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FEATURES
DESCRIPTION
APPLICATIONS
APPLICATION CIRCUIT
PGND
ROUT-
PV
DD
RHPIN
RLINEIN
RIN
V
DD
LIN
LLINEIN
LHPIN
PV
DD
LOUT-
1
ROUT+
SE/BTL
HP/LINE
VOLUME
SEDIFF
SEMAX
AGND
BYPASS
FADE
SHUTDOWN
LOUT+
PGND
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
C
S
C
i
V
DD
Right HP
Audio Source
C
i
C
i
C
S
C
i
C
i
C
i
C
S
Power Supply
Right Line
Audio Source
Left Line
Audio Source
Left HP
Audio Source
Power Supply
V
DD
100 k
100 k
C
C
In From DAC
or
Potentiometer
(DC Voltage)
C
(BYP)
System
Control
C
C
Right
Speaker
Left
Speaker
Headphone
s
1 k
1 k
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
10
20
30
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
Volume [Pin 21] - V
DC VOLUME CONTROL
SE Volume,
SEDIFF [Pin 20] = 0 V
SE Volume,
SEDIFF [Pin 20] = 1 V
V
olume - dB
BTL Volume
BTL Volume (dB)
Volume (V)
SE Volume (dB)
Volume (V) - SEDIFF
(V)
TPA6011A4
SLOS392A FEBRUARY 2002 REVISED JULY 2004
3-W STEREO AUDIO POWER AMPLIFIER
WITH ADVANCED DC VOLUME CONTROL
Advanced DC Volume Control With 2-dB
The TPA6011A4 is a stereo audio power amplifier
Steps
that drives 3 W/channel of continuous RMS power
From -40 dB to 20 dB
into a 3-
load. Advanced dc volume control
minimizes external components and allows BTL
Fade Mode
(speaker) volume control and SE (headphone) vol-
Maximum Volume Setting for SE Mode
ume control. Notebook and pocket PCs benefit from
Adjustable SE Volume Control
the integrated feature set that minimizes external
Referenced to BTL Volume Control
components without sacrificing functionality.
3 W Into 3-
Speakers
To simplify design, the speaker volume level is
adjusted by applying a dc voltage to the VOLUME
Stereo Input MUX
terminal. Likewise, the delta between speaker volume
Differential Inputs
and headphone volume can be adjusted by applying
a dc voltage to the SEDIFF terminal. To avoid an
unexpected
high
volume
level
through
the
Notebook PC
headphones, a third terminal, SEMAX, limits the
LCD Monitors
headphone volume level when a dc voltage is ap-
plied. Finally, to ensure a smooth transition between
Pocket PC
active and shutdown modes, a fade mode ramps the
volume up and down.
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.
PRODUCTION DATA information is current as of publication date.
Copyright 20022004, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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ABSOLUTE MAXIMUM RATINGS
DISSIPATION RATING TABLE
RECOMMENDED OPERATING CONDITIIONS
TPA6011A4
SLOS392A FEBRUARY 2002 REVISED JULY 2004
AVAILABLE OPTIONS
PACKAGE
T
A
24-PIN TSSOP (PWP)
(1)
40
C to 85
C
TPA6011A4PWP
(1)
The PWP package is available taped and reeled. To order a taped
and reeled part, add the suffix R to the part number
(e.g., TPA6011A4PWPR).
over operating free-air temperature range (unless otherwise noted)
(1)
UNIT
V
SS
Supply voltage, V
DD
, PV
DD
-0.3 V to 6 V
V
I
Input voltage
-0.3 V to V
DD
+0.3 V
Continuous total power dissipation
See Dissipation Rating Table
T
A
Operating free-air temperature range
-40
C to 85
C
T
J
Operating junction temperature range
-40
C to 150
C
T
stg
Storage temperature range
-65
C to 150
C
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds
260
C
(1)
Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating
conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
T
A
25
C
DERATING FACTOR
T
A
= 70
C
T
A
= 85
C
PACKAGE
POWER RATING
ABOVE T
A
= 25
C
POWER RATING
POWER RATING
PWP
2.7 mW
21.8 mW/
C
1.7 W
1.4 W
MIN
MAX
UNIT
V
SS
Supply voltage, V
DD
, PV
DD
4.0
5.5
V
SE/BTL, HP/LINE, FADE
0.8
V
DD
V
V
IH
High-level input voltage
SHUTDOWN
2
V
SE/BTL, HP/LINE, FADE
0.6
V
DD
V
V
IL
Low-level input voltage
SHUTDOWN
0.8
V
T
A
Operating free-air temperature
-40
85
C
2
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ELECTRICAL CHARACTERISTICS
OPERATING CHARACTERISTICS
TPA6011A4
SLOS392A FEBRUARY 2002 REVISED JULY 2004
T
A
= 25
C, V
DD
= PV
DD
= 5.5 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
V
DD
= 5.5 V, Gain = 0 dB, SE/BTL = 0 V
30
mV
| V
OO
|
Output offset voltage (measured differentially)
V
DD
= 5.5 V, Gain = 20 dB, SE/BTL = 0 V
50
mV
PSRR
