ADV7340EBZ AD [Analog Devices], ADV7340EBZ Datasheet - Page 73
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ADV7340EBZ
Manufacturer Part Number
ADV7340EBZ
Description
Manufacturer
AD [Analog Devices]
Datasheet
1.ADV7340EBZ.pdf
(88 pages)
- Current page: 73 of 88
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APPENDIX 2—SD WIDE SCREEN SIGNALING
Subaddress 0x99, Subaddress 0x9A, Subaddress 0x9B
The ADV7340/ADV7341 support wide screen signaling (WSS)
conforming to the ETSI 300 294 standard. WSS data is
transmitted on Line 23. WSS data can be transmitted only when
the device is configured in PAL mode. The WSS data is 14 bits
long. The function of each of these bits is shown in Table 55.
Table 55. Function of WSS
Bit Description
Aspect Ratio, Format, Position
Mode
Color Encoding
Helper Signals
Reserved
Teletext Subtitles
Open Subtitles
Surround Sound
Copyright
Copy Protection
500mV
11.0µs
SEQUENCE
RUN-IN
13
0
1
12
0
1
START
CODE
11
0
1
42.5µs
38.4µs
W0
10
0
0
1
1
W1
Figure 98. WSS Waveform Diagram
W2
9
0
1
0
1
Bit Number
Rev. 0 | Page 73 of 88
W3
8
0
1
W4
7
0
W5
6
0
1
The WSS data is preceded by a run-in sequence and a start code
(see Figure 98). If SD WSS (Subaddress 0x99, Bit 7) is set to
Logic 1, it enables the WSS data to be transmitted on Line 23.
The latter portion of Line 23 (42.5 sec from the falling edge of
HSYNC ) is available for the insertion of video. It is possible to
blank the WSS portion of Line 23 with Subaddress 0xA1, Bit 7.
W6
5
0
1
W7
4
0
1
W8
3
1
0
0
1
0
1
1
0
W9 W10 W11 W12 W13
2
0
0
0
0
1
1
1
1
1
0
0
1
1
0
0
1
1
0
0
1
0
1
0
1
0
1
Setting
4:3, full format, N/A
14:9, letterbox, center
14:9, letterbox, top
16:9, letterbox, center
16:9, letterbox, top
>16:9, letterbox, center
14:9, full format, center
16:0, N/A, N/A
Camera mode
Film mode
Normal PAL
Motion Adaptive ColorPlus
Not present
Present
No
Yes
No
Subtitles in active image area
Subtitles out of active image area
Reserved
No
Yes
No copyright asserted or unknown
Copyright asserted
Copying not restricted
Copying restricted
ADV7340/ADV7341
ACTIVE
VIDEO
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