402F20412IAR

402F20412IAR application field and working principle

402F20412IAR are quartz oscillators usually used in applications in consumer and professional electronic products. The two main types of applications are frequency selection and timing control. Quartz crystals are also used as filters for nanofabricated quartz waveguides and surface acoustic wave (SAW) filters.

In frequency selection applications, the crystal acts as an LC resonator circuit. When the series capacitor of an LC circuit is formed of a quartz crystal, the capacitor is known as a varactor. The varactors used in these applications are typically very low in capacitance and resonance frequency, so they can be used to produce accurate frequencies by controlling the capacitance of the crystal.

In timing control applications, the crystal acts as a voltage-controlled oscillator (VCO). This type of oscillator is used for controlling the rate of timing in electronic devices, such as computers and digital clocks. The VCO requires the quartz crystal to be connected with a feedback loop to produce a steady tone.

Quartz crystals are also used as filters in nanofabricated waveguides and SAW filters. These filters are constructed by embedding quartz crystals in plastic or other material. The crystal acts as a medium for passing signals between the two points. The frequency and amplitude of the signal passing through the filter can be adjusted by controlling the thickness and size of the quartz crystal.

402F20412IAR are versatile and reliable crystals used in a wide variety of applications. Their low capacitance and resonance frequency make them ideal for frequency selection and timing control, while their use in filters makes them suitable for use in nanofabrication and SAW filter technology.