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TDA9181 - Integrated multistandard comb filter

Description

The TDA9181 is a an adaptive PAL/NTSC comb filter with two internal delay lines, filters, clock control and input clamps.

Video standards PAL B, G, H, D, I, M and N and NTSC M are supported.

Two CVBS input signals can be selected by means of an input switch.

Features

  • One-chip multistandard adaptive comb filter.
  • Cross luminance reduction.
  • Cross colour reduction.
  • No chroma trap, therefore sharper vertical luminance transients.
  • Analog discrete-time signal processing, therefore no quantization noise.
  • Anti-aliasing and reconstruction filters are included.
  • Input switch selects between two Y/CVBS inputs.
  • Output switch selects between combed CVBS and an external Y/C source.
  • fSC as well.

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Part Number Description
TDA9183 Integrated NTSC comb filter
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Full PDF Text Transcription

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INTEGRATED CIRCUITS DATA SHEET TDA9181 Integrated multistandard comb filter Objective specification File under Integrated Circuits, IC02 2000 Nov 22 Philips Semiconductors Objective specification Integrated multistandard comb filter FEATURES • One-chip multistandard adaptive comb filter • Cross luminance reduction • Cross colour reduction • No chroma trap, therefore sharper vertical luminance transients • Analog discrete-time signal processing, therefore no quantization noise • Anti-aliasing and reconstruction filters are included • Input switch selects between two Y/CVBS inputs • Output switch selects between combed CVBS and an external Y/C source • fSC as well as 2 × fSC colour subcarrier signal may be applied • Alignment free • Few external components • Low power.
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