{"id":2450,"date":"2022-10-28T18:01:56","date_gmt":"2022-10-28T16:01:56","guid":{"rendered":"https:\/\/www.jauch.com\/blog\/?p=2450"},"modified":"2022-11-09T09:59:40","modified_gmt":"2022-11-09T08:59:40","slug":"oscillator-or-quartz-crystal-how-to-find-the-right-component-for-your-application","status":"publish","type":"post","link":"https:\/\/www.jauch.com\/blog\/en\/oscillator-or-quartz-crystal-how-to-find-the-right-component-for-your-application\/","title":{"rendered":"Oscillator or Quartz Crystal? How to find the right component for your application"},"content":{"rendered":"\n

In developing an\nelectronic assembly, one of the steps involved includes choosing the\nappropriate frequency control product. The basic question at the outset is\nwhether to install a quartz crystal or an oscillator. To reach the right\ndecision, several parameters need to be considered. These include the many\ndifferent requirements of the application, the device, or the industry. In\naddition to space requirements, frequency stability, and expertise, development\ncosts also play a notable role. <\/p>\n\n\n\n

Quartz crystal or\noscillator? That is the question! In the following, we\u2019ll take a closer look at\nsituations when one component or the other is the better choice: <\/p>\n\n\n\n

When a quartz\ncrystal is the way to go<\/strong><\/h3>\n\n\n\n

\u201cA quartz crystal <\/a>is best suited when the developer wants to build their own electronic oscillator, allowing them to tune or optimize all the relevant parameters. This of course requires a certain amount of effort: The electronic oscillator has to be built and adapted to the resonator in order to ensure oscillation stability as well as cohesion over the entire operating temperature range,\u201d explains Product Manager Leonie Wei\u00dfer. Circuit components include, for example, capacitors, which must be selected so that the quartz crystal\u2019s specific load capacity is achieved. If this is not the case, considerable deviations from the specified nominal frequency may occur. The specifications for the quartz crystal must therefore be clearly defined in advance to avoid frequency deviations. <\/p>\n\n\n\n

\"\"<\/figure><\/div>\n\n\n\n

However, since quartz\ncrystals are less expensive than crystal oscillators, they are a better choice\nfor larger quantities. In addition, there must be sufficient space on the\ncircuit board: A piezoelectric crystal with circuitry requires more space than\na crystal oscillator. <\/p>\n\n\n\n

The perfectly\ncoordinated complete solution: The crystal oscillator<\/strong> <\/h3>\n\n\n\n

When using an oscillator<\/a>, all components of the internally installed circuitry are already perfectly matched. In contrast to a quartz crystal with circuit, the oscillator usually takes up less space. An oscillator always contains a frequency control component\u2014in our case, an quartz crystal. This is inserted into the Pierce circuit, which causes the quartz crystal to oscillate. <\/p>\n\n\n\n

\"Darstellung
Pierce circuit<\/figcaption><\/figure>\n\n\n\n

The oscillator\nis therefore the most space-saving alternative: Everything is compact and built\ninto one component, and the developer does not have to design a circuit around\nthe piezoelectric crystal. The component is particularly suitable for low\nvolumes because it eliminates the need for time-consuming optimization and\ntuning of circuit components. <\/p>\n\n\n\n

\"\"<\/figure><\/div>\n\n\n\n

Another advantage of the oscillator is that when using a quartz crystal, the ratio of area to thickness must not fall below a certain value. If this ratio is not maintained, it will have a negative effect on the electrical parameters. This means that low frequencies (below 10 MHz) can no longer be handled in smaller designs. This limitation does not apply to oscillators because they have an IC inside. The same applies to circuits with higher frequencies\u2014here, too, quartz crystals reach their physical limits more quickly. Due to the internal IC, compensations via temperature are also possible (TCXOs). This allows the developer more room to maneuver in order to meet the requirements of the respective application and its external influences. This leeway also allows a frequency stability of +-0.05 parts per million. At best, quartz crystals are specified with just under +-10 parts per million. <\/p>\n\n\n\n

Need help selecting the right frequency control component for your application? Please get in touch with us<\/a> so that we can find the right component for your application together.  <\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

In developing an electronic assembly, one of the steps involved includes choosing the appropriate frequency control product. The basic question at the outset is whether to install a quartz crystal or an oscillator. To reach the right decision, several parameters need to be considered. These include the many different requirements of the application, the device,<\/p>\n","protected":false},"author":6,"featured_media":2443,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[15],"tags":[211,318],"yoast_head":"\nOscillator or Quartz Crystal? 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