A bandpass sigma-delta modulator includes a first low pass sigma-delta modulator of a predetermined order and operative according to a predetermined transfer characteristic for producing a first output of an initial dynamic range. A second low pass sigma-delta modulator substantially similar to the first...http://www.google.fr/patents/US6111531?utm_source=gb-gplus-shareBrevet US6111531 - Parallel architecture for a bandpass sigma-delta modulator
Parallel architecture for a bandpass sigma-delta modulator
