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TDA3506 - Video control combination circuit

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General Description

TDA3505 TDA3506 The TDA3505 and TDA3506 are monolithic integrated circuits which perform video control functions in a PAL/SECAM decoder.

The TDA3505 is for negative colour difference signals −(R-Y), −(B-Y) and the TDA3506 is for positive colour difference signals +(R-Y), +(B-Y).

The required input signals are: luminance and colour difference (negative or positive) and a 3-level sandcastle pulse for control purposes.

Overview

INTEGRATED CIRCUITS DATA SHEET TDA3505 TDA3506 Video control combination circuit with automatic cut-off control Product specification File under Integrated Circuits, IC02 November 1987 Philips Semiconductors Product.

Key Features

  • Capacitive coupling of the colour difference and luminance input signals with black level clamping in the input stages.
  • Linear saturation control acting on the colour difference signals.
  • (G-Y) and RGB matrix.
  • Linear transmission of inserted signals.
  • Equal black levels for inserted and matrixed signals.
  • 3 identical channels for the RGB signals QUICK.

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