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SAF7118 View Datasheet(PDF) - Philips Electronics

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SAF7118 Datasheet PDF : 173 Pages
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Philips Semiconductors
Multistandard video decoder with adaptive
comb lter and component video input
8.2 Component video processing
Product specication
SAF7118
handbook, full pagewidth
FSW
FSW DELAY
G/Y
B / CB
R / CR
Y
RGB/Y-CB-CR CB
MATRIX
CR
DOWN
FOMATTER
and
Y
BCS
and
COMPONENT CB-CR
DELAY
MIXER
Y
to X-port
CB-CR
bypass
BCS
Y-CB-CR decoder MHB731
Fig.23 Component video processing.
8.2.1 RGB-TO-(Y-CB-CR) MATRIX
The matrix converts the RGB signals from the analog-to-digital converters/downsamplers to the Y-CB-CR representation.
The input and output word widths are 9 bits. The matrix has a gain factor of 1. The block provides a delay compensated
bypass for component input signals.
The matrix is represented by the following equations:
Y = 0.299 × R + 0.587 × G + 0.114 × B
CB = 0.5772 × (B Y)
CR = 0.7296 × (R Y)
2004 Jul 22
38
 

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