Service Manuals, User Guides, Schematic Diagrams or docs for : Samsung GSM D900 D900
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GSM ANTENNA
ANT101 ANT102
TP TP
RFS100
KMS-512
J_ANT
G A C G
C127
1 2 3 4
4PF
C131 4PF
C129 L101
12nH NC L102
47nH
C100
100PF
50V
FESW1
L104
C101 2.2nH
NC DCS_RX_N
L105
4.7nH L106
2.2nH
DCS FESW2 DCS_RX_P
MOD100
C130 10 LSHS-M085FF
C102 L107
NC
10PF 1.2nH
ANT
U103 50V PCS_RX_N
RF3159 R101 GSM1800_RX1 5
R102
1K GSM1800_RX2 6 L108
2 BAND_SEL 10 L109
VBIAS 8 14 VC1 GSM1900_RX1 7 4.7nH 1.2nH
PON_PA 3 TXEN 1 L110 13 VC2 GSM1900_RX2 8
HB_RFIN PCS_RX_P
4 VBATT 7 L111 1.2NH 2.7PF GSM900_RX1 3
VBAT LB_RFIN 10
5 12 GSM900_RX2 4
MODE_SELECT MODE HB_RFOUT GSM1800/1900_TX L112
6 9 GSM850_RX1 1
RAMP LB_RFOUT 10nH
15 GSM850|900_TX GSM850_RX2 2 EGSM_RX_N
TA100 C103 GND L113
47UF C104 3.3nH L114
10V 22PF 10NF 11 G G G G G G G L115
50V C128 C106 C107 C105 15nH
16V 1.2PF C108 10nH
10PF NC 18nH 9 11 16 17 18 19 20
2PF EGSM_RX_P
50V
R103
1K L116
RAMP 8.2NH
GSM850_RX_N
C109
C110 L117
2.7NF 10PF L118
12nH
50V 50V 8.2NH
GSM850_RX_P
RX_TX_IP
+VCC_SYN+VCC_SYN +VDD_RF_1V5 +VDD_RF_1V5 +VCC_SYN
RX_TX_IN
RX_TX_QP
U102
PMB6272
R104
1 36 R105 4.7
RX_TX_QN A TX1
2 37 10
AX TX2
3
B
4 34
BX VBIAS
18
VCO_RC
7 R106
RF_CLK CLK
6 31 820
RF_DATA DA VDDBIAS2V5
16 8
RF_EN EN VDDDIG1V5
5
VDDDIG2V5
32 21
FESW1 FE1 VDDLNA1V5
33 39
FESW2 FE2 VDDMIX2V5 U104
19
VDDRX1V5 C112 C111 R1114D151D-TR-F
C113 1NF 50V 14 20 TCX100
D_REF_CLK FSYS1 VDDRX2V5 C114 100NF 47NF
10 35 TG-5010LH-02A 1 6
FSYS2 VDDTX1V5 100NF 10V R107 VBAT VDD CE RF_PWR
9 38 10V 1K
FSYS3 VDDTX2V5 C115 4 1
17 VC 2 5
VDDVCO2V5 47NF VCC AFC GND GND
29 15
GSM850_RX_P RX1 VDDXO2V5
27 3 4
EGSM_RX_P RX2 3 2 +VDD_RF_1V5 VOUT NC
24 11 OUT C116
DCS_RX_P RX3 XO GND 100PF
22 12
PCS_RX_P RX4 XOX 50V
C117
30 13 10NF C118 C119
GSM850_RX_N RX1X GND
28 26 C120 1000nF 1000NF
EGSM_RX_N RX2X GND
25 40 100NF
DCS_RX_N RX3X GND
23 41
PCS_RX_N RX4X GND
C122 C123 C124 C121 C125 C126
100NF 100NF 100NF 47NF 100NF 4.7NF
10V 10V 10V 10V 50V
VC1 VC2
Tx(GSM850/900) H L
Tx(DCS1800/1900) L H
RX(850/900/1800/1900) L L
Title
RF Schematic
REV1.2
SGH-D900/D908/RF B_TO_B
G Date: 2006.06.16 Sheet 1 of 7
2.6V 2.9V 1.8V 1.875V
3.3V 2.6V
+VDD_USB +AVDD_HFA +AVDD +VDD_IO_HIGH +VDD_IO_LOW +VDD_GSM_CORE
1.875V 2.9V 1.8V 2.6V
+VDD_GSM_CORE +VDD_IO_HIGH +VDD_IO_LOW +AVDD_HFA
1.8V 2.6V 3.3V 2.6V
2.9V 1.8V +VDD_IO_LOW +AVDD +VDD_USB +AVDD C210 C213 C219 C221 C211 C212 C201 C202 C203 C204 C205 C206 C207 C208 C209
+VDD_IO_HIGH +VDD_IO_LOW 100nF 100nF 33PF 100nF 100nF 10nF 100nF 100nF 100nF 100nF 100nF 100nF 100nF 100nF
1000nF
10V 6.3V 6.3V 25V 6.3V 6.3V 6.3V 6.3V 6.3V 6.3V 6.3V 6.3V 6.3V 6.3V 6.3V
TP201
R250 TP202
8.2K TR201
SI1012R BT_EN
TXD1
M15
G15
G18
D14
H17
U10
U11
H15
H12
R10
B10
E10
E12
E18
E13
A13
A15
B11
P12
E14
V13
T17
T18
J18
J12
1G
M4
M9
G5
U6
R7
C2
D6
H2
H9
N2
N4
U2
N5
K8
E9
R201
2
1
3D 10K
NC
NC
NC
NC
NC
NC
NC
NC
NC
RSTRTC
BBPWR
VDDA2
VDDRTC
VDDBB
VDDC
VDDC
VDDC
VDDC
VDDC
VDDCLK
VDDE1
VDDE1
VDDE1
VDDE1
VDDE1
VDDE1
VDDE1
VDDE1
VDDE1
VDDE2
VDDE2
VDDE2
VDDE2
VDDE2
VDDE2
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