TPA3002D2 Datasheet, PDF (1/34 Pages) Texas Instruments – 9-W STEREO CLASS-D AUDIO POWER AMPLIFIER WITH DC VOLUME CONTROL

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TPA3002D2
SLOS402C − DECEMBER 2002 − REVISED JANUARY 2004
9ĆW STEREO CLASSĆD AUDIO POWER AMPLIFIER
WITH DC VOLUME CONTROL
FEATURES
D 9-W/Ch Into an 8-Ω Load From 12-V Supply
D Efficient, Class-D Operation Eliminates
Heatsinks and Reduces Power Supply
Requirements
D 32-Step DC Volume Control From −40 dB to
36 dB
D Line Outputs For External Headphone
Amplifier With Volume Control
D Regulated 5-V Supply Output for Powering
TPA6110A2
D Space-Saving, Thermally-Enhanced
PowerPAD Packaging
D Thermal and Short-Circuit Protection
APPLICATIONS
D LCD Monitors and TVs
D Powered Speakers
DESCRIPTION
The TPA3002D2 is a 9-W (per channel) efficient, Class-D
audio amplifier for driving bridged-tied stereo speakers.
The TPA3002D2 can drive stereo speakers as low as 8 Ω.
The high efficiency of the TPA3002D2 eliminates the need
for external heatsinks when playing music.
Stereo speaker volume is controlled with a dc voltage
applied to the volume control terminal offering a range of
gain from –40 dB to 36 dB. Line outputs, for driving external
headphone amplifier inputs, are also dc voltage controlled
with a range of gain from –56 dB to 20 dB.
An integrated 5-V regulated supply is provided for
powering an external headphone amplifier.
PVCC _{10 µF}
10 nF
Cbs
Cs
0.1 µF
Cs
10 µF ^PVCC
Cs
0.1 µF
Cs
10 nF
Cbs
SDZ
RINN
RINP
LINP
LINN
VREF
VOL
REFGND
Crinn
Crinp _{1 µF}
1 µF ^C2p5
Clinp _{1 µF}
1 µF ^Clinn
1 µF
VARDIFF
VARMAX
SD
RINN
RINP
V2P5
LINP
LINN
AVDDREF
VREF
VARDIFF
VARMAX
VOLUME
REFGND
TPA3002D2
VCLAMPR
MODE_OUT
MODE
AVCC
VAROUTR
VAROUTL
AGND
AVDD
COSC
ROSC
AGND
VCLAMPL
Cs
Cbs
10 nF
0.1 µF
Cs
PVCC ^{10 µF}
Cs
0.1 µF
Cs
Cbs
10 nF
10 µF _PVCC
Ccpr
1 µF
AVDD
Cosc
220 pF
Ccpl
Cvdd
100 nF
Rosc
120 kΩ
1 µF
10
kΩ
10
kΩ
MODE_OUT
MODE
RLINE_OUT
LLINE_OUT
AVCC
Cs
0.1 µF
Cvcc
10 µF
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments
semiconductor products and disclaimers thereto appears at the end of this data sheet.
PowerPAD is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date. Products
conform to specifications per the terms of Texas Instruments standard warranty.
Production processing does not necessarily include testing of all parameters.
Copyright  2002−2004, Texas Instruments Incorporated