Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Crystals Application and Working Principle

Crystals are widely used in various applications, from timing applications in monitors and appliances, to microwave frequency synthesisers. Crystals used in these applications are usually classified as frequency control crystals, resonator crystals and XY crystal oscillators.

ABL-20.000MHZ-B4Y-T

The ABL-20.000MHZ-B4Y-T is a frequency control crystal that is used for oscillator and filter applications. It has a centre frequency of 20.000 MHz and a tolerance of ±50 ppm (parts per million). The oscillator has a low current consumption of 1.3 mA and is suitable for a wide range of operating temperatures, from -40°C to +85°C.

Application Field

The ABL-20.000MHZ-B4Y-T can be used in a variety of applications. The crystal can be used as a clock oscillator in watches, electronic meters, electronic modules and remote sensors. It can also be used as a filter in mobile phones, wireless communication devices and navigation systems.

Working Principle

Crystals are made from quartz, a piezoelectric material. When an electric voltage is applied to a quartz crystal, its quartz element vibrates at an extremely stable frequency. The frequency of the crystal is determined by the shape of the crystal, its size, and the mass of the electrodes attached to its ends. The crystal vibrates at its resonant frequency exactly when a certain combination of electrical and mechanical conditions is achieved. This combination is referred to as the "load capacitance".

The ABL-20.00MHZ-B4Y-T crystal works by setting up an AC electric field across its quartz element. When a voltage is applied to the crystal, an electric field is set up between the two electrodes and this pushes the quartz molecules back and forth. The resonant frequency of the crystal is determined by its physical properties, such as its size, shape and mass of the electrodes.

The frequency of the ABL-20.00MHZ-B4Y-T is controlled by adjusting the load capacitance. This is done by connecting an external capacitor across the two electrodes of the crystal. When the two electrodes are connected with a capacitor, the load capacitance and the resonant frequency changes. The frequency of the crystal is then controlled by varying the value of the load capacitor.

The ABL-20.00MHZ-B4Y-T is widely used in various applications due to its low current consumption, wide operating temperature range and good frequency stability.

The specific data is subject to PDF, and the above content is for reference