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TS472 数据表(PDF) 9 Page - STMicroelectronics

部件名 TS472
功能描述  Very Low Noise Microphone Preamplifier with 2V Biased Output and Active Low Standby Mode
PDF  20 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

TS472 数据表(HTML) 9 Page - STMicroelectronics

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TS472
Electrical Characteristics
9/20
Figure 14. Single-ended output PSRR vs.
frequency
Figure 15. Equivalent input noise voltage
density
Figure 16.
∆ gain vs. power supply voltage
Figure 17.
∆gain vs. ambient temperature
Figure 18. Maximum input voltage vs. gain,
THD+N<1%
Figure 19. Maximum input voltage vs. power
supply voltage, THD+N<1%
100
1000
10000
-80
-70
-60
-50
-40
-30
-20
-10
0
Vcc=5V
Vcc=2.2V
Vcc=3V
Vripple=200mVpp
Inputs grounded
Cb=1
µF
Cin=100nF
Tamb=25
°C
Frequency (Hz)
50
20k
10
100
1k
10k
100k
1
10
100
1000
Cin=100nF
R
EQ
=100
Ω
T
AMB
=25
°C
Frequency (Hz)
34
5
-0.4
-0.2
0.0
0.2
0.4
0.6
0.8
1.0
Maximum Gain
Gain=20dB
F=1kHz
Vin=5mV
Tamb=25°C
Minimum Gain
Power Supply Voltage (V)
2.2
5.5
-40
-20
0
20
406080
-1.00
-0.75
-0.50
-0.25
0.00
0.25
0.50
Maximum Gain
F=1kHz
V
IN
=5mV
Gain=20dB
Minimum Gain
Ambient Temperature (°C)
0
102030
40
0
50
100
150
V
CC
=2.2V
T
AMB
=25°C
F=1kHz
THD+N<1%
Gain (dB)
V
CC
=5.5V
V
CC
=3V
345
0
20
40
60
80
100
120
140
Gain=20dB
Gain=0dB
T
AMB
=25°C, F=1kHz, THD+N<1%
Power Supply Voltage (V)
Gain=30dB
Gain=40dB
2.2
5.5



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