Texas Instruments TPA0202PWPR, TPA0202EVM, TPA0202PWP Datasheet
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.
TP A0202
2-W STEREO AUDIO POWER AMPLIFIER
SLOS205A – FEBRUARY 1998 – REVISED MARCH 2000
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
D
Integrated Depop Circuitry
D
High Power with PC Power Supply
– 2 W/Ch at 5 V into a 3-Ω Load
– 800 mW/Ch at 3 V
D
Fully Specified for Use With 3-Ω Loads
D
Ultra-Low Distortion
– 0.05% THD+N at 2 W and 3-Ω Load
D
Bridge-Tied Load (BTL) or Single-Ended
(SE) Modes
D
Stereo Input MUX
D
Surface-Mount Power Package
24-Pin TSSOP PowerP AD
D
Shutdown Control ...IDD = 5 µA
C
B
C
S
Right
MUX
RLINEIN
RHPIN
Left
MUX
LHPIN
LLINEIN
Bias, Mute,
Shutdown,
and SE/BTL
MUX Control
+
–
+
–
RBYPASS
MUTE IN
MUTE OUT
SHUTDOWN
LBYPASS
ROUT+
ROUT–
RV
DD
LV
DD
LOUT+
LOUT–
SE/BTL
HP/LINE
C
IR
R
IR
R
FR
C
FR
System
Control
C
IL
R
IL
NC
NC
4
5
6
8
9
11
19
20
21
R
FL
C
FL
100 kΩ
100 kΩ
V
DD
V
DD
C
OUTR
C
OUTL
10
3
16
7
14
18
15
22
1 kΩ
1 kΩ
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
GND/HS
TJ
LOUT+
LLINEIN
LHPIN
LBYPASS
LV
DD
SHUTDOWN
MUTE OUT
LOUT–
MUTE IN
GND/HS
GND/HS
NC
ROUT+
RLINEIN
RHPIN
RBYPASS
RV
DD
NC
HP/LINE
ROUT–
SE/BTL
GND/HS
PWP PACKAGE
(TOP VIEW)
Copyright 2000, Texas Instruments Incorporated
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.
PowerPAD is a trademark of Texas Instruments Incorporated.
TPA0202
2-W STEREO AUDIO POWER AMPLIFIER
SLOS205A – FEBRUARY 1998 – REVISED MARCH 2000
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
description
The TPA0202 is a stereo audio power amplifier in a 24-pin TSSOP thermal package capable of delivering
greater than 2 W of continuous RMS power per channel into 3-Ω loads. The TP A0202 simplifies design and frees
up board space for other features. Full power distortion levels of less than 0.1% THD+N from a 5-V supply are
typical. Low-voltage applications are also well served by the TP A0202 providing 800-mW per channel into 3-Ω
loads with a 3.3-V supply voltage.
The TP A0202 has integrated depop circuitry that virtually eliminates transients that cause noise in the speakers
during power up and when using the mute and shutdown modes.
Amplifier gain is externally configured by means of two resistors per input channel and does not require external
compensation for settings of 2 to 20 in BTL mode (1 to 10 in SE mode). An internal input MUX allows two sets
of stereo inputs to the amplifier. In notebook applications, where internal speakers are driven as BTL and the
line (often headphone drive) outputs are required to be SE, the TP A0202 automatically switches into SE mode
when the SE/BTL
input is activated. Using the TP A0202 to drive line outputs up to 700 mW/channel into external
3-Ω loads is ideal for small non-powered external speakers in portable multimedia systems. The TP A0202 also
features a shutdown function for power sensitive applications, holding the supply current at 5 µA.
The PowerP AD package
†
(PWP) delivers a level of thermal performance that was previously achievable only
in TO-220-type packages. Thermal impedances of approximately 35°C/W are readily realized in multilayer PCB
applications. This allows the TP A0202 to operate at full power into 3- Ω loads at ambient temperature of up to
85°C with 300 CFM of forced-air cooling. Into 8-Ω loads, the operating ambient temperature increases to 100°C.
