
17-1
ML63326 User's Manual
Chapter 17 Power Supply Circuit (POWER)
17
Chapter 17 Power Supply Circuit (POWER)
17.1 Overview
The ML63326 contains a constant voltage circuit for the internal logic power supply (V
DDL
),
a constant voltage circuit for the LCD bias reference power supply (V
DD2
), and a voltage
doubler circuit for the power supply for high-speed oscillation (V
DDH
).
17.2 Power Supply Circuit Configuration
Figure 17-1 shows the power supply circuit configuration.
Figure 17-1 Power Supply Circuit Configuration
OSC1
OSC0
High-speed
clock generator
circuit
Constant voltage
circuit
Bias generator
V
DD
V
DDH
CB1
CB2
V
DD5
V
DD4
V
DD3
V
DD2
V
DD1
C1
C2
V
SS
C
12
C
a
C
b
C
c
C
d
C
e
C
b12
2.0 to 5.5 V
Voltage
doubler
circuit
V
DDL
C
l
C
h
Internal logic
section
Содержание ML63326
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