124
EPSON
E0C88832/88862 TECHNICAL MANUAL
7 ELECTRICAL CHARACTERISTICS
7.4 Analog Circuit Characteristics
■
LCD drive circuit
The Typ. values of the LCD drive voltage shown in the following table shift in difference of panel load
(panel size, drive duty, display segment number, display pattern). Therefore, these should be evaluated
by connecting to the actual panel to be used. See "7.8 Characteristics Curves" for the load characteristics.
•
TYPE A
Item
Symbol
Min.
Typ.
Max.
Unit
Condition
LCD drive voltage
Typ
×
0.94
0.412V
C5
3.61
3.76
3.88
4.00
4.12
4.27
4.39
4.51
4.63
4.75
4.90
5.02
5.14
5.26
5.38
5.53
Typ
×
1.06
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
When 1 M
Ω
load resistor is connected
between V
SS
and V
C2
(no panel load)
When 1 M
Ω
load
resistor is connected
between V
SS
and V
C5
(no panel load)
Note
1
Unless otherwise specified: V
DD
= V
C2
(LCX = FH) + 0.1 to 5.5 V, V
SS
= 0 V, Ta = 25
°
C, C
1
–C
10
= 0.1
µ
F
LCX = 0H
LCX = 1H
LCX = 2H
LCX = 3H
LCX = 4H
LCX = 5H
LCX = 6H
LCX = 7H
LCX = 8H
LCX = 9H
LCX = AH
LCX = BH
LCX = CH
LCX = DH
LCX = EH
LCX = FH
V
C2
V
C5
TYPE A
Note) 1
Fixing the LCD contrast is not recommended. A contrast adjustment function should be included in the software.
Item
Symbol
Min.
Typ.
Max.
Unit
Condition
LCD drive voltage
Typ
×
0.94
0.412V
C5
4.20
4.34
4.49
4.63
4.78
4.92
5.07
5.21
5.36
5.50
5.65
5.80
5.94
6.09
6.23
6.38
Typ
×
1.06
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
When 1 M
Ω
load resistor is connected
between V
SS
and V
C2
(no panel load)
When 1 M
Ω
load
resistor is connected
between V
SS
and V
C5
(no panel load)
Note
1
Unless otherwise specified: V
DD
= V
C2
(LCX = FH) + 0.1 to 5.5 V, V
SS
= 0 V, Ta = 25
°
C, C
1
–C
10
= 0.1
µ
F
LCX = 0H
LCX = 1H
LCX = 2H
LCX = 3H
LCX = 4H
LCX = 5H
LCX = 6H
LCX = 7H
LCX = 8H
LCX = 9H
LCX = AH
LCX = BH
LCX = CH
LCX = DH
LCX = EH
LCX = FH
V
C2
V
C5
TYPE B
Note) 1
Fixing the LCD contrast is not recommended. A contrast adjustment function should be included in the software.
•
TYPE B
Summary of Contents for 0C88832
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