●GENERAL DESCRIPTION
●The SAA7120H; SAA7121H encodes digital YUV video data to an NTSC or PAL CVBS or S-video signal.
●The circuit accepts CCIR compatible YUV data with 720 active pixels per line in 4:2:2multiplexed formats, for example MPEG decoded data. It includes a sync/clock generator and on-chip DACs.
●FEATURES
●• Monolithic CMOS 3.3 V device
●• Digital PAL/NTSC encoder
●• System pixel frequency 13.5 MHz
●• Accepts MPEG decoded data on 8-bit wide input port; input data format CB-Y-CR(CCIR 656)
●• Three Digital-to-Analog Converters (DACs) for Y, C and CVBS two times oversampled with 10-bit resolution
●• Real-time control of subcarrier
●• Cross-colour reduction filter
●• Closed captioning encoding and World Standard
● Teletext (WST) and North-American Broadcast Text System (NABTS) teletext encoding including sequencerand filter
●• Line 23 Wide Screen Signalling (WSS) encoding
●• Fast I2C-bus control port (400 kHz)
●• Encoder can be master or slave
●• Programmable horizontal and vertical input synchronization phase
●• Programmable horizontal sync output phase
●• Internal Colour Bar Generator (CBG)
●• 2×2 bytes in lines 20 (NTSC) for copy guard management system can be loaded via I2C-bus
●• Down mode of DACs
