LG CU920 - 7 Circuit Diagram

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11 16
(PPS)
1
C
(1%)
5
LMSP4LMA-573TEMP_Rev B Later
HIGH
9
TCXO
GSM/EDGE
C
12
B
HIGH
10
GSM900 RX
HIGH
B
7.75dB
13
ANT_SEL3
UMTS 850 LOW
HIGH
E
LOW
LOW
4
HIGH
LOW
F
LOW
LOW
C
6
LOW
8
ANT_SEL1
GSM 850 RX
A
LOW
14
LOW
1
8
ANTENNA SWITCH MODULE LOGIC
HIGH
(1%)
5
LOW
VTUNE-Connected directly to GND
LOW
(1%)
7
A
LOW
7
E
LOW
(1%)
15
F F
PCS RX
D
LOW
GSM900/GSM850 TX
remain LOW when not transmitting
LOW
ANT_SEL2
D
2
LOW
C
Near to 48 pin
ANT_SEL0
4
E
3
HIGH
HIGH
DCS RX LOW
DCS/PCS TX
LOW
E
D D
HIGH
HIGH
EGSM
9
LOW
3
GSM850
HIGH
HIGH
WCDMA
HIGH
UMTS 1900
6
LOW
LOW
2
56nH
C102
47nH
L120
100pC137
R123
100ohm
C179
1.5p
6pC106
L124
2.2nH
L119
18nH
B7637
ANT
GND1
GND2
GND3 GND4
GND5
GND6
RX
TX
L118
22nH
U103
3.9nH
L134
L901
27nH
C931
L116
27nH
68p
1nH
L144
C111 3300p
82
R115
NA
C113
L101
33p
56R102
1000p
C151
L903
4.7nH
22p
R130 5.62K
7
VEN_PCS
3
VMODE
C192
AWT6321R
5
GND1
GND2
9
10
GND3
GND4
14
15
PGND
RFIN_CELL
2
RFIN_PCS
6
13
RFOUT_CELL
8
RFOUT_PCS
VBATT
4
12
VCC
VCCA
11
1
VEN_CELL
U105
3.3nH
51
R119
L904
15nH
L128
LMSM32AA-533
GND1
2 3
GND2 GND3
4 6
GND4 GND5
8
1
RFINRFOUT
5
7
VC
L100
FL101
4.7nH
6.8nH
L905
3.3nH
L110
C183
2.2u
5.1R107
51
R124
C146
7p
110
R105
0.1u
R109
C123
1K
L138
15nH
NA
C101
C169
100p
L108
30p
18nH
100p
C929
C185
C174
NA
L135
10nH
0.1u
4
VCC
1
VCONT
L127
TG-5010LH_19_2M_75A
X100
19.2MHz
GND
2
OUT
3
33p
C193
NA
L131
R114 10
12p
C114
C117
1000p
110
R120
C143
NA
22p
C142
C190
12p
100p
L145
68nH
C109
C165
10p
1.2nHL141
0.5p
C140
C191
22p
C157
33p
100ohm
0.1uF
R118
R126
C112
2.7R110
2.2K
6
1
O1_CELL
4
O2_PCS
5.62KR129
FL103DGLP36M01
G1
2
G2
3
G3
5
G4
10
7
G5
8
G6
I1_CELL
9
I2_PCS
L113
NA
2.7nH
R103 12K
L107
C135 22p
200
R122
L111
C160 100p
27nH
L908
82p
1.5nH
C147
C173
33u
0.068u
C184
L130
SW100
ANT
G1
G2
RF
6.8nH
C187
KMS-512
0R100
0.1u
68p
C128
L114
68nH
2.2u
C133
C118
100p
82p
L142
R127
10K
33p
C928
56p
C115
100pC166
R111 1K
C188
22p
56p
22nH
L139
C100
1KR112
0.1uF
C156
47nH
L117
0.1uC125
C132
33p
C161 1000p
L132
3.3nH
0.01u
C141
4p
15nH
C170
C139
L140
30p
100p
C186
R108 1K
L909
5.6nH
C104
180p
C122
12
1
TX_EN
VAPC
6 5
VBATT
0.1u
PGND15 PGND16
32
PGND17
33 34
PGND18
35
PGND19 PGND2
18
PGND20
36 19
PGND3
20
PGND4 PGND5
21 22
PGND6
23
PGND7 PGND8
24
PGND9
25
RSVD1
4
RSVD2
8
RSVD3
BS
2
DCS_PCS_IN
DCS_PCS_OUT
16
10
GND1
11
GND2 GND3
13 14
GND4 GND5
15
GSM_IN
7
GSM_OUT
9
PGND1
17 26
PGND10
27
PGND11
28
PGND12 PGND13
29
PGND14
30 31
U101
SKY77329
3
L102
NA
0.01u
C152
SAFEB1G96FL0F00
FL105
G1
2
5
G2
1
IN
3
O1
4
O2
L125
10nH
NC
15
UMTS1
UMTS2
16
14
VC1
VC2
13
12
VC3
VC4
11
10
VDD
21
GND5
23
GND6
24
26
GND7
27
GND8
GND9
28
GSM1800RX1
1
2
GSM1800RX2
GSM1800_1900TX
22
GSM1900RX1
3
4
GSM1900RX2
7
GSM850RX1
GSM850RX2
8
25
GSM850_900TX
