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參數(shù)資料
| 型號(hào)： | KS0717 |
| 廠商： | SAMSUNG SEMICONDUCTOR CO. LTD. |
| 英文描述： | Driver & Controller for STN LCD(STN LCD驅(qū)動(dòng)器和控制器) |
| 中文描述： | 驅(qū)動(dòng)程序 |
| 文件頁數(shù)： | 26/57頁 |
| 文件大小： | 288K |
| 代理商： | KS0717 |
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KS0717
55COM/100SEG DRIVER & CONTROLLER FOR STN LCD
26
Preliminary
2)
Using External Resistors, Ra and Rb (INTRS =
“
L
”
)
When INTRS pin is low, it is necessary to connect external regulator resistor Ra between VR and VSS, and Rb
between V0 and VR.
Example: For the following requirements.
1. LCD driver voltage, V0 = 10V
2. 6-bit reference voltage register = (1, 0, 0, 0, 0, 0)
3. Maximum current flowing Ra, Rb = 1
μ
A
<Equation 3>
From Equation 1
<Equation 4>
From Equation 1
<Equation 5>
From requirement 3.
From equations Equation 3, 4 and 5:
Ra = 1.69 [
]
Rb = 8.31 [
]
Table 13. shows the range of V0 depending on the above requirements.
Table 13. The Range of V0 Depending
Electronic Volume Level
32
10.00
0
.......
.......
.......
.......
63
V0
7.59
12.43
10
1
Ra
Rb
+
V
EV
×
[V]
=
V
EV
1
-63
32
–
(
)
162
–
2.1 = 1.698
×
[V]
=
Ra + Rb
---------10
1
μ
A
[
]
=
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