Samsung KS57C2308 Manual page 255

KS57C2308/P2308/C2316/P2316
Static and 1/3 Bias
V
DD
LCON.0
V
LC0
V
LC1
V = 3 V
LCD
V
LC2
Static and 1/3 Bias
Static and 1/3 Bias
V
DD
LCON.0
V
LC0
V
LC1
V = 5 V
LCD
V
LC2
R = Voltage dividing resistor
R' = External resistor
(V LCD = 3 V at V DD = 5 V)
BIAS PIN
2R
R
R
R
V
SS
(V LCD = 5 V at V DD = 5 V)
(V LCD = 3 V at V DD = 3 V)
BIAS PIN
2R
R
R
R
V
SS
Figure 12-4. Voltage Dividing Resistor Circuit Diagrams
1/2 Bias (V LCD = 2.5 V at V DD = 5 V)
V
DD
LCON.0
V
LC0
V
LC1
V = 2.5 V
LCD
V
LC2
Voltage Dividing Resistor Adjustment
V
DD
LCON.0
V
LC0
V
LC1
V
LCD
V
LC2
LCD CONTROLLER/DRIVER
BIAS PIN
2R
R
R
R
V
SS
BIAS PIN
2R 2R'
R R'
R'
R
R'
R
V
SS
12-7