KS57C2308/P2308/C2316/P2316 LCD CONTROLLER/DRIVER

12-7

BIAS PIN
LCON.0
VSS
2R
R
R
R
VLCD = 3 V

Static and 1/3 Bias

VLC0
VLC1
VLC2
VDD

Voltage Dividing Resistor Adjustment

LCON.0
VSS
2R
R
R
R
2R’
R’
R’
R’
BIAS PIN
VLC0
VLC1
VLC2
VDD
LCON.0
VSS
2R
R
R
R
VLCD = 2.5 V

1/2 Bias

BIAS PIN
VLC0
VLC1
VLC2
VDD
R = Voltage dividing resistor
R' = External resistor
LCON.0
VSS
2R
R
R
R
VLCD = 5 V
Static and 1/3 Bias
BIAS PIN
VLC0
VLC1
VLC2
VDD

Static and 1/3 Bias

VLCD

(VLCD = 2.5 V at VDD = 5 V)

(VLCD = 5 V at VDD = 5 V)

(VLCD = 3 V at VDD = 3 V)

(VLCD = 3 V at VDD = 5 V)

Figure 12-4. Voltage Dividing Resistor Circuit Diagrams