TPA6030A4_07 Datasheet, PDF (1/30 Pages) Texas Instruments – 3-2 STEREO AUDIO POWER AMPLIFIER WITH ADVANCED DC VOLUME CONTROL

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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 CD
Player
0.47 µF
0.47 µF
RIN1+
RIN2+
From TV
From CD
Player
0.47 µF
0.47 µF
RIN1−
RIN2−
System
Control
From DAC or
Potentiometers
(DC Voltage)
IN2/IN1
VOLUME
SEDIFF
SEMAX
CLK
From TV
From CD
Player
0.47 µF
0.47 µF
LIN1+
LIN2+
47 nF
From TV
From CD
Player
0.47 µF
0.47 µF
LIN1−
LIN2−
R
Mux
R
Mux
Input Mux
Control
L
Mux
L
Mux
Depop
Circuitry
32−Step
Volume
Control
+
VCC/2
−
Power
Management
Output Mode
Control
VCC = 12V
Rout +
1 µF
10 µF
16 Ω
Rout −
PVcc
PVcc
Vcc
Gnd
100 kΩ
Bypass
0.47 µF
Shutdown
System
Control
To Potentiometers
5VREF ^{or DAC reference}
220 µF
1 kΩ
1 kΩ
SE/BTL
100 kΩ
220 µF
+
VCC/2
−
Lout +
Lout −
16 Ω
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