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SAA7120; SAA7121
Information as of 2000-08-25
SAA7120; SAA7121; Digital Video Encoder (ConDENC)
The SAA7120; SAA7121 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.
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Monolithic CMOS 3.3 V (5 V) device
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Digital PAL/NTSC encoder
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System pixel frequency 13.5 MHz
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Accepts MPEG decoded data on 8-bit wide input port; input data format Cb-Y-Cr (CCIR 656), SAV and EAV
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Three DACs for Y, C and CVBS, two times oversampled with 10 bit resolution
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Real time control of subcarrier
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Cross colour reduction filter
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Closed captioning encoding and WST- and NABTS-Teletext encoding including sequencer and filter
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Line 23 wide screen signalling encoding
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Fast I2C-bus control port (400 kHz)
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Encoder can be master or slave
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Programmable horizontal and vertical input synchronization phase
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Programmable horizontal sync output phase
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Internal colour bar generator (CBG)
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2 x 2 bytes in lines 20 (NTSC) for copy guard management system can be loaded via I2C-bus
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Down-mode of DACs
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Controlled rise/fall times of synchronization and blanking output signals
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