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參數資料
| 型號： | TPA2012D2RTJTG4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 2.1 W, 2 CHANNEL, AUDIO AMPLIFIER, PQCC20 |
| 封裝： | 4 X 4 MM, GREEN, PLASTIC, QFN-20 |
| 文件頁數： | 21/22頁 |
| 文件大小： | 785K |
| 代理商： | TPA2012D2RTJTG4 |
0.1
1
20
100
1 k
10 k
20 k
f Frequency Hz
VDD = 5 V,
RL = 8 W,
CI = 1 mF,
AV = 6 dB
0.01
380 mW
775 mW
1.16 W
THD+N
T
otal
Harmonic
Distortion
+
Noise
%
NoOutputFilter
0
1
2
3
4
5
6
0
1
2
3
4
5
VDD = 5 V
VDD = 3.6 V
VDD = 2.5 V
I DD
Supply
Current
mA
VSD Shutdown Voltage V
0
200
400
600
800
1000
1200
0
0.2 0.4 0.6 0.8
1
1.2 1.4 1.6 1.8
2
2.2
VDD = 2.5 V, RL = 4 W, 33 mH
IDD is for Both Channels
VDD = 5 V, RL = 4 W, 33 mH
VDD = 3.6 V, RL = 4 W, 33 mH
I
DD
Supply
Current
mA
PO Output Power/Channel W
I
DD
Supply
Current
mA
0
100
200
300
400
500
600
700
800
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
VDD = 2.5 V, RL = 8 W, 33 mH
VDD = 3.6 V, RL = 8 W, 33 mH
VDD = 5 V, RL = 8 W, 33 mH
IDD is for Both Channels
PO Output Power/Channel W
140
120
100
80
60
40
20
0
100
1 k
10 k
f Frequency Hz
2.5 V R to L
5 V R to L
3.6 V R to L
5 V L to R
3.6 V L to R
Crosstalk
dB
RI = 8 W
20 k
20
2.5 V L to R
100
90
80
70
60
50
40
30
100
1 k
10 k
Inputs AC, Grounded,
CI = 1 mF,
RI = 4 W,
AV = 6 dB
VDD = 2.7 V
VDD = 5 V
VDD = 3.6 V
PSRR
Power
Supply
Rejection
Ratio
dB
f Frequency Hz
20 k
20
120
100
80
60
40
20
0
100
1 k
10 k
f Frequency Hz
2.5 V R to L
2.5 V L to R
3.6 V L to R
3.6 V R to L
5 V R to L
5 V L to R
Crosstalk
dB
20 k
20
RI = 4 W
100
90
80
70
60
50
40
30
100
1 k
10 k
Inputs AC Grounded,
CI = 1 mF,
RI = 8 W,
AV = 6 dB
VDD = 2.7 V
VDD = 5 V
VDD = 3.6 V
PSRR
Power
Supply
Rejection
Ratio
dB
f Frequency Hz
20 k
20
SLOS438D – DECEMBER 2004 – REVISED JUNE 2008 .................................................................................................................................................. www.ti.com
TYPICAL CHARACTERISTICS (continued)
TOTAL HARMONIC DISTORTION
SUPPLY CURRENT
vs
FREQUENCY
SHUTDOWN VOLTAGE
SUPPLY VOLTAGE
Figure 10.
Figure 11.
Figure 12.
SUPPLY CURRENT
CROSSTALK
vs
OUTPUT POWER
FREQUENCY
Figure 13.
Figure 14.
Figure 15.
POWER SUPPLY
CROSSTALK
REJECTION RATIO
vs
FREQUENCY
Figure 16.
Figure 17.
Figure 18.
8
Copyright 2004–2008, Texas Instruments Incorporated
Product Folder Link(s): TPA2012D2
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