Telit Communications S p A LE920NA1 User Manual

LE920 Hardware User Guide

1vv0301026 Rev.9 - 2016-03-29

PRODUCT

LE920-EUG (cs1550f-B)

LE920-NAG (cs1550f-A)

LE920-EU (cs1647c)

LE920-NA (cs1701)

LE920-CN (cs1648D)

LE920-NA AUTO S (cs1717)

LE920 Hardware User Guide

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APPLICABILITY TABLE

APPLICABILITY TABLE 1

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SPECIFICATIONS 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 entirely 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 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 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 instruction 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 3rd Party supplied Software (SW) products described in this 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 the express written 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.

LE920 Hardware User Guide

1vv0301026 Rev.8 2015-01-03

Usage and Disclosure Restrictions

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.

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

High Risk Materials

Components, units, or third-party products used in the product described herein are NOT faulttolerant 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.

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.

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Contents

1. Introduction ................................................. 9

1.1. Scope ..................................................... 9

1.2. Audience .................................................. 9

1.3. Contact Information, Support .............................. 9

1.4. Document Organization .................................... 10

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

1.6. Related Documents ........................................ 11

2. General Product Description ................................. 12

2.1. Overview ................................................. 12

2.2. LE920 Mechanical Dimensions .............................. 13

2.3. Weight ................................................... 13

2.4. Environmental requirements ............................... 14

2.4.1. Temperature range .......................................... 14

2.4.2. RoHS compliance ............................................ 14

2.5. Operating Frequency ...................................... 15

2.5.1. LE920-EUG(cs1550f-B), LE920-EU (cs1647c) ................... 15

2.5.2. LE920-NAG (cs1550f-A) ...................................... 15

2.5.3. LE920-NA (cs1701), LE920-NA AUTO S (cs1717) ................ 16

2.5.4. LE920-CN (cs1648D) ......................................... 17

2.6. Sensitivity .............................................. 18

2.7. Conformity assessment issues .............................. 18

2.7.1. FCC/IC Regulatory notices .................................. 18

2.7.1.1. Modification statement .................................. 18

2.7.1.2. Interference statement .................................. 18

2.7.1.3. RF exposure ............................................. 18

2.7.1.4. FCC Class B digital device notice ....................... 19

2.7.1.5. Labelling Requirements for the Host device .............. 19

3. LE920 Module Connections .................................... 21

3.1. PIN-OUT .................................................. 21

3.1.1. LGA Pads Layout ............................................ 28

4. Hardware Commands ........................................... 29

4.1. Turning ON the LE920 ..................................... 29

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4.2. Initialization and Activation state ...................... 29

4.3. Turning OFF the LE920 .................................... 30

4.3.1. Shutdown by Software Command ............................... 31

4.3.2. Hardware Shutdown .......................................... 32

4.3.3. Hardware Unconditional Restart (RESET) ..................... 33

4.3.4. Hardware Unconditional Shutdown ............................ 34

4.4. Summary of Turning ON and OFF the module ................. 35

5. Power Supply ................................................ 36

5.1. Power Supply Requirements ................................ 36

5.2. General Design Rules ..................................... 38

5.2.1. Electrical Design Guidelines ............................... 38

5.2.1.1. + 5V Input Source Power Supply Design Guidelines ........ 38

5.2.1.2. + 12V Input Source Power Supply Design Guidelines ....... 39

5.2.1.3. Battery Source Power Supply Design Guidelines ........... 41

5.2.2. Thermal Design Guidelines .................................. 42

5.2.3. Power Supply PCB Layout Guidelines ......................... 43

6. Antenna(s) .................................................. 45

6.1. GSM/WCDMA/LTE Antenna Requirements ....................... 45

6.2. GSM/WCDMA/LTE Antenna – PCB line Guidelines .............. 46

6.3. GSM/WCDMA/LTE Antenna – Installation Guidelines .......... 47

6.4. Antenna Diversity Requirements ........................... 47

6.5. GPS/GNSS Antenna Requirements ............................ 48

6.5.1. Combined GPS/GNSS Antenna .................................. 49

6.5.2. Linear and Patch GPS/GNSS Antenna .......................... 49

6.5.3. Front End Design Considerations ............................ 49

6.5.4. GPS/GNSS Antenna - PCB Line Guidelines ..................... 50

6.5.5. GPS/GNSS Antenna – Installation Guidelines ................. 50

7. Logic Level Specifications .................................. 51

8. USB Port .................................................... 52

9. Serial Ports ................................................ 53

9.1. Modem Serial Port 1 ...................................... 54

9.2. Modem Serial Port 2 ...................................... 55

9.3. RS232 Level Translation .................................. 55

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10. Peripheral Ports ............................................ 57

