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TPA 311
Technical data
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TEXAS INSTRUMENTS TPA311 Technical data

TPA311
350-mW MONO AUDIO POWER AMPLIFIER
SLOS207C – JANUARY 1998 – REVISED MA Y 2003
D Fully Specified for 3.3-V and 5-V Operation D Wide Power Supply Compatibility
2.5 V – 5.5 V
– 350 mW at V – 250 mW at V – 250 mW at V – 75 mW at V

description

The TPA311 is a bridge-tied load (BTL) or single-ended (SE) audio power amplifier devel­oped especially for low-voltage applications where internal speakers and external earphone operation are required. Operating with a 3.3-V
DD
= 8 Ω
L
= 5 V, BTL
DD
= 5 V, SE
DD
= 3.3 V, BTL
DD
= 3.3 V, SE
D Shutdown Control
– I
= 7 µA at 3.3 V
DD
– I
= 60 µA at 5 V
DD
D BTL to SE Mode Control D Integrated Depop Circuitry D Thermal and Short-Circuit Protection D Surface Mount Packaging
– SOIC – PowerPAD MSOP
D OR DGN PACKAGE
(TOP VIEW)
SHUTDOWN
BYPASS
SE/BTL
IN
1 2 3 4
V
8 7 6 5
O
GND V
DD
VO+
–
supply, the TPA311 can deliver 250-mW of continuous power into a BTL 8-Ω load at less than 1% THD+N throughout voice band frequencies. Although this device is characterized out to 20 kHz, its operation was optimized for narrower band applications such as cellular communications. The BTL configuration eliminates the need for external coupling capacitors on the output in most applications, which is particularly important for small battery-powered equipment. A unique feature of the TP A31 1 is that it allows the amplifier to switch from BTL to SE on the fly when an earphone drive is required. This eliminates complicated mechanical switching or auxiliary devices just to drive the external load. This device features a shutdown mode for power-sensitive applications with special depop circuitry to virtually eliminate speaker noise when exiting shutdown mode and during power cycling. The TP A31 1 is available in an 8-pin SOIC surface-mount package and the surface-mount PowerP AD MSOP, which reduces board space by 50% and height by 40%.
R
F
Audio
Input
From System Control
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.
R
I
C
I
C
BF
From HP Jack
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.
IN
24BYPASS
SHUTDOWN
1 3
SE/BTL
Bias
Control
VDD/2
6
V
DD
C
S
VO+
–
+
–
+
Copyright 1998 – 2003, Texas Instruments Incorporated
5
VO–8
7
GND
C
C
350 mW
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
1
TPA311 350-mW MONO AUDIO POWER AMPLIFIER
SLOS207C – JANUARY 1998 – REVISED MAY 2003
AVAILABLE OPTIONS PACKAGED DEVICES
T
A
–40°C to 85°C TPA311D TPA311DGN AAB
†
The D and DGN packages are available taped and reeled. T o order a taped and reeled part, add the suffix R to the part number (e.g., TPA311DR).
SMALL OUTLINE
(D)

Terminal Functions

†
MSOP
(DGN)
†
MSOP
Symbolization
TERMINAL
NAME NO.
BYPASS 2 I GND 7 GND is the ground connection.
IN 4 I IN is the audio input terminal. SE/BTL 3 I SHUTDOWN 1 I SHUTDOWN places the entire device in shutdown mode when held high (IDD = 60 µA, VDD = 5 V).
V
DD
VO+ 5 O VO+ is the positive output for BTL and SE modes. VO– 8 O VO– is the negative output in BTL mode and a high-impedance output in SE mode.
I/O
BYPASS is the tap to the voltage divider for internal mid-supply bias. This terminal should be connected to a 0.1-µF to 1-µF capacitor when used as an audio amplifier.
When SE/BTL is held low, the TPA311 is in BTL mode. When SE/BTL is held high, the TPA311 is in SE mode.
