Modulation of an analog signal into a digital representation thereof

摘要

A method and apparatus for modulating a signal into a digital representation thereof includes processing that begins by integrating a difference between an input signal and an analog feedback signal to produce an integrated signal. The processing then continues by quantizing the integrated signal to produce a quantized signal. The processing continues by generating a spectral shaping signal to compensate for non-linearities of the analog feedback signal. The processing further continues by injecting the spectral shaping signal into the quantized signal to produce a spectrally adjusted quantized signal. The processing further continues by converting the spectrally adjusted quantized signal into the analog feedback signal.