Application, Eb-5662re high performance gps engine board – USGlobalsat EB-5662RE User Manual
Page 7
EB-5662RE
High Performance GPS Engine Board
- 7 -
Application
Application Circuit without ANTENNA Detect Function
WAKE_UP
ON_OFF
RESET
I2C_CLK
I2C_DIO
GPS_3V3
C10
10UF
GPS_3V3
3V3_OUT
C11
10UF
L2
CHOKE RF
R9
2K2/NC
1
2
R10
2K2/NC
1
2
R11
10K
1
2
M1
EB-5662RE
DR_I2C_DIO
1
DR_I2C_CLK
2
TXD
3
RXD
4
VDD
5
VDD
6
GND
7
VDD_3V3
8
NC
9
RESET
10
VBAT
11
NC
12
GND
13
GND
14
GND
15
RF_IN
16
GND
17
VCC_RF
18
V_ANT
19
A_DET_ANT
20
NC
21
NC
22
NC
23
NC
24
ON_OFF
25
WAKE_UP
26
EIT
27
TIMEPLUSE
28
A1
GPS_ANTENNA
1
C9
CAP NP
C8
CAP NP
GPS_3V3
50ohm LINE
1V8
1V8
R12
10K
1
2
RXD
TXA
1PPS OUTPUT
Application Circuit with EXT Antenna Detect Function
WAKE_UP
ON_OFF
RESET
I2C_CLK
I2C_DIO
GPS_3V3
VCC_RF
V_ANT
ANT_DET
C10
10UF
GPS_3V3
Q1
2N3906
Q2
2N3906
3V3_OUT
R13
10R_F
1
2
V_ANT
VCC_RF
R14
47K
1
2
R15
200K
1
2
C11
10UF
L2
CHOKE RF
R9
2K2/NC
1
2
R10
2K2/NC
1
2
R11
10K
1
2
ANT_DET
M1
EB-5662RE
DR_I2C_DIO
1
DR_I2C_CLK
2
TXD
3
RXD
4
VDD
5
VDD
6
GND
7
VDD_3V3
8
NC
9
RESET
10
VBAT
11
NC
12
GND
13
GND
14
GND
15
RF_IN
16
GND
17
VCC_RF
18
V_ANT
19
A_DET_ANT
20
NC
21
NC
22
NC
23
NC
24
ON_OFF
25
WAKE_UP
26
EIT
27
TIMEPLUSE
28
A1
GPS_ANTENNA
1
C9
CAP NP
C8
CAP NP
GPS_3V3
50ohm LINE
1V8
1V8
R12
10K
1
2
RXD
TXA
1PPS OUTPUT