445A35H12M00000

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Crystals

Crystals are major components in many electronic circuits and devices; they serve a variety of functions including filtering, frequency generation, frequency control and timing. The 445A35H12M00000 crystal is specifically designed for oscillator applications and its working principle needs to be better understood in order for it to be utilised correctly.

The 445A35H12M00000 crystal is a quartz crystal characterized by a resonant frequency of 12 MHz, series resistance of 375 Ohms, and a load capacitance of 20pF. It is made of a quartz crystal plate or a vibrating element and two electrodes on the plate that allow the electric field to couple the oscillation of the crystal plate. The frequency at which the oscillation occurs is called the resonant frequency and is determined by the properties of the crystal. It is possible to adjust the load capacitance to change the capacitor’s resonant frequency, provided the crystal does not break down.

Quartz crystals are used for crystal oscillator applications because of their low cost, temperature stability, and the fact that they can generate frequencies in the kHz and MHz range. The 445A35H12M00000 crystal is one such oscillator crystal and is widely used in several types of electronic devices from oscilloscope probes to RF amplifiers, from precision clocks to PLL ICs (Phase Locked Loops Integrated Circuits).

Crystal oscillators convert direct current (DC) voltage into a specific frequency, typically a few hundred kHz up to a few MHz. This is achieved by means of resonance, in which the crystal and the surrounding capacitors vibrate together at the same frequency. The capacitors are connected to the electrodes of the crystal, and connected to the variable DC voltage source. As the source voltage increases, the crystal oscillator frequency increases as well. In a typical circuit, the output is a square wave whose frequency is a function of the resonant frequency of the crystal and the input voltage.

The 445A35H12M00000 crystal can also be used in voltage-controlled oscillator (VCO) applications. In such applications, when a DC voltage is applied to the crystal, it results in a change in the oscillator’s frequency. This is mainly used for phase-shift modulation in which the frequency of the output from the crystal oscillator is varied by changing the DC voltage. The voltage-controlled oscillator has a wide range of applications, from electronic motor control to communication systems, etc.

Crystal oscillators are used in numerous applications where a reliable and exact frequency is required, such as in quartz clocks, microwave ovens, television sets, industrial machinery and other electronics. The 445A35H12M00000 crystal is particularly useful as it has a resonant frequency of 12 MHz, which can be used to generate a wide range of frequencies. Moreover, its low cost makes it a popular choice for many applications.

In summary, the 445A35H12M00000 crystal is a quartz crystal designed for use in various oscillator applications. It can be used in either crystal oscillator or voltage-controlled oscillator applications and its resonant frequency of 12 MHz is suitable for generating a wide range of frequencies. Furthermore, its low cost makes it an ideal choice for many applications.

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