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参数资料
| 型号： | TPA721DRG4 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 0.7 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8 |
| 封装： | GREEN, PLASTIC, MS-012AA, SOIC-8 |
| 文件页数： | 23/26页 |
| 文件大小： | 663K |
| 代理商： | TPA721DRG4 |
www.ti.com
VDD Supply Voltage V
20
10
0
3
4
3.5
4.5
60
5
30
SHUTDOWN = VDD
RF = 10 k
40
50
5.5
2.5
I DD
Supply
Current
A
70
80
90
VDD Supply Voltage V
600
400
200
0
2.5
3.5
3
4
5.5
1000
P
4.5
5
O
Output
Power
mW
800
THD+N 1%
f = 1 kHz
BTL
RL = 32
RL = 8
RL Load Resistance
300
200
100
0
16
32
24
40
64
800
8
P
48
56
O
Output
Power
mW
400
THD+N = 1%
f = 1 kHz
BTL
VDD = 5 V
500
600
VDD = 3.3 V
700
f Frequency Hz
THD+N
T
otal
Harmonic
Distortion
+
Noise
%
AV = 2 V/V
VDD = 3.3 V
PO = 250 mW
RL = 8
BTL
20
1k
10k
1
0.01
10
0.1
20k
100
AV = 20 V/V
AV = 10 V/V
TPA721
SLOS231E – NOVEMBER 1998 – REVISED JUNE 2004
TYPICAL CHARACTERISTICS (continued)
SUPPLY CURRENT
OUTPUT POWER
vs
SUPPLY VOLTAGE
Figure 4.
Figure 5.
OUTPUT POWER
TOTAL HARMONIC DISTORTION + NOISE
vs
LOAD RESISTANCE
FREQUENCY
Figure 6.
Figure 7.
6
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