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參數(shù)資料
| 型號(hào)： | LC74789 |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | On-Screen Display Controller(屏幕顯示控制器) |
| 中文描述： | 屏幕顯示控制器（屏幕顯示控制器） |
| 文件頁(yè)數(shù)： | 3/23頁(yè) |
| 文件大?。?/td> | 209K |
| 代理商： | LC74789 |
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No. 5732-3/23
LC74789, 74789M, 74789JM
Continued from preceding page.
Pin No.
Pin Name
Function
Notes
13
CV
OUT
V
SS
2
CV
IN
CV
CR
V
DD
1
Video signal output
Composite video signal output
14
Ground
Ground connection (analog system ground)
15
Video signal input
Composite video signal input
16
Video signal input
SECAM chrominance signal input
17
Power supply
Power supply (+5 V: digital system power supply)
Video signal input to the internal sync separator circuit (Used as either the horizontal
synchronizing signal or the composite synchronizing signal input when the internal sync
separator circuit is not used.)
18
SYN
IN
Sync separator circuit input
19
SEPC
Sync separator circuit bias
voltage
Internal sync separator circuit bias voltage monitor
20
SEP
OUT
Composite synchronizing
signal output
Internal sync separator circuit composite synchronizing signal output. Can be switched to
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 SEP
OUT
pin output signal.
An integration circuit must be connected to the SEP
OUT
pin. This pin must be tied to V
DD
1 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.
21
SEP
IN
Vertical synchronizing signal input
22
CDLR
Background color phase
adjustment
Background color phase adjustment. Connect a resistor between this pin and ground.
23
RST
Reset input
System reset input.
A pull-up resistor is built in and the input has hysteresis characteristics.
24
V
DD
1
Power supply (+5 V)
Power supply (+5 V: digital system power supply)
Note: Both V
DD
1 pins must be connected to the power supply.
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| LC74789-9810-E | 制造商:ON Semiconductor 功能描述:ON-SCREEN DISPLAY CONTROL - Ammo Pack 制造商:ON Semiconductor 功能描述:FNFLD / ON-SCREEN DISPLAY CONTROL |
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| LC74789M | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:On-Screen Display Controller |
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