saf7118 NXP Semiconductors, saf7118 Datasheet - Page 39

• Manufacturer Part Number: saf7118
• Description: Multistandard Video Decoder With Adaptive Comb Filter And Component Video Input
• Manufacturer: NXP Semiconductors

Philips Semiconductors
SAF7118_3
Product data sheet
Fig 27. Components Y-C
a. Y output range.
255
235
128
“ITU Recommendation 601/656” digital levels with default CBCS (decoder) settings CCON[7:0] = 44h, CBRI[7:0] = 80h and
CSAT[7:0] = 40h.
Equations for modification to the Y-C
Luminance:
Chrominance:
It should be noted that the resulting levels are limited to 1 to 254 in accordance with “ITU Recommendation 601/656” .
16
0
LUMINANCE 100 %
8.3 Decoder output formatter
Y
OUT
C
The output interface block of the decoder part contains the ITU 656 formatter for the
expansion port data output XPD7 to XPD0 (for a detailed description see
and the control circuit for the signals needed for the internal paths to the scaler and data
slicer part. It also controls the selection of the reference signals for the RT port (RTCO,
RTS0 and RTS1) and the expansion port (XRH, XRV and XDQ).
The generation of the decoder data type control signals SET_RAW and SET VBI is also
done within this block. These signals are decoded from the requested data type for the
scaler input and/or the data slicer, selectable by the control registers LCR2 to LCR24 (see
Section
For each LCR value from 2 to 23 the data type can be programmed individually;
LCR2 to LCR23 refer to line numbers. The selection in LCR24 values is valid for the rest
of the corresponding field. The upper nibble contains the value for field 1 (odd), the lower
nibble for field 2 (even). The relationship between LCR values and line numbers can be
adjusted via VOFF8 to VOFF0, located in subaddresses 5Bh (bit D4) and 5Ah
(bits D7 to D0) and FOFF subaddress 5Bh (bit D7). The recommended values are
VOFF[8:0] = 03h for 50 Hz sources (with FOFF = 0) and VOFF[8:0] = 06h for 60 Hz
sources (with FOFF = 1), to accommodate line number conventions as used for PAL,
SECAM and NTSC standards; see
B
001aac241
C
=
B
white
R OUT
black
-C
Int
R
range
CCON
---------------- -
10; subaddresses 41h to 57h).
=
68
Int
B
CSAT
-------------- -
-C
64
Y
R
–
levels via CBCS control I
b. C
128
255
240
212
128
44
16
Rev. 03 — 16 February 2006
0
(
C
B
B
+
,
C
C
output range.
CBRI
B
R
-COMPONENT
–
128
Multistandard video decoder with adaptive comb filter
)
Figure 28
+
128
blue 100 %
blue 75 %
colorless
yellow 75 %
yellow 100 %
2
C-bus bytes CBRI, CCON and CSAT.
001aac480
and
Figure
29.
c. C
255
240
212
128
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
44
16
0
R
output range.
C
R
-COMPONENT
SAF7118
Section
red 100 %
red 75 %
colorless
cyan 75 %
cyan 100 %
001aac481
9.5.1)
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