UNICORECOMM UM220-IV M0 User manual

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INSTALLATION AND OPERATION
USER MANUAL
Data subject to change without notice.
Copyright© 2009-2020, Unicore Communications, Inc.
GNSS Positioning Module
UM220-IV M0

Revision History
Version
Revision
Date
Ver.1.0.0
Primary version
Jun.2018
Ver.1.0.1
Alpha release, Revised Pin definition
Oct.2018
Ver.1.0.2
Revised module size
Dec.2018
Ver.1.0.4
Aug. 2019
R1.1
Chapter 6.2: add shelf life
Sep. 2019
R1.2
Chapter 6.2: revise the MSL
instructions
Add CE logo
Jan. 2020
Disclaimer
Information in this document is subject to change without notices and does not
represent a commitment on the part of Unicore Communication, 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 2009-2020 Unicore Communications, Inc. All rights reserved.
version 1.0.4
Beta release , a lign with Chinese

UM220-IV M0 User Manual
Forward
This document offers you information in the features of the hardware, the installation,
specification and use of Unicore UM220-IV M0 product.
Reader 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 Document
This document includes the following:
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
Module disassembly introduce.
Package: Provide packing instructions for UM220-IV M0 modules

I
Contents
1INTRODUCTION..................................................................... 1
1.1 OVERVIEW ...................................................................................................................1
1.2 KEY FEATURES.............................................................................................................1
1.3 INTERFACE...................................................................................................................2
2PRODUCT INSTALLATION..................................................... 3
2.1 INSTALLATION PREPARATION ........................................................................................3
2.2 HARDWARE INSTALLATION ............................................................................................4
3TECHNICAL SPECIFICATIONS............................................... 5
3.1 ELECTRICAL SPECIFICATIONS.........................................................................................5
3.2 OPERATION CONDITION.................................................................................................5
3.3 DIMENSIONS................................................................................................................5
3.4 PIN DEFINITION (TOP VIEW)..........................................................................................6
4HARDWARE DESIGN.............................................................. 7
4.1 DESIGN IN CONSIDERATIONS .........................................................................................7
4.2 AVOID POWER CONNECTION..........................................................................................8
4.3 ANTENNA ....................................................................................................................8
4.4 SERIAL PORT ...............................................................................................................9
5DISASSEMBLY .................................................................... 11
6PACKAGE............................................................................ 11
6.1 PRODUCT LABEL DESCRIPTION ................................................................................... 11
6.2 PACKAGE DESCRIPTION ............................................................................................. 11
7CLEAN................................................................................. 13
8REFLOW SOLDERING........................................................... 13

1
1Introduction
1.1 Overview
Unicore UM220-IV M0 is the dual-system GNSS module. Based on Unicore low power,
multisystem, high performance SoC-UFirebird designed. And the support of BDS
B1+GPS L1 dual-system joint positioning or single system joint positioning. UM220-IV
M0 is compact in size and used SMT pads to support fully automatic integration of
standard discharge and reflow soldering, especially suitable for low cost and low power
consumption fields. The radio equipment is in compliance with Directive 2014/53/EU.
Figure 1-1 UM220-IV M0 Module
Model
PN
Grade
System
Interface
Data updating
rate
Professional
Automotive
GPS
BDS
UART1
UART2
UM220-IV
M0
2330322000028
●
●
●
●
1Hz
1.2 Key Features
Power
Voltage
+2.8~3.6 VDC
Power Consumption
63mW
RF Input
Input VSWR
≤1.5
Input impedance
50Ω

