Title :
Stability analysis in Higher order Delta Sigma modulator
Author :
Sonika ; Neema, D.D. ; Patel, R.N.
Author_Institution :
Deptt of Electron. Eng., CSIT, Durg Chhattisgarh, India
Abstract :
This paper present a comparison of theoretical SQNR Vs OSR performance of Higher order Delta Sigma modulator for audio signal with multibit quantizier and a framework for stability analysis of sigma Delta modulator is presented. The Stability of the modulator is examined by means of the NTF. A analysis is present by taking different modulator order with selection of different type of filters (Butterworth, Chebyshev) for design of NTF and based upon observation is made on signal to noise ratio, out of Band gain and max stable amplitude for DSM.
Keywords :
audio signal processing; modulators; NTF; OSR performance; SQNR; audio signal; higher order delta sigma modulator; multibit quantizier; stability analysis; Circuit stability; Delta-sigma modulation; Modulation; Poles and zeros; Signal to noise ratio; Stability analysis; Delta sigma modulator; Maximum Stable Amplitude; Noise Transfer Function; Out of Band gain; Oversampling ratio; Signal to Quantization Noise Ratio;
Conference_Titel :
Advanced Computing and Communication Systems (ICACCS), 2013 International Conference on
Conference_Location :
Coimbatore
DOI :
10.1109/ICACCS.2013.6938746
