LG KG920 CIRCUIT DIAGRAM
- 141 -
VBAT
PWR
URXD
UTXD
3G 2.5G
GND
RX
TX
UFLS
ON_SW
LGIC(42)-A-5505-10:01
2
3
3
LG Electronics Inc.
Iss.
UART BOOT
03/11
B
1
Approved
USB BOOT EXT CLOCK
USB BOOT INT CLOCK
H
CLOSE TO AD6535
5
Checked
L
C
B
H
NAME
LG Electronics In
c.
D
E
GPIO_56
D
L
H
DRAWING
GPIO_55
10
DRAWING
Sign & Name
(1%)
L
Sheet/Sheets
MODEL
(1%)
2006/
1/7
2
76
Name
JTAG
Designer
A
Notice No.
9
H
A
Date
GUIDE HOLE
Date
Section
C
L
NO.
BYPASS
BOOT MODE
SANG KYU SONG
5
(1%)
1 84
(1608)
4
C146
39p
VER_1.0
DBB/ABB
KG920(MAIN)
1uC117
VINT
E3
VMEM1
VMEM2
H1
M3
VMEM3T3VMEM4
VMEM5
T6
VSIM
N11
A9
VSSRTC
P10
VSSUSB
F8
H6
VCC3
VCC4
J11
L9
VCC5M6VCC6
M14
VCC7
P14
VCC8
VDDRTC
A8
V8
VDDUSB
D16
VEXT1-1
VEXT1-2
F12
F14
VEXT1-3
VEXT1-4
K11
VEXT1-5
R15
T12
VEXT1-6
C11
VEXT2-1
A5
NROMCS1
NWAIT
V2
NWE
R4
E9
OSCIN
OSCOUT
C9
F9
PWRON
SIMCLK
T10
V10
SIMDATAIO
N18
USC0
USC1
N14
USC2
M16
USC3
N13
M18
USC4
USC5
L16
USC6
M13
C12
VCC1
VCC2
C13
A13
KEYPADCOL4
KEYPADROW0
D15
KEYPADROW1
E14
A16
KEYPADROW2
E13
KEYPADROW3
A15
KEYPADROW4
NADV
T4
V6
NAUXCS1
NGPCS1
T5
U1
NHWR
NLWR
V1
NRAMCS1
V5
P8
NRAMCS2
NRD
P5
NRESET
V3
N8
GPO_20
P18
GPO_21
GPO_22_KEY_BACKLIGHT
G13
D18
GPO_23_LCD_BACKLIGHT
A6
GPO_29_ABBRESET
T13
GPO_3
GPO_4
T14
GPO_5_ARSM
A7
GPO_6_ATSM
C7
T15
GPO_7
V16
GPO_8
GPO_9
V17
T11
JTAGEN
F13
KEYPADCOL0
KEYPADCOL1
A14
C14
KEYPADCOL2
KEYPADCOL3
A10E11
GPIO_55
GPIO_56
A12
GPIO_6
J18
H16
GPIO_7
GPIO_8
J14
GPIO_9
H18
GPO_0_RXON
C8
V18
GPO_10
GPO_11
R16
GPO_16
T16
GPO_17
T18
P16
GPO_18
GPO_19
U18
GPO_1_TXON
E8
V14
GPO_2
R18
C15
GPIO_4
K14
GPIO_40
K5
N9
GPIO_42_NMAIN_LCD_CS
GPIO_43_NSUB_LCD_CS
V7
P9
GPIO_44_NROMCS2
T7
GPIO_45
T8
GPIO_46
P11
GPIO_47_SIM_VSEL
A4
GPIO_48_ABB_IRQ
GPIO_49
J10
J16
GPIO_5
E10
GPIO_50
GPIO_51
H10
GPIO_52
C10
F10
GPIO_53
GPIO_54
GPIO_18_TCK
GPIO_19_TMS
V12
L14
GPIO_1_IRDA_RX
P12
GPIO_20_TDI
GPIO_21_TDO
V13
GPIO_22
A11
V9
GPIO_23_SIM_RESET
V11
GPIO_24_SIM_EN
GPIO_2_NIRDA_EN
K16
K18
GPIO_3
GPIO_33_DEBUG_RX
E16
C18
GPIO_34_DEBUG_TX
GPIO_35
B18
GPIO_36
A18
C16
GPIO_37
A17
GPIO_38
GPIO_39
GND3
GND4
F11
H5
GND5
GND6
H11
H13
GND7K8GND8
K10
GND9
L18
GPIO_0_IRDA_TX
G16
GPIO_10
J13
GPIO_11
GPIO_12
G18
GPIO_13
H14
G14
GPIO_14
F16
GPIO_15
GPIO_16
F18
GPIO_17
E18
L11
N3
N1
DATA7
DATA8
P3
N6
DATA9
