Quartz Crystals Vs. Ceramic Resonator

The Differences And Why A Crystal Oscillator May Be A Superior Choice

Quartz crystal resonators and ceramic resonators activate and work similarly as they both vibrate mechanically when an AC signal is applied to each respectively.

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The difference is that a quartz crystal resonator is made from a quartz crystal and a ceramic resonator is from ceramic components.

What is a Quartz Crystal?

Quartz Crystals are able to &#;oscillate&#; within the desired frequency with little power required to keep it activated. Crystals can be specified with a precise frequency stability and as the surrounding heat increases, the crystal oscillator is able to keep the frequency stability with minimal frequency change with a 10 PPM (parts Per Million or 0.001%) over -20 ~ +70°C. The tight stability makes crystal suitable for ZigBee/Bluetooth and other wireless applications.

Crystal oscillators can be found in everything from televisions to children&#;s toys that have electrical components.

What is a Ceramic Resonator?

A ceramic resonator works similar to a crystal. The ceramic resonator utilizes a frequency within the electrical component but unlike the crystal which has a frequency tolerance of 10~30 PPM , a ceramic resonator carries a 0.5% or 5,000 PPM frequency tolerance which is generally used in microprocessor applications where absolute stability is not important.

Here is an easy example to put this into perspective. The percentage difference is similar to an Olympic race. Milliseconds can be the difference between the gold or silver medals. But with an electronic component, the difference is more radical.

Also, crystals utilize hermetically sealed package so they would always be recommended over the ceramic resonators which are environmentally sealed so the crystal is recommended for wide temperature range or harsh environments.

Consider the ECSpressCON Quartz Crystal Oscillator in Product Design
ECSpressCON is considered the world&#;s most robust configurable, fast turn, quick delivery quartz crystal oscillator. Eric Slatten VP of ECS, Inc. International explains ECSpressCON in depth in the video below.

ECSpressCON &#; The World&#;s Most Configurable Oscillator

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&#;What is Crystal Resonator?
Crystal resonator is a passive component that generates stable frequency.
Below is figure 1 for crystal resonator&#;s structure.

&#;How can we activate crystal resonators?
We need the suitable oscillation circuit for the crystal resonators to generate stable frequency.
(Please refer to Figure 2 below for example of oscillation circuit.)
Oscillation circuits have the functions as below.
&#;It generates stable frequency by suitable amplifier circuit with resistance Rf.
&#;It enables crystal resonators to obtain the desirable frequency accuracy by matching between the load capacitances of the oscillation circuit and the crystal resonators.

We have matching test service to check the matching between your oscillator circuit and the crystal resonator and suggest the alternative circuit constant when necessary.

&#;Circuit Design
https://www.sii.co.jp/en/quartz/circuit-design/
&#;IC matching information.
https://www.sii.co.jp/en/quartz/ic-matching-information/
&#;Contact us
https://krs.bz/sii/m/quartz_inq_en