Modelling, Analysis and Optimization of a 4th Order Delta-Sigma ADC and its Non-Idealities for Audio Codec Applications Achieving Dynamic Range Above 100dB

• Published in: 2021 International Symposium on Devices, Circuits and Systems (ISDCS) pp. 1 - 6
• Main Authors: Singh, Bramh Dev, Naskar, Sourav, Das, Subhajit, Rahaman, Hafizur
• Format: Conference Proceeding
• Language: English
• Published: IEEE 03.03.2021
• Subjects: Analytical models; BW (Bandwidth); Codecs; GBW (Gain Bandwidth product); Integrated circuit modeling; Mathematical model; Matlab; Modulation; Sigma-Delta Modulator (∑Δ Modulator); Signal to noise ratio; SNR (Signal to Noise Ratio); SR (Slew rate); TF (Transfer Function)

In this work, The presented MATLAB ® SIMULINK ® model of the 4 th order single bit Δ∑ Modulator and Decimator Filter for the Audio Codec applications. The Delta-Sigma ADC is developed along with the various Non-idealities and noise models associated with the Δ∑ Modulator. This type of modulators is...