6 VDD is the supply voltage terminal.
DESCRIPTION
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage, VDD 6 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage, V
Continuous total power dissipation internally limited (see Dissipation Rating Table). . . . . . . . . . . . . . . . . . . . .
Operating free-air temperature range, T Operating junction temperature range, T Storage temperature range, T
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds 260°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
‡
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.
–0.3 V to VDD +0.3 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
I
(see Table 3) –40°C to 85°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A
–40°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
–65°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
stg
J
‡
DISSIPATION RATING TABLE
PACKAGE
D 725 mW 5.8 mW/°C 464 mW 377 mW
DGN 2.14 W
§
Please see the Texas Instruments document, PowerP AD Thermally Enhanced Package Application Report (literature number SLMA002), for more information on the PowerPAD package. The thermal data was measured on a PCB layout based on the information in the section entitled T exas Instruments Recommended Board for PowerPAD on page 33 of the before mentioned document.
2
TA ≤ 25°C DERATING FACTOR TA = 70°C TA = 85°C
§
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
17.1 mW/°C 1.37 W 1.11 W
TPA311
Á
Á
Á
Á
Á
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Á
Á
Á
Á
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Á
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БББББББББ
350-mW MONO AUDIO POWER AMPLIFIER
SLOS207C – JANUARY 1998 – REVISED MAY 2003

recommended operating conditions

MIN MAX UNIT
Supply voltage, V
High-level voltage, V
Low-level voltage, V
DD
IH
SE/BTL SHUTDOWN
SHUTDOWN
IL
SE/BTL
Operating free-air temperature, TA (see Table 3)
electrical characteristics at specified free-air temperature, VDD = 3.3 V , TA = 25°C (unless otherwise noted)
PARAMETER TEST CONDITIONS
|VOO|
PSRR
I
DD
Á
I
DD(SD)
Á
|IIH|
|IIL|
Output offset voltage (measured differentially)
Power supply rejection ratio
Supply current (see Figure 6)
ББББББББББ
Supply current, shutdown mode (see Figure 7)
ББББББББББ
High-level input current
Low-level input current
p
p
SHUTDOWN = 0 V, SE/BTL = 0 V, RL = 8 Ω, RF = 10 kΩ
VDD = 3.2 V to 3.4 V SHUTDOWN = 0 V,
SE/BTL
= 0.33 V, RF = 10 kΩ
SHUTDOWN = 0 V,
БББББББ
SE/BTL
= 2.97 V, RF = 10 kΩ
BTL mode SE mode
BTL mode
SE mode
ÁÁ
SHUTDOWN = VDD, SE/BTL = 0 V, RF = 10 kΩ
ББББББББББ
SHUTDOWN, VDD = 3.3 V, VI = V SE/BTL, VDD = 3.3 V, VI = V
DD
DD
SHUTDOWN, VDD = 3.3 V, VI = 0 V SE/BTL, VDD = 3.3 V, VI = 0 V
0.9 V
0.9 V
2.5 DD DD
–40
0.1 V
0.1 V
5.5
DD DD
85
MIN TYP MAX UNIT
5
20
85 83
0.7
1.5
0.35
ÁÁÁ
ÁÁÁ
0.75
Á
7
50
Á
1 1 1 1
mV
mA
Á
Á
V
V
V
°C
dB
µA
µA
µA
operating characteristics, VDD = 3.3 V, T
= 25°C, R
A
= 8 Ω
L
PARAMETER TEST CONDITIONS
P
O
THD + N
ÁÁ
B
OM
B
1
ÁÁ
ÁÁ
V
n
Output power, see Note 1 Total harmonic distortion plus
noise
БББББББ
Maximum output power bandwidth Unity-gain bandwidth
БББББББÁÁÁÁ
Supply ripple rejection ratio
БББББББ
Noise output voltage
THD = 0.5%, THD = 0.5%, PO = 250 mW,
See Figure 12
ÁÁÁ
AV = – 2 V/V, Open loop, f = 1 kHz,
See Figure 5 f = 1 kHz,
See Figure 3
ÁÁÁ
AV = – 1 V/V, BTL,
BTL mode, SE mode f = 20 Hz to 4 kHz,
ÁÁÁÁ
THD = 3%, See Figure 36 CB = 1 µF,
ÁÁÁÁ
CB = 1 µF,
ÁÁÁÁ
CB = 0.1 µF, See Figure 42
NOTE 1: Output power is measured at the output terminals of the device at f = 1 kHz.
