Telit Wireless Solutions SL871 Scheda tecnica

SL871 Family

Product User Guide

1VV0301170 Rev. 6

2018-03-13

SL871 Family Product User Guide NOTICES

1VV0301170 Rev. 6 Page 2 of 85 2018-03-13

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.

SL871 Family Product User Guide NOTICES

1VV0301170 Rev. 6 Page 3 of 85 2018-03-13

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.

SL871 Family Product User Guide NOTICES

1VV0301170 Rev. 6 Page 4 of 85 2018-03-13

PRODUCT APPLICABILITY TABLE

PRODUCT

SL871

SL871L

SL871-S

SL871L-S

Table 0-1 Product Applicability Table

SL871 Family Product User Guide CONTENTS

1VV0301170 Rev. 6 Page 5 of 85 2018-03-13

CONTENTS

NOTICES....................................................................................................................................2

COPYRIGHTS ............................................................................................................................2

COMPUTER SOFTWARE COPYRIGHTS..................................................................................2

USAGE AND DISCLOSURE RESTRICTIONS ...........................................................................3

PRODUCT APPLICABILITY TABLE..........................................................................................4

CONTENTS ................................................................................................................................5

TABLES .....................................................................................................................................9

FIGURES..................................................................................................................................10

1INTRODUCTION...........................................................................................................11

Purpose ....................................................................................................................11

Contact and Support Information...............................................................................11

Text Conventions ......................................................................................................11

Related Publications and Downloads ........................................................................12

Related Documents and downloads........................................................................12

Related Documents Requiring a Non-Disclosure Agreement ..................................12

2PRODUCT DESCRIPTION ...........................................................................................13

Product Overview......................................................................................................13

Product Naming ........................................................................................................14

Product Variants .......................................................................................................14

SL871-S and SL871L-S Features ...........................................................................14

SL871 Product Features Table ...............................................................................15

Block Diagrams.........................................................................................................16

SL871 (Gen 2) Block Diagram ................................................................................16

SL871L Block Diagram ...........................................................................................17

SL871-S Block Diagram..........................................................................................18

SL871L-S Block Diagram........................................................................................19

Module Photo............................................................................................................20

3EVALUATION KIT ........................................................................................................21

Evaluation Unit..........................................................................................................22

4PRODUCT FEATURES ................................................................................................23

Multi-Constellation Navigation (SL871 and SL871L only) .........................................23

Quasi-Zenith Satellite System (QZSS) ......................................................................23

Satellite-Based Augmentation System (SBAS)..........................................................23

SBAS Corrections...................................................................................................23

SL871 Family Product User Guide CONTENTS

1VV0301170 Rev. 6 Page 6 of 85 2018-03-13

SBAS Ranging........................................................................................................23

Differential GPS (DGPS) (SL871 and SL871L only) .................................................23

Assisted GPS (AGPS)...............................................................................................24

Locally-generated AGPS - Embedded Assist System (EASY) ................................24

Server-generated AGPS - Extended Prediction Orbit (EPO) ...................................24

Host EPO................................................................................................................24

10 Hz Navigation.......................................................................................................24

Elevation Mask Angle................................................................................................24

Static Navigation .......................................................................................................25

Jamming Rejection – Active Interference Cancellation (AIC).....................................25

Internal LNA (SL871L and SL871L-S only)..............................................................26

1PPS.........................................................................................................................26

Power Management Modes ......................................................................................27

Full Power Continuous Mode ..................................................................................27

Backup Mode (Perpetual) (SL871 and SL871L only) .............................................28

Standby Modes.......................................................................................................28

GLP Mode (SL871 and SL871L modules only) ......................................................28

Periodic Modes (SL871 and LS871L only) .............................................................29

AlwaysLocate™ Modes ..........................................................................................30

5DATA RETENTION.......................................................................................................31

6PRODUCT PERFORMANCE........................................................................................32

Performance - SL871 and SL871L ............................................................................32

Horizontal Position Accuracy - SL871 and SL871L .................................................32

Time to First Fix - SL871 and SL871L.....................................................................33

Sensitivity - SL871 (Gen 2) and SL871L .................................................................34

Performance - SL871-S and SL871L-S .....................................................................35

Position Accuracy - SL871-S and SL871L-S...........................................................35

Time to First Fix - SL871-S and SL871L-S..............................................................35

Sensitivity - SL871-S and SL871L-S .......................................................................35

Jamming Mitigation Performance example................................................................36

