DocumentCode
1243655
Title
Switched-capacitor bandpass delta-sigma A/D modulation at 10.7 MHz
Author
Singor, Frank W. ; Snelgrove, Martin W.
Author_Institution
Dept. of Electr. Eng., Toronto Univ., Ont., Canada
Volume
30
Issue
3
fYear
1995
fDate
3/1/1995 12:00:00 AM
Firstpage
184
Lastpage
192
Abstract
Two second-order bandpass delta-sigma A/D modulators have been implemented in a 0.8 μ BiCMOS process to demonstrate the feasibility of converting a 10.7 MHz radio IF signal to digital form. The circuits, based on switched-capacitor biquads, demonstrated 57 dB SNR in a 200 kHz bandwidth when clocked at 42.8 MHz, dissipating 60 mW from a 5 V supply. The two modulators use different clocking strategies to allow evaluation of a tradeoff between active and passive sensitivities
Keywords
BiCMOS integrated circuits; biquadratic filters; mixed analogue-digital integrated circuits; modulators; radiotelephony; sigma-delta modulation; switched capacitor networks; 0.8 micron; 10.7 MHz; 200 kHz; 42.8 MHz; 5 V; 57 dB; 60 mW; BiCMOS process; SC biquads; clocking strategies; delta-sigma A/D modulation; radio IF signal; second-order type; switched-capacitor biquads; Band pass filters; Bandwidth; Base stations; BiCMOS integrated circuits; Clocks; Delta modulation; Dynamic range; GSM; Gain control; Telephony;
fLanguage
English
Journal_Title
Solid-State Circuits, IEEE Journal of
Publisher
ieee
ISSN
0018-9200
Type
jour
DOI
10.1109/4.364431
Filename
364431
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