參數(shù)資料
型號: ADV7343BSTZ
廠商: Analog Devices Inc
文件頁數(shù): 86/108頁
文件大?。?/td> 0K
描述: IC ENCODER VIDEO W/DAC 64-LQFP
產(chǎn)品變化通告: ADV734x, ADV739x Feature Improvement
標(biāo)準(zhǔn)包裝: 1
類型: 視頻編碼器
應(yīng)用: DVD,Blu-Ray
電壓 - 電源,模擬: 3.3V
電壓 - 電源,數(shù)字: 1.8V
安裝類型: 表面貼裝
封裝/外殼: 64-LQFP
供應(yīng)商設(shè)備封裝: 64-LQFP(10x10)
包裝: 托盤
Data Sheet
ADV7342/ADV7343
Rev. | Page 79 of 108
SD WIDE SCREEN SIGNALING
Subaddress 0x99, Subaddress 0x9A, Subaddress 0x9B
The ADV7342/ADV7343 support wide screen signaling (WSS)
conforming to the ETSI 300 294 standard. WSS data is trans-
mitted 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 60. The
WSS data is preceded by a run-in sequence and a start code (see
Figure 97). The latter portion of Line 23 (after 42.5 s from the
falling edge of HSYNC) is available for the insertion of video.
WSS data transmission on Line 23 can be enabled using
Subaddress 0x99, Bit 7. It is possible to blank the WSS portion
of Line 23 with Subaddress 0xA1, Bit 7.
Table 60. Function of WSS
Bit Number
Bit Description
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Setting
Aspect Ratio, Format, Position
1
0
4:3, full format, N/A
0
1
14:9, letterbox, center
0
1
0
14:9, letterbox, top
1
0
1
16:9, letterbox, center
0
1
0
16:9, letterbox, top
1
0
1
>16:9, letterbox, center
1
0
14:9, full format, center
0
1
16:0, N/A, N/A
Mode
0
Camera mode
1
Film mode
Color Encoding
0
Normal PAL
1
Motion Adaptive ColorPlus
Helper Signals
0
Not present
1
Present
Reserved
0
N/A
Teletext Subtitles
0
No
1
Yes
Open Subtitles
0
No
0
1
Subtitles in active image area
1
0
Subtitles out of active image area
1
Reserved
Surround Sound
0
No
1
Yes
Copyright
0
No copyright asserted or unknown
1
Copyright asserted
Copy Protection
0
Copying not restricted
1
Copying restricted
ACTIVE
VIDEO
RUN-IN
SEQUENCE
START
CODE
500mV
11.0s
38.4s
42.5s
W0
W1
W2
W3
W4
W5
W6
W7
W8
W9
W10 W11 W12 W13
06399-
099
Figure 97. WSS Waveform Diagram
D
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