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GR581 Datasheet - Gennum Corporation

Adaptive Highpass Filter

GR581 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

* p

GR581 General 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. The internal rectifier senses the long term average signal level and controls the filter response b.

GR581 Datasheet (104.55 KB)

Preview of GR581 PDF

Datasheet Details

Part number:

GR581

Manufacturer:

Gennum Corporation

File Size:

104.55 KB

Description:

Adaptive highpass filter.

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GR581 Adaptive Highpass Filter Gennum Corporation

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