Meb-1000 user manual – RoyalTek MEB-1000 User Manual
Page 16
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
%
5
85
.
2
±
=
V
V
O
Current<35mA
21 V_RTC_3V3 I Backup
voltage
supply
10uA
Current
3.6V
~
1.6
DC
≤
+
+
22 Reset
I Reset
(Active
low)
V
V
V
V
V
IL
IH
8
.
0
0.3V
-
2
6
.
3
≤
≤
≥
≥
23 N.C
24 N.C
25 GPIO4
I/O
General
purpose
I/O
V
V
V
V
V
IL
IH
8
.
0
0.3V
-
2
6
.
3
≤
≤
≥
≥
V
V
V
V
V
OL
OH
4
.
0
0.3V
-
4
.
2
15
.
3
≤
≤
≥
≥
26 GPIO0
I/O
General
purpose
I/O
V
V
V
V
V
IL
IH
8
.
0
0.3V
-
2
6
.
3
≤
≤
≥
≥
V
V
V
V
V
OL
OH
4
.
0
0.3V
-
4
.
2
15
.
3
≤
≤
≥
≥
27 N.C
28 N.C
29
PPS
O
One pulse per
second
V
V
V
V
V
OL
OH
4
.
0
0.3V
-
4
.
2
15
.
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