LMV1091
- No Loss of Voice Intelligibility
- Low Power Consumption
- Shutdown Function
- No added Processing Delay
- Differential Outputs
- Adjustable 12 - 54dB Gain
- Excellent RF Immunity
- Available in a 25–Bump DSBGA Package
Key Specifications
- Far Field Noise Suppression Electrical (FFNSE at f = 1kHz): 34dB (typ)
- SNRIE: 26dB (typ)
- Supply Voltage: 2.7V to 5.5V
- Supply Current: 600μA (typ)
- Standby Current: 0.1μA (typ)
- Signal-to-Noise Ratio (Voice band): 65dB (typ)
- Total Harmonic Distortion + Noise: 0.1% (typ)
- PSRR (217Hz): 99dB (typ)
All trademarks are the property of their respective owners.
The LMV1091 is a fully analog dual differential input, differential output, microphone array amplifier designed to reduce background acoustic noise, while delivering superb speech clarity in voice communication applications.
The LMV1091 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 using ±0.5dB matched micropohones.
Part of the Powerwise™ family of energy efficient solutions, the LMV1091 consumes only 600μA of supply current providing superior performance over DSP solutions consuming greater than ten times the power.
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.
技术文档
| 顶层文档 | 类型 | 标题 | 格式选项 | 下载最新的英语版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 数据表 | LMV1091 Dual Input, Far Field Noise Suppression Microphone Amplifier 数据表 (Rev. C) | 2013-5-2 | |||
| 用户指南 | LMV1091 Noise Suppression Microphone Amplifier Evaluation Kit User's Guide (Rev. A) | 2013-5-1 |
设计与开发
如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| DSBGA (YFQ) | 25 | Ultra Librarian |
订购和质量
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