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參數資料
| 型號： | LC74783 |
| 廠商： | SANYO SEMICONDUCTOR CO LTD |
| 元件分類： | 畫面疊加 |
| 英文描述： | ON-SCREEN DISPLAY IC, PDIP24 |
| 封裝： | SDIP-24 |
| 文件頁數： | 4/15頁 |
| 文件大小： | 181K |
| 代理商： | LC74783 |
Second byte
Note: The register states are all set to zero when the LC74783/M is reset with the RST pin.
~ COMMAND6 (Synchronization signal detection setup command)
First byte
Register content
DA0 to DA7
Register name
State
Function
Note
7
—
0
Second byte identification bit
6
—
0
5
HLFINT
0
Normal mode
1
Half internal synchronization mode
4
BCL
0
Background color present
1
No background color (only the background level is set)
Only valid with internal synchronization.
3
CB
0
Outputs a color burst signal.
Only valid when BCL is high.
1
Stops color burst signal output.
0
2
PH2
1
0
1
PH1
1
0
PH0
1
No. 4990-12/15
LC74783, 74783M
Phase 2
Phase 1
Phase 0
Background color (phase)
NTSC
PAL
0
π/2*
±
π/2
0
1
In phase*
In phase
0
1
0
3
π/2*
π/2
0
1
π*
±
π
1
0
3
π/4
±3
π/4
1
0
1
π/4
±
π/4
1
0
7
π/4
1
5
π/4
3
π/4
–
+
–
+
–
+
Register content
DA0 to DA7
Register name
State
Function
Note
7
—
1
6
—
1
Command 6 identification code
5
—
1
Synchronization signal control settings
4
—
0
3
MOD1
0
Sync separator circuit signal
Switches the SEPOUT (pin 19) output
1
High level output during internal synchronization
0
Pin 5: Blank signal
2
MOD0
Pin 8: Character signal
Switches the BLANK (pin 5) and CHARA
1
Pin 5: Composite synchronization signal
(pin 8) outputs
Pin 8: External synchronization signal discrimination output signal
1
DISLIN
0
12 lines
Switches the number of display lines.
1
10 lines
0
MUT
0
Normal output
Switches CVOUT
1
CVIN is cut and CVOUT is fixed at the pedestal level.
Sample background color phase
diagram for PAL mode color burst
*: When 2fsc NTSC is used
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| LC74784M | ON-SCREEN DISPLAY IC, PDSO24 |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| LC74783M | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:On-screen Display Controller LSI for VCR Products |
| LC74783M-9014-E | 制造商:ON Semiconductor 功能描述:ON-SCREEN DISPLAY CONTROL - Ammo Pack |
| LC74784 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:On-screen Display Controller LSI for VCR Products |
| LC74784M | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:On-screen Display Controller LSI for VCR Products |
| LC74785 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:On-Screen Display Controller LSI |
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