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GSM_ANT_SEL0_N(BS1)
H
RTR6285
GSM1800/1900 TX
GSM850/900 TX
L
H
L
FEM
H
2.5G PAM
L
ON
L
TX SPECTRAL EMISSION
L
L
L
GSM_PA_BAND
H
WCDMA 900 & 2100 PAM
MODE
WCMDA 2100 RX/TX
H
H
TCXO
L
H
L
H
L
PA
GSM900 RX
L
L
L
GSM850 RX
L
GSM1800 RX
GSM_AND_SEL1_N(BS2)
L
L
TX SPECTRAL EMISSION
GSM_PA_EN
L
H
H
GSM1900 RX
L
L
GSM1800
< ANT PAD >
L
GSM_ANT_SEL3_N(BS4)
L
GSM900
H
GSM_ANT_SEL2_N(BS3)
H
L
L
WCMDA 900 RX/TX
H
L
OFF
L
H
L
WCMDA 1900 RX/TX
WCDMA 1900 PAM
C124
8 9
G
RX 1
TX
3
VREG_PA_2.1V
DUF102
6
ANT
2
G
G
4 5
G G
7
G
R104
L128
L114
C158
VEN
VMODE0
4
3
VMODE1
R116
CPL_OUT
6
GND
7
11
GND
RF_IN
9
2
RF_OUT
1
VBAT
VCC
10
5
PAM102
CPL_IN
8
C140
C130
C173
C119
C101
C151
OUT
4
R101
F101
2
G
3
G G
5
IN
1
C176
C197
C198
5
7
G
G
8
G
9
1
RX
3
TX
DUF101
6
ANT
G
2
G
4
G
12K
R112
1005
TX_EN
6
VBATT
4
5
VRAMP
13
BYPASS_CAP
1 DCS|PCS_IN
DCS|PCS_OUT
12
GND
8
2
GND
7 GSM850|900_IN
GSM850|900_OUT
10
PAM100
3
BAND_SEL
9
BYPASS_CAP
L129
C112
67
68
TX_RBIAS
69
GND_SLUG
7
VDDA2
70
NC
71
NC
8
VDDA2
VTUNE_GPS
9
6
60
VDDA2
61
VDDA2
62
VDDA2
63
TX_IN
64
TX_IP
65
TX_QN
66
TX_QP
DAC_IREF
PDET_IN
53
VDDA1
54
VDDA2
55
LB_RF_OUT1
56
HB_RF_OUT1
57
LB_RF_OUT2
58
HB_RF_OUT2
59
HB_RF_OUT3
VDDA1
GPCS_INN
46
DCS_INP
47
DCS_INN
48
EGSM_INP
49
EGSM_INN
5
VTUNE1
50
GCELL_INP
51
GCELL_INN
52
WPRXSE1
39
WDRXHB2
4
VDDA1
40
WDRXHB1
41
WDRXLB
42
GPS_IN
43
VDDA2
44
GPCS_INP
45
WPRXLBP
31
WPRXLBM
32
WPRXHBP
33
WPRXHBM
34
WPRXSE2_OUT
35
WPRXSE1_OUT
36
WPRXSE2
37
VDDA2
38
VDDM
24
VTUNE2
25
VDDA2
26
RF_ON
27
VDDA2
28
WB_MX_INP
29
WB_MX_INM
3
VDDA1
30
DRX_QN
17
DRX_IP
18
DRX_IN
19
N|C
2
TCXO
20
SBDT
21
VDDA2
22
VDDA1
23
1
VDDA2
10
VDDA1
11
PRX_QP
12
PRX_QN
13
PRX_IN
14
PRX_IP
15
DRX_QP
16
U100
VREG_RFRX1_2.7V
C154
C183
C174
L119
C108
VREG_PA_2.1V
R121
C163
VREG_RFRX1_2.7V
R100
C152
L126
VREG_RFRX1_2.7V
R107
C192
C190
L150
C114
L151
C187
C168
V_BAT
VREG_PA_2.1V
R111
C184
C162
C180
L144
C145
R115
L139
R110
L132
C165
V_BAT
L136
C105
F103
G
2
5
G
1
IN
OUT
3
4
OUT
C171
L112
L149
F100
G
2
G
3
G
5
1
IN
OUT
4
C109
L143
R118
C120
L106
R119
R117
L109
C156
C103
C196
C188
C117
C143
C178
L111
2
GND
3
OUT
VC
1
4
VCC
C179
TCX100
C177
C161
C167
C153
C164
C142
L145
C159
C131
C123
C121
L115
C138
C155
C106
L103
C110