10.1. SPI – Serial Peripheral Interface ...................... 57

10.2. I2C - Inter-integrated circuit ......................... 58

10.3. SDIO – Secure Digital I/O .............................. 58

10.4. Wi-Fi (SDIO) control Interface ......................... 60

11. Audio Section Overview ...................................... 61

11.1. Analog Audio ........................................... 61

11.2. Digital Audio .......................................... 61

12. General Purpose I/O ......................................... 63

12.1. Logic Level Specifications ............................. 64

12.2. Using a GPIO Pad as Input .............................. 64

12.3. Using a GPIO Pad as Output ............................. 65

12.4. Using the Temperature Monitor Function ................. 65

12.4.1. Short Description ........................................ 65

12.5. Indication of Network Service Availability ............. 66

12.6. RTC Bypass ............................................. 67

12.7. VAUX Power Output ...................................... 67

13. ADC section ................................................. 68

13.1. ADC Converter .......................................... 68

13.1.1. Description .............................................. 68

13.1.2. Using ADC Converter ...................................... 68

14. Mounting the module on your board ........................... 69

14.1. General ................................................ 69

14.2. Finishing & Dimensions ................................. 69

14.3. Recommended foot print for the application ............. 70

14.4. Stencil ................................................ 71

14.5. PCB Pad Design ......................................... 71

14.6. Recommendations for PCB Pad Dimensions (mm) ............ 72

14.7. Solder Paste ........................................... 73

14.7.1. Solder Reflow ............................................ 73

15. Application guide ........................................... 75

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15.1. Debug of the LE920 in production ....................... 75

15.2. Bypass capacitor on Power supplies ..................... 76

15.3. SIM interface .......................................... 77

15.3.1. SIM schematic example .................................... 77

15.3.2. eSIM interface guidelines ................................ 78

15.4. EMC recommendations .................................... 80

15.5. Download and Debug Port ................................ 81

16. Packing system .............................................. 82

16.1. Tray Drawing ........................................... 84

16.2. Moisture Sensitivity ................................... 85

17. Safety Recommendations ...................................... 86

18. Document History ............................................ 87

- Adding section 2.7 Conformity assessment issues ............................. 88

1. Introduction

1.1. Scope

The aim of this document is to present possible and recommended hardware solutions useful for developing a product with the Telit LE920 module. All the features and solutions detailed are applicable to all LE920, where “LE920” refers to the modules listed in the applicability table.

If a specific feature is applicable to a specific product, it will be clearly highlighted.

NOTICE:

The description text “LE920” refers to all modules listed in the APPLICABILITY TABLE 1.

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1.2. Audience

This document is intended for Telit customers, especially system integrators, about to implement their applications using our LE920 module.

1.3. Contact Information, Support

For general contact, technical support, to report documentation errors and to order manuals, contact Telit’s Technical Support Center (TTSC) at:

TS-EMEA@telit.com TS-NORTHAMERICA@telit.com TS-LATINAMERICA@telit.com TS-APAC@telit.com

Alternatively, use:

http://www.telit.com/en/products/technical-support-center/contact.php

For detailed information about where you can buy the Telit modules or for recommendations on accessories and components visit:

http://www.telit.com

To register for product news and announcements or for product questions contact Telit’s Technical Support Center (TTSC).

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.

1.4. Document Organization

This document contains the following chapters:

Chapter 1: “Introduction” provides a scope for this document, target audience, contact and

support information, and text conventions.

Chapter 2: “General Product Description” gives an overview of the features of the product.

Chapter 3: “LE920 Module Connections” deals with the pin out configuration and layout.

Chapter 4: “Hardware Commands” instructs how to control the module via hardware

Chapter 5: “Power Supply” deals with supply and consumption.

Chapter 6: “Antenna” The antenna connection and board layout design are the most important

parts in the full product design

Chapter 7: “Logic Level specifications” Specific values adopted in the implementation of

logic levels for this module.

Chapter 8: “USB Port”

Chapter 9: “Serial Ports”

Chapter 10: “Peripheral Ports”

Chapter 11: “Audio Section Overview”

Chapter 12: “General Purpose I/O” How the general purpose I/O pads can be configured.

Chapter 13 “DAC and ADC Section” Deals with these two kind of analog converters.

Chapter 14: “Mounting the module on your board”

Chapter 15: “Application Guides”

Chapter 16: “Packing System”

Chapter 17: “Safety Recommendations”

Chapter 18: “Document History”

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1.5. 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.

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1.6. Related Documents

 LE920-EUG/NAG Product Description, 80407ST10118A

 LE920-EUG/NAG AT command reference guide, 80407ST10116A

 Telit EVK2 User Guide, 1vv0300704

 Telit xE920 Audio Settings Application Note, 80404NT10095A

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2. General Product Description

2.1. Overview

The aim of this document is to present possible and recommended hardware solutions useful for developing a product with the Telit LE920 module.

