GR581 - Adaptive Highpass Filter

Gennum Corporation

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Datasheet Details

Part number: GR581
Manufacturer: Gennum Corporation
File Size: 104.55 KB
Datasheet: GR581_GennumCorporation.pdf
Description: Adaptive Highpass Filter

GR581 Product details

Description

The GR581 is a level-sensitive, adaptive highpass filter comprised of a current controlled highpass filter, a half- wave rectifier, a voltage regulator for microphone bias and a separate preamplifier.

Features

unity gain 12 dB/oct. highpass Butterworth filter.
adaptive frequency range from 200 Hz to 2 kHz.
rectifier threshold set to 82 dBSPL (adjustable).
low noise, typically 2.6 µV.
300 µA typical current drain.
operates from 1.1 to 3 VDC.
preamplifier with 56 dB open loop gain.

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