Globalsat EB-3531 - Application Guideline

EB-3531
Specifications are subject to be changed without notice.
Page 8 of 21
Version 1.2.1
 Application Guideline
Application Circuit
1.
D1
RB521S
GPS_3V3
M1
EB-3531
1
2
3
4
5
21
6
7
8
9
10 11
12
13
14
15
22
16
17
18
19
20
RXB
TXB
1PPS
TXA
RXA
GND
NC
GPIO0
GPIO1
RF_PWR
ON_OFF VBAT
VCC
GPIO13
GPIO14
GPIO15
GND
BOOTSEL
VCC_RF
GND
RF_IN
GND
MS518S-FL35E
BATTER Y
12
R6
270R
1 2
TXA
D2
RB512S
RXA
L3
BLM18AG121SN1D
RF Switch
24-20003-12030N
1
2
1
2
50 Ohm Micro strip line
C7
10UF
C5
1UF
1 2
J1_I-PEX connect
External antenna
12
GPS_3V3
C6
0.1UF
1 2
50 Ohm Micro
strip line
L4
BLM18AG121SN1D
2.
VIN
C2
10UF/16V
C3
470PF
U1
XC6209B332MRN 3.3V
1
2
43
5
VIN
GND
NCCE
VOUT
C1
22UF/10V
GPS POWER
GPS_3V3
L1
BLM18AG121SN1D