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TV ENCODER
COMPOSITION OF ANALOG COMPOSITE SIGNAL
White Level
Black Level
Blank Level
Sync Level
Figure 17-3 shows horizontal timing. In X axis for TV composite out, it divide 3 timing parts. It is Back-Porch,
Active and Front-Porch. Back-Porch and Front-Porch are to synchronize signal. And Active-Region contains valid
data.
In Y axis for TV composite out, it contains luminance and chrominance component. DC-level in Figure 17-3
present luminance component. Also, Chrominance component is sampled by Burst frequency. Chrominance
component is shown by sine-wave form in Figure 17-3.
In according to TV system which are NTSC or PAL, it distinguishes Black-level from Blank-level.
Preliminary product information describe products that are in development,
for which full characterization data and associated errata are not yet available.
17-4
Specifications and information herein are subject to change without notice.
Back Porch
13.5MHz (1 Field)
Figure 17-3. Composition of Analog Composite Signal
S3C6400X RISC MICROPROCESSOR
Data
Active
100 IRE
7.5 IRE
40 IRE
Front
Porch
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