ssd1800 ETC-unknow, ssd1800 Datasheet - Page 21

• Manufacturer Part Number: ssd1800
• Description: 80x16 + 1 Icon Line Lcd Segment / Common Driver With Controller For Character Display System
• Manufacturer: ETC-unknow

NOTE: “-” Don’t use
8.12 LCD Driving Voltage Generator and Regulator
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 internal voltage reference, VREF, relative to AVSS
Figure 10 – Configurations for DC-DC Converter
SSD1800 Series
This module generates the LCD voltage required for display driving output. It takes a single supply input and
3x DC-DC Converter
Remarks:
C1 = 2.2µF - 4.7µF
C2 = 0.1µF - 1µF
C1
+
AVDD
“X” Pattern 0 or 1
07h (Pattern 7)
Character Code
06h (Pattern 6)
C2
C2
(DDRAM data)
+
+
SSD1800
AVDD
C1P
C1N
C2P
C2N
VL6
Rev 1.0
C1
AVDD
+
2x DC-DC Converter
C2
+
P 21/42 Mar 2004
CGRAM address
70h
71h
72h
73h
74h
75h
76h
77h
78h
79h
7Ah
7Bh
7Ch
7Dh
7Eh
7Fh
C2
+
SSD1800
AVDD
C1P
C1N
C2P
VL6
ICONRAM bits
D7
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Figure 11 - Configurations for Voltage Regulator
D6
-
-
-
-
-
-
-
-
-
-
-
-
-
-
D5
-
-
-
-
-
-
-
-
-
-
-
-
-
-
D4
X
X
X
X
X
X
X
X
X
X
X
X
X
X
R1
V
F
D3
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Remarks:
R1 and R2 = 500K-2.5M ohms
+
-
AVss
V
Converter
REF
R2
DC-DC
D2
X
X
X
X
X
X
X
X
X
X
X
X
X
X
D1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
V
Solomon Systech
L6
D0
X
X
X
X
X
X
X
X
X
X
X
X
X
X