DESCRIPTION
The STV5347 teletext decoder is computer-controlled. It can store either 4 teletext pages without ghostrow,or 2 teletextpageswith ghostrows.Data slicing and capturing extracts the teletext informationembedded in thecompositevideo signal. Control is accomplishedvia a two wire serial I2C bus . Chip address is 22h. Internal ROM provides a character set suitable to display text using up to seven national languages.Hardware and software features allow selectable master/slave synchronization configurations.The STV5347 also supports facilities for reception and display of current level protocol data.

■ COMPLETE TELETEXT AND VPS DECODER INCLUDING AN 4 PAGE MEMORY ON A SINGLE CHIP
■ UPWARD SOFTWARE COMPATIBLE WITH PREVIOUS SGS-THOMSON’s MULTICHIP SOLUTIONS (SAA5231, SDA5243, STV5345)
■ PERFORM PDC SYSTEM A (VPS) AND PDC SYSTEM B (8/30/2) DATA STORAGE SEPARATLY
■ DEDICATED “ERROR FREE” OUTPUT FOR VALID PDC DATA
■ INDICATION OF LINE 23 FOR EXTERNAL USE
■ SINGLE +5V SUPPLY VOLTAGE
■ SINGLE 13.875MHz CRYSTAL
■ REDUCED SET OF EXTERNAL COMPONENTS, NO EXTERNAL ADJUSTMENT
■ OPTIMIZED NUMBER OF DIGITAL SIGNALS REDUCING EMC RADIATION
■ HIGH DENSITY CMOS TECHNOLOGY
■ DIGITAL DATA SLICER AND DISPLAY CLOCK PHASE LOCK LOOP
■ 28 PIN DIP & SO PACKAGE