unicore UM982 - Block Diagram; RF Part Description; NebulasIV SoC (UC9810); External Interfaces List

UC-00-M31 EN R1.2 Introduction 5
1.3 Block Diagram
UM982
SAW
Filter
CLOCK
SAW
Filter
TCXO
RESET_N
UART3
UART2
UART1
RTK_STAT
LNA
LNA
ANT2_IN
ANT1_IN
PVT_STAT
ERR_STAT
Nebulas IV
GNSS
RF
GNSS
BB
Interface
PMU
I
2
C
SPIS
PPS
EVENT
Figure 1-2 UM982 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, multiple 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/heading independently.
 External Interfaces
The external interfaces of UM982 include UART, I
2
C
*
, SPI
*
, CAN
*
, PPS, EVENT, RTK_STAT,
PVT_STAT, ERR_STAT, RESET_N, etc.
*
I
2
C, SPI, CAN: reserved interfaces, not supported currently