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Oscillators

Oscillators are electronic circuits that generate a periodic signal usually used in clock and timing circuit applications. Oscillators are an important component of any electronic system and their uses ranges from communications, mobile devices, computing and industrial electronics to autonomous and radio systems. The most common type of oscillator is the crystal oscillator. In this article, we will discuss the application field and working principle of the CWX815-32.768M Crystal Oscillator.

CWX815-32.768M Application Field

The CWX815-32.768M is an exceptionally reliable and repeatable quartz crystal oscillator. It has fundamental frequency of 32.768 KHz and is widely used as a reference clock in applications related to timekeeping, communications, and data processing. The oscillator primarily finds application in application fields such as radio communication, automotive, medical, consumer electronics, etc.

It is also used as a main clock source in GPRS/GSM mobile phones and base stations as well as in smart metering applications. It is also used in digital watches, home audio-visual equipment, electronic equipment for cars, DVD players, mobile phones, and more. The oscillator also finds application in PC systems as well as other clock applications, which require low power, high reliability, and excellent performance.

Working Principle

The CWX815-32.768M is a quartz crystal oscillator, which is based on the piezoelectric effect of certain crystalline materials. Quartz crystals are usually cut in the shape of a tuning fork and when they are subjected to an electrical charge, they vibrate at a frequency determined by the mass and geometry of the crystal. The frequency of oscillation is calculated by the formula f = 1/2π √(mC/G), where m is the mass, C is the capacitance, and G is the elasticity of the quartz crystal.

The CWX815-32.768M oscillator uses a microprocessor-controlled oscillator circuit in order to achieve an ultra-stable frequency. The crystal is placed within an electrically isolated chamber to ensure that any environmental vibration or thermal noise is eliminated. The crystal is powered by a low frequency excitation signal, and its frequency control loop continuously monitors the quartz crystal within the electrically isolated chamber. This allows the oscillator to maintain a stable output frequency, and the accuracy of the frequency output can be maintained over the full temperature and voltage ranges.

The output of the CWX815-32.768M oscillator is a signal in a sine waveform, which can be either an AC or DC output. The frequency of the sine wave can be adjusted by changing the load value on the crystal. The quality factor, or Q-factor, of the oscillator is also adjustable. That is, the higher the load, the higher the Q-factor and the higher the frequency stability of the oscillator.

Conclusion

In conclusion, the CWX815-32.768M crystal oscillator is a quartz crystal-based oscillator that produces a reference clock with excellent stability and accuracy. It finds application in many different fields, such as radio communications, automotive, medical, and consumer electronics. The oscillator uses a microprocessor-controlled oscillator circuit to ensure a stable frequency output. The frequency of the oscillator can be adjusted by changing the load value on the crystal, and the quality factor, or Q-factor, can also be adjusted for better stability.

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