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12
MEB-1000 User Manual
14 N.C
15 GND G Ground Reference Ground
16 GND G Ground Reference Ground
17 GPS_RF_IN I GPS Signal input 50 Ω @1.57542GHz
18 GND G Ground Reference Ground
19 V_ANT_IN I Active Antenna
Bias voltage
Receiving DC power supply for active
antenna bias.
20 VCC_RF_OUT O Supply Antenna
Bias voltage
%585.2
±
=
VV
O
Current<35mA
21 V_RTC_3V3 I Backup voltage
supply
10uACurrent
3.6V~1.6 DC
≤
+
+
22 Reset I Reset (Active
low)
VVVVV
ILIH
8.00.3V- 26.3 ≤≤≥≥
23 N.C
24 N.C
25 GPIO4 I/O General purpose
I/O
VVVVV
ILIH
8.00.3V- 26.3 ≤≤≥≥
VVVVV
OLOH
4.00.3V- 4.215.3 ≤≤≥≥
26 GPIO0 I/O General purpose
I/O
VVVVV
ILIH
8.00.3V- 26.3 ≤≤≥≥
VVVVV
OLOH
4.00.3V- 4.215.3 ≤≤≥≥
27 N.C
28 N.C
29 PPS O One pulse per
second
VVVVV
OLOH
4.00.3V- 4.215.3 ≤≤≥≥
30 GND G Ground Reference Ground
31 N.C
V_GPS_3V3(+3.3V DC power Input)
This is the DC power supply input pin for GPS system. It provides voltage
to module.
GND
GND provides the ground .
RXA
This is the main receiver channel and is used to receive software
commands to the board from PowerGPS software or from user written