In this document all the basic functions of a wireless module will be taken into account; for each one of them a valid hardware solution will be suggested and usually incorrect solutions and common errors to be avoided will be highlighted. Obviously this document cannot embrace every hardware solution or every product that may be designed. Obviously avoiding invalid solutions must be considered as mandatory. Whereas 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 LE920 module.

.

NOTICE:

The integration of the GSM/GPRS/EGPRS/WCDMA/HSPA+/LTE LE920 cellular module within user application must be done according to the design rules described in this manual.

The information presented in this document is believed to be accurate and reliable. However, no responsibility is assumed by Telit Communication S.p.A. for its use, such as any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent rights of Telit Communication S.p.A. other than for circuitry embodied in Telit products. This document is subject to change without notice.

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2.2. LE920 Mechanical Dimensions

The Telit LE920 module overall dimensions are:

• Length: 34 mm , +/- 0.15 mm Tolerance

• Width: 40 mm , +/- 0.15 mm Tolerance

• Thickness: 2.9 mm , +/- 0.13 mm Tolerance

2.3. Weight

The module weight of LE920 is about 9.0 gram.

LE920 Hardware User Guide

Operating Temperature Range

–40°C ~ +85°C

Storage and non-operating Temperature Range

–40°C ~ +85°C

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2.4. Environmental requirements

2.4.1. Temperature range

2.4.2. RoHS compliance

LE920 Hardware User Guide

As a part of Telit corporate policy of environmental protection, the LE920 complies with the RoHS (Restriction of Hazardous Substances) directive of the European Union (EU directive 2011/65/EU).

Mode

Freq. TX (MHz)

Freq. RX (MHz)

Channels

TX - RX offset

GSM850

824 ~ 849

869 ~ 894

128 ~ 251

45 MHz

EGSM900 890 ~ 915

935 ~ 960

0 ~ 124

45 MHz

880 ~ 890

925 ~ 935

975 ~ 1023

45 MHz

DCS1800

1710 ~ 1785

1805 ~ 1880

512 ~ 885

95MHz

PCS1900

1850 ~ 1910

1930 ~ 1990

512 ~ 810

80MHz

WCDMA2100 – B1

1920 ~ 1980

2110 ~ 2170

Tx: 9612 ~ 9888 Rx: 10562 ~ 10838

190MHz

WCDMA1800 – B3

1710 ~ 1785

1805 ~ 1880

Tx: 937 ~ 1288 Rx: 1162 ~ 1513

95MHz

WCDMA900 – B8

880 ~ 915

925 ~ 960

Tx: 2712 ~ 2863 Rx: 2937 ~ 3088

45MHz

LTE2100 – B1

1920 ~ 1980

2110 ~ 2170

Tx: 18000 ~ 18599 Rx: 0 ~ 599

190MHz

LTE1800 – B3

1710 ~ 1785

1805 ~ 1880

Tx: 19200 ~ 19949 Rx: 1200 ~ 1949

95MHz LTE2600 – B7

2500 ~ 2570

2620 ~ 2690

Tx: 20750 ~ 21449 Rx: 2750 ~ 3449

120MHz

LTE900 – B8

880 ~ 915

925 ~ 960

Tx: 21450 ~ 21799 Rx: 3450 ~ 3799

45MHz

LTE800 – B20

832 ~ 862

791 ~ 821

Tx: 24150 ~ 24449 Rx: 6150 ~ 6449

-41MHz Mode

Freq. TX (MHz)

Freq. RX (MHz)

Channels

TX - RX offset

GSM850

824 ~ 849

869 ~ 894

128 ~ 251

45 MHz

EGSM900 890 ~ 915

935 ~ 960

0 ~ 124

45 MHz

880 ~ 890

925 ~ 935

975 ~ 1023

45 MHz

DCS1800

1710 ~ 1785

1805 ~ 1880

512 ~ 885

95MHz

PCS1900

1850 ~ 1910

1930 ~ 1990

512 ~ 810

80MHz

WCDMA2100 – B1

1920 ~ 1980

2110 ~ 2170

Tx: 9612 ~ 9888 Rx: 10562 ~ 10838

190MHz

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2.5. Operating Frequency

The operating frequencies in GSM850, EGSM900, DCS1800, PCS1900, WCDMA & LTE modes are conformed to the 3GPP specifications.

