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參數(shù)資料
| 型號： | LA7615 |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | Single-Chip NTSC Color TV IC |
| 中文描述： | 單片集成電路NTSC制式彩電 |
| 文件頁數(shù)： | 33/39頁 |
| 文件大?。?/td> | 206K |
| 代理商： | LA7615 |
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No. 5841-33/39
LA7615
Continued from preceding page.
Parameter
Symbol
Test point
Input signal
Test procedure
Bus condition
Vertical S-curve correction @8
Vertical S-curve correction @0
Vertical S-curve correction @15
VScor8
VScor0
VScor15
SYNC IN:
horizontal and
vertical
synchronizing
signal
SYNC IN:
horizontal and
vertical
synchronizing
signal
SYNC IN:
horizontal and
vertical
synchronizing
signal
Monitor the pin 19 vertical ramp output and measure
the voltages at the 32nd line, the 52nd line, the
132nd line, the 152nd line, the 232nd line, and the
252nd line. Let Va, Vb, Vc, Vd, Ve, and Vf be these
measurements, and calculate the following formula.
VScor8 = 0.5[(Vb – Va) + (Vf – Ve)] / (Vd – Vc)
Monitor the pin 19 vertical ramp output and measure
the voltages at the 32nd line, the 52nd line, the
132nd line, the 152nd line, the 232nd line, and the
252nd line. Let Va, Vb, Vc, Vd, Ve, and Vf be these
measurements, and calculate the following formula.
VScor0 = 0.5[(Vb – Va) + (Vf – Ve)] / (Vd – Vc)
Monitor the pin 19 vertical ramp output and measure
the voltages at the 32nd line, the 52nd line, the
132nd line, the 152nd line, the 232nd line, and the
252nd line. Let Va, Vb, Vc, Vd, Ve, and Vf be these
measurements, and calculate the following formula.
VScor15 = 0.5[(Vb – Va) + (Vf – Ve)] / (Vd – Vc)
VS: 1000
VS: 1111
19
19
19
A10087
A10088
A10089
Continued on next page.
Vertical ramp output
252nd line
232nd line
152nd line
132nd line
52nd line
32nd line
Vertical ramp output
252nd line
232nd line
152nd line
132nd line
52nd line
32nd line
Vertical ramp output
252nd line
232nd line
152nd line
132nd line
52nd line
32nd line
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LA7620 | Color TV Video, Chroma, Deflection Circuit |
| LA7625 | Video, Chroma and Deflection Circuit for Color Television Sets |
| LA7629 | Color TV/Video,Chroma,Deflection Circuit |
| LA7640N | Chroma Circuit for SECAM-system Color Television Sets |
| LA7642N | SECAM Format Color TV Chrominance Circuit |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LA7620 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Color TV Video, Chroma, Deflection Circuit |
| LA7621 | 制造商:Panasonic Industrial Company 功能描述:IC |
| LA7625 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Video, Chroma and Deflection Circuit for Color Television Sets |
| LA7626 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Video, Chroma and Deflection Circuit for Color Television Sets |
| LA7629 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Color TV/Video,Chroma,Deflection Circuit |
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