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參數資料
型號: LC74402
元件分類: 畫面疊加
英文描述: PICTURE-IN-PICTURE IC, PDIP64
封裝: SDIP-64
文件頁數: 17/19頁
文件大小: 352K
代理商: LC74402
Sub-screen Size
The vertical and horizontal directions are controlled independently.
1. Vertical size
1/3 to (3) scan lines are compressed to a single scan line
1/4 to (4) scan lines are compressed to a single scan line
2. Horizontal size
1/3 to A/D clock: D/A clock = 1:3
1/6 to A/D clock: D/A clock = 1:6
The data required for 1/6 reduction is one half that for 1/3 reduction.
Aspect correction function
The horizontal direction size is adjusted by changing the VCO oscillator frequency (system clock).
This can be adjusted from –30% to +30%.
However, care is required when using this function. See the Application Manual for details.
2E mode
If 2E mode is used when 1/3 size is selected, the horizontal direction is expanded by a factor of two.
This is normally used only for special functions such as split mode.
Number of Sub-screens
Between one and eight sub-screens can be specified (when 1 Mb of VRAM is used).
Split mode
Refer to the Application Manual for details on using these modes.
No. 4872-7/19
LC74401E, 74402, 74402E
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相關代理商/技術參數
參數描述
LC74402E 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:PIP Controllers
LC74403E 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Peripheral IC
LC7441 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Picture-in-picture Controller for TVs and VCRs
LC74411 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:PIP Controller
LC74411N 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:PIP Controller
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