- 145 -
HIGH
F
LOW
LOW
5
5
15
Date
C
DRAWING
LOW
LOW
8
(VDDA_32_34_36)
Designer
B
DCS 1800 RX
LOW
HIGH
925-960 MHz
9
A
4
F
C
7
HIGH
(1%)
HIGH
C
LOW
4
(2012)
MODEL
NO.
WCDMA
Sheets
(VDDA_24_26_27)
(1%)
F
LG Electronics Inc.
Rev_1.
1
(1%)
(1%)
6
(1%)
D
HIGH
DCS1800/PCS1900
Checked
E
LOW
D
A
E
1
LG Electronics Inc.
(PPS)
ANT_SEL2
GSM/DCS/PCS
DRAWING
GSM 900 RX/WCDMA
1805-1880 MHz
HIGH
LOW
HIGH
(VDDA_7_45)
HDET
D
LOW
HIGH
GSM
2
ANT_SEL0
DCS1800/PCS1900 TX
D
OFF
Section
(1%)
1930-1990 MHz
LOW
C
3
E
1
E
GSM900
GSM_PA_BAND
B
LOW
Approved
HIGH
2
TX_VCO_EN_1_N
14
TX_VCO_EN_0_N
LOW
12/10
2005
J.H. KIM
RF
1/6
U890
LG(42)-A-5505-10:01
(2012)
(PPS)
Sign & Name
MODE
LOW
ANT_SEL1
PCS 1900 RX
HIGH
16
GSM 900 TX
Sheet/
DCS/PCS
R102
0
1000p
C105
C170
0.1u
C150
0.1u
6.8nH
L119
R114
100
100
R126
11K
R134
12p
C158
C181
0.1u
0.01u
R108
6.2K
C174
GND
2
OUT
3
4
VCC
1
VCONT
C117
10u
TG-5001LA-19.2MHz
X100
19.2MHz
C163
0.1u
24
R109
470p
C84
C112
1000p
C113
0.1u
G2
G3
G4
G5
G6
G7
RX
TX
100p
C168
ACMD-7601
FL102
ANT
G1
R121
51
0.1u
C186
L128
3.9nH
10p
C180
51
R136
L115
5.1nH
33p
C154
L118
NA
15p
10nH
L100
C148
R139
4.7K
2.2uH
L104
C192
0.068u
220
R118
R133
470K
0.01u
C145
12p
15p
C193
C149
1u
C119
0
R135
C102
33p
2.2nH
L125
L109
47nH
22n
27p
C128
C130
C189
390p
L123
33nH
NA
C164
R112
100
270
R127
C196
18
19
GND6
12
RX_DCS1
RX_DCS2
13
16
RX_EGSM1
RX_EGSM2
17
14
RX_PCS1
RX_PCS2
15
TX_DCSPCS
3
TX_EGSM
1
8
UMTS
10p
D1040
U100
7
ANT
2
CTRL1
4
CTRL2
CTRL3
11
20
CTRL4
GND1
5
6
GND2
GND3
9
10
GND4
GND5
10u
C178
0.1u
C198
C133
82p
9.1nH
L117
51
R116
33p
C141
3
O1
4
O2
C82
3.9n
B7827
FL100
2
G1
5
G2
1
IN
1u
C197
LMV225TLX
U105
B1
GND
OUT
B2
RFIN_EN
A1
VDD
A2
C107
0.1u
R138
3.3K
33p
C109
R107
6.2K
100
R113
C185
7.5nH
0.1u
0.01u
L113
C83
2.2uH
L106
C81
10p
FB100
5.1nH
L110
33p
C106
0
R131
R130
10K
C155
1
OUT_GSM
9
SW1
11
SW2
3
VB
VC
10
8.2p
MQW5V0C869M
GND1
2
GND2
4
GND3
6
7
GND4
GND5
8
GND6
12
13
GND7
GND8
14
5
OUT_DCSPCS
100nH
L130
U103
R125
0
VDDRF3
0.01u
C172
42
SBDT
43
44
SBST
33
TCXO
25
UMTS_TUNE
VDDA1
7
24
VDDA2
26
VDDA3
VDDA4
27
32
VDDA5
VDDA6
34
36
VDDA7
VDDA8
45
VDDM
41
VDDRF1
3
12
VDDRF2
19
ILNA_IN
ILNA_OUT
14
8
IMIXM
IMIXP
9
28
LO_OUT
49
PGND
15
PLNA_BIAS
PLNA_IN
16
PLNA_OUT
13
10
PMIXM
