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TDA4474 - Multistandard Video-IF and Quasi Parallel Sound Processing

General Description

The TDA4474 is an integrated bipolar circuit for full multistandard video/sound IF (VIF/SIF) signal processing in TV/VCR and Multimedia applications.

The circuit processes all TV video IF signals with negative modulation (e.g.

B/G standard), positive modulation (e.g.

Key Features

  • D 5V supply voltage; low power consumption D Active carrier generation by FPLL principle D Alignment.
  • free quasi parallel sound (QPS) mixer for FM/NICAM sound IF signals D Intercarrier output signal is gain controlled (frequency.
  • phase.
  • locked.
  • loop) synchronous demodulation for true (necessary for digital sound processing) D Complete alignment.
  • free AM demodulator with D Very linear video demodulation, good pulse response and excellent intermodulation f.

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Other Datasheets by TEMIC Semiconductors (now Microchip)

Part Number Description
TDA4470-M Multistandard Video-IF and Quasi Parallel Sound Processing
TDA4471 Multistandard Video-IF and Quasi Parallel Sound Processing
TDA4472-M Video-IF and Quasi Parallel Sound Processing
TDA4439 Video IF Amplifier for Multistandard TV and VTR
TDA4445A Quasi Parallel Sound Processing with Quadrature Intercarrier Demodulator
TDA4445B Quasi Parallel Sound Processing with Quadrature Intercarrier Demodulator
TDA4452 Video IF Amplifier for Multistandard TV Receiver and VTR Appliances
TDA4453 Video IF Amplifier for Multistandard TV Receiver and VTR Appliances
TDA4454 Multistandard VIF Amplifier and PLL Demodulator
TDA4455 Multistandard VIF Amplifier and PLL Demodulator

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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TELEFUNKEN Semiconductors TDA4474 Multistandard Video-IF and Quasi Parallel Sound Processing Description The TDA4474 is an integrated bipolar circuit for full multistandard video/sound IF (VIF/SIF) signal processing in TV/VCR and Multimedia applications. The circuit processes all TV video IF signals with negative modulation (e.g. B/G standard), positive modulation (e.g. L standard) and the AM, FM/NICAM sound IF signals. Four IF inputs (2 x VIF plus 2 x SIF) and the common pinning with TDA4471 gives flexibility to design a universal IF module for various applications.