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 nODD/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.
- Crystal is 27 MHz (readily available)
- Uses 8k x 8-bit external SRAM
Wiring to the RAM is very easy to layout:
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