Submit Manuscript

Journal of Applied Sciences

Year: 2013 | Volume: 13 | Issue: 6 | Page No.: 948-951
Facebook Twitter Digg Reddit Linkedin StumbleUpon E-mail

Article Trend

Total views 371

Search

Authors

Farouq M. Al-Taweel

Keywords

Research Article

Cascaded Second Order Stages Adaptive Delta Sigma Modulation using OTAS

Farouq M. Al-Taweel
In this study, Proposed Cascaded Second order stages ADSM structure with single-bit quantization for the first stage and multi-bits for the rest of the stages provides better SNQR compared to the ordinary cascaded single stage ADSM structures. This paper proposes a unique two techniques of a cascaded second order ADSM system utilizing, adaptive quantization estimation and adaptive prediction estimation. The proposed system employs high Operational Transconductance Amplifier (OTA) having higher gain, enhanced performance and better sensitivity for the cascaded structure than normal ADSM. This new approach would achieve continuous time varying step size and high SQNR with oversampling ratios. Full system simulations are provided to illustrate the effect of linearity error quantization path for the cascaded structures.
PDF Fulltext XML References Citation

Leave a Comment

Your email address will not be published. Required fields are marked *