LG H990ds - Page 112

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DRAWN BY
SIZE
DWG NO
REV
TITLE
SHEET
of
A2
LG Electronics
Date
LGE Internal Use Only
Drawing Date
PDM NUMBER
Rev
S3_MSM8994
User Name
2226
< 1-2-4-3_PT_APT_QFE2101 >
Rev_0.3
QFE2101 for MMPA_1, HMPA
Bypass booster FAN48623 for RF
+VPWR
R1800
10K
+VPWR
+VPWR_BOOST_BYPASS_RF
C1800
10u
2mm
0.05mm
1.8mm
BOOST_BYP_BYP
EN BYP_N VSEL
Vout
0
1
1
1
X X
1
1
0
0
1
X
Boost bypass disabled
For Vin < 3.5V, Vout = 3.5V (Boost mode)
For Vin > = 3.5V, Vout = Vin(bypass mode)
For Vin < 3.7V, Vout = 3.7V (Boost mode)
For Vin > = 3.7V, Vout = Vin (bypass mode)
Vout = Vin (forced bypass mode)
100KR1802
R1804 100K
R1803 100K
R1801
DNI
12/22
C1803
22u 22u
C1802
DNC2SDATA
C_GSM2
GND
DNC1
AMP_OUT
SCLK
USID
GND_BUCK
VDD_BATT
VSW_BUCK
BYP_LOAD
VDD_1P8
C_GSM1
VDD_BUCK
C1605
4.7u
QFE2101
U1601
15
5
10
12
14
13
11
8
4
9
1
7
6
3 2
+1V8_VREG_S4A
+VPWR_BOOST_BYPASS_RF
RFFE2_CLK
RFFE2_DATA
L1601: Buck inductor follow the recommendndation, 80-NF713-111 P_15
C1607: should be 0402 (inch) for better high freq. filtering, Close to Pin11, Pin15
+VPA0
1.5u
L1601
C1606
4.7u
C1607
10u
16.04.26 Global RFFE3 to RFFE2
U1800
B1
D3C1
C3
C2
B2
A4
C4
A2
D2
D4
D1
A3 B3
A1
B4
VOUT2
EN
VOUT1VIN1
AGND
PGND3
PGND1
PG
SW2
VIN2
NC1
NC2
SW1
BYP PGND2
VSEL
FAN48623UC35X_SN00380
C1699
DNI
16.05.19 DNI CAP ADDED
L1800
470n
16.06.01
112