Texas Instruments TPA0222PWPR, TPA0222PWP, TPA0222EVM Datasheet
TPA0222
STEREO 2-W AUDIO POWER AMPLIFIER
WITH FOUR SELECTABLE GAIN SETTINGS AND MUX CONTROL
SLOS285 – NOVEMBER 1999
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
D
Compatible With PC 99 Desktop Line-Out
Into 10-kΩ Load
D
Compatible With PC 99 Portable Into 8-Ω
Load
D
Internal Gain Control, Which Eliminates
External Gain-Setting Resistors
D
2-W/Ch Output Power Into 3-Ω Load
D
Input MUX Select Terminal
D
PC-Beep Input
D
Depop Circuitry
D
Stereo Input MUX
D
Fully Differential Input
D
Low Supply Current and Shutdown Current
D
Surface-Mount Power Packaging
24-Pin TSSOP PowerP AD
description
The TPA0222 is a stereo audio power amplifier in a 24-pin TSSOP thermally enhanced package capable of
delivering 2 W of continuous RMS power per channel into 3-Ω loads. This device minimizes the number of
external components needed, simplifying the design, and freeing up board space for other features. When
driving 1 W into 8-Ω speakers, the TP A0222 has less than 0.5% THD+N across its specified frequency range.
Included within this device is integrated depop circuitry that virtually eliminates transients that cause noise in
the speakers.
Amplifier gain is internally configured and controlled by two terminals (GAIN0 and GAIN1). BTL gain settings
of 2, 6, 12, and 24 V/V are provided, while SE gain is always configured as 1 V/V for headphone drive. An internal
input MUX allows two sets of stereo inputs to the amplifier. The HP/LINE
terminal allows the user to select which
MUX input is active regardless of whether the amplifier is in SE or BTL mode. In notebook applications, where
internal speakers are driven as BTL and the line outputs (often headphone drive) are required to be SE, the
TP A0222 automatically switches into SE mode when the SE/BTL input is activated, and reduces the gain to 1
V/V.
The TPA0222 consumes only 18 mA of supply current during normal operation. A miserly shutdown mode
reduces the supply current to less than 150 µA.
The PowerPAD 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 truly realized in multilayer PCB
applications. This allows the TP A0222 to operate at full power into 8-Ω loads at an ambient temperature of 85°C.
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.
Copyright 1999, 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.
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
GAIN0
GAIN1
LOUT+
LLINEIN
LHPIN
PV
DD
RIN
LOUT–
LIN
BYPASS
GND
GND
RLINEIN
SHUTDOWN
ROUT+
RHPIN
V
DD
PV
DD
HP/LINE
ROUT–
SE/BTL
PC-BEEP
GND
PWP PACKAGE
(TOP VIEW)
PowerPAD is a trademark of Texas Instruments Incorporated.
TPA0222
STEREO 2-W AUDIO POWER AMPLIFIER
WITH FOUR SELECTABLE GAIN SETTINGS AND MUX CONTROL
SLOS285 – NOVEMBER 1999
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
functional block diagram
ROUT+
–
+
–
+
R
MUX
PC-
Beep
Gain/
MUX
Control
Depop
Circuitry
Power
Management
–
+
–
+
L
MUX
RHPIN
RLINEIN
RIN
PC-BEEP
GAIN0
GAIN1
SE/BTL
LHPIN
LLINEIN
LIN
ROUT–
PV
DD
V
DD
BYPASS
SHUTDOWN
GND
LOUT+
LOUT–
HP/LINE
TPA0222
STEREO 2-W AUDIO POWER AMPLIFIER
WITH FOUR SELECTABLE GAIN SETTINGS AND MUX CONTROL
SLOS285 – NOVEMBER 1999
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
AVAILABLE OPTIONS
PACKAGED DEVICE
T
A
TSSOP
†
(PWP)
–40°C to 85°C TPA0222PWP
†
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.,
TPA0222PWPR).
Terminal Functions
TERMINAL
NAME NO.
