Method and device for correcting TDC stepping based on frequency-to-voltage circuit

• Main Author: JIAN JUNJIE
• Format: Patent
• Language: Chinese; English
• Published: 25.04.2023
• Subjects: AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATIONOF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES; BASIC ELECTRONIC CIRCUITRY; ELECTRICITY; HOROLOGY; PHYSICS; TIME-INTERVAL MEASURING

The invention discloses a method and device for correcting TDC stepping based on a frequency-to-voltage circuit, and the method comprises the following steps: generating N second time-to-digital converters based on the copying of K first time-to-digital converters, enabling the N second time-to-digital converters to be connected for oscillation in a negative feedback mode through path control, and outputting an oscillation frequency pulse; the frequency-to-voltage circuit converts the oscillation frequency pulse into voltage and outputs converted voltage, and the voltage control circuit compares the converted voltage with reference voltage, determines control voltage and outputs the control voltage to the first time-to-digital converter and the second time-to-digital converter; after the phase-locked loop circuit starts to work, the voltage control circuit enables the conversion voltage to be equal to the reference voltage through the control voltage and the second time-to-digital converter, and therefore the