2000 Milliwatts sx1272 PA Module, 868/915Mhz

N427AS module based Semtech sx1272 LoRa transceiver wireless chip, pa, the module designed for 868/915Mhz LoRa band. N427AS

can be program for customizer. The N427AS module has +33 dBm output power and the sensitivity down to -126 dBm at 1.2 kbps. The module support long distance data broadcast and thread.

The SX1272 module has a small SMD package, Integrated sx1272 and pa and IPEX, it reduced a lot of development troubles.

N427AS module hardware is designed for maximum range, 20000m + Range (Low rate and Line of Sight).

sx1272 Features

This device integrates the new LoRa (remote) modulation technology of Shengte Company, which can greatly improve the transmission distance compared with other modulation methods. At present, the maximum transmission distance of the European smart meter transceiver using FSK modulation technology is 1-2 kilometers. Under the same conditions and regulatory restrictions, the transmission distance of SX1272 using LoRa modulation technology can exceed 15km.

SX1272 can be used in industrial control, agriculture/irrigation, intelligent meter reading and sensor network applications. The use of LoRa modulation technology expands the transmission distance of devices, so that the above applications do not need repeaters, greatly simplifying the system design and reducing the cost of headquarters deployment, which makes SX1272 an ideal solution for emerging smart cities, the Internet of Things and machine to machine applications.

The SX1272 with low-cost crystal has a reception sensitivity of - 137 dBm. For the most advanced device using FSK modulation technology in the world, if the same crystal as SX1272 is used, its reception sensitivity is - 115 dBm; If expensive temperature controlled crystal oscillator is used, its reception sensitivity can only be reduced to? To - 125 dBm.

In addition, compared with FSK devices, SX1272 RFIC has a 25 dB advantage in suppressing in band signal interference. Therefore, SX1272 module can be effectively used in industrial, scientific and medical (ISM) frequency bands such as safety and meter reading, because it is not interfered by sub GHz frequency and 4G/LTE signal. This anti-interference capability and high linearity RF front-end make the SX1272 the most reliable and robust solution under strong interference signals.

In addition to LoRa, SX1272 also supports GFSK, FSK, GMSK and OOK modulation technologies, and aims to support WM Bus, IEEE 802.15.4g (SUN), FCC 15.247, ARIB T96/108, EN 300-220 and other global standards and regulations.

N427AS sx1272 Module Wireless protocols

• 6LoWPAN,

• IEEE 802.15.4,

• Proprietary,

• Wireless M-Bus

• LoRa

N427AS sx1272 Module Parameters

N426AS CC1125 Module pinout Description

N427AS Module Package

How to used N427AS Module

1. PA, LNA, SWITCH user's guide

Note: TXEN, RXEN, LNAEN, VTCXO is connect to MCU IO port, the IO is 3.3V cmos level. The max cmos level is 3.6V.

2. connect N427AS to MCU SPI port.

For MCU，please change the code to suit for the MCU.

Then you can down load your code and test it.