GSM900RX1
5
6
GSM900RX2
17
LMSP4LMA-573TEMP
FL100
19
ANT
GND1
9
GND2
18
20
GND3
GND4
2.2KR113
L123
47nH
C167
NA
10R132
2.7nH
C180
C176
2.7p
68p
C149
L146
47nH
8.2p
48
3
VDDA2
VDDA3
8
VDDA4
11
16
VDDA5
21
VDDA6
VDDA7
26
VDDA8
31
36
VDDA9
22
VDDM1
VDDM2
25
C154
44
20
RX_IM
19
RX_IP
RX_QM
18
17
RX_QP
2
R_BIAS
33
R_BIAS_GPS
13
R_BIAS_UMTS
SSBI
23
TCXO
45
UMTS_CP_OUT
47
VDDA1
1
VDDA10
39
VDDA11
40
42
VDDA12
46
VDDA13
VDDA14
GPS_PLNA_IN
GPS_PLNA_OUT
35
GRX_IM
30
GRX_IP
29
28
GRX_QM
27
GRX_QP
HB_INM
6
7
HB_INP
15
HB_LNA_IN
HB_LNA_OUT
9
LB_INM
4
5
LB_INP
LB_LNA_IN
14
LB_LNA_OUT
10
12
NC1
NC2
43
NC3
U106
RFR6275
BLANK
34
GND
24
49
GND_SLUG
GPS_CP_OUT
41
GPS_INM
38
37
GPS_INP
32
22nH
L121
51
R131
R128 11.8K
NA
L103
3
O1
4
O2
C172
4p
SAFEB881MFM0F00
FL104
2
G1
5
G2
1
IN
0.01u
C158
NA
C138
C159
C136
22p
6p
22p
C105
33u
C129
C189
120p
22p
100p
C134
NA
C930
C150
C933
R121
110
NA
1p
R106
110
C119
150p
C181
C144
33p
0.1uC124
L906 1.2nH
C168
0.01u
C177
1.5p
L112
NA
0.1uC126
34
WMIX_INP
180p
C103
VDDA13
48
49
VDDA14
VDDA2
6
8
VDDA3
VDDA4
9
15
VDDA5
VDDA6
16
VDDA7
19
20
VDDA8
VDDA9
28
17
VDDM
5
VTUNE1
VTUNE2
18
WLNA_IN
26
WLNA_OUT
29
WMIX_INN
35
11
RX_QN
RX_QP
103
R_BIAS1
27
R_BIAS2
14
SBDT
TCXO
7
TEST
21
50
TX_IN
51
TX_IP
TX_QN
52
53
TX_QP
56
VCONTROL
VDDA1
4
41
VDDA10
45
VDDA11
47
VDDA12
2
ENV_LNP
ENV_OUT
55
30
GCELL_INN
31
GCELL_INP
GND
25
37
GPCS_INN
GPCS_INP
36
46
HB_RF_OUT1
44
HB_RF_OUT2
LB_RF_OUT1
43
42
LB_RF_OUT2
57
PGND
PWD_DET_IN
40
RF_ON
24
RX_IN
13
RX_IP
12
U100
RTR6275
23
CAL_INN
CAL_INP
22
DAC_REF
54
39
DCS_INN
DCS_INP
38
33
EGSM_INN
EGSM_INP
32
ENV_LNN
1
C110
C178
2.2n
180p
180p
L106
C108
3.3nH
L136
1.2nH
C145
27p
C127
56p
CP0402A1880EL
U104
4
50OHM COUP
3
IN
2
OUT
1
2.2K
R125
82
R116
68p
C153
R117
82
NA
100p
L122
C121
4
50OHM COUP
3
IN
2
OUT
1
4.7nH
L104
CP0402A0836BNTR
U102
1000pC164
R104 680
1.2nH
68nH
L143
L907
G6 G7
RX TX
ACMD-7402-TR1G
FL102
ANT
G1 G2 G3 G4 G5
15nHL109
4p
39p
C107
C148
ANT
G1
G2
2.2u
C120
UFL-R-SMT10
SW101
0.1u
C130
GSM_PA_EN
+VPWR
GSM_PA_RAMP
DCS_PCS_TX
GSM_PA_BAND
RBR1000_TCXO
VREG_RF_SMPS
WCDMA_850_TX_OUT
VREG_W
WCDMA_1900
VREG_RF_SMPS
VREG_TCXO_2.85V
VREG_W
VREG_RF_SMPS
PA_ON1
PA_R0
PA_ON2
+VPWR
WCDMA_1900
RX_WCDMA_1900
RFR6275_TCXO
TCXO_BT
WCDMA_1900_TX_OUT
WCDMA_1900_TX_OUT
DCS_PCS_TX
GSM_TX
VREG_MSMP_2.8V
HDET
VREG_RF_SMPS
VREG_SYNTH_2.6V
RX_WCDMA_1900
RX_WCDMA_850
SSBDT_RFR
RX_IM
RX_IP
RX_QM
RX_QP
VREG_MSMP_2.8V
TX_ON
RX_IM
RX_IP
RX_QM
RX_QP
SSBDT_RTR
RTR6275_TCXO
TX_IM
TX_IP
TX_QM
TX_QP
TX_AGC_ADJ
WCDMA_850_TX_OUT
RFR6275_TCXO
TRK_LO_ADJ
TCXO_PM
RTR6275_TCXO
GSM_TX
GSM_SAW_SW_MODE
RX_WCDMA_850
WCDMA_850
HDET
WCDMA_850
ANT_SEL2
ANT_SEL0
ANT_SEL1
ANT_SEL3
DAC_REF
7. CIRCUIT DIAGRAM
LGE Internal Use Only
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Only for training and service purposes