AVAILABLE OPTIONS
PACKAGE
T
A
TSSOP
‡
(PWP)
–40°C to 85°C TPA0202PWP
‡
The PWP packages are available taped and reeled. T o order a taped
and reeled part, add the suffix R (e.g., TPA0202PWPR).
†
See Texas Instruments document,
PowerPAD Thermally Enhanced Package Application Report
(Literature Number SLMA002) for more
information on the PowerPAD package.
TPA0202
2-W STEREO AUDIO POWER AMPLIFIER
SLOS205A – FEBRUARY 1998 – REVISED MARCH 2000
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
Terminal Functions
TERMINAL
NAME NO.
I/O
DESCRIPTION
GND/HS 1, 12,
13, 24
Ground connection for circuitry, directly connected to thermal pad
HP/LINE 16 I Input MUX control input, hold high to select LHP IN or RHP IN (5, 20), hold low to select LLINE IN or
RLINE IN (4, 21)
LBYPASS 6 Tap to voltage divider for left channel internal mid-supply bias
LHP IN 5 I Left channel headphone input, selected when HP/LINE terminal (16) is held high
LLINE IN 4 I Left channel line input, selected when HP/LINE terminal (16) is held low
LOUT+ 3 O Left channel + output in BTL mode, + output in SE mode
LOUT– 10 O Left channel – output in BTL mode, high-impedance state in SE mode
LV
DD
7 I Supply voltage input for left channel and for primary bias circuits
MUTE IN 11 I Mute all amplifiers, hold low for normal operation, hold high to mute
MUTE OUT 9 O Follows MUTE IN terminal (11), provides buffered output
NC 17, 23 No internal connection
RBYPASS 19 Tap to voltage divider for right channel internal mid–supply bias
RHPIN 20 I Right channel headphone input, selected when HP/LINE terminal (16) is held high
RLINEIN 21 I Right channel line input, selected when HP/LINE terminal (16) is held low
ROUT+ 22 O Right channel + output in BTL mode, + output in SE mode
ROUT– 15 O Right channel – output in BTL mode, high impedance state in SE mode
RV
DD
18 I Supply voltage input for right channel
SE/BTL 14 I Hold low for BTL mode, hold high for SE mode
SHUTDOWN 8 I Places entire IC in shutdown mode when held high, I
DD
= 5 µA
TJ 2 O Sources a current proportional to the junction temperature. This terminal should be left unconnected
during normal operation. For more information, see the
junction temperature measurement
section of
this document.
TPA0202
2-W STEREO AUDIO POWER AMPLIFIER
SLOS205A – FEBRUARY 1998 – REVISED MARCH 2000
4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
†
Supply voltage, VDD 6 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage, VI –0.3 V to VDD +0.3 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous total power dissipation internally limited (see Dissipation Rating Table). . . . . . . . . . . . . . . . . . . . .
Operating free-air temperature range, T
A
–40°C to 85°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating junction temperature range, TJ –40°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, T
stg
–65°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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.
DISSIPATION RATING TABLE
PACKAGE
TA ≤ 25°C DERATING FACTOR TA = 70°C TA = 85°C
PWP
‡
2.7 W 21.8 mW/°C 1.7 W 1.4 W
‡
Please see the Texas Instruments document,
PowerPAD 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.
