Telit Wireless Solutions GE310-GNSS Guide

[01.2017]
Mod.0818 2017-01 Rev.0
GE310-GNSS
Hardware Design Guide
1VV0301564 Rev. 5 –2019-01-23

GE310-GNSS Hardware Design Guide
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SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE
NOTICE
While reasonable efforts have been made to assure 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 obligationto notify anyperson 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.
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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.
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This instruction manual and the Telit products described in this instruction manual may be,
include or describe copyrighted Telit material, such as computer programs stored in
semiconductor memories or other media. Laws in the Italy and other countries preserve for
Telit and its licensors certain exclusive rights for copyrighted material, including the
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contained herein or in the Telit products described in this instruction manual may not be
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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 3rd Party supplied Software (SW) products described inthis instruction manual
may include copyrighted Telit and other 3rd Party supplied computer programs stored in
semiconductor memories or other media. Laws in the Italy and other countries preserve for
Telit and other 3rd 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 3rd Party supplied SW
computer programs contained in the Telit products described in this instruction manual may
not be copied (reverse engineered) or reproduced in any manner without theexpresswritten
permission of Telit or the 3rd 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 3rd 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.

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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 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.

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APPLICABILITY TABLE
PRODUCTS
GE310-GNSS

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Contents
NOTICE 2
COPYRIGHTS................................................................................................ 2
COMPUTER SOFTWARE COPYRIGHTS...................................................... 2
USAGE AND DISCLOSURE RESTRICTIONS............................................... 3
I. License Agreements..................................................................... 3
II. Copyrighted Materials................................................................... 3
III. High Risk Materials....................................................................... 3
IV. Trademarks .................................................................................. 3
V. Third Party Rights......................................................................... 3
APPLICABILITY TABLE................................................................................ 4
CONTENTS.................................................................................................... 5
1. INTRODUCTION.......................................................................... 9
Scope........................................................................................... 9
Audience....................................................................................... 9
Contact Information, Support........................................................ 9
Text Conventions........................................................................ 10
Related Documents.................................................................... 11
2. GENERAL PRODUCT DESCRIPTION ...................................... 12
Overview..................................................................................... 12
Product Variants and Frequency Bands...................................... 12
Target market............................................................................. 13
Main features.............................................................................. 13
TX Output Power........................................................................ 14
Mechanical specifications........................................................... 15
2.6.1. Dimensions................................................................................. 15
3. PINS ALLOCATION................................................................... 16
Pin-out........................................................................................ 16
LGA Pads Layout........................................................................ 24
4. POWER SUPPLY....................................................................... 25
Power Supply Requirements....................................................... 25
Power Consumption ................................................................... 26

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General Design Rules................................................................. 27
4.3.1. Electrical Design Guidelines ....................................................... 27
4.3.1.1. +5V Source Power Supply Design Guidelines ............................ 27
4.3.2. +12V Source Power Supply Design Guidelines .......................... 28
4.3.2.1. Battery Source Power Supply Design Guidelines........................ 29
4.3.3. Thermal Design Guidelines......................................................... 30
4.3.4. Power Supply PCB layout Guidelines......................................... 31
RTC Bypass out.......................................................................... 32
VAUX Power Output................................................................... 33
5. DIGITAL SECTION .................................................................... 34
Logic Levels................................................................................ 34
Power On.................................................................................... 35
Power Off.................................................................................... 39
Unconditional Restart.................................................................. 41
5.4.1. PIN DESCRIPTION.................................................................... 41
5.4.2. Operating levels.......................................................................... 42
Communication ports.................................................................. 44
5.5.1. Serial Ports................................................................................. 44
5.5.1.1. MODEM SERIAL PORT 0 (USIF0)............................................. 44
5.5.1.2. MODEM SERIAL PORT 1 (USIF1)............................................. 46
5.5.1.3. RS232 LEVEL TRANSLATION................................................... 48
5.5.1.4. 5V UART level translation........................................................... 51
General purpose I/O................................................................... 52
5.6.1. Using a GPIO as INPUT............................................................. 53
5.6.2. Using a GPIO as OUTPUT......................................................... 54
5.6.3. Indication of network service availability ..................................... 54
External SIM Holder.................................................................... 55
6. GSM RF SECTION..................................................................... 56
Antenna requirements................................................................. 56
6.1.1. Main Antenna ............................................................................. 56
6.1.2. PCB Design guidelines............................................................... 57
6.1.2.1. Transmission line design ............................................................ 58
6.1.2.2. Transmission Line Measurements .............................................. 59
6.1.2.3. Antenna Installation Guidelines................................................... 60
7. GNSS RECEIVER SECTION...................................................... 61
Signals Description..................................................................... 61

