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LA7567NM - TV and VCR VIF/SIF IF Signal-Processing Circuit

Description

Pin No.

SIF input.

The input impedance is about 1 kΩ.

Since buzzing and buzz beating can occur if interference enters this input pin, care must be taken when design the pattern layout for this pin.

Features

  • Both AFT and SIF inductors built in, thus making adjustment of external inductance unnecessary.
  • A PAL/NTSC multi-format audio system can be constructed easily.
  • Built-in buzz canceller for excellent audio performance.
  • VCC = 5 V, low power dissipation (250 mW) Specifications Maximum Ratings at Ta = 25°C Parameter Maximum supply voltage Circuit voltage Symbol VCC max V13, V17 I6 Circuit current I10 I24 Allowable power dissipation Operating temperature Storag.

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Part Number Description
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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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Ordering number : EN5765 Monolithic Linear IC LA7567N, 7567NM TV and VCR VIF/SIF IF Signal-Processing Circuit with PAL/NTSC Multi-Format Audio Support Overview The LA7567N and LA7567NM are PAL/NTSC multiformat audio VIF/SIF IF ICs that adopt a semiadjustment-free system. The VIF block adopts a technique that makes AFT adjustment unnecessary by adjusting the VCO, thus simplifying the adjustment steps in the manufacturing process. PLL detection is adopted in the FM detector to support multi-format audio detection. A built-in SIF converter is included to simplify multi-format system designs. A 5-V power-supply voltage is used to match that used in most multimedia systems. In addition, these ICs also include a buzz canceller to suppress Nyquist buzz and provide high audio quality.
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