LMV1090 Far Field Noise Suppression Microphone Amplifier

National Semiconductor Corporation

Description

LMV1090 Dual Input, Far Field Noise Suppression Microphone Amplifier www.DataSheet4U.com PRELIMINARY LMV1090 July 1, 2009 Dual Input, Far Field N.
The LMV1090 is a fully analog dual differential input, differential output, microphone array amplifier designed to reduce background acoustic noise, w.

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Datasheet Specifications

Part number: LMV1090
Manufacturer: National Semiconductor Corporation
File Size: 778.93 KB
Datasheet: LMV1090_NationalSemiconductorCorporation.pdf
Description: Far Field Noise Suppression Microphone Amplifier

Features

* 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

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. Part of the Powerwise™ family of

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LMV1090 Far Field Noise Suppression Microphone Amplifier National Semiconductor Corporation

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