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LA7289 - VCR Audio Signal Record and Playback Processor

Description

Ground used for the pin 2 head switching circuit and the EQ amplifier.

Features

  • Adjustment-free record bias current (automatic adjustment circuit adopted).
  • Built-in record bias oscillator circuit power supply switch.
  • Record equalizer choke coil no longer required.
  • Playback amplifier input noise voltage: 1.0 µV rms.
  • Value of the ALC detector capacitor reduced (to 3.3 µF).
  • Built-in high-voltage head switching circuit.
  • Supply voltage: supports both 9 and 12-V operation.
  • Built-in input switching circuit (f.

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Datasheet preview – LA7289

Datasheet Details

Part number LA7289
Manufacturer SANYO (now Panasonic)
File Size 210.67 KB
Description VCR Audio Signal Record and Playback Processor
Datasheet download datasheet LA7289 Datasheet
Additional preview pages of the LA7289 datasheet.

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Full PDF Text Transcription

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Ordering number : EN5642 Monolithic Linear IC LA7289 VCR Audio Signal Record and Playback Processor Overview The LA7289 includes on chip all functions required for the record and playback of VCR audio signals and achieves complete adjustment-free operation by the adoption of an automatic record bias current adjustment circuit. In addition, the inclusion of a switching circuit for switching between tuner and line input in addition to the circuits provided by earlier ICs makes the LA7289 truly optimal for audio VCR products. Features • Adjustment-free record bias current (automatic adjustment circuit adopted) • Built-in record bias oscillator circuit power supply switch • Record equalizer choke coil no longer required • Playback amplifier input noise voltage: 1.
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