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LA7565B - IF Signal-Processing IC

Features

  • Allows the use of a switch circuit to switch between spilt and intercarrier operation.
  • Improved buzz and buzz beat characteristics provided by a PLL detector plus buzz canceller system.
  • The IF AGC second filter is built in.
  • PAL/NTSC multi-system audio can be implemented easily.
  • Adjustment-free circuit design that does not require AFT and SIF coils. SANYO: MFP24S SANYO Electric Co. ,Ltd. Semiconductor Bussiness Headquarters TOKYO OFFICE Tokyo Bld.

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LA7565BM IF Signal-Processing IC
LA7566 VIF/SIF IF Signal-Processing Circuit
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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 :EN5636 Monolithic Linear IC LA7565B, 7565BM IF Signal-Processing IC for PAL/NTSC Multi-System Audio TV and VCR Products Overview The LA7565B/M is a PAL/NTSC multi-system audio VIF/SIF signal-processing IC that adopts a minimaladjustment technique. The VIF circuit adopts a minimaladjustment technique in which AFT adjustment is made unnecessary by VCO adjustment to simply end product adjustment. The FM detector circuit uses PLL detections to support multi-system audio detection. Since the LA7565BM include an SIF converter on chip, it is easy to implement multi-system audio. In addition, it also includes a buzz canceller that suppresses Nyquist buzz to achieve improved audio quality.
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