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參數資料
| 型號： | LA7674 |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PDIP52 |
| 封裝： | SDIP-52 |
| 文件頁數： | 4/6頁 |
| 文件大小： | 95K |
| 代理商： | LA7674 |
No. 4361-4/6
LA7674
Continued from preceding page.
Parameter
Symbol
Conditions
Ratings
Unit
min
typ
max
R/B
Monochrome signal, contrast VR: 6V,
0.81
0.90
0.98
color VR: B – Y = 1Vpo
Demodulator output ratio
G/B
Monochrome signal, contrast VR:6V,
0.24
0.30
0.38
color VR: B – Y = 1Vpo
RB
Monochrome signal, contrast VR: 6V,
97
105
113
DEG
color VR: B – Y = 1Vpo
Demodulator phase angle
GB
Monochrome signal, contrast VR: 6V,
–130
–120
–110
DEG
color VR: B – Y = 1Vpo
Demodulator output DC voltage
VC-Y
Burst signal only, color VR: 0V
4.7
5.2
5.7
V
Demodulator output DC offset voltage
VC-Y
Burst signal only, color VR: 0V
–200
0
+200
mV
Demodulator output residual carrier
E car
Quiescent, killer off, color VR: 0V
0.05
Vp-p
[OSD]
Blanking pulse threshold level
THBL
C – IN: color bar, B – IN: variable
0.5
0.8
1.1
V
– Y out DC voltage (OSD mode)
V–Y
B–IN : 1.5V
2.5
2.8
3.1
V
THR
R – IN: variable, B – IN: 1.5V
1.9
2.2
2.5
V
RGB – in threshold level
THG
G – IN: variable, B – IN: 1.5V
THB
B – IN, variable
VR3V
R, G, B – IN :3V
5.2
5.5
5.8
V
RGB – Y out DC voltage (3 V)
VG3V
VB3V
VR4V
R, G, B – IN : 4V
5.7
6.0
6.3
V
RGB – Y out DC voltage (4 V)
VG4V
VB4V
VR5V
R, G, B – IN : 5V
6.2
6.5
6.8
V
RGB – Y out DC voltage (5 V)
VG5V
VB5V
[Deflection]
Synchronization separator input DC level
V SDC
6.0
6.3
6.6
V
Vertical free-running period
TV free
262
262.5
263
H
Maximum vertical synchronization period
TV max
Input: horizontal synchronization signal only
296.5
297
297.5
H
Minimum vertical synchronization period
TV min
224.5
225
225.5
H
Vertical blanking pulse width
PW VBL
20.25
20.5
20.75
H
Vertical blanking pulse wave Height value
PH VBL
7.0
7.5
V
Vertical output pulse width
PW VOUT
8.25
8.5
8.75
H
VOUT H
5.7
6
6.3
V
Vertical output voltage
VOUT M
4.2
4.5
4.8
V
VOUT L
0.1
0.3
V
Vertical external trigger load resistance
RTR
2.7
3.6
k
Vertical automatic synchronization stop voltage
VSAS
1.9
2.4
V
Vertical output pulse start VCC voltage
SVV
34
V
Horizontal free-running frequency deviation
fH
Deviation from 15.734kHz
–90
+30
+150
Hz
Horizontal pull-in range
fH PULL
Deviation from 15.734kHz
±400
±550
Hz
Horizontal output pulse width
P WH OUT
21.8
23.8
25.8
s
H PF
15
17
19
s
Horizontal output pulse phase
H P CEN
3.4
4.4
5.4
s
H PR
036
s
Horizontal output pulse start VCC voltage
S HV
4.5
5.3
V
AFC II FBP peak voltage
F BPH
4.1
4.6
5.1
V
Burst gate pulse delay time
Td BGP
0.2
0.6
1.2
s
Burst gate pulse width
PW BGP
2.7
3.7
4.7
s
VCR SW input voltage
VCR
1.3
2.0
V
X-ray protector circuit operation input voltage
VHD
0.64
0.74
0.84
V
Horizontal synchronization detection
H coin
4.2
4.5
4.8
V
Threshold level
Horizontal output current
HOUT
ICC = 13mA
3.8
4.7
5.5
mA
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