UNICORECOMM UT4B0 Bedienungsanleitung

WWW.UNICORECOMM.COM

INSTALLATION AND OPERATION

USER MANUAL

GPS/BDS/GLONASS/Galileo

Data subject to change without notice.

Communications, Inc.

T4B0

High Precision Timing Module

Multi-constellation, Multi-frequency

Revision History

Version

Revision History

Date

V1.0

Initial released revision

Jul. 2017

Update with a new hardware version

Jan. 2020

Disclaimer

This manual provides information about the products of Unicore Communications,

Inc. This document does not transfer the patent, trademark, copyright of the

company or any third party, or any right or permission under it by implication,

estoppel or otherwise.

Except as stated in the sales terms and conditions of the products, the company

shall not assume any other responsibilities. Furthermore, Unicore Communications,

Inc. makes no warranty, express or implied, for the sale and/or use of its products,

including the suitability of a particular purpose and marketability of products, or

liability for infringement of any patent, copyright or other intellectual property rights.

If the connection or operation is not in accordance with the manual, the company is

not liable. Unicore Communications, Inc. may make changes to product

specifications and product descriptions at any time without prior notice.

The company's products may contain certain design defects or errors, which will be

included in the corrigendum once found, and may therefore result in differences

between the products’ actual specifications and the published ones. Updated

corrigendum is available upon request.

Before placing an order, please contact our company or local distributors for the

latest specifications.

* Unicore Communications, Unicorecomm, NebulasII and its logo have been applied

for trademark registration by Unicore Communications, Inc.

Other names and brands are the property of their respective owners.

Foreword

This document describes the information of the hardware, installation, specification

and the use of of Unicore UT4B0 product.

Audience

This manual is applied to the technical personnel, who possess the expertise of

GNSS receivers.

 
III 
 
Contents 
 
Contents................................................................................ III 
1Product Introduction ......................................................... 1 
1.1 Key Features ................................................................................................................1 
1.2 Technical Specifications.............................................................................................2 
1.3 Block Diagram..............................................................................................................3 
2Hardware .......................................................................... 4 
2.1 Pin Definition................................................................................................................5 
2.2 Electrical Characteristics ............................................................................................5 
2.3 Operating Conditions...................................................................................................6 
2.4 Physical Characteristics .............................................................................................6 
3Hardware Design ............................................................... 6 
3.1 Design in Considerations ............................................................................................6 
3.2 Module Reset Signal....................................................................................................7 
3.3 Antenna ........................................................................................................................7 
4Installation and Configuration............................................ 9 
4.1 ESD Handling Precautions ..........................................................................................9 
4.2 Installation Guide.........................................................................................................9 
4.3 Power-on................................................................................................................... 12 
4.4 Setting and Output.................................................................................................... 12 
4.4.1 Operating Steps...................................................................................13 
5Common Configuration Commands ................................. 15 
5.1 High Precision Timing Setting ................................................................................. 17 
6Firmware Upgrade ........................................................... 19 

UC-00-M24 EN R2

Product Introduction

1Product Introduction

UT4B0 is the world's first multi-constellation, multi-frequency and high-performance

RTK timing module independently developed by Unicore. It is designed with standard

8Pin and provides high-precision satellite synchronous clock for the most stringent

timing applications in the world.

Equipped with the new generation multi-constellation, multi-frequency high precision

NebulasII SoC from Unicore, UT4B0 supports 432 channels. With the powerful

processing capability and the built-in JamShield multi-frequency anti-jamming

technology, it simultaneously tracks the multi-constellation, multi-frequency satellite

signals such as BDS, GPS, GLONASS, Galileo, and performs multi-frequency anti-

jamming processing, significantly improving the timing stability and reliability.

Figure 1- 1 UT4B0 High-Precision Timing Module

1.1 Key Features

Multi-constellation, multi-frequency high-precision timing module, provides

the world's leading timing accuracy

20Hz data output rate

JamShield adaptive anti-jamming and U-AutoAlign multi-path suppression

technology, applicable to complex and harsh environments with signal

interference

UT4B0 User Manual

UC-00-M24 EN R2

Product Introduction

1.2 Technical Specifications

Performance Specifications

Channels

432 channels, based on

NebulasII

Cold Start

＜45s

Frequencies

BDS B1/B2/B3

GPS L1/L2/L5

GLONASS

L1/L2

Galileo E1/E5a/E5b

Initialization Time

＜10s (typical)

Single Point

Positioning (RMS)

