Ceramic Resonator Circuit Design

There are various resonators that are used for an immense number of applications in the field of electronics.

Ceramic resonator circuit design.

Unlike rc or lc circuits ceramic resonators utilize mechanical resonance. 5 5 impedance and phase characteristics for ceramic resonators fig. This means the resonator is not basically effected by external circuits or by. 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.

The resonant frequency is determined by the substrate s thickness. The most common oscillator circuit for a ceramic resonator is a colpitts circuit. Although the basic configurations of the circuit is the same as that of a crystal controlled oscillator the difference in mechanical q results from a. Oscillating frequency may drift depending upon the controlling ic and or external capacitors c 1 and c 2 used in the circuit design.

Because its operation is similar to a crystal it can be used in the same oscillator configurations. Changes drifts in oscillating frequency. 5 3 electrical equivalent circuit for a ceramic resonator fig. The design of the circuit varies with the application and the ic to be used etc.

Although the basic configuration of the circuit is the same as that of a crystal controlled oscillator the difference in mechanical q results from a. Our ceramic resonator filters are designed with high q resonators that provide narrow passbands with low insertion loss ranging from 0 9 db to 3 0 db. Product lineup technical reference application support documents pdf. A ceramic resonator is an electronic component consisting of a piece of a piezoelectric ceramic material with two or more metal electrodes attached.

The design of the circuit varies with the application and the ic to be used etc. Ceramic resonators ceralock ceramic resonators ceralock are made of high stability piezoelectric ceramics that function as a mechanical resonator. Ceralock find a broad range of applications such as automotive electronics communications personal computing and medical healthcare equipment. Low price non adjustable ceramic resonators are mass produced resulting in low cost high stability and reliability.

For example murata offers the ceralock series ceramic resonators. The resonators should not be operated beyond the operating temperature range specified in the catalog. The ceramic resonator is half the size of comparable devices. 5 6 spurious characteristics for a typical ceramic resonator csb455e fig.

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. 5 4 equivalent circuit for a ceramic resonator in the frequency range of fr f fa fig. Token standard resonator is adjusted with our standard measuring circuit. A ceramic resonator s equivalent electric circuit is identical to a quartz crystal.