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TS472 数据表(PDF) 7 Page - STMicroelectronics

部件名 TS472
功能描述  Very low noise microphone preamplifier with 2.0V bias output and active low standby mode
PDF  24 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) 7 Page - STMicroelectronics

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TS472
Electrical characteristics
7/24
Note:
Unweighted filter = 20Hz
≤F ≤20kHz
Table 7.
Differential RMS noise voltage
Gain
(dB)
Input referred noise voltage
(
μVRMS)
Output noise voltage
(
μVRMS)
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 8.
Bias output RMS noise voltage
Cout
(
μF)
Unweighted filter
(
μVRMS)
A-weighted filter
(
μVRMS)
15
4.4
10
2.2
1.2
Table 9.
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
767980
80
20
82
83
83
89
90
90
40
70
72
74
80
82
84



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