User Guide

CCS Technical Documentation System Module and User Interface
NEM-2
Issue 1 07/03 Copyright Nokia. All rights reserved.. Page 37
Phone
The Phone part supply voltage distribution is controlled by UEMK asic. There are six sep-
arate regulators used by baseband. Detailed DCT4 Phone supply voltage distribution dia-
gram is shown in figure below.
Figure 6: Phone Supply Voltage Distribution Diagram
VBAT
UPP8M
LCD
VDDDSP
VDDMCU
VDDI
passive
LC-
filter
LEDs
LED+
Tomahawk
Vout
LDO 2.8V
VDD
Flash
VCC
CALLED1
VDDIO
VDDPDRAM
VCORE
VPP
VPP
Smart Covers
DC_Out
FM Radio
VDIG
VCC
SIM
VSIM
UEM
VBATBB3
VSIM
VFLASH2
VBATBB1
VFLASH1
VIO
VCORE
VBATBB5
VBATBB4
VBATBB2
VDD18
VDAAud1
VDAAud2
VDD28
VBATVR1
VBATTDriv
VBACK
VBATVR3
VBATVR6
VBATVR2
VBATVR5
VBATVR4
VBATVR7
VDAConvRx
VDAConvTx VRTC
VR1A
VR2
VR3
VR4
VR5
VR6
VR1B
VR7
VANA
VBACK
VDDA
Booster
GenIO0
BUZZ0
RF
control
power