參數(shù)資料
型號(hào): TS472EIJT
廠商: 意法半導(dǎo)體
英文描述: Very Low Noise Microphone Preamplifier with 2V Biased Output and Active Low Standby Mode
中文描述: 極低噪聲麥克風(fēng)前置放大器,2V的偏壓輸出和有源低待機(jī)模式
文件頁(yè)數(shù): 5/20頁(yè)
文件大小: 611K
代理商: TS472EIJT
TS472
Electrical Characteristics
5/20
Note:
Unweighted filter = 20Hz
F
20kHz
Table 6.
Differential RMS noise voltage
Gain
(dB)
Input Referred Noise Voltage
(
μ
V
RMS
)
Output Noise Voltage
(
μ
V
RMS
)
Unweighted Filter
A-weighted Filter
Unweighted Filter
A-weighted Filter
0
15
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
(
μ
F)
Unweighted Filter
(
μ
V
RMS
)
A-weighted Filter
(
μ
V
RMS
)
1
5
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
79
80
80
20
82
83
83
89
90
90
40
70
72
74
80
82
84
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