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參數資料
| 型號： | LA7668N |
| 廠商： | SANYO SEMICONDUCTOR CO LTD |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PDIP24 |
| 封裝： | SDIP-24 |
| 文件頁數： | 4/11頁 |
| 文件大小： | 163K |
| 代理商： | LA7668N |
Continued from preceding page.
Pin Functions
No. 5097-2/11
LA7668N
Parameter
Symbol
Conditions
min
typ
max
Unit
[Luminance Signal System]
Voltage gain
VGY
VIN = 1.0 Vp-p
6.0
6.5
7.0
dB
Frequency characteristics
fY
When 3 dB down from the 1 MHz output level
7.0
8.5
MHz
Signal input level
VIY
1.0
1.2
Vp-p
Output DC level
VOYDC
Pedestal level
0.7
0.9
1.1
V
Pin 18 output
V18
1.75
2.0
2.25
V
γ characteristics 90
γ90
APL = 90%, VIN = 100 IRE
101
105
109
IRE
γ characteristics 50
γ50
APL = 50%, VIN = 40 IRE
41
45
49
IRE
γ characteristics 10-1
γ10-1
APL = 10%, VIN = 80 IRE
81
85
89
IRE
γ characteristics 10-2
γ10-2
APL = 10%, VIN = 40 IRE
43
47
52
IRE
[Chrominance Signal System]
Voltage gain
VGC
VIN = 0.66 Vp-p
6.3
6.8
7.2
dB
Maximum gain
VGMAX
When f = 3.58 MHz, APL = 0%
7.3
7.8
8.3
dB
Minimum gain
VGMIN
When f = 3.58 MHz, APL = 100%
5.7
6.2
6.7
dB
Frequency characteristics
fC
When 3 dB down from the 1 MHz output level
4.0
5.0
MHz
Signal input level
VIC
0.66
0.8
Vp-p
Output DC level
VOCDC
1.1
1.4
1.7
V
[Control System]
Mute on voltage
VON
1.0
VCC
V
Mute off voltage
VOFF
0
0.5
V
Pin 2 voltage
V2
2.81
3.2
3.61
V
Pin 4 voltage
V3
2.72
3.1
3.50
V
Pin 11 voltage
V11
2.19
2.5
2.82
V
Pin 14 voltage
V14
2.29
2.6
2.94
V
Pin 15 voltage
V15
2.11
2.4
2.71
V
Pin 16 voltage
V16
2.02
2.3
2.60
V
Pin 21 voltage
V21
2.54
2.9
3.27
V
Pin 23 voltage
V23
2.02
2.3
2.60
V
Pin No.
Symbol
Function
1
LPFD
Correction signal frequency control
2
HU
Correction reference voltage (3.2 V)
3
YIN
Luminance signal input
4
HD
Correction reference voltage (3.1 V)
5
SYNC
Sync separator input
6
VCC
Power supply
7
BGP
BGP delay time constant
8
APLDET
APL level detection filter
9
HPFIN
High-frequency detection filter (input)
10
HPFOUT
High-frequency detection filter (output)
11
HEDET
High-frequency detection circuit control voltage
12
CIN
Chrominance signal input
13
COUT
Chrominance signal output
14
APLH
APL discrimination reference voltage (high)
15
APLL1
APL discrimination reference voltage (low)
16
APLL2
APL discrimination reference voltage (for the high-frequency detection circuit)
17
MUTE
Correction circuit muting
18
2.0VBIAS
Luminance signal system bias
19
GND
Ground
20
BGZOUT
4.0 V BGZ voltage output
21
LD
Correction reference voltage (2.9 V)
22
YOUT
Luminance signal output
23
LU
Correction reference voltage (2.3 V)
24
LPFU
Correction signal frequency control
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