recommended operating conditions
MIN NOM MAX UNIT
Supply Voltage, V
DD
3 5 5.5 V
VDD = 5 V,
250 mW/ch average power,
4-Ω stereo BTL drive,
with proper PCB design
–40 85
Operating free-air temperature, T
A
VDD = 5 V,
2 W/ch average power,
3-Ω stereo BTL drive,
with proper PCB design
and 300 CFM forced-air
cooling
–40 85
°C
p
VDD = 5 V 1.25 4.5
Common mode input voltage, V
ICM
VDD = 3.3 V 1.25 2.7
V
dc electrical characteristics, TA = 25°C
PARAMETER TEST CONDITIONS TYP†MAX UNIT
Stereo BTL 19 25 mA
Stereo SE 9 15 mA
V
DD
= 5
V
Mono BTL 9 15 mA
pp
Mono SE 3 10 mA
IDDSupply current
Stereo BTL 13 20 mA
Stereo SE 5 10 mA
V
DD
=
3.3 V
Mono BTL 5 10 mA
Mono SE 3 6 mA
V
OO
Output offset voltage (measured differentially) VDD = 5 V, Gain = 2, See Note 1 5 25 mV
I
DD(MUTE)
Supply current in mute mode VDD = 5 V 1.5 mA
I
DD(SD)
IDD in shutdown VDD = 5 V 5 15 µA
NOTE 1: At 3 V < VDD < 5 V the dc output voltage is approximately VDD/2.
TPA0202
2-W STEREO AUDIO POWER AMPLIFIER
SLOS205A – FEBRUARY 1998 – REVISED MARCH 2000
5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
ac operating characteristics, V
DD
= 5 V, T
A
= 25°C, R
L
= 3 Ω (unless otherwise noted)
PARAMETER TEST CONDITIONS TYP MAX UNIT
Output power (each channel) see
THD = 0.2%, BTL, See Figure 3 2
P
O
()
Note 2
THD = 1%,
BTL, See Figure 3 2.2
W
p
Po = 2W, f = 20 – 20 kHz, See Figure 5 200 m%
THD+N
Total harmonic distortion plus noise
VI = 1 V, RL = 10 kΩ, AV = 1 V/V 100 m%
B
OM
Maximum output power bandwidth AV = 10 V/V THD < 1 %, See Figure 5 >20 kHz
Phase margin RL = 4 Ω, Open Loop, See Figure 43 85°
pp
pp
f = 1 kHz, See Figure 37 80
Supply ripple rejection ratio
f = 20 – 20 kHz, See Figure 37 60
dB
Mute attenuation 85 dB
Channel-to-channel output separation f = 1 kHz, See Figure 39 85 dB
Line/HP input separation 100 dB
BTL attenuation in SE mode 100 dB
Z
I
Input impedance 2 MΩ
Signal-to-noise ratio Po = 500 mW, BTL 95 dB
V
n
Output noise voltage See Figure 35 21 µV(rms)
NOTE 2: Output power is measured at the output terminals of the IC at 1 kHz.
ac operating characteristics, V
DD
= 3.3 V, T
A
= 25°C, R
L
= 3 Ω
PARAMETER TEST CONDITIONS TYP MAX UNIT
Output power (each channel) see
THD = 0.2%, BTL, See Figure 10 800
P
O
()
Note 2
THD = 1%,
BTL, See Figure 10 900
mW
p
Po = 800 mW, f = 20 – 20 kHz, See Figure 11 350 m%
THD+N
Total harmonic distortion plus noise
VI = 1 V, RL = 10 kΩ, AV = 1 V/V 200 m%
B
OM
Maximum output power bandwidth AV = 10 V/V THD < 1 %, See Figure 1 1 >20 kHz
Phase margin RL = 4 Ω, Open Loop, See Figure 44 85°
pp
pp
f = 1 kHz, See Figure 37 70
Supply ripple rejection ratio
f = 20 – 20 kHz, See Figure 37 55
dB
Mute attenuation 85 dB
Channel-to-channel output separation f = 1 kHz, See Figure 40 85 dB
Line/HP input separation 100 dB
BTL attenuation in SE mode 100 dB
Z
I
Input impedance 2 MΩ
Signal-to-noise ratio Po = 500 mW, BTL 95 dB
V
n
Output noise voltage See Figure 37 21 µV(rms)
NOTE 2: Output power is measured at the output terminals of the IC at 1 kHz.
