Implementation and method for a digital sigma-delta modulator

Details Implementation and method for a digital sigma-delta modulator Implementation and method for a digital sigma-delta modulator

1995-08-03

1996-12-03

Gaffin, Jeffrey A.

Coded data generation or conversion

Analog to or from digital conversion

Digital to analog conversion

341143, H03M 300

Patent

active

055812538

ABSTRACT:
Described herein is a digital sigma-delta modulator and method for converting a multi-bit digital input signal to a 1-bit digital output signal. The digital sigma-delta modulator performs a noise shaping filter function for a digital-to-analog circuit. A series of cascaded integration stages are implemented with a plurality of multiplexed adders which perform the integration functions.

REFERENCES:
patent: 5144308 (1992-09-01), Norsworthy
patent: 5196850 (1993-03-01), Duffy et al.
patent: 5414424 (1995-05-01), Cabler

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