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Power Consumption ................................................................... 61
GNSS Hosted configuration........................................................ 62
GNSS Stand Alone configuration................................................ 63
GNSS RF Front End Design....................................................... 63
7.5.1. RF Signal Requirements............................................................. 63
7.5.2. GPS Antenna Polarization.......................................................... 65
7.5.3. GPS Antenna Gain ..................................................................... 65
7.5.4. System Noise Floor .................................................................... 66
7.5.5. Active versus Passive Antenna................................................... 66
7.5.6. GPS Antenna - PCB Line Guidelines.......................................... 66
7.5.7. RF Trace Losses ........................................................................ 67
7.5.8. Implications of the Pre-select SAW Filter.................................... 67
7.5.9. External LNA Gain and Noise Figure.......................................... 67
7.5.10. Powering the External LNA......................................................... 68
7.5.11. External LNA Enable .................................................................. 69
7.5.12. Shielding..................................................................................... 69
7.5.13. GPS Antenna –Installation......................................................... 69
8. BLUETOOTH SECTION............................................................. 70
Main Features............................................................................. 70
Bluetooth Profiles........................................................................ 70
8.2.1. Hands Free Gateway (HFG)....................................................... 70
8.2.2. Phone Book Access Profile (PBAP)............................................ 70
8.2.3. Phone Book Access Profile Client (PBAPC) ............................... 70
8.2.4. Serial Port Profile (SPP) ............................................................. 71
BLUETOOTH RF SECTION ....................................................... 71
8.3.1. Antenna requirements................................................................. 71
8.3.2. PCB Design guidelines............................................................... 71
8.3.3. External Antenna........................................................................ 72
8.3.4. Bluetooth Power Consumption.................................................... 73
9. AUDIO SECTION ....................................................................... 74
Analog Audio.............................................................................. 74
9.1.1. Signals Description..................................................................... 74
10. MECHANICAL DESIGN............................................................. 75
11. APPLICATION PCB DESIGN .................................................... 76
PCB pad design.......................................................................... 77
PCB pads ................................................................................... 77

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Stencil......................................................................................... 78
Solder paste ............................................................................... 78
Solder Reflow............................................................................. 78
12. PACKAGING.............................................................................. 80
Tray............................................................................................ 80
Moisture sensitivity ..................................................................... 82
13. CONFORMITY ASSESSMENT ISSUES .................................... 83
Approvals.................................................................................... 83
Declaration of Conformity ........................................................... 83
14. SAFETY RECOMMENDATIONS................................................ 84
READ CAREFULLY.................................................................... 84
15. REFERENCE TABLE OF RF BANDS CHARACTERISTICS..... 85
16. ACRONYMS............................................................................... 86
17. DOCUMENT HISTORY .............................................................. 88

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1. INTRODUCTION
Scope
This document introduces the Telit GE310 modules and presents possible and
recommended hardware solutions for developing a product based on this module. All the
features and solutions detailed in this document are applicable to all GE310-GNSS
variants, where GE310-GNSS refers to the variants listed in the applicability table.
Obviously, this document cannot embrace every hardware solution or every product that
can be designed. Where the suggested hardware configurations need not be considered
mandatory, the information given should be used as a guide and a starting point for
properly developing your product with the Telit module.
Audience
This document is intended for Telit customers, especially system integrators, about to
implement their applications using the Telit module.
Contact Information, Support
For general contact, technical support services, technical questions and report
documentation errors contact Telit Technical Support at:
•[e-mail]
•[e-mail]
•[e-mail]
•[e-mail]
Alternatively, use:
http://www.telit.com/support
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.

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Text Conventions
Danger –This information MUST be followed or catastrophic
equipment failure or bodily injury may occur.
Caution or Warning –Alerts the user to important points about
integrating the module, if these points are not followed, the module and
end user equipment may fail or malfunction.
Tip or Information –Provides advice and suggestions that may be
useful when integrating the module.
All dates are in ISO 8601 format, i.e. YYYY-MM-DD.