UNICORECOMM UM220-INS NF User manual

WWW.UNICORECOMM.COM
User Manual
UM220-INS NF
GNSS Integrated
Navigation Positioning
Module
Copyright© 2009-2019, Unicore Communications, Inc.
Data subject to change without notice.

I
Revision History
Version
Revision History
Date
Ver. 1.0
Initial Edition
Jun. 2018
Ver. 1.0.2
Alpha release version
OCT.2018
Ver. 1.0.4
Beta release version
May.2019
Ver. 1.0.6
Beta release version: Align with the Chinese
version
Aug. 2019
R1.1
Merge the contents of the guide manual in
chapter 4.6
Chapter 6.2: add the shelf life
Sep. 2019
Disclaimer
Information in this document is subject to change without notice and does not
represent a commitment on the part of Unicore Communications, Inc. No part of this
manual may be reproduced or transmitted in any form or by any means, electronic or
mechanical, including photocopying and recording, for any purpose without the express
written permission of a duly authorized representative of Unicore Communications, Inc.
The information contained within this manual is believed to be true and correct at the
time of publication. © Copyright 2009-2019 Unicore Communications, Inc. All rights
reserved.

UM220 User Manual
II
Foreword
This document offers you information in the features of the hardware, the installation,
specification and use of Unicore UM220-INS NF product.
Readers it applies to
This document is applied to the technicians who know GNSS Receiver to some extent
but not to the general readers.
Structure of the file
This document includes the followings:
Introduction: Briefly explaining the functions, performances and installing of the product
Installation: Contains the list of the product package and the details of product
installation
Technical Specification: Offering technical specifications of the product
Hardware Specification: Offering all the information of hardware interface of the product
Mechanical Features: Offering UM220-INS NF dimensions, layout, and top views.

III
Contents
1INTRODUCTION ........................................... 1
1.1 OVERVIEW........................................................................................................................................ 1
1.2 KEY FEATURES................................................................................................................................... 2
1.3 INTERFACES ...................................................................................................................................... 3
2TESTING ................................................ 4
2.1 ESD HANDLING PRECAUTIONS ............................................................................................................. 4
2.2 HARDWARE INSTALLATION................................................................................................................... 5
3TECHNICAL SPECIFICATIONS................................ 6
3.1 ELECTRICAL SPECIFICATIONS................................................................................................................. 6
3.2 OPERATION CONDITION ...................................................................................................................... 6
3.3 DIMENSIONS..................................................................................................................................... 7
3.4 PIN DEFINITION (TOP VIEW）............................................................................................................. 8
3.5 PCB PACKAGING ............................................................................................................................... 9
4HARDWARE DESIGN ....................................... 10
4.1 DESIGN IN CONSIDERATIONS .............................................................................................................. 10
4.2 ANTENNA....................................................................................................................................... 11
4.3 SERIAL PORT ................................................................................................................................... 11
4.4 ODOMETER INSTALLATION................................................................................................................. 12
4.5 CALIBRATION .................................................................................................................................. 12
4.6 INSTALLATION ................................................................................................................................. 13
4.6.1 Installation Instructions .......................................................................................................... 13
4.6.2 Installation Angle Definition ................................................................................................... 14
4.6.3 Free Installation and Self-Calibration ..................................................................................... 14
4.6.4 Fixed Installation and Self-Calibration .................................................................................... 16
4.7 MEMS.......................................................................................................................................... 17
5DISASSEMBLY ........................................... 18
6PACKAGE ............................................... 18
6.1 PRODUCT LABEL DESCRIPTION............................................................................................................ 18
6.2 PACKAGE DESCRIPTION ..................................................................................................................... 18
7CLEAN ................................................. 19
8REFLOW SOLDERING ...................................... 19