See Figure 14
AV = – 2 V/V,
ÁÁÁ
See Figure 12
BTL mode,
ÁÁÁ
SE mode,
ÁÁÁ
RL = 32 Ω,
MIN TYP MAX UNIT
250 110
ÁÁÁ
1.3%
1.4
ÁÁÁ
10
71
ÁÁÁ
ÁÁÁ
mW
kHz
MHz
86
ÁÁÁ
15
ÁÁÁ
µV(rms)
dB
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
3
TPA311
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
350-mW MONO AUDIO POWER AMPLIFIER
SLOS207C – JANUARY 1998 – REVISED MAY 2003
electrical characteristics at specified free-air temperature, VDD = 5 V , TA = 25°C (unless otherwise noted)
PARAMETER TEST CONDITIONS
|VOO|
ÁÁ
PSRR
ÁÁÁББББББББББÁБББББББ
I
DD
ÁÁ
I
DD(SD)
|IIH|
|IIL|
Output offset voltage (measured differentially)
ББББББББББ
Power supply rejection ratio
Supply current (see Figure 6)
ББББББББББ
Supply current, shutdown mode (see Figure 7)
High-level input current
Low-level input current
p
p
SHUTDOWN = 0 V, SE/BTL = 0 V, RL = 8 Ω, RF = 10 kΩ
ББББББББББ
VDD = 4.9 V to 5.1 V SHUTDOWN = 0 V,
SE/BTL
= 0.5 V, RF = 10 kΩ
SHUTDOWN = 0 V, SE/BTL
= 4.5 V, RF = 10Ω
БББББББ
SHUTDOWN = VDD, SE/BTL = 0 V, RF = 10 kΩ,
SHUTDOWN, VDD = 5.5 V, VI = V SE/BTL, VDD = 5.5 V, VI = V SHUTDOWN, VDD = 5.5 V, VI = 0 V SE/BTL, VDD = 5.5 V, VI = 0 V
BTL mode SE mode
BTL mode
SE mode
DD
ÁÁ
ÁÁ
DD
MIN TYP MAX UNIT
5
20
ÁÁÁ
78 76
ÁÁÁ
0.7
Á
1.5
Á
mV
Á
dB
Á
mA
0.35
60
0.75
Á
100
Á
µA
1
µA
1 1
µA
1
ÁÁÁ
operating characteristics, VDD = 5 V, T
= 25°C, R
A
= 8 Ω
L
PARAMETER TEST CONDITIONS
P
O
THD + N B
OM
B
1
Output power, see Note 2 Total harmonic distortion plus
noise Maximum output power bandwidth Unity-gain bandwidth
THD = 0.5%, THD = 0.5%, PO = 350 mW,
See Figure 16 AV = – 2 V/V, Open loop, f = 1 kHz,
ÁÁÁББББББББÁÁÁÁ
Supply ripple rejection ratio
See Figure 5 f = 1 kHz,
BTL mode, SE mode f = 20 Hz to 4 kHz,
THD = 2%, See Figure 37 CB = 1 µF,
ÁÁÁÁ
CB = 1 µF,
See Figure 4
V
n
ÁÁ
Noise output voltage
ББББББББ
AV = – 1 V/V, BTL,
ÁÁÁ
CB = 0.1 µF, See Figure 43
ÁÁÁÁ
NOTE 2: Output power is measured at the output terminals of the device at f = 1 kHz.