Horizontal: 1.5m

Vertical: 3.0m

Initialization

Reliability

＞99.9%

TTFF (Time To First

Fix)

＜50s

Dgps（Rms）

Horizontal: 0.4m

Reacquisition

<1s

Vertical: 0.8m

Differential Data

RTCM 2.X/3.X CMR

Rtk（Rms）

Horizontal: 1cm+1ppm

Data Format

NMEA-0183, Unicore

Vertical: 1.5cm+1ppm

Data Update Rate

20Hz

Dimensions

67.2 mm*31.8mm

Time Accuracy (1σ)

2ns

Functional Interfaces

UART (LV-TTL)

2x1PPS (LV-TTL)1

Optional

UC-00-M24 EN R2

Product Introduction

1.3 Block Diagram

Figure 1- 2 UT4B0 Structure Diagram

1. RF

The receiver obtains the filtered and enhanced GNSS signal from the antenna through

the coaxial cable. The RF section converts the RF input signal to IF signal and coverts

the IF analog signal to the digital signal required by NebulasII chip (UC4C0).

2. NebulasII Chip (UC4C0)

As the new-generation multi-constellation, multi-core high-precision SoC developed

independently by Unicore, NebulasII chip, based on the mature core technology of Nebulas

baseband chips and 55nm low power design, supports 432 hyperchannels. It has built-in

broadband ADC and anti-jamming unit, as well as two integrated 600MHz ARM processors

and a special high-speed floating-point processor to provide more powerful satellite

navigation signal processing capability.

3. Pulse Per Second (1PPS)

UT4B0 provides one IPPS signal with adjustable output pulse width and polarity.

4. Reset (RST)

Low active, with retention time no less than 5ms.

RF input

front

end

Interface

UT4B0 User Manual

UC-00-M24 EN R2

Hardware

2Hardware

Figure 2- 1 Mechanical Drawing

UC-00-M24 EN R2

Hardware

Pin definition:

UT4B0 data / power interface is designed with 8 Pin (2 × 4) pins, with a standard

spacing of 2mm.

Pin Layout

2.1 Pin Definition

I/O

Description

ANT_PWR

Antenna DC power

VCC

3.3V DC power

TXD

Transmit, LVCMOS logic level

RST

Hardware reset, active low

RXD

Receive, LVCMOS logic level

1PPS

1PPS, LVCMOS logic level

Reserved/1PPS2

GND

Ground

2.2 Electrical Characteristics

Maximum Absolute Rating

Parameter

Symbol

Min

Max

Units

Supply voltage (VCC)

Vcc

-0.3

3.6

Input pin voltage

Vin

-0.3

VCC+0.2

LNA power supply (antenna)

ANT_PWR

-0.3

VCC maximum ripple

Vrpp

Input pin voltage (all other

pins except those mentioned

above)

Vin

-0.3

3.6

Maximum ESD Stress

VES (HBM)

± 2000

UT4B0 User Manual

UC-00-M24 EN R2

Hardware Design

2.3 Operating Conditions

Parameter

Symbol

Min

Typical

value

Max

Units

Conditions

Supply voltage (VCC)

Vcc

3.0

3.3

3.6

Peak Current

Iccp

8.8

Vcc=3.3V

Low Level Input

Voltage

Vin_low_1

-0.3

VCC*0.3

High Level Input

Voltage

Vin_high_1

VCC*0.7

VCC+0.3

Low Level Output

Voltage

Vout_low

0.45

Iout=4mA

High Level Output

Voltage

Vout_high

VCC-0.45

VCC

Iout=4mA

Optimum input gain

Gant

Noise Figure

Nftot

2.5

3.5

LNA antenna power

supply

ANT_PWR

3.0

5.5

<100mA

Operating

temperature

Topr

-40

°C

Power consumption

1.5

1.8

2.0

2.4 Physical Characteristics

Physical Characteristics

Dimensions

67.2mm× 31.8mm

Operating Temperature

-40℃～+85℃

Storage Temperature

-55℃～+95℃

Humidity

95% non-condensation

Vibration

GJB150.16-2009，MIL-STD-810

Impact

GJB150.18-2009，MIL-STD-810

3Hardware Design

3.1 Design in Considerations

To ensure UT4B0 works normally, the following signals shall be connected correctly:

Provide reliable power supply with DC pins

Attention to 50 ohm impedance matching of circuit for ANT_IN

ANT_PWR pin is connected to +3.3~5.0V feed, and then +3.3~5.0V feed is

provided to the antenna via ANT_IN Pin

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