www.ti.com
TPA6030A4
SLOS395B − DECEMBER 2002 − REVISED JANUARY 2005
3-W STEREO AUDIO POWER AMPLIFIER
WITH ADVANCED DC VOLUME CONTROL
FEATURES
DESCRIPTION
The TPA6030A4 is designed to drive 3 W into 16-Ω
D
D
3 W Into 16 Ω From 12-V Supply
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.
Volume Control for Speakers (BTL) and
Headphones (SE)
D
D
D
D
Differential Inputs
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.
Depop Circuitry
1 µA Shutdown Current
Surface-Mount Package
APPLICATIONS
D
D
D
LCD Monitors and LCD TVs
Multimedia Speakers
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.
Notebook Computers
VCC = 12V
0.47 µF
RIN1+
From TV
R
1 µF
10 µF
RIN2+
Mux
16 Ω
From CD
Player
0.47 µF
Rout +
Rout −
PVcc
+
Depop
Circuitry
VCC/2
−
0.47 µF
RIN1−
From TV
R
PVcc
Vcc
RIN2−
Mux
220 µF
From CD
Player
0.47 µF
100 kΩ
Gnd
Power
1 kΩ
System
Control
0.47 µF
IN2/IN1
Input Mux
Control
Management
Bypass
System
Control
VOLUME
SEDIFF
SEMAX
CLK
From DAC or
32−Step
Shutdown
Output Mode
Control
Potentiometers
(DC Voltage)
Volume
Control
To Potentiometers
or DAC reference
1 kΩ
5VREF
SE/BTL
220 µF
0.47 µF
LIN1+
LIN2+
100 kΩ
From TV
L
Mux
From CD
Player
0.47 µF
47 nF
+
Lout +
VCC/2
−
Lout −
0.47 µF
0.47 µF
LIN1−
LIN2−
L
From TV
16 Ω
Mux
From CD
Player
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 2003, Texas Instruments Incorporated