Title :
Second-order delta-sigma modulator with two 1 bit quantisers
Author :
Tan, Nusret ; Eriksson, Sandra
Author_Institution :
Dept. of Electr. Eng., Linkoping Univ., Sweden
fDate :
7/30/1992 12:00:00 AM
Abstract :
A new structure of a second-order delta-sigma modulator with two 1 bit quantisers is presented. The main advantage is the 6 dB reduction of total output noise power compared with a conventional second-order delta-sigma modulator. The amplifier saturation problem can also be eased. These are confirmed by a system level simulation program. The switched-capacitor implementation is also considered.
Keywords :
analogue-digital conversion; delta modulation; integrating circuits; modulators; switched capacitor networks; 1 bit quantisers; amplifier saturation; integrators; second-order delta-sigma modulator; switched-capacitor implementation; system level simulation program; total output noise power;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19920944
