4
Introduction
UC-00-M47 EN R1.0
1.3
Interfaces
UM960L
SAW
Filter
VCTCXO
RESET_N
EVENT
PPS
I
2
C
UART1/2/3
LNA
ANT1_IN
Nebulas IV
CLOCK
GNSS
RF
GNSS
BB
Interface
PMU
Figure 1-2 UM960L 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 signal, and converts IF
analog signal into digital signals required for NebulasIV
TM
chip.
NebulasIV
TM
SoC
NebulasIV
TM
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 2 GHz dual CPU, a high speed floating point processor and a
co-processor, which can fulfill the high precision baseband processing and positioning
independently.
1PPS
UM960L outputs 1 PPS with adjustable pulse width and polarity.
Event
UM960L provides 1 Event Mark Input with adjustable
frequency
and polarity.
Reset (RESET_N)
Active LOW, and the active time should be no less than 5 ms.
