论文信息 - Tunable bandpass sigma delta modulators

Tunable bandpass sigma delta modulators

This paper examines different designs for tunable bandpass sigma delta modulators. Both discrete and continuous time implementations are considered. Comparison between different tuning methods is demonstrated using MATLAB simulations. Results show that discrete time modulators using variable coefficients are best suited for tunability

M. Dessouky | H.F. Ragai | M.A. El-Nozahi

[1] Willy Sansen,et al. A high-frequency and high-resolution fourth-order /spl Sigma//spl Delta/ A/D converter in BiCMOS technology , 1994 .

[2] Willy Sansen,et al. A high-frequency and high- resolution fourth-order sigma-delta A/D converter in BICMOS technology , 1993 .

[3] A. Sedra,et al. Quadrature bandpass /spl Delta//spl Sigma/ modulation for digital radio , 1997 .

[4] S. Jantzi,et al. A fourth-order bandpass sigma-delta modulator , 1993 .

[5] Richard Schreier,et al. Bandpass sigma-delta modulation , 1989 .

[6] A. Hairapetian,et al. An 81 MHz IF receiver in CMOS , 1996, 1996 IEEE International Solid-State Circuits Conference. Digest of TEchnical Papers, ISSCC.

[7] W. Snelgrove,et al. Design and implementation of a tunable 40 MHz-70 MHz Gm-C bandpass /spl Delta//spl Sigma/ modulator , 1997 .

[8] H. V. Sorensen,et al. An overview of sigma-delta converters , 1996, IEEE Signal Process. Mag..

[9] L. Fanucci,et al. Tunable bandpass sigma delta modulator using one input parameter , 2003 .

[10] Joseph F. Jensen,et al. Architecture, design, and test of continuous-time tunable intermediate-frequency bandpass delta-sigma modulators , 2001 .