DocumentCode
299277
Title
Performance of complex noise transfer functions in bandpass and multi band sigma delta systems
Author
Aziz, Pervez M. ; Sorensen, Henrik V. ; Van der Spiegel, Jan
Author_Institution
Dept. of Electr. Eng., Pennsylvania Univ., Philadelphia, PA, USA
Volume
1
fYear
1995
fDate
30 Apr-3 May 1995
Firstpage
641
Abstract
The use of complex noise transfer functions for bandpass sigma delta modulation is described and compared with real transfer functions. For bandpass signals centered at higher frequencies, the use of complex noise transfer functions (NTFs) allows performance improvements over a modulator of the same order using real transfer functions. Results are presented that show the performance improvement possible using complex second order modulators
Keywords
integrated circuit noise; poles and zeros; sigma-delta modulation; transfer functions; bandpass sigma delta modulation; complex noise transfer functions; multi band sigma delta systems; performance improvement; second order modulators; Attenuation; Bandwidth; Delta-sigma modulation; Filtering theory; Finite impulse response filter; Frequency conversion; Poles and zeros; Quantization; Signal resolution; Transfer functions;
fLanguage
English
Publisher
ieee
Conference_Titel
Circuits and Systems, 1995. ISCAS '95., 1995 IEEE International Symposium on
Conference_Location
Seattle, WA
Print_ISBN
0-7803-2570-2
Type
conf
DOI
10.1109/ISCAS.1995.521595
Filename
521595
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