DMINUS
L10
T9
DPLUS
GND1
D4
GND10
K13
GND11
L13
GND12M5GND13
N5
N12
GND14
GND15
N16
P7
GND16
V15
GND17
GND2
E12
F7
E7
CSDI
C6
E6
CSDO
CSFS
J9
L3
DATA0
DATA1
L6
DATA10
P1
R3
DATA11
R1
DATA12
DATA13
N7
DATA14
P6
DATA15
T1
DATA2
L1
DATA3
L8
DATA4
M1
DATA5
L5
DATA6
F5
ADD6
G6
E1
ADD7
G5
ADD8
ADD9
F3
ASDI
B1
ASDO
A1
ASFS
C3
BSDI
A2
C5
BSDO
C4
BSIFS
A3
BSOFS
V4
BURSTCLK
N10
CLKIN
P13
CLKON
CLKOUT
H9
CLKOUT_GATE
F1
ADD12
G3
G1
ADD13
ADD14
H3
ADD15
J6
ADD16
J8
ADD17
J3
ADD18
J5
J1
ADD19
D3
ADD2
K6
ADD20
K3
ADD21
ADD22
K1
K9
ADD23
ADD3
F6
D1
ADD4
ADD5
2V8_VMEM
AD6527ABCZ-USB
U101
C1
ADD0
E5
ADD1
H8
ADD10
ADD11
0.1u
C101
_LBS
C105
47n
0.1u
C132
OJ101
ROM_CS2
47p
C123
VCHARGE
2V8_VEXT
0.1u
C109
BAT100
47n
TDO_0
C106
C151
0.1u
C141
39p
VBAT
C143
1V8_VRTC
1u
C114
ROM_CS1
0.1u
47n
C133
C110
22u
47n
C128
4.7
R111
1.2MR102
WR_N
VUSB
C130 1u
M3M_CS
R109
4.7
1V8_VCORE
47n
C104
47n
C108
C129
R2
VMEMSEL
R3
N16
VMIC
VRTC
T7
VRTCIN
R6
T6
VSIM
VUSB
E15
VUSBIN
F15
D16
VVCXO
47n
VBAT2-2A3VBAT3-1B3VBAT3-2
R5
VBAT4R4VBAT5
VBATSENSE
B8
VCHG
A5
P1
VCORE1
VCORE2
N1
VCOREIN
N2
VCXOEN
A2
A4
VEXT1
VEXT2
B4
VMEM1
T3
T2
VMEM2
VMEMIN1P2VMEMIN2
SPWR1
T10
SPWR2
B2
TCK
A1
TDI
C1
TDO
TEMP1
B9
TEMP2
A8
B1
TMS
TXON
K2
VABB
H16
F16
VAPP
VAPPGATE
E16
VBACK
T4
T5
VBACKSEL
C15
VBAT1
G15
VBAT2-1
H15
J2
G16
NC_G16_VPLL_TE
NC_R12
R12
B12
PA
A14
QN
QP
A15
B15
REF
REFBB
A10
D15
REFCHG
C16
REFEN
B11
REFOUT
A16
REFPWR
RESET
T1
RXON
K1
T8
SGND1R8SGND2
R10
DGND
GATEDRIVE
A6
C2
GPI
T15
IBIAS
A13
IN
D1
INT
IP
A12
A7
ISENSE
T14
KEYON
T13
KEYOUT
LDOEN
T12
LGND
N15
L16
LIGHT1
LIGHT2
M15
M16
LIGHT3
MCLK
L1
MCLKEN
F2
J1
ASM
AUXADC1
B10
AUXADC2
A9
BATTYPE
B6
BSDI
G2
BSDO
E2
BSIFS
F1
G1
BSOFS
CHGDACREF
B7
CHGOSC
B5
R1
CRST
CSDI
H2
H1
CSDO
L2
CSFS
DBBON
R7
M2
AIN1N
P16
AIN1P
AIN2N
R15
AIN2P
P15
AIN3L
R13
R14
AIN3R
AOUT1N
K15
AOUT1P
J15
AOUT2N1
T9
AOUT2N2
R9
AOUT2P1
R11
AOUT2P2
T11
AOUT3L
J16
AOUT3R
K16
E1
ASDI
ASDO
D2
ASFS
M5
M6
AGND033
AGND034
M7
M10
AGND035
AGND036
M11
AGND037
M12
E7
AGND04
E10
AGND05
E11
AGND06
E12
AGND07F5AGND08
AGND09
F6
B16
AGND1
A11
AGND2
AGND3
L15
T16
AGND4
R16
AGND018
AGND019
G12
E5
AGND02
K5
AGND020
AGND021
K6
K7
AGND022
K10
AGND023
K11
AGND024
K12
AGND025L5AGND026L6AGND027
AGND028
L7
L10
AGND029
AGND03
E6
AGND030
L11
