UB4B0 User Manua
l
6
2.3
Board Overview
RF
Section
Nebulas
External CPU
I/O
Antenna
External
Clock
Fig 2-1
structure diagram
1.
RF part
The receiver gets filtered and enhanced GNSS signal from the antenna via a coaxial
cable. The RF part convert the RF input signals into the IF signal, and convert IF analog
signal into digital signals required for Nebulas die (UC4C0).
2.
Nebulas SoC
（
UC4C0
）
Nebulas-II (UC4C0) is Unicore’s new generation high precision GNSS SoC with
55nm low power design, supports up to 12 digital intermediate frequency or 8 analog
intermediate frequency signals, which can track 12 navigation signals with 432
channels.
3.
MEMS*
This is an optional function. If selecting GNSS+INS
，
UB4B0 is integrated on-board