2.5.1. LE920-EUG(cs1550f-B), LE920-EU (cs1647c)

2.5.2. LE920-NAG (cs1550f-A)

LE920 Hardware User Guide

WCDMA1900 – B2

1850 ~ 1910

1930 ~ 1990

Tx: 9262 ~ 9538 Rx: 9662 ~ 9938

80MHz

WCDMA1700 – B4

1710 ~ 1755

2110 ~ 2155

Tx: 1312 ~ 1513 Rx: 1537 ~ 1738

400 MHz

WCDMA850 – B5

824 ~ 849

869 ~ 894

Tx: 4132 ~ 4233 Rx: 4357 ~ 4458

45MHz

WCDMA800 – B6

830 ~ 840

875 ~ 885

Tx: 4162 ~ 4188 Rx: 4387 ~ 4413

45MHz LTE2100 – B1

1920 ~ 1980

2110 ~ 2170

Tx: 18000 ~ 18599 Rx: 0 ~ 599

190MHz

LTE1900 – B2

1850 ~ 1910

1930 ~ 1990

Tx: 18600 ~ 19199 Rx: 600 ~ 1199

80MHz LTE1700 – B4

1710~ 1755

2110 ~ 2155

Tx: 19950 ~ 20399 Rx: 1950 ~ 2399

400MHz

LTE850 – B5

824 ~ 849

869 ~ 894

Tx: 20400 ~ 20649 Rx: 2400 ~ 2649

45MHz

LTE700 – B17

704 ~ 716

734 ~ 746

Tx: 23730 ~ 23849 Rx: 5730 ~ 5849

30MHz

WCDMA1900 – B2

1850 ~ 1910

1930 ~ 1990

Tx: 9262 ~ 9538 Rx: 9662 ~ 9938

80MHz

WCDMA1700 – B4

1710 ~ 1755

2110 ~ 2155

Tx: 1312 ~ 1513 Rx: 1537 ~ 1738

400 MHz

WCDMA850 – B5

824 ~ 849

869 ~ 894

Tx: 4132 ~ 4233 Rx: 4357 ~ 4458

45MHz LTE1900 – B2

1850 ~ 1910

1930 ~ 1990

Tx: 18600 ~ 19199 Rx: 600 ~ 1199

80MHz

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2.5.3. LE920-NA (cs1701), LE920-NA AUTO S (cs1717)

Mode Freq. TX (MHz) Freq. RX (MHz) Channels TX - RX offset

LE920 Hardware User Guide

LTE1700 – B4

1710~ 1755

2110 ~ 2155

Tx: 19950 ~ 20399 Rx: 1950 ~ 2399

400MHz

LTE850 – B5

824 ~ 849

869 ~ 894

Tx: 20400 ~ 20649 Rx: 2400 ~ 2649

45MHz

LTE2600 – B7

2500 ~ 2570

2620 ~ 2690

Tx: 20750 ~ 21449 Rx: 2750 ~ 3449

120MHz

30MHz Mode

Freq. TX (MHz)

Freq. RX (MHz)

Channels

TX - RX offset

EGSM900 890 ~ 915

935 ~ 960

0 ~ 124

45 MHz

880 ~ 890

925 ~ 935

975 ~ 1023

45 MHz

DCS1800

1710 ~ 1785

1805 ~ 1880

512 ~ 885

95MHz

WCDMA2100 – B1

1920 ~ 1980

2110 ~ 2170

Tx: 9612 ~ 9888 Rx: 10562 ~ 10838

190MHz

WCDMA1800 – B3

1710 ~ 1785

1805 ~ 1880

Tx: 937 ~ 1288 Rx: 1162 ~ 1513

95MHz WCDMA900 – B8

880 ~ 915

925 ~ 960

Tx: 2712 ~ 2863 Rx: 2937 ~ 3088

45MHz

LTE2100 – B1

1920 ~ 1980

2110 ~ 2170

Tx: 18000 ~ 18599 Rx: 0 ~ 599

190MHz

LTE1800 – B3

1710 ~ 1785

1805 ~ 1880

Tx: 19200 ~ 19949 Rx: 1200 ~ 1949

95MHz LTE900 – B8

880 ~ 915

925 ~ 960

Tx: 21450 ~ 21799 Rx: 3450 ~ 3799

45MHz

LTE TDD 2600 – B38

2570 ~ 2620

Tx: 37750 ~ 38250 Rx: 37750 ~ 38250

0MHz LTE TDD 1900 – B39

1880 ~ 1920

Tx: 38250 ~ 38650 Rx: 38250 ~ 38650

0MHz LTE TDD 2300 – B40

2300 ~ 2400

Tx: 38650 ~ 39650 Rx: 38650 ~ 39650

0MHz LTE TDD 2500 – B41

2496 ~ 2690

Tx: 39650 ~ 41590 Rx: 39650 ~ 41590

0MHz TDSCDMA2000 – B34

2010 ~ 2025

Tx: 10054 ~ 10121 Rx: 10054 ~ 10121

0MHz TDSCDMA1900 – B39

1880 ~ 1920

Tx: 9404 ~ 9596 Rx: 9404 ~ 9596

0MHz

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LTE700 – B17 704 ~ 716 734 ~ 746

