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LMV1089VYX/NOPB

更新时间： 2024-11-21 20:10:47
品牌 Logo 应用领域
德州仪器 - TI 放大器商用集成电路
页数 文件大小 规格书
37页 1921K
描述
Dual Input, Far Field Noise Suppression Mic Amp w/ Auto Calibration Capability 32-LQFP -40 to 85

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LMV1089VYX/NOPB 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Obsolete包装说明：QFP, QFP32,.35SQ,32
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.33.00.01风险等级：5.45
商用集成电路类型：AUDIO AMPLIFIERJESD-30 代码：S-PQFP-G32
JESD-609代码：e3湿度敏感等级：3
功能数量：2端子数量：32
最高工作温度：85 °C最低工作温度：-40 °C
封装主体材料：PLASTIC/EPOXY封装代码：QFP
封装等效代码：QFP32,.35SQ,32封装形状：SQUARE
封装形式：FLATPACK峰值回流温度（摄氏度）：260
电源：3.3/5 V认证状态：Not Qualified
子类别：Audio/Video Amplifiers最大压摆率：1.5 mA
表面贴装：YES温度等级：INDUSTRIAL
端子面层：Matte Tin (Sn)端子形式：GULL WING
端子节距：0.8 mm端子位置：QUAD
处于峰值回流温度下的最长时间：NOT SPECIFIEDBase Number Matches：1

LMV1089VYX/NOPB 数据手册

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LMV1089  
www.ti.com  
SNAS441H –SEPTEMBER 2008–REVISED MAY 2010  
LMV1089 Dual Input, Far Field Noise Suppression Microphone Amplifier with Automatic  
Calibration Capability  
Check for Samples: LMV1089  
1
FEATURES  
DESCRIPTION  
The LMV1089 is a fully analog dual differential input,  
differential output, microphone array amplifier  
designed to reduce background acoustic noise, while  
2
•
Low Power Consumption  
Shutdown Function  
•
•
•
•
•
•
•
No Added Processing Delay  
Differential Inputs and Outputs  
Automatic Calibration  
delivering  
superb  
speech  
clarity  
in  
voice  
communication applications.  
The LMV1089 preserves near-field voice signals  
within 4cm of the microphones while rejecting far-field  
acoustic noise greater than 50cm from the  
microphones. Up to 20dB of far-field rejection is  
possible in a properly configured and calibrated  
system.  
Adjustable 6 - 48dB Gain  
Excellent RF Immunity  
Space-Saving 36–Bump DSBGA Package  
APPLICATIONS  
Part of the Powerwise™ family of energy efficient  
solutions, the LMV1089 consumes only 1.1mA of  
supply current providing superior performance over  
DSP solutions consuming greater than ten times the  
power.  
•
•
•
•
•
Headset and Boom Microphones  
Mobile Handsets and Two-Way Radios  
Bluetooth and Other Powered Headsets  
Hand-Held Voice Microphones  
A quick calibration during the manufacturing test  
process of the product containing the LMV1089  
compensates the entire microphone system. This  
calibration compensates for mismatch in microphone  
gain and frequency response, as well as acoustical  
path variances. The LMV1089 stores the calibration  
coefficients in the on-chip EEPROM. The calibration  
is initiated by an I2C command or by a logic pin  
control.  
Equalized Stereo Microphone Preamplifier  
KEY SPECIFICATIONS  
•
Far Field Noise Suppression  
(Electrical), (f = 1kHz) 37 dB  
•
•
•
•
•
•
Supply Voltage 2.7 to 5.5 V  
Supply Current 1.1 mA (typ)  
Standby Current 0.7 µA (typ)  
The dual microphone inputs and the processed signal  
output are differential to provide excellent noise  
immunity. The microphones are biased with an  
internal low-noise bias supply.  
Signal-to-Noise Ratio (A-weighted) 65 dB (typ)  
Total Harmonic Distortion + Noise 0.1 % (typ)  
PSRR (217Hz) 96 dB (typ)  
Far-field noise, > 50 cm  
Up to 4 cm  
T
LMV1089  
ra  
Pure analog solution  
f
f
i
c
N
provides superior  
performance over DSP  
solutions  
o
i
se  
L
o
u
d
Mu  
si  
c
Analog  
Filter  
Crowd Noise  
Near-Field Voice  
s
t
n
me  
ce  
n
u
o
n
An  
Far field noise reduced  
by up to 20 dB in properly  
configured and calibrated  
system  
se  
i
EEPROM  
o
N
Low-cost  
omnidirectional  
microphones  
e
n
i
ch  
Ma  
Figure 1.  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
2
All trademarks are the property of their respective owners.  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2008–2010, Texas Instruments Incorporated  
1234567...37

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LMV1089VYX/NOPB 替代型号

型号 品牌 替代类型 描述 数据表
LMV1089VYX NSC

功能相似

 Dual Input, Far Field Noise Suppression Microphone Amplifier with Automatic Calibration Ca

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