參數(shù)資料
型號(hào)： TS472
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)： 2/20頁(yè)
文件大小： 611K
代理商： TS472
Typical Application Schematic
TS472
2/20
1
Typical Application Schematic
Figure 1
shows a typical application schematic for the TS472 with gain = 20dB. To change the
gain see
Chapter 4.5: Gain settings
on
page 14
.
Table 1.
External component descriptions
Figure 1.
Application schematic
Components
Functional Description
Cin+, Cin-
Input coupling capacitors which blocks the DC voltage at the amplifier input terminal
and determine
Lower cut-off frequency
.
Cout+, Cout-
Output coupling capacitors which blocks the DC voltage coming from the amplifier
output terminal (pins C2 and D2) and determine
Lower cut-off frequency
.
Rout+, Rout-
Output load resistors which allow to charged the output coupling capacitors Cout.
These output resistors can be represented by an input impedance of a following
stage.
Rpos, Rneg
Microphone biasing resistors
Cs
Supply Bypass capacitor which provides power supply filtering.
Cb
Bypass pin capacitor which provides half supply filtering.
C1, C2
Low pass filter capacitors which can determine
Higher cut-off frequency
.
C3
Bias output capacitor which keeps voltage stabilized and provides 2.0V bias filtering.
VCC
Electret Mic
Rpos
Rneg
Standby Control
Positive Output
Negative Output
1uF
Cb
1uF
Cs
1uF
C3
C1
C2
Cin+
Cin-
+
Cout+
Cout-
Rout+
Rout-
Bias
S
IN-
IN+
G
C
C
OUT+
OUT-
GAIN
BYPASS
BIAS
2.0V
G
Vcc
D
A
B
C2
D2
B2
D1
C
C
A2
B1
A1
U1
TS472
Optional
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TS472_06 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Very low noise microphone preamplifier with 2.0V bias output and active low standby mode
TS472EIJT 功能描述:音頻放大器 Low Noise Microphone Preamp 2V Output RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
TS472IQT 功能描述:音頻放大器 Microphone Preamp Lo Noise RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
TS475NJS 制造商:Xcelite 功能描述:5" Tapered Head Diagonal Cutter
TS48-0600-F-A-FS-OE-4000-Y 制造商:TAPESWITCH CORP 功能描述:4602??? TS46, 600mm / 23-5/8 inches
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