402F20011CJT

402F20011CJT Application Field and Working Principle

Crystal oscillators are widely used in numerous electronic products and systems. The 402F20011CJT crystal oscillator from ZMD is an example of a hermetically sealed parallel resonant crystal package. It is manufactured with high-grade quartz crystal wafers for providing an extremely stable frequency.

The 402F20011CJT Crystal Oscillator can be used over a broad temperature range of -35 extension to +85 degrees C with frequencies ranging from 10MHz to 125MHz. It offers a low phase jitter of less than 1.2ps and the long term aging rate is less than 5ppm per year at ambient temperature. This oscillator has a wide symmetrical voltage tolerant range from 1.8V to 4V, making it an ideal solution for applications that require integral oscillators with low phase noise for digital and other sensitive analog applications.

The 402F20011CJT has a square metal leadless package type, with pins populated in a 16 Pin Surface Mount configuration. The device has a total height of 1.1mm, making it suitable for use in small form factor applications. It operates with a supply voltage of 3.3V and has a maximum output power of 2mW. The frequency stability and oscillator life is assured even with multiple temperature cycling.

Application Fields

The 402F20011CJT can be used in a variety of applications, such as in medical monitoring systems, communications equipment, thermal Printers, industrial automation, power supplies and in GPS systems.

Working Principles

Crystals are known as one of the most accurate ways to measure time. The 402F20011CJT is based on the principle of the piezoelectric effect. Here, the Quartz Crystal wafer has electrons which resonate and vibrate when an alternating electric field is applied. This natural frequency of vibration is known as the resonant frequency.

The main function of the oscillator is to convert an AC signal into a DC signal. It works through three stages. The first stage is an amplifier which amplifies the vibration of the quartz crystal and converts it into a sinusoidal waveform. The second stage is a frequency divider, which unlocks the frequency of the quartz crystal by dividing it and then amplifies the output. The third stage converts the higher frequency of the crystal fundamental mode into an output waveform that is close to a sinusoidal wave.

Conclusion

The 402F20011CJT Crystal Oscillator is a high performance oscillator with a stable frequency output. With a low phase jitter, wide symmetrical voltage tolerant range, and a low aging rate, it is an ideal choice for applications requiring low phase noise oscillators. It has a wide range of applications, from medical monitoring systems to GPS sensors and thermal printers.