METHOD FOR PROCESSING A DIGITAL SIGNAL IN A DIGITAL DELTA-SIGMA MODULATOR, AND DIGITAL DELTA-SIGMA MODULATOR THEREFOR

摘要

A digital delta-sigma modulator including a signal input for receiving N-bit digital samples, digital filter means connected to the signal input for performing add/subtract and integration operations using redundant arithmetic encoding to give filtered digital samples, and quantization means for performing a non-exact quantization operation to give n-bit output digital samples, where n is less than N. The input of the quantization means is connected within the digital filter means.