Hybrid Space-Qualified Crystal Oscillator (XO)


Symmetricom's 9940 series of XO's utilize proven designs and hybrid construction to provide high performance in space applications that require minimal size, weight and power.

The 9940 series utilizes 3rd or 5th overtone AT cut crystals in a Colpitts configuration with optional multiplication circuitry and output amplifier or driver stages. The precision crystals are contained within hermetic or vacuum sealed packages housed within the hybrid circuit package resulting in the lowest end of life frequency drift possible. Output frequency, output waveform, and package style can be chosen to meet a wide variety of standard and customized applications.

Mil Spec Manufacturing

The 9940 series designs are based on Symmetricom's 35-year heritage of design and manufacturing techniquesproven for reliability in numerous space applications. They are manufactured in a MIL-PRF-38534C class K facility in a class 100,000 clean room that ensures maximum reliability.

Ruggedized High Performance

The 9940 series has demonstrated excellent performance after exposure to high levels of shock, vibration and radiation consistent with the rigorous requirements of space applications.

Key Features

  10 MHz to 1.2 GHz Output Frequency

  MIL-PRF -38534C Class H or K Certified

  Sine Wave or PECL Outputs

  Low Aging and Phase Noise

  Radiation Hardened

  Environmentally Robust


The 9940 is designed for space applications including:

  Satellite Transmission

  Satellite Time and Frequency control

  Satellite Tracking and Guidance


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Our partners in other countries

Amtest-TM Kft. (HU) - Attila Polgar Amtest PL (PL) - Dariusz Koziello Amtest-TM ELTH srl (RO) - Bogdan Valcea ADELANTEST Ltd (RUS) - Igor Kozlov GIGA Electronic Ltd. - Danail Georgiev OÜ Est-Doma (EST) Promix Ltd. (UA) - Oleksandr Labuzov Vildoma (LT, LV)

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