TPA0202
2-W STEREO AUDIO POWER AMPLIFIER
SLOS205A – FEBRUARY 1998 – REVISED MARCH 2000
6
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
PARAMETER MEASUREMENT INFORMATION
MUX
R
I
C
I
R
F
4.7 µF
C
B
SE/BTL
HP/LINE
RL = 3 Ω or 8 Ω
Figure 1. BTL Test Circuit
MUX
R
I
C
I
R
F
C
B
C
O
SE/BTL
HP/LINE
RL = 3 Ω, 8 Ω, or 32 Ω
4.7 µF
V
DD
Figure 2. SE Test Circuit
TPA0202
2-W STEREO AUDIO POWER AMPLIFIER
SLOS205A – FEBRUARY 1998 – REVISED MARCH 2000
7
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
Table of Graphs
FIGURE
p
vs Frequency
4, 5, 7, 8, 11, 12, 14, 15, 17, 18, 20,
21, 23, 24, 26, 27, 29, 30 32, 33
THD
+
N
Total harmonic distortion plus noise
vs Output power
3, 6, 9, 10, 13, 16, 19, 22, 25, 28, 31,
34
V
n
Output noise voltage vs Frequency 35,36
Supply ripple rejection ratio vs Frequency 37,38
Crosstalk vs Frequency 39 – 42
Open loop response vs Frequency 43,44
Closed loop response vs Frequency 45, 48
I
DD
Supply current vs Supply voltage 49
P
O
Output power
vs Supply voltage
vs Load resistance
50, 51
52, 53
P
D
Power dissipation vs Output power 54 – 57
Figure 3
0.1
0.01
0 0.25 0.5 0.75 1 1.25 1.5
1
10
1.75 2 2.25 2.5
PO – Output Power – W
VDD = 5 V
f = 1 kHz
BTL
THD+N –Total Harmonic Distortion + Noise – %
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
OUTPUT POWER
RL = 8 Ω
RL = 3 Ω
Figure 4
0.01
10
20 100 1 k 10 k 20 k
THD+N –Total Harmonic Distortion + Noise – %
f – Frequency – Hz
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
FREQUENCY
1
0.1
VDD = 5 V
PO = 1.5 W
RL = 4 Ω
BTL
AV = –2 V/V
AV = –20 V/V
AV = –10 V/V (RL = 3 Ω, PO = 2 W)
AV = –10 V/V
TPA0202
2-W STEREO AUDIO POWER AMPLIFIER
SLOS205A – FEBRUARY 1998 – REVISED MARCH 2000
8
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
Figure 5
PO = 1.5 W
PO = 0.25 W
VDD = 5 V
RL = 4 Ω
AV = –2 V/V
BTL
0.1
0.01
20 100 1 k
1
10
10 k 20 k
THD+N –Total Harmonic Distortion + Noise – %
f – Frequency – Hz
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
FREQUENCY
PO = 0.75 W
PO = 2 W, RL = 3 Ω
Figure 6
f = 20 kHz
f = 1 kHz
f = 20 Hz
0.1
0.01
0.01 0.1
1
10
110
PO – Output Power – W
VDD = 5 V
RL = 3 Ω
BTL
THD+N –Total Harmonic Distortion + Noise – %
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
OUTPUT POWER
Figure 7
0.1
0.01
20 100 1 k
1
10
10 k 20 k
THD+N –Total Harmonic Distortion + Noise – %
f – Frequency – Hz
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
FREQUENCY
PO = 1 W
VDD = 5 V
RL = 8 Ω
AV = –2 V/V
BTL
PO = 0.25 W
PO = 0.5 W
Figure 8
0.1
0.01
20 100 1 k
1
10
10 k 20 k
THD+N –Total Harmonic Distortion + Noise – %
f – Frequency – Hz
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
FREQUENCY
VDD = 5 V
PO = 1 W
RL = 8 Ω
BTL
AV = –2 V/V
AV =– 20 V/V
AV = –10 V/V
TPA0202
2-W STEREO AUDIO POWER AMPLIFIER
