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參數(shù)資料
| 型號： | S6B0723 |
| 廠商： | SAMSUNG SEMICONDUCTOR CO. LTD. |
| 英文描述： | 132 SEG / 65 COM DRIVER & CONTROLLER FOR STN LCD |
| 中文描述： | 132賽格/ 65 COM驅(qū)動程序 |
| 文件頁數(shù)： | 30/71頁 |
| 文件大?。?/td> | 946K |
| 代理商： | S6B0723 |
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S6B0723 PRELIMINARY SPEC. VER. 0.9 65 COM / 132 SEG DRIVER & CONTROLLER FOR STN LCD
27
Voltage Regulator Circuits
The function of the internal voltage regulator circuits is to determine liquid crystal operating voltage, V0, by adjusting
resistors, Ra and Rb, within the range of |V0| < |VOUT|. Because VOUT is the operating voltage of operational-
amplifier circuits shown in Figure 15, it is necessary to be applied internally or externally.
For the Eq. 1, we determine V0 by Ra, Rb and V
EV
. The Ra and Rb are connected internally or externally by INTRS
pin. And V
EV
called the voltage of electronic volume is determined by Eq. 2, where the parameter
α
is the value
selected by instruction, "Set Reference Voltage Register", within the range 0 to 63. V
REF
voltage at Ta = 25
°
C is
shown in table 14-1.
Rb
V0 = ( 1 +
) x V
EV
[V] ------ (Eq. 1)
Ra
(63 -
α
)
V
EV
= ( 1 -
) x V
REF
[V] ------ (Eq. 2)
162
Table 14-1. V
REF
Voltage at Ta = 25
°
C
REF
Temp. coefficient
-0.05% /
°
C
External input
V
REF
[V]
H
2.1
L
VEXT
Table 14-2. Electronic Contrast Control Register (64 Steps)
SV5
SV4
SV3
SV2
SV1
SV0
Reference voltage
parameter (
a
)
V0
Contrast
0
0
:
:
1
:
:
1
1
0
0
:
:
0
:
:
1
1
0
0
:
:
0
:
:
1
1
0
0
:
:
0
:
:
1
1
0
0
:
:
0
:
:
1
1
0
1
:
:
0
:
:
0
1
0
1
:
:
32 (default)
:
:
62
63
Minimum
:
:
:
:
:
Maximum
Low
:
:
:
:
:
High
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| S6B0724 | 132 SEG / 65 COM DRIVER & CONTROLLER FOR STN LCD |
| S6B0728 | 132 SEG / 128 COM DRIVER & CONTROLLER FOR STN LCD |
| S6B0741 | 128 SEG / 129 COM DRIVER %26 CONTROLLER FOR 4 GRAY SCALE STN LCD |
| S6B0755 | 128 SEG / 65 COM DRIVER & CONTROLLER FOR STN LCD |
| S6B0756 | 65COM / 96 SEG DRIVER & CONTROLLER FOR STN LCD |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| S6B0724 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:132 SEG / 65 COM DRIVER & CONTROLLER FOR STN LCD |
| S6B0728 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:132 SEG / 128 COM DRIVER & CONTROLLER FOR STN LCD |
| S6B0741 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:128 SEG / 129 COM DRIVER & CONTROLLER FOR 4 GRAY SCALE STN LCD |
| S6B0755 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:128 SEG / 65 COM DRIVER & CONTROLLER FOR STN LCD |
| S6B0756 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:65COM / 96 SEG DRIVER & CONTROLLER FOR STN LCD |
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