ADV7312KST Analog Devices Inc, ADV7312KST Datasheet - Page 61

• Manufacturer Part Number: ADV7312KST
• Manufacturer: Analog Devices Inc

Specifications of ADV7312KST

• Number Of Dac's: 6
• Adc/dac Resolution: 11b
• Screening Level: Commercial
• Package Type: LQFP
• Pin Count: 64
• Lead Free Status / RoHS Status: Not Compliant

APPENDIX 2—SD WIDE SCREEN SIGNALING
[Subaddress 59h, 5Ah, 5Bh]
The ADV7312 support wide screen signaling (WSS) conforming
to the 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, and the function of each of
these bits is shown in Table XIX. The WSS data is preceded by
Bit
Bit 0–Bit 2
Bit 3
B0, B1, B2, B3 Aspect Ratio
0
1
0
1
0
1
0
1
1
B4
0
1
REV. 0
500mV
0
0
1
1
0
0
1
1
1
0
0
0
0
1
1
1
1
1
11.0 s
1
0
0
1
0
1
1
0
0
Description
Aspect Ratio/Format/Position
Odd Parity Check of Bit 0 to Bit 2
4:3
14:9
14:9
16:9
16:9
>16:9
14:9
16:9
16:9
Camera Mode
Film Mode
SEQUENCE
RUN-IN
Format
Full Format
Letterbox
Letterbox
Letterbox
Letterbox
Letterbox
Full Format
N/A
START
CODE
42.5 s
38.4 s
W0
Figure 65. WSS Waveform Diagram
Table XIX. Function of WSS Bits
W1
Position
N/A
Center
Top
Center
Top
Center
Center
N/A
W2
W3
W4
–61–
W5
a run-in sequence and a start code; see Figure 65. If SD WSS
[Address 59h, Bit 7] 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.
It is possible to blank the WSS portion of Line 23 with
Subaddress 61h, Bit 7.
Bit
B5
0
1
B6
0
1
B7
B9 B10
0
1
0
1
B11
0
1
B12
B13
W6
0
0
1
1
W7
W8
Description
Standard Coding
Motion Adaptive Color Plus
No Helper
Modulated Helper
Reserved
No Open Subtitles
Subtitles in Active Image Area
Subtitles out of Active Image Area
Reserved
No Surround Sound Information
Surround Sound Mode
Reserved
Reserved
W9
W10 W11
W12
W13
ADV7312
ACTIVE
VIDEO