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HA12220 - CD-ROM Drive Head Amplifier

Datasheet Summary

Description

Pin No.

Features

  • Built-in variable resistors (+14 to.
  • 16% 2% steps) for adjusting tracking error EF balance.
  • Built-in variable resistors (.
  • 8 to +8dB 4dB steps) for rough adjusting tracking gain.
  • Built-in variable resistors (.
  • 8 to +8dB 4dB steps) for rough adjusting focus gain.
  • Built-in focus offset insertion circuit (.
  • 0.7 to +0.7V in 0.1V steps).
  • RF amplifier frequency characteristics 30MHz (.
  • 3dB) in case of peaking off.

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Datasheet preview – HA12220

Datasheet Details

Part number HA12220
Manufacturer Hitachi Semiconductor
File Size 143.48 KB
Description CD-ROM Drive Head Amplifier
Datasheet download datasheet HA12220 Datasheet
Additional preview pages of the HA12220 datasheet.

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Full PDF Text Transcription

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HA12220F CD-ROM Drive Head Amplifier IC ADE-207-230 (Z) Target Specification 1st. Edition April 1997 Functions • RF amplifier (Built-in equalizer changing circuit) • Focus error amplifier (fc = 60kHz Typ) • Tracking error amplifier (Built-in cut-off frequency changing circuit fc = 30kHz, 60kHz, 100kHz, 200kHz Typ) • FOK detection circuit (Built-in Vth changing circuit) • Mirror detection circuit • Defect detection circuit • APC amplifier • RFAGC amplifier Features • Built-in variable resistors (+14 to –16% 2% steps) for adjusting tracking error EF balance • Built-in variable resistors (–8 to +8dB 4dB steps) for rough adjusting tracking gain • Built-in variable resistors (–8 to +8dB 4dB steps) for rough adjusting focus gain • Built-in focus offset insertion circuit (–0.7 to +0.7V in 0.
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