2.5.4. LE920-CN (cs1648D)

Tx: 23730 ~ 23849 Rx: 5730 ~ 5849

Frequency band

Antenna gain

700 MHz

5,66 dBi

850 MHz

6,13 dBi

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2.6. Sensitivity

LE920 maximum sensitivity levels are as follow:

 -113 dBm @ 2G

 -112 dBm @ 3G

 -111 dBm @ TD-SCDMA (BW=1.6MHz)

 -102 dBm @ 4G FDD (BW=5MHz)

 -101 dBm @ 4G TDD (BW=5MHz)

2.7. Conformity assessment issues

2.7.1. FCC/IC Regulatory notices

2.7.1.1. Modification statement

Telit has not approved any changes or modifications to this device by the user. Any changes or modifications could void the user’s authority to operate the equipment.

Telit n’approuve aucune modification apportée à l’appareil par l’utilisateur, quelle qu’en soit la nature. Tout changement ou modification peuvent annuler le droit d’utilisation de l’appareil par l’utilisateur.

2.7.1.2. Interference statement

This device complies with Part 15 of the FCC Rules and Industry Canada licence-exempt RSS standard(s). Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device.

Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. L'exploitation est autorisée aux deux conditions suivantes : (1) l'appareil ne doit pas produire de brouillage, et (2) l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en compromettre le fonctionnement.

2.7.1.3. RF exposure

This equipment complies with FCC and IC radiation exposure limits set forth for an uncontrolled environment. The antenna should be installed and operated with minimum distance of 20 cm between the radiator and your body.

Antenna gain must be below:

1700 MHz

5,00 dBi

1900 MHz

8,01 dBi

2600 MHz

8,01 dBi

Bande de fréquence

Gain de l'antenne

700 MHz

5,66 dBi

850 MHz

6,13 dBi

1700 MHz

5,00 dBi

1900 MHz

8,01 dBi

2600 MHz

8,01 dBi

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This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.

Cet appareil est conforme aux limites d'exposition aux rayonnements de la IC pour un environnement non contrôlé. L'antenne doit être installé de façon à garder une distance minimale de 20 centimètres entre la source de rayonnements et votre corps. Gain de l'antenne doit être ci-dessous:

L'émetteur ne doit pas être colocalisé ni fonctionner conjointement avec à autre antenne ou autre émetteur.

2.7.1.4. FCC Class B digital device notice

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

- Reorient or relocate the receiving antenna.

- Increase the separation between the equipment and receiver.

- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

- Consult the dealer or an experienced radio/TV technician for help.

2.7.1.5. Labelling Requirements for the Host device

The host device shall be properly labelled to identify the modules within the host device. The certification label of the module shall be clearly visible at all times when installed in the host device, otherwise the host device must be labelled to display the FCC ID and IC of the module, preceded by the words "Contains transmitter module", or the word "Contains", or similar wording expressing the same meaning, as follows:

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Contains FCC ID: RI7LE920NA1 Contains IC: 5131A-LE920NA1

L'appareil hôte doit être étiqueté comme il faut pour permettre l'identification des modules qui s'y trouvent. L'étiquette de certification du module donné doit être posée sur l'appareil hôte à un endroit bien en vue en tout temps. En l'absence d'étiquette, l'appareil hôte doit porter une étiquette donnant le FCC ID et le IC du module, précédé des mots « Contient un module d'émission », du mot « Contient » ou d'une formulation similaire exprimant le même sens, comme suit:

Contains FCC ID: RI7LE920NA1 Contains IC: 5131A-LE920NA1

CAN ICES-3 (B) / NMB-3 (B)

This Class B digital apparatus complies with Canadian ICES-003.

Cet appareil numérique de classe B est conforme à la norme canadienne ICES-003.

