Samsung SGH-E380 Schematics
DCS_TX
PON_PA
MODE_SELECT
ANT_GND
1
1
2
2
3
3
4
4
5
5
6
6
ANTCON-X660
L104
L101
2.2nH
1.5nH
C107
2.7PF
FESW2
VBAT
RAMP
C108
1.8PF
F102
NFM18PC104R1C3D
2
10KR107
C109
NC
C117
220PF
13
TA123
47UF
10V
C128
0.33NF
C121
C122
10NF
33PF
16V
50V
L112 12nH
C132
4.7PF
ANT101
1
1
2
2
3
3
4
4
5
5
6
6
ANTCON-X660
C142
8PF
L102
22nH
J_ANT
FESW1
FESW2
C139
33PF
PAM100
TQM7M5004
1
DCS/PCSIN
3
BAND
4
TX_EN
5
VBATT
6
MODE
7
VRAMP
100K
R109
8
VBIAS
GSM850/900IN
9
14
DCS/PCSOUT
12
VCC
10
GSM850/900OUT
GND
GND
GND
GND
GND
GND
15 16
17
11
13
2
RFS100
KMS-515
A
G
2
3C1G4
L142
NC
0R137
R136 0
C106
NC
C125
5.6pF
L110
L140
3.9nH
NC
C131
6.8PF
L111
C141
NC
NC
VC110
12
VC2
11
GSM900_TX
13
GSM1800/1900_TX
L141
33nH
C101
33PF
50V
F101
ESHS-M090SC
8
ANT
GSM1900_RX2 4
GSM1800_RX2 2
GSM900_RX2 6
G7G
9 14
3GSM1900_RX1
1GSM1800_RX1
5GSM900_RX1
G G
G
1516
L114
6.8nH
L116
C134
4.7nH
NC
PON_SW
+VDD_RX_TX_2V8
GSM900 RX
+VCC_SYN_2V8
PCS RX
DCS RX
C130
10PF
C136
100PF
+VCC_SYN_2V8
L100
1.0NH
C104
33PF
C105
33PF
L106
33nH
C112
100NF
C113
33PF
C119
33PF
L109
1.2NH
L115
1.2NH
+VCC_SYN_2V8
C102
NC
L103
18nH
L108
5.6nH
C120
0.5PF
31
32
33
34
35
36
37
38
39
40
42
4344
4546
VCCRF
SWBIA
SWBIB
GNDRF1
HBIA
HBIB
GNFRF2
LBO
TXVCC
SWON
GND2
GND3
GND4
NC1
NC2
0R111
C103
100PF
GNDRF3
1
27
28
29
30
LBIA
LBIB
VCCRFLO
U102
UAA3587EHN/C2
FESW1
GNDRF4
HBO
4
3
2
26
EXTRES
FESW25FESW3
6
OSC100
VC-TCXO-214C6-26.0C
3
4
R106
220K
L113
PON_3587_SYNTH
2
OUT
GND
VCC
VCON
C115
100PF
1
R103
10K
R104
220K
AFC
26M_CLK
D_REF_CLK
+VDD_IO_LOW_1V8
RF_EN
RF_CLK
RF_DATA
100nH
+VDD_RX_TX_2V8
C111
+VCC_SYN_2V8
5.6pF
L107
NC
C118
1NF
C124
NC
25
22
21
24
23
CTRL
REFIN
VCCCP
RFTUNE
VCCSYN
GNDREF
CLKFDBX
20
REFVCC
19
CLKOUT
18
PGMDIV
17
VDDL
16
GNDL
15
EN
CLK
13
DATA
12 14
VCCIF
11
GND1
QA
QB
IA8IB
9
7
10
41
C114
R138
100PF
1K
R105
10
C127
220NF
C137
10nF
C129
100PF
C135
1NF
DCS_TX
RX_TX_QP
RX_TX_QN
RX_TX_IP
RX_TX_IN
Tx(GSM900)
Tx(DCS1800/1900)
FESW1 FESW2
FESW1
FESW2
FESW3
L
L
HLL
L(H)
RX(GSM900) LL
Rx(DCS1800)
Rx(PCS1900)
G
L
LHL
L
L
H
Title
RF Schematic
Document Number Rev
Date:
Sheet 1 of 8
Rev 0.7ASAMSUNG/SGH-E380/RF
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