Telit Wireless Solutions SC872-A Specification sheet

SC872-A
Product User Guide
1VV0301202 Rev. 6
2019-12-05

SC872-A Product User Guide Notices
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SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE
NOTICES
While reasonable efforts have been made to ensure the accuracy of this document, Telit
assumes no liability resulting from any inaccuracies or omissions in this document, or from use
of the information obtained herein. The information in this document has been carefully checked
and is believed to be reliable, however no responsibility is assumed for inaccuracies or
omissions. Telit reserves the right to make changes to any products described herein and
reserves the right to revise this document and to make changes from time to time in content
hereof with no obligation to notify any person of revisions or changes. Telit does not assume
any liability arising out of the application or use of any product, software, or circuit described
herein; neither does it convey license under its patent rights or the rights of others.
It is possible that this publication may contain references to, or information about Telit products
(machines and programs), programming, or services that are not announced in your country.
Such references or information must not be construed to mean that Telit intends to announce
such Telit products, programming, or services in your country.
COPYRIGHTS
This manual and the Telit products described herein may be, include or describe copyrighted
Telit material, such as computer programs stored in semiconductor memories or other media.
Laws in Italy and other countries preserve for Telit and its licensors certain exclusive rights for
copyrighted material, including the exclusive right to copy, reproduce in any form, distribute and
make derivative works of the copyrighted material. Accordingly, any copyrighted material of Telit
and its licensors contained herein or in the Telit products described in this manual may not be
copied, reproduced, distributed, merged or modified in any manner without the express written
permission of Telit. Furthermore, the purchase of Telit products shall not be deemed to grant
either directly or by implication, estoppel, or otherwise, any license under the copyrights, patents
or patent applications of Telit, as arises by operation of law in the sale of a product.
COMPUTER SOFTWARE COPYRIGHTS
The Telit and Third Party supplied Software (SW) products described in this manual may
include copyrighted Telit and other Third Party supplied computer programs stored in
semiconductor memories or other media. Laws in Italy and other countries preserve for Telit and
other Third Party supplied SW certain exclusive rights for copyrighted computer programs,
including the exclusive right to copy or reproduce in any form the copyrighted computer
program. Accordingly, any copyrighted Telit or other Third Party supplied SW computer
programs contained in the Telit products described in this manual may not be copied (reverse
engineered) or reproduced in any manner without the express written permission of Telit or the
third-party SW supplier. Furthermore, the purchase of Telit products shall not be deemed to
grant either directly or by implication, estoppel, or otherwise, any license under the copyrights,
patents or patent applications of Telit or other Third Party supplied SW, except for the normal
non-exclusive, royalty-free license to use that arises by operation of law in the sale of a product.

SC872-A Product User Guide Notices
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USAGE AND DISCLOSURE RESTRICTIONS
I. License Agreements
The software described in this document is the property of Telit and its licensors. It is furnished
by express license agreement only and may be used only in accordance with the terms of such
an agreement.
II. Copyrighted Materials
Software and documentation are copyrighted materials. Making unauthorized copies is
prohibited by law. No part of the software or documentation may be reproduced, transmitted,
transcribed, stored in a retrieval system, or translated into any language or computer language,
in any form or by any means, without prior written permission of Telit
III. High Risk Materials
Components, units, or third-party products used in the product described herein are NOT fault-
tolerant and are NOT designed, manufactured, or intended for use as on-line control equipment
in the following hazardous environments requiring fail-safe controls: the operation of Nuclear
Facilities, Aircraft Navigation or Aircraft Communication Systems, Air Traffic Control, Life
Support, or Weapons Systems (High Risk Activities"). Telit and its supplier(s) specifically
disclaim any expressed or implied warranty of fitness for such high-risk activities.
IV. Trademarks
TELIT and the Stylized T Logo are registered in the Trademark Office. All other product or
service names are the property of their respective owners.
V. Third Party Rights
The software may include Third Party Right software. In this case you agree to comply with all
terms and conditions imposed on you in respect of such separate software. In addition to Third
Party Terms, the disclaimer of warranty and limitation of liability provisions in this License shall
apply to the Third-Party Right software.
TELIT HEREBY DISCLAIMS ANY AND ALL WARRANTIES EXPRESS OR IMPLIED FROM
ANY THIRD PARTIES REGARDING ANY SEPARATE FILES, ANY THIRD-PARTY
MATERIALS INCLUDED IN THE SOFTWARE, ANY THIRD-PARTY MATERIALS FROM
WHICH THE SOFTWARE IS DERIVED (COLLECTIVELY “OTHER CODE”), AND THE USE OF
ANY OR ALL THE OTHER CODE IN CONNECTION WITH THE SOFTWARE, INCLUDING
(WITHOUT LIMITATION) ANY WARRANTIES OF SATISFACTORY QUALITY OR FITNESS
FOR A PARTICULAR PURPOSE.
NO THIRD PARTY LICENSORS OF OTHER CODE SHALL HAVE ANY LIABILITY FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
WHETHER MADE UNDER CONTRACT, TORT OR OTHER LEGAL THEORY, ARISING IN
ANY WAY OUT OF THE USE OR DISTRIBUTION OF THE OTHER CODE OR THE
EXERCISE OF ANY RIGHTS GRANTED UNDER EITHER OR BOTH THIS LICENSE AND
THE LEGAL TERMS APPLICABLE TO ANY SEPARATE FILES, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES.

