em65570sagh ELAN Microelectronics Corp, em65570sagh Datasheet - Page 36

• Manufacturer Part Number: em65570sagh
• Description: 68com/98seg 65k Color Stn Lcd Drivers
• Manufacturer: ELAN Microelectronics Corp

EM65570S
68COM/98SEG 65K Color STN LCD Drivers
30 x
7.17 Voltage Generation Circuit
vss
vss
VDD
vss
When using internal power circuit.
C2
C2
C2
C2
C2
The voltage converter contains the voltage generation circuit. The LCD drive voltages
other than V0, i.e., V1, V2, V3 and V4 are obtained by dividing V0 through a resistor
network. The LCD drive voltage from EM65570S is biased at 1/4, 1/5, 1/6, 1/7, 1/8, 1/9.
When using the internal power supply, connect a stabilizing capacitor C2 to each of
pins V0 to V4. The capacitance of C2 should be determined while observing the LCD
panel to be used.
C1
C1
C1
(2 times boosting)
VDD
VEE
CAP3+
CAP3-
CAP2-
CAP2+
CAP4+
CAP1+
CAP1-
V2X
VOUT
V0
V1
V2
V3
V4
(This specification is subject to change without further notice)
vss
vss
vss
VDD
When using internal power circuit.
C2
C2
C2
C2
C2
C1
C1
Product Specification (V1.0) 04.18.2006
C1
C1
(3 times boosting)
VDD
VEE
CAP3+
CAP3-
CAP2-
CAP2+
CAP4+
CAP1+
CAP1-
V2X
VOUT
V0
V1
V2
V3
V4