ScholarLens Back to search
2013•Applied Mechanics and MaterialsOpen access

Design of a Fourth-Order Sigma-Delta Modulator for Audio Application

Ming Ren, Tuo Li, Chang Chun Dong

Open full text 0 citations

Abstract

Based on requirements on high performance and high resolution of modulators, a fourth-order Sigma-Delta modulator for audio application is developed in this paper. The modulator is designed under the commercial 0.5μm CMOS process and the circuits are given simulations by Spectre. The sampling frequency of sigma-delta modulator is 11.264 MHz, and OSR is 256 within the 22 kHz signal bandwidth. Measure performance shows that Sigma-Delta modulator enables its maximum SNR to achieve 103.5dB, and the accuracy of Sigma-Delta modulator is up to 16 bit.

About this research paper

What this paper is about

Based on requirements on high performance and high resolution of modulators, a fourth-order Sigma-Delta modulator for audio application is developed in this paper. The modulator is designed under the commercial 0.5μm CMOS process and the circuits are given simulations by Spectre. The sampling frequency of sigma-delta modulator is 11.264 MHz, and OSR is 256 within the 22 kHz signal bandwidth. Measure performance shows that Sigma-Delta modulator enables its maximum SNR to achieve 103.5dB, and the accuracy of Sigma-Delta modulator is up to 16 bit.

Why it matters

A significance statement is not available in the OpenAlex record.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available abstract

Based on requirements on high performance and high resolution of modulators, a fourth-order Sigma-Delta modulator for audio application is developed in this paper. The modulator is designed under the commercial 0.5μm CMOS process and the circuits are given simulations by Spectre. The sampling frequency of sigma-delta modulator is 11.264 MHz, and OSR is 256 within the 22 kHz signal bandwidth. Measure performance shows that Sigma-Delta modulator enables its maximum SNR to achieve 103.5dB, and the accuracy of Sigma-Delta modulator is up to 16 bit.

Key concepts: Delta-sigma modulation, Bandwidth (computing), Electronic engineering, Sigma, CMOS, Oversampling, Engineering, Computer science

Related papers

Related paper 1Related paper 2Related paper 3
Back to paper searchBrowse research topicsOriginal source
Design of a Fourth-Order Sigma-Delta Modulator for Audio Application — Research Paper | ScholarLens