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3. TECHNICAL BRIEF
ͽͶ͑ͺΟΥΖΣΟΒΝ͑ΆΤΖ͑ΟΝΪ
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Figure 3.3.2 Band SW Logic Table
Figure 3.3.3 FEM CIRCUIT DIAGRAM
3. TECHNICAL BRIEF
1. RX1, RX2, RX3, and RX4 are broadband receive ports and each supports the EGSM, GSM850, PCS, and DCS bands.
10
R327
DNI
C359
1
03
U
21
11
10
9
8
7
31
6
4
1
5
51
4
61
3
71
2
18
1
19
20
21
22
23
GND_SLUG
VRAMP
TX_ENABLE
GPCTRL0
GPCTRL1
1DNG
VBATT
2DNG
2LRTCPG
BL_NIFR
9DNG
3DNG
8DNG
BH_NIFR
T
NA
4DNG
4XR
GND5
GND6
GND7
RX1
RX2
3XR
33p
C302
303C
p3
3
p
3
3
4
03
C
L301 3.3n 3.3nL302
22pC343
3.3nL303
1n
L308
1p
C305
L306 3.3n
C314
1.5p
C315
39p
10n
C316
C317
4.7u
1n
C318
1n
C319
DNI
C392
VBAT
C322
33p
1n
C323
33p
C325
1n
C326
4.7u
C327
56pC306
VLOGIC
BS2
BS1
TX_EN
GSM_OUT
DCS_PCS_OUT
TX_RAMP