445I35G20M00000

445I35G20M00000 application field and working principle

445I35G20M00000 Crystals, also known as quartz oscillators, are used in a wide range of applications and are a key component in the miniature timing and frequency control circuit. Their main advantages come from the internal crystal structure, which allows the crystal to oscillate with very stable frequency, low cost and high reliability.

445I35G20M00000 Crystals are mainly used in digital, electronic and microwave circuits. The wide frequency range covers from 10KHz to 12GHz, with special high frequency varieties up to 170GHz. Typical applications include radio communications, clock and timing, frequency control, and precision measurement and other applications.

Crystal oscillators are composed of quartz oscillator and oscillator circuit. The quartz resonator itself is the center of the crystal oscillator. Quartz is a piezoelectric material and the quartz crystal is cut and processed into a specific shape and size. The thickness of the quartz crystal rod is tens of micrometers in the center, and the quartz rod body is covered with metal electrodes on both sides to form a quartz oscillator. When a voltage is applied to the electrodes, a mechanical oscillation is created to excite the crystal lattice vibration.

The oscillator circuit is connected to the quartz oscillator and driven by the oscillator to realize the function of frequency conversion, parameter matching, and oscillation stabilization. The output noise of the oscillator is also reduced accordingly. The working principle of the oscillator is mainly shown in the equivalent circuit diagram of the crystal oscillator.

The core of the circuit is the equivalent electronic model of the quartz resonator, which is composed of a series inductor L, a parallel capacitance C, and a parallel resistance R2 called shunt resistance. The inductance L and the capacitance C form an LC circuit, which resonates around the resonance frequency. The resistance R2 plays the role of stabilizing the oscillation amplitude.

The value of capacitor C2 and resistor R1 is determined by the equivalent capacitance and equivalent resistance of the quartz crystal. When the external power supply is connected to the crystal oscillator through the two external capacitors C1 and C2, the LC intermediate frequency circuit will oscillate at a certain frequency, and the diode rectifier circuit will filter the alternating current signal to provide stable output power.

In addition, 445I35G20M00000 Crystals have wide temperature, voltage and frequency ranges, and can meet the needs of various application fields with their excellent performance and high precision. With the application of 445I35G20M00000 crystals, precision and stability can be improved, clock signal synchronization accuracy can be increased, the reliability of communication systems can be increased, and signal distortion during signal transmission can be reduced.