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This is a crystal device that a crystal chip is enclosed in a package.
Crystal units can be classified into tuning fork crystal units, AT crystal units, or SAW resonators, depending on the type of crystal chip used. |
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A crystal oscillator is a crystal device that is able to output a specified frequency because a crystal oscillator and a crystal oscillation circuit (IC) are incorporated into a single package.
There are TCXO and VCXO etc., various kinds and there is Rubidium atomic oscillator. |
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A real time clock is a circuit or IC that generates digital data for times and dates, etc. from a reference clock. Usually, the reference clock is a 32,768kHz crystal unit. |
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It is an elemental device in
order to extract frequency range from the specific
frequency range. |
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Sensing devices convert physical quantities such as angular rate,temperature and pressure into electrical signals. |
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Optical device is a products using coating technology or crystal.
There are prism,filter, and OLPF etc. various products. |
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