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7. CIRCUIT DIAGRAM
1
2
3
A
VBAT
1V8_MIDI
2V8_MIDI
2V8_VEXT
R220
R221
U201
MIC2211-GMYML
0
0
1
10
VIN
VOUT1
2
9
EN1
VOUT2
3
8
EN2
NC3
B
4
7
BYP
NC2
C205
C206
6
GND
1u
27p
5
11
C207
NC1
BGND
C208
C209
0.01u
1u
10u
B4
(GPIO_12)
MIDI_RST
_RST
C211
G5
26MHZ
CLKI
1000p
D2
BLCK
D3
C
LRCK
D1
SDI
D6
GPIO0
C5
GPIO1
C1
GPIO2
C4
GPIO3
B1
LED2_GPIO5
C2
LDE1_GPIO4
VBAT
C3
LED0
B2
MTR
1V8_MIDI
2V8_MIDI
D
FB201
C219
C222
0.1u
1u
C220
C223
0.1u
1u
C226
C227
C221
C228
1u
0.1u
22u
27p
E
F
R215
(GPIO_0)
CHG_EN
0
G
H
1
2
3
LGIC(42)-A-5505-10:01
4
5
6
64POLY MIDI
120p
C201
C203
R204
0.1u
SPK_P_SM
1000p
30K
C202
22n
C204
B8
SPOUT2L
B7
SPOUT1L
C212
NA
H8
SPOUT2R
J8
SPOUT1R
U204
E8
YMU787
TXOUT
D7
EXTOUT
G7
EXC
E6
BBL
C8
HPOUTL
MIDI_HPLOUT
E7
BBR
C7
HPOUTR
MIDI_HPROUT
C216
C217
C218
0.1u
0.1u
1u
C224
C225
0.1u
1u
Charging IC
VCHARGE
VBAT
2V8_VEXT
D201
CUS02
VUSBIN
VUSBIN
U206
ISL6299
1
10
CRDL
BAT
2
USB
6
3
IMIN
_PPR
4
_CHG
CHG_STAT
(GPIO_16)
9
ICDL
7
8
USBON
GND
5
11
_EN
PGND
C236
C237
C238
C239
(1%)
1u
1u
1u
27p
4
5
6
7
8
9
512Mbits FLASH/128Mbits pSRAM
ROM_CS1
ROM_CS2
R207
MEM_CS2
MIDI_SPK-
MIDI_SPK+
R222
ADD24
DATA15
DATA14
DATA13
DATA12
DATA11
DATA10
DATA09
DATA08
DATA07
DATA06
DATA05
DATA04
DATA03
DATA02
DATA01
DATA00
MEM_CS2
MEM_CS1
RAM_CS1
RAM_CS2
R210
BURSTCLK
_WAIT
R211
_RESET
R212
0
_ADV
C229
NA
RD_N
WR_N
_UBS
_LBS
Section
Designer
Checked
Approved
Iss.
Notice No.
Date
Name
7
8
9
- 142 -
10
11
2V8_VMEM
U202
SN74AUC2G08YZPR
A1
A2
1A
VCC
B1
B2
R206
0
1B
1Y
MEM_CS1
0
C1
C2
2Y
2B
GPCS2
D1
D2
GND
2A
GPCS1
C210
0.1u
2V8_VMEM
U203
A2
A1
VCC
ROM_CS1
0
C2
B1
GPCS1
GND
C1
C215
SN74AUC1G08YZPR
0.1u
J7
E3
D15
A25
H6
D3
D14
A24
G6
C3
D13
A23
ADD24
H5
C7
D12
A22
ADD23
J4
B7
D11
A21
ADD22
G4
E6
D10
A20
ADD21
J3
B3
D9
A19
ADD20
G2
B2
D8
A18
ADD19
H7
D2
D7
A17
ADD18
J6
F8
D6
A16
ADD17
G5
E8
D5
A15
ADD16
J5
F7
D4
A14
ADD15
H4
D8
D3
A13
ADD14
G3
C8
D2
A12
ADD13
H3
B8
D1
A11
ADD12
H2
E7
D0
A10
ADD11
D7
A9
ADD10
K3
F6
_F3_CE
A8
ADD09
G8
E2
_F2_CE
A7
ADD08
K1
F2
_F1_CE
A6
ADD07
C1
A5
ADD06
C5
B1
S_CS2
A4
ADD05
J1
D1
_S_CS1
A3
ADD04
E1
A2
ADD03
D6
F1
_P1_CS
A1
ADD02
K2
G1
_P2_CS
U205
A0
ADD01
PF38F4455LLZBQ0
K8
P_MODE_CRE
0
C6
CLK
G7
WAIT
1V8_VCORE
F4
_F_RST
300
E4
_F_WP
E5
_ADV
B6
F2_VCC1
H8
K6
_F2_OE
F2_VCC2
J2
_F1_OE
C230
C231
C232
H1
_R_OE
0.1u
0.1u
1u
B5
F1_VCC1
F5
L4
_F_WE
F1_VCC2
D5
_R_WE
F3
_R_UB
C2
_R_LB
J8
VCCQ2
B4
K7
VSS7
VCCQ1
C4
L3
2V8_VMEM
VSS6
VCCQ0
L1
VSS5
L2
K4
VSS4
S_VCC
L5
VSS3
L6
K5
VSS2
P_VCC
L7
VSS1
L8
D4
VSS0
F_VPP
C233
C234
C235
0.1u
0.1u
1u
Date
Sign & Name
Sheet/Sheets
MODEL
KG920(MAIN)
2006/
SANG KYU SONG
03/11
2/7
DRAWING
MEMORY/MIDI
NAME
DRAWING
VER_1.0
LG Electronics Inc.
NO.
10
11
12
A
B
C
D
E
F
G
H
12
LG Electronics Inc.
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