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SAA5250 - Interface for data acquisition and control for multi-standard teletext systems

General Description

The SAA5250 is a CMOS Interface for Data Acquisition and Control (CIDAC) designed for use in conjunction with the Video Input Processor (SAA5230) in a multi-standard teletext decoder.

Key Features

  • 7,5 MHz maximum conversion rate.
  • Three prefixes; DIDON, NABTS and U. K. teletext (CEEFAX).
  • Mode without prefix.
  • Internal calculation of the validation (VAL) and colour burst blanking (CBB) signals, if programmed.
  • Programmable framing code and channel numbers.
  • Error parity calculation or not (odd parity).
  • Hamming processing of the prefix byte.
  • Full channel or VBI reception.
  • Slow/fast mode (detection of page flags or.

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Datasheet Details

Part number SAA5250
Manufacturer NXP Semiconductors
File Size 173.56 KB
Description Interface for data acquisition and control for multi-standard teletext systems
Datasheet download datasheet SAA5250 Datasheet

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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 SAA5250 Interface for data acquisition and control (for multi-standard teletext systems) Product speciļ¬cation File under Integrated Circuits, IC02 January 1987 Philips Semiconductors Product speciļ¬cation Interface for data acquisition and control (for multi-standard teletext systems) GENERAL DESCRIPTION SAA5250 The SAA5250 is a CMOS Interface for Data Acquisition and Control (CIDAC) designed for use in conjunction with the Video Input Processor (SAA5230) in a multi-standard teletext decoder. The device retrieves data from a user selected channel (channel demultiplexer), as well as providing control signals and consecutive addressing space necessary to drive a 2 K bytes buffer memory.