Service Manuals, User Guides, Schematic Diagrams or docs for : Samsung GSM E770 E770_schematics
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RFS100
KMS-512
C153 8.2PF
G
G
C
A
ANT1
4
3
2
1
A C10 L101 C101 A
VCCB_2.9V VPAC_2.8V VCCD_2.9V 15pF 2.2nH 3PF
VRF_2.9V ANT
6 ANT
ANT L109
GSM_OUT 2 EGSM_TX PCSRX 11
39nH NC C12 L108 L106
DPCS_OUT 17 DPCSTX DCSRX 13
L102 0.5PF
47nH DCS_TX_EN 16 VC2 F100 EGSMRX
15 R125 NC 4.7nH
GSM_TX_EN 4 VC1
C14
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
1000nF 1 3 5 7 8 9 121418192021222324
10
C15 C16 VRF_2.9V
R13 0.01NF 33PF
5.6K FEM5440TSC
C154 C17 C18 C19
C110 C111
10nF 100nF 100nF 100PF VRF_2.9V
R16
2K 10nF 10nF L103 2.7nH
C112 C113 L104 2.7nH
IF_REF+
B C152 C114
C155 B
IF_REF-
680PF 220PF
10nF 100nF
10nF C115 L105 10nH
100nF
23
26
32
27
39
16
19
38
31
15
7
C116 C117
8.2NF 10nF
VDD
VCC_UHF
VCC_TX_VCO
VCC2_MIX_BB
VCC_LO
VCC_LNA
VCC_FP
VCC_FN
VCC_DRV
VCC_BB
VCCD
20 1
VBAT C118
XTAL_TUNE LNA1900
25
UHF_TUNE LNA1800
43 10nF
18
UHF_CPO LNA900
42 C119 C123
24
UHF_BYP
NC NC C121
R19 6
10nF
100 35
EDGE_REF-
5 IF_REF-
46
TX_TUNE EDGE_REF+
41 IF_REF+
C122 R110 RTXQN 4
TX_Q- EDGE_LO
2 LO R111
5PF 390 RTXQP 45
TX_Q+ EDGE_IF-
3 IF_OUT- 10K,1%
C124 RTXIN TX_I- EDGE_IF+
IF_OUT+ VAPC
58
120PF
39PF RTXIP TX_I+ C127 C128 C100
C129
37 22
TX_EN 40
TX_EN LE
51
SERLE 10NF 10NF 10UF
C130 34
TX_CPO DATA
13
SERDAT 10V
3.9NF 33
TX_1800_OUT
UCD100 CLK_BUFF_OUT
21 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29
TX_900_OUT CLK
57
SERCLK
C SKY74945 C
GND25
GND24
VPC
GND23
GND22
GND21
GND20
GND19
VBAT
GND18
NC
IF_IN-
IF_IN+
VAPC
V_IF2
BS2
17
CLK13M_RF 50
SYN_REF
10
SX_EN SX_EN CAP_Q-
48 C131 44
28
CAP_Q+
9 0.39nF GND26 28
RX_Q- CAP_I-
45 CLK SERCLK
C133 29
RX_Q+ CAP_I+
8 C132 PAC_EN PAC_EN
5.6pF 30 0.39nF 27 SERLE
54
RX_I-
56 46 LE
DCS74945_OUT 36
RX_I+ BANDSEL
11
BAND_SEL BAND_SEL BANDSEL 26
RX_EN RX_EN 26MHZ_PAD DATA SERDAT
47
12
VCCA 25
53
LPF_ADJ
48 IF_OUT- IF_OUT-
52
LO- GND27 24
R112
LO+
49 IF_OUT+ IF_OUT+
R113 39K,1% GND28
V_IF1 23
GND
GND
GND
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