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石英晶体振荡器,简称晶振。它是利用具有压电效应的石英晶体片制成的,石英晶体在电路中主要利用其 Q 值高、性能稳定可靠、不受外界气候变化的影响的优点,来稳定振荡电路的频率或代替 LC 谐振回路,做选频元件。广泛应用于:石英钟表的时基振荡器、彩色电视机中的色副载波振荡器、数字电路中的脉冲信号发生器及各种遥控器等电路中,其外形、电气图形符号及文字符号如图1所示。一、晶振型号的识别
Quartz crystal oscillator, referred to as crystal. It is made of quartz crystal with piezoelectric effect. Quartz crystal mainly uses the advantages of high Q value, stable and reliable performance and no influence of external climate change in the circuit to stabilize the frequency of the oscillation circuit or replace the LC Resonance circuit, make frequency selection components. Widely used in: quartz watch time base oscillator, color TV color subcarrier oscillator, digital circuit pulse signal generator and various remote control circuit, the shape, electrical symbols and symbols, such as text symbols Figure 1 shows. First, the crystal model identification