Power supply rejection ratio
V
DD
= PV
DD
= 4.0 V to 5.5 V
-42
-70
dB
High-level input current (SE/BTL, FADE, HP/LINE,
V
DD
= PV
DD
= 5.5 V,
| I
IH
|
1
A
SHUTDOWN, SEDIFF, SEMAX, VOLUME)
V
I
= V
DD
= PV
DD
Low-level input current (SE/BTL, FADE, HP/LINE,
| I
IL
|
V
DD
= PV
DD
= 5.5 V, V
I
= 0 V
1
A
SHUTDOWN, SEDIFF, SEMAX, VOLUME)
V
DD
= PV
DD
= 5.5 V, SE/BTL = 0 V,
6.0
7.5
9.0
SHUTDOWN = 2 V
I
DD
Supply current, no load
mA
V
DD
= PV
DD
= 5.5 V, SE/BTL = 5.5 V,
3.0
5
6
SHUTDOWN = 2 V
V
DD
= 5 V = PV
DD
, SE/BTL = 0 V,
I
DD
Supply current, max power into a 3-
load
SHUTDOWN = 2 V, R
L
= 3
,
1.5
A
RMS
P
O
= 2 W, stereo
I
DD(SD)
Supply current, shutdown mode
SHUTDOWN = 0.0 V
1
20
A
T
A
= 25
C, V
DD
= PV
DD
= 5 V, R
L
= 3
, Gain = 6 dB (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
THD = 1%, f = 1 kHz
2
P
O
Output power
W
THD = 10%, f = 1 kHz, V
DD
= 5.5 V
3
THD+N
Total harmonic distortion + noise
P
O
= 1 W, R
L
= 8
, f = 20 Hz to 20 kHz
<0.4%
V
OH
High-level output voltage
R
L
= 8
, Measured between output and V
DD
700
mV
V
OL
Low-level output voltage
R
L
= 8
, Measured between output and GND
400
mV
V
(Bypass
Bypass voltage (Nominally V
DD
/2)
Measured at pin 17, No load, V
DD
= 5.5 V
2.65
2.75
2.85
V
)
B
OM
Maximum output power bandwidth
THD = 5%
>20
kHz
BTL
-63
dB
Supply ripple rejection ratio
f = 1 kHz, Gain = 0 dB, C
(BYP)
= 0.47 F
SE
-57
dB
f = 20 Hz to20 kHz, Gain = 0 dB,
Noise output voltage
BTL
36
V
RMS
C
(BYP)
= 0.47 F
Z
I
Input impedance (see Figure 26)
VOLUME = 5.0 V
14
k
3
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1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
PGND
ROUT-
PV
DD
RHPIN
RLINEIN
RIN
V
DD
LIN
LLINEIN
LHPIN
PV
DD
LOUT-
ROUT+
SE/BTL
HP/LINE
VOLUME
SEDIFF
SEMAX
AGND
BYPASS
FADE
SHUTDOWN
LOUT+
PGND
PWP PACKAGE
(TOP VIEW)
TPA6011A4
SLOS392A FEBRUARY 2002 REVISED JULY 2004
Terminal Functions
TERMINAL
I/O
DESCRIPTION
NAME
NO.
PGND
1, 13
-
Power ground
LOUT-
12
O
Left channel negative audio output
PV
DD
3, 11
-
Supply voltage terminal for power stage
LHPIN
10
I
Left channel headphone input, selected when HP/LINE is held high
LLINEIN
9
I
Left channel line input, selected when HP/LINE is held low
LIN
8
I
Common left channel input for fully differential input. AC ground for single-ended inputs.
V
DD
7
-
Supply voltage terminal
RIN
6
I
Common right channel input for fully differential input. AC ground for single-ended inputs.
RLINEIN
5
I
Right channel line input, selected when HP/LINE is held low
RHPIN
4
I
Right channel headphone input, selected when HP/LINE is held high
ROUT-
2
O
Right channel negative audio output
ROUT+
24
O
Right channel positive audio output
SHUTDOWN
15
I
Places the amplifier in shutdown mode if a TTL logic low is placed on this terminal
Places the amplifier in fade mode if a logic low is placed on this terminal; normal operation if a logic high is
FADE
16
I
placed on this terminal
BYPASS
17
I
Tap to voltage divider for internal midsupply bias generator used for analog reference
AGND
18
-
Analog power supply ground
SEMAX
19
I
Sets the maximum volume for single ended operation. DC voltage range is 0 to V
DD
.
SEDIFF
20
I
Sets the difference between BTL volume and SE volume. DC voltage range is 0 to V
DD
.
VOLUME
21
I
Terminal for dc volume control. DC voltage range is 0 to V
DD
.
Input MUX control. When logic high, RHPIN and LHPIN inputs are selected. When logic low, RLINEIN and
HP/LINE
22
I
LLINEIN inputs are selected.
Output MUX control. When this terminal is high, SE outputs are selected. When this terminal is low, BTL
SE/BTL
23
I
outputs are selected.
LOUT+
14
O
Left channel positive audio output.
4
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FUNCTIONAL BLOCK DIAGRAM
Power
Management
32-Step
Volume
Control
MUX
Control
R
MUX
RHPIN
ROUT+
SHUTDOWN
ROUT-
PV
DD
PGND
V
DD
BYPASS
AGND
LOUT+
LOUT-
RLINEIN
RIN
HP/LINE
VOLUME
SEDIFF
SEMAX
FADE
_
+
HP/LINE
_
+
_
+
BYP
_
+
BYP
BYP
EN
SE/BTL
L
MUX
_
+
HP/LINE
_
+
_
+
BYP
_
+
BYP
BYP
EN
SE/BTL
SE/BTL
LHPIN
LLINEIN
LIN
TPA6011A4
SLOS392A FEBRUARY 2002 REVISED JULY 2004
NOTE: All resistor wipers are adjusted with 32 step volume control.
5
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