SC872-A Product User Guide Product Applicability Table
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PRODUCT
SC872-A
Table 0-1 Product Applicability Table
PRODUCT APPLICABILITY TABLE

SC872-A Product User Guide Contents
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CONTENTS
NOTICES....................................................................................................................................2
COPYRIGHTS ............................................................................................................................2
COMPUTER SOFTWARE COPYRIGHTS..................................................................................2
USAGE AND DISCLOSURE RESTRICTIONS...........................................................................3
PRODUCT APPLICABILITY TABLE..........................................................................................4
CONTENTS ................................................................................................................................5
TABLES .....................................................................................................................................7
FIGURES....................................................................................................................................8
1INTRODUCTION.............................................................................................................9
Purpose ......................................................................................................................9
Contact and Support Information.................................................................................9
Text Conventions ........................................................................................................9
Related Publications and Downloads ........................................................................10
Related Documents and downloads........................................................................10
Related Documents Requiring a Non-Disclosure Agreement ..................................10
2PRODUCT DESCRIPTION ...........................................................................................11
Product Overview......................................................................................................11
Block Diagram...........................................................................................................12
SC872-A Block Diagram .........................................................................................12
Product Pictures........................................................................................................13
3EVALUATION KIT ........................................................................................................14
4PRODUCT FEATURES ................................................................................................16
Multi-Constellation Navigation...................................................................................16
Quasi-Zenith Satellite System (QZSS) ......................................................................16
Satellite-Based Augmentation System (SBAS)..........................................................16
SBAS Corrections...................................................................................................16
Assisted GPS (AGPS)...............................................................................................16
Locally-generated AGPS - Embedded Assist System (EASY) ................................16
Server-generated AGPS - Extended Prediction Orbit (EPO) ...................................17
Host EPO................................................................................................................17
10 Hz Navigation.......................................................................................................17
Elevation Mask Angle................................................................................................17
Static Navigation .......................................................................................................17
Jamming Rejection – Active Interference Cancellation (AIC).....................................17
Internal LNA..............................................................................................................18

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Serial I/O Port ...........................................................................................................18
Power Management Modes ......................................................................................19
Full Power Continuous Mode ..................................................................................19
Backup Mode (Perpetual) .......................................................................................20
Standby Modes.......................................................................................................20
GLP Mode ..............................................................................................................20
Periodic Modes .......................................................................................................21
AlwaysLocate™ Modes ..........................................................................................22
5DATA RETENTION.......................................................................................................23
6PRODUCT PERFORMANCE........................................................................................24
Performance – SC87x-A ...........................................................................................24
Horizontal Position Accuracy ..................................................................................24
Time to First Fix ......................................................................................................24
Sensitivity ...............................................................................................................25
Jamming Mitigation Performance example................................................................26
7MESSAGE INTERFACE ...............................................................................................27
NMEA Output Messages...........................................................................................27
Standard Messages................................................................................................27
Proprietary Output Messages .................................................................................28
NMEA Input Commands............................................................................................29
NMEA Commands List............................................................................................29
8FLASH UPGRADABILITY ............................................................................................30
9ELECTRICAL INTERFACE ..........................................................................................31
Module Pinout – SC872-A.........................................................................................31
DC Power Supply......................................................................................................32
VCC........................................................................................................................32
Battery ....................................................................................................................32
DC Power Requirements ........................................................................................32
DC Power Consumption .........................................................................................33
Digital Interface Signals ............................................................................................34
UART TX Usage .....................................................................................................34
UART Port Operation..............................................................................................34
TX/RX Signal Levels...............................................................................................34
Built-in Antenna.........................................................................................................35
RF Signal Requirements ...........................................................................................36
GNSS Antenna Polarization....................................................................................37
RF Interference.......................................................................................................37
Shielding.................................................................................................................37
10 REFERENCE DESIGN..................................................................................................38

