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TDA4687 - Video processor

Description

The TDA4687 is a monolithic integrated circuit with a luminance and a colour difference interface for video processing in TV receivers.

Its primary function is to process the luminance and colour difference signals from a colour decoder which is equipped e.g.

Features

  • Operates from an 8 V DC supply.
  • Black level clamping of the colour difference, luminance and RGB input signals with coupling-capacitor DC level storage.
  • Two analog RGB inputs, selected either by fast switch signals or via I2C-bus; brightness and contrast control of both RGB inputs.
  • Saturation, contrast, brightness and white adjustment via I2C-bus.
  • Same RGB output black levels for Y/CD and RGB input signals.
  • Timing pulse generation from eithe.

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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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INTEGRATED CIRCUITS DATA SHEET TDA4687 Video processor with automatic cut-off control Product specification Supersedes data of May 1993 File under Integrated Circuits, IC02 1997 Jun 23 Philips Semiconductors Product specification Video processor with automatic cut-off control FEATURES • Operates from an 8 V DC supply • Black level clamping of the colour difference, luminance and RGB input signals with coupling-capacitor DC level storage • Two analog RGB inputs, selected either by fast switch signals or via I2C-bus; brightness and contrast control of both RGB inputs • Saturation, contrast, brightness and white adjustment via I2C-bus • Same RGB output black levels for Y/CD and RGB input signals • Timing pulse generation from either a 2 or 3-level sandcastle pulse for clamping, vertical sy
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