EM65568AF EMC [ELAN Microelectronics Corp], EM65568AF Datasheet - Page 17
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EM65568AF
Manufacturer Part Number
EM65568AF
Description
130 COM/ 128 SEG 4096 Color STN LCD Driver
Manufacturer
EMC [ELAN Microelectronics Corp]
Datasheet
1.EM65568AF.pdf
(112 pages)
- Current page: 17 of 112
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6.1 Power Supply Pins
6.2 LCD Power Supply Circuit Pins
* This specification is subject to be changed without notice.
6.
Symbol
Symbol
CAP1+
CAP2+
CAP3+
CAP4+
CAP5+
CAP1-
CAP3-
CAP4-
CAP5-
VOUT
VREG
VSSL
VSSH
CAP2
VREF
VDD
VBA
VEE
V0
V1
V2
V3
V4
Pin Description
Supply
Supply
Supply
Supply
Supply
Power
Power
Power
Power
Power
I/O
I/O
O
O
O
O
O
O
O
O
O
O
O
O
O
I
Power supply pin for logic circuit to +2.2 to 3.3V
Ground pin for logic circuit, connect to 0V
Ground pin for high voltage circuit, connected to 0V
Bias power supply pin for LCD drive voltage
When using an external power supply, convert impedance by using resistance-division of LCD
drive power supply or operation amplifier before adding voltage to the pins. These voltages
should have following relationship: VSS<V4<V3<V2<V1<V0
When the internal power supply circuit is active, these voltages are generated by the built-in
booster and voltage converter. Then, must connect capacitor each to VSS.
Connecting pin for the built in booster’s capacitor + side.
The capacitor is connected between CAP1- and CAP1+.
Connecting pin for the built in booster’s capacitor - side.
The capacitor is connected between CAP1- and CAP1+.
Connecting pin for the built in booster’s capacitor + side.
The capacitor is connected between CAP2- and CAP2+.
Connecting pin for the built in booster’s capacitor - side.
The capacitor is connected between CAP2- and CAP2+.
Connecting pin for the built in booster’s capacitor + side.
The capacitor is connected between CAP3- and CAP3+.
Connecting pin for the built in booster’s capacitor - side.
The capacitor is connected between CAP3- and CAP3+.
Connecting pin for the built in booster’s capacitor + side.
The capacitor is connected between CAP4- and CAP4+.
Connecting pin for the built in booster’s capacitor - side.
The capacitor is connected between CAP4- and CAP4+.
Connecting pin for the built in booster’s capacitor + side.
The capacitor is connected between CAP5- and CAP5+.
Connecting pin for the built in booster’s capacitor - side.
The capacitor is connected between CAP5- and CAP5+.
0.9 times VDD voltage output pin
Voltage input pin for generating reference power source
Voltage supply pin for booster circuit. Usually the same voltage level as VDD.
In the case of TCP, draw it as a separate terminal.
Output pin of boosted voltage in the built-in booster.
The capacitor must be connected between this pin and VSS.
Output pin for regulated voltage of VREG AMP.
The capacitor must be connected between this pin and VSS.
130 COM/ 128 SEG 4096 Color STN LCD Driver
17
Description
Description
2005/3/8 (V1.2)
EM65568
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