Operation Of The Option A Power Supply Circuit - Oki ML63611 User Manual

ML63611 User's Manual
Chapter 15 Power Supply Circuit (POWER)

15.3.2 Operation of the OPTION A Power Supply Circuit

The battery voltage (V
The output voltages of the voltage regulator circuits are used as the internal logic power supply (V
power supply voltage (V
directly to the power supply of the high-speed clock generator circuit.
The output voltage of the voltage regulator V/R1 is supplied as the power supply (V
circuits during low-speed clock operation.
The output voltage of the voltage regulator circuits V/R2 and V/R3 are always supplied respectively as the power
supply voltage (V
XT
generator circuit.
OPTION A (C): 1.5 V (3.0 V), Without regulator
circuit for LCD bias
) is supplied to the different voltage regulator circuits (V/R1 and V/R2) of the OPTION A.
DD
) for the low-speed clock generator circuit. Further, the battery voltage is connected
XT
) for the low-speed clock generator circuit and the reference voltage (V
15 – 4
OPTION B (D): 1.5 V (3.0 V), With regulator
) and the
CH
) for the internal logic
CH
) for the LCD bias
DD1
circuit for LCD bias