Trade Shows

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




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Germany / General
André Huntrieser
✆: +49 (0) 2129 - 376-202
✉: Send email
Field Applications Engineer
Günter Fuchs
✆: +49 (0) 2129 376-200
✉: Send email
Tech Support
Raphael Balke
✆: +49 (0) 2129 376-200
✉: Send email

Austria / Switzerland
Karl Eder
✆: +43 (0) 7448 - 21643-11
✉: Send email





The Melexis TH72002 ASK transmitter IC is designed for applications in the 315 MHz industrial-scientific-medical (ISM) band. It can also be used for any other system with carrier frequencies ranging from 290 to 350 MHz.
The transmitter's carrier frequency is determined by the frequency of the reference crystal.
The integrated phase-locked loop (PLL) synthesizer ensures that carrier frequencies, ranging from 290 to 350 MHz, can be achieved. This is done by using a crystal with a reference frequency according to fref = fc/N, where N = 32 is the PLL feedback divider ratio.




Features Application examples
  • Fully integrated PLL-stabilized VCO
  • Frequency range from 290MHz to 350MHz
  • Single-ended RF output
  • ASK achieved by on/off keying of internal
    power amplifier up to 40kbit/s
  • Wide power supply range from 1.95V to 5.5V
  • Operating temp. range from -40°C to +125°C
  • Very low standby current
  • On-chip low voltage detector
  • High over-all frequency accuracy
  • Adjustable output power range
    from -10dBm to max. +11dBm
  • Adjustable current consumption from 3.2mA to 10.3mA
  • Conforms to FCC part 15 and similar standards
  • 8-pin Small Outline Integrated Circuit (SOIC)
  • Automatic meter reading (AMR)
  • Tire pressure monitoring systems (TPMS)
  • Home and building automation
  • Low power telemetry systems
  • Alarm and Security Systems
  • Consumer remote controls 
  • Garage door openers
  • Wireless access control
  • Remote controls