DocumentCode
2404278
Title
A Stable 4th-Order Delta-Sigma Modulator with an FIR predictor
Author
Okamoto, Tatsuaki ; Maruyama, Yuichi ; Yukawa, Akira
Author_Institution
Syst. Micro LSI Dept., NEC Corp., Kawasaki, Japan
fYear
1992
fDate
21-23 Sept. 1992
Firstpage
95
Lastpage
98
Abstract
A novel approach for a stable high-order delta-sigma modulator is presented. The modulator provides 16 bit resolution at 20kHz bandwidth using 4th-order noise shaping structure at an oversampling ratio of 64. The modulation loop is completely stabilized by an FIR prediction technique. The architecture inherently has less sensitivity to component mismatch. The total hardware is much the same as the noise shaping integrators.
Keywords
FIR filters; delta-sigma modulation; FIR predictor; bandwidth 20 kHz; noise shaping integrators; oversampling ratio; sensitivity; stable 4th-order delta-sigma modulator; word length 16 bit; Bandwidth; Delta modulation; Feedback; Finite impulse response filter; Hardware; Large scale integration; National electric code; Noise level; Noise shaping; Stability;
fLanguage
English
Publisher
ieee
Conference_Titel
Solid-State Circuits Conference, 1992. ESSCIRC '92. Eighteenth European
Conference_Location
Copenhagen
Print_ISBN
87-984232-0-7
Type
conf
DOI
10.1109/ESSCIRC.1992.5468428
Filename
5468428
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