LG KS20 - Page 155

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LGMC
HIGH
14
(1%)
8
(1608)
GSM 900 RX
Thermistor circuit deleted
E
MODE
7
D
3
SFSY0030201
E
6
(1608)
C
1
10dB
WCDMA
E
WCDMA
HIGH
C
GSM(925-960 MHz)
7
WCDMA LNA Circuit
4
5
Rev.H
Rev.F
-
1
D
B
TQM7M5008
DCS(1805-1880 MHz)
ANT_SEL1
4
F
C
ANT_SEL2
HIGH
13
GSM 1800/GSM 1900 TX
ANTENNA SWITCH MODULE LOGIC
F
Rev.F
-
GSM 1900 RX
LOW
GSM
GSM 1800 RX
2
C
LOW
PCS(1930-1990 MHz)
HIGH
2
-
3 dB
LOW
SMPY0015501
LOW
129
LOW
LG Electronics Inc.
5
D
E
SFAY0010001
GSM_PA_BAND
16
GSM 850/GSM 900 TX
LOW
GSM 850 RX
GSMLOW
LG(42)-A-5505-10:01
LOW
As close as possible
3
11 15
LOW
A
(1%)
3 dB
D
LOW
F
DCS/PCS
LOW
VTUNE-Connected directly to GND
A
LOW
8
HIGH
HIGH
ANT_SEL0
B
HIGH
TCXO Circuit
6
20dB
10
LOW
9
C565
100p
C501
180p
14
GND6
16
GND7 GND8
17
GSM_IN
7
GSM_OUT
9
3
TX_EN
VBATT
4
VCC
12
6
VRAMP
33p
C516
TQM7M5008
U501
BS
2
DCS_PCS_IN
1
15
DCS_PCS_OUT
GND1
5
8
GND2
GND3
10
11
GND4
13
GND5
27nHL509
C522 NA
1nH
L511 27nH
L520
3p
C554
10
L505 5.6nH
R508
ANT500
33p
C561
VDD_RX
33p
C560
33p
C540
R513
300
C528 0.1u
0.5p
C546
2.2K
R510
FL503
3
ANT
4
PGNDRX
1
2
TX
SDMY0001301
ACMD-7602
18
R511
NA
C564
4.7p
C539
C536
1000p
C535
0.01u
0.1uF
C544
5.6nHL503
C510 4p
33p
C514
DNIR505
100p
L522
4.7nH
C548
5.1
33p
C503
R503
L500
3.9nH
L507
12nH
C517
12p
4.7p
C502
C527
0.1u
15nH
L504
33nH
L510
100pC529
100p
C557
1nH
L519
C566
100p
0.1u
5.6nH
L508
C524
6pC507
L514
12nH
33p
C515
ANT501
VTCXO_2.85V
C521 100p
6.8nH
L513
C534
22u
L516
1nH
0.1uC526 0.1uC532
C511
180p
C543
22p
C520
0.1uC530
1000p
C519
10u
smd_1608h_9_r
0.1uC525
2.2
L523
10nH
R506
220p
C556
2.7nH
180p
VRF_SMPS
L521
C500
C509
0.1u
VBAT
1u
VMSMP_2.6V
C518
100nH
100
R509
VDD_RX
L502
R507 5.1
100p
C533
0.1uC523
12K
L524
R501
10nH
C504 6p
15p
C541
R512
300
C559
33p
FL501
EFCH897MTDB1
G1
2
G2
3
G3
5
IN
1
O1
4
91
C553
33p
R520
VPWR
33p
C558
R521
91
33p
L512
2.2nH
C549
300
13
R516
4
GND4
5
8
GND5
10
GND6
12
GND7
GND8
17
18
GND9
7
NC
22
PCS_RX1
PCS_RX2
21
PGND1
25
PGND2
26
9
UMTS_TX_RX
14
VC1
15
VC2
VC3
16
VDD
ANT
11
DCS_PCS_TX
3
DCS_RX1
20
DCS_RX2
19
EGSM_RX1
24
23
EGSM_RX2
6
EGSM_TX
1
GND1
2
GND2
GND3
TG-5010LH_19_2M_75A
EXSK0007802
2
GND
3
OUT
VCC
4
VCONT
1
FL500
LSHS-M090UE
C563
X500
19.2MHz
51
1.5p
R518
WMIX_INN
35 34
WMIX_INP
3300pC512
47
VDDA12
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
RX_IP
12
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
ENV_LNN
1
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
RTR6275
23
CAL_INN
CAL_INP
22
DAC_REF
54
39
DCS_INN
DCS_INP
38
33
EGSM_INN
EGSM_INP
32
0
R500
U500
2.2
VRF_SMPS
R504
15nH
C537
22p
L501
VMODE0
3
VMODE1
L518
3.3nH
U503ACPM-7381
6
GND1
GND2
7
GND3
9
PGND
11
RFIN
2
8
RFOUT
VCC1
110
VCC2
VEN
5
4
KMS-506
ENWY0002301
ANT
G1
G2
RF
EFCH2140TDE1
G1
2
G2
5
IN
1
O1
3
O2
4
SW500
5.6nH
FL502
1000p C552
L506
L517
1nH
NA
0.75p
C506
10u
C550
C555
EFCH1950TDF1
G1
2
G2
3
G3
5
IN
1
O1
4
75
R519
FL504
R502
680
C542
1000p
180p
C508
VSYNT_2.85V
R514
L515
2.7nH
18
300
R515
R517
100ohm
C513 1000p
33p
C547
0.5p
68p
C538
C545
C505
1.5p
U502
SCDY0003402
50OHM
4 3
COUP IN
2
OUT
1
0.01u
C531 0.1u
C551
RTR_TXIM
RTR_TXQM
VRF_SMPS_SENSE
ANT_SEL2
ANT_SEL1
ANT_SEL0
PWR_DET
GSM_PA_BAND
GSM_PA_EN
RTR_TXQP
RTR_TXIP
WCDMA_MIX_IN_P
WCDMA_MIX_IN_M
TCXO_RTR_19.2MHz
RX_WCDMA_2100
TCXO_PM_19.2MHz
RTR_TRK_LO_ADJ
WCDMA_PA_ON
WCDMA_PA_R0
GSM_TX
DCS_PCS_TX
RTR_RXQP
RTR_RXQM
RTR_RXIP
RTR_RXIM
WCDMA_2100_TX_OUT
WLNA_OUT
PWR_DET
GSM_PA_RAMP
RTR_DAC_REF
RTR_TX_ON
SSBDT_RTR
TCXO_RTR_19.2MHz
RTR_TX_AGC_ADJ
RX_WCDMA_2100
WLNA_OUT
WCDMA_MIX_IN_M
WCDMA_MIX_IN_P
WCDMA_2100_TX_OUT
GSM_TX
DCS_PCS_TX
7. CIRCUIT DIAGRAM
LGE Internal Use Only
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes