Resonator-based open-loop timing signal generation
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United States of America Patent
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Oct 1, 2020
Grant Date -
Oct 1, 2020
app pub date -
Mar 28, 2019
filing date -
Mar 28, 2019
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Abstract
Systems, methods, and circuitries are provided for generating timing signals with a resonator-based open-loop oscillator circuitry. In one example, a system that generates a timing signal based on a target signal includes a plurality of oscillator units configured to generate a respective plurality of oscillator signals. Each oscillator unit includes a resonator that operates in an open-loop mode to generate a resonator signal having a resonator frequency. The resonator signal is used by core circuitry to generate a respective oscillator signal having a respective oscillator frequency. The resonator frequencies of the resonators in the plurality of oscillator units are different from one another. The system also includes a selector circuitry configured to select one of the plurality of oscillator units based on the target signal and provide a selected oscillator signal generated by the selected oscillator unit as the timing signal.
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