Products
Wireless RF
Semtech SX1231
Integrated RF Transceiver with on +17dBm 290-1000 MHz
The SX1231 is a highly integrated RF transceiver 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.
Overview
Features
- 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
- Programmable Pout: -18 to +17 dBm in 1dB steps
- 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 modulations
- 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
Applications
Packaging
- QFN-24
Order Codes
- SX1231IMLTRT: Pb-free, Halogen free, RoHS/WEEE compliant, 3000 pcs, Tape & Reel
- SX1231MESH-868: Mesh Network 868MHz Starter Kit
- SX1231MESH-915: Mesh Network 915MHz Starter Kit
Diagrams and Specs
Block Diagram
Click diagram to enlarge
Datasheets and Resources
Application Notes
- Calculating Radiated Power and Field Strength for Conducted Power Measurements
- FCC Part 15.247 Rules Systems Using Digital Modulation
- Improving the Accuracy of a Crystal Oscillator
- RF Design Guidelines: PCB Layout and Circuit Optimization
- Software Implementation of Data Whitening and CRC
- SX1231 Wireless Star Network with FHSS
- XE8000 Driving XE1200 transceivers - Standard API definitions