Before revision: The advantages of this type of converter are high linearity combined with low cost, owed to the fact that most of the processing takes place in the digital domain and requirements for the analog anti-aliasing filter after the output can be relaxed .
After revision: The advantages of this type of converter are high linearity combined with low cost, owed to the fact that most of the processing takes place in the digital domain , which helps relax the requirements for the subsequent analog low-pass filter (for anti-aliasing image frequencies and suppressing high-frequency noise-shaping noise) .