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Introduction to Oscillators

An oscillator is a circuit component or device that produces an oscillating electrical signal. Oscillators generate a sinusoidal signal, but can also produce square wave or triangular waveforms as well. Depending on the application oscillators can achieve varying levels of accuracy, stability, and noise control.

KC5032A27.0000CMGE00 Application Field and Working Principle

The KC5032A27.0000CMGE00 is a precision crystal oscillator with a frequency accuracy of +/-20ppm, a total harmonic distortion of -65dBc/Hz, and low phase noise. This oscillator is designed for use in high-end radio applications such as digital broadcasting, wireless communications, and radar systems.

The KC5032A27.0000CMGE00 oscillator employs the Pierce Oscillator configuration to generate an electrical signal. A simplification of this type of oscillator shows a frequency determining circuit that uses a quartz crystal to generate a square wave signal. This waveform is then amplified and filtered through an LC resonant tank circuit to create a sinusoidal output signal. Such quartz controlled oscillators are extremely useful because they provide very accurate frequency signals over a wide frequency range despite small changes in temperature.

The KC5032A27.0000CMGE00 also utilizes frequency steering technology which allows the temperature-induced frequency drift to be estimated by the oscillator at the initial start-up. This is then used to adjust future oscillations to correct the temperature induced drift. Additionally, the KC5032A27.0000CMGE00 is equipped with full support for a wide range of logic families, as well as high-end packaging options such as surface mount, through-hole, and panel mount options.

Conclusion

The KC5032A27.0000CMGE00 is an incredibly versatile and accurate oscillator that provides the stability, accuracy, and high performance needed for applications such as digital broadcast, wireless communications, and radar systems. The use of both quartz crystal frequency and frequency steering technologies enables the oscillator to be extremely stable over a wide temperature range. The oscillator is also highly flexible, as it is available with a variety of logic families and packaging options.

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