Title :
A fast SNR estimation method for sigma-delta modulator design
Author :
Jiandong Cheng ; Guoyong Shi ; Ailin Zhang
Author_Institution :
Sch. of Microelectron., Shanghai Jiao Tong Univ., Shanghai, China
Abstract :
This paper presents a fast symbolic method for computation of the signal-to-noise ratio (SNR) of switched-capacitor sigma-delta modulators. The key idea is to use a Taylor expansion polynomial to approximate the rational expression of a noise transfer function (NTF). This new method can be used in automatic optimization tools developed for switched-capacitor sigma-delta modulator design.
Keywords :
approximation theory; capacitors; modulators; optimisation; polynomial approximation; switched capacitor networks; NTF; Taylor expansion polynomial; automatic optimization tools; fast SNR estimation method; noise transfer function; rational expression approximation; switched capacitor sigma delta modulators; Accuracy; Approximation methods; Modulation; Polynomials; Sigma-delta modulation; Signal to noise ratio; Switches; Sigma-Delta Modulator; Switched-Capacitor; Symbolic Analysis;
Conference_Titel :
TENCON 2013 - 2013 IEEE Region 10 Conference (31194)
Conference_Location :
Xi´an
Print_ISBN :
978-1-4799-2825-5
DOI :
10.1109/TENCON.2013.6719036