See Figure 18
AV = – 2 V/V,
See Figure 16
BTL mode,
ÁÁÁ
SE mode,
RL = 32 Ω,
ÁÁÁ
MIN TYP MAX UNIT
700 300
mW
1%
10
1.4
kHz
MHz
65
ÁÁÁ
ÁÁÁ
dB
75
ÁÁÁ
15
µV(rms)
ÁÁÁ
4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
Audio
Input
C
I
R
I
C
0.1 µF
TPA311
350-mW MONO AUDIO POWER AMPLIFIER
SLOS207C – JANUARY 1998 – REVISED MAY 2003

PARAMETER MEASUREMENT INFORMATION

6
V
DD
R
F
IN
24BYPASS
B
VDD/2
VO+
–
+
5
RL = 8
C
S
1 µF
V
DD
Ω
Audio
Input
C
I
0.1 µF
SHUTDOWN
1 3
SE/BTL
–
+
Bias
Control
VO– 8
7
GND
Figure 1. BTL Mode Test Circuit
6
V
DD
R
F
R
I
C
B
IN
24BYPASS
VDD/2
VO+
–
+
5
C
C
330 µF
C
S
1 µF
RL = 32
V
DD
Ω
–
+
SHUTDOWN
1 3
V
DD
SE/BTL
Bias
Control
VO– 8
7
GND
Figure 2. SE Mode Test Circuit
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
5
TPA311 350-mW MONO AUDIO POWER AMPLIFIER
SLOS207C – JANUARY 1998 – REVISED MAY 2003

TYPICAL CHARACTERISTICS

Table of Graphs

Supply voltage rejection ratio vs Frequency 3, 4, 5
I
DD
P
O
THD+N Total harmonic distortion plus noise
V
n
P
D
Supply current vs Supply voltage 6, 7
Output power
Open loop gain and phase vs Frequency 36, 37 Closed loop gain and phase vs Frequency 38, 39, 40, 41 Output noise voltage vs Frequency 42, 43 Power dissipation vs Output power 44, 45, 46, 47
FIGURE
vs Supply voltage 8, 9 vs Load resistance
vs Frequency
vs Output power
10, 11
12, 13, 16, 17, 20, 21, 24, 25, 28, 29,
32, 33
14, 15, 18, 19, 22, 23, 26, 27, 30, 31,
34, 35
SUPPLY VOLTAGE REJECTION RATIO
0
–10 –20
–30
–40
Supply Voltage Rejection Ratio – dB
–50
–60 –70
–80
–90
–100
CB = 1 µF
BYPASS = 1/2 V
20 100 1 k
vs
FREQUENCY
CB = 0.1 µF
DD
f – Frequency – Hz
Figure 3
VDD = 3.3 V RL = 8 Ω SE
10 k 20 k
SUPPLY VOLTAGE REJECTION RATIO
0
–10 –20
–30
–40 –50
–60 –70
–80
Supply Voltage Rejection Ratio – dB
–90
–100
CB = 1 µF
BYPASS = 1/2 V
20 100 1 k
vs
FREQUENCY
VDD = 5 V RL = 8 Ω SE
CB = 0.1 µF
DD
10 k 20 k
f – Frequency – Hz
Figure 4
6
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
350-mW MONO AUDIO POWER AMPLIFIER
TYPICAL CHARACTERISTICS
TPA311
SLOS207C – JANUARY 1998 – REVISED MAY 2003
SUPPLY VOLTAGE REJECTION RATIO
0
RL = 8 Ω
–10
CB = 1 µF BTL
–20
–30
–40 –50
–60 –70
–80
Supply Voltage Rejection Ratio – dB
–90
–100
20 100 1 k
vs
FREQUENCY
VDD = 5 V
VDD = 3.3 V
f – Frequency – Hz
Figure 5
90
80
70
1.1
0.9
0.7
0.5
0.3
– Supply Current – mA
DD
I
0.1
10 k 20 k
–0.1
SUPPLY CURRENT (SHUTDOWN)
vs
SUPPLY VOLTAGE
SHUTDOWN = V SE/BTL
= 0 V
RF = 10 kΩ
DD
SUPPLY CURRENT
SUPPLY VOLTAGE
SHUTDOWN = 0 V RF = 10 kΩ
34 62 5
VDD – Supply Voltage – V
Figure 6
vs
SE/BTL = 0.1 V
SE/BTL = 0.9 V
DD
DD
– Supply Current – Aµ
DD(SD)
I
60
50
40
30
20 10
0
25
343.5 4.5
