Philips Semiconductors
UM10155
Discrete Class D High Power Audio Amplifier
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
For more information, please visit: http://www.semiconductors.philips.com.
For sales office addresses, email to: sales.addresses@www.semiconductors.philips.com.
Date of release: 5 September 2006
Document identifier: UM10155_2
Please be aware that important notices concerning this document and the product(s)
described herein, have been included in section ‘Legal information’.
8. Contents
1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 Circuit diagram. . . . . . . . . . . . . . . . . . . . . . . . . . 4
3 Printed-circuit board layout . . . . . . . . . . . . . . . 5
4 Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4.1 Pop-less/click-less start-up and shutdown . . . . 6
4.2 Overcurrent protection . . . . . . . . . . . . . . . . . . . 6
4.3 Important notice . . . . . . . . . . . . . . . . . . . . . . . . 7
5 Wiring diagram and powering-up. . . . . . . . . . . 7
6 Adding external features. . . . . . . . . . . . . . . . . . 8
6.1 Electronic enabling/disabling of the amplifier . . 8
6.2 Short-circuit and overcurrent protection . . . . . . 9
6.3 Sonic performance versus Efficiency trade-off 10
7 Legal information. . . . . . . . . . . . . . . . . . . . . . . 11
7.1 Definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
7.2 Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
7.3 Patents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
7.4 Trademarks. . . . . . . . . . . . . . . . . . . . . . . . . . . 11
8 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
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