7SOFTWARE INTERFACE.............................................................................................37

NMEA Output Messages...........................................................................................37

Standard Messages................................................................................................37

Proprietary Output Messages .................................................................................38

NMEA Input Commands............................................................................................39

NMEA Commands List............................................................................................39

8FLASH UPGRADABILITY ............................................................................................40

9ELECTRICAL INTERFACE ..........................................................................................41

Pinout diagrams and tables.......................................................................................41

SL871 (Gen 2) and SL871L Pin-out diagram and table...........................................41

SL871-S and SL871L-S Pin-out diagram and table.................................................43

SL871 Family Product User Guide CONTENTS

1VV0301170 Rev. 6 Page 7 of 85 2018-03-13

DC Power Supply......................................................................................................45

VCC........................................................................................................................45

VBATT ....................................................................................................................45

VCC_RF .................................................................................................................45

DC Power Requirements ........................................................................................46

DC Power Consumption - SL871 (Gen 2) ...............................................................46

DC Power Consumption – SL871L .........................................................................47

DC Power Consumption - SL871-S.........................................................................48

DC Power Consumption - SL871L-S.......................................................................48

Digital Interface Signals ............................................................................................49

I/O Signal Levels.....................................................................................................49

Antenna Related Signals ........................................................................................51

Control (Input) Signals ............................................................................................52

Output (Status) Signals...........................................................................................52

Serial I/O Ports..........................................................................................................53

Serial Port Usage....................................................................................................53

UART Port Operation..............................................................................................53

I2C Port Operation (SL871 and SL871L only).........................................................54

Antenna RF Interface ................................................................................................55

RF-IN......................................................................................................................55

Frequency Plan.......................................................................................................55

Burnout Protection ..................................................................................................55

Jamming Rejection – Active Interference Cancellation............................................55

10 RF FRONT-END DESIGN .............................................................................................56

RF Signal Requirements ...........................................................................................56

GNSS Antenna Polarization ......................................................................................57

Active versus Passive Antenna .................................................................................57

GNSS Antenna Gain .................................................................................................58

System Noise Floor...................................................................................................58

RF Trace Losses.......................................................................................................59

PCB Stack and Trace Impedance .............................................................................59

Input to the Pre-select SAW Filter (SL8721 Gen 2 and SL871-S only) ......................60

Input to the LNA (SL871L AND SL871L-S only) ........................................................60

Powering an External LNA (or active antenna)..........................................................60

RF Interference .........................................................................................................61

Shielding ...................................................................................................................61

11 REFERENCE DESIGN..................................................................................................62

12 MECHANICAL DRAWING ............................................................................................63

13 PCB FOOTPRINT .........................................................................................................64

14 PACKAGING & HANDLING .........................................................................................65

Product Marking and Serialization.............................................................................65

SL871 Family Product User Guide CONTENTS

1VV0301170 Rev. 6 Page 8 of 85 2018-03-13

Product Packaging....................................................................................................66

Moisture Sensitivity ...................................................................................................68

ESD Sensitivity .........................................................................................................70

Assembly Considerations..........................................................................................70

Washing Considerations ...........................................................................................70

Reflow.......................................................................................................................71

Disposal ....................................................................................................................72

Safety........................................................................................................................72

15 ENVIRONMENTAL REQUIREMENTS..........................................................................73

Operating Environmental Limits ................................................................................73

Storage Environmental Limits ...................................................................................73

16 COMPLIANCES............................................................................................................74

RoHS compliance .....................................................................................................74

EU (RED) Declarations of Conformity .......................................................................75

EU (RED) Declaration of Conformity – SL871.........................................................75

EU (RED) Declaration of Conformity – SL871L.......................................................76

EU RED Declaration of Conformity – SL871-S........................................................77

EU RED Declaration of Conformity – SL871L-S......................................................78

17 SAFETY RECOMMENDATIONS ..................................................................................79

18 GLOSSARY AND ACRONYMS....................................................................................80

19 DOCUMENT HISTORY.................................................................................................83

SL871 Family Product User Guide CONTENTS

1VV0301170 Rev. 6 Page 9 of 85 2018-03-13

TABLES

Table 0-1 Product Applicability Table ........................................................................................ 4

Table 2-1 SL871 Family Product Features................................................................................15

Table 2-2 ROM Features (-S modules only).............................................................................15

Table 4-1 Power Management - Command summary ...............................................................27