PAD

Signal

I/O

Function

Type

COMMENT

USB HS 2.0 Communication Port

D19

USB_D+

I/O

USB differential Data(+)

F19

USB_D-

I/O

USB differential Data(-)

A18

USB_VBUS

AI

Power sense for the internal USB transceiver

Power

2.2V – 5.25V @ max 5mA

Asynchronous UART – Prog. / data +HW Flow Control

AH19

C103/TXD

I

Serial data input (TXD) from DTE

1.8V

AF19

C104/RXD

O

Serial data output to DTE

1.8V

AC18

C108/DTR

I

Input for Data terminal ready signal (DTR) from DTE

1.8V

AA18

C105/RTS

I

Input for Request to send signal (RTS) from DTE

1.8V

AK19

C106/CTS

O

Output for Clear to send signal (CTS) to DTE

1.8V

AE18

C109/DCD

O

Output for Data carrier detect signal (DCD) to DTE

1.8V

AG18

C107/DSR

O

Output for Data set ready signal (DSR) to DTE

1.8V

AJ18

C125/RING

O

Output for Ring indicator signal (RI) to DTE

1.8V

Asynchronous Auxiliary UART

AB19

TXD_AUX

O

Auxiliary UART (TX Data to DTE)

1.8V

AD19

RXD_AUX

I

Auxiliary UART (RX Data from DTE)

1.8V

SPI – Serial Peripheral Interface

P19

SPI_CLK

O

SPI Clock output

1.8V

M19

SPI_MISO

I

SPI data Master Input Slave output

1.8V

K19

SPI_MOSI

O

SPI data Master Output Slave input

1.8V

N18

SPI_CS

O

SPI Chip select output

1.8V

SDIO – Secure Digital I/O

AH17

SD/MMC_CMD

O

SD Command

1.8/2.95V

AD17

SD/MMC_CLK

O

SD Card Clock

1.8/2.95V

Y17

SD/MMC_DATA0

I/O

SD Serial Data 0

1.8/2.95V

AF17

SD/MMC_DATA1

I/O

SD Serial Data 1

1.8/2.95V

AB17

SD/MMC_DATA2

I/O

SD Serial Data 2

1.8/2.95V

W17

SD/MMC_DATA3

I/O

SD Serial Data 3

1.8/2.95V

U17

SD/MMC_CD

I

SD card detect input

1.8V

Active Low

Wi-Fi (SDIO) control Interface

AB3

WiFi_SD_CMD

O

Wi-Fi SD Command

1.8V

AM3

WiFi_SD_CLK

O

Wi-Fi SD Clock

1.8V

AD3

WiFi_SD _DATA0

I/O

Wi-Fi SD Serial Data 0

1.8V

AF3

WiFi_SD _DATA1

I/O

Wi-Fi SD Serial Data 1

1.8V

LE920 Hardware User Guide

1vv0301026 Rev.8 2015-01-03

3. LE920 Module Connections

3.1. PIN-OUT

PAD

Signal

I/O

Function

Type

COMMENT

AH3

WiFi_SD _DATA2

I/O

Wi-Fi SD Serial Data 2

1.8V

AK3

WiFi_SD _DATA3

I/O

Wi-Fi SD Serial Data 3

1.8V

Y3

WiFi_RST_Ctr

O

Wi-Fi Reset output control / Power enable control

1.8V

Active Low

SIM Card Interface 1

A10

SIMCLK1

O

External SIM signal – Clock

1.8/2.85V

B11

SIMRST1

O

External SIM signal – Reset

1.8/2.85V

B9

SIMIO1

I/O

External SIM signal - Data I/O

1.8/2.85V

B7

SIMIN1

I

External SIM signal - Presence (active low)

1.8V

A8

SIMVCC1

-

External SIM signal – Power supply for the SIM

1.8/2.85V

E8

ESIM_RST

-

Internal eSIM signal – Reset

1.8/2.85V

Analog Audio interface

B5

EAR1_MT+

AO

Earphone signal output1, phase +

Audio

A4

EAR1_MT-

AO

Earphone signal output1, phase -

Audio

B3

MIC1_MT+

AI

Mic signal input1, phase +

Audio

A2

MIC1_MT-

AI

Mic signal input1, phase -

Audio

Digital Voice interface (DVI)

D11

DVI_WA0

O

Digital Voice interface (WA0 master output)

1.8V

C8

DVI_RX

I

Digital Voice interface (RX)

1.8V

D9

DVI_TX

O

Digital Voice interface (TX)

1.8V

C10

DVI_CLK

O

Digital Voice interface (CLK master output)

1.8V

Digital I/O

F9

GPIO_01

I/O

GPIO_01

1.8V

I2C alternate

E10

GPIO_02

I/O

GPIO_02

1.8V

I2C alternate

F11

GPIO_03

I/O

GPIO_03

1.8V

I2C alternate

E12

GPIO_04

I/O

GPIO_04

1.8V

I2C alternate

F13

GPIO_05

I/O

GPIO_05

1.8V

I2C alternate

E14

GPIO_06

I/O

GPIO_06

1.8V

I2C alternate

R18

GPIO_07

I/O

GPIO_07

1.8V

I2C alternate

S19

GPIO_08

I/O

GPIO_08

1.8V

I2C alternate

U19

GPIO_09

I/O

GPIO_09

1.8V

I2C alternate

W19

GPIO_10

I/O

GPIO_10

1.8V

I2C alternate

RF Section

AD1

Antenna

I/O

GSM/EDGE/UMTS/LTE Antenna (50 Ohm)

