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Crystal Oscillators for Industrial Applications |
| Crystal Oscillators for Industrial Applications |
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| The degree of frequency stability and level of quality required of crystal oscillators differs according to the application. Infrastructure systems such as cellular phone base stations and optical transmission systems require very stable, high-quality frequency sources. The oscillators used in these applications are known as oscillators for industrial applications. |
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Voltage Controlled Crystal Oscillators (VCXOs):
Oscillators in which output frequency can be varied using an external control voltage. |
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Digital Temperature Compensated Crystal Oscillators (DTCXOs):
Oscillators in which the voltage applied to a VCXO is controlled using a voltage control circuit and temperature is digitally compensated to give high stability of the oscillation frequency. |
| 3. |
Oven Temperature Compensated Crystal Oscillators (OCXOs):
Oscillators in which the temperature of important components is controlled by a constant temperature oven to give high stability of oscillation frequency. |
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Base stations for mobile phones |
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Broadcasting stations / transmission sites |
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Optical transmission systems |
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Measuring equipment |
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| Structure and Characteristics |
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 Frequency Stability Range of Crystal Oscillators |
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| Voltage Controlled Crystal Oscillators (VCXOs) |
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Digital Temperature Compensated Crystal Oscillators (DTCXOs) |
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| Related Information |
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