ssd1800 ETC-unknow, ssd1800 Datasheet - Page 24

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

9
Solomon Systech
Note: VC, VF = X
VOLTAGE GENERATOR CIRCUIT
G ND
E xte rna l
P ow e r
S up p l y
GND
Remarks:
(VC,VF = 1,1)
C1 = 2.2µF - 4.7µF
C2 = 0.1µF - 1µF
R1 and R2 = 500K-2.5M ohms
R1
2 ,
X
3x DC-DC Converter
VDD
C1
R2
0
+
VDD
GND
in
C2
C2
Power Control Register
+
+
Figure 12 - When Built-in Power Supply is used
Figure 13 When External Power Supply is used
(VC , V F = 0 ,1)
- +
C2
Note: VC, VF = bit X
AVDD
C1P
C1N
C2P
C2N
VL6
VF
VL6
VL5
VL4
VL3
VL2
AVSS
X
X
2
0
is the bit of turns on/off of the internal voltage converter and regulator
is the bit of turns on/off of the voltage divider
VL6
AVDD
C1P
C1N
C2P
C2N
VF
VL5
VL4
VL3
VL2
AVSS
2
and X
0
GND
R1
in the command of Power Control Register;
C1
+
VDD
Mar 2004
C2
2x DC-DC Converter
R2
+
GND
C2
VDD
+
GND
E xte rn al
P ow e r
S up ply
P 24/42 Rev 1.0
AVDD
C1P
C1N
C2P
VL6
VF
VL6
VL5
VL4
VL3
VL2
AVSS
(VC , VF = 0 ,0 )
All Capacitor is C2.
C2 : 0.1 uF
AVDD
C1P
C1N
C2P
C2N
VF
VL6
VL5
VL4
VL3
VL2
AVSS
SSD1800 Series