UC-00-M32 EN R1.0
Introduction
5
1.3
Block Diagram
RF in
SAW
Filter
SPIS
RESET_N
PVT
、
RTK
、
ERR
Nebulas IV
GNSS
RF
GNSS
BB
LNA
CLOCK
TCXO
Interface
PMU
I2C
UART1/2/3
UM980
PPS
EVENT
Interface
Figure 1-2 UM980 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
22 nm low power design, supporting all constellations all frequencies and 1408 super
channels. It integrates a dual-core CPU, a high speed floating point processor and an
RTK co-processor, which can fulfill the high precision baseband processing and RTK
positioning independently.
1PPS
UM980 outputs 1 PPS with adjustable pulse width and polarity.
Event
UM980 provides the Event Mark Input with adjustable frequency and polarity.
