SX1231 Series 915 MHz 300 k/bps 17 dB Integrated UHF Transceiver - QFN-24

Mfr Part#: SX1231-31SKB915
Mounting Method:  Surface Mount
Package Style:  QFN-24
Packaging:  BULK
Std Packaging Qty:  1



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$147.44 USD (each)
1+ $147.44


Qty in Stock : 3
Factory Stock : N/A
Factory Lead-Time: N/A
Min. Order Qty: 1
Multiple of: 1
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Product Highlight

  • Frequency Range: 915 MHz
  • Data Rate: 300 kbps
  • Output Power: 17 dBm

The SX1231-31SKB915 is a part of SX1231 series integrated UHF transceiver. It has a storage temperature ranging from -55°C to +115°C and its available in QFN-24 package.

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 whilst 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
  • 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 and 66-byte FIFO
  • 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
  • Wireless M-BUS

View the available SX1231 series of integrated UHF transceiver

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