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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)： | 25/39頁 |
| 文件大?。?/td> | 206K |
| 代理商： | LA7615 |
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No. 5841-25/39
LA7615
(Test Conditions)
Parameter
Symbol
Test point
Input signal
Test procedure
Bus condition
[Chrominance Block]
ACC amplitude characteristics 1
ACC amplitude characteristics 2
B-Y/Y amplitude ratio
Color control characteristics 1
Color control characteristics 2
Color control sensitivity
Tint center
Tint control (max)
Tint control (min)
Tint control sensitivity
Demodulation output ratio
B-Y/R-Y
Demodulation output ratio
G-Y/R-Y
ACC
M
1
ACC
M
2
CLR
BY
CLR
MN
CLR
MM
CLR
SE
TIN
CEN
TIN
MAX
TIN
MIN
TIN
SE
BR
GR
Bout
Bout
C-1
0 dB
+6 dB
C-1
–14 dB
Y
IN
: L77
C-1: No signal
C-2
C-3
C-3
C-3
C-1
C-1
C-1
C-1
C-3
C-3
Measure the output amplitude when the
chrominance input is set to 0 dB and the output
amplitude when the input is reduced by – 6 dB, and
calculate the ratio.
ACC
M
1 = 20log(+6 dB data/0 dB data)
Measure the output amplitude when the
chrominance input is set to –14 dB and calculate the
ratio.
ACC
M
2 = 20log(–14 dB data/0 dB data)
Measure the luminance (Y) output level(V1).
Next, apply a signal to the C
IN
input (with only a sync
applied to the Y input) and measure the output level
(V2). Calculate the following formula.
CLR
BY
= 100
×
(V2/V1) +15%
Measure V1: the output amplitude when the color
control is maximum, and V2: the output amplitude
when the color control is normal (Color control:
1000000) and calculate CLR
MN
= V1/V2.
Measure V3: the output amplitude when the color
control is minimum and calculate CLR
MM
=
20·log(V1/V3).
Measure V4: the output amplitude when the color
control is 90, and V5: the output amplitude when the
color control is 38. Calculate the following formula.
CLR
SE
= 100
×
(V4 – V5) / (V2
×
52)
Measure each section of the output waveform and
calculate the angle of the B-Y axis.
Measure each section of the output waveform and
calculate the angle of the B-Y axis. Calculate the
following formula.
TIN
MAX
= (the B-Y axis angle) – TIN
CEN
Measure each section of the output waveform and
calculate the angle of the B-Y axis. Calculate the
following formula.
TIN
MIN
= (the B-Y axis angle) – TIN
CEN
Measure A1: the angle when the tint control is 85,
and A2: the angle when the tint control is 42.
Calculate the following formula.
TIN
SE
= (A1 – A2)/43
Measure Vb: the B
OUT
output amplitude and Vr: the
R
OUT
output amplitude, and calculate BR = Vb/Vr.
Measure Vg: the G
OUT
output amplitude and
calculate GR = Vg/Vr.
TR28: Color Control
1111111
1000000
TR28: Color Control
0000000
TR28: Color Control
1011010
Color Ctontrol
0100110
TR27: TINT
0111111
TR27: TINT
1111111
TR27: TINT
0000000
TR27: TINT
1010101
0101010
TR28: Color Control
1000000
TR28: Color Control
1000000
38
38
38
38
38
38
38
38
38
38
38
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37
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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