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27.02. - 01.03.2018, Nuremberg
Hall 1, Booth 1-670

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26.06. - 28.06.2018, Nuremberg
Hall 5, Booth 5-401


Germany / General
André Huntrieser
✆: +49 (0) 2129 - 376-202
✉: Send email
Field Applications Engineer
Günter Fuchs
✆: +49 (0) 2129 376-200
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Tech Support
Raphael Balke
✆: +49 (0) 2129 376-200
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Austria / Switzerland
Karl Eder
✆: +43 (0) 7448 - 21643-11
✉: Send email





The MLX71121 is a multi-band, single-channel RF receiver based on a double-conversion super-heterodyne architecture. It can receive FSK and ASK modulated signals. The IC is designed for a variety of applications, for example in the European bands at 433MHz and 868MHz or for the use in North America or Asia, e.g. at 315MHz, 447MHz or 915MHz.
The receiver’s extended temperature and supply voltage ranges make the device a perfect fit for automotive or similar applications where harsh environmental conditions are expected.




Features Application examples
  • Multiband, single-channel RF receiver
  • Double-conversion super-heterodyne architecture
  • Frequency rang from 300MHz to 930MHz
  • Dual RF input for antenna space and frequency diversity, LNA cascading or differential feeding
  • Fully integrated PLL-based synthesizer
  • 2nd mixer with image rejection
  • Reception of ASK or FSK modulated signals
  • Internal FSK demodulator
  • Wide operating voltage and temperature range
  • Very low standby current consumption
  • Low operating current consumption
  • Internal IF filter with 300kHz BW
  • Power supply range from 2.1V to 5.5V
  • Temperature range from -40°C to +125°C
  • Shutdown current: typ. 50nA
  • Crystal reference frequency of 16MHz to 27MHz
  • Average or peak detection data slicer mode
  • RSSI output with high dynamic range for RF level indication
  • Output noise cancellation filter
  • MCU clock output
  • High over-all frequency accuracy
  • Compliant to EN 300 220, ARIB STD-T67 and other standards
  • 32L QFN 5x5 package
  • General digital or analog data receiving
  • Automatic meter reading (AMR)
  • Home and building automation
  • Low power telemetry systems
  • Alarm and Security Systems
  • Consumer remote controls 
  • Garage and gate controls
  • Wireless access control
  • Remote controls