What Is A Ceramic Resonator

In those list of resonators the two mainly used materials are quartz crystal and ceramic making ceramic resonator quartz crystal is used in crystal oscillator and ceramic is used in ceramic resonator both of them have the same aim of generating an oscillation frequency by vibrating.

What is a ceramic resonator.

Equivalent resistance l1. A typical ceramic resonator has three terminals. Both ceramic resonators and quartz crystals work on the same principle. A ceramic resonator is an electronic component consisting of a piece of a piezoelectric ceramic material with two or more metal electrodes attached.

The vibrate mechanically when an ac signal is applied to them. A ceramic resonator is often used in place of quartz crystals as a reference clock or signal generator in electronic circuitry due to its low cost and smaller size. When connected in an electronic oscillator circuit resonant mechanical vibrations in the device generate an oscillating signal of a specific frequency like the similar quartz crystal they are used in oscillators for purposes such as generating. However the ceramic resonator has the advantage that it is a much lower cost electronic component and is therefore more applicable to mass produced rf circuit design.

The ceramic resonator itself is a basic two terminal electronic component which has many similarities to a single crystal although the level of performance is not as high. There are various resonators that are used for an immense number of applications in the field of electronics. Ceramic resonators look similar. In terms of application ceramic resonators are used in microprocessors where their frequency stability is not important and crystal oscillators are used for more precise time based applications.

5 4 equivalent circuit for a ceramic resonator in the frequency range of fr f fa fig. 5 3 electrical equivalent circuit for a ceramic resonator fig. Many of the official arduino boards use a ceramic resonator not a crystal. Quartz crystals are more accurate and temperature stable than ceramic resonators.

Inner electrode capacitance fig. The two main terminals are at each wide side of a thin ceramic material while the middle terminal is usually connected to the thin side and may be grounded or used to tap signal into the rest of the oscillator circuit. On the left the crystal right the ceramic resonator. The ceramic resonators are not nearly as good as a crystal but they are good enough for serial and most other common tasks.