353NB3C163T

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Oscillators

Oscillators refer to circuits or devices whose working frequency and amplitude remain relatively constant without the need for external control. It is usually used as an energy conversion device suitable for radio telescope radar, television and other areas, and automatically adjusts the frequency and phase of the energy. The oscillation circuit of the oscillator can be divided into two parts, one is the resonant circuit, and the other is the oscillation circuit. In the electronic circuit of the oscillator, a useful signal is induced in the resonant circuit, and then coupled out to the outside, so as to get a stable output signal.

353NB3C163T is a type of oscillator with a wide application field. It has a full range of views including high-frequency, precision and long-term stability. The oscillator includes a quartz crystal resonator, an amplifier resistor and other components. The key component of the device is a quartz tuning fork. It has an approximate thickness of 500µm down to 327 µm and a width of 20 to 270µm. This low-consumption oscillator offers a frequency range from 2.5MHz to 65MHz. In addition, it is widely used in timbre and frequency circuitry, from mobile phones to radar systems.

Working Principle

The basic working principle of the 353NB3C163T oscillator can be described through the following steps: firstly, a quartz tuning fork is placed in the resonance circuit of an amplifier. The quartz crystal material has a small continuous frequency range when subjected to mechanical stress. This frequency is referred to as the "operating frequency" and the amount of mechanical pressure that sustains the crystal by the resonator circuit determines the frequency of the crystal. At the near-resonant frequency, the impedance of the quartz crystal is very small. When the voltage is applied to the oscillator in the frequency range, the current passes through the quartz crystal and the output amplitude increases sharply.

The resonance of the crystal will cause the oscillation frequency to remain relatively stable and the working frequency of the amplifier will be the same with that of the crystal. The output voltage of the oscillator depends on the feedback voltage of the amplifier, and the maximum voltage is reached when the loop gain is equal to the 1. As is known, this loop gain is generated by a resistor and a capacitor configured in series. The working voltage of the oscillator can be adjusted by changing the value of the resistor. It should be noted that the oscillator may be further improved in frequency precision and stability by using a proper crystal.

In summary, the 353NB3C163T oscillator is a type of oscillator with wide application field and stable frequency and amplitude. It uses a quartz tuning fork to generate the frequency needed between 2.5MHz to 65MHz. Its resonance will cause the oscillation frequency to remain relatively stable. By changing the resistance of the capacitor, the working voltage can also be adjusted.Oscillators are widely used in radar system, mobile phones, etc.

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