1
1Introduction
1.1 Overview
UM220-INS NF is a BDS/GPS+MEMS dual-system module designed for In-dash automotive navigation
and high-end navigation, based on Unicore low power GNSS SoC- Firebird(UC6226). With its built-in
6 axis MEMS, and the support of BDS+GPS, UM220-INS NF can output GNSS+MEMS inertial
positioning result, most suitable for applications requiring high accuracy, high reliability, and high
continuity positioning.
Figure 1-1 UM220-INS NF Module
Variant
PN
Specification
System*
Interface
Data
Update
Rate*
Industry Grade
Positioning chip for
automotive
applications
Full module for
automotive
applications
GPS
BDS*
GLONASS*
GALILEO
QZSS
UART1
UART2
UM220-INS NL*
2310408000012
●
●
●
●
●
●
●
●
1Hz
UM220-INS NF
2310408000014
●
●
●
●
●
1HZ
The BDS system cannot run in parallel with the GLONASS system
UM220-INS NL products will be released in the future
The default data update rate of the module is 1HZ, which can be configured into 5HZ and 10HZ
The internal positioning chip of UM220-INS NF conforms to AEC-Q100 standard, and the full
module of UM220-INS NQ conforms to AEC-Q104 standard
UM220-INS NF will support QZSS in the future

UM220 User Manual
2
1.2 Key Features
Power
Voltage
+2.8V~3.6V VDC
Power Consumption1
105mW
RF Input
Frequency
1559～1577MHz
Input VSWR
≤1.5
Input impedance
50Ω
Antenna gain
15～30dB
Physical Characters
Dimension
16.0*12.2*2.6mm
Environment
Operating Temperature
-40℃~ +85℃
Storage Temperature
-45℃~ +90℃
Input/ Output Data Interface
UART
UART*2, LVTTL.
Acceptable Baud Rate: 4800~115200bps, 9600bps by
default
GNSS Performance
Frequency
BDS B1: 1561.098MHz
GPS L1 : 1575.42MHz
TTFF
(Time to First Fix)
Cold Start: 30s
Hot Start: 1s
Reacquisition: 1s
Positioning Accuracy(RMS)
2.0m CEP
Velocity Accuracy (RMS)
0.1m/s
Update Rate
1Hz/5Hz/10Hz
Sensitivity
GN
BDS
GPS
Tracking
-161dBm
-159dBm
-161dBm
Acquisition
-147dBm
-144dBm
-147dBm
Hot
-154dBm
-149dBm
-154dBm
Reacquisition
-156dBm
-156dBm
-156dBm
Data Output2
NMEA 0183, Unicore Protocol
1PPS(RMS)3
20ns
1
Continuous positioning, typical values
2
User configurable. See Unicore UM220-INS NF Protocol Specification Ver.1.0.3 or updated version for more details.
3
Statistical values within one hour, not recommended for timing application

3
1.3 Interfaces
RF_IN LNA
UFirebird
MEMS
（Gyro，Acc）
UART
RST
SRAM
GNSS RF
CPU
ROM
GNSS Baseband
Interface
UM220-INS NF Vbackup
RTC
VCC
1PPS
TCXO
FWD
WHEEL TICK
SAW
Figure 1-2 Structure
UART
UM220-INS NF module support 2 configurable UART ports, the signal input/output level is LVTTL. The
default baud rate is 9600bps, and is adjustable, can be configured up to 115200bps.
COM1 is the primary serial port, which supports data transfer and firmware upgrade function.
During design in, please ensure that COM1 is connected to a PC or an external processor for
firmware upgrades.
For routine starts of the module, please keep COM1 ‘s input pin at a constant high or constant low
level 1 second after the reset signal goes high.
COM2 only supports data transmission, and can’t be used for firmware upgrade purpose, reserved for
future use.
Odometer (FWD/WHEELTICK)
The UM220-INS NF module has an odometer input interface that includes FWD and WHEELTICK, which
are useful for improving the module’s location accuracy.
MEMS
UM220-INS NF integrated sis axis MEMS on board, 3 axis gyro and 3 axis accelerator. MEMS provide
vehicle dynamic changing info and UM220-INS NF combine them with GNSS calculation and output
the inertial positioning result directly. This combination ensures the positioning experience for users,
much more continuous than the pure GNSS module, especially under GNSS signal loss scenario such
as tunnels and underground parking.

