3. TECHNICAL BRIEF
- 3 -
Copyright © 011 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
ͽͶ͑ͺΟΥΖΣΟΒΝ͑ΆΤΖ͑ΟΝΪ
Z\VX[^
Figure 3.3.2 Band SW Logic Table
Figure 3.3.3 FEM CIRCUIT DIAGRAM
3. TECHNICAL BRIEF
1. X = DON’T CARE
2. RX1, RX2, RX3, and RX4 are broadband receive ports and each supports the GSM850, GSM900, DCS, and PCS bands.
The RF7161 also integrates an ESD filter to provide excellent ESD protection at the antenna port.
The RF7161 is designed to provide maximum efficiency at rated POUT.
R414
DNI
GND404
C425
1p
C487
1.2n
1n
C423
L406
8.2n
1n
C452
0.5p
L402
L416
4.7n
SW401
G2
ANT
RF
G1
ANT403
1.2p
C471
GND403
6.8n
C421
7p
C424
C470
DNI
C450
56p
U404
12
11 01 9 8 7
13
6
14
5
15
4
16
3
17
2
81
1
91 02 12 22 32
G
UL
S_
D
N
G
P
M
A
R
V
EL
B
A
N
E_
XT
0L
RT
C
P
G
1L
RT
C
P
G
GND1
TT
A
B
V
GND2
GPCTRL2
RFIN_LB
GND9
GND3
GND8
RFIN_HB
ANT
GND4
RX4
5
D
N
G
6
D
N
G
7
D
N
G
1
X
R
2
X
R
RX3
L408
0.5p
C451
22p
C460
1n
C453
4.7u
1n
C454
L403
3.3n
L404
3.3n
FL402
869M894M,925M960MHz
10
5
6
3
7
2
9
4
8
1
IN_881_5
OUT_881_5
IN_942_5
OUT_942_5
GND1
GND2
GND3
GND4
GND5
GND6
C455
4.7u
33p
C456
C457
33p
33p
C458
C459
33p
L405
1.5n
L409
8.2n
33n
L407
C461
1n
VBAT
1p
C462
C463
1n
1n
C464
1K
R413
C465
10n
39p
C466
L410
12n
C467
33p
FL403
1805M1880M,1930M1990M
10
5
6
3
7
2
9
4
8
1
IN_1842_5
OUT_1842_5
IN_1960
OUT_1960
GND1
GND2
GND3
GND4
GND5
GND6
n2.
2
41
4L
n2.
2
31
4L
BS2
BS1
TX_EN
RX12
RX12X
RX34
RX34X
DCS_PCS_OUT
TX_RAMP
BS3
GSM_OUT
RF PART
LOW
LOW
LOW
GSM850
EGSM
DCS
PCS
LOW
LOW
LOW
TX_EN
LOW
HIGH
HIGH
LOW
HIGH
HIGH
HIGH
LOW
HIGH
BS1
LOW
LOW
LOW
MODE
LOW POWER MODE
RX2(GSM850_RX)
RX1(EGSM_RX)
(TX_ENABLE)
(GPCTRL2)
RX3(PCS_RX)
RX4(DCS_RX)
GSM850/900_TX
DCS/PCS_TX
BS3
LOW
HIGH
LOW
LOW
DCS
PCS
LOW
HIGH
GSM850
EGSM
HIGH
BS2
LOW
LOW
(GPCTRL1)
HIGH
(GPCTRL0)