Patent ID: 7420493

Claim:
A dynamically-controllable delta-sigma modulating device for providing a range of output amplitudes to at least one of an analog-to-digital converter and a digital-to-analog converter, the modulating device comprising: a plurality of summing circuits disposed serially; a quantizer block disposed after a last of the plurality of summing circuits, the quantizer block having a feedback loop to each summing circuit of said plurality of summing circuits; a plurality of integrator circuits, each of the plurality of integrator circuits being disposed between successive summing circuits of said plurality of summing circuits and between the last of the plurality of summing circuits and said quantizer block; a first plurality of multiplier circuits, each of the first plurality of multiplier circuits being disposed between each of the plurality of integrator circuits and an adjacent summing circuit of said plurality of summing circuits and between a last of said plurality of integrator circuits and said quantizer block, each multiplier circuit of said first plurality of multiplier circuits having a first dynamically-scalable coefficient; a first resonator feedback loop providing a first resonator feedback via a first resonator coefficient multiplier circuit having a second dynamically-scalable coefficient; and a second resonator feedback loop providing a second resonator feedback via a second resonator coefficient multiplier circuit having a third dynamically-scalable coefficient; wherein each of the dynamically-scalable coefficients can be altered to provide a desired noise transfer function within a band of interest.