What Is A Ceramic Resonator

5 4 equivalent circuit for a ceramic resonator in the frequency range of fr f fa fig.

What is a ceramic resonator.

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. Equivalent resistance l1. The vibrate mechanically when an ac signal is applied to them. Ceramic resonators are made of lead zirconium titanate pzt and are easier to manufacture than crystal oscillators made out of fine cut quartz.

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. Quartz crystals are more accurate and temperature stable than ceramic resonators. On the left the crystal right the ceramic resonator. 5 5 impedance and phase characteristics for ceramic resonators.

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. Inner electrode capacitance fig. A typical ceramic resonator has three terminals. 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.

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. A ceramic resonator is an electronic component consisting of a piece of a piezoelectric ceramic material with two or more metal electrodes attached. The resonator or crystal itself has two connections. 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.

Many of the official arduino boards use a ceramic resonator not a crystal. Both ceramic resonators and quartz crystals work on the same principle. Ceramic resonators look similar. The ceramic resonators are not nearly as good as a crystal but they are good enough for serial and most other common tasks.