参数资料
型号: SSD1801Z
厂商: Electronic Theatre Controls, Inc.
英文描述: LCD Segment / Common Driver with Controller for Character Display System
中文描述: LCD段/通用驱动器与控制器的字符显示系统
文件页数: 19/42页
文件大小: 762K
代理商: SSD1801Z
SOLOMON
Rev 1
.
1
01/2003
SSD1801 Series
18
06h (Pattern 6)
70h
71h
72h
73h
74h
75h
76h
77h
78h
79h
7Ah
7Bh
7Ch
7Dh
7Eh
7Fh
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
07h (Pattern 7)
NOTE: “-” Don’t use
“X” Pattern 0 or 1
LCD Driving Voltage Generator and Regulator
This module generates the LCD voltage required for display driving output. It takes a single supply input and
generates necessary voltage levels. This block consists of:
1. 2x/3x DC-DC voltage converter
The built-in Regulated DC-DC voltage converter is used to generate positive LCD driving voltage with reference
to AV
SS
. For SSD1801, it is possible to produce boosting from the internal reference voltage V
REF
. Detail
configurations of the DC-DC converter for boosting are given in Figure 10.
Figure 10 – Configurations for DC-DC Converter
SSD1801
SSD1801
AVDD
C1P
C1N
C2P
VOUT
AVDD
C1P
C1N
C2P
C2N
VOUT
C1
+
+
C2
+
C2
C1
+
+
C2
C2
+
AVDD
AVDD
3x DC-DC Converter 2x DC-DC Converter
Remarks:
C1 = 2.2
μ
F - 4.7
μ
F
C2 = 0.1
μ
F - 1
μ
F
Figure 11
- Configurations for Voltage Regulator
DC-DC
Converter
R2
REF
R1
AVss
V
REF
V
OUT
/
V
L6
V
EXT
V
F
+
-
Remarks:
R1 and R2 = 500K-2.5M ohms
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