Electronic device for digital to analog conversion of a digital input stream into a differential analog output

An electronic device for digital to analog conversion of a digital input stream into a differential analog output, said device implementing a filtering of said digital input stream based on a finite impulse response filter comprising:

• a delay line taking as an input said digital input stream, said delay line implementing a number of successive delay cells, each delay cell outputting a corresponding delayed version of the digital input stream to be processed by a corresponding coefficient of said filter;
• for at least one coefficient of said finite impulse response filter, a number of current sources comprising current sources, named positive current sources, contributing to a positive component of said differential analog output and current sources, named negative current sources, contributing to a negative component of said differential analog output, the positive component contribution of the positive current sources and the negative component contribution of the negative current sources being each proportional to said coefficient according to a same proportionality factor for implementing said coefficient,
• characterized in that the positive component contribution of the positive current sources and the negative component contribution of the negative current sources are reconfigurable between predetermined values for allowing the value of the coefficient to be reconfigurable.