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7. CIRCUIT DIAGRAM
1
2
TP500
TP501
TP502
R502
5.6nH
A
1.5p
C588
R588
2.2nH
SW500
KMS-506
C515
22p
GND13
PCS_RX2
24
15
GND12
PCS_RX1
23
14
GND11
DCS_RX2
22
13
GND10
DCS_RX1
21
12
GND9
EGSM_RX2
20
11
GND8
EGSM_RX1
19
10
GND7
18
GND6
17
GND5
16
GND4
7
GND3
DCSPCS_TX
6
5
GND2
EGSM_TX
4
8
GND1
2
FL500
HWXQ511
R516
R518
C540
C541
270p
270p
CLKON
E
1
2
3
LGIC(42)-A-5505-10:01
3
4
5
VBAT
C504
C500
C501
C502
C503
12p
18p
0.01u
33p
22u
RSVD_GND
BS
19
1
ENABLE
18
SKY77328
GSM_OUT
U500
GSM_IN
11
4
C507
10p
DCS_PCS_OUT
DCS_PCS_IN
15
3
C509
L599
NA
12nH
C516
C519
C520
0.01u
0.01u
27p
R513
C517
C518
NA
NA
TX_RAMP
C522
1K
39p
C524
2p
L500
5.6nH
C525
1.8p
C527
1.5p
L501
6.8nH
C528
1.5p
C529
1.5p
L502
27nH
C533
1.5p
0
ANT_SW1
0
ANT_SW2
VBAT
RF2V85
U503
MIC5255-2.85BM5
1
5
IN
OUT
2
GND
R522
3
4
EN
BYP
0
R523
C545
C546
C547
100K
1u
0.01u
4.7u
Iss.
4
5
6
7
8
R500
100
R501
100
C505
C506
27p
27p
RF2V85
2V8_VEXT
4dB
R505
C508
33p
24
C510
C511
C512
22p
0.1u
100p
R509
C514
10p
R511
30
R508
R510
0
180
180
R512
5dB
NA
C521
27p
R514
NA
RFIPP
XOUT
26M_DBB
17
8
RFIPN
BIP
18
7
RFIDP
BIN
19
6
RFIDN
SI4210
BQP
20
5
RFIEP
U501
BQN
21
4
RFIEN
SDIO
22
3
RFIAP
_SEN
23
2
RFIAN
SCLK
24
1
RF2V85
C530
C531
C532
27p
27p
27p
C534
C535
22p
0.1u
C537
1000p
2V75_VVCXO
X500
3
OUT
VCONT
R520
100
4
VCC
GND
C542
NA
26MHz
C544
2.2u
Section
Date
Sign & Name
Designer
Checked
Approved
Notice No.
Date
Name
LG Electronics Inc.
- 91 -
9
10
PA_BAND
PA_EN
RF_RST
RF_PWR_DWN
IP
C523
39p
IN
QP
C526
39p
QN
S_DATA
S_EN
S_CLK
2V75_VVCXO
C536
2.2u
U502
SN74AHC1GU04DCKR
26M_DBB
R560
R515
0
26M_CAM
C538
0
R561
0
1000p
26M_MIDI
R519
1M
1
AFC
R521
2
15K
C543
1000p
Sheet/Sheets
MODEL
BUTTERFLY(KG225)
5 / 6
DRAWING
RF
NAME
DRAWING
VER-1.1
NO.
LG Electronics Inc.
A
B
D
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