Title :
Signal adaptive control architecture for ΔΣ modulator design
Author :
Li, Q. ; Van der Spiegel, J. ; Laker, K.R.
Author_Institution :
Dept. of Electr. Eng., Pennsylvania Univ., Philadelphia, PA, USA
fDate :
4/15/1999 12:00:00 AM
Abstract :
A signal adaptive control architecture for a second-order ΔΣ modulator design is presented. This architecture effectively reduces the power dissipation and the distortion of the first stage in the modulator. The function of this architecture is to switch off the DAC feedback signal to the first stage during some iterations, and to compensate the signal at the second stage, in an adaptive manner
Keywords :
adaptive control; adaptive signal processing; delta-sigma modulation; ΔΣ modulator design; DAC feedback signal; compensation; harmonic distortion; power dissipation; signal adaptive control architecture;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19990452