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11 MECHANICAL DRAWINGS..........................................................................................39
Ground Plane............................................................................................................39
SC872-A Mechanical Drawings.................................................................................40
12 PACKAGING & HANDLING .........................................................................................41
Product Marking and Serialization.............................................................................41
Product Packaging....................................................................................................42
Moisture Sensitivity ...................................................................................................43
Disposal ....................................................................................................................45
Safety........................................................................................................................45
13 ENVIRONMENTAL REQUIREMENTS..........................................................................46
Operating Environmental Limits ................................................................................46
Storage Environmental Limits ...................................................................................46
14 COMPLIANCES............................................................................................................47
15 SAFETY RECOMMENDATIONS ..................................................................................48
16 GLOSSARY AND ACRONYMS....................................................................................49
17 DOCUMENT HISTORY.................................................................................................52
TABLES
Table 0-1 Product Applicability Table ........................................................................................ 4
Table 4-1 Power Management - Command summary ...............................................................19
Table 5-1 Data Retention ..........................................................................................................23
Table 6-1 Horizontal Position Accuracy.....................................................................................24
Table 6-2 Time to First Fix ........................................................................................................24
Table 6-3 Sensitivity..................................................................................................................25
Table 7-1 Default NMEA output messages ...............................................................................27
Table 7-2 Available Messages ..................................................................................................27
Table 7-3 NMEA Talker IDs ......................................................................................................28
Table 7-4 Proprietary Output Messages....................................................................................28
Table 7-5 NMEA Input Commands............................................................................................29
Table 9-1 DC Supply Voltage....................................................................................................32
Table 9-2 Power Consumption..................................................................................................33
Table 9-3 Logic Levels – TX and RX.........................................................................................34
Table 12-1 Product Label Description .......................................................................................41
Table 13-1 Operating Environmental Limits ..............................................................................46
Table 13-2 Storage Environmental Limits..................................................................................46

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FIGURES
Figure 2-1 SC872-ABlock Diagram ...........................................................................................12
Figure 2-2 SC872-A Pictures ...................................................................................................13
Figure 3-1 Evaluation Kit contents............................................................................................14
Figure 3-2 SC872-A Evaluation Unit ........................................................................................15
Figure 4-1Jamming Rejection ...................................................................................................18
Figure 4-2 GNSS Low Power (GLP) mode diagram ..................................................................20
Figure 4-3 Periodic Modes diagram ..........................................................................................21
Figure 4-4 Periodic Mode example 1.........................................................................................21
Figure 4-5 Periodic Mode example 2.........................................................................................21
Figure 6-1 Jamming with AIC Disabled .....................................................................................26
Figure 6-2 Jamming with AIC Enabled ......................................................................................26
Figure 9-1 SC872-A Pin-out......................................................................................................31
Figure 10-1 SC872-A Reference Design...................................................................................38
Figure 11-1 SC872-A Ground Plane ........................................................................................39
Figure 11-2 SC872-A Mechanical Drawing ..............................................................................40
Figure 12-1 Product Label.........................................................................................................41
Figure 12-2 Tray Packaging......................................................................................................42
Figure 12-3 Moisture Sensitive Devices Label...........................................................................44

SC872-A Product User Guide Introduction
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1 INTRODUCTION
Purpose
The purpose of this document is to provide information regarding the function, features, and
usage of the Telit products listed in Table 0-1 Product Applicability Table
Contact and Support Information
For general contact, technical support services, technical questions, and to report
documentation errors contact Telit Technical Support at:
•[e-mail]
•[e-mail]
•TS-[email protected]
For detailed information about where you can buy the Telit modules or for recommendations on
accessories and components visit:
•http://www.telit.com
Our aim is to make this guide as helpful as possible. Keep us informed of your comments and
suggestions for improvements.
Telit appreciates feedback from the users of our information.
Text Conventions
Dates are in ISO 8601 format, i.e. YYYY-MM-DD.
Symbol
Description
Danger – This information MUST be followed or catastrophic equipment failure
and/or bodily injury may occur.
Caution or Warning – This is an important point about integrating the product into a
system. If this information is disregarded, the product or system may malfunction or
fail.
Tip – This is advice or suggestion that may be useful when integrating the product.

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Related Publications and Downloads
Please see http://www.telit.com/gnss/ for current documentation and downloads
Related Documents and downloads
•Datasheets
•Product User Guides
•EVK User Guides
•Software User Guides
•Application Notes
•TelitView installation and documentation
Related Documents Requiring a Non-Disclosure Agreement
•Authorized Software User Guides
•Product firmware