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.