Table 5-1 Data Retention ..........................................................................................................31

Table 6-1 SL871 and SL871L Horizontal Position Accuracy......................................................32

Table 6-2 SL871 and SL871L Time to First Fix .........................................................................33

Table 6-3 SL871 (Gen 2) and SL871L Receiver Sensitivity.......................................................34

Table 6-4 SL871-S and SL871L-S Position Accuracy ...............................................................35

Table 6-5 SL871-S and SL871L-S Time to First Fix ..................................................................35

Table 6-6 SL871-S and SL871L-S Sensitivity ...........................................................................35

Table 7-1 Default NMEA output messages ...............................................................................37

Table 7-2 Available Messages ..................................................................................................37

Table 7-3 NMEA Talker IDs ......................................................................................................38

Table 7-4 Proprietary Output Messages....................................................................................38

Table 7-5 NMEA Input Commands............................................................................................39

Table 9-1 SL871 (Gen 2) & SL871L Pin-out Table ....................................................................42

Table 9-2 SL871-S & SL871L-S Pin-out Table..........................................................................44

Table 9-3 DC Supply Voltage....................................................................................................46

Table 9-4 SL871 (Gen 2) Power Consumption..........................................................................46

Table 9-5 SL871L Power Consumption.....................................................................................47

Table 9-6 SL871-S Power Consumption ...................................................................................48

Table 9-7 SL871L-S Power Consumption .................................................................................48

Table 9-8 Input Logic Levels: RX and Reset-N, & Ant Sense....................................................49

Table 9-9 Input Logic Levels: Force-On ....................................................................................49

Table 9-10 Output Logic Levels: TX and 1PPS .........................................................................50

Table 9-11 Output Logic Levels: ANT_ON ................................................................................50

Table 9-12 Frequency Plan.......................................................................................................55

Table 10-1 Inductor Loss ..........................................................................................................61

Table 14-1 Product Label Description .......................................................................................65

Table 15-1 Operating Environmental Limits ..............................................................................73

Table 15-2 Storage Environmental Limits..................................................................................73

SL871 Family Product User Guide CONTENTS

1VV0301170 Rev. 6 Page 10 of 85 2018-03-13

FIGURES

Figure 2-1 SL871 (Gen 2) Block Diagram .................................................................................16

Figure 2-2 SL871L Block Diagram ............................................................................................17

Figure 2-3 SL871-S - Block Diagram.........................................................................................18

Figure 2-4 SL871L-S - Block Diagram.......................................................................................19

Figure 2-5 SL871 Family Module – Photo ................................................................................20

Figure 3-1 Evaluation Kit contents............................................................................................21

Figure 3-2 SL871 Evaluation Unit.............................................................................................22

Figure 4-1Jamming Rejection ...................................................................................................25

Figure 4-2 GNSS Low Power (GLP) mode diagram ..................................................................28

Figure 4-3 Periodic Modes diagram ..........................................................................................29

Figure 4-4 Periodic Mode example 1.........................................................................................29

Figure 4-5 Periodic Mode example 2.........................................................................................29

Figure 6-1 Jamming with AIC Disabled .....................................................................................36

Figure 6-2 Jamming with AIC Enabled ......................................................................................36

Figure 9-1 SL871 (Gen 2) and SL871L Pin-out diagram ...........................................................41

Figure 9-2 SL871-S and SL871L-S Pin-out diagram .................................................................43

Figure 10-1 RF Trace Examples ...............................................................................................59

Figure 11-1 SL871 Family Reference Design............................................................................62

Figure 12-1 SL871 Family Mechanical Drawing .......................................................................63

Figure 13-1 SL871 Family PCB Footprint.................................................................................64

Figure 14-1 Product Label........................................................................................................65

Figure 14-2 Tape and Reel Packaging......................................................................................66

Figure 14-3 Tape and Reel Detail .............................................................................................67

Figure 14-4 Moisture Sensitive Devices Label...........................................................................69

Figure 14-5 Recommended Reflow Profile...............................................................................71

Figure 16-1 EU RED Declaration of Conformity - SL871 ...........................................................75

Figure 16-2 EU RED Declaration of Conformity - SL871L .........................................................76

Figure 16-3 EU RED Declaration of Conformity - SL871-S .......................................................77

Figure 16-4 EU RED Declaration of Conformity - SL871L-S......................................................78

EQUATIONS

Equation 10-1 Carrier to Noise Ratio.........................................................................................58

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