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TDA4780 - RGB video processor

General Description

The TDA4780 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.

Key Features

  • Gamma adjust.
  • Dynamic black control (adaptive black).
  • All input signals clamped on black-levels.
  • Automatic cut-off control, alternative: output clamping on fixed levels.
  • Three adjustable reference voltage levels via I2C-bus for automatic cut-off control.
  • Luminance/colour difference interface.
  • Two luminance input levels allowed.
  • Two RGB interfaces controlled by either fast switches or by I2C-bus.
  • Two peak drive limi.

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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 TDA4780 RGB video processor with automatic cut-off control and gamma adjust Preliminary specification Supersedes data of May 1994 File under Integrated Circuits, IC02 1997 Feb 06 Philips Semiconductors Preliminary specification RGB video processor with automatic cut-off control and gamma adjust FEATURES • Gamma adjust • Dynamic black control (adaptive black) • All input signals clamped on black-levels • Automatic cut-off control, alternative: output clamping on fixed levels • Three adjustable reference voltage levels via I2C-bus for automatic cut-off control • Luminance/colour difference interface • Two luminance input levels allowed • Two RGB interfaces controlled by either fast switches or by I2C-bus • Two peak drive limiters, selection via • Blue stretc