VDD – Supply Voltage – V
5.52.5
Figure 7
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
7
TPA311 350-mW MONO AUDIO POWER AMPLIFIER
SLOS207C – JANUARY 1998 – REVISED MAY 2003
TYPICAL CHARACTERISTICS
– Output Power – mW
O
P
1000
800
600
400
200
800
700
OUTPUT POWER
vs
SUPPLY VOLTAGE
THD+N 1% BTL
RL = 8 Ω
RL = 32 Ω
0
2.5 3.53 4 5.5
2
VDD – Supply Voltage – V
4.5 5
Figure 8
OUTPUT POWER
vs
LOAD RESISTANCE
THD+N = 1% BTL
– Output Power – mW
O
P
350
300
250
200
150
100
50
350
300
0
2
THD+N 1% SE
OUTPUT POWER
vs
SUPPLY VOLTAGE
RL = 8 Ω
RL = 32 Ω
343.5 4.5
VDD – Supply Voltage – V
Figure 9
OUTPUT POWER
vs
LOAD RESISTANCE
THD+N = 1% SE
5
5.52.5
600
VDD = 5 V
500
400
– Output Power – mW
O
P
300
200
100
VDD = 3.3 V
0
16 3224 40 64
8
RL – Load Resistance – Ω
48 56
Figure 10
8
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
– Output Power – mW
O
P
250
200
150
100
50
VDD = 5 V
VDD = 3.3 V
0
14 2620 32 5083844
RL – Load Resistance – Ω
56 62
Figure 11
350-mW MONO AUDIO POWER AMPLIFIER
TYPICAL CHARACTERISTICS
TPA311
SLOS207C – JANUARY 1998 – REVISED MAY 2003
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
FREQUENCY
10
VDD = 3.3 V PO = 250 mW RL = 8 Ω BTL
1
AV = –10 V/V
0.1
THD+N –Total Harmonic Distortion + Noise – %
0.01 20 1k 10k
AV = –20 V/V
AV = –2 V/V
f – Frequency – Hz
Figure 12
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
OUTPUT POWER
10
VDD = 3.3 V f = 1 kHz AV = –2 V/V BTL
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
FREQUENCY
10
VDD = 3.3 V RL = 8 Ω AV = –2 V/V BTL
1
0.1
THD+N –Total Harmonic Distortion + Noise – %
20k100
0.01 20 1k 10k
PO = 250 mW
f – Frequency – Hz
PO = 50 mW
PO = 125 mW
20k100
Figure 13
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
OUTPUT POWER
10
f = 20 kHz
f = 10 kHz
1
RL = 8 Ω
0.1
THD+N –Total Harmonic Distortion + Noise – %
0.01
0.04 0.1 0.4
0.16 0.22 0.28 0.34
PO – Output Power – W
Figure 14
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
1
f = 1 kHz
0.1 f = 20 Hz
THD+N –Total Harmonic Distortion + Noise – %
0.01
0.01 0.1 1 PO – Output Power – W
VDD = 3.3 V RL = 8 Ω AV = –2 V/V BTL
Figure 15
9
TPA311 350-mW MONO AUDIO POWER AMPLIFIER
SLOS207C – JANUARY 1998 – REVISED MAY 2003
TYPICAL CHARACTERISTICS
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
FREQUENCY
10
VDD = 5 V PO = 350 mW RL = 8 Ω BTL
1
AV = –10 V/V
0.1
THD+N –Total Harmonic Distortion + Noise – %
0.01 20 1k 10k
AV = –20 V/V
AV = –2 V/V
f – Frequency – Hz
Figure 16
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
OUTPUT POWER
10
VDD = 5 V f = 1 kHz AV = –2 V/V BTL
1
RL = 8 Ω
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
FREQUENCY
