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3. TECHNICAL BRIEF
3.14 Power Block Interface
The E-GOLDvoice integrated power management unit (PMU) supports direct connection to battery
(DCB). That means all supply voltages needed are generated on-chip with integrated linear voltage
regulators. The input of these linear voltage regulators is the battery voltage. The external memory and
SIM card supply is provided by the on-chip voltage regulators. Table 144 is an overview of the internal
generated supply voltages.
The integrated power management also provides the control state machine for system start up,
including start up with discharged batteries, trickle charging and system reset control. After system
start up several methods are implemented for active and idle power saving.
LGE Internal Use Only
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
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