AES E-Library

Design of Single-bit Noise-Shaping Loops with High-Order Loop Filters

A procedure is given for designing stable sigma-delta modulators with high-order discrete-time loop filters. An unusual loop topology with distributed feedback from the quantizer output to intermediate nodes in the loop filter is described and compared to more conventional loops. The concept of signal-dependant quantizer gain is explored and several nonlinear stabilization strategies are presented to insure unconditional stability. Design examples for both A/D and D/A loops are given.

Authors: Adams, Robert W.; Ferguson Jr., P. F.; Gansesan, A.
Affiliation: Analog Devices Semiconductor, Wilmington, MA
AES Convention:89 (September 1990) Paper Number:2974 Import into BibTeX
Subject:Sigma-Delta Converter Technology

Click to purchase paper or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!

This paper costs $20 for non-members, $5 for AES members and is free for E-Library subscribers.

Learn more about the AES E-Library

E-Library Location: (CD aes11)   /pp8690/pp9009/3057.pdf

Start a discussion about this paper!