L12
AGND031
AGND032
AD6535ABCZ
U100
M1
ABBRESET
B14
AFCDAC
B13
AGND01
F7
AGND010
F10
AGND011
F11
AGND012
AGND013
F12
G5
AGND014
AGND015
G6
G7
AGND016
AGND017
G10
G11
C121 1u
39p
C139
1u
C112
2V75_VVCXO
2V5_VMIC
1uC126
VUSB
39p
C142
C149
39p
1V8_VRTC
DATA00
RD_N
C100
0.1u
R106
VBAT
10M
0.068u
C124
24K
R107
C145
39p
CTS
12
DSR
10
1
GND
NC1
4
7
NC2
NC3
8
9
NC4
5
ON_SW
11
RTS
RX
2
3
TX
VBAT
6
330K
R110
UART
3
1
2
KDR331V
D100
C115
1u
10K
R113
C119 1u
39p
C148
0.1u
C103
C118 0.1u
2V85_VSIM
1uC138
VBAT
C147
39p
1u
C127
1u
2V8_VMEM
VBAT
C144
C116
39p
R100 10K
VBAT
200
R101
C134
NA
2V8_VMEM
0.1u
C107
_UBS
ADD02
ADD03
R103
100K
1uC137
C140
2V8_VMEM
39p
C102
0.1u
VUSB
22p
C113
0R115
82K
VUSBIN
2V85_VSIM
OJ100
R108
C125
2.2uC120
1u
32.768KHz
12
3
4
100
MC-146_7pFX100
R104
0.1u
C111
R112
10K
1u
RAM_CS1
C122
MM_CS
ADD00
MM_INT
1V8_VCORE
RAM_CS2
RPWRON
39p
C150
ADD01
C135 1000p
NA
C136
2V85_SPWR
NAR105
2V75_VABB
2V8_VEXT
0.01uC131
ADD12
ADD11
ADD10
ADD01
ADD00
HP_EN
BATT_TEMP
ADD06
ADD05
ADD04
ADD03
ADD23
ADD22
ADD21
ADD20
ADD02
ADD19
ADD18
ADD17
ADD16
ADD15
ADD14
ADD13
DATA12
DATA11
DATA10
DATA01
DATA00
CLKON
BURSTCLK
ADD09
ADD08
ADD07
MM_INT
CHG_EN
USB+
USB-
DATA09
DATA08
DATA07
DATA06
DATA05
DATA04
DATA03
DATA02
DATA15
DATA14
DATA13
BT_EN
MM_CLKON
SIM_RST
TDO_1
TDI
MM_RESET
TMSTCK
CAM_COVER_SEN
CHG_STAT
LCD_RESET
SPK_PHONE_PWREN
CHG_DET
MIDI_RST
DSR
ABB_IRQ
SPK_SRC_SEL
GPCS2
ROM_CS2
M3M_CS
MM_CS
HP_SRC_SEL
M3M_RST
SND_SRC_SEL
KEY_COL5
MIDI_IRQ
M3M_IRQ
KEY_ROW5
DEBUG_TX
DEBUG_RX
VIBRATOR
S_CLK
S_DATA
S_EN
PCM_EN
PA_BAND
PA_EN
ANT_SW2
RF_RST
JACK_DETECT
BT_RST
USB_DET
SWING1
SWING0
KEY_ROW0
KEY_COL4
KEY_COL3
KEY_COL2
KEY_COL1
KEY_COL0
JTAGEN
ANT_SW1
USB_PATH_SEL
RF_PWR_DWN
LOUD_SPK_EN
LCD_BACKLIGHT
KEY_BACKLIGHT
WR_N
_WAIT
ROM_CS1
_RESET
RD_N
RAM_CS2
RAM_CS1
_LBS
_UBS
GPCS1
MIDI_CS
_ADV
KEY_ROW4
KEY_ROW3
KEY_ROW2
KEY_ROW1
SIM_CLK
SIM_DATA
USC0
USC_1
USC_2
USC3
USC4
USC5
USC6
USC5
DSR
USC1
SPK_P_SM
26MHZ
M3M_FLASHMD
PWRON
RCV_P
RCV_N
PWRON
RPWRON
USC4
RPWRON
USC2
IP
IN
QP
QN
AFC
TX_RAMP
AUX_OUT_L
_RESET
MIC_IN-
MIC_IN+
AUX_MIC_N
AUX_MIC_P
AUX_OUT_R
RPWRON
POWERKEY
KEY_ROW0
TDO_0
CLKON
7. CIRCUIT DIAGRAM
- 142 -
C
10
E
11
H
(GPIO_12)
512Mbits FLASH/128Mbits pSRAM
Section
12
LG Electronics Inc.
