SX1239 Series 1020 MHz 300 Kbps Low Power Integrated UHF Receiver - QFN-24

Mfr Part#: SX1239IMLTRT
Mounting Method:  Surface Mount
Package Style:  QFN-24
Packaging:  Cut Tape
Std Packaging Qty:  3,000



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Qty in Stock : 0
Factory Stock : N/A
Factory Lead-Time: N/A
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Product Highlight

  • Frequency Range: 290 to 1020 MHz
  • Data Rate: 300 kbps
  • Supply Current: 16 mA
  • Supply Voltage: 1.8 to 3.6 V
  • Sensitivity: -120 dBm
  • Noise Figure: 7 dB
  • Operating Temp Range: -40 to +85 °C
  • No of Terminals: 24
  • Dimension: 5.1 x 5.1 x 0.95 mm

The SX1239IMLTRT is a part of SX123x series Transceiver ICs. It has an operating temperature ranging from -40 °C to +85 °C and comes in QFN-24 package.

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
  • Built-in temperature sensor and Low Battery indicator


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