I/O
DESCRIPTION
BYPASS 11 Tap to voltage divider for internal mid-supply bias generator
GAIN0 2 I Bit 0 of gain control
GAIN1 3 I Bit 1 of gain control
GND
1, 12,
13, 24
Ground connection for circuitry. Connected to the thermal pad
LHPIN 6 I Left channel headphone input, selected when SE/BTL is held high
LIN 10 I Common left input for fully differential input. AC ground for single-ended inputs
LLINEIN 5 I Left channel line input, selected when SE/BTL is held low
LOUT+ 4 O Left channel positive output in BTL mode and positive output in SE mode
LOUT– 9 O Left channel negative output in BTL mode and high-impedance in SE mode
PC-BEEP 14 I
The input for PC Beep mode. PC-BEEP is enabled when a > 1-V (peak-to-peak) square wave is input
to PC-BEEP or PCB ENABLE is high.
HP/LINE 17 I
HP/LINE is the input MUX control input. When the HP/LINE terminal is held high, the headphone inputs
(LHPIN or RHPIN [6, 20]) are active. When the HP/LINE
terminal is held low, the line BTL inputs (LLINEIN
or RLINEIN [5, 23]) are active.
PV
DD
7, 18 I Power supply for output stage
RHPIN 20 I Right channel headphone input, selected when SE/BTL is held high
RIN 8 I Common right input for fully differential input. AC ground for single-ended inputs
RLINEIN 23 I Right channel line input, selected when SE/BTL is held low
ROUT+ 21 O Right channel positive output in BTL mode and positive output in SE mode
ROUT– 16 O Right channel negative output in BTL mode and high-impedance in SE mode
SHUTDOWN 22 I Places entire IC in shutdown mode when held low, except PC-BEEP remains active
SE/BTL 15 I Hold SE/BTL low for BTL mode and hold high for SE mode.
V
DD
19 I Analog VDD input supply. This terminal needs to be isolated from PVDD to achieve highest performance.
TPA0222
STEREO 2-W AUDIO POWER AMPLIFIER
WITH FOUR SELECTABLE GAIN SETTINGS AND MUX CONTROL
SLOS285 – NOVEMBER 1999
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 MAX UNIT
Supply voltage, V
DD
4.5
5.5
V
p
SE/BTL, HP/LINE 4
High-level input voltage, V
IH
SHUTDOWN 2
V
p
SE/BTL, HP/LINE 3
Low-level input voltage, V
IL
SHUTDOWN 0.8
V
Operating free-air temperature, T
A
–40
85
°C
electrical characteristics at specified free-air temperature, VDD = 5 V , TA = 25°C (unless otherwise
noted)
PARAMETER TEST CONDITIONS
MIN TYP MAX UNIT
|VOS|
Output offset voltage (measured differentially)
VI = 0, AV = –2 V/V
25
mV
PSRR
Power supply rejection ratio
VDD = 4.9 V to 5.1 V
77
dB
|IIH| High-level input current
VDD = 5.5 V,
VI = V
DD
ÁÁÁÁÁ
Á
900
Á
Á
nA
|IIL| Low-level input current
VDD = 5.5 V,
VI = 0 V
900
nA
pp
BTL mode
18
IDDSupply current
SE mode
9
mA
I
DD(SD)
Supply current, shutdown mode
150
300
µA
TPA0222
STEREO 2-W AUDIO POWER AMPLIFIER
WITH FOUR SELECTABLE GAIN SETTINGS AND MUX CONTROL
SLOS285 – NOVEMBER 1999
5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
operating characteristics, VDD = 5 V, T
A
= 25°C, R
L
= 8 Ω, Gain = –2 V/V, BTL mode
PARAMETER TEST CONDITIONS
MIN TYP MAX UNIT
ÁÁ
Á
P
O
ББББББББББББ
БББББББББББ
Á
Output power
ÁÁÁÁ
Á
THD = 1%,
RL = 4 Ω
ÁÁÁÁ
Á
f = 1 kHz,
ÁÁÁ
Á
1.9
ÁÁÁ
Á
W
THD + N
ББББББББББББ
Total harmonic distortion plus noise
PO = 1 W,
f = 20 Hz to 15 kHz
0.5%
B
OM
