DocumentCode
2932757
Title
Design of tunable continuous-time quadrature bandpass delta-sigma modulators
Author
Sakr, Khaled ; Dessouky, Mohamed ; Zekry, Abd-El Halim
Author_Institution
Electron. & Commun. Eng. Dept., Ain Shams Univ., Cairo, Egypt
fYear
2011
fDate
11-14 Dec. 2011
Firstpage
99
Lastpage
103
Abstract
This paper presents a systematic design technique for a tunable continuous-time quadrature bandpass delta-sigma modulator. The tuning range of the modulator covers from 0.05 to 0.45 of the sampling frequency. The design procedure is applied to the design of a second-order modulator. Results show that the Signal-to-Noise Ratio (SNR) is almost constant and no stability problem occurs over the whole tuning range thanks to a Digital-to-Analog Converter (DAC) compensation scheme.
Keywords
compensation; continuous time systems; delta-sigma modulation; DAC compensation; digital-to-analog converter; quadrature bandpass delta-sigma modulators; sampling frequency; second-order modulator; signal-to-noise ratio; tunable continuous-time delta-sigma modulator; Band pass filters; Frequency modulation; Signal to noise ratio; Transfer functions; Tuning; Complex; Continuous Time; Delta-Sigma; Tunable;
fLanguage
English
Publisher
ieee
Conference_Titel
Design and Test Workshop (IDT), 2011 IEEE 6th International
Conference_Location
Beirut
ISSN
2162-0601
Print_ISBN
978-1-4673-0468-9
Electronic_ISBN
2162-0601
Type
conf
DOI
10.1109/IDT.2011.6123110
Filename
6123110
Link To Document