A new Mismatch cancelation for Quadrature Delta Sigma Modulator

alireza shamsi

Volume 3, Issue 2 , May 2020, , Pages 196-204

http://dx.doi.org/10.22111/ieco.2019.29632.1167

Abstract
  This paper proposes a new mismatch cancelation technique for quadrature delta-sigma modulators (QDSM). In this approach, a high speed and simple structure dynamic element matching (DEM) based on homogenization and time-division (HTD) is designed. In addition, I and Q digital-to-analog converters (DACs) ...  Read More

Electronics
Reconfigurable CT QDSM with mismatch shaping dedicated to multi-mode low-IF receivers

alireza shamsi

Volume 2, Issue 3 , July 2019, , Pages 257-264

http://dx.doi.org/10.22111/ieco.2019.28430.1132

Abstract
  A reconfigurable third-order multi-bit continuous-time quadrature delta-sigma modulator (CT-QDSM) with mismatch error correction is reported in this paper. This modulator is designed for a tri-mode WLAN/WCDMA/GSM Low-IF (Intermediate Frequency) receiver. A three-bit quantizer is utilized to achieve the ...  Read More