RF

AU9

ANT_DIV

I

UMTS/LTE Antenna Diversity Input (50 Ohm)

RF

GPS Section

S1

ANT_GPS

I

GPS Antenna (50 Ohm)

RF

V2

GPS_LNA_EN

O

Enable the external regulator for GPS LNA

1.8V

Miscellaneous Function

AP1

RESET#

I

Reset Input

Active Low

AS1

ON_OFF#

I

Input Command for Power ON

Active Low

LE920 Hardware User Guide

1vv0301026 Rev.8 2015-01-03

PAD

Signal

I/O

Function

Type

COMMENT

AN12

SHDN_N

I

Unconditional Shut down Input

Active Low

P17

VAUX/PWRMON

O

Supply Output for External Accessories / Power ON Monitor

1.8V

F17

VRTC

AI/ AO

VRTC Backup Capacitor

Power

To be used to back up the RTC section

D5

ADC_IN1

AI

Analog/Digital Converter Input 1

Analog

E6

ADC_IN2

AI

Analog/Digital Converter Input 2

Analog

F7

ADC_IN3

AI

Analog/Digital Converter Input 3

Analog

AU3

STAT_LED

O

Status Indicator LED

1.8V

AN10

SW_RDY

O

Indicates that the boot sequence completed successfully

1.8V

Power Supply

AP17

VBATT

-

Main Power Supply (Digital Section)

Power

AP19

VBATT

-

Main Power Supply (Digital Section)

Power

AR18

VBATT

-

Main Power Supply (Digital Section)

Power

AS17

VBATT_PA

-

Main Power Supply (RF Transmit Power Section)

Power

AS19

VBATT_PA

-

Main Power Supply (RF Transmit Power Section)

Power

AT18

VBATT_PA

-

Main Power Supply (RF Transmit Power Section)

Power

AU17

VBATT_PA

-

Main Power Supply (RF Transmit Power Section)

Power

AU19

VBATT_PA

-

Main Power Supply (RF Transmit Power Section)

