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LA75665NM - VIF/SIF IF Signal-Processing Circuit

Key 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 [VIF Block].
  • VIF amplifier.
  • PLL detector.
  • BNC.
  • RF AGC.
  • EQ amplifier.
  • AFT.
  • IF AGC.
  • Buzz canceller 12.6 1.5 0.15 0.35 1.0 0.8 0.1 SANYO: MFP24S Any and all SANYO products described or contained he.

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Full PDF Text Transcription (Reference)

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Ordering number : ENN*6954 Monolithic Linear IC LA75665NM VIF/SIF IF Signal-Processing Circuit with TV/VCR PAL and NTSC Multisound Support Preliminary Overview The LA75665NM 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 LA75665NM also includes a buzz canceller that suppresses Nyquist buzz to achieve improved audio quality.