Title :
Performance evaluations of 3rd order sigma-delta (Σ - Δ) modulators via ASIC implementation
Author :
Liao, Yongbo ; Lei, Zhangwei ; Li, Ping
Author_Institution :
Inst. of Microelectron., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
fDate :
29 June-1 July 2002
Abstract :
A third-order sigma-delta (Σ - Δ) modulator implementation in a Digital Power Amplifier is presented in this paper. The operation is obtained by using a novel combination of architectural features, proper circuit structure selections, specific clocking strategies, and efficient circuit optimization algorithms. Measurement results from fabricated CMOS chip prototypes show a good match with simulations.
Keywords :
CMOS integrated circuits; application specific integrated circuits; circuit optimisation; power amplifiers; sigma-delta modulation; ASIC; CMOS chip; circuit optimization algorithm; digital power amplifier; hardware architecture; third-order sigma-delta modulator; Application specific integrated circuits; Computer architecture; Delta-sigma modulation; Digital modulation; Finite impulse response filter; IIR filters; Modulation coding; Power amplifiers; Signal processing algorithms; Signal resolution;
Conference_Titel :
Communications, Circuits and Systems and West Sino Expositions, IEEE 2002 International Conference on
Print_ISBN :
0-7803-7547-5
DOI :
10.1109/ICCCAS.2002.1179071
