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GSM850


VR101
VC040205X150R

2.8V
+VCC_SYN
RFS100
KMS-512

ANT101 ANT102
G A C G GSM900RXTX
- -
1 2 3 4
VR102 R127
VC040205X150R 0




3




3 3
1 1
2 2


4




1 1
2 2


4
3
4




4
L141
33nH C147
C102 9PF 100NF 2.8V
50V 16V +VCC_SYN
L118
R138 C103
L121 L144 NC
0 8PF




PB2 16

VCTL2 15

VCTL1 14

13
82nH 18nH
50V




PA2
C104
F101




12
J_ANT NC




1
8 GND GND
C105




11
ANT




2
R135 10nH 12 VC1 GSM900RX 4 GND GND 33PF
FESW1
R136 10nH 9 VC2 GSM900RX 5 U100 50V
FESW2




10
R137 0 13 VC3 DCSRX 1




3
FESW3 PC2 NJG1524APC1 PC1
10 DCS|PCSTX DCSRX 14




9
PCSRX1 2




4
11 850GSM|GSM900TX GND GND
C158 C159 C160 7 850GSMRX PCSRX2 3




VCTL1
NC NC 33PF 6 850GSMRX C106 L101
G
GSM900 RX




PB1




PA1
25V 33PF




NC
10nH
15 50V
LMG004W-5129A




5

6

7

8
C107
39PF
50V
L103 PON_3587_SYNTH
FESW1 FESW2 FESW3 2.8V 0
+VCC_SYN 2.8V C109
+VCC_SYN 7PF
50V
Tx(GSM900) H L L C110
NC
Tx(DCS1800/1900) L H L(H) L140
C112 TCX100
NC
RX(GSM900) L L L PCS Rx 33PF
50V R129 TCO-5871U 26MHz
100,1%
3 2
OUT GND
Rx(DCS1800) L L L L137
C118




VCON
5.6nH C146 4
33PF C116 VCC
NC




1
Rx(PCS1900) L L H 50V 100NF
16V C114
C120 100PF
50V
R103
C121 NC
18PF R105 10K
DCS Rx 50V 10



L106
C122 6.2nH
18PF
50V AFC




30

29

28

27

26

25

24

23

22

21
R130 L139
0 1.5nH VCCRF




LBIB

LBIA

VCCRFLO

EXTRES

VCCCP

RFTUNE

CTRL

VCCSYN

GNDREF

REFIN
C123




31
DCS_TX
SWBIA NC
C161 L135 3.3nH




32
R132 C162 C145
1.8PF C157 CLKFDBX




20
NC 1.8PF NC SWBIB C124
47PF




33
50V 50V
50V REFVCC 100PF




19