UC-00-M15 EN R1.4
Technical Specifications
12
No Name
I/O
Electrical Level
Description
11 V_BCKP
I
1.65V~3.6V
When the main power supply VCC of the
module is cut off, V_BCKP supplies
power to RTC and SRAM;
Current value is about 50μA.
V_BCKP is necessary for hot start. If you
do not use the hot start function,
connect V_BCKP to VCC. Do NOT leave it
floating or connect it to ground.
12 NC
13 GND
—
Ground
14 GND
—
Ground
15 GND
—
Ground
16 RF_IN
I
GNSS signal input
17 GND
—
Ground
18 VCC_RF
O
3.0V~3.6V
RF power supply output, leave this pin
floating if idle
19 V_ANT
I
Antenna bias voltage, ground this pin if
idle
20 ANT_DET_N I
LVTTL
Open circuit detection of the active
antenna
21 NC
22 NC
23 NC
24 NC
25 NC
26 NC
27 NC
28
TIME
PULSE
O
LVTTL
1PPS, leave this pin floating if idle
