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LA7289

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 V rms• Value of the ALC det...

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SeekIC No. : 004390653 Detail

LA7289: Features: • Adjustment-free record bias current (automatic adjustment circuit adopted)• Built-in record bias oscillator circuit power supply switch• Record equalizer choke coil no ...

LA7289 Data Sheet

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Part Number:
LA7289
Supply Ability:
5000

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  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



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 V rms
• Value of the ALC detector capacitor reduced (to 3.3 F)
• Built-in high-voltage head switching circuit
• Supply voltage: supports both 9 and 12-V operation
• Built-in input switching circuit (for the line and tuner inputs)


Specifications

Parameter Symbol Conditions Ratings Unit
Maximum supply voltage VCC max   14 V
Pin 2 input voltage VIN2 DC ±45 Vp-p
Pin 2 input current IIN2   ±1.5 mA
Allowable power dissipation Pd max Ta  65 °C 500 mW
Operating temperature Topr   10 to +65 °C
Storage temperature Tstg   55 to +150 °C



Description

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.




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