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XR-3470A - Floppy Disk Read Amplifier

Datasheet Summary

Description

The XR-3470Al3470B is read amplifier system designed primarily for use in a floppy disk drive system.

It is designed to perform the complete readback function, by accepting the readback signal from a magnetic head and converting it into digital output pulses.

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Datasheet Details

Part number XR-3470A
Manufacturer Exar
File Size 247.40 KB
Description Floppy Disk Read Amplifier
Datasheet download datasheet XR-3470A Datasheet
Additional preview pages of the XR-3470A datasheet.

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Full PDF Text Transcription

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XR-3470A/3470B Floppy Disk Read Amplifier GENERAL DESCRIPTION The XR-3470Al3470B is read amplifier system designed primarily for use in a floppy disk drive system. It is designed to perform the complete readback function, by accepting the readback signal from a magnetic head and converting it into digital output pulses. To perform this function, the circuit contains a high-frequency amplifier, an active differentiator, a zero-crossing detector, and a time domain filter. The XR-3470Al3470B is suited for systems with data transfer rates up to 3 megabaud. High input sensitivity allows operation with signal levels as low as 1.4 mV pp, which gives it the flexibility to be used for single or double density floppy disk systems.
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