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Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
3. TECHNICAL BRIEF
TU750 A-GPS Schematic
GND
IN
OUT
(BOM change : EXST0002101)
Rev.B
Rev.G
Rev.B
Rev.1.0
Rev.1.0
GPS ANT Vertex
Rev.1.1
Rev.B
C739
smd_0603h_3_r_na
DNI
C738
smd_0603h_3_r
2.2nH
L709
0.1u
SN74LVC1G125DRLR
2
A
GND
3
5
VCC
4
Y
_OE
1
U702
VGPS_2V8
smd_0603h_3_r
C706
0.1u
C726
1u
L707 6.8nH
0.1u
C740
smd_0603h_3_r
100p
L701
CN702
1
220n
C736
2
EN1
EN2
3
5
GND
NC1
4
NC2
6
PGND
9
VIN
1
VOUT1
8
7
VOUT2
U707
RT9011-MGPQW
RN1107
Q701
B
C
E
220n
C737
C715
0.1u
smd_0603h_3_r
C707
47p
U701
ALM-1612
FIL_OUT
43
GND
RF_IN
2
1
S_D
VDD
5
1u
C721
NA
L702
smd_0603h_3_r
C713
0.1u
2.2u
C705
1u
C728
smd_0603h_3_r
0.1u
C727
10
R712
B9416
FL701
2
G1
G2
3
G3
5
IN
4
1
OUT
VBAT
VDDE_1V8
VGPS_1V8
10nH
L703
R702
100K
R701
3.3nH
0.1u
C710
C724
smd_0603h_3_r
10p
VGPS_2V8
VDDE_1V8
VGPS_2V8
2.2u
C709
DNI
R707
smd_0603h_3_r
0.1u
C741
2.2u
C735
DNI
R706
4
VCONT
1
100K
R705
X701
19.2MHz
GND
2
3
OUT
VCC
VGPS_1V8
VGPS_2V8
1u
C714
C723
1u
C701
DNI
DNI
C703
R704
100K
VDDE_1V8
smd_0603h_3_r
0.1u
C722
1
R703
10
CN701
C712
smd_0603h_3_r
C708
0.1u
F7
VSS_DIG1
B1
D2
VSS_DIG2
VSS_DIG3
D5
VSS_DIG4
D7
E4
VSS_LNA
VSS_RF1
E5
VSS_RF2
G4
smd_0603h_3_r
0.1u
C5
D6
TMS
VDD_CAP
E7
VDD_CORE1
B7
VDD_CORE2
G1
VDD_CORE3
G3
VDD_COREREG_IN
D1
C1
VDD_COREREG_OUT
A7
VDD_IO1
VDD_IO2
C2
B6
VDD_LP
B4
VDD_LPREG_OUT
VDD_LP_PLLREG_IN
A6
VDD_PLL
A5
VDD_RF
G5
VDD_RFREG_IN
F4
VDD_VCO
G6
G7
LNA_OUT
MIX_IN_MINUS
F6
E6
MIX_IN_PLUS
NINTR
F1
F3
NRESET
NTRST
C7
OMS0
E3
OMS1
D3
G2
OMS2
POWERON
E2
E1
RTCCLK
F2
RX_HOLD
SYNC
D4
C6
TCK
TDI
B5
TDO
U703
CLK
A4
A3
CNTIN
F5
EXT_LNA_CTRL0
HIF0
C3
C4
HIF1
B2
HIF2
A1
HIF3
HIF4
A2
B3
HIF5
LNA_IN
PMB2525
APP_GP_GPS_PON
RESOUT1_n
ACC_UART3_RX
MCLKSEC
ACC_UART3_RTS
ACC_GPS_START
ACC_UART3_TX
RTCCLK
TX_ADC_STRB
ACC_UART3_CTS
Figure 3-1-17. Schematic of PMB2525