UM220 User Manual
4
1PPS
UM220-INS NF outputs 1 PPS with adjustable pulse width and polarity.
1PPS is not for timing application.
nReset
Low voltage valid (low voltage last for less than 2 millisecond is required).
2Testing
2.1 ESD Handling Precautions
UM220-INS NF Modules are Electrostatic Sensitive Devices (ESD) and require special precautions
when handling.
Follow the steps in section 2.2 in the correct order
Electrostatic discharge (ESD) may cause damage to the device. All operations mentioned in this
chapter shall be carried out in an antistatic workbench, using both wearing an antistatic wrist
strap and a conductive foam pad. If antistatic workbench is not available, wear an antistatic
wrist strap and connect the other end to a metal frame to play a role in anti-static
Hold the edge of the module, not in direct contact with the components
Please check carefully whether the module has obviously loose or damaged components. If you
have questions, please contact us or your local dealer.
Figure 2-1 shows the typical installation of UM220-INS NF EVK suites.
Antenna
PC
Figure 2-1 Typical Installation of UM220-INS NF EVK
Please check the contents of the package carefully after receiving the package of UM220-INS NF.
UM220-INS NF EVK suite (with AC Adapter)
UM220-INS NF User manual

5
uSTAR application package
Qualified antenna, support GPS L1 and BDS B1
Antenna connection cable
Direct serial cable and USB
PC or Laptop with serial ports (Windows 2000/XP/Win7）
Please keep the box and anti-static plastic bags for storage and handling
2.2 Hardware Installation
After the above preparation is complete, follow the steps below to install:
Step 1: Make sure to make full anti-static measures, such as anti-static wrist strap, grounding the
workbench;
Step 2: Open the UM220-INS NF evaluation kit;
Step 3: Select the GNSS antenna with appropriate gain, fix it in the non-block area, using the
appropriate cable to connect the antenna with UM220 EVK;
Step 4: Connect the PC to the EVK serial port through direct serial cable;
Step 5: Power supply for UM220-INS initialization;
Step 6: Open the uSTAR software on the PC;
Step 7: Controlled the receiver through uSTAR to display constellations view, log messages, and
receiver status.

UM220 User Manual
6
3Technical Specifications
3.1 Electrical Specifications
Absolute Maximum Ratings
Item
Pin
Min
Max
Unit
Description
Power Supply (VCC)
Vcc
-0.5
3.6
V
Main power
Backup Voltage
V_BCKP
-0.5
3.6
V
Backup
power
supply for
RTC
Digital IO (RXD1，RXD2) 4
Vin
-0.5
3.6
VV
VCC Ripple (Rated Max.)
Vrpp
0
50
mVpp
RF_IN
RF_IN
-
+3
dBm
Max input
power of
antenna
Storage Temperature
Tstg
-45
90
°C
SMT Reflow Temperature
TSLDR
-
+260
°C
Maximum ESD stress
VESD(HBM)
2000
V
All
pins,HBM
3.2 Operation Condition
Item
Pin
Min.
Typical
Value
Max.
Unit
Condition
Power Supply (VCC)
Vcc
2.8
3.3
3.6
V
Ripple Voltage
Vp-p
50
mV
Peak current
Iccp
54
mA
Vcc = 3.0 V
Tracking average
current
IACQ
27
31
34
mA
Vcc = 3.0V
LOW Level Input
Voltage
VIL
-0.3
0.2*Vcc
V
High Level Input
Voltage
VIH
0.7*Vcc
Vcc+0.3
V
LOW Level Output
Voltage
VOL
0
0.4
V
Iout = -2 mA
High Level Output
Voltage
VOH
Vcc–0.4
Vcc
V
Iout = 2 mA
Antenna Gain5
GANT
15
20
30
dB
Noise Figure
NF
1.5
dB
Operating
Temperature
TOPR
-40
85
°C
4
Including nRESET，TIMEPULSE，WHEELTICK，TXD2，RXD2，FWD，TXD1，RXD1
5
The antenna gain range refers to the gain range of the preamplifier before RF_IN of the module.