C129
C139
L104
C195
C113
VREG_TCXO_2.85V
C146
C157
C150
C199
ANT100
1
2
C100
14
15
GSM900_RX
UMTS1
20
21
UMTS2
UMTS3
22
7
VDD
16
17
GSM1800_RX
9
GSM1800|1900_TX
GSM1900_RX
18
19
GSM1900_RX
GSM850_RX
12
13
GSM850_RX
GSM850|900_TX
11
GSM900_RX
4
5
CTRL3
CTRL4
6
1
GND
GND
8
GND
10
23
GND
24
GND
GSM1800_RX
RFS101
ANT
2
CTRL1
3
CTRL2
L105
C128
R113
L130
4
C115
F102
G
2
G
3
G
5
1
IN
OUT
R108
L153
L113
C186
VREG_PA_2.1V
VREG_SYNTH_2.7V
C118
L116
C194
C147
VREG_MSMP_2.6V
L147
L146
R114
4 5
G G
7 9
G
RX 1
RX
8
3 TX
VREG_PA_2.1V
DUF100
6
ANT
2
G
G
L148
L137
L138
C181
L134
C148
L154
C135
C104
C122
R109
L140
C182
C191
C185
R122
C189
C134
L101
VCC
12
VEN_B1
6
5
VEN_B8
VMODE0
2
3
VMODE1
GND
11
GND
13
GND
15
GND
7
RFIN_B1
1
RFIN_B8
RFOUT_B1
10
RFOUT_B8
14
VBAT
4
PAM101
CPL
8
9
C175
C137
R120
C127
C169
L108
L142
C166
C102
V_BAT
C149
C136
C144
C
1
G
3
4
G
L152
RFS100
A
2
C107
C160
C193
TRX_WCDMA1900
PAM_RFOUT_DCS_PCS
PAM_RFOUT_G850_EGSM
CLK19.2M_TCXO
C170
PAM_RFOUT_DCS_PCS
PAM_RFOUT_G850_EGSM
WCDMA_RXM_1900
WCDMA_RXP_1900
GSM_PA_PWR_CTL
GSM_PA_EN
GSM_PA_BAND
GSM_ANT_SEL1_N
GSM_ANT_SEL0_N
TRX_WCDMA2100
TRX_WCDMA900
TRX_WCDMA1900
RX_GSM850_P
RX_GSM850_N
GSM_ANT_SEL3_N
PA_R1
PA_ON_W900
TRX_WCDMA2100
RX_EGSM900_P
RX_EGSM900_N
RX_DCS1800_N
RX_DCS1800_P
RX_PCS1900_N
RX_PCS1900_P
GSM_ANT_SEL2_N
PA_ON_W2100
PAM_RFOUT_W2100
WCDMA_RXP_900
WCDMA_RXM_900
TRX_WCDMA900
PAM_RFOUT_W900
PA_R1
PAM_RFOUT_W1900
RTR_W2100_RX
PA_ON_W1900
PWR_DET
PAM_RFOUT_W900
PAM_RFOUT_W1900
RTR6285_TCXO
TRK_LO_ADJ
USB_TCXO
SSBDT_RTR6285
RX_GPS
WCDMA_RXP_900
WCDMA_RXM_900
WCDMA_RXM_1900
WCDMA_RXP_1900
RX_GSM850_P
RX_GSM850_N
TX_Q_N
TX_I_P
TX_I_N
PWR_DET
PAM_RFOUT_W2100
WCDMA_RXM_2100
WCDMA_RXP_2100
RX_EGSM900_N
RX_EGSM900_P
RX_DCS1800_N
RX_DCS1800_P
RX_PCS1900_N
RX_PCS1900_P
RTR_W2100_RX
WCDMA_RXM_2100
WCDMA_RXP_2100
TX_ON
RX_Q_P
RX_Q_N
RX_I_N
RX_I_P
RX1_Q_P
RX1_Q_N
RX1_I_P
RX1_I_N
RTR6285_TCXO
DAC_REF
TX_Q_P
SAMSUNG CONFIDENTIAL
THIS DOCUMENT CONTAINS CONFIDENTIAL
PROPRIETARY INFORMATION THAT IS
SAMSUNG ELECTRONICS CO S PROPERTY.
DO NOT DISCLOSE TO OR DUPLICATE FOR OTHERS
EXCEPT AS AUTHORIZED BY SAMSUNG.
GT-B6520 SERVICE SCHEMATICS
< RF Part 1 >
GSM850 RX
DCS
GSM900 RX
PCS
DCS/PCS TX
GSM850/900 TX
WCDMA2100 TRX
WCDMA900 TRX
WCDMA1900 TRX
GPS