PMIXP
11
RX_IM
21
20
RX_IP
23
RX_QM
RX_QP
22
46
R_BIAS
SBCK
2
29
CP_DUMP
CP_OUT
30
FAQ
31
GLNA_BIAS
48
47
GLNA_IN
1
GLNA_OUT
GMIXM
5
6
GMIXP
4
GND
GPS_TUNE
35
39
GRX_IM
40
GRX_IP
37
GRX_QM
GRX_QP
38
ILNA_BIAS
17
18
RFR6250E
U106
BLANK
C184
10p
2.7nH
L108
4.7
47p
C120
R128
R103
11K
10u
C179
5.6p
C160
C123
0.01u
3.9n
ECHU1C392JX5
C129
L101
2.7nH
47nH
L112
C151
10
R104
100p
1000p
C173
L121
10nH
C131
C152
0.1u
5.6nH
100p
L129
C188
100p
ANT100
1.2p
C194
4.7nH
0.1u
L126
1200p
C115
C190
L107
2.2uH
15
R111
C169
100p
C195
5p
680p
NA
C183
C101
0.1u
C85
R100
10
C127
1000p
C116
270
R120
33p
C134
5
31
0.01u
TR100
UMC4N
2
4
EFCH1950TDC1
G1
2
G2
5
G3
3
IN
1
4
OUT
L122
3.9nH
FL101
1000p
C157
150
R117
VDDA8
27
VDDA9
31
VDD_M
43
8
VTUNE_REF
15p
C139
VCO_TUNE
9
4
VDDA1
36
VDDA10
VDDA11
39
41
VDDA12
48
VDDA13
VDDA14
50
52
VDDA15
54
VDDA16
VDDA17
56
VDDA2
5
VDDA3
7
10
VDDA4
VDDA5
15
VDDA6
23
26
VDDA7
32
RX_VCO_IN
33
R_BIAS
44
SBCK
45
SBDT
SBST
46
6
TCXO
TX_IN
19
TX_IP
18
TX_MOD_CP
40
17
TX_QN
TX_QP
16
42
TX_VCO_FB
UMTS1900_OUT
53
UMTS2100_OUT
51
55
UMTS800_OUT
49
VCONTROL
FAQ1
3
FAQ2
28
57
GND_SLUG
GSM1800_INN
34
35
GSM1800_INP
GSM1900_INN
24
25
GSM1900_INP
21
GSM850_INN
22
GSM850_INP
GSM900_INN
38
37
GSM900_INP
RF_ON_TX_ON
47
RX_IN
14
13
RX_IP
12
RX_QN
RX_QP
11
RTR6250D
U101
CP1
2
30
CP2
1
CP_HOLD1
29
CP_HOLD2
20
DAC_REF
C122
0.01u
33p
C132
C147
10u
10nH
L116
SW100
KMS-512
ANT
G1
G2
RF
C191
27p
3.9nH
L124
47nH
L114
C121
C146
10u
22p
100p
C187
2.7nH
L131
C111
100p
0.1u
C86
6
R132
80.6K
GND1
7
GND2
GND3
8
9
GND4
GND5
10
12
GND6
GND7
13
14
GND8
16
GND9
GSM_IN
4
GSM_OUT
11
PGND
21
RSVD_GND
19
20
VAPC
VBATT
17
VCC1A
2
VCC1B
U102
SKY77328
1
BS
3
DCS_PCS_IN
DCS_PCS_OUT
15
18
ENABLE
5
C165
2.2u
150p
C153
C104
0.1u
4700p
C137
R137
0
1K
R122
R106
82
C124
68p
0.01u
C118
RT100
68K
1000p
C162
R101
0
10u
L120
9.1nH
C135
33p
C110
C114
33p
C199
10p
ANT102
R115
200
R119
100
0.1u
15
VCC1B
7
VCC2A
13
VCC2B
9
6
VCONT
VREF
5
C80
SKY77410
BGND
17
2
GND1
4
GND2
8
GND3
10
GND4
12
GND5
14
GND6
NC
1
RF_IN
3
RF_OUT
11
16
VBIAS
VCC1A
C176
U104
0.01u
R129 1.8K
0
R123
R110
47
0
R124
0.1u
C144
C182
0.1u
33p
C140
15K
R105
7.5nH
L111
C166
0.1u
100p
C108
33p
C161
C177
100p
0.01u
C175
C159
100p
12p
C142
3.6nH
L102
