The SX1239 is a highly integrated RF receiver capable of operation over a wide frequency range, including the 433,868 and 915 MHz license-free ISM (Industry Scientific and Medical) frequency bands. Its highly integrated architecture allows for a minimum of external components while maintaining maximum design flexibility.
- High Sensitivity: down to -120 dBm at 1.2 kbps
- High Selectivity: 16-tap FIR Channel Filter
- Bullet-proof front end: IIP3 = -18 dBm, IIP2 = +35 dBm, 80 dB Blocking Immunity, no Image Frequency response
- Low current: Rx = 16 mA, 100nA register retention
- Constant RF performance over voltage range of chip
- FSK Bit rates up to 300 kb/s
- Fully integrated synthesizer with a resolution of 61 Hz
- FSK, GFSK, MSK, GMSK and OOK demodulation
- Built-in Bit Synchronizer performing Clock Recovery
- Incoming Sync Word Recognition
- 115 dB+ Dynamic Range RSSI
- Automatic RF Sense with ultra-fast AFC
- Packet engine with CRC, AES-128 encryption and 66-byte FIFO
- AEC-Q100 Qualified Part
- Built-in temperature sensor and Low Battery indicator
- Automated Meter Reading
- Wireless Sensor Networks
- Home and Building Automation
- Wireless Alarm and Security Systems
- Industrial Monitoring and Control
- QFN 24
- SX1239IMLTRT (3000 pieces, Tape and Reel)
Datasheets & Documentation
Distributor/Catalog Supplier Inventory
View product availability from participating distributors below. Browse all distributers here.
Water Sanitation For All With LoRaExplore how LoRa-enabled devices are working to solve the ongoing global water and sanitation… READ NOW
Ensuring Reliable Gas Supply and Increasing Infrastructure SafetyVestitel leverages LoRa® devices and the LoRaWAN® standard to deploy 100,000 smart gas meters… READ NOW
Optimize Building ManagementNordic Propeye has integrated Semtech’s LoRa® devices and the LoRaWAN® standard in its HVAC… READ NOW
Cold Chain MonitoringBoluda Shipping selected WITRAC's LoRa-enabled platform to monitor the quality of goods during cold… READ NOW
Satellite-based IoT ConnectivitySemtech technology has enabled the creation of low cost, satellite-based, real-time, bidirectional,… READ NOW
Optimized Electrical GridsElvexys leverages LoRa devices and the LoRaWAN standard to deliver remote and reliable fault… READ NOW
NGK, Exeger, TACHIBANA ELECTRONC SOLUTIONS and…NGK INSULATORS, LTD., Exeger Operations AB, TACHIBANA ELECTRONIC SOLUTIONS CO., LTD., and Semtech… READ NOW
Semtech Expands LoRa® Portfolio with New…New Developer Platforms from Murata and Johanson Technology enable smaller form factor, lower… READ NOW
Semtech Collaborates with The Things Industries to…• Addressing IoT integration complexity and challenges across both cellular and LoRaWAN®,… READ NOW
Intensive pig farming, also known as the ‘intensive piggery system’, has become the primary method of farming in the pig industry. According to this method, pigs are housed indoors and confined in individual stalls or straw-lined sheds at high stocking density, while keeping pigs of similar ages to live together in large crowds under common environmental settings. By doing so, feeding efficiency is significantly improved, and emerging technologies are often employed to maintain pig health and safeguard pig growth - monitoring various environmental parameters inside the barns with wireless temperature and humidity sensors is an exemplary case in point.
Stal Data Monitors Environmental Conditions and…Intensive pig farming, also known as the ‘intensive piggery system’, has become the… READ NOW
According to the Ministry of Industry and Information Technology of the People's Republic of China, China's 5G network coverage continues to expand. Large-scale deployment of the 5G network strengthens the Internet of Things (IoT) ecosystem, extending IoT application scenarios to diversified fields including manufacturing, agriculture, medical care, security, and smart cities.
Milesight’s 5G AIoT Network Camera Demonstrated…According to the Ministry of Industry and Information Technology of the People's Republic… READ NOW
I am excited to introduce the “The WAN Network Show” - a new podcast series by Semtech, the creators of LoRa®, hosted by me, Rémi Lorrain.
Introducing “The WAN Network Show” PodcastI am excited to introduce the “The WAN Network Show” - a new podcast series by… READ NOW
This year’s LoRaWAN® World Expo, held in Paris in early July, featured a wealth of information exchanged by leading industry figures from around the world. The live event was a true success with more than 1,200 attendees from 68 countries – the largest LoRa Alliance® event ever held.
The LoRaWAN® World Expo: The Power of LoRaWANThis year’s LoRaWAN® World Expo, held in Paris in early July, featured a wealth of… READ NOW
The Need for Continuous Asset Tracking
Of the many complexities along the global supply chain and daily logistics operations, asset tracking is arguably the most challenging. Disruptions and subsequent capital loss not only affect goods transported worldwide, but also containers and vehicles used for shipment. On a more local scale, retail stores and shop owners are challenged in keeping track of their assets and supply at all times throughout the day for reasons varying from theft prevention to inventory management.
LoRa Cloud Locator Service Evaluates Asset…The Need for Continuous Asset Tracking Of the many complexities along the global supply… READ NOW
Smart cities are key to improving quality of life of citizens and driving down carbon emissions. And monitoring power, air and water quality and transport requires reliable low-cost sensors in a rugged, cost-effective network.
New IoT Connectivity Trends for Smart CitiesSmart cities are key to improving quality of life of citizens and driving down carbon… READ NOW
The increasing demand for intelligent, scalable and cost-effective global asset tracking solutions is a trend, which has been recently accelerated by the urgency to improve end-to-end supply chain performance, visibility and customer services.
Semtech Expands LoRa Edge With Multi-Band LoRa…The increasing demand for intelligent, scalable and cost-effective global asset tracking… READ NOW
The New South Wales Department of Primary Industries (NSW DPI) launched its $6.7 million AUD Climate Smart Pilots project in 2018. The program trials digital technologies to improve the information generated for farmers regarding natural resources and climate variability across fisheries, horticulture and livestock sectors. As temperatures warm, rainfall regimes change and seasons shift, innovative Internet of Things (IoT) technology can provide early warnings, input control and new ways to manage farming systems.
Environmental Conditions and Oyster Health…The New South Wales Department of Primary Industries (NSW DPI) launched its $6.7 million… READ NOW
Data is at the heart of intelligent process automation, but where does that data come from? Collecting accurate data remotely has always been a challenge for utilities. This has led to fragmented data collection systems that restrict the use of data analytics at the scale necessary to make a real difference to the business and to consumers.
LoRaWAN® Expands Utilities Businesses With IoT…Data is at the heart of intelligent process automation, but where does that data come… READ NOW
Explore a wealth of downloadable resources and datasheets to assist with prototyping and production.
Login or register for mySemtech to gain access to restricted product documentation and to add documents to your Watch List for update alerts