Analogue compensated TCXO has frequency stability down to ±0.28ppm

January 27, 2014 // By Graham Prophet
Portable instrumentation equipment and communications systems (fixed and mobile) frequently require a high stability oscillator but don’t have either the physical space for or power to drive an Oven Controlled Crystal Oscillator (OCXO).

In an industry-standard 7 x 5 mm ceramic package, the IQXT-200 series offers frequency stability down to ±0.28ppm across a frequency range from 1.25 MHz to 200 MHz. Operating over the standard industrial temperature range from -40 to 85C, users can select variants to operate off a 3.0, 3.3 or 5.0V power supply with the current drawn being typically less than 15 mA. A wide range of outputs can be specified including LVTTL, HCMOS, Clipped Sine Wave or Sine Wave into 50 Ohms.

Versions are also available which allow the use of an external voltage to control the pullability which caters for applications where the output frequency needs to be locked. IQD will show the device at Embedded World 2014, Nuremberg.

IQD Frequency Products; www.iqdfrequencyproducts.com