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DP84910 - Integrated Read Channel

Description

The DP84910 integrates most functions of the hard disk read channel electronics onto a single 5V chip It incorporates a pulse servo detector a programmable integrated channel filter a data synchronizer a frequency synthesizer and a serial port interface The chip receives data from a read preamplifie

Features

  • Y Y Y Y Y Y Y Y Y Y Y Operates at NRZ data rates up to 50 Mbits sec (equivalent 2 3 (1 7) code data rate) Operates with a single a 5V power supply Multiple power down modes available with dedicated SLEEP and IDLE SERVO power down pins Sleep mode included where ICC e 2 mA maximum Directly addresses zoned data recording requirements Integrated channel filter with selectable equalization and bandwidth eliminates multiple external filter elements Fully integrated frequency synthesizer on-chip.

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Datasheet Details

Part number DP84910
Manufacturer National Semiconductor
File Size 377.62 KB
Description Integrated Read Channel
Datasheet download datasheet DP84910 Datasheet
Additional preview pages of the DP84910 datasheet.

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Full PDF Text Transcription

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DP84910 (-36 -50) Integrated Read Channel October 1994 DP84910 (-36 -50) Integrated Read Channel General Description The DP84910 integrates most functions of the hard disk read channel electronics onto a single 5V chip It incorporates a pulse servo detector a programmable integrated channel filter a data synchronizer a frequency synthesizer and a serial port interface The chip receives data from a read preamplifier filters and peak detects the read pulses for both data and embedded servo information and resynchronizes the data with the system clock The DP84910 is available in two versions DP84910VHG-36 and DP84910VHG-50 The DP84910VHG-36 is specified to operate over a data rate range of 7 5 Mbits sec to 36 Mbits sec The other version DP84910VHG-50 will operate over a data rate range of 1
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