ADC ADC Apparatus for storing frequency error of Analog-to-Digital Converter and apparatus for correcting frequency error of Analog-to-Digital Converter

摘要

The frequency error correction device of the ADC according to the present invention includes: a frequency error storage unit in which a peak frequency and a frequency error value corresponding to the peak frequency are stored; A time-frequency conversion unit that performs time-frequency conversion on the output signal of the ADC as a continuous signal is input to the ADC; And detecting a peak frequency from the output values of the time-frequency conversion unit, obtaining a frequency error value corresponding to the detected peak frequency from the frequency error storage unit, and detecting the detected peak frequency and the obtained frequency error value. It characterized in that it comprises a frequency error correction unit for calculating the correction frequency using.