ББББББББББББ
Maximum output power bandwidth
THD = 5%
>15
kHz
ББББББББББББ
Supply ripple rejection ratio
f = 1 kHz,
CB = 0.47 µF
BTL mode
68
dB
SNR Signal-to-noise ratio 105 dB
ББББББББББББ
p
C
= 0.47 µF,
BTL mode
16
V
n
ББББББББББББ
Noise output voltage
B
µ ,
f = 20 Hz to 20 kHz
SE mode
30
µ
V
RMS
Z
I
Input impedance See Table 1
TYPICAL CHARACTERISTICS
Table of Graphs
FIGURE
vs Output power
1, 4–7, 10–13,
16–19, 21
THD+N Total harmonic distortion plus noise
vs Frequency
2, 3, 8, 9, 14,
15, 20, 22
vs Output voltage 23
V
n
Output noise voltage vs Bandwidth 24
Supply ripple rejection ratio vs Frequency 25, 26
Crosstalk vs Frequency 27–29
Shutdown attenuation vs Frequency 30
SNR Signal-to-noise ratio vs Bandwidth 31
Closed loop respone 32–35
P
O
Output power vs Load resistance 36, 37
p
vs Output power 38, 39
PDPower dissipation
vs Ambient temperature 40
TPA0222
STEREO 2-W AUDIO POWER AMPLIFIER
WITH FOUR SELECTABLE GAIN SETTINGS AND MUX CONTROL
SLOS285 – NOVEMBER 1999
6
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
Figure 1
0.1%
0.01%
0.5 0.75 1 1.25 1.5 1.75 2
1%
10%
2.25 2.5 2.75 3
PO – Output Power – W
AV = 2 V/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
RL = 4 Ω
Figure 2
0.01%
10%
20 100 1k 10k 20k
THD+N –Total Harmonic Distortion + Noise
f – Frequency – Hz
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
FREQUENCY
1%
0.1%
PO = 1.75 W
RL = 3 Ω
BTL
AV = –6 V/V
AV = –24 V/V
AV = –2 V/V
AV = –12 V/V
Figure 3
0.01%
10%
20 100 1k 10k 20k
THD+N –Total Harmonic Distortion + Noise
f – Frequency – Hz
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
FREQUENCY
1%
0.1%
RL = 3 Ω
AV = –2 V/V
BTL
PO = 1.75 W
PO = 0.5 W
PO = 1.0 W
Figure 4
0.1%
0.01%
0.01 0.1
1%
10%
110
f = 20 Hz
f = 1 kHz
PO – Output Power – W
RL = 3 Ω
AV = –2 V/V
BTL
THD+N –Total Harmonic Distortion + Noise
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
OUTPUT POWER
f = 15 kHz
TPA0222
STEREO 2-W AUDIO POWER AMPLIFIER
WITH FOUR SELECTABLE GAIN SETTINGS AND MUX CONTROL
SLOS285 – NOVEMBER 1999
7
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
Figure 5
0.1%
0.01%
0.01 0.1
1%
10%
110
f = 20 Hz
f = 1 kHz
PO – Output Power – W
RL = 3 Ω
AV = –6 V/V
BTL
THD+N –Total Harmonic Distortion + Noise
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
OUTPUT POWER
f = 15 kHz
Figure 6
0.1%
0.01%
0.01 0.1
1%
10%
110
f = 20 Hz
f = 1 kHz
PO – Output Power – W
RL = 3 Ω
AV = –12 V/V
BTL
THD+N –Total Harmonic Distortion + Noise
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
OUTPUT POWER
f = 15 kHz
Figure 7
0.1%
0.01%
0.01 0.1
1%
10%
110
f = 20 Hz
f = 1 kHz
PO – Output Power – W
RL = 3 Ω
AV = –24 V/V
BTL
THD+N –Total Harmonic Distortion + Noise
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
OUTPUT POWER
f = 15 kHz
Figure 8
0.01%
10%
20 100 1k 10k 20k
THD+N –Total Harmonic Distortion + Noise
f – Frequency – Hz
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
FREQUENCY
1%
0.1%
PO = 1.5 W
RL = 4 Ω
BTL
AV = –6 V/V
AV = –24 V/V
AV = –2 V/V
AV = –12 V/V
TPA0222
STEREO 2-W AUDIO POWER AMPLIFIER
WITH FOUR SELECTABLE GAIN SETTINGS AND MUX CONTROL
SLOS285 – NOVEMBER 1999
8
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
