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參數(shù)資料
| 型號： | LA71730EM |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP100 |
| 封裝： | 14 X 20 MM, QFP-100 |
| 文件頁數(shù)： | 12/19頁 |
| 文件大小： | 819K |
| 代理商： | LA71730EM |
LA71730EM
No.7951-2/47
Electrical Characteristics at Ta = 25
°C, VCC = 5.0V
REC Mode Y
Input signal
Input/Output point
Ratings
Parameter
Symbol
Signal
Level
In
Out
Conditions
min
typ
max
Unit
Power Save Current
Dissipation(REC)
ICCRS
T18
T55
Measure the sum of currents flowing into T18 and
T55.
9.6
12
14.4
mA
Input Changeover
SW1-1
VSW11
SG1
PAL
A = 300
B = 700
T48A
T58
Measure the output level (= A+B) at T58.
950
1000
1050 mVp-p
Input Changeover
SW2-3
VSW23
SG1
PAL
A = 300
B = 700
T52A
T61
Measure the output level (= A+B) at T61.
1950
2050
2150 mVp-p
Input Changeover
SW3-2
VSW32
SG1
PAL
A = 300
B = 700
T50A
T63
Measure the output level (= A+B) at T63.
1950
2050
2150 mVp-p
Current dissipation
(REC)
ICCR
VCC
Measure the sum of currents flowing into T18,
T24, T42, T55, T72 and T91.
160
200
240
mA
Output Level 1
in EE mode
VEEP1
SG1
PAL
A = 300
B = 700
T48A
T65
Measure the output level (= A+B) at T65.
1950
2050
2150 mVp-p
Potential of Sync Tip
Level in REC mode
LSYNR
SG1
PAL
A = 300
B = 700
T48A
T65
Measure the output SYNC level at T65.
0.7
0.9
1.1
V
AGC Control
Characteristic 1
AGC1
SG1
PAL
A = 600
B = 1400
T48A
T65
Measure the A+C of output level at T65, ratio for
VEEP1.
-0.6
0.0
0.6
dB
AGC Control
Characteristic 2
AGC2
SG1
PAL
A = 150
B = 350
T48A
T65
Measure the A+C of output level at T65, ratio for
VEEP1.
-0.6
0.0
0.6
dB
AGC Control
Characteristic 3
AGC3
SG1
PAL
A = 600
B = 700
T48A
T65
Measure the A of output level at T65.
570
630
690 mVp-p
AGC Control
Characteristic 4
AGC4
SG1
PAL
A = 150
B = 700
T48A
T65
Measure the A+B of output level at T65.
2000
2200
2400 mVp-p
Output Level
in EE mode (NTSC)
VEEN
SG1
NTSC
A = 286
B = 714
T50A
T65
Measure the A+B of output level at T65.
1950
2050
2150 mVp-p
Sync Separator
Output Level
in REC mode
VCSYR
SG1
PAL
A = 300
B = 700
T50A
T67
Measure the output pulse wave height (= H) at
T67.
3.8
4.1
4.4
V
Sync Separator
Output Pulse width
in REC mode
PWCSYR
SG1
PAL
A = 300
B = 700
T50A
T67
Measure the pulse width at T68.
4
4.2
4.4
s
Sync Separator
threshold level
in REC mode
THCSYR
SG1
PAL
A = 300
B = 700
T50A
T67
Gradually reduce the input level,
and measure the input level at the point
that the output pulse width is 1s or more wider
than PWSYR.
-15
dB
Sync Separator
Output Level
in REC mode
VVSYR
SG1
PAL
A = 300
B = 700
T50A
T66
Measure the output pulse wave height (= H) at
T66.
4.1
4.3
4.5
V
Sync Separator
Output Pulse width
in REC mode
PWVSYR
SG1
PAL
A = 300
B = 700
T50A
T66
Measure the pulse width at T66.
140
160
180
s
YNR Characteristic
1 (REC)
RYNR1
SG2
f=627kHz
A = 300
B = 350
C = 30
T48A
T74
Measure the output level (= C) at T74.
(627k signal is inversion per 1H)
01
10
11
2.5
4.0
5.5
dB
Y-LPF frequency
Characteristic PAL
PYLPF
SG2
f=500kHz
A = 300
B = 350
C = 700
T48A
T74
Measure the output level (= C) at T74.
YNR=off
290
360
430 mVp-p
Y-LPF frequency
Characteristic 1PAL
PYLPF1
SG2
f=1MHz
A = 300
B = 350
C = 700
T48A
T74
Measure the output level (= C) at T74, calculate
the PYLPF1 = 20log (C/PYLPF).
YNR = off
-0.6
-0.1
0.4
dB
Y-LPF frequency
Characteristic 2PAL
PYLPF2
SG2
f=2MHz
A = 300
B = 350
C = 700
T48A
T74
Measure the output level (= C) at T74, calculate
the PYLPF2 = 20log (C/PYLPF).
YNR = off
-1.3
-0.3
0.7
dB
Y-LPF frequency
Characteristic 3PAL
PYLPF3
SG2
f=3MHz
A = 300
B = 350
C = 700
T48A
T74
Measure the output level (= C) at T74, calculate
the PYLPF3 = 20log (C/PYLPF).
YNR = off
-4.5
-2.5
-0.5
dB
Y-LPF frequency
Characteristic 4PAL
PYLPF4
SG2
f=4.43MHz
A = 300
B = 350
C = 700
T48A
T74
Measure the output level (= C) at T74, calculate
the PYLPF4 = 20log (C/PYLPF).
YNR=off
-25
dB
Continued on next page.
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