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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)： | 20/39頁 |
| 文件大小： | 206K |
| 代理商： | LA7615 |
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No. 5841-20/39
LA7615
(Test Conditions)
Parameter
Symbol
Test point
Input signal
Test procedure
Bus bits/input signal
[Video Block]
Overall video gain (at maximum
contrast)
Contrast adjustment
characteristics (normal/max)
Contrast adjustment
characteristics (normal/max)
Video frequency characteristics
f0 = 1 (sharp 0)
f0 = 3 (sharp 15)
Chrominance trap level
f0 = 0 (sharp 0)
DC restoration
Luminance delay f0 = 1
Maximum black stretch gain
Black stretch threshold
black(40 IRE
black)
Sharpness (peaking) variability
characteristics
(normal)
(maximum)
(minimum)
Horizontal/vertical blanking
output level
CONT63
CONT32
CONT0
Yf03
Ctrap
ClampG
Y
DLY
BKSTmax
BKST
TH
Sharp16
Sharp31
Sharp0
RGB
BLK
L-50
L-50
L-50
L-CW
L-CW
L-0
L-100
L-50
L-BK
L-40
L-CW
L-CW
L-CW
L-100
Measure the output signal 50 IRE amplitude (CNT
HB
Vp-p) and calculate CONT63 = 20log(CNT
HB
/0.357).
Measure the output signal 50 IRE amplitude (CNT
CB
Vp-p) and calculate CONT32 = 20log(CNT
CB
/0.357).
Measure the output signal 50 IRE amplitude (CNT
LB
Vp-p) and calculate CONT0 = 20log(CNT
LB
/0.357).
With the input signal CW = 100 kHz, measure the
amplitude of the CW signal in the output signal
(PEAK
DC
Vp-p).
With the input signal CW = 10 MHz, measure the
amplitude of the CW signal in the output signal
(F03 Vp-p).
Calculate Yf3 = 20log(F03/PEAK
DC
).
With the input signal CW = 3.58 MHz, measure the
amplitude of the CW signal in the output signal
(F00 Vpp).
Calculate Ctrap = 20·log(F00/PEAK
DC
).
Measure the output signal 0 IRE DC level
(BRTPL (V)).
Measure the output signal 0 IRE DC level (DRVPH
(V)) and the 100 IRE amplitude (DRV
H
Vpp).
Calculate
ClampG = 100
×
(1 + (DRVP
H
– BRTPL)/DRV
H
)).
Measure the time difference (amount of delay)
between the rise of the input signal 50 IRE
amplitude, and rise of the output signal 50 IRE
amplitude.
Measure the 0 IRE DC level at point A in the output
signal when the black stretch function is defeated
(black stretch off). (BKST1 (V))
Measure the 0 IRE DC level at point A in the output
signal when the black stretch function is on.
(BKST2 (V))
Calculate
BKSTmax = 2
×
50
×
(BKST1 – BKST2)/CNT
HB
.
Measure the 40 IRE DC level in the output signal
when the black stretch function is on. (BKST3 (V))
Measure the 40 IRE DC level in the output signal
when the black stretch function is defeated
(black stretch off). (BKST4 (V))
Calculate
BKST
TH
= 50
×
(BKST4 – BKST3)/CNT
HB
.
With the input signal CW = 2.2 MHz, measure the
amplitude of the CW signal in the output signal
(F00S16 Vp-p).
Calculate Sharp16 = 20log(F00S16/PEAK
DC
).
With the input signal CW = 2.2 MHz, measure the
amplitude of the CW signal in the output signal
(F00S31 Vp-p).
Calculate Sharp31 = 20log(F00S31/PEAK
DC
).
With the input signal CW = 2.2 MHz, measure the
amplitude of the CW signal in the output signal
(F00S0 Vp-p).
Calculate Sharp0 = 20log(F00S0/PEAK
DC
).
Measure the DC level of the output signal during the
blanking period (RGB
BLK
(V)).
TR24: Contrast
111111
TR24: Contrast
000000
TR26: F0 Adjust 01
TR26: F0 Adjust 11
TR25: Sharpness
01111
TR26: F0 Adjust 00
TR23: Brightness
000000
TR24: Contrast
111111
TR23: Brightness
000000
TR24: Contrast
111111
TR31: BKST Defeat
1
TR31: BKST Defeat
0
TR31: BKST Defeat
0
TR31: BKST Defeat
1
TR26: F0 Adjust 00
TR25: Sharpness
10000
TR25: Sharpness
11111
TR25: Sharpness
00000
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Continued on next page.
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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