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TDA8948J/N1112 데이터 시트보기 (PDF) - NXP Semiconductors.

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TDA8948J/N1112
NXP
NXP Semiconductors. NXP
TDA8948J/N1112 Datasheet PDF : 26 Pages
First Prev 21 22 23 24 25 26
NXP Semiconductors
20. Contents
1
2
2.1
3
4
5
6
7
7.1
7.2
8
8.1
8.2
8.2.1
8.2.2
8.3
8.4
8.5
9
10
11
12
13
13.1
13.2
13.2.1
13.2.2
13.3
14
14.1
15
16
16.1
16.2
16.3
16.4
17
18
18.1
18.2
18.3
18.4
19
20
General description . . . . . . . . . . . . . . . . . . . . . . 1
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Functional features . . . . . . . . . . . . . . . . . . . . . . 1
Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Quick reference data . . . . . . . . . . . . . . . . . . . . . 2
Ordering information . . . . . . . . . . . . . . . . . . . . . 3
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Pinning information . . . . . . . . . . . . . . . . . . . . . . 4
Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 4
Functional description . . . . . . . . . . . . . . . . . . . 5
Input configuration . . . . . . . . . . . . . . . . . . . . . . 5
Power amplifier . . . . . . . . . . . . . . . . . . . . . . . . . 5
Output power measurement . . . . . . . . . . . . . . . 6
Headroom . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Mode selection . . . . . . . . . . . . . . . . . . . . . . . . . 6
Supply voltage ripple rejection . . . . . . . . . . . . . 7
Built-in protection circuits . . . . . . . . . . . . . . . . . 8
Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . . 8
Thermal characteristics. . . . . . . . . . . . . . . . . . . 8
Static characteristics. . . . . . . . . . . . . . . . . . . . . 9
Dynamic characteristics . . . . . . . . . . . . . . . . . . 9
Application information. . . . . . . . . . . . . . . . . . 15
Application diagrams . . . . . . . . . . . . . . . . . . . 15
Printed-circuit board . . . . . . . . . . . . . . . . . . . . 17
Layout and grounding . . . . . . . . . . . . . . . . . . . 17
Power supply decoupling . . . . . . . . . . . . . . . . 17
Thermal behavior and heat sink calculation . . 18
Test information . . . . . . . . . . . . . . . . . . . . . . . . 19
Quality information . . . . . . . . . . . . . . . . . . . . . 19
Package outline . . . . . . . . . . . . . . . . . . . . . . . . 20
Soldering of SMD packages . . . . . . . . . . . . . . 21
Introduction to soldering . . . . . . . . . . . . . . . . . 21
Wave and reflow soldering . . . . . . . . . . . . . . . 21
Wave soldering . . . . . . . . . . . . . . . . . . . . . . . . 21
Reflow soldering . . . . . . . . . . . . . . . . . . . . . . . 22
Revision history . . . . . . . . . . . . . . . . . . . . . . . . 24
Legal information. . . . . . . . . . . . . . . . . . . . . . . 25
Data sheet status . . . . . . . . . . . . . . . . . . . . . . 25
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Contact information. . . . . . . . . . . . . . . . . . . . . 25
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
TDA8948J
4-channel audio amplifier
Please be aware that important notices concerning this document and the product(s)
described herein, have been included in section ‘Legal information’.
© NXP B.V. 2008.
All rights reserved.
For more information, please visit: http://www.nxp.com
For sales office addresses, please send an email to: salesaddresses@nxp.com
Date of release: 27 February 2008
Document identifier: TDA8948J_1

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