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參數(shù)資料
| 型號： | LC74401E |
| 元件分類： | 畫面疊加 |
| 英文描述： | PICTURE-IN-PICTURE IC, PQFP80 |
| 封裝： | QFP-80 |
| 文件頁數(shù)： | 9/19頁 |
| 文件大?。?/td> | 352K |
| 代理商： | LC74401E |
2. Field determination circuit
Since the field is determined by the phase difference between the falling edges of the V and H signals, these signals
must be input with the timing shown in the figure.
Here, a and b must be: a = 0.02 to 0.40 H, b = 0.60 to 0.98 H.
The synchronization signal pulse widths are: tWV > 1 s, tWH > 1 s.
Clamping Pulses
1. A/D converter clamping
Since clamping pulses are output with the timing shown in the figure, they must set to fall in the pedestal range. On a
reset or during standby mode, the H-S input signal becomes a positive polarity signal, and is output as such.
Note: Here, t3 and t4 must be: t3 > 0 s, t4 > 0.5 s.
2. D/A converter clamping
The digital data for the regions A is as follows:
Y D/A converter input:
000000
R-Y D/A converter input: 100000
B-Y D/A converter input: 100000
Clamping is applied on the main screen horizontal synchronization signal.
No. 4872-17/19
LC74401E, 74402, 74402E
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相關代理商/技術參數(shù) |
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|---|---|
| LC74402 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:PIP Controllers |
| 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 |
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