unicore UM981 User Manual

UC-00-M33 EN R1.0 Introduction 5
Functional Ports
UART × 3
I
2
C
*
× 1
SPI
*
× 1
Slave
CAN
*
× 1
Shared with UART3
1.3 Block Diagram
RF in
SAW
Filter
NebulasIV
GNSS
RF
GNSS
BB
LNA
Interface
PMUInterface
IMU
I
2
C
CLOCK
TCXO
32K
SPI
RESET_N
UART1/2/3
I
2
C
SPIS
PVT/RTK/ERR
EVENT
PPS
Figure 1-2 UM981 Block Diagram
 RF Part
The receiver gets filtered and enhanced GNSS signal from the antenna via a coaxial
cable. The RF part converts the RF input signals into the IF signals, and converts IF
analog signals into digital signals required for NebulasIV
TM
chip (UC9810).
 NebulasIV
TM
SoC (UC9810)
NebulasIV (UC9810) is UNICORECOMM’s new generation high precision GNSS SoC with
*
I
2
C, SPI, CAN: reserved interfaces, not supported currently

unicore UM981 Specifications

General

Brand	unicore
Model	UM981
Category	Control Unit
Language	English