Synthesis of the noise transfer function in N-path sigma delta modulators

2005 ◽  
Author(s):  
F. Borghetti
Keyword(s):  
Transfer Function ◽  
Sigma Delta ◽  
Sigma Delta Modulators ◽  
Noise Transfer Function

Methods for the transfer function design of multiple narrow-band bandpass sigma–delta modulators

2001 ◽  
Vol 23 (2) ◽  
pp. 85-102
Author(s):  
Mohammed Al-Janabi ◽  
Izzet Kale ◽  
Richard C.S. Morling
Keyword(s):  
Transfer Function ◽  
Narrow Band ◽  
Sigma Delta ◽  
Sigma Delta Modulators ◽  
Function Design ◽  
Transfer Function Design

scholarly journals Technique to Improve SNR for Sigma Delta Adcs for Audio Signals

2018 ◽  
Vol 7 (3.6) ◽  
pp. 91
Author(s):  
Ramana Murthy Dumpala ◽  
. .
Keyword(s):  
Transfer Function ◽  
Second Order ◽  
Analog To Digital Converters ◽  
Clock Frequency ◽  
Audio Signals ◽  
Sigma Delta ◽  
Feed Forward ◽  
Analog To Digital ◽  
Noise Transfer Function

A RISR architecture for Sigma-delta analog to digital converters with modified noise transfer function to obtain a better performance in terms of SNR is proposed. Cascading of two modified second order modulators are done to achieve 4th order modulator. Behavioral simulations are done to study the performance of feed-forward and the modified cascaded architecture. They are designed to operate at 1.28MHz clock frequency for audio applications (OSR of 32). It is noted that SNR of 115dB is achieved by cascading of two Modified second order RISR architectures which is 8dB more than the normal RISR architecture.  

Optimization for sigma-delta modulators

2002 ◽  
Author(s):  
A. Pneumatikakis ◽  
A. Constantinides ◽  
V. Anastassopoulos ◽  
T. Deliyannis
Keyword(s):  
Sigma Delta ◽  
Sigma Delta Modulators
Sign in / Sign up

Export Citation Format

Share Document