Reference clock frequency correction by mixing with digitally-controlled low-frequency compensation signal
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United States of America
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Nov 26, 2024
Grant Date -
Oct 19, 2023
app pub date -
Apr 13, 2023
filing date -
Apr 13, 2023
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Abstract
A system for reference clock frequency correction is described. The system comprises a compensation module configured to (i) receive, as input, an oscillator signal and one or more control signals, (ii) generate a compensation signal based on the oscillator signal and the one or more control signals, wherein the generated compensation signal is a discretized sinusoidal signal having a controllable frequency, and (iii) output the generated compensation signal. The system further comprises a mixer block configured to (i) receive, as input, the generated compensation signal and the oscillator signal, and (ii) generate an output clock signal by mixing the generated compensation signal with the oscillator signal. A soft-switching method to reduce the effect of quantization noise is further described.
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