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 : 2 multiplexed formats, for example MPEG decoded data. It includes a sync/clock generator and on-chip DACs.

Key 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 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 x 2 bytes in lines 20 (NTSC) for copy guard management system can be loaded via I²C-bus
• Down mode of DACs
• Controlled rise/fall times of synchronization and blanking output signals
• Macrovision™ ^* Pay-per-View copy protection system rev. 7.01 and rev. 6.1 as option; this applies to SAA7120H only. The device is protected by USA patent numbers 4631603, 4577216 and 4819098 and other intellectual property rights. Use of the Macrovision anti-copy process in the device is licensed for non-commercial home use only. Reverse engineering or disassembly is prohibited. Please contact your nearest Philips Semiconductors sales office for more information
• QFP44 package.

*Macrovision™ is a trademark of the Macrovision Corporation.

Block Diagram

Datasheet

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