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TDA2546A - Quasi-split-sound circuit

General Description

The TDA2546A is a monolithic integrated circuit for quasi-split-sound processing, including 5,5 MHz demodulation, in television receivers.

Key Features

  • 1st i. f. (V. C. : vision carrier plus S. C. : sound carrier).
  • 3-stage gain controlled i. f. amplifier.
  • A. G. C. circuit.
  • Reference amplifier and limiter amplifier for vision carrier (V. C. ) processing.
  • Linear multiplier for quadrature demodulation 2nd i. f. (5,5 MHz signal).
  • 8-stage limiter amplifier.
  • Quadrature demodulator.
  • A. F. amplifier with de-emphasis.
  • AV switch QUICK.

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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 TDA2546A Quasi-split-sound circuit with 5,5 MHz demodulation Product specification File under Integrated Circuits, IC02 February 1985 Philips Semiconductors Product specification Quasi-split-sound circuit with 5,5 MHz demodulation GENERAL DESCRIPTION TDA2546A The TDA2546A is a monolithic integrated circuit for quasi-split-sound processing, including 5,5 MHz demodulation, in television receivers. Features 1st i.f. (V.C.: vision carrier plus S.C.: sound carrier) • 3-stage gain controlled i.f. amplifier • A.G.C. circuit • Reference amplifier and limiter amplifier for vision carrier (V.C.) processing • Linear multiplier for quadrature demodulation 2nd i.f. (5,5 MHz signal) • 8-stage limiter amplifier • Quadrature demodulator • A.F.