
- 41 -
3. TECHNICAL BRIEF
LGE Internal Use Only
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Control Unit
• Pulse width modulated (PWM) LED driver for dimmed light
• Device ON/OFF switching
• Over-temperature warning
• System start-up state machine
• Under-voltage shut down with defined system behavior
• Charger detection
• Battery insertion/removal detection
• Independent LDO switch on
• Software and hardware programmable voltages
• System watchdog timer with on-chip oscillator.
Figure 5 S-GOLDradio PMU circuit diagram
0.1u
C113
VRF3_2V85
VBAT
VVIB_2V8
C108
2.2u
220n
C106
VRF3_2V85
C104
220n
100p
C112
2.2u
C121
C114
0.01u
1u
C105
VAUX_2V9
TP102
47nH
L101
VBAT
L102
47nH
VRF2_1V5
VRF3_2V85
VRF3_2V85
VUSB_3V1
C110
VRF3_2V85
1u
C103
1u
VBAT
R111
390K
R112
4.7K
0.01u
C116
C102
1u
C126
VSD1_1V5
VRF3_2V85
220n
C117
0.01u
VSS_LDO2
D6
VSS_LDO3
C3
L12
VSS_MAIN_1
VSS_MAIN_2
L10
VSS_MAIN_3
M10
J8
VSS_MAIN_4
L8
VSS_MAIN_5
VSS_MS
F3
VUSB
B7
VVIB
D12
V4
VSSRF11
V5
VSSRF12
VSSRF13
V6
VSSRF14
W1
N2
VSSRF2
N3
VSSRF3
P2
VSSRF4
R2
VSSRF5
T2
VSSRF6
VSSRF7
U2
VSSRF8
U3
VSSRF9
U6
VSS_AUDIO
E3
H2
VSS_EP
E11
VSS_LDO1
C7
VIO
C10
VLED
A7
VMMC
A3
VPLL
VRF1
A2
B4
VRF2
B1
VRF3
A8
VSIM
M2
VSSRF1
V2
VSSRF10
VDDPLL
W6
VDDP_EBU_1
V19
L1
VDDRX
T3
VDDTRX
VDDTX
W4
W5
VDDVCO
VDDXO
V7
L11
VDD_MAIN_1
VDD_MAIN_2
M11
VDD_MAIN_3
L9
M9
VDD_MAIN_4
VDD_RF2PLL
B3
E1
VAUDIO
D11
VAUX
VBAT_AUDIO
E2
VBAT_BSW_USB_MMC
C6
VBAT_LDO1
E12
VBAT_LDO2
B8
B2
VBAT_RF13
VDDDIG
T6
P4
VDDMS
W3
M0
H3
J3
M1
M10
F4
M2
G4
H4
M7
M8
G3
J4
M9
K1
AGND_MS1
AGND_MS2
K4
C122
120p
C124
1u
1u
1u
C107
C127
0.01u
C123
C118
1u
C131
0.1u
0.1u
C130
0.1u
C129
VSIM_2V8
12p
C111
VRF1_2V85
VIO_2V62
0
R591
R113
100K
VAUDIO_2V5
VRF2_1V5
VRF1_2V85
0.01u
C115
1u
C125
VMMC
C119
2.2u
VRF3_2V85
2.2u
C101
VPLL_1V5
VSD2_1V8
REMOTE_ADC
BAT_ID
RF_TEMP
Содержание KC550
Страница 1: ...Date May 2008 Issue 1 0 Service Manual Model KC550 Service Manual KC550 Internal Use Only ...
Страница 129: ... 130 LGE Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes ...
Страница 155: ...LGE Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes 156 ...
Страница 182: ...Note ...
Страница 183: ...Note ...