Figure 9
0.01%
10%
20 100 1k 10k 20k
THD+N –Total Harmonic Distortion + Noise
f – Frequency – Hz
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
FREQUENCY
1%
0.1%
RL = 4 Ω
AV = –2 V/V
BTL
PO = 0.25 W
PO = 1.0 W
PO = 1.5 W
Figure 10
0.1%
0.01%
0.01 0.1
1%
10%
110
f = 20 Hz
f = 1 kHz
PO – Output Power – W
RL = 4 Ω
AV = –2 V/V
BTL
THD+N –Total Harmonic Distortion + Noise
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
OUTPUT POWER
f = 15 kHz
Figure 11
0.1%
0.01%
0.01 0.1
1%
10%
110
f = 20 Hz
f = 1 kHz
PO – Output Power – W
RL = 4 Ω
AV = –6 V/V
BTL
THD+N –Total Harmonic Distortion + Noise
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
OUTPUT POWER
f = 15 kHz
Figure 12
0.1%
0.01%
0.01 0.1
1%
10%
110
f = 20 Hz
f = 1 kHz
PO – Output Power – W
RL = 4 Ω
AV = –12 V/V
BTL
THD+N –Total Harmonic Distortion + Noise
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
OUTPUT POWER
f = 15 kHz
TPA0222
STEREO 2-W AUDIO POWER AMPLIFIER
WITH FOUR SELECTABLE GAIN SETTINGS AND MUX CONTROL
SLOS285 – NOVEMBER 1999
9
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
Figure 13
0.1%
0.01%
0.01 0.1
1%
10%
110
f = 20 Hz
f = 1 kHz
PO – Output Power – W
RL = 4 Ω
AV = –24 V/V
BTL
THD+N –Total Harmonic Distortion + Noise
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
OUTPUT POWER
f = 15 kHz
Figure 14
0.01%
10%
20 100 1k 10k 20k
THD+N –Total Harmonic Distortion + Noise
f – Frequency – Hz
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
FREQUENCY
1%
0.1%
RL = 8 Ω
AV = –2 V/V
BTL
PO = 0.25 W
PO = 1.0 W
PO = 0.5 W
0.001%
Figure 15
0.001%
1%
20 100 1k 10k 20
k
THD+N –Total Harmonic Distortion + Noise
f – Frequency – Hz
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
FREQUENCY
0.1%
0.01%
PO = 1 W
RL = 8 Ω
BTL
AV = –6 V/V
AV = –24 V/V
AV = –2 V/V
AV = –12 V/V
10%
Figure 16
0.1%
0.01%
0.01 0.1
1%
10%
110
f = 20 Hz
f = 1 kHz
PO – Output Power – W
RL = 8 Ω
AV = –2 V/V
BTL
THD+N –Total Harmonic Distortion + Noise
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
OUTPUT POWER
f = 15 kHz
0.001%
TPA0222
STEREO 2-W AUDIO POWER AMPLIFIER
WITH FOUR SELECTABLE GAIN SETTINGS AND MUX CONTROL
SLOS285 – NOVEMBER 1999
10
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
Figure 17
0.1%
0.01%
0.01 0.1
1%
10%
110
f = 20 Hz
f = 1 kHz
PO – Output Power – W
RL = 8 Ω
AV = –6 V/V
BTL
THD+N –Total Harmonic Distortion + Noise
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
OUTPUT POWER
f = 15 kHz
Figure 18
0.1%
0.01%
0.01 0.1
1%
10%
110
f = 20 Hz
f = 1 kHz
PO – Output Power – W
RL = 8 Ω
AV = –12 V/V
BTL
THD+N –Total Harmonic Distortion + Noise
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
OUTPUT POWER
f = 15 kHz
Figure 19
0.1%
0.01%
0.01 0.1
1%
10%
110
f = 20 Hz
f = 1 kHz
PO – Output Power – W
RL = 8 Ω
AV = –24 V/V
BTL
THD+N –Total Harmonic Distortion + Noise
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
OUTPUT POWER
f = 15 kHz
Figure 20
0.01%
10%
20 100 1k 10k 20k
THD+N –Total Harmonic Distortion + Noise
f – Frequency – Hz
TOTAL HARMONIC DISTORTION PLUS NOISE
vs
FREQUENCY
RL = 32 Ω
AV = –1 V/V
SE
PO = 50 mW
PO = 75 mW
1%
0.1%
0.001%
PO = 25 mW
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