DROOP-FREE QUASI-CONTINUOUS RECONSTRUCTION FILTER INTERFACE

摘要

A reconstruction filter is described. An input is configured to receive an output signal from a digital to analog converter (400). An input sampling circuit (402) is operative to store a sample of the output signal from the digital to analog converter (400). An input pulse generating switch (404) that generates a pulse, the energy of the pulse being determined by the sample of the output signal from the digital to analog converter (400). An amplifier (410) receives the pulse at an amplifier input and provides an output signal at an amplifier output so that an output signal is produced that reduces distortion caused by imperfections in digital to analog converter (400).