Audio Amplifiers 2X15W BTL CLASS D AMP+VOLCTRL

TDA8932T

Manufacturer Part NumberTDA8932T
DescriptionAudio Amplifiers 2X15W BTL CLASS D AMP+VOLCTRL
ManufacturerNXP Semiconductors
TDA8932T datasheet
 


Specifications of TDA8932T

ProductClass-DOutput Power50 W
Available Set Gain36 dBCommon Mode Rejection Ratio (min)56 dB
Thd Plus Noise0.015 %Operating Supply Voltage22 V
Maximum Power Dissipation5000 mWMaximum Operating Temperature+ 85 C
Mounting StyleSMD/SMTAudio Load Resistance8 Ohms
Dual Supply Voltage+/- 11 VInput Signal TypeDifferential
Minimum Operating Temperature- 40 COutput Signal TypeDifferential, Single
Supply TypeSingle or DualSupply Voltage (max)36 V
Supply Voltage (min)10 VOutput Type1-Channel Mono or 2-Channel Stereo
Package / CaseSOIC-32Lead Free Status / RoHS StatusLead free / RoHS Compliant
Other namesTDA8932T/N1,112  
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NXP Semiconductors
22. Contents
1
General description . . . . . . . . . . . . . . . . . . . . . . 1
2
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
3
Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
4
Quick reference data . . . . . . . . . . . . . . . . . . . . . 2
5
Ordering information . . . . . . . . . . . . . . . . . . . . . 2
6
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 3
7
Pinning information . . . . . . . . . . . . . . . . . . . . . . 4
7.1
Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
7.2
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 4
8
Functional description . . . . . . . . . . . . . . . . . . . 6
8.1
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
8.2
Mode selection and interfacing . . . . . . . . . . . . . 6
8.3
Pulse width modulation frequency . . . . . . . . . . 7
8.4
Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
8.4.1
Thermal Foldback (TF) . . . . . . . . . . . . . . . . . . . 9
8.4.2
OverTemperature Protection (OTP) . . . . . . . . . 9
8.4.3
OverCurrent Protection (OCP) . . . . . . . . . . . . . 9
8.4.4
Window Protection (WP). . . . . . . . . . . . . . . . . 10
8.4.5
Supply voltage protection . . . . . . . . . . . . . . . . 10
8.5
Diagnostic input and output . . . . . . . . . . . . . . 11
8.6
Differential inputs . . . . . . . . . . . . . . . . . . . . . . 11
8.7
Output voltage buffers. . . . . . . . . . . . . . . . . . . 12
9
Internal circuitry. . . . . . . . . . . . . . . . . . . . . . . . 13
10
Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . 17
11
Thermal characteristics. . . . . . . . . . . . . . . . . . 17
12
Static characteristics. . . . . . . . . . . . . . . . . . . . 18
13
Dynamic characteristics . . . . . . . . . . . . . . . . . 20
14
Application information. . . . . . . . . . . . . . . . . . 23
14.1
Output power estimation. . . . . . . . . . . . . . . . . 23
14.2
Output current limiting. . . . . . . . . . . . . . . . . . . 25
14.3
Speaker configuration and impedance . . . . . . 25
14.4
Single-ended capacitor . . . . . . . . . . . . . . . . . . 25
14.5
Gain reduction . . . . . . . . . . . . . . . . . . . . . . . . 26
14.6
Device synchronization. . . . . . . . . . . . . . . . . . 27
14.7
Thermal behavior (printed-circuit board
considerations) . . . . . . . . . . . . . . . . . . . . . . . . 27
14.8
Pumping effects . . . . . . . . . . . . . . . . . . . . . . . 29
14.9
SE curves measured in reference design. . . . 30
14.10
BTL curves measured in reference design . . . 32
14.11
Typical application schematics (simplified) . . . 35
15
Test information . . . . . . . . . . . . . . . . . . . . . . . . 38
15.1
Quality information . . . . . . . . . . . . . . . . . . . . . 38
16
Package outline . . . . . . . . . . . . . . . . . . . . . . . . 39
17
Soldering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
17.1
Introduction to soldering . . . . . . . . . . . . . . . . . 40
Class-D audio amplifier
17.2
Wave and reflow soldering . . . . . . . . . . . . . . . 40
17.3
Wave soldering. . . . . . . . . . . . . . . . . . . . . . . . 40
17.4
Reflow soldering. . . . . . . . . . . . . . . . . . . . . . . 41
18
Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . 42
19
Revision history . . . . . . . . . . . . . . . . . . . . . . . 43
20
Legal information . . . . . . . . . . . . . . . . . . . . . . 44
20.1
Data sheet status . . . . . . . . . . . . . . . . . . . . . . 44
20.2
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
20.3
Disclaimers. . . . . . . . . . . . . . . . . . . . . . . . . . . 44
20.4
Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . 44
21
Contact information . . . . . . . . . . . . . . . . . . . . 44
22
Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
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. 2006.
For more information, please visit: http://www.nxp.com
For sales office addresses, please send an email to: salesaddresses@nxp.com
TDA8932
All rights reserved.
Date of release: 12 December 2006
Document identifier: TDA8932_2