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LMV1089RLX PDF预览

LMV1089RLX

更新时间: 2024-11-21 05:42:27
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
32页 1644K
描述
Dual Input, Far Field Noise Suppression Microphone Amplifier with Automatic Calibration Capability

LMV1089RLX 技术参数

是否Rohs认证: 符合生命周期:Transferred
包装说明:VFBGA, BGA36,6X6,20Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.33.00.01
风险等级:5.46商用集成电路类型:AUDIO AMPLIFIER
JESD-30 代码:S-PBGA-B36JESD-609代码:e2
长度:3.459 mm湿度敏感等级:1
信道数量:2功能数量:1
端子数量:36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:VFBGA封装等效代码:BGA36,6X6,20
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:3.3/5 V
认证状态:Not Qualified座面最大高度:0.735 mm
子类别:Audio/Video Amplifiers最大压摆率:1.5 mA
最大供电电压 (Vsup):5.5 V最小供电电压 (Vsup):2.7 V
表面贴装:YES温度等级:INDUSTRIAL
端子面层:Tin/Silver (Sn/Ag)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:40宽度:3.459 mm
Base Number Matches:1

LMV1089RLX 数据手册

 浏览型号LMV1089RLX的Datasheet PDF文件第2页浏览型号LMV1089RLX的Datasheet PDF文件第3页浏览型号LMV1089RLX的Datasheet PDF文件第4页浏览型号LMV1089RLX的Datasheet PDF文件第5页浏览型号LMV1089RLX的Datasheet PDF文件第6页浏览型号LMV1089RLX的Datasheet PDF文件第7页 
May 19, 2010  
LMV1089  
Dual Input, Far Field Noise Suppression Microphone  
Amplifier with Automatic Calibration Capability  
General Description  
Key Specifications  
The LMV1089 is a fully analog dual differential input, differ-  
ential output, microphone array amplifier designed to reduce  
background acoustic noise, while delivering superb speech  
clarity in voice communication applications.  
■ꢀFar Field Noise Suppression  
(Electrical), (f = 1kHz)  
37dB  
2.7V to 5.5V  
1.1mA (typ)  
0.7µA (typ)  
65dB (typ)  
0.1% (typ)  
96dB (typ)  
■ꢀSupply Voltage  
■ꢀSupply Current  
■ꢀStandby Current  
■ꢀSignal-to-Noise Ratio (A-weighted)  
■ꢀTotal Harmonic Distortion + Noise  
■ꢀPSRR (217Hz)  
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 cali-  
brated system.  
Part of the Powerwise™ family of energy efficient solutions,  
the LMV1089 consumes only 1.1mA of supply current pro-  
viding superior performance over DSP solutions consuming  
greater than ten times the power.  
Features  
A quick calibration during the manufacturing test process of  
the product containing the LMV1089 compensates the entire  
microphone system. This calibration compensates for mis-  
match in microphone gain and frequency response, as well  
as acoustical path variances. The LMV1089 stores the cali-  
bration coefficients in the on-chip EEPROM. The calibration  
is initiated by an I2C command or by a logic pin control.  
Low power consumption  
Shutdown function  
No added processing delay  
Differential inputs and outputs  
Automatic calibration  
Adjustable 6 - 48dB gain  
The dual microphone inputs and the processed signal output  
are differential to provide excellent noise immunity. The mi-  
crophones are biased with an internal low-noise bias supply.  
Excellent RF immunity  
Space-saving 36–bump micro SMD package  
Applications  
Headset and Boom microphones  
Mobile handsets and two-way radios  
Bluetooth and other powered headsets  
Hand-held voice microphones  
Equalized stereo microphone preamplifier  
30047240  
FIGURE 1.  
© 2010 National Semiconductor Corporation  
300472  
www.national.com  

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具有噪声抑制功能的双输入麦克风前置放大器 | YFQ | 25 | -40 to 85