Semtech's SX1276 device, which uses LoRaTM spread-spectrum modulation frequency hopping technology. Its communication distance and receiving sensitivity are far superior to current FSK and GFSK modulation, and multiple transmitted signals occupy the same signal. The channel is unaffected and has superior anti-interference. The module's antenna switch is integrated and controlled by the chip. Its compact size and output power of 100mw are widely used in wireless meter reading, remote industrial control and other industries.

   The LoRa1262 wireless module uses Semtech's SX1262 device with a high-precision TCXO crystal, ultra-low receive current and sleep current, and -148dBm sensitivity. Built-in 64KHz crystal oscillator can wake up the microcontroller periodically under low power consumption. This module antenna switch is integrated and controlled by the chip, saving the resources of the external MCU. The compact size and 22dBm (160mW) output power have great advantages in IoT and battery-powered applications.

   According to the parameters and advantages, the advantages of the SX1262 operating frequency compared to the SX1276 are as follows when the parameters of the two wireless modules are similar:

  1. The operating frequency is selected more, the SX1262 can be customized to 150~960HMZ, and the SX1276 is only available in 868/915 MHz;

  2. The SX1262 also uses a high-precision TCXO crystal oscillator to provide more precise and stable control during the operation of the wireless module.

  3. Ultra-low-consumption receiving current, SX1278 receiving current is 10.8mA, SX1262 receiving current <6.5mA, can ensure that SX1262 has higher working time without replacement battery.


prev: What are the advantages of the LoRaWAN network protocol compared to the LoRa proprietary protocol?
next: Does the wireless module need to be encrypted? How to encrypt?