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參數(shù)資料
| 型號： | LC7454A |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | CMOS Data Slicer(CMOS 數(shù)據(jù)切波器) |
| 中文描述： | CMOS數(shù)據(jù)切片（的CMOS數(shù)據(jù)切波器） |
| 文件頁數(shù)： | 11/16頁 |
| 文件大?。?/td> | 696K |
| 代理商： | LC7454A |
LC7454A/M
11/16
<Data format>
The LC7454 can extract the Index Plus + format data.
If the line contains the 1x format data, the first 15 bits of the 32 bit data buffer are filled with ‘0’ and 16th bit becomes ‘1’.
The extracted data is stored is stored form 16th to 31st bit.
32 bit data output buffer
32 bit data output buffer
Five 32 bit data buffer are provided to store maximum of 5 line data in a field. If the data with correct format exists in the
selected lines, the extracted data are stored into the buffers by the order of line number. If correct data is not found on the
selected line, the data buffer is filled with ‘0’. All five data buffers are cleared by the line 10 sensing signal in the next field.
Therefore, the data have to be read out between LN26 and the line 10 of the next field.
Please read only the selected buffers. For example, if three lines are selected, read the first three 32 bit buffers only.
p2
b6
b5
b4
b3
b2
b1
b0
p1
b6
b4
b3
b2
b1
b0
b5
Data Byte 1
b0
p4
b6
b5
b4
b3p
b2
b1
b0
p3
b4
b3
b2
b1
b0
b0
b1
b2
b3
b4
b5
b6
p1
b0
b1
b2
b3
b4
b5
b6
p2
b5
Data Byte 2
b0
b1
b2
b3
b4
b5
b6
MSB
b31
b0
Output
direction
LSB
2x data format
Data Byte 3
b0
b1
b2
b3
b4
b5
b6
b0
b1
b2
b3
b4
b5
b6
Data Byte 4
Data Byte 1
p2
b31
b6
b5
b4
b3
b2
b1
b0
p1
b6
b4
b3
b2
b1
b0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
b5
Data Byte 2
MSB
b0
Fixed to ‘0000000000000001’, if 1x data is received
Output
direction
LSB
1x data format
b1
b2
b3
b4
b5
b6
p1
p2
p3
p4
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| LC7455A | Closed Caption Signal Extraction IC(從重疊視頻信號中提取接近字符信號的芯片) |
| LC7455 | Closed Caption Signal Extraction IC |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LC7454M | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:CMOS Data Slicer |
| LC7455 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Closed Caption Signal Extraction IC |
| LC7455A | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Closed Caption Signal Extraction IC |
| LC7455M | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Closed Caption Signal Extraction IC |
| LC7456A | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:U.S. Closed Caption Signal Extraction IC |
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