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DP8459 Datasheet - National Semiconductor

DP8459_NationalSemiconductor.pdf

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Datasheet Details

Part number:

DP8459

Manufacturer:

National Semiconductor

File Size:

403.77 KB

Description:

All-code data synchronizer.

DP8459, All-Code Data Synchronizer

The DP8459 Data Synchronizer is an integrated phase locked loop circuit which has been designed for application in magnetic hard disk, flexible (floppy) disk, optical disk, and tape drive memory systems for data re-synchronization and clock recovery with any standard recording code, operating to 25 Mb

DP8459 Features

* n n n n n n n n n n n Fully integrated dual-gain PLL Zero phase start lock sequence 250 Kbit/sec

* 25 Mbit/sec data rate range Frequency lock capability (optional) for all standard recording codes Digital window strobe control, 5-bit resolution Two-port PLL filter network PLL free-run (Coast) c

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