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Micro Analog Systems releases ultra-wide temperature range VCTCXO IC

Targeted for very wide temperature range VCTCXO and TCXO modules.

Helsinki, Finland – 1 July 2019 – Micro Analog Systems Oy today announced MAS6287, a miniature VCTCXO IC primarily intended for the most stable TCXO and VCTCXO modules operating in a very wide temperature range.

The device uses patented fully analog compensation method making it possible to achieve ±1 ppm or better frequency stability over ultra-wide temperature range -60 °C … +125 °C. Small size makes it suited also for small modules.

MAS6287 has typical power consumption only 2.5 mA at 40MHz. Low phase noise of -134 dBc/Hz at 1 kHz allows the use of the MAS6287 in demanding applications. The frequency stability against load or supply voltage changes is excellent. It has programmable divider function allowing the output frequency range of 8 MHz to 52 MHz. Output waveform can be selected from clipped sine wave or CMOS.


  • Ultra-wide operating temperature range -60 °C … +125 °C
  • High frequency stability
  • Patented fully analog temperature compensation
  • Very low phase noise
  • Low current consumption
  • Very small size
  • Oscillator frequency output selectable by EEPROM direct or fc/2.
  • Output waveform selectable by EEPROM: clipped sine wave or CMOS.

The MAS6287 is available as die or in a small QFN-10 3x3x0.75mm package. Volume production has already started and samples are available.

For more info, contact an Ineltek office within your area or contact us at