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LMV1090 Dual Input, Far Field Noise Suppression Microphone Amplifier
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PRELIMINARY
LMV1090
July 1, 2009
Dual Input, Far Field Noise Suppression Microphone Amplifier
General Description
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 farfield rejection is possible in a properly configured and using ±0.5dB matched micropohones.