参数资料
型号: TPA2012D2RTJRG4
厂商: TEXAS INSTRUMENTS INC
元件分类: 音频/视频放大
英文描述: 2.1 W, 2 CHANNEL, AUDIO AMPLIFIER, PQCC20
封装: 4 X 4 MM, GREEN, PLASTIC, QFN-20
文件页数: 22/22页
文件大小: 785K
代理商: TPA2012D2RTJRG4
75
70
65
60
55
50
100
1 k
10 k
VDD = 2.5 V
VDD = 3.6 V
VDD = 5 V
CMRR
Common-Mode
Rejection
Ratio
dB
f Frequency Hz
VIC = 1 VPP,
RL = 8 W,
AV = 6 dB
20 k
20
CMRR
Common-Mode
Rejection
Ratio
dB
100
80
60
40
20
0
20
0
1
2
3
4
5
VICR Common-Mode Input Voltage Range V
VDD = 5.5 V
VDD = 3.6 V
VDD = 2.5 V
t Time 2 ms/div
V
DD
200
mV/div
V
OUT
20
mV/div
C1 High, 3.6 V
C1 Amp, 512 mV
C1 Duty, 12%
160
140
120
100
80
60
40
20
0
500
1000
1500
2000
2500
160
140
120
100
80
60
40
20
0
CI = 1 mF,
Inputs AC Grounded,
AV = 6 dB
VDD = 3.6 V
Input
Output
Supply
Signal
Ripple
V
Power-Supply
Rejection
Output
V
f Frequency Hz
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0
0.2
0.4
0.6
0.8
1
1.2
1.4
Class-AB,
VDD = 3.6 V
RL = 4
RL = 8
RL = 4
RL = 8
Powers are per Channel
QFN
Power
Dissipation
W
P
D
PO Output Power W
Class-AB,
VDD = 3.6 V
90
80
70
60
50
40
30
20
10
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
DC Common Mode Voltage V
VDD = 2.7 V
VDD = 5 V
VDD = 3.6 V
RL = 8 W,
VIN = 200 mVPP
f = 217 Hz
k
SVR
Supply
V
oltage
Rejection
Ratio
dB
0
10
20
30
40
50
60
70
80
90
100
0
0.5
1
1.5
2
2.5
Efficiency
%
PO Output Power W
RL = 4
VDD = 5 V
VDD = 3.6
V
VDD = 2.5 V
QFN
Class-AB
Powers are per Channel
0
10
20
30
40
50
60
70
80
90
100
0
0.2
0.4
0.6
0.8
1
1.2
1.4
VDD = 5 V
VDD = 3.6 V
VDD = 2.5 V
Class-AB
RL = 8
Powers are per Channel
QFN
Efficiency
%
PO Output Power W
0
0.2
0.4
0.6
0.8
1
1.2
1.4
0
0.5
1
1.5
2
2.5
Class-AB, VDD = 5 V
RL = 4
RL = 8
Powers are per Channel
QFN
Power
Dissipation
W
P
D
PO Output Power W
Class-AB, VDD = 5 V
RL = 8
www.ti.com .................................................................................................................................................. SLOS438D – DECEMBER 2004 – REVISED JUNE 2008
TYPICAL CHARACTERISTICS (continued)
COMMOM-MODE
REJECTION RATIO
COMMON-MODE
GSM POWER
vs
REJECTION RATIO
SUPPLY REJECTION
COMMON-MODE
vs
INPUT VOLTAGE
FREQUENCY
TIME
Figure 19.
Figure 20.
Figure 21.
SUPLY VOLTAGE
POWER SUPPLY REJECTION
REJECTION RATIO
POWER DISSIPATION
vs
FREQUENCY
DC COMMON-MODE VOLTAGE
OUTPUT POWER
Figure 22.
Figure 23.
Figure 24.
POWER DISSIPATION
EFFICIENCY
vs
OUTPUT POWER
Figure 25.
Figure 26.
Figure 27.
Copyright 2004–2008, Texas Instruments Incorporated
9
Product Folder Link(s): TPA2012D2
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