SAA7120H
Digital video encoder
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 × 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?(1)
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.
2 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.
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