(GPIO_37)
4
6
D
G
(AUXCS1)
12
Sheet/Sheets
5 7
A
G
NAME
(GPIO_16)
F
8
Notice No.
F
DRAWING
C
Iss.
03/11
H
5 9
DRAWING
9
6
SANG KYU SONG
11
D
64POLY MIDI
8
2
(GPIO_0)
1
LG Electronics Inc.
(1%)
Date
Checked
LGIC(42)-A-5505-10:01
KG920(MAIN)
MEMORY/MIDI
VER_1.0
2/7
Designer
Sign & Name
MODEL
2
10
Approved
NO.
BB
1 4
A
Charging IC
Name
E
Date
3
3
2006/
7
C236
1u
300R212
CUS02
68K
R201
D201
C239
27p
1u
1Y
B2
2A
D2
C2
2BC12Y
D1
GND
A2
VCC
2V8_VMEM
C235
U202
SN74AUC2G08YZPR
A1
1A
1B
B1
100K
R217
R203
100K
C211
1000p
22n
C204
ISL6299U206
BAT
10
CRDL
1
8
GND
ICDL
9
6
IMIN
PGND
11
2
USB
USBON
7
4
_CHG
_EN
5
_PPR
3
_F2_OE
H8
_F3_CE
K3
_F_RST
F4
F5
_F_WE
E4
_F_WP
D6
_P1_CS
K2
_P2_CS
_R_LB
C2
_R_OE
H1
F3
_R_UB
_R_WE
D5
J1
_S_CS1
VCHARGE
VCCQ0
L3
VCCQ1
K7
VCCQ2
J8
VSS0
L8
L7
VSS1
L6
VSS2
L5
VSS3
VSS4
L2
VSS5
L1
VSS6
C4
B4
VSS7
G7
WAIT
E5
_ADV
K1
_F1_CE
J2
_F1_OE
_F2_CE
G8
A2
DU1
DU2
A7
A8
DU3
DU4
M1
M2
DU5M7DU6M8DU7
F1_VCC1
B5
L4
F1_VCC2
F2_VCC1
B6
K6
F2_VCC2
D4
F_VPP
K8
P_MODE_CRE
P_VCC
K5
C5
S_CS2
K4
S_VCC
H3
D1
G4
D10
J4
D11
D12
H5
D13
G6
H6
D14
J7
D15
G3
D2
D3
H4
D4
J5
D5
G5
D6
J6
D7
H7
D8
G2
J3
D9
A1
DU0
E1
A2
A20
E6
B7
A21
C7
A22
C3
A23
A24
D3
A25
E3
A3
D1
A4
B1
A5
C1
F2
A6
E2
A7
F6
A8
D7
A9
C6
CLK
H2
D0
PF38F4455LLZBQ0
U205 A0
G1
A1
F1
E7
A10
B8
A11
A12
C8
D8
A13
F7
A14
A15
E8
A16
F8
A17
D2
A18
B2
A19
B3
C202
2V8_VEXT
0.1u
1000p
C224
27p
C206
C238
1u
C228
FB201
27p
0.1u
C237
1u
C203
1u
C225
0
R221
2V8_VMEM
0.1u
C216
10u
C209
R222
0
R220
0
VUSBIN
27KR216
120p
BGND
11
4
BYP
EN1
2
EN2
3
6
GND
5
NC1
NC2
7
8
NC3
1
VIN10VOUT1
VOUT2
9
C201
U201 MIC2211-GMYML
2V8_VMEM
R204
30K
0.1u
C219
10KR219
0
R215
C222
1u
C215
0.1u
1V8_VCORE
33K
R205
C231
100K
R202
MIDI_CS
0.1u
3.3K
2V8_MIDI
R208
1u
C232
0.1u
C210
R209
NA
C227
0.1u
NA
C212
0
R211
0.1u
C233
2V8_MIDI
VUSBIN
1u
C223
C229
NA
C226
MIDI_IRQ
1u
1u
C205
C220
0.1u
0.01u
E8
TXOUT
VREF
F7
_CS
H3
_IRQ
D4
H4
_RD
_RST
B4
_WR
J2
