- 137 -
HIGH
TCXO Circuit
GSM 850/GSM 900 TX
LOW
LOW
LOW
GSM850(869-894 MHz)
DCS(1805-1880 MHz)
GSM 900 RX
ANT_SEL0
TQM7M5008
(1608)
SFAY0008601
GSM 1900 RX
LOW
HIGH
GSM 1800/GSM 1900 TX
ANT_SEL1
HIGH
HIGH
LOW
MODE
PCS(1930-1990 MHz)
DCS/PCS
VTUNE-Connected directly to GND
3 dB
LOW
HIGH
HIGH
(1%)
3 dB
GSM_PA_BAND
LOW
-
Rev.F
-
(1%)
GSM
GSM 850 RX
GSM 1800 RX
LOW
ANTENNA SWITCH MODULE LOGIC
SFSY0030301
18nH
L514
6.8nH
L505
L508
6.8nH
C505
0.1u
1.5p
GSM850_RX2
2
3
GSM900_RX1
GSM900_RX2
4
VC1
10
11
VC2
VDD
12
C509
ANT
20
9
GND1
13
GND2
GND3
14
16
GND4
18
GND5
19
GND6
GND7
21
GND8
22
15
GSM1800_1900_TX
5
GSM1800_RX1
GSM1800_RX2
6
7
GSM1900_RX1
GSM1900_RX2
8
GSM850_900_TX
17
1
GSM850_RX1
FL502
LMSP43QA-539-TEMP
0.1u
C524
smd_1608h_9_r
10u
C519
0.1u
R501
C525
R509
100
12K
5.1
18nH
L511
R507
33p
C554
R515
300
R511
18
L502
C535
100nH
R512
0.01u
300
L501
15nH
680
R502
C541
15p
C513
VBAT
33p
1000p
C514
C539
3.3p
6p
C507
2.2
R506
NA
C506
15nH
NA
L504
C553
1000p
C536
L510
NA
0.1u
R516
C530
100ohm
R517
300
100p
C521
ANT501
C540
R504
33p
VRF_SMPS
2.2
C508
180p
R500
0
C503
56p
L512
C551
3.3nH
0.01u
3300p
ANT500
C512
100p
C548
1u
C518
DCS_PCS_OUT
15
5
GND1
GND2
8
10
GND3
GND4
11
GND5
13
GND6
14
GND7
16
17
GND8
7
GSM_IN
9
GSM_OUT
TX_EN
3
4
VBATT
12
VCC
VRAMP
6
U501
TQM7M5008
2
BS
1
DCS_PCS_IN
VSYNT_2.85V
1000p
C542
300
R513
C538
68p
0.1u
C531
C533
100p
18nH
12nH
L507
L509
0
R518
0.1u
C528
33p
C537
C515
VTCXO_2.85V
22p
4p
C510
C511
DNI
180p
1000p
R505
VTUNE1
5
18
VTUNE2
26
WLNA_IN
29
WLNA_OUT
35
WMIX_INN
WMIX_INP
34
C520
VCONTROL
56
4
VDDA1
VDDA10
41
VDDA11
45
VDDA12
47
48
VDDA13
VDDA14
49
6
VDDA2
VDDA3
8
9
VDDA4
VDDA5
15
16
VDDA6
19
VDDA7
VDDA8
20
28
VDDA9
VDDM
17
PGND
57
40
PWD_DET_IN
24
RF_ON
13
RX_IN
12
RX_IP
RX_QN
11
10
RX_QP
R_BIAS1
3
R_BIAS2
27
SBDT
14
7
TCXO
21
TEST
TX_IN
50
TX_IP
51
52
TX_QN
TX_QP
53
DCS_INN
39
38
DCS_INP
EGSM_INN
33
32
EGSM_INP
1
ENV_LNN
ENV_LNP
2
55
ENV_OUT
GCELL_INN
30
GCELL_INP
31
25
GND
GPCS_INN
37
36
GPCS_INP
HB_RF_OUT1
46
HB_RF_OUT2
44
43
LB_RF_OUT1
LB_RF_OUT2
42
RTR6275
U500
CAL_INN
23
22
CAL_INP
54
DAC_REF
180p
C500
C522
NA
0.1u
C527
10
R508
0.1u
0.1u
C526
C532
4
VCC
1
VCONT
C534
22u
EXSK0007802
TG-5010LH_19_2M_75A
19.2MHz
X500
GND
2
OUT
3
R510
2.2K
5.1
R503
C529
VRF_SMPS
100p
L500
3.3nH
180p
C501
18
EFCH836MTDB1
FL501
2
G1
3
G2
5
G3
1
IN
4
O1
R514
C552
1000p
C544
0.1uF
L503
6.8nH
12p
C517
L513
4.7nH
L506
VMSMP_2.6V
0.1u
6.8nH
SW500
ANT
G1
G2
RF
C523
ENWY0002301
KMS-506
ANT_SEL1
ANT_SEL0
RTR_TXIP
RTR_TXIM
RTR_TXQM
VRF_SMPS_SENSE
TCXO_PM_19.2MHz
RTR_TRK_LO_ADJ
GSM_PA_BAND
GSM_PA_EN
RTR_TXQP
GSM_PA_RAMP
GSM_TX
DCS_PCS_TX
RTR_RXQP
RTR_RXQM
RTR_RXIP
RTR_RXIM
TCXO_RTR_19.2MHz
RTR_DAC_REF
RTR_TX_ON
SSBDT_RTR
TCXO_RTR_19.2MHz
RTR_TX_AGC_ADJ
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
