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Copyright © 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
6. CIRCUIT DIAGRAM
47u
C4153
1
2
+2V2_MTK_AVDD
+2V2_MTK_AVDD
+1V15_MTK_PROC
+3V3_MTK_VUSB
+3V3_MTK_VMC
5.6k
R4132
2
1
VBAT_VPROC_1
VBAT_VPROC_2
VBAT_VPROC_3
VBAT_VPA
AVDD22_BUCK_1
AVDD22_BUCK_2
VBAT_VSYS
VBAT_LDOS3_1
VBAT_LDOS3_2
VBAT_LDOS2
VBAT_LDOS1
DVDD18_DIG
DVDD18_IO
AVDD28_AUXADC
AVDD28_ABB
GND_ISINK
GND_VSYS
GND_VPA
GND_VPROC_1
GND_VPROC_2
GND_VPROC_3
GND_ABB
GND_LDO_1
GND_LDO_2
GND_LDO_3
GND_LDO_4
GND_LDO_5
GND_LDO_6
GND_LDO_7
GND_LDO_8
GND_LDO_9
GND_LDO_10
GND_LDO_11
GND_LDO_12
GND_LDO_13
GND_LDO_14
GND_LDO_15
GND_LDO_16
GND_LDO_17
GND_LDO_18
GND_LDO_19
GND_LDO_20
GND_LDO_21
GND_LDO_22
GND_LDO_23
ISINK0
ISINK1
ISINK2
ISINK3
VPROC_1
VPROC_2
VPROC_3
VPROC_FB
GND_VPROC_FB
VPA_1
VPA_2
VPA_FB
VSYS
VA
VCN28
VTCXO
VCAMA
VCN33
AVDD33_RTC
VM
VRF18
VIO18
VIO28
VCN18
VCAMD
VCAM_IO
VEMC_3V3
VMC
VMCH
VUSB
VSIM1
VSIM2
VGP1
VIBR
VGP2
VGP3
VCAM_AF
VREF
GND_VREF
U4100
MT6323
N14
P14
N7
L14
N8
M7
L8
N9
P9
N6
P4
L6
P7
L13
K14
J12
M4
L12
H11
J13
C3
M6
P3
L4
N3
M3
H14
D12
B14
A14
C12
B12
E14
D14
C14
C10
E10
C9
E9
H10
H9
H8
H7
H6
H5
J10
J9
J8
J7
J6
G9
G8
G7
G6
G5
F9
F8
F7
F6
F5
K8
K6
H2
F10
F11
E11
E13
G11
B10
J2
D3
A5
A8
P2
P5
P6
P8
H13
M14
J14
A13
G13
F14
F13
L4130
680n
2
1
1u
C4152
1
2
C4151
1u
+2V8_MTK_LCD_VCC
1u
C4149
C4145
0.1u
C4147
0.1u
1
2
+3V0_TOUCH_VDD
+2V8_MTK_RTC
+3V0_MTK_USIM2
+3V0_MTK_USIM1
1u
C4144
+1V8_MTK_VIO
C4143
1u
10u
C4141
10u
C4142
+2V8_MTK_VIO
+1V8_MAIN_CAM_IOVDD
+1V8_MTK_LCD_IO
+2V8_MAIN_CAM_AVDD
+3V3_SD_VCC
+3V0_MTK_VIBR
VBAT
+1V8_MTK_VCN
+1V825_MTK_VRF
C4134
DNI
DNI
C4131
DNI
C4130
+1V8_MTK_VIO
ZD4131
2
1
+2V8_MTK_RTC
+3V3_MTK_VCN
+2V8_MTK_VTCXO
+2V8_MTK_VCN
+2V8_MTK_VA
C4135
2.2u
4_1_7_2_MT6323_POWER_V0_4_0402212754
C4135
C4135
+3V4_MTK_VPA
+1V2_MTK_LPDDR3
+3V3_MTK_eMMC
78
78
77
77
1u
C4132
+2V8_MTK_VA
75
75
680n
L4132
4_1_7_2_MT6323_POWER_V0_4_0402212754
L4132
L4132
4_1_7_2_MT6323_POWER_V0_4_0402212754
L4132
L4132
1u
C4140
+1V8_MTK_DTV
+2V8_MAIN_CAM_AF
L4131
2.2u
2
1
SC4130
1
SC4131
1
GND_VPROC_FB
VPROC_FB
BOT CAN
140312_Changed from HDK
DTV
Imax (mA)
Vout (Volt)
LDOname
Type
100
20
3.3
1.2/1.3/1.5/1.8
VGP1
VSUB
RF chip
13/26MHz reference clock
Analog baseband
Analog power for camera module
WIFI
Digital IO
1st Sim card
2st SIM card
DLDO
DLDO
ALDO
DLDO
ALDO
USB
ALDO
DLDO
VCN28
2.8
30
VSIM1
VIO28
VTCXO
VA
VCAMA
VCN_3V3
ALDO
VSIM2
2.8
2.8
2.8
1.8/3.0
3.3/3.4/3.5/3.6
2.8
1.8/3.0
150
40
150
240
50
200
50
Application
DLDO
DLDO
2.0/2.8/3.0/3.3
General purpose LDO
100
DLDO
VGP2
General purpose LDO
2.0/2.5/2.8/3.0
1.2/1.3/1.5/1.8
3.3V EMMC
400
3.0/3.3
