參數(shù)資料
型號(hào)： S6B0717X01-xxX0
廠商： SAMSUNG SEMICONDUCTOR CO. LTD.
英文描述： GIGATRUE 550 CAT6 ORANGE STRANDED BULK 1000FT
中文描述： 55的COM / 100賽格驅(qū)動(dòng)
文件頁數(shù)： 29/65頁
文件大小： 910K
代理商： S6B0717X01-XXX0
S6B0717
55 COM / 100 SEG DRIVER & CONTROLLER FOR STN LCD
25
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 16, 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
V
REF
[V]
H (internal)
2.1
L (external)
VEXT
Table 14-2. Reference Voltage Parameter (
a
)
SV5
SV4
SV3
SV2
SV1
SV0
Reference voltage parameter (
a
)
0
0
:
:
1
1
0
0
:
:
1
1
0
0
:
:
1
1
0
0
:
:
1
1
0
0
:
:
1
1
0
1
:
:
0
1
0
1
:
:
62
63
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S6B0717 55 COM / 100 SEG DRIVER & CONTROLLER FOR STN LCD
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參數(shù)描述
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