TPA6013A4 Datasheet, PDF (1/28 Pages) Texas Instruments – 3-W STEREO AUDIO POWER AMPLIFIER WITH ADVANCED DC VOLUME CONTROL

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3-W STEREO AUDIO POWER AMPLIFIER
WITH ADVANCED DC VOLUME CONTROL
Check for Samples :TPA6013A4
TPA6013A4
SLOS635 – NOVEMBER 2009
FEATURES
1
•2 Advanced 32-Steps DC Volume Control
– Steps from –40 to 18 dB
– Fade Mode
– Maximum Volume Setting for SE Mode
– Adjustable SE Volume Control
Referenced to BTL Volume Control
• 3 W Into 3-Ω Speakers
• Stereo Input MUX
• Headphone Mode
• Pin-to-pin compatible with TPA6011A4 and
TPA6012A4
• 24-pin PowerPAD™ Package (PWP)
APPLICATIONS
• Notebook PC
• LCD Monitors
• Pocket PC
APPLICATION CIRCUIT
DESCRIPTION
The TPA6013A4 is a stereo audio power amplifier
that drives 3 W/channel of continuous RMS power
into a 3-Ω load. Advanced dc volume control
minimizes external components and allows BTL
(speaker) volume control and SE (headphone)
volume control. Notebook and pocket PCs benefit
from the integrated feature set that minimizes
external components without sacrificing functionality.
To simplify design, the speaker volume level is
adjusted by applying a dc voltage to the VOLUME
terminal. Likewise, 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. Finally, to ensure a smooth transition
between active and shutdown modes, a fade mode
ramps the volume up and down.
DC VOLUME CONTROL
1
PGND
24
ROUT+
23
SE/BTL
C_S
Power Supply
C_i
Right HP
Audio Source
C_i
Right Line
Audio Source
C_i
C_S ^VDD
C_i
2
ROUT−
3
PV_DD
4
RHPIN
5
RLINEIN
6
RIN
7
V_DD
8
LIN
22
HP/LINE
21
VOLUME
20
SEDIFF
19
SEMAX
18
AGND
17
BYPASS
Left Line
Audio Source
Left HP
Audio Source
C_i
C_i
9
LLINEIN
16
FADE
10 _{LHPIN SHUTDOWN 15}
Power Supply
11
PV_DD
12
C_S
LOUT−
14
LOUT+
13
PGND
V_DD
100 kW
100 kW
In From DAC
or
Potentiometer
(DC Voltage)
C_(BYP)
System Control
Right
Speaker
C_C
1 kW
Headphones
C_C
1 kW
Left
Speaker
20
10
0
−10
−20
−30
−40
−50
−60
−70
−80
−90
0.0
GAIN (BTL)
vs
VOLUME VOLTAGE
Volume Up
Volume Down
0.5 1.0 1.5 2.0 2.5 3.0 3.5
Volume [Pin 21] − V
V_DD = 5.0 V
BTL Output
R_L = No Load
4.0 4.5 5.0
S001
Figure 1. Application Circuit and DC Volume Control
1
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.
2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2009, Texas Instruments Incorporated