SAA7121H - Digital video encoder - NXP Semiconductors
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 sequencer
and filter
• Line 23 Wide Screen Signalling (WSS) encoding
• Fast I2
C-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 I2
C-bus
• Down mode of DACs
**注意 & Noted:
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