Offset switching to prevent locking in controlled oscillator analog-to-digital converters
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United States of America
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Mar 29, 2022
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N/A
app pub date -
Oct 16, 2020
filing date -
Oct 16, 2020
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Abstract
A controlled oscillator Analog-to-Digital Converter (ADC) includes an analog interface configured for receiving an analog differential input signal, and configured for providing a differential control signal; first and second controlled oscillators configured for receiving the differential control signal; and a frequency-to-digital converter having a first input coupled to an output of the first controlled oscillator, a second input coupled to an output of the second controlled oscillator, and an output for providing a digital output signal proportional to the analog differential input signal, wherein the analog interface or at least one of the first and second controlled oscillators is configured for receiving at least one disturb signal to prevent locking between the first and second controlled oscillators.
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