Table of Contents
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7. CIRCUIT DIAGRAM
1
2
V_IO
2V8_VBT
C304
A
C303
1u
0.1u
BLUETOOTH CKTs
D4
DBB_BT_INT
GPIO_0
D3
BT_DBB_INT
GPIO_1
E3
GPIO_2
C2
GPIO_3
D2
GPIO_4
TP301
C5
BT_MAIN_CLK_EN
GPIO_5
C4
GPIO_6
C3
GPIO_7
B
D5
UART_RTS_BT
UART_CTS_N
U301
E4
UART_RX_BT
UART_TXD
EWSMNBUXX
E5
UART_CTS_BT
UART_RTS_N
F6
UART_TX_BT
UART_RXD
B6
TP303
PCM_CLK_BT
PCM_CLK
TP304
C6
PCM_TX_BT
PCM_IN
TP305
D6
PCM_RX_BT
PCM_OUT
TP306
E6
PCM_SYNC_BT
PCM_SYNC
A4
HUSB_DP
A5
HUSB_DN
C
2V8_VBT
VBAT
U305
TK63128BCB-G
A1
B1
GND
VOUT
A2
B2
BT_LDO_EN
VCONT
VIN
C322
C323
D
1u
1u
E
1
2
LGIC(42)-A-5505-10:01
3
4
5
C305
C306
1u
0.1u
C307
C308
C309
C310
1u
1u
1u
1u
FL301
DEA202484HT-8002A1
G1
G2
ANT301
R303
R301
B1
RF
IN
OUT
FEEDING
2p
0
G3
G4
R305
NC
G3
2.7nH
R306
NC
2V8_VBT
NA
E2
SCL
F5
SDA
F2
VREG_CTL
TP302
F3
RST_N
BT_RESET
A2
XTALP
BT_26MHZ
2V8_VBT
C314
F1
C313
1000p
LPOIN
CLK32K_OUT
1000p
B5
R308
TM0
B4
R311
47K
TM1
B3
R312
NA
TM2
NA
D1
RFIOP
C514
3p
V_IO
U306
NC7SZ32P5X
5
1
VCC
RF_EN
A
2
BT_MAIN_CLK_EN
B
4
Y
3
RF_LDO_EN
GND
C324
C325
1000p
0.1u
Iss.
3
4
5
6
7
8
MEMORY 256Mb NOR & 128 Mb pSRAM
D(0:15)
U302
S71PL254JD0BFWTB0
D(0)
J3
G2
A(1)
DQ0
A0
D(1)
G4
F2
A(2)
DQ1
A1
D(2)
K4
E2
A(3)
DQ2
A2
D(3)
H5
D2
A(4)
DQ3
A3
D(4)
H6
F3
A(5)
DQ4
A4
D(5)
K7
E3
A(6)
DQ5
A5
D(6)
A(7)
G7
D3
DQ6
A6
V_FLASH
D(7)
J8
C3
A(8)
DQ7
A7
D(8)
K3
C7
A(9)
DQ8
A8
D(9)
H4
E7
A(10)
DQ9
A9
D(10)
J4
F7
A(11)
DQ10
A10
D(11)
K5
C8
A(12)
DQ11
A11
D(12)
J7
D8
A(13)
DQ12
A12
D(13)
H7
E8
A(14)
DQ13
A13
D(14)
K8
F8
A(15)
DQ14
A14
D(15)
H8
D9
A(16)
DQ15
A15
A(17)
G9
A16
J5
F4
A(18)
VCCF1
A17
L5
E4
A(19)
VCCF2
A18
D7
A(20)
A19
J6
E6
A(21)
VCCS
A20
E9
A(22)
A21
F9
A(23)
C399
C312
A22
G3
V_FLASH
0.1u
0.1u
VSS1
J9
K2
VSS2
RFU16
K6
RFU17
A1
K9
NC1
RFU18
A10
L2
NC2
RFU19
M1
L3
NC3
RFU20
M10
L4
NC4
RFU21
L6
RFU22
B2
L7
RFU1
RFU23
B3
L8
RFU2
RFU24
B4
L9
RFU3
RFU25
B6
RFU4
B7
H3
RFU5
_OE
B8
C6
RFU6
_WE
B9
C4
RFU7
_LB
C2
D4
RFU8
_UB
C9
H2
RFU9
_CE1F
F5
B5
R316
0
RFU10
_CE2F
R317
F6
J2
A(24)
RFU11
_CE1S
G5
D6
NA
RFU12
CE2S
Mirror bit only
G6
E5
RFU13
RY__BY
G8
C5
RFU14
WP_ACC
H9
D5
RFU15
_RSTF
VBAT
EL DRIVER IC
C317
0.1u
U303
D381B
1
8
CHF
V+
2
7
CLF
L+
R537
3
6
KEY_BACKLIGHT
E
VOUT
4
5
56K
GND
L-
L301
820uH
KDZ100VW
LOW
EL OFF
C326
C327
HIGH
EL ON
ZD301
68p
10n
Section
Date
Sign & Name
Designer
Checked
Approved
Notice No.
Date
Name
LG Electronics Inc.
- 87 -
9
10
VBAT
V_IO
A(1:23)
C301
V_USB
0.1u
CN301
1
70
2
69
3
68
MICP
4
67
MICN
5
66
MICBIAS
6
65
KBR(0)
7
64
KBR(1)
R544
8
63
KBR(2)
9
62
0
KBR(3)
10
61
KBR(4)
11
60
KBC(0)
12
59
C311
KBC(1)
13
58
1000p
KBC(2)
14
57
KBC(3)
15
56
KBC(4)
16
55
KBC(5)
17
54
PWON
18
53
FOLDER
19
52
PRECHG_LED
20
51
EL_EN
21
50
LCD_RST
1K
R307
22
49
TOUCH_ACK
23
48
I2C_CLK_TCH
24
47
I2C_DATA_TCH
25
46
MAP_USB_P
26
45
MAP_USB_N
27
44
D(0)
28
43
D(1)
29
42
D(2)
30
41
D(3)
31
40
D(4)
32
39
_RD
D(5)
33
38
_WR
D(6)
34
37
_BLE
D(7)
35
36
_BHE
_CS5
C315
C316
_CS3
Mirror bit : CE2F -> N.C.
1000p
0.1u
_CS1
_RDYMEM
R318
FDP
0
R319
TCXOEN
NA
VBAT
RF2.85V
U304
MIC5219-2.85YM5
1
5
IN
OUT
2
GND
3
4
RF_LDO_EN
EN
BYP
C318
22u
C319
C320
C321
1000p
4.7u
390p
EL_EN
MG810c
Sheet/Sheets
MODEL
Main 3/5
DRAWING
Bluetooth & Conn. & LDOs
NAME
DRAWING
Rev 1.0
NO.
A
A
HSO_L
HSO_R
HSOL
HSOR
REGEN
I2C_DATA
I2C_CLK
MCLK
MIDI_INT
_MIDI_CS
_MIDI_RST
LCD_CS
MAP_INT
MAP_HOLD
MAP_RESET
_RD
_WR
B
B
A(0)
A(1)
A(2)
A(3)
A(8)
D(15)
D(14)
D(13)
D(12)
D(11)
D(10)
D(9)
D(8)
C
D
LG Electronics Inc.
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