Impact of Spread Spectrum EMI-Reduction on Audio Performance of Filterless Class-D Amplifiers

Timucin David Karaca; Mario Auer; Gunter Winkler; Bernd Deutschmann

Impact of Spread Spectrum EMI-Reduction on Audio Performance of Filterless Class-D Amplifiers

Timucin David Karaca, Mario Auer, Gunter Winkler, Bernd Deutschmann

Institute of Electronics (4390)

Research output: Chapter in Book/Report/Conference proceeding › Conference paper › peer-review

Abstract

In this paper the ability of using spread spectrum clock generation (SSCG) techniques for audio applications is investigated. It is shown how this technique can be used to reduce the electromagnetic emission that is caused by the high frequency switching activity of Class-D audio amplifiers. Additionally the trade-offs when using this technique are explained. Based on measurement and simulation of the conducted common-mode electromagnetic emission and THD+N of a class D audio amplifier, it is shown how the spread spectrum technique can be used to reduce the electromagnetic emission in certain frequency ranges and how it impacts the audio performance.

Original language	English
Title of host publication	22nd Austrian Workshop on Microelectronics (Austrochip)
Publisher	Institute of Electrical and Electronics Engineers
Pages	47-52
ISBN (Electronic)	978-1-4799-7244-9
ISBN (Print)	978-1-4799-7243-2
Publication status	Published - 2014
Event	Austrian Workshop on Microelectronics (Austrochip): Austrochip 2014 - Graz, Austria Duration: 9 Oct 2014 → 9 Oct 2014

Workshop

Workshop	Austrian Workshop on Microelectronics (Austrochip)
Country/Territory	Austria
City	Graz
Period	9/10/14 → 9/10/14

Fields of Expertise

Information, Communication & Computing

Treatment code (Nähere Zuordnung)

Experimental
Basic - Fundamental (Grundlagenforschung)

LEAD - LEAD-Low Emission Analog Design
Auer, M.
1/08/14 → 31/07/17
Project: Research project

Cite this

Impact of Spread Spectrum EMI-Reduction on Audio Performance of Filterless Class-D Amplifiers. / Karaca, Timucin David; Auer, Mario; Winkler, Gunter et al.
22nd Austrian Workshop on Microelectronics (Austrochip) . Institute of Electrical and Electronics Engineers, 2014. p. 47-52.

Research output: Chapter in Book/Report/Conference proceeding › Conference paper › peer-review

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title = "Impact of Spread Spectrum EMI-Reduction on Audio Performance of Filterless Class-D Amplifiers",

abstract = "In this paper the ability of using spread spectrum clock generation (SSCG) techniques for audio applications is investigated. It is shown how this technique can be used to reduce the electromagnetic emission that is caused by the high frequency switching activity of Class-D audio amplifiers. Additionally the trade-offs when using this technique are explained. Based on measurement and simulation of the conducted common-mode electromagnetic emission and THD+N of a class D audio amplifier, it is shown how the spread spectrum technique can be used to reduce the electromagnetic emission in certain frequency ranges and how it impacts the audio performance.",

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year = "2014",

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booktitle = "22nd Austrian Workshop on Microelectronics (Austrochip)",

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AU - Auer, Mario

AU - Winkler, Gunter

AU - Deutschmann, Bernd

PY - 2014

Y1 - 2014

N2 - In this paper the ability of using spread spectrum clock generation (SSCG) techniques for audio applications is investigated. It is shown how this technique can be used to reduce the electromagnetic emission that is caused by the high frequency switching activity of Class-D audio amplifiers. Additionally the trade-offs when using this technique are explained. Based on measurement and simulation of the conducted common-mode electromagnetic emission and THD+N of a class D audio amplifier, it is shown how the spread spectrum technique can be used to reduce the electromagnetic emission in certain frequency ranges and how it impacts the audio performance.

AB - In this paper the ability of using spread spectrum clock generation (SSCG) techniques for audio applications is investigated. It is shown how this technique can be used to reduce the electromagnetic emission that is caused by the high frequency switching activity of Class-D audio amplifiers. Additionally the trade-offs when using this technique are explained. Based on measurement and simulation of the conducted common-mode electromagnetic emission and THD+N of a class D audio amplifier, it is shown how the spread spectrum technique can be used to reduce the electromagnetic emission in certain frequency ranges and how it impacts the audio performance.

M3 - Conference paper

SN - 978-1-4799-7243-2

SP - 47

EP - 52

BT - 22nd Austrian Workshop on Microelectronics (Austrochip)

PB - Institute of Electrical and Electronics Engineers

T2 - Austrian Workshop on Microelectronics (Austrochip)

Y2 - 9 October 2014 through 9 October 2014

ER -

Impact of Spread Spectrum EMI-Reduction on Audio Performance of Filterless Class-D Amplifiers

Abstract

Workshop

Fields of Expertise

Treatment code (Nähere Zuordnung)

Fingerprint

Projects

LEAD - LEAD-Low Emission Analog Design

Cite this