UM220-IV M0 User Manual
2
Antenna gain
15～30dB
Physical Characters
Dimension
10.1*9.7*2.2mm
Environment
Operating Temperature
-40℃~ +85℃
Storage Temperature
-45℃~ +90℃
RoHS
Accord
Input/output Data Interface
UART
1 UART, LVTTL. Baud rate 4800～115200bps
GNSS Performance
Frequency
BDS B1: 1561.098MHz
GPS L1 : 1575.42MHz
TTFF
Cold Start: 28s
Hot Start: 1s
Reacquisition: 1s
AGNSS1: 4s
Positioning accuracy
2.0m CEP (dual-system horizontal, open sky)
3.5m CEP (dual-system vertical, open sky)
Velocity accuracy (RMS)
0.1m/s (dual-system, Open sky)
Sensitivity
GPS
Tracking
-161dBm
-161dBm
Acquisition
-146dBm
-147dBm
Hot start
-154dBm
-155dBm
Reacquisition
-157dBm
-158dBm
1PPS accuracy (RMS)
20ns
Data updating rate
1Hz
Data output
NMEA 0183, Unicore Protocol
1.3 Interface
GNSS IC
SAW
TCXO
Battery
RTC
Crystal
RESET_N
UART
PPS
UM220-IV
M0
LNA
Figure 1-2 Structure Chart
1
Assist date input
BDS

3
UART
UM220-IV M0 module supports data transfer and firmware upgrade; the signal
input/output level is LVTTL. The default baud rate is 9600bps, and is adjustable, can be
configured up to 115200bps.
1PPS
UM220-IV M0 outputs 1PPS with adjustable pulse width and polarity.
2Product Installation
2.1 Installation Preparation
UM220-IV M0 Modules are Electrostatic Sensitive Devices 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-IV M0 EVK suites.
Figure 2-1
UM220-IV M0
Antenna

UM220-IV M0 User Manual
4
Please check the contents of the package carefully after receiving the package of
UM220-IV M0:
UM220-IV M0 EVK suite（with AC Adapter）
UM220-IV M0 User manual.
uSTAR application package.
Antenna.
Antenna connection cable
Direct serial cable
PC
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-IV M0 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 the evaluation board and initialize the UM220-IV M0;
Step 6：Open the uSTAR
Step 7：Controlled the receiver through uSTAR to display constellations view, log
messages, and receiver status.

5
3Technical Specifications
3.1 Electrical Specifications
Absolute Maximum Ratings
Item
Pin
Min
Max
Unit
Condition
Power Supply (VCC)
Vcc
-0.5
3.6
V
VCC Ripple
Vrpp
50
mV
Digital IO
Vin
-0.5
Vcc +0.2
V
Storage Temperature
Tstg
-45
90
℃
MSD (MSL)
□Level 1 □Level 2 ■Level 3 □TBD
3.2 Operation Condition
Item
Pin
Min
Typical
Value
Max
Unit
Condition
Power Supply (VCC)
Vcc
2.8
3.3
3.6
V
Peak current
Iccp
37
mA
Vcc=3.0 V
Tracking average
current
IACQ
19
20
21
mA
Vcc=3.0V
Low level input voltage
Vin_low
0.7
V
High level input voltage
Vin_high
1.2
V
Low level output voltage
Vout_low
0.4
V
Iout=-8 mA
High level output
voltage
Vout_high
Vcc–0.4
V
Iout=8 mA
Antenna gain
Gant
15
30
dB
Nosie figure
Nftot
2
dB
Operation Temperature
Topr
-40
85
℃
3.3 Dimensions
Table 3-1: Dimensions
Symbol
Min(mm)
Typical Value(mm)
Max(mm)
A
9.6
10.1
10.7
B
9.55
9.7
9.85
C
2.1
2.2
2.3
D
0.55
0.65
0.95
E
1.0
1.1
1.2
F
0.7
0.8
0.9
G
0.3
0.4
0.5

UM220-IV M0 User Manual
6
H
0.9
1.0
1.1
K
0.6
0.7
0.8
M
0.7
0.8
0.9
Figure 3-1 Mechanical Layout
3.4 Pin Definition (Top View)
GND
NC
VCC_RF
NC
NC
RXD
TIMEPULSE
GND
TXD
GND
nRESET
NC
NC
RF_IN
NC
V_BCKP
VCC_IO
VCC
Top View
1
2
3
4
5
6
7
8
9
18
17
16
15
14
13
12
11
10
Figure 3-2 UM220-IV M0
No
Name
I/O
Electrical level
Description
1
GND
I
Ground
2
TXD
O
LVTTL
UART 1-TX
3
RXD
I
LVTTL
UART 1-RX
4
TIMEPULSE
O
LVTTL
1PPS
5
NC
I
LVTTL
Reserve