10
VDD = 5 V RL = 8 Ω AV = –2 V/V BTL
1
0.1
THD+N –Total Harmonic Distortion + Noise – %
20k100
0.01 20 1k 10k
PO = 350 mW
f – Frequency – Hz
PO = 50 mW
PO = 175 mW
20k100
Figure 17
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
OUTPUT POWER
10
f = 20 kHz
f = 10 kHz
1
f = 1 kHz
10
0.1
THD+N –Total Harmonic Distortion + Noise – %
0.01
0.1 0.25 10.40 0.55 0.70 0.85 PO – Output Power – W
Figure 18
0.1
VDD = 5 V RL = 8 Ω AV = –2 V/V
THD+N –Total Harmonic Distortion + Noise – %
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
BTL
0.01
0.01 0.1 1
f = 20 Hz
PO – Output Power – W
Figure 19
350-mW MONO AUDIO POWER AMPLIFIER
TYPICAL CHARACTERISTICS
TPA311
SLOS207C – JANUARY 1998 – REVISED MAY 2003
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
FREQUENCY
10
VDD = 3.3 V PO = 30 mW RL = 32 Ω SE
1
0.1 AV = –1 V/V
AV = –10 V/V
0.01 AV = –5 V/V
THD+N –Total Harmonic Distortion + Noise – %
0.001 20 1k 10k
f – Frequency – Hz
Figure 20
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
OUTPUT POWER
10
VDD = 3.3 V f = 1 kHz RL = 32 Ω AV = –1 V/V SE
1
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
FREQUENCY
10
VDD = 3.3 V RL = 32 Ω AV = –1 V/V SE
1
PO = 10 mW
0.1
0.01 PO = 15 mW
THD+N –Total Harmonic Distortion + Noise – %
20k100
0.001
PO = 30 mW
20 1k 10k
f – Frequency – Hz
20k100
Figure 21
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
OUTPUT POWER
10
1
f = 20 kHz
f = 10 kHz
VDD = 3.3 V RL = 32 Ω AV = –1 V/V SE
0.1
THD+N –Total Harmonic Distortion + Noise – %
0.01
0.02 0.025 0.050.03 0.035 0.04 0.045 PO – Output Power – W
Figure 22
0.1
f = 20 Hz
THD+N –Total Harmonic Distortion + Noise – %
0.01
0.002 0.03 0.050.01
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
f = 1 kHz
0.02
PO – Output Power – W
Figure 23
11
TPA311 350-mW MONO AUDIO POWER AMPLIFIER
SLOS207C – JANUARY 1998 – REVISED MAY 2003
TYPICAL CHARACTERISTICS
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
FREQUENCY
10
VDD = 5 V PO = 60 mW RL = 32 Ω SE
1
AV = –10 V/V
0.1
AV = –5 V/V
0.01
THD+N –Total Harmonic Distortion + Noise – %
0.001 20 1k 10k
AV = –1 V/V
f – Frequency – Hz
Figure 24
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
OUTPUT POWER
10
VDD = 5 V f = 1 kHz RL = 32 Ω AV = –1 V/V SE
1
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
FREQUENCY
10
VDD = 5 V RL = 32 Ω AV = –1 V/V SE
1
PO = 15 mW
0.1
PO = 30 mW
0.01
PO = 60 mW
THD+N –Total Harmonic Distortion + Noise – %
20k100
0.001 20 1k 10k
f – Frequency – Hz
20k100
Figure 25
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
OUTPUT POWER
10
f = 20 kHz
1
f = 10 kHz
12
0.1
THD+N –Total Harmonic Distortion + Noise – %
