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參數(shù)資料
| 型號： | AN5693 |
| 廠商： | Panasonic Corporation |
| 英文描述： | Luminance,Chroma and Sync. Signals Processing ICwith Built-in I2Cbus Interfacefor PAL/NTSC Color-TV |
| 中文描述： | 亮度，色度和同步。信號處理ICwith內(nèi)置I2Cbus Interfacefor PAL / NTSC制式彩色電視 |
| 文件頁數(shù)： | 32/34頁 |
| 文件大小： | 325K |
| 代理商： | AN5693 |
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32
AN5693K
ICs for TV
I
Technical Data (continued)
Outline of major blocks (continued)
I
2
C Bus Control Contents
1. For the Control information, for all sub-address, when data goes up, output increases.
(Example : Contrast 00
→
contrast min., 7F
→
contrast max., Brightness 00
→
pedestal low, FF
→
pedestal high)
2. Other control supplementary
(1) 00 : Color
When Color data is 00, chroma output is completely cutoff so that color is off.
(2) 01 : Tint
When tint data is 00, the skin color approaches red.When tint data is 7F, the skin color approaches green.
(3) 05, 06, 07(8-bit)and 0ED4, 0ED5(1-bit) : cutoff R, G, B
The cutoff controllable range has increased resolution with 1 extra bit and is segmented into 2 sub-section,
each section is variable by 8-bit DAC.
(Cutoff G is 1 section of 8-bit DAC, that has the same variable range as R, B)
Example : Case of R cutoff
Output
overlap by about1/8
G cutoff
R cutoff
0E-D4 : 0
05 : 00
1
FF00
FF
(4) 08, 09 : Drive R, B
8-bit DAC 1 section(no switching of sub-section).
(5) 0A : Video Adjust
Data 0*
→
composite video min. F*
→
composite video max. This control is used to adjust the composite
video level.
(6) 0A : Horizontal Centre
Data *0
→
picture moves left. *F
→
picture moves right.
(7) 0B : External DAC2 and 04 D7
External DAC2 has 8-bits DAC of 2 sections adjustment.
Data 01
→
DC voltage shifts down.
Data FF
→
DC voltage shifts up.
(8) 0C : External DAC1
Data 00
→
DC voltage shifts down.
Data 7F
→
DC voltage shifts up.
(9) 0D : External DAC3
Data 00
→
DC voltage shifts down.
Data 7F
→
DC voltage shifts up.
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