LMV1091 Far Field Noise Suppression Microphone Amplifier

National Semiconductor

Description

LMV1091 Dual Input, Far Field Noise Suppression Microphone Amplifier October 28, 2009 LMV1091 Dual Input, Far Field Noise Suppression Microphone Amp.
The LMV1091 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: LMV1091
Manufacturer: National Semiconductor
File Size: 888.93 KB
Datasheet: LMV1091_NationalSemiconductor.pdf
Description: Far Field Noise Suppression Microphone Amplifier

Features

* 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

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 farfield rejection is possible in a properly configured and using ±0.5dB matched micropohones. Part of the Powerwise™ family of

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LMV1091 Far Field Noise Suppression Microphone Amplifier National Semiconductor

National Semiconductor LMV1091-like datasheet