- Dan P. Scholnik
J. O. Coleman
Joint Shaping of Quantization and Hardware-Mismatch
Errors in a Multibit Delta-Sigma DAC
A recent sigma-delta modulator architecture
incorporates spectral shaping of hardware-mismatch
errors through redundancy introduced by embedding the
input/output subspace in a higher-dimensional space
for loop operation. Here basic design issues for the
key vector quantizer and matrix-impulse-response loop
filter are explored. A simple design example and
- The alpha = 0.5 labels in figure 3 are incorrect. Actually alpha
= 2/3 was used, as indicated in the text.
- PREPRINT in
Presented at the 2000 Midwest Symp. on Circuits and
Systems, Lansing MI, August 2000.
- DATE OF ENTRY:
August 2000. Updated to annotate preprint July 2004.