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參數(shù)資料
| 型號： | LA76070 |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | NTSC Color Television IC |
| 中文描述： | NTSC制式彩色電視芯片 |
| 文件頁數(shù)： | 19/27頁 |
| 文件大?。?/td> | 308K |
| 代理商： | LA76070 |
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No. 5844-19/27
LA76070
Parameter
Symbol
Measurement
point
Input signal
Measurement procedure
Bus conditions and
input signals
[Video Block]
Overall video gain
(contrast: maximum)
Measure the output signal 50 IRE amplitude
(CNTHB V p-p) and calculate CONT127 as
20
×
log (CNTHB/0.357).
Measure the output signal 50 IRE amplitude
(CNTCB V p-p) and calculate CONT63 as
20
×
log (CNTCB/CNTHB).
Measure the output signal 50 IRE amplitude
(CNTLB V p-p) and calculate CONT0 as
20
×
log (CNTLB/CNTHB).
Contrast max
1111111
CONT127
L–50
Contrast adjustment
characteristics
(normal/maximum)
Contrast center
0111111
CONT63
L–50
Contrast adjustment
characteristics
(minimum/maximum)
Contrast min
0000000
CONT0
L–50
Video frequency characteristics
Brightness min
0000000
Contrast max
1111111
L–0
Measure the output signal 0 IRE DC level
(BRTPL V)
DC propagation
ClampG
Measure the output signal 0 IRE DC level
(DRVPH V) and the 100 IRE amplitude (DRVH
V p-p), and calculate ClampG as
100
×
(1 + (DRVPH - BRTPL)/DRVH).
Brightness min
0000000
Contrast max
1111111
L–100
Y delay
YDLY
Measure the output signal 0 IRE DC level at
point A when the black stretch function is
defeated (off). Record this value as BKST1 (V).
BKST defeat on (1)
Maximum black stretching gain
BKSTmax
L–BK
Measure the output signal 0 IRE DC level at
point A when the black stretch is enabled (on).
Record this value as BKST2 (V).
BKST defeat off (0)
Calculate BKSTmax from the following formula.
BKSTmax = 2
×
50
×
(BKST1 – BKST2)/ CNTHB
L–CW
Sharpness (peaking)
L–CW
L–CW
Horizontal/vertical blanking
output level
RGB
BLK
L–100
Measure the output signal blanking period DC
level. Record that value as RGB
BLK
V.
30
30
30
30
30
30
30
30
30
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PDF描述 |
|---|---|
| LA76075 | NTSC Color Television Sets |
| LA7615 | Single-Chip NTSC Color TV IC |
| LA7620 | Color TV Video, Chroma, Deflection Circuit |
| LA7625 | Video, Chroma and Deflection Circuit for Color Television Sets |
| LA7629 | Color TV/Video,Chroma,Deflection Circuit |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LA76075 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:NTSC Color Television Sets |
| LA7612A | 制造商:SANYO Semiconductor Co Ltd 功能描述: |
| LA7615 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Single-Chip NTSC Color TV IC |
| 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 |
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