0.01
0.02 0.04 0.140.06 0.08 0.1 0.12 PO – Output Power – W
Figure 26
0.1
THD+N –Total Harmonic Distortion + Noise – %
0.01
0.002 0.1 0.20.01
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
f = 1 kHz
f = 20 Hz
VDD = 5 V RL = 32 Ω AV = –1 V/V SE
PO – Output Power – W
Figure 27
350-mW MONO AUDIO POWER AMPLIFIER
TYPICAL CHARACTERISTICS
TPA311
SLOS207C – JANUARY 1998 – REVISED MAY 2003
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
FREQUENCY
1
VDD = 3.3 V PO = 0.1 mW RL = 10 kΩ SE
0.1 AV = –1 V/V
AV = –2 V/V
AV = –5 V/V
THD+N –Total Harmonic Distortion + Noise – %
0.01 20 1k 10k
f – Frequency – Hz
Figure 28
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
OUTPUT POWER
10
VDD = 3.3 V f = 1 kHz RL = 10 kΩ AV = –1 V/V
1
SE
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
FREQUENCY
1
VDD = 3.3 V RL = 10 kΩ AV = –1 V/V SE
PO = 0.05 mW
0.1
THD+N –Total Harmonic Distortion + Noise – %
20k100
0.01 20 1 k 10 k
f – Frequency – Hz
PO = 0.13 mW
PO = 0.1 mW
20 k100
Figure 29
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
OUTPUT POWER
10
VDD = 3.3 V RL = 10 kΩ AV = –1 V/V SE
1
0.1
0.01
THD+N –Total Harmonic Distortion + Noise – %
0.001 50 75 200100 125 150 175
PO – Output Power – µW
Figure 30
0.1
0.01
THD+N –Total Harmonic Distortion + Noise – %
0.001 5 100 500
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
f = 20 Hz
10
f = 20 kHz
f = 10 kHz
PO – Output Power – µW
Figure 31
f = 1 kHz
13
TPA311 350-mW MONO AUDIO POWER AMPLIFIER
SLOS207C – JANUARY 1998 – REVISED MAY 2003
TYPICAL CHARACTERISTICS
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
FREQUENCY
1
VDD = 5 V PO = 0.3 mW RL = 10 kΩ SE
0.1
AV = –1 V/V
AV = –2 V/V
THD+N –Total Harmonic Distortion + Noise – %
0.01 20 1k 10k
AV = –5 V/V
f – Frequency – Hz
Figure 32
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
OUTPUT POWER
10
VDD = 5 V f = 1 kHz RL = 10 kΩ AV = –1 V/V
1
SE
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
FREQUENCY
1
VDD = 5 V RL = 10 kΩ AV = –1 V/V SE
PO = 0.3 mW
0.1
THD+N –Total Harmonic Distortion + Noise – %
20k100
0.01 20 1k 10k
f – Frequency – Hz
PO = 0.2 mW
PO = 0.1 mW
20k100
Figure 33
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
OUTPUT POWER
10
VDD = 5 V RL = 10 kΩ AV = –1 V/V SE
1
14
0.1
0.01
THD+N –Total Harmonic Distortion + Noise – %
0.001 50 125 500200 275 350 425
PO – Output Power – µW
Figure 34
0.1
0.01
THD+N –Total Harmonic Distortion + Noise – %
0.001 5 100 500
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
f = 20 kHz
f = 20 Hz
f = 1 kHz
f = 10 kHz
10
PO – Output Power – µW
Figure 35
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