Design of a CMOS class AB headphone driver

Audio amplifiers such as speakers and headphone drivers usually require large output currents to drive a relatively small load while simultaneously maintaining a very low distortion. This report particularly concerns the design of a headphone driver using CMOS class-AB stage. In this report, the aud...

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Main Author: Tandiawan, Franklin
Other Authors: Siek Liter
Format: Final Year Project
Language:English
Published: 2015
Subjects:
Online Access:http://hdl.handle.net/10356/64345
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-643452023-07-07T17:24:23Z Design of a CMOS class AB headphone driver Tandiawan, Franklin Siek Liter School of Electrical and Electronic Engineering DRNTU::Engineering::Electrical and electronic engineering Audio amplifiers such as speakers and headphone drivers usually require large output currents to drive a relatively small load while simultaneously maintaining a very low distortion. This report particularly concerns the design of a headphone driver using CMOS class-AB stage. In this report, the audio amplifier to be designed should have a Gain Bandwidth (GBW) much larger than 22.5kHz and a closed loop gain of over 40 dB with a power supply of 1.8V. The audio amplifier will comprise three stages: input stage, class-AB stage, and output stage. To provide stability, the output will be fed back to the input stage through a negative feedback. Class-AB stage is required to provide quiescent currents for the output stages and prevent crossover distortion at the two output transistors. In addition, the audio amplifier should have a reasonably high power efficiency and good stability. All the stages and the biasing circuits were designed in Cadence EDA tools for circuit simulation. In addition, the DC, AC, transient, and stability analyses of the resulting amplifier are to be done in this platform. Bachelor of Engineering 2015-05-26T03:29:53Z 2015-05-26T03:29:53Z 2015 2015 Final Year Project (FYP) http://hdl.handle.net/10356/64345 en Nanyang Technological University 67 p. application/msword application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic DRNTU::Engineering::Electrical and electronic engineering
spellingShingle DRNTU::Engineering::Electrical and electronic engineering
Tandiawan, Franklin
Design of a CMOS class AB headphone driver
description Audio amplifiers such as speakers and headphone drivers usually require large output currents to drive a relatively small load while simultaneously maintaining a very low distortion. This report particularly concerns the design of a headphone driver using CMOS class-AB stage. In this report, the audio amplifier to be designed should have a Gain Bandwidth (GBW) much larger than 22.5kHz and a closed loop gain of over 40 dB with a power supply of 1.8V. The audio amplifier will comprise three stages: input stage, class-AB stage, and output stage. To provide stability, the output will be fed back to the input stage through a negative feedback. Class-AB stage is required to provide quiescent currents for the output stages and prevent crossover distortion at the two output transistors. In addition, the audio amplifier should have a reasonably high power efficiency and good stability. All the stages and the biasing circuits were designed in Cadence EDA tools for circuit simulation. In addition, the DC, AC, transient, and stability analyses of the resulting amplifier are to be done in this platform.
author2 Siek Liter
author_facet Siek Liter
Tandiawan, Franklin
format Final Year Project
author Tandiawan, Franklin
author_sort Tandiawan, Franklin
title Design of a CMOS class AB headphone driver
title_short Design of a CMOS class AB headphone driver
title_full Design of a CMOS class AB headphone driver
title_fullStr Design of a CMOS class AB headphone driver
title_full_unstemmed Design of a CMOS class AB headphone driver
title_sort design of a cmos class ab headphone driver
publishDate 2015
url http://hdl.handle.net/10356/64345
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