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參數資料
| 型號： | LC74981W |
| 文件頁數： | 5/10頁 |
| 文件大小： | 160K |
| 代理商： | LC74981W |
No. 6450-5/10
LC74980W
Continued from preceding page.
Pin No.
Pin
I/O type
Connection
Notes
I/O
Type
53
DVSS
P
GND
Digital system ground
54
RIN7
I
g74980m03
ADC
MSB
55
RIN6
I
g74980m03
Y signal input
56
RIN5
I
g74980m03
57
RIN4
I
g74980m03
58
RIN3
I
g74980m03
59
RIN2
I
g74980m03
60
RIN1
I
g74980m03
61
RIN0
I
g74980m03
LSB
62
DVDD
P
Power supply
Digital system power supply: 3.3 V
63
DVSS
P
GND
Digital system ground
64
GIN7
I
g74980m03
ADC
MSB
65
GIN6
I
g74980m03
U signal input
66
GIN5
I
g74980m03
67
GIN4
I
g74980m03
68
GIN3
I
g74980m03
69
GIN2
I
g74980m03
70
GIN1
I
g74980m03
71
GIN0
I
g74980m03
LSB
72
DVDD
P
Power supply
Digital system power supply: 3.3 V
73
DVSS
P
GND
Digital system ground
74
BIN7
I
g74980m03
ADC
MSB
75
BIN6
I
g74980m03
V signal input
76
BIN5
I
g74980m03
77
BIN4
I
g74980m03
78
BIN3
I
g74980m03
79
BIN2
I
g74980m03
80
BIN1
I
g74980m03
81
BIN0
I
g74980m03
LSB
82
DVDD
P
Power supply
Digital system power supply: 3.3 V
83
DVSS
P
GND
Digital system ground
84
CLPP
O
POB4
ADC
Clamp pulse
85
CLPY
O
POT4
ADC
Y clamp level
86
CLPCB
O
POT4
ADC
Cb clamp level
87
CLPCR
O
POT4
ADC
Cr clamp level
88
DVDD
P
Power supply
Digital system power supply: 3.3 V
89
DVSS
P
GND
Digital system ground
90
HITV
I
g74980m04
TV decoder
TV horizontal synchronizing signal input
91
VITV
I
g74980m04
TV decoder
TV vertical synchronizing signal input
92
HIDTV
I
g74980m04
Digital interface
DTV horizontal synchronizing signal input
93
VIDTV
I
g74980m04
Digital interface
DTV vertical synchronizing signal input
94
N.C
—
—
—
—
95
N.C
—
—
—
—
96
BLKIH
I
g74980m02
Digital interface
Horizontal blanking signal input or composite blanking signal
97
BLKIV
I
g74980m02
Digital interface
Vertical blanking signal input (Held high in composite mode)
98
PLLH
O
POB4
PLL
PLL internal divider output
99
DVSS
P
GND
Digital system ground
100
DVDD
P
Power supply
Digital system power supply: 3.3 V
101
RST
I
g74980m01
Initialization circuit
System reset (reset to low)
102
BLKHOUT
O
POB8
Initialization circuit
Horizontal data enable
103
BLKVOUT
O
POB8
Initialization circuit
Vertical data enable or composite data enable
104
DVDD
P
Power supply
Digital system power supply: 3.3 V
Continued on next page.
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