Crystal Oscillator is difficult to manufacture while the ceramic resonator are easy to manufacture. Material Used - Crystal Oscillator is made up of Quartz as the piezoelectric resonator material while Ceramic resonators are made of Lead Zirconium Titanate (PZT), which is known as high stability piezoelectric ceramic material.Capacitor Dependency - Resonators may have internal capacitors or need external ones sometimes while the Oscillator needs external capacitors and their value depends on what crystal is designed to work with.Quartz has a 0.001% frequency tolerance, while PZT has a 0.5% tolerance. Oscillators are more sensitive than the resonators, the sensitivity can be compared in terms of radiation. Crystal oscillator has low ESD (Electrostatic Discharge) tolerance while the ceramic resonator has a high ESD tolerance. Tolerance & Sensitivity - The Crystal Oscillator has less tolerance against shock & vibration while the ceramic resonator has a high tolerance comparatively.For a Quartz Crystal Oscillator, the output characteristics depends on the vibration mode and angle at which the crystal is cut while in resonator mainly the thickness matters. they are highly stable even with changes in temperature and the ceramic resonator have a little more dependency on temperature then Crystal Oscillator. The Crystal Oscillator has very low dependency on temperature i.e. Effect due to Parameters - For Ceramic resonator, the thickness of the ceramic material would determine the output resonant frequency while for Crystal Oscillators the resonant frequency output depends on the size, shape, elasticity & speed of sound in the material.The accuracy for the oscillator is 10ppm-1000ppm while for the resonator is 0.1% - 1%. In terms of output frequency accuracy, Crystal Oscillator provides much more accurate output than the Ceramic resonator for which parameters like temperature are a sensitive element. Output - Crystal Oscillator provides high stability frequency output and the Ceramic resonator also provides stability output not that good as compared to Crystal Oscillator.Frequency Range - The Crystal Oscillator has much high Q factor than that of Ceramic Resonator due to which Crystal Oscillator has a frequency range of 10 kHz – 100 MHz range while the frequency range of ceramic resonator varies from 190 kHz – 50 MHz.Though they both have the same working procedure & generate frequency oscillation as output, they have some difference in properties due to which the oscillator has replaced resonator in many cases, which are: The inverse concept is used in case of inverse Piezoelectric effect. ceramic and the oscillating voltage is then attached to the electrodes as output. When the resonator is working, the mechanical vibrations produce an oscillating voltage due to the piezoelectric material i.e. The circuit for the resonator is similar to that of Crystal Oscillator and is as shown below: The material can have two or more electrode which when connected to an oscillator circuit gets mechanical vibration & as a result an oscillating signal of a specific frequency is generated. Similar to the Crystal Oscillator, Ceramic Resonator is also an electronic circuit or a device used to generate an output of oscillation frequency with the help of Ceramic as a resonating piezoelectric material. Learn more about Quartz crystal and crystal oscillator here. The symbol & circuit of a crystal oscillator is as shown below: The resonator circuit uses a crystal to generate the oscillation, led to the name as Crystal Oscillator. The crystal when vibrates, it acts like a resonator & as a result generates an oscillated frequency. Similarly, a crystal oscillator is an electronic circuit or device which is used to generate a stable frequency with the help of a crystal instead of a tuned circuit. But they two have some differences too, which separates them & as a result, they have different applications.Īn oscillator is a circuit that generates frequency with the help of a tuned circuit & that generated frequency is known as oscillating frequency. Both of them have the same aim of generating an oscillation frequency by vibrating when an input voltage is given to them. Quartz crystal is used in Crystal Oscillator and Ceramic is used in Ceramic Resonator. In those list of resonators, the two mainly used materials are quartz crystal and Ceramic (making Ceramic Resonator). There are various resonators that are used for an immense number of applications in the field of Electronics.
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