A 15 b 30 kHz bandpass sigma-delta modulator
作者： L. Longo , B.-R. Horng
DOI: 10.1109/ISSCC.1993.280038
关键词: Bandwidth (signal processing) 、 Delta modulation 、 Delta-sigma modulation 、 Sine wave 、 Active filter 、 Dynamic range 、 Electronic engineering 、 Band-pass filter 、 Physics 、 Fast Fourier transform
摘要: The authors introduce a bandpass architecture and implementation that achieves 15-b dynamic range over 30-kHz bandwidth centered at 1.8 MHz using 7.2-MHz sampling frequency operating on single 5-V supply. A z-domain representation of the fourth-order modulator is shown. It made up filters with infinite Qs as opposed to integrators used in lowpass modulators. A/D (analog-to-digital) converter performance evaluated by applying 1.8-MHz sinewave, windowing one-bit digital output Dolph-Chebyshev window, performing 65536-point FFT (fast Fourier transform). >
sci-hub.se 参考文章(4)
S.A. Jantzi, M. Snelgrove, P.F. Ferguson, A 4th-order Bandpass Sigma-delta Modulator custom integrated circuits conference. ,(1992) , 10.1109/CICC.1992.591320
R. Schreier, M. Snelgrove, Bandpass sigma-delta modulation Electronics Letters. ,vol. 25, pp. 1560- 1561 ,(1989) , 10.1049/EL:19891048
S.A. Jantzi, W.M. Snelgrove, P.F. Ferguson, A fourth-order bandpass sigma-delta modulator custom integrated circuits conference. ,vol. 28, pp. 282- 291 ,(1993) , 10.1109/4.209995
G. Troster, P. Sieber, K. Schopp, A. Wedel, E. Zocher, J. Arndt, H.J. Dressler, H.-J. Golberg, W. Schardein, An interpolative bandpass converter on a 1.2 mu m BiCMOS analog/digital array symposium on vlsi circuits. pp. 102- 103 ,(1992) , 10.1109/VLSIC.1992.229271