Telit LE910Cx Service Manual

[0
Mod.08
HW Design Guide
1VV0301510 Rev. 12 – 2021-01-27
1.2017]
18 2017-01 Rev.0
LE910Cx mPCIe HW Design Guide
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 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.
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LE910Cx mPCIe HW Design Guide

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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LE910Cx mPCIe HW Design Guide
LE910C1-AP
LE910C1-ST
LE910C1-SV

APPLICABILITY TABLE

PRODUCTS
LE910C1-NS
LE910C1-NA
LE910C1-NF
LE910C4-NF
LE910C4-AP
LE910C1-EU
LE910C4-EU
LE910C1-EUX
LE910C1-SA
LE910C1-LA
LE910C4-LA
LE910C4-CN
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Contents

NOTICE 2
COPYRIGHTS .................................................................................................. 2
COMPUTER SOFTWARE COPYRIGHTS ....................................................... 2
USAGE AND DISCLOSURE RESTRICTIONS ................................................ 3
APPLICABILITY TABLE .................................................................................. 4
CONTENTS ...................................................................................................... 5
1. INTRODUCTION ............................................................................ 8
Scope ............................................................................................. 8
Audience ........................................................................................ 8
Contact Information, Support ......................................................... 8
Text Conventions ........................................................................... 9
Related Documents ...................................................................... 10
2. GENERAL PRODUCT DESCRIPTION ........................................ 11
Overview ...................................................................................... 11
Product Variants and Frequency Bands ....................................... 11
Target market ............................................................................... 12
Main features ................................................................................ 13
TX Output Power .......................................................................... 14
RX Sensitivity ............................................................................... 14
Mechanical specifications ............................................................. 17
2.7.1. Dimensions ................................................................................... 17
2.7.2. Weight .......................................................................................... 17
Temperature range ....................................................................... 18
3. PINS ALLOCATION .................................................................... 19
Pin-out .......................................................................................... 19
4. POWER SUPPLY ........................................................................ 23
Power Supply Requirements ........................................................ 28
Power Consumption ..................................................................... 28
General Design Rules .................................................................. 28
4.3.1. Electrical Design Guidelines ......................................................... 29
4.3.1.1. +5V Source Power Supply Design Guidelines ............................. 29
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4.3.1.2. +12V Source Power Supply Design Guidelines ........................... 29
4.3.2. Thermal Design Guidelines .......................................................... 30
4.3.3. Power Supply PCB layout Guidelines .......................................... 31
VAUX Power Output ..................................................................... 33
GNSS LNA BIAS .......................................................................... 34
5. ELECTRICAL SPECIFICATION .................................................. 35
Absolute Maximum Ratings – Not Operational ............................. 35
Recommended Operating Conditions .......................................... 35
6. DIGITAL SECTION ...................................................................... 36
Logic Levels ................................................................................. 36
Power On ..................................................................................... 38
Unconditional Restart ................................................................... 40
Power OFF procedure .................................................................. 43
Control signals .............................................................................. 45
6.5.1. WAKE_N ...................................................................................... 45
6.5.2. W_DISABLE_N ............................................................................ 47