SLOS205A – FEBRUARY 1998 – REVISED MARCH 2000
9
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
Figure 9
0.1
0.01
0.01 0.1
1
10
110
f = 20 kHz
f = 1 kHz
f = 20 Hz
PO – Output Power – W
VDD = 5 V
RL = 8 Ω
AV = –2 V/V
BTL
THD+N –Total Harmonic Distortion + Noise – %
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
OUTPUT POWER
Figure 10
0.1
0.01
0 0.1 0.2 0.3 0.4 0.5 0.6
1
10
0.7 0.8 0.9 1
PO – Output Power – W
VDD = 3.3 V
f = 1 kHz
BTL
THD+N –Total Harmonic Distortion + Noise – %
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
OUTPUT POWER
RL = 3 Ω
RL = 8 Ω
Figure 11
0.1
0.01
20 100 1 k
1
10
10 k 20 k
THD+N –Total Harmonic Distortion + Noise – %
f – Frequency – Hz
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
FREQUENCY
VDD = 3.3 V
PO = 0.75 W
RL = 4 Ω
BTL
AV = –10 V/V
AV = –20 V/V
AV = –2 V/V
AV = –10 V/V (RL = 3 Ω, PO = 800 mW)
Figure 12
PO = 0.35 W
PO = 0.1 W
PO = 0.75 W
0.1
0.01
20 100 1 k
1
10
10 k 20 k
THD+N –Total Harmonic Distortion + Noise – %
f – Frequency – Hz
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
FREQUENCY
VDD = 3.3 V
RL = 4 Ω
AV = –2 V/V
BTL
PO = 800 mW
(RL = 3 Ω)
TPA0202
2-W STEREO AUDIO POWER AMPLIFIER
SLOS205A – FEBRUARY 1998 – REVISED MARCH 2000
10
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
Figure 13
0.1
0.01
0.1
1
10
12
f = 20 kHz
f = 1 kHz
f = 20 Hz
PO – Output Power – W
VDD = 3.3 V
RL = 3 Ω
AV = –2 V/V
BTL
THD+N –Total Harmonic Distortion + Noise – %
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
OUTPUT POWER
Figure 14
0.1
0.01
20 100 1 k
1
10
10 k 20 k
THD+N –Total Harmonic Distortion + Noise – %
f – Frequency – Hz
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
FREQUENCY
AV = –20 V/V
AV = –10 V/V
AV = –2 V/V
VDD = 3.3 V
PO = 0.4 W
RL = 8 Ω
BTL
Figure 15
PO = 0.4 W
PO = 0.25 W
PO = 0.1 W
VDD = 3.3 V
RL = 8 Ω
AV = –2 V/V
BTL
0.1
0.01
20 100 1 k
1
10
10 k 20 k
THD+N –Total Harmonic Distortion + Noise – %
f – Frequency – Hz
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
FREQUENCY
Figure 16
0.1
0.01
0.01 0.1
1
10
110
f = 20 kHz
f = 1 kHz
f = 20 Hz
PO – Output Power – W
VDD = 3.3 V
RL = 8 Ω
AV = –2 V/V
BTL
THD+N –Total Harmonic Distortion + Noise – %
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
OUTPUT POWER
TPA0202
2-W STEREO AUDIO POWER AMPLIFIER
SLOS205A – FEBRUARY 1998 – REVISED MARCH 2000
11
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
Figure 17
0.1
0.01
20 100 1 k
1
10
10 k 20 k
AV = –10 V/V
AV = –5 V/V
AV = –1 V/V
THD+N –Total Harmonic Distortion + Noise – %
f – Frequency – Hz
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
FREQUENCY
VDD = 5 V
PO = 0.5 W
RL = 4 Ω
SE
Figure 18
0.1
0.01
20 100 1 k
1
10
10 k 20 k
PO = 0.25 W
PO = 0.1 W
PO = 0.5 W
THD+N –Total Harmonic Distortion + Noise – %
f – Frequency – Hz
