Semtech SX1276, SX1276IMLTRT

LoRa Core 137MHz to 1020MHz Long Range Low Power Transceiver

The SX1276/SX1277/SX1278/SX1279 transceivers feature a LoRa long-range modem that provides ultra-long-range spread-spectrum communication with high interference immunity to minimize current consumption. Using Semtech's patented LoRa modulation technology SX1276/77/78/79, sensitivity above -148dBm can be achieved using low cost crystals and bill of materials. These transceivers feature ultra-high sensitivity and integrate a +20 dBm power amplifier for an industry-leading link budget, making them the best choice for applications requiring large range and high intensity. LoRa also brings modularity and sensitivity advantages that traditional module technologies cannot match, ending the predicament that traditional designs have to make trade-offs between range, noise immunity, and power consumption. Overview

Function

LoRa Modem

Maximum link budget 168 dB

+20 dBm — when constant RF output is 100 mW and supply voltage V

+14 dBm high efficiency PA

Programmable bits up to 300 kbps

High sensitivity: as low as -148 dBm

Bulletproof front end: IIP3 = -11dBm

Excellent blocking immunity

Low current: 9.9 mA for RX, 200 nA for holding registers

Highly integrated synthesizer with 61 Hz resolution

FSK, GFSK, MSK, GMSK, LoRa and OOK modulation

Built-in bit synchronizer for clock recovery

Preamble detection

127 dB dynamic range RSSI

Automatic RF Sensing and CAD with Ultra-Fast AFC

Packet engine using CRC, up to 256 bytes

Built-in temperature sensor and low battery indicator

application

Automatic meter reading

Home and Building Automation

Wireless Alarm and Security System

Industrial monitoring

remote irrigation system

package

QFN 28

SX1276IMLTRT: Pb-Free, Halogen-Free, and RoHS/WEEE Compliant