GENERAL DESCRIPTION

The SAA5284 is a Vertical Blanking Interval (VBI) and Full Field (FF) video data acquisition device tailored for application on PC add-in cards, PC mother-boards, set-top boxes and as a SAA5250 replacement. The IC in combination with a range of software modules will acquire most existing formats of broadcast VBI and FF data.

FEATURES

? High performance multi-standard data slicer

? Intercast? (Intel Corporation) compatible

? Teletext (WST, Chinese teletext) (625 lines)

? Teletext (US teletext, NABTS and MOJI) (525 lines)

? Wide Screen Signalling (WSS), Video Programming Signal (VPS)

? Closed Caption (Europe, US)

? Data broadcast, PDC (packet 30 and 31)

? User programmable data format (programmable framing code)

? 2 kbytes data cache on-chip to avoid data loss and reduce host CPU overhead

? Filtering of packets 30 and 31 WST/NABTS

? Choice of clock frequencies, direct-in clock or crystal oscillator

? Parallel interface, Motorola, Intel and digital video bus

? I2C-bus control

? Data transport by digital video bus

? Choice of programmable interrupt, DMA or polling driven

? Data type selectable video line by video line, with Vertical Blanking Interval and Full Field mode

? Single IC with few external components and small footprint QFP44 package

? Optimized for EMC.