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LA7566 - VIF/SIF IF Signal-Processing Circuit

Features

  • No coils are used in the AFT and SIF blocks, making these circuits adjustment free.
  • PAL / NTSC multisound system can be constructed easily.
  • Built-in buzz canceller for excellent audio performance Ambient temperature, Ta.
  • °C Specifications Maximum Ratings at Ta = 25°C Parameter Maximum supply voltage Circuit voltage Symbol VCC max V7, V9, V10, V17 I1 Circuit current I13 I18 Allowable power dissipation Operating temperature Storage temperature Pd max Topr T.

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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 : EN5764 Monolithic Linear IC LA7566 VIF/SIF IF Signal-Processing Circuit with TV/VCR PAL and NTSC Multisound Support Overview The LA7566 is a VIF/SIF IC that supports PAL and NTSC multisound and that adopts a semi-adjustment-free system. To simplify adjustment, the VIF block adopts a technique in which AFT adjustment is no longer required by VCO adjustment. The SIF block supports audio multidetection by adopting a PLL detection technique. The SIF block provides 4 inputs with IC internal switching for easy design of multi-sound systems. Additionally, these switches can also be used for video system sound trap switching. The LA7566 also includes a buzz canceller that suppresses Nyquist buzz to achieve improved audio quality.
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