Products

Trade Shows

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

 

Contact:

Germany / General
André Huntrieser
✆: +49 (0) 2129 - 376-202
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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
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TH72005

 

 

The Melexis TH72005 FSK/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 fref. 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
  • FSK through crystal pulling allows modulation
    from DC to 40kbit/s
  • High FSK deviation possible for
    wideband data transmission
  • 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 of -40°C to +125°C
  • Very low standby current
  • On-chip low voltage detector
  • High over-all frequency accuracy
  • FSK deviation and center frequency
    independently adjustable
  • 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
  • 10-pin Quad Flat No-Lead 10L QFN 3x3 (Dual)
  • 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