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TS472 数据表(PDF) 5 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) 5 Page - STMicroelectronics

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TS472
Electrical Characteristics
5/20
Note:
Unweighted filter = 20Hz
≤ F ≤ 20kHz
Table 6.
Differential RMS noise voltage
Gain
(dB)
Input Referred Noise Voltage
(
µV
RMS)
Output Noise Voltage
(
µV
RMS)
Unweighted Filter
A-weighted Filter
Unweighted Filter
A-weighted Filter
015
10
15
10
20
3.4
2.3
34
23
40
1.4
0.9
141
91
Table 7.
Bias output RMS noise voltage
Cout
(
µF)
Unweighted Filter
(
µV
RMS)
A-weighted Filter
(
µV
RMS)
15
4.4
10
2.2
1.2
Table 8.
SNR (signal to noise ratio), THD+N < 0.5%
Gain
(dB)
Unweighted Filter
(dB)
A-weighted Filter
(dB)
Vcc=2.2V
Vcc=3V
Vcc=5.5V
Vcc=2.2V
Vcc=3V
Vcc=5.5V
0
75
76
76
798080
20
82
83
83
89
90
90
40
70
72
74
80
82
84



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