Service Manuals, User Guides, Schematic Diagrams or docs for : Samsung GSM X640 SGH-X640_schematics
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1 2 3 4 5 6 7 8 9 10 11 12
VCC_RFVCO
PON_SYNTH
PON_RX
VCC_SYNTH
FE_SW2
FE_SW1
A L100 A
C102 C103 C101 C100
2.2nH VCC_RX_TX 50V 10V 10V
F100 R100 50V
C104 8.2PF 100NF 8.2PF 100NF
FAR-F5EB-942M50-B28CH C105 3.6K
50V
47PF 3 50V
OUT 1.8NF
EGSMRX 1 L101
IN C107 C106
4 L102 15nH 50V 50V
G G OUT C108 R101
2.2nH 10V 390PF 2.2K 150PF
L103 2 5 100NF
18nH
C109 50V 33PF
F101 C110
C111 25V
FAR-F6EB-1G9600-B2BW 6.8NF
50V
39PF 3
OUT 29 28 27 26 25 24 23 22 21
PCSRX 1 L104 30
IN 31
4 4.7nH
FESW2
FESW1
RFLOVCC
GNDTUNE
RFTUNE
RFVCOVCC
SYNON
RXON
RFCPO
G OUT RFVCC
SYNVCC
G C112 50V 33PF
L105 2 5 32
GSMIA 20
12nH
RFCPVCC VCC_CP
33
GSMIB C113 C114
19 50V 10V
B C115 34 EN
8.2PF 100NF
B
50V RFGND1 18
33PF CLK
35
C116 F102 PCSIA
FAR-F6EB-1G8425-B2BCH 17
50V DATA
39PF 3 36 RF_EN_SYNTH
OUT L106 PCSIB 16
1
DCSRX IN
4 C117 5.6nH 37 U100 REFVCC
RF_BBI_CLK
G G OUT 50V RFGND2
33PF
38
UAA3536HN/C3 REFIN
15
L107 2 5 RF_BBI_DATA
18nH DCSIA 14
REFGND C118
39 10V R102
DCSIB 13 C119 220NF
50V 1.5K,1%
40 CLKFDBX
ANTSW_ON 1NF
FESWON 12
CAFCSUP
42 GND2 C120
43 11 50V
GND3 CLKOUT
TXCPVCC
44 1NF
EXTRES
C121 GND4
TXCPO
IFVCC
TXRFI
50V
TXON
GND1
45 NC1
10PF 46
QA
QB
NC2
IA
IB
3 4 C122
C 1 2 3 4 5 6 7 8 9 10 41 R103 10V C
OUT VCC 220K 220NF
R104 OSC100
51 TCO-5871U 26MHz VC1(VC_DCS) VC2(VC_PCS) VC3(VC_EGSM)
GND VCON
2 1 R105
R106 10K,1% EGSM_TX 1 0 0
R108 R107 22K,1% AFC
120 120
C123 EGSM_RX 0 0 0
50V R109
0.1nF 220K
DCS/PCS_TX 0 1 0
VCC_TX_BURST
MEL_13M DCS_RX 0 0 0
C125 C124
10V 50V D_REF_13M
1UF 10PF VCC_CP R112 PCS_RX 0 0 1
R111 R113 R110 C126
16V 2.7K
120 120 10K
D C127
C128 10NF D
50V
10V 8.2PF
100NF
VCC_SYNTH
12 8
C130
VB2
VB1
C129 10V
5 R114 50V
DCS_PCSTX OUT1 100NF
OSC101 200 8.2PF
10
VC
1 OUT2 MQW510C869M
EGSMTX R115
R116 2.7K
14 QRX_TX_N
G 120
SW1 SW2 G G G G G R117 2.7K
G
C131 C132 QRX_TX_P
R118 33K 2 4 3 6 7 9 11 13 50V 50V
GSM_TXVCO_EN 20PF C133 68PF R119 2.7K
25V IRX_TX_N
R120 0 22NF
DCS_TXVCO_EN R121 2.7K
IRX_TX_P
C134 C135
50V 50V PON_TX
39PF 10PF
E E
C136 C138 C137 C139
50V 50V 50V 50V
VBAT 220PF 220PF 220PF 220PF
F103
NFM18PC104R1C3D
1 3
2
C141 C142
6.3V 16V
100UF 10NF
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