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ADV7192KST Datasheet(PDF) 49 Page - Analog Devices

Part # ADV7192KST
Description  Video Encoder with Six 10-Bit DACs, 54 MHz Oversampling and Progressive Scan Inputs
PDF  69 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

ADV7192KST Datasheet(HTML) 49 Page - Analog Devices

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ADV7192
–49–
REV. 0
APPENDIX 4
WIDE SCREEN SIGNALING
The ADV7192 supports Wide Screen Signaling (WSS) conforming
to the standard. WSS data is transmitted on Line 23. WSS data
can only be transmitted when the ADV7192 is configured in PAL
mode. The WSS data is 14-bits long, the function of each of these
bits is as shown below. The WSS data is preceded by a run-in
sequence and a Start Code, see Figure 97. The bits are output
from the configuration registers in the following order: C/W20 = W0,
C/W21 = W1, C/W22 = W2, C/W23 = W3, C/W24 = W4,
C/W25 = W5, C/W26 = W6, C/W27 = W7, C/W10 = W8,
C/W11 = W9, C/W12 = W10, C/W13 = W11, C/W14 = W12,
C/W15 = W13. If the bit C/W07 is set to a Logic 1, it enables
the WSS data to be transmitted on Line 23. The latter portion of
Line 23 (42.5
µs from the falling edge of HSYNC) is available for
the insertion of video.
Function of CGMS Bits
Bit 0–Bit 2
Aspect Ratio/Format/Position
Bit 3
Is Odd Parity Check of Bit 0–Bit 2
Aspect
Format
Position
B0, B1,
B2,
B3
Ratio
Format
Position
0
0
0
1
4:3
Full Format
Nonapplicable
1
0
0
0
14:9
Letterbox
Center
0
1
0
0
14:9
Letterbox
Top
1
1
0
1
16:9
Letterbox
Center
0
0
1
0
16:9
Letterbox
Top
1
0
1
1
>16:9
Letterbox
Center
0
1
1
1
14:9
Full Format
Center
1
1
1
0
16:9
Nonapplicable
Nonapplicable
B4
0
Camera Mode
1
Film Mode
B5
0
Standard Coding
1
Motion Adaptive Color Plus
B6
0
No Helper
1
Modulated Helper
B7
RESERVED
B9
B10
0
0
No Open Subtitles
1
0
Subtitles in Active Image Area
0
1
Subtitles Out of Active Image Area
1
1
RESERVED
B11
0
No Surround Sound Information
1
Surround Sound Mode
B12 RESERVED
B13 RESERVED
W0
W1 W2
W3 W4
W5
W6 W7
W8 W9 W10 W11 W12 W13
500mV
RUN-IN
SEQUENCE
START
CODE
ACTIVE
VIDEO
38.4 s
42.5 s
11.0 s
Figure 98. WSS Waveform Diagram



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