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
FREQUENCY
VDD = 5 V
RL = 4 Ω
AV = –2 V/V
SE
Figure 19
f = 20 kHz
f =100 Hz
f = 1 kHz
VDD = 5 V
RL = 4 Ω
AV = –2 V/V
SE
0.1
0.01
0.001 0.01
1
10
0.1 1
PO – Output Power – W
THD+N –Total Harmonic Distortion + Noise – %
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
OUTPUT POWER
Figure 20
0.1
0.01
20 100 1 k
1
10
10 k 20 k
AV = –10 V/V
AV = –5 V/V
AV = –1 V/V
THD+N –Total Harmonic Distortion + Noise – %
f – Frequency – Hz
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
FREQUENCY
VDD = 5 V
PO = 0.25 W
RL = 8 Ω
SE
TPA0202
2-W STEREO AUDIO POWER AMPLIFIER
SLOS205A – FEBRUARY 1998 – REVISED MARCH 2000
12
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
Figure 21
0.1
0.01
20 100 1 k
1
10
10 k 20 k
PO = 0.25 W
PO = 0.05 W
PO = 0.1 W
THD+N –Total Harmonic Distortion + Noise – %
f – Frequency – Hz
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
FREQUENCY
VDD = 5 V
RL = 8 Ω
SE
Figure 22
0.1
0.01
0.001 0.1
1
10
1
PO – Output Power – W
VDD = 5 V
RL = 8 Ω
AV = –2 V/V
SE
THD+N –Total Harmonic Distortion + Noise – %
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
OUTPUT POWER
0.01
f = 20 kHz
f = 1 kHz
f = 100 Hz
Figure 23
0.1
0.01
20 100 1 k
1
10
10 k 20 k
AV = –10 V/V
AV = –5 V/V
AV = –1 V/V
THD+N –Total Harmonic Distortion + Noise – %
f – Frequency – Hz
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
FREQUENCY
VDD = 5 V
PO = 0.075 W
RL = 32 Ω
SE
Figure 24
0.1
0.01
20 100 1 k
1
10
10 k 20 k
PO = 75 mW
PO = 25 mW
PO = 50 mW
THD+N –Total Harmonic Distortion + Noise – %
f – Frequency – Hz
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
FREQUENCY
VDD = 5 V
RL = 32 Ω
SE
TPA0202
2-W STEREO AUDIO POWER AMPLIFIER
SLOS205A – FEBRUARY 1998 – REVISED MARCH 2000
13
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
Figure 25
0.1
0.01
0.001 0.01
1
10
0.1 1
f = 20 kHz
f = 1 kHz
f = 20 Hz
PO – Output Power – W
VDD = 5 V
RL = 32 Ω
SE
THD+N –Total Harmonic Distortion + Noise – %
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
OUTPUT POWER
Figure 26
0.1
0.01
20 100 1 k
1
10
10 k 20 k
AV = –10 V/V
AV = –5 V/V
AV = –1 V/V
THD+N –Total Harmonic Distortion + Noise – %
f – Frequency – Hz
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
FREQUENCY
VDD = 3.3 V
PO = 0.2 W
RL = 4 Ω
SE
Figure 27
0.1
0.01
20 100 1 k
1
10
10 k 20 k
PO = 0.05 W
PO = 0.1 W
PO = 0.2 W
THD+N –Total Harmonic Distortion + Noise – %
f – Frequency – Hz
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
FREQUENCY
VDD = 3.3 V
RL = 4 Ω
SE
Figure 28
f = 100 Hz
f = 1 kHz
f = 20 kHz
VDD = 3.3 V
RL = 4 Ω
AV = –2 V/V
SE
0.1
0.01
0.001 0.01
1
10
10.1
PO – Output Power – W
THD+N –Total Harmonic Distortion + Noise – %
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
OUTPUT POWER
Loading...