Power

A6

GND

-

Ground

A12

GND

-

Ground

B13

GND

-

Ground

B15

GND

-

Ground

B17

GND

-

Ground

C4

GND

-

Ground

C6

GND

-

Ground

D3

GND

-

Ground

D7

GND

-

Ground

E18

GND

-

Ground

F1

GND

-

Ground

G18

GND

-

Ground

H19

GND

-

Ground

M1

GND

-

Ground

N2

GND

-

Ground

P1

GND

-

Ground

P3

GND

-

Ground

R2

GND

Ground

T2

GND

Ground

T18

GND

-

Ground

U1

GND

-

Ground

LE920 Hardware User Guide

1vv0301026 Rev.8 2015-01-03

PAD

Signal

I/O

Function

Type

COMMENT

V18

GND

-

Ground

W1

GND

-

Ground

X2

GND

-

Ground

X18

GND

-

Ground

Y1

GND

-

Ground

Y19

GND

Ground

AA2

GND

-

Ground

AB1

GND

-

Ground

AC2

GND

-

Ground

AE2

GND

-

Ground

AF1

GND

-

Ground

AG2

GND

-

Ground

AH1

GND

-

Ground

AJ2

GND

-

Ground

AK1

GND

-

Ground

AK17

GND

-

Ground

AL18

GND

-

Ground

AM17

GND

-

Ground

AM19

GND

-

Ground

AN16

GND

-

Ground

AN18

GND

-

Ground

AP3

GND

-

Ground

AP5

GND

-

Ground

AP7

GND

-

Ground

AP9

GND

-

Ground

AP11

GND

-

Ground

AP13

GND

-

Ground

AP15

GND

-

Ground

AR2

GND

-

Ground

AR4

GND

-

Ground

AR6

GND

-

Ground

AR8

GND

-

Ground

AR10

GND

-

Ground

AR12

GND

-

Ground

AR14

GND

-

Ground

AR16

GND

-

Ground

AS5

GND

-

Ground

AS7

GND

-

Ground

AS9

GND

-

Ground

AS11

GND

-

Ground

AS13

GND

-

Ground

LE920 Hardware User Guide

1vv0301026 Rev.8 2015-01-03

PAD

Signal

I/O

Function

Type

COMMENT

AS15

GND

-

Ground

AT4

GND

-

Ground

AT6

GND

-

Ground

AT8

GND

-

Ground

AT10

GND

-

Ground

AT12

GND

-

Ground

AT14

GND

-

Ground

AT16

GND

-

Ground

AU1

GND

-

Ground

AU5

GND

-

Ground

AU7

GND

-

Ground

AU11

GND

-

Ground

AU15

GND

-

Ground

Reserved

C12

Reserved

-

Reserved

A14

Reserved

-

Reserved

A16

Reserved

-

Reserved

M17

Reserved

-

Reserved

AN6

Reserved

-

Reserved

C14

Reserved

-

Reserved

D13

Reserved

-

Reserved

C16

Reserved

-

Reserved

D17

Reserved

-

Reserved

E16

Reserved

-

Reserved

C18

Reserved

-

Reserved

D15

Reserved

-

Reserved

F15

Reserved

-

Reserved

E4

Reserved

-

Reserved

F3

Reserved

-

Reserved

F5

Reserved

-

Reserved

G2

Reserved

-

Reserved

H1

Reserved

-

Reserved

H3

Reserved

-

Reserved

H17

Reserved

-

Reserved

J2

Reserved

-

Reserved

J18

Reserved

-

Reserved

K1

Reserved

-

Reserved

K3

Reserved

-

Reserved

K17

Reserved

-

Reserved

L2

Reserved

-

Reserved

L18

Reserved

-

Reserved

LE920 Hardware User Guide

1vv0301026 Rev.8 2015-01-03

PAD

Signal

I/O

Function

Type

COMMENT

M3

Reserved

-

Reserved

S3

Reserved

-

Reserved

S17

Reserved

-

Reserved

U3

Reserved

-

Reserved

W3

Reserved

-

Reserved

AL2

Reserved

-

Reserved

AM1

Reserved

-

Reserved

AN2

Reserved

-

Reserved

AN4

Reserved

-

Reserved

AN8

Reserved

-

Reserved

AN14

Reserved

-

Reserved

AS3

Reserved

-

Reserved

AT2

Reserved

-

Reserved

B19

Reserved

-

Reserved

AU13

Reserved

-

Reserved

E2

Reserved

-

Reserved

D1

Reserved

-

Reserved

C2

Reserved

-

Reserved

B1

Reserved

-

Reserved

LE920 Hardware User Guide

1vv0301026 Rev.8 2015-01-03

NOTE:

When the UART signals are used as the communication port between the Host and the Modem:

- DTR pin must be connected in order to enter LE920’s power saving mode.

- RI pin must be connected in order to wake the host when a call is coming during sleep

mode of host.

- RTS must be connected to GND (on the module side) if flow control is not used

In case UART port isn’t used, all UART signals may be left disconnected

NOTE:

E8 port – eSIM Reset signal is available for LE920-NA AUTO S model only. For other models, E8 is internally disconnected.

NOTE:

Unless otherwise specified, RESERVED pins must be left unconnected (Floating).

PAD

Signal

Notes

AP17,AP19,AR18,AS17,AS19,AT18,AU17,AU19

VBATT & VBATT_PA

A6,A12,B13,B15,B17,C4,C6,D3,D7,E18,F1,G18,H19, M1,N2,P1,P3,R2,T2,T18,U1,V18,W1,X2,X18,Y1,Y19, AA2,AB1,AC2,AE2,AF1,AG2,AH1,AJ2,AK1,AK17, AL18,AM17,AM19,AN16,AN18,AP3,AP5,AP7,AP9, AP11,AP13,AP15,AR2,AR4AR6,AR8,AR10,AR12, AR14,AR16,AS5,AS7,AS9,AS11,AS13,AS15,AT4, AT6,AT8,AT10,AT12,AT14,AT16,AU1,AU5,AU7, AU11,AU15

GND

AS1

ON/OFF*

AN12

SHDN_N

D19

USB_D+

If not used should be connected to a Test Point or an USB connector

F19

USB_D-

If not used should be connected to a Test Point or an USB connector

A18

USB_VBUS

If not used should be connected to a Test Point or an USB connector

AH19

C103/TXD

If not used should be connected to a Test Point

AF19

C104/RXD

If not used should be connected to a Test Point

AA18

C105/RTS

If the flow control is not used it should be connected to GND

AK19

C106/CTS

If not used should be connected to a Test Point

AB19

TXD_AUX

If not used should be connected to a Test Point

AD19

RXD_AUX

If not used should be connected to a Test Point

AD1

Antenna

AU9

ANT_DIV

S1

ANT_GPS

G2, J2, L2, F3, H3, K3, E4, AN14

Reserved

If not used should be connected to a Test Point

LE920 Hardware User Guide

1vv0301026 Rev.8 2015-01-03

The table below specifies the LE920A4 signals that must be connected even if not used by end application:

Telit Communications S p A LE920NA1 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual