A crystal oscillator is an electronic circuit that uses the mechanical resonance of a quartz crystal to generate a highly stable and precise frequency. When an DC voltage is applied, the quartz crystal vibrates at its natural resonant frequency due to the piezoelectric effect, producing oscillations with minimal frequency drift.These oscillators are widely used in microcontrollers, microprocessors, clocks, communication systems, and RF circuits to provide accurate timing and synchronization. The circuit usually consists of the quartz crystal connected with capacitors and an amplifier to maintain continuous oscillation. Typical frequency ranges are from 1 MHz to 20 MHz for general applications, but higher frequencies are also achievable.Key advantages include:High stability over temperature and timeLow phase noise for clean signalsPrecision timing for digital circuitsCompact size and low power consumptionIn the image, the crystal oscillator is connected to a CPU or microprocessor, where it provides the clock signal essential for proper operation.#ElectronicsEducation #Digital Electronics.. MCG Technology™