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TPA6030A4_07 Datasheet (HTML) - Texas Instruments

Part No. TPA6030A4_07
Description  3-2 STEREO AUDIO POWER AMPLIFIER WITH ADVANCED DC VOLUME CONTROL
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
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TPA6030A4
SLOS395B − DECEMBER 2002 − REVISED JANUARY 2005
3-W STEREO AUDIO POWER AMPLIFIER
WITH ADVANCED DC VOLUME CONTROL
FEATURES
D 3 W Into 16 Ω From 12-V Supply
D Volume Control for Speakers (BTL) and
Headphones (SE)
D Differential Inputs
D Depop Circuitry
D 1 µA Shutdown Current
D Surface-Mount Package
APPLICATIONS
D LCD Monitors and LCD TVs
D Multimedia Speakers
D Notebook Computers
DESCRIPTION
The TPA6030A4 is designed to drive 3 W into 16-Ω
speakers using a surface-mount package without the need
for an external heatsink. These features make it ideal for
15I−17I LCD monitors, small multimedia speakers, and
notebook computers.
To simplify system design, the speaker volume level is
adjusted by applying a dc voltage to the VOLUME
terminal. The delta between speaker volume and
headphone volume can be adjusted by applying a dc
voltage to the SEDIFF terminal. To avoid an unexpected
high volume level through the headphones, a third
terminal, SEMAX, limits the headphone volume level
when a dc voltage is applied. Integrated depop circuitry
and the fully differential design minimize pops, clicks, and
unwanted noise to provide a high level of audio
performance.
The device is available in a 28-pin TSSOP PowerPAD
package. The PowerPAD package is designed to
transfer heat into the ground plane, eliminating the need
for external heat sinks—minimizing solution cost and size.
From TV
From TV
From TV
From TV
VCC = 12V
System
Control
47 nF
From DAC or
Potentiometers
(DC Voltage)
Shutdown
PVcc
PVcc
R
Mux
R
Mux
L
Mux
L
Mux
Input Mux
Control
32−Step
Volume
Control
VCC/2
+
+
VCC/2
Power
Management
Vcc
Output Mode
System
Control
Gnd
5VREF
Rout +
Rout −
Lout +
Lout −
To Potentiometers
or DAC reference
Bypass
RIN1+
CLK
SEMAX
SEDIFF
VOLUME
SE/BTL
IN2/IN1
From CD
Player
From CD
Player
From CD
Player
From CD
Player
0.47 µF
220 µF
220 µF
16 Ω
16 Ω
1 kΩ
1 kΩ
Control
Depop
Circuitry
RIN2+
RIN1−
RIN2−
LIN1+
LIN2+
0.47 µF
LIN1−
LIN2−
1 µF
10 µF
100 kΩ
100 kΩ
0.47 µF
0.47 µF
0.47 µF
0.47 µF
0.47 µF
0.47 µF
0.47 µF
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.
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.
www.ti.com
Copyright  2003, Texas Instruments Incorporated
PowerPAD is a trademark of Texas Instruments.



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