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参数资料
| 型号： | TS472IQT |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 1 CHANNEL, AUDIO PREAMPLIFIER, QCC24 |
| 封装： | 4 X 4 MM, LEAD FREE, QFN-24 |
| 文件页数： | 2/24页 |
| 文件大小： | 622K |
| 代理商： | TS472IQT |
Electrical characteristics
TS472
10/24
Figure 8.
Bias output voltage vs. bias output
current
Figure 9.
Bias output voltage vs. power
supply voltage
01
23
4
1.4
1.6
1.8
2.0
2.2
Tamb=85°C
Tamb=25°C
B
ias
Out
p
u
tV
o
lt
age
(
V
)
Bias Output Current (mA)
Tamb=-40°C
Vcc=2.5-6V
345
1.4
1.6
1.8
2.0
2.2
Ibias=4mA
Ibias=2mA
Tamb=25°C
Ibias=0mA
B
ias
O
u
tput
Voltage
(V
)
Power Supply Voltage (V)
2.2
5.5
Figure 10.
Bias PSRR vs. frequency
Figure 11.
Bias PSRR vs. frequency
100
1000
10000
-100
-80
-60
-40
-20
0
Vripple=200mVpp
Vcc=3V
Cb=1
μF
Tamb =25
°C
PSR
R
(
d
B)
Frequency (Hz)
50
20k
Bias floating or 1k
Ω to GND
100
1000
10000
-100
-80
-60
-40
-20
0
Bias = 1k
Ω to GND
Vripple=200mVpp
Vcc=5V
Cb=1
μF
Tamb=25
°C
PSR
R
(
d
B)
Frequency (Hz)
50
20k
Bias floating
Figure 12.
Differential output PSRR vs.
frequency
Figure 13.
Differential output PSRR vs.
frequency
100
1000
10000
-80
-70
-60
-50
-40
-30
-20
-10
0
GS=bias
GS grounded
Vripple=200mVpp
Inputs grounded
Vcc=3V
Cb=1
μF
Cin=100nF
Tamb=25
°C
GS floating
PSRR
(
d
B)
Frequency (Hz)
50
20k
100
1000
10000
-80
-70
-60
-50
-40
-30
-20
-10
0
GS=bias
GS grounded
Vripple=200mVpp
Inputs grounded
Vcc=5V
Cb=1
μF
Cin=100nF
Tamb=25
°C
GS floating
PSRR
(
d
B)
Frequency (Hz)
50
20k
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