SX1272
The SX1272/73 transceivers feature the LoRa® long range modem that provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption.
Using Semtech’s patented LoRa modulation technique SX1272/73 can achieve a sensitivity of over -137dBm using a low cost crystal and bill of materials. The high sensitivity combined with the integrated +20dBm power amplifier yields industry leading link budget making it optimal for any application requiring range or robustness. LoRa also provides significant advantages in both blocking and selectivity over conventional modulation techniques, solving the traditional design compromise between range, interference immunity and energy consumption.
Features
- LoRa Modem
- 157dB maximum link budget
- +20dBm at 100mW constant RF output vs. V supply
- +14dBm high efficiency PA
- Programmable bit rate up to 300kbps
- High sensitivity: down to -137dBm
- Bullet-proof front end: IIP3 = -12.5dBm
- 89dB blocking immunity
- Low RX current of 10mA, 100nA register retention
- Fully integrated synthesizer with a resolution of 61Hz
- FSK, GFSK, MSK, GMSK, LoRa and OOK modulation
- Built-in bit synchronizer for clock recovery
- Preamble detection
- 127dB Dynamic Range RSSI
- Automatic RF Sense and CAD with ultra-fast AFC
- Packet engine up to 256 bytes with CRC
- Built-in temperature sensor and low battery indicator
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Automated Meter Reading
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Home and Building Automation
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Wireless Alarm and Security Systems
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Industrial Monitoring and Control
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Long range Irrigation Systems
Applications
Packaging
- QFN 28
Order Codes
- SX1272IMLTRT - Pb-free, Halogen free, RoHS/WEEE compliant product
- SX1273IMLTRT- Pb-free, Halogen free, RoHS/WEEE compliant product
- SX1272DVK1BAS (868MHz)
- SX1272DVK1CAS (915MHz)
- SX1272RF1BAS (868MHz)
- SX1272RF1CAS (915MHz)
Pb(Lead)-Free/RoHS-Green Info
(-40°C to +85°C / 4000 cycles)
(50°C, 4000 Hrs)
Related Parts
SX1272IMLTRT
Datasheets & Documentation
Application Notes
- AN1200.10: ETSI Compliance of the SX1272/3 LoRa Modem
- AN1200.13 and AN1200.17: LoRa Modem Design
- AN1200.18: Software Implementation of Data Whitening and CRC
- AN1200.19: SX127x Reference Design Overview
- AN1200.20: Planar F-Antenna Reference Design
- AN1200.21: Reading Channel RSSI During a CAD
- AN1200.22: LoRa Modulation Basics
- AN1200.23: Recommended SX1272 Settings for EU868 LoRaWAN Network Operation
- AN1200.26: LoRa and FCC Part 15.247: Measurement Guidance
- AN1200.28: MCU Requirements for LoRaWAN
- AN1200.32: Designing for High Efficiency and Low-Harmonic Emissions
- AN1200.43: Testing for FCC Pre-Compliance with LoRaWAN Modules
- AN1200.59: Selecting the Optimal Reference Clock
- AN1200.62: Best Practices for FCC Pre-Compliance testing of LoRaWAN Modules
- AN1200.80: LoRa® Modem Doppler Immunity
Distributor/Catalog Supplier Inventory
View product availability from participating distributors below. Browse all distributors here.
| Part # | Country | Qty | Buy | Distributor |
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Resources
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READ NOWLogin to mySemtech to access product documentation for assistance with prototyping and production.
Find support and additional resources specifically for LoRa at the links below.
