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LMV1031URX-20 PDF预览

LMV1031URX-20

更新时间： 2024-11-17 23:15:55
品牌 Logo 应用领域
美国国家半导体 - NSC 放大器
页数 文件大小 规格书
10页 689K
描述
Amplifier for Internal 3-Wire Analog Microphones and External Preamplifier

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中文翻译

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LMV1031URX-20 技术参数

是否Rohs认证： 符合生命周期：Transferred
包装说明：VFBGA, BGA4,2X2,20Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.33.00.01
风险等级：5.21标称带宽：22 kHz
商用集成电路类型：AUDIO AMPLIFIER谐波失真：0.18%
JESD-30 代码：S-XBGA-B4JESD-609代码：e1
长度：1.179 mm湿度敏感等级：1
信道数量：1功能数量：1
端子数量：4最高工作温度：85 °C
最低工作温度：-40 °C封装主体材料：UNSPECIFIED
封装代码：VFBGA封装等效代码：BGA4,2X2,20
封装形状：SQUARE封装形式：GRID ARRAY, VERY THIN PROFILE, FINE PITCH
峰值回流温度（摄氏度）：260电源：2/5 V
认证状态：Not Qualified座面最大高度：0.35 mm
子类别：Audio/Video Amplifiers最大压摆率：0.1 mA
最大供电电压 (Vsup)：5 V最小供电电压 (Vsup)：2 V
表面贴装：YES温度等级：INDUSTRIAL
端子面层：Tin/Silver/Copper (Sn/Ag/Cu)端子形式：BALL
端子节距：0.5 mm端子位置：BOTTOM
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：1.179 mm
Base Number Matches：1

LMV1031URX-20 数据手册

 浏览型号LMV1031URX-20的Datasheet PDF文件第2页浏览型号LMV1031URX-20的Datasheet PDF文件第3页浏览型号LMV1031URX-20的Datasheet PDF文件第4页浏览型号LMV1031URX-20的Datasheet PDF文件第5页浏览型号LMV1031URX-20的Datasheet PDF文件第6页浏览型号LMV1031URX-20的Datasheet PDF文件第7页 
October 2005  
LMV1031-20  
Amplifier for Internal 3-Wire Analog Microphones and  
External Preamplifier  
General Description  
Features  
The LMV1031 audio amplifier is an ideal replacement for the  
JFET preamplifier that is currently used in the electret micro-  
phones. The LMV1031 is optimized for applications that  
require extended battery life, such as Bluetooth communica-  
tion links. The supply current for the LMV1031 is only 72 µA.  
This is a dramatic reduction from that required for a JFET  
equipped microphone. The LMV1031, with its separate out-  
put and supply pins, offers a higher PSRR and eliminates the  
need for additional external components.  
(Typical LMV1031-20, 2V Supply; Unless Otherwise Noted)  
n Signal to noise ratio  
n Output voltage noise (A-weighted)  
n Low supply current  
n Supply voltage  
n Input impedance  
n Max input signal  
62 dB  
−86 dBV  
72 µA  
2V to 5V  
>
100 MΩ  
108 mVPP  
1.09V  
n Output voltage  
n Temperature range  
n Large Dome 4-Bump micro SMD package with improved  
adhesion technology.  
−40˚C to 85˚C  
The LMV1031 is guaranteed to operate from 2V to 5V supply  
voltage over the full temperature range, has a fixed voltage  
gain of 20 dB and enhanced SNR performance. The  
LMV1031 is optimized for an output biasing of 1.09V.  
Applications  
The LMV1031 has less than 200Ω of output impedance over  
the full audio bandwidth. The gain response of the LMV1031  
is flat within the audio band and is stable over the tempera-  
ture range.  
n Mobile communications - Bluetooth  
n Accessory microphone products  
n Cellular phones  
The LMV1031 is available in a large dome 4-bump ultra thin  
micro SMD package that can easily fit on the PCB inside the  
miniature microphone metal can (package). This package is  
designed for microphone PCBs requiring 1 kg adhesion  
criteria.  
n PDAs  
Block Diagram  
Electret Microphone  
20150804  
20150801  
© 2005 National Semiconductor Corporation  
DS201508  
www.national.com  
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