L105
3.6nH
C136
33p
C167
100p
C143
0.1u
L127
3.3nH
1000p
C125
C156
0.1u
15p
C100
6.8p
C103
C138
150p
0.1u
C171
C126
120p
2.2uH
L103
ANT_SEL2
ANT_SEL0
ANT_SEL1
VREG_W_PA
TX_AGC_ADJ
+VPWR
PA_ON
VREG_RFTX_2.85V
TX_IP
TX_QM
TX_QP
ILNA_OUT
VREG_TCXO_2.85V
TCXO_BT_IN
VREG_RFRX_1_2.85V
DAC_REF
VREG_RFTX_2.85V
TX_IM
VREG_RFTX_2.85V
VREG_RFTX_2.85V
VREG_TCXO_RFR
VREG_RFTX_2.85V
ILNA_OUT
PA_ON
VREG_RFTX_2.85V
PA_THERM
VREG_TCXO_2.85V
VREG_TCXO_RFR
VREG_MSMP_2.7V
VREG_SYNTH_2.85V
VREG_RFRX_0_2.85V
RX_IP
RX_IM
IMT_RX_P
IMT_RX_M
HDET1
VREG_RFTX_2.85V
TCXO_PM
IMT_RX_M
IMT_RX_P
SBST
SBDT
SBCK
RX_QP
RX_QM
GSM_PA_RAMP
GSM_PA_EN
GSM_PA_BAND
+VPWR
VREG_RFTX_2.85V
GSM_TX_VCO_0_EN_N
GSM_TX_VCO_1_EN_N
VREG_RFTX_2.85V
SBCK
SBDT
SBST
VREG_RFTX_2.85V
VREG_MSMP_2.7V
TRK_LO_ADJ
RF_ON_TX_ON
TX_AGC_ADJ
RX_IM
RX_IP
RX_QM
RX_QP
7. CIRCUIT DIAGRAM
Содержание U890
Страница 1: ...Date April 2006 Issue 1 0 Service Manual Model U890 U890c Service Manual U890 U890c ...
Страница 3: ... 4 ...
Страница 20: ...3 TECHNICAL BRIEF 21 ...
Страница 46: ...3 TECHNICAL BRIEF 47 Figure PM6650 2 Functional Block Diagram ...
Страница 70: ...4 TROUBLE SHOOTING 71 4 2 SIGNAL PATH ...
Страница 109: ...4 TROUBLE SHOOTING 110 CN600 50pin LCD connector CN901 C907 C911 FB901 FB902 ...
Страница 115: ...4 TROUBLE SHOOTING 116 C226 C227 for MIC serial capacitor ...
Страница 118: ...4 TROUBLE SHOOTING 119 Q400 Q401 Q402 VBATT GND ...
Страница 139: ...Table 2 1 1 RF Block Component 6 BLOCK DIAGRAM 140 ...
Страница 140: ...6 BLOCK DIAGRAM 141 6 2 Interface Diagram U890 Interface Diagram ...
Страница 142: ...6 BLOCK DIAGRAM 143 Top Side ...
Страница 143: ...6 BLOCK DIAGRAM 144 Bottom Side ...
Страница 152: ... 153 8 pcb layout ...
Страница 153: ... 154 8 pcb layout ...
Страница 154: ... 155 8 pcb layout ...
Страница 155: ... 156 8 pcb layout ...
Страница 156: ... 157 8 pcb layout ...
Страница 157: ... 158 8 pcb layout ...
Страница 163: ...9 CALIBRATION 164 9 3 HOT KIMCHI Example Choose_U890 ...
Страница 164: ...9 CALIBRATION 165 Click APPLY button Click START button ...
Страница 165: ...9 CALIBRATION 166 Click Run button to lunch RF AUTOTEST ...
Страница 167: ... 168 ...
Страница 191: ...Note ...
Страница 192: ...Note ...