UNICORECOMM UM960 User Manual

8 Hardware UC-00-M34 EN R1.0
No.
Pin
I/O
Description
9
VCC_RF
1
O
External LNA power supply
10
GND
—
Ground
11
ANT_IN
I
GNSS antenna signal input
12
GND
—
Ground
13
GND
—
Ground
14
RTK_STAT/LAN_EN
O
RTK_STAT: High level, RTK Fix;
Low level, RTK No Fix
LAN_EN: High level, enable external LNA;
Low level, disable external LNA;
Note: The pin function is configured by protocol.
The default is RTK_STAT.
15
RXD3
I
COM 3 receiving data
16
TXD3
O
COM 3 transmitting data
17
RSV
—
Built-in function; recommended to add a
through-hole testing point and a 10 kΩ pull-up
resistor; cannot connect ground or power
supply or peripheral I/O, but can be floating.
18
SDA
I/O
I
2
C data
19
SCL
I/O
I
2
C clock
20
TXD1
O
COM 1 transmitting data
21
RXD1
I
COM 1 receiving data
22
V_BCKP
I
When the main power supply VCC is cut off,
V_BCKP supplies power to RTC and relevant
register. Level requirements: 2.0 V ~ 3.6 V, and
the working current is less than 60 μA at
25 °C. If you do not use the hot start function,
connect V_BCKP to VCC. Do NOT connect it to
ground or leave it floating.
23
VCC
I
Supply voltage
24
GND
—
Ground
1
Not recommended to take VCC_RF as ANT_BIAS to feed the antenna See section 3.1 for more details.

UNICORECOMM UM960 Specifications

General

Brand	UNICORECOMM
Model	UM960
Category	Control Unit
Language	English