DocumentCode
2178176
Title
Bandpass sigma-delta modulation using frequency translation
Author
Tao, Hai ; Khoury, John M.
Author_Institution
Dept. of Electr. Eng., Columbia Univ., New York, NY, USA
Volume
1
fYear
1997
fDate
3-6 Aug 1997
Firstpage
297
Abstract
A bandpass sigma-delta modulation Analog-to-Digital (A/D) converter that uses direct conversion to base-band with in phase and quadrature paths within the feedback loop is described. The bandpass input signal is processed with continuous-time circuitry and the I/Q base-band signals are processed with switched-capacitor circuits. Experimental and simulation results indicate that the passband center frequency can be maximized while suppressing the effects of I/Q mismatches
Keywords
circuit feedback; modulators; sigma-delta modulation; switched capacitor networks; A/D converter; ADC; I/Q base-band signal processing; SC circuits; bandpass sigma-delta modulation; continuous-time circuitry; direct conversion; feedback loop; frequency translation; switched-capacitor circuits; Band pass filters; Baseband; Capacitors; Circuits; Delta-sigma modulation; Feedback loop; Frequency conversion; Resonant frequency; Signal processing; Signal resolution;
fLanguage
English
Publisher
ieee
Conference_Titel
Circuits and Systems, 1997. Proceedings of the 40th Midwest Symposium on
Conference_Location
Sacramento, CA
Print_ISBN
0-7803-3694-1
Type
conf
DOI
10.1109/MWSCAS.1997.666092
Filename
666092
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