DUAL-FREQUENCY-OUTPUT CRYSTAL CONTROLLED OSCILLATOR
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United States of America Patent
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Issued Date -
Aug 24, 2017
app pub date -
Jan 9, 2017
filing date -
Feb 22, 2016
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Abstract
A dual-frequency-output crystal controlled oscillator includes a crystal resonator, an oscillator circuit, a first output terminal, a second output terminal, and a selection circuit. The crystal resonator includes an input terminal for measurement and an output terminal for measurement. The oscillator circuit is configured to amplify an output of the crystal resonator; a first output terminal configured to output a first frequency based on an output from the oscillator circuit. The second output terminal is configured to output a second frequency lower than the first frequency based on the output from the oscillator circuit. The selection circuit is configured to turn on/off an output of the first frequency. The input terminal for measurement is disposed such that a distance between the input terminal for measurement and the second output terminal is longer than a distance between the input terminal for measurement and the first output terminal.
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