SAA4995WP

INTEGRATED CIRCUITS DATA SHEET SAA5246A Integrated VIP and Teletext (IVT1.0) Product specification Supersedes data of August 1992 File under Integrated Circuits, IC02 January 1993 Philips Semiconductors Product specification Integrated VIP and Teletext (IVT1.0) FEATURES Complete Teletext decoder in a 48-pin DIL or 64-pin QFP, integrated circuit Single +5 V power supply Both video and scan related synchronization modes are supported RGB interface to standard colour decoder ICs, push-pull output drive Digital data slicer and display clock phase-locked loop reduce peripheral components to a minimum Data capture performance similar to SAA5231 (VIP2) Option for up to seven national languages Optional storage of packet 24 in the display memory Separate text and video signal quality detectors, 625/525 video status and language version all readable via I2C-bus Automatic ODD/EVEN output control with override Control of display PLL free-run and rolling header via I2C-bus VCS to SCS mode for stable 525 line status display. QUICK REFERENCE DATA SYMBOL VDD IDD Vsyn Vvid fXTAL Tamb supply current sync amplitude video amplitude crystal frequency operating ambient temperature PARAMETER positive supply voltage − 0.1 0.7 − −20 MIN. 4.5 64 0.3 1.0 27 − TYP. 5.0 DESCRIPTION SAA5246A The SAA5246A is a single-chip teletext decoder IC for decoding 625 line base World System Teletext transmissions. The teletext decoder hardware is based on the Enhanced Computer Controlle...