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參數(shù)資料
| 型號： | LC74793JM |
| 廠商： | SANYO SEMICONDUCTOR CO LTD |
| 元件分類： | 消費(fèi)家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PDSO24 |
| 封裝： | MFP-24 |
| 文件頁數(shù)： | 4/24頁 |
| 文件大小： | 154K |
| 代理商： | LC74793JM |
No. 5966-12/24
LC74793, 74793JM
Command 4 (Synchronizing signal detection command 2)
First byte
DA 0 to 7
Register
Contents
Notes
Status
Function
7
—
1
First byte identification bit
6
—
1
Command 4 identification code.
5
—
1
Synchronizing signal detection settings 2.
4
—
1
3
—
0
2
—
1
—
0
—
0
Second byte
DA 0 to 7
Register
Contents
Notes
Status
Function
7
—
0
Second byte identification bit
6
—
0
5
RNE0
0
Synchronization signal discrimination absent
→ preset: Normal values
1
Synchronization signal discrimination absent
→ preset: Values in parentheses
4
SJNS3
0
1
3
SJNS1
0
1
2
SJNS1
0
1
SJCS1
0
1
0
SJCS0
0
1
SJNS3
SJNS2
SJNS1
Count
0
None
0
1
4
0
1
0
8
0
1
16
1
0
32
1
0
1
64
1
0
128
1
256
SJCS1
SJCS0
PAL
NTSC
0
677 ns (1/3)
448 ns (1/2)
0
1
903 ns (1/4)
838 ns (1/3)
1
0
450 ns (1/2)
1117 ns (1/4)
Changes the values used for
synchronizing signal discrimination in
the absent
→ preset direction (COM3).
Setting for the noise exclusion circuit
used for synchronizing signal
discrimination in the absent
→ preset
direction.
If the number of H signal inputs during
a 1H period is greater than or equal to
the value listed in the table, the IC
determines that the signal is absent.
Synchronization discrimination.
HSYNI signal switching clock
selection.
Note: All registers are cleared to 0 when the IC is reset by the RST pin.
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| LC74793 | SPECIALTY CONSUMER CIRCUIT, PDIP24 |
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| LC74795 | 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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