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參數資料
| 型號： | LA76818A |
| 元件分類： | 接收器 |
| 英文描述： | AM/FM, AUDIO/VIDEO DEMODULATOR, PDIP54 |
| 封裝： | 0.600 INCH, DIP-54 |
| 文件頁數： | 34/44頁 |
| 文件大小： | 289K |
| 代理商： | LA76818A |
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LA76818A
No.8047-4/44
Continued from preceding page.
Ratings
Parameter
Symbol
Conditions
min
typ
max
Unit
Max
BKSTmax
Gain = 10, Start = 01
27.0
32.0
37.0
IRE
Mid
BKSTmid
Gain = 01, Start = 01
19.0
24.0
29.0
IRE
Black stretch
gain
Min
BKSTmin
Gain = 00, Start = 01
9.0
14.0
19.0
IRE
Max
(60IRE
V)
BKSTTHmax
Bain = 01, Start = 10
-5.0
0.0
5.0
IRE
Mid
(50IRE
V)
BKSTTHmid
Bain = 01, Start = 01
-5.0
0.0
5.0
IRE
Black stretch
start point
Min
(40IRE
V)
BKSTTHmin
Bain = 01, Start = 00
-5.0
0.0
5.0
IRE
Trap 1 mid
Sharp31T1
F = 2.2MHz, FILTER SYS = 0000
5.0
8.0
11.0
dB
Trap 1 max
Sharp63T1
F = 2.2MHz, FILTER SYS = 0000
9.0
12.0
15.0
dB
Sharpness
variability range
NTSC
Trap 1 min
Sharp0T1
F = 2.2MHz, FILTER SYS = 0000
-5.0
-2.0
1.0
dB
Trap 2 mid
Sharp32T2
F = 2.7MHz, FILTER SYS = 0010
5.0
8.0
11.0
dB
Trap 2 max
Sharp63T2
F = 2.7MHz, FILTER SYS = 0010
8.5
11.5
13.5
dB
Sharpness
variability range
PAL
Trap 2 min
Sharp0T2
F = 2.7MHz, FILTER SYS = 0010
-6.5
-3.5
-0.5
dB
Trap 3 mid
Sharp32T3
F = 2.3MHz, FILTER SYS = 1000
5.0
8.0
11.0
dB
Trap 3 max
Sharp63T3
F = 2.3MHz, FILTER SYS = 1000
8.5
11.5
13.5
dB
Sharpness
variability range
SECAM
Trap 3 min
Sharp0T3
F = 2.3MHz, FILTER SYS = 1000
-6.5
-3.5
-0.5
dB
Trap 4 mid
Sharp32T4
F = 3.0MHz, FILTER SYS = 0100
5.0
8.0
11.0
dB
Trap 4 max
Sharp63T4
F = 3.0MHz, FILTER SYS = 0100
8.5
11.5
13.5
dB
Sharpness variability
range 6MHz TRAP
Trap 4 min
Sharp0T4
F = 3.0MHz, FILTER SYS = 0100
-6.5
-3.5
-0.5
dB
Trap 5 mid
Sharp32T5
F = 3.0MHz, FILTER SYS = 0000 Y APF = 1
5.0
8.0
11.0
dB
Trap 5 max
Sharp63T5
F = 3.0MHz, FILTER SYS = 0000 Y APF = 1
8.5
11.5
13.5
dB
Sharpness
variability range
APF
Trap 5 min
Sharp0T5
F = 3.0MHz, FILTER SYS = 0000 Y APF = 1
-6.5
-3.5
-0.5
dB
1
WPL1
APL = 100% WPL = 00
160.0
170.0
180.0
IRE
2
WPL2
APL = 100% WPL = 01
130.0
140.0
150.0
IRE
3
WPL3
APL = 100% WPL = 10
100.0
110.0
IRE
White peak
limiter effective
point
4
WPL4
APL = 100% WPL = 11
70.0
80.0
90.0
IRE
1
YG1
YGAMMA = 01
89.0
93.0
97.0
%
2
YG2
YGAMMA = 10
85.0
89.0
93.0
%
Y gamma
effective point
3
YG3
YGAMMA = 11
80.0
84.0
88.0
%
Gray Mode Level
GRAY
GLAY MODE = 1, CROSS B/W = 2
12.5
16.0
19.5
IRE
Horizontal/vertical blanking
output level
RGBBLK
0.1
0.4
0.7
V
1
PreShoot1
Pre-shoot adj. = 00
0.92
0.97
1.02
Pre-shoot adjust
2
PreShoot2
Pre-shoot adj. = 11
1.08
1.13
1.18
Over-shoot adjust
OverShoot
Over-shoot adj. = 11
1.08
1.13
1.18
OSD block
OSD Fast SW threshold
FSTH
0.7
0.9
1.1
V
Red RGB output level
ROSDH
120
165
200
IRE
Green RGB output level
GOSDH
70
120
140
IRE
Blue RGB output level
BOSDH
85
120
155
IRE
Gain match
RRGB
1.12
1.4
1.68
Ratio
Analog OSD R
output level
Linearity
LRRGB
45
50
60
%
Gain match
GRGB
0.8
1
1.2
Ratio
Analog OSD G
output level
Linearity
LGRGB
45
50
60
%
Gain Match
BRGB
0.8
1.0
1.2
Ratio
Analog OSD B
output level
Linearity
LBRGB
45
50
60
%
Continued on next page.
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