What is the natural resonant frequency of a crystal oscillator?

The natural resonant frequency of a crystal oscillator refers to the specific frequency at which the crystal vibrates when energized. This characteristic frequency is determined by the physical properties and dimensions of the crystal. In essence, the crystal oscillates at its natural resonant frequency, and this frequency is typically very stable and precise, which is why crystal oscillators are widely used in timing applications such as in watches and communication devices.

The term "natural resonant frequency" specifically indicates that this frequency is inherent to the crystal's physical design and material properties. This stability and precision are essential for applications needing consistent timing and frequency generation, which is a core purpose of crystal oscillators in electronic circuits. The other terms listed, while they may relate to aspects of frequency in electronic components, do not accurately describe this inherent characteristic of crystal oscillators specifically.