LMV1090
- No Loss of Voice Intelligibility
- No Added Processing Delay
- Low Power Consumption
- Differential Outputs
- Excellent RF Immunity
- Adjustable 12 - 54dB Gain
- Shutdown Function
- Space-Saving 16–Bump DSBGA Package
Key Specifications
- Far Field Noise Suppression Electrical (FFNSE at f = 1kHz): 34dB (typ)
- SNRIE 26dB (typ)
- 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 LMV1090 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 LMV1090 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 microphones.
Part of the PowerWise family of energy efficient solutions, the LMV1090 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
| 类型 | 标题 | 下载最新的英语版本 | 日期 | |||
|---|---|---|---|---|---|---|
| * | 数据表 | LMV1090 Dual Input, Far Field Noise Suppression Microphone Amplifier 数据表 (Rev. I) | 2013年 5月 2日 | |||
| EVM 用户指南 | LMV1089 Noise Supp Microphne Amp Demo Brd UG (Rev. B) | 2013年 5月 1日 | ||||
| 用户指南 | LMV1090 Noise Suppression Microphone Amplifier Evaluation Kit (Rev. B) | 2013年 5月 1日 |
设计和开发
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|---|---|---|
| DSBGA (YZR) | 16 | 查看选项 |
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