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Method of generating a digital signal that is representative of match errors in an analog digital conversion system with the time interleaving, and an analog digital converter with time interleaving using same
Method of generating a digital signal that is representative of match errors in an analog digital conversion system with the time interleaving, and an analog digital converter with time interleaving using same
A method for generating a digital signal representative of the pairing error between the channels of an analog digital conversion system with time interleaving, and a method for suppressing the errors thus calculated and an analog digital conversion system with time interleaving using same. The method comprises determining a spectrum (11-12) of the digital signal as a function of a frequency response of the analog digital conversion system with time interleaving (CAN 10) to at least one analog calibration signal (IC), and generating a “comb” signal whose spectrum is composed of frequency lines kFs/N, where Fs is a sampling frequency and N a number of channels of the analog digital conversion system with time interleaving, and whose amplitude is dependent on the frequency response of the analog digital converter.
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