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參數資料
| 型號： | LC74785 |
| 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： | 8/24頁 |
| 文件大小： | 266K |
| 代理商： | LC74785 |
No. 5520-16/24
LC74785, LC74785M
COMMAND6 (Synchronizing signal detection setup command)
First byte
DA
Register
Contents
Notes
0 to 7
State
Function
7
—
1
6
—
1
5
—
1
4
—
0
3
SEL0
0
Sync separator signal
Switches the SEPOUT (pin 19) output.
1
Output signal set by MOD0
2
MOD0
0
High-level output
Only valid when SEL0 is high.
1
ST pulse signal
1
DISLIN
0
12 lines
Switches the number of lines displayed.
1
10 lines
0
MUT
0
Normal output
CVOUT switching
1
CVIN is cut and CVOUT is held at the pedestal level.
Command 6 identification code
Sets up synchronizing signal control.
Second byte
Note: All registers are set to 0 when the LC74785/M is reset by the RST pin.
DA
Register
Contents
Notes
0 to 7
State
Function
7
—
0
Second byte identification bit
6
RN2
0
1
5
RN1
0
1
4
RN0
0
1
3
SN3
0
1
2
SN2
0
1
SN1
0
1
0
SN0
0
1
External synchronizing signal detection control
Signal absent
→ signal present transition
detection
Sets the sampling period in which SYNC can
be detected continuously in the horizontal
synchronizing signal period (1H).
External synchronizing signal detection control
Signal present
→ signal absent transition
detection
Sets the sampling period in which SYNC
cannot be detected continuously in the
horizontal synchronizing signal period (1H).
RN2
RN1
RN0
Number of times HSYNC detected
0
0 times
0
1
4 times
0
1
0
8 times
1
0
16 times
SN3
SN2
SN1
SN0
Number of times HSYNC detected
0
Not detected
0
1
32 times
0
1
0
64 times
0
1
0
128 times
1
0
256 times
相關PDF資料 |
PDF描述 |
|---|---|
| LC74785M | ON-SCREEN DISPLAY IC, PDSO24 |
| LC74786 | ON-SCREEN DISPLAY IC, PDIP24 |
| LC74786 | ON-SCREEN DISPLAY IC, PDIP24 |
| LC74786M | ON-SCREEN DISPLAY IC, PDSO24 |
| LC74786M | ON-SCREEN DISPLAY IC, PDSO24 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| LC74785M | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:On-Screen Display Controller LSI |
| LC74786 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:On-Screen Display Controller |
| LC74786-9606-E | 制造商:ON Semiconductor 功能描述:ON-SCREEN DISPLAY CONTROL - Ammo Pack |
| LC74786JM | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:On-Screen Display Controller |
| LC74786M | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:On-Screen Display Controller |
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