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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)： | 8/19頁 |
| 文件大?。?/td> | 352K |
| 代理商： | LC74401E |
Initialization
1. RES pin: Reset
The RES pin must be set low when power is first applied.
2. Internal control registers
These LSIs go to the standby state (SBY = high) after a reset. When developing microprocessor software, be sure to
send data to all registers. Also be sure to send zero data to the zero registers at addresses 14H and 15H.
I2C Control
Data format
Data 1 is stored at register address A1. For data 2, A1 is incremented and data 2 is stored at A1 + 1.
Slave Address
Synchronization Signal Input
1. Sync separator
The LC74401E requires sync separated (including AFC processing) V and H signals for both the main and sub-
screens. Since V is used for frame determination and H is used as the PLL reference signal, these signals must be
input reliably.
The standard values are set up assuming that the H-M and H-S inputs are delayed about 1 s from the video signal
horizontal synchronization signal.
Equalizing pulses must be removed.
Since noise in the synchronization signal will disrupt the screen image, care must be used in the layout of these lines.
We recommend turning off sub-screen display when the synchronization signals are unstable, since such instability
can disrupt the sub-screen image.
No. 4872-16/19
LC74401E, 74402, 74402E
A6
A5
A4
A3
A2
A1
A0
R/W
0
1
0
1
相關PDF資料 |
PDF描述 |
|---|---|
| LC74402 | PICTURE-IN-PICTURE IC, PDIP64 |
| LC74402E | PICTURE-IN-PICTURE IC, PQFP64 |
| LC7440 | PICTURE-IN-PICTURE IC, PDIP64 |
| LC74411NE | PICTURE-IN-PICTURE IC, PQFP64 |
| LC74411N | PICTURE-IN-PICTURE IC, PDIP64 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| 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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