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參數資料
| 型號： | LC74787 |
| 元件分類： | 畫面疊加 |
| 英文描述： | ON-SCREEN DISPLAY IC, PDIP24 |
| 封裝： | 0.300 INCH, PLASTIC, SDIP-24 |
| 文件頁數： | 17/23頁 |
| 文件大小： | 215K |
| 代理商： | LC74787 |
No. 5730-3/23
LC74787, 74787M, 74787JM
Continued from preceding page.
Pin No.
Pin Name
Function
Notes
13
CVOUT
Video signal output
Composite video signal output
14
VSS2
Ground
Ground connection (analog system ground)
15
CVIN
Video signal input
Composite video signal input
16
VDD1
Power supply
Power supply (+5 V: digital system power supply)
Video signal input to the internal sync separator circuit (Used as either the horizontal
17
SYNIN
Sync separator circuit input
synchronizing signal or the composite synchronizing signal input when the internal sync
separator circuit is not used.)
18
SEPC
Sync separator circuit bias
Internal sync separator circuit bias voltage monitor
voltage
19
SEPOUT
Composite synchronizing
Internal sync separator circuit composite synchronizing signal output. Can be switched to
signal output
function as a signal (high, low, or ST. pulse) output by the SEL0 and MOD0 setting.
Inputs the vertical synchronizing signal created by integrating the SEPOUT pin output signal.
20
SEPIN
Vertical synchronizing signal input
An integration circuit must be connected to the SEPOUT pin. This pin must be tied to VDD1 if
unused. This pin can be switched to function as the frame signal input mode by setting SEL1
high. This is valid when CTL3 is set high. This input has hysteresis characteristics.
Pin settings take priority for switching between the NTSC, PAL, PAL-M, PAL-N, NTSC 4.43,
21
CTRL2
NTSC/PAL-M selection input
and PAL60 video formats. The NTSC format is selected when this pin is low after a reset.
The command video format (NTSC, PAL, PAL-M, PAL-N, NTSC 4.43, or PAL60) selection is
valid. The PAL-M format is selected when this pin is high.
22
CDLR
Background color phase
Background color phase adjustment. Connect a resistor between this pin and ground.
adjustment
23
RST
Reset input
System reset input.
A pull-up resistor is built in and the input has hysteresis characteristics.
24
VDD1
Power supply (+5 V)
Power supply (+5 V: digital system power supply)
Note: Both VDD1 pins must be connected to the power supply.
相關PDF資料 |
PDF描述 |
|---|---|
| LC74787JM | ON-SCREEN DISPLAY IC, PDSO24 |
| LC74787M | ON-SCREEN DISPLAY IC, PDSO24 |
| LC74787 | ON-SCREEN DISPLAY IC, PDIP24 |
| LC74788 | ON-SCREEN DISPLAY IC, PDIP24 |
| LC74788 | ON-SCREEN DISPLAY IC, PDIP24 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| LC74787JM | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:On-Screen Display Controller |
| LC74787JM-9607-E | 制造商:SANYO Semiconductor Co Ltd 功能描述: |
| LC74787M | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:On-Screen Display Controller |
| LC74788 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:On-Screen Display Controller |
| LC74788JM | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:On-Screen Display Controller |
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