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TDA2579C - Synchronization circuit

Description

Vertical part fV = 60 Hz (M) system TDA2579C Vertical synchronization pulse separator without external components and two integration times Zener diode reference voltage source for the vertical sawtooth generator and vertical comparator Divider system with t

Features

  • Synchronization and horizontal part.
  • Horizontal sync separator and noise inverter.
  • Horizontal oscillator.
  • Horizontal output stage.
  • Horizontal phase detector (sync to oscillator).
  • Triple current source in the phase detector with automatic selection.
  • Normal phase detector time constant is increased to fast during the vertical blanking period (external switching for VTR conditions not necessary).
  • Slow phase detector time constant and ga.

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Full PDF Text Transcription

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INTEGRATED CIRCUITS DATA SHEET TDA2579C Synchronization circuit with synchronized vertical divider system for 60 Hz Preliminary specification File under Integrated Circuits, IC02 January 1994 Philips Semiconductors Philips Semiconductors Preliminary specification Synchronization circuit with synchronized vertical divider system for 60 Hz FEATURES Synchronization and horizontal part • Horizontal sync separator and noise inverter • Horizontal oscillator • Horizontal output stage • Horizontal phase detector (sync to oscillator) • Triple current source in the phase detector with automatic selection • Normal phase detector time constant is increased to fast during the vertical blanking period (external switching for VTR conditions not necessary) • Slow phase detector time constant and gated
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