NJU6535
(8) LCD panel drive
(8-1) LCD driving voltage generation circuit
LCD driving voltage generation circuit generates LCD driving bias voltages V0, V1 and V2. It adjusts the
voltage by 8 steps electrical volume from VDD and allots the voltage to V0, V1 and V2 by
resistor-voltage-dividing as shown in below.
VDD, V0, V1 and V2 terminals requires external capacitors for bias voltage stabilization for display quality.
These values of capacitors should be fixed in accordance with evaluation in the application.
VDD
V0
V1
V2
VSS
NJU6535 internal
E.V.R.(8 steps)
10k
10k
+
+
+
+
10k
VLCD
10k
When the E.V.R. is not used, V0 terminal should connect to VDD.
When the NJU6535 operates as 1/2 bias operation, V1 terminal should connect to V2.
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