2V8_VEXT
C207
B2
MTR
NC1
A1
A8
NC2J1NC3
H5
PLLC
RXIN
C6
SDI
D1
B7
SPOUT1L
SPOUT1R
J8
B8
SPOUT2L
H8
SPOUT2R
SPVDDL
A6
J6
SPVDDR
A7
SPVSSL
SPVSSR1
H7
J7
SPVSSR2
B6
EXTIN
EXTOUT
D7
D6
GPIO0
C5
GPIO1
GPIO2
C1
GPIO3
C4
F6
HPC
C8
HPOUTL
C7
HPOUTR
HPVSS
D8
IOVDD1
H1
B3
IOVDD2
C2
LDE1_GPIO4
LED0
C3
LED2_GPIO5
B1
D3
LRCK
D5
F2
E3
D6
D7
E2
DVDD1J4DVDD2
A2
F1
DVDD3
J3
DVSS1
DVSS2A3DVSS3
E1
EQ1L
B5
J5
EQ1R
A4
EQ2L
EQ2R
G6
EQ3L
A5
H6
EQ3R
G7
EXC
YMU787
G4
A0
AVDD
G8
F8
AVSS
E6
BBL
BBR
E7
D2
BLCK
CLKI
G5
H2
D0
D1
G3
G2
D2
D3
F3
G1
D4
VBAT
U204
C234
0.1u
0
C217
0.1u
R210
0R206
10KR214
C221
1V8_MIDI
22u
R213
100K
1V8_MIDI
1u
C230
0.1u
C218
0R207
C208
1u
GND
C1
A1
B1
C2
VCC
A2
VBAT
VBAT
U203
SN74AUC1G08YZPR
47p
C214
C213
100K
R218
47p
CHG_STAT
MIDI_SPK+
SPK_P_SM
MIDI_SPK-
CHG_EN
MEM_CS2
MEM_CS1
GPCS1
GPCS1
RAM_CS1
RAM_CS2
GPCS2
ROM_CS1
BURSTCLK
MIDI_HPLOUT
DATA09
DATA08
DATA07
DATA06
DATA05
DATA04
DATA03
DATA02
DATA01
DATA00
MEM_CS2
MEM_CS1
ADD24
ROM_CS1
ROM_CS2
ADD09
ADD08
ADD07
ADD06
ADD05
ADD04
ADD03
ADD02
ADD01
DATA14
DATA13
DATA12
DATA11
DATA10
_WAIT
_ADV
ADD24
ADD23
ADD22
ADD21
ADD20
ADD19
ADD18
ADD17
ADD16
ADD15
ADD14
ADD13
ADD12
ADD11
ADD10
DATA08
WR_N
MIDI_RST
RD_N
MIDI_CS
ADD00
MIDI_IRQ
_LBS
_UBS
WR_N
26MHZ
_RESET
MIDI_HPROUT
DATA15
RD_N
DATA15
DATA14
DATA13
DATA12
DATA11
DATA10
DATA09
7. CIRCUIT DIAGRAM
- 143 -
E
TCK(9)
8
121 8
Notice No.
(GPIO_13)
SWING1
G
HIGH
B
3
H
TCK
DRAWING
JTAG PIN
G
LG Electronics Inc.
6
BLUETOOTH
DRAWING
0
TDO1(18)
TDI
11
180
03/11
D
4
A
LOW
_RESET(2)
TDI(11)
7
4
Name
C
A
VTREF
C
12
(GPIO_11)
2006/
EMULATOR
(GPIO_8)
Sign & Name
Approved
LG Electronics Inc.
10
(GPIO_16)
2
VIBRATOR
B
TDO
LGIC(42)-A-5505-10:01
TMS(7)
NTRST
E
D
F
2V8(24)
11
F
FLIP SWITCH
12
SIM CONNECTOR
NAME
(GPIO_6)
LOW
Date
Designer
MODEL
Checked
Date
H
3/7
VER_1.0
BLUETOOTH/IO CONNECTOR
KG920(MAIN)
5 9
SWING0
6
SANG KYU SONG
NSRST
(GPIO_23)
(GPO_18)
Iss.
(GPIO_2)
Section
NO.
