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Classification of Quartz Crystal Oscillators

Release date:2018-12-11

    Crystal Oscillator is also divided into passive crystals and active crystals. Types of.

    The passive crystal oscillator is different from the English crystal name of the active crystal oscillator (resonance). The passive crystal oscillator is crystal, and the active crystal oscillator is called oscillator.

    Passive crystal oscillators need to be able to generate an oscillating signal by means of a clock circuit, and they cannot oscillate themselves, so the term "passive crystal oscillator" is not accurate;

    The active crystal is a complete resonant oscillator. Quartz crystal oscillators and quartz crystal resonators are both electronic devices that provide a stable circuit frequency.

    Quartz crystal oscillators use the piezoelectric effect of quartz crystals to oscillate, while quartz crystal resonators work with quartz crystals and built-in ICs.

    The oscillator is directly used in the circuit. When the resonator is working, it usually needs to provide 3.3V to maintain the operation. The oscillator has one more important technical parameter than the resonator: the resonant resistor (RR), which has no resistance requirements.

    The size of the RR directly affects the performance of the circuit, so this is an important parameter for competition among various businesses.