VEMC_3V3
DLDO
100
DLDO
VCAM_AF
AF application
2.0/2.8/3.0/3.3
1.2/1.3/1.5/1.8
SD 2.0/3.0 memory card
100
1.8/3.3
VMC
ALDO
SD 3.0 memory card
400
3.0/3.3
VMCH
ALDO
100
DLDO
VIBR
Vibrator
2.0/2.8/3.0/3.3
1.2/1.3/1.5/1.8
LDO types and brief specifications
System LDO input
1,400
VSYS
2.2
3G power amplifier
600
VPA
0.5V - 3.4V (0.1V/step)
Processor / Digital Core
2,800
0.7-1.3V/1.35V (optional)
VSYS
(6.25mV/step)
Buck converter brief specifications
Memory power
Real-time clock
700
2
150mA
200mA
300mA
Layout : Differancial signal
Close to MT6323
30mil
Add Zenar Diode
500mW -Between IC and IO port
Place on the path from VBAT to IC
(Battery connector or test point
or IO connector)
Refer to MT6323 design
BACKUP BATT
10uAH / 0.03F
notice for Zener selection
30mil
as possible and priority
as VPROC>VPA>VSYS
20mil
20mil
20mil
20mil
<4-1-7-2_MT6323_POWER> Rev_0.4
1. GND_VREF(N14) => Cap
Dedicate VSS ball, must return to cap then to main GND:
Cap closed to MT6323.
Place input cap. as close MT6323
Only 150mA from VCAMD
external LDO is required for DVDD current > 150mA
Note 1
Note 1
Refer to MT6323 design notice for Buck GND layout rule.
2.2uH Rate current of the inductor should be larger than 1.5A
0.68uH Rate current of the inductor should be larger than 2.5A
Refer to MT6323 design notice
Near-end cap
Note 2
Please check your CAM module DVDD current
1.24/1.39/1.54/1.84
2.8
VM
VRTC
PTCLDO
VSYS LDO
IO pad power
RF application
300
200
1.8
1.825
VIO18
VRF18
VSYS LDO
VSYS LDO
Camera IO application
Camera application
100
150
1.8
1.2/1.3/1.5/1.8
VCAM_IO
VCAMD
VSYS LDO
VSYS LDO
General purpose LDO
General purpose LDO
120
200
1.8
1.2/1.3/1.5/1.8
VCN18
VGP3
VSYS LDO
VSYS LDO
LCD
MOTOR
PROXIMITY_AMBIENT , ACCEL_COMPASS
SPK_RCV_S/W (VCC)
MSM (AVDD BUCK)
Main Camera
HAPTIC LDO (VDD) , TX MODULE (VBATT) , PAM , NFC , CHARGING IC (BAT)
EXT LDO (VDD) , DC CONVERTER , LDO , B/L B CAMERA FLASH , AUDIO_CODEC (SPVDD)
TOUCH
SUB SIM
MICRO_SD (VCC) , NFC
MICRO_SD (VDD)
MAIN_CAMERA , VT CAMERA
eMMC (VCC)
MAIN_CAMERA , VT CAMERA
IC WIFI (AVDD) , MSM (AVDD)
NFC , JTAG , ADC , I2C_PULL_UP , MSM_(DVDD,AVDD) , eMMC_(CMD,VCC,DATA,VDD) , CHARGER_(I2CIN_IRQB) , USB
TOUCH , AUDIO_CODEC (HPVDD) , EARJACK , HALL IC , PROXIMITY_AMBIENT , ACCEL_COMPASS , MICRO_SD_S/W , TRANSCEIVER (AVDD,VXODIG,XMODE)
TRANSCEIVER (VRXHF)
MSM (DVDDD_EMI) , eMMC (VDDCA)
IC WIFI (AVDD_WBT)
BACK UP BATT
MAIN_CAMERA , VT CAMERA
RF_AMP (VDD) , IC WIFI (AVDO)
MSM (AVDD_DAC,VTCXO) , SEPERATOR (VDD) ,TRANSCEIVER (VTCKO,V)
PAM (VCC)
Memory Type : DDR2 ¡æ DDR3
Note 3
AUDIO
PMIC
C4133
1
2
10U
C4136
1
2
1U
4.7U
2
1
C4138
C4139
1
2
4.7U
4.7U
2
1
C4137
4.7U
2
1
C4150