I/O CONNECTOR INTERFACE
Sheet/Sheets
9
TMS
10
JTAGEN(1)
NA
3
HIGH
(GPIO_5)
7
5
C3
COM1
A3
COM2
B1
GND
C2
IN1
A2
IN2
NC1
C1
A1
NC2
C4
NO1
A4
NO2
B4
V+
GND1GND2
INOUT
U302
MAX4717EBC-T
ICVFP10181E301PR FL300
10K
R333
47R320
GND
OUT
VDD
VA300
EVL5M02200
VBAT
EM-6681-T3
U306
R328
30K
VUSBIN
R314 47
C309
39p
VCHARGE
1
2
3
4
5
VUSBIN
2V8_VMEM
R341 1M
CN301
C317
0.1u
0
R324
100K
R340
R339
1.5K
C324
0.01u
OUT302OUT301
VUSBIN
22p
C327
2V85_VSIM
47R330
39p
C313
R336
100K
1
3
4
5
VCC
2V8_VEXT
TC7SH08FS
U301
GND
2
1.5K
R332
100KR303
220n
NA
R313
C325
R327 47
47R329
39p
C314
2V8_VEXT
2V8_VBT
1SS302-T5L_F_H
D300
R309 47
BGND62GND
NC51STBY
3
VIN VOUT
4
BH28FB1WHFV
U300
9
10
GND5
IO
6
2
RST
1
VCC
VPP
5
R307 100K
J300
CLK
3
4
GND1
GND2
7
8
GND3GND4
NA
R312
R301 100K
R334
100K
GND
OUT
VDD
0.1u
C304
EM-6681-T3
U305
R325
C322
30K
1uF
R318 47
4.7u
C316
2V8_VEXT
100KR306
19
2
20
21
22
23
24
25
26
3
4
5
6
7
8
9
1
10
11
12
13
14
15
16
17
18
COM1
C3
COM2
A3
GND
B1
IN1
C2
IN2
A2
NC1
C1
NC2
A1
NO1
C4
NO2
A4
V+
B4
CN300
MAX4717EBC-T
U303
100KR304
1u
C312
15p
C308
10u
C318
2V85_VSIM
2V85_VSIM
C306
C326
NA
2.2u
C328
1000p
DEBUG_TX
DEBUG_RX
EVL5M02200
VA303
R315 47
2V8_VEXT
100K
R335
0
R308
R331 47
20K
R337
R305 100K
ANT300
FEED
NC1
NC2
R326 47
R316 47
2V8_VEXT
R321 47
15
R338
47R310
VBAT
2.2u
C300
R302 100K
330
R311
0.1u
C303
RA301
246
8
135
7
2V8_VBT
0
1uC315
VBAT
C311
27p
2V8_VBT
VA301
EVL5M02200
0.01u
C323
10R319
R323
C302
47
4.7u
3p
47R317
C319
PIO5
16
RESETB
13
SPI_CLK
14
SPI_CSB
SPI_MISO
15
12
SPI_MOSI
26
UART_CTS
UART_RTS
23
24
UART_RX
UART_TX
27
22
VDD_1_8V
VDD_DIG
21
VDD_VREGIN
3
ANT
5
4
GND1
6
GND2
GND3
11
GND4
25
28
NC
20
PCM_CLK
19
PCM_IN
PCM_OUT
17
18
PCM_SYNC
PIO0
1
2
PIO1
PIO2
7
8
PIO3
PIO4
9
10
LBMA-2C67B2M300
15p
2V8_VEXT
C301
47R322
C305
NA
1u
C321
C310
10u
R342
0
2.2u
C307
2SC5585
Q300
246
8
135
7
RA300
0
10p
DEBUG_RX
SWING0 SWING1
C320
MOTOR-
SIM_RST
SIM_CLKSIM_DATA
USB_PATH_SEL
VIBRATOR
USB-
USB+
MM_USB-
MM_USB+
PCM_TX
USC0
BATT_TEMP
CHG_DET
PCM_SYNC8
USC3
TDO_1
TDI
TCK
TMS
JTAGEN
_RESET
USC_2
USC_1
PCM_EN
USC0
PCM_TX
PCM_SYNC8
BT_RST
PCM_RX
DEBUG_RX
DEBUG_TX
BT_EN
USC2
USC1
PCM_TX
PCM_RX
DEBUG_TX
RPWRON
DSR
USC3
USC5
USC4
USC2
USC1
USC6
7. CIRCUIT DIAGRAM
- 144 -
NO.
9
11
6
Date
NC PORT
MAIN MICROPHONE
Checked
4
(GPIO_39)
(GPIO_9)
7
03/11
SPEAKER AMPLIFIER
Notice No.
CONNECTED PORT
C
G
LGIC(42)-A-5505-10:01
9
Approved
G
AUDIO PATH SWITCH
12
8
1
(MP3_PLAY/PAUSE)
SPEAKER PHONE AMPLIFIER POWER
(GPIO_46)
B
MODEL
Section
2
Iss.
E
DRAWING
(GPO_8)
6
DRAWING
HEADSET JACK
C
4
NAME
(HOOK_DETECT)
Date
LG Electronics Inc.
SANG KYU SONG
5
8
11
2 10
Sheet/Sheets
(MP3_FF)
F
HIGH
(MM_GPIO_1)
(GPIO_17)
10
Name
F
A
Designer
3
E
D
LOW
H
(MP3_REW)
NO PORT
LG Electronics Inc.
A
B
1
1u
KG920(MAIN)
AUDIO PART
VER_1.0
4/7
12
Sign & Name
75
(GPIO_40)
3
2006/
H
C431
C416
39p
0.01uC411
EVL5M02200
VA404
2.2K
R427
100
R422
10u
C430
C412 0.01u
100K
R424
NA
R433
680R414
2V8_MM
R415
0
1u
C428
80.6K
R416
33uH
L401
39p
C420
VA401
EVL5M02200
R417
1K
NA
R434
2V5_VMIC
4.7R408
VBAT
C401
10u
C417
33u
100R405
C1
NO2
VCC
B1
EVLC18S02015
VA409
A2
COM1
COM2
C2
EP1
B2
B3
EP2
B4
GND
A4
IN1
IN2
C4
A3
NC1
NC2
C3
A1
NO1
VA410
EVLC18S02015
MAX4764EBC+T U701
C409
47p
100R413
C405 100u
VA403
EVL5M02200
2V8_VMEM
14
2
3
4
5
6
7
8
9
CN401
1
10
11
12
13
C3
COM1
A3
COM2
B1
GND
C2
IN1
A2
IN2
C1
NC1
A1
NC2
C4
NO1
A4
NO2
B4
V+
100R410
U404
NLAS4684FCT1G
R406 4.7
C418
1u
39p
C402
100R411
VBAT
C423
0.1u
C413
39p
10u
C421C419
1u
1K
R401
NLAS4684FCT1G
U405
COM1
C3
COM2
A3
GND
B1
IN1
C2
IN2
A2
NC1
C1
NC2
A1
NO1
C4
NO2
A4
V+
B4
VBAT
R409 100
27p
C427
R432 0
EVLC18S02015
VA407
R426
100
NLAS4684FCT1G
U403
COM1
C3
COM2
A3
GND
B1
IN1
C2
IN2
A2
NC1
C1
NC2
A1
NO1
C4
NO2
A4
V+
B4
0.1uC403
0
R429
NC
B4
VDD1
C4
VDD2
D4
VO+
VO-
A4
A1
_SD
GND1
A2
A3
GND2
GND3
B3
C2
GND4
GND5
C3
D2
GND6
GND7
D3
IN+
C1
IN-
D1
B1
C432
U401 TPA2005D1ZQYR
1u
1u
C434
U402 BH2JNB1WHFV
BGND6GND
2
5
NC1STBY
VIN
34
VOUT
R430
0
R421
0
33uH
L402
NA
2V8_MM
C425
39p
C422
2.2K
C410
R420
47p
R402
100K
100R404
C404
2V8_MM
VA406
EVLC18S02015
100u
47p
C407 C408
1u
VA408
EVLC18S02015
80.6K
R419
100R431
C424
0
R423
2V85_SPWR
22n
0
R418
39K
R425
VA405
EVL5M02200
0.01u
C429
R403
2.2K
R428
0
EVL5M02200
VA402
C406
1u
C415
NANA
C414
39p
C426
2V5_VMIC
2.2K
R412
C433
1u
MIC_IN+
MIC_IN-
HP_EN
MIDI_SPK-
SND_SPK+
SND_SPK-
SPK_SRC_SEL
SPK_PHONE_PWREN
MIC_P
MIC_N
SND_HPROUT
SND_HPLOUT
SND_HPLOUT
SND_SRC_SEL
HP_LOUT
HP_ROUT
HP_SRC_SEL
AUX_OUT_L
AUX_OUT_R
SND_HPLOUT
SND_HPROUT
SPK+
SPK-
MIDI_SPK+
SND_SPK-
SND_HPROUT
LOUD_SPK_EN
SND_SPK+
MIDI_HPROUT
CODEC_HPROUT
CODEC_HPLOUT
MIDI_HPLOUT
KEY_ROW0
KEY_COL5
KEY_COL4
KEY_COL3
KEY_COL2
HP_LOUT
HP_ROUT
JACK_DETECT
AUX_MIC_N
AUX_MIC_P
7. CIRCUIT DIAGRAM
- 145 -
Sign & Name
11
(AFCDAC)
B
12
03/11
C
(GPO_11)
3dB ATTEN
G
10
Date
D
E
H
LG Electronics Inc.
62
9
Notice No.
(GPO_9)
6 84
LGIC(42)-A-5505-10:01
1
1 4
2
DRAWING
DRAWING
5
Date
Name
10
Checked
NAME
H
E
LG Electronics Inc.
12
B
F
9
A
(GPO_20)
(GPO_19)
8
MODEL
A
NO.
Section
Approved
G
H. LEE
7
7
(GPO_17)
(GPO_4)
(PA)
5
Iss.
3
2006/
2dB ATTEN
(GPO_21)
(GPO_10)
(GPO_16)
Sheet/Sheets
KG920(MAIN)
RF PART
VER_1.0
5/7
3
Designer
F
11
C543
4.7u
430
R512
C541
R513
430
4
VCONT
1
27p
26MHz
X501
2
GND
3
OUT
VCC
10K
R515
39p
R508
C526
C504
300
27p
0.1u
C521
6.8nH
L504
1000p
C537
R521
100
C532
27p
C531
22p
27p
R503
0
C516
1.8p
C527
L502
1.8nH
L501
18nH
R511
NA
C544
27p
27p
C552
G1
G2
RF
TP502
KMS-507
SW501
ANT
GSM_IN
11
GSM_OUT
21
PGND
19
RSVD_GND
VAPC
20
17
VBATT2VCC1A6VCC1B
TP501
BS
1
DCS_PCS_IN
315
DCS_PCS_OUT
ENABLE
18
GND15GND2
7
8
GND3
GND4
9
10
GND5
GND6
12
13
GND7
GND814GND9
16
4
2
4
5
VCC
SKY77328
U501
NC7SV00P5X_NLU503
3
GND
1
R514
0
C507
VBAT
NA
1000p
C540
C501
22u
10p
C505
0
R519
1.5p
C539
1V8_VCORE
L505
27nH
R518
NA
10p
C512
C542
18
R507
NA
33p
C509
C530
27p
2V8_VEXT
R510
12
C522
100p
L503
1.8p
5.6nH
R505
4.7p
C525
C506
1000p
25
XOUT
8
XTAL131XTAL2
30
_PDN
9
10
_RESET
2
_SEN
1000p
C508
19
RFIEN
22
RFIEP
21
RFIPN
18
RFIPP
17
16
RFOH
RFOL
15
SCLK
1
3
SDIO
VDD1
12
13
VDD2VDD3
28
29
VDD4
11
VIO
26
XDIV32XEN
XMODE
SI4210D
U502
27
AFC
BIN
6
BIP
7
BQN
4
BQP
5
GND
14
PGND
33
RFIAN
24
RFIAP
23
RFIDN
20
RFIDP
15K
R523
C548
1000p
1.5p
C533
U504
BYP43EN
2
GND
IN1OUT
5
C551
MIC5255-2.85BM5
2V75_VVCXO
27p
C545
27p
R522
2V85_RF
1V8_CLK
U505 BH18LB1WHFV
BGND6GND
2
5
NC1STBY
VIN3VOUT
4
0
0
R501
1uF
VBAT
R520
1M
C546
2V85_RF
1.5p
C536
1.5p
C529
C517
NA
C524
270p
TP503
C510
0.5p
C528
270p
0.01u
C503
2.2u
C550
C511
C519
NA
27p
GND9
20
PCS_RX1
14
15
PCS_RX2
3
VC_DCSPCS
9
VC_EGSM
1V8_CLK
C538
0.1u
13
DCS_RX2
EGSM_RX1
10
11
EGSM_RX2
EGSM_TX
8
GND1
2
21
GND10
GND11
22
23
GND12
GND13
24
GND2
4
6
GND3
7
GND4
GND5
16
17
GND6
GND7
18
19
GND8
HWXQ511
FL501
1
ANT
5
DCSPCS_TX
DCS_RX1
12
0.01u
C547
R517
0
0
R516
0.1u
C535
C555
15p
18p
C502
0
R504
C549
2.2u
2V85_RF
C534
22p
C520
22p
0.01u
C513
C518
NA
39p
1uF
C553
C523
27p
C515
300
0.01u
R509
VBAT
C514
0
R502
AFC
CLKON
CLKON
CLKON
26MHZ
RF_RST
PA_BAND
TX_RAMP
PA_EN
S_EN
S_CLK
IN
IP
QN
QP
RF_PWR_DWN
ANT_SW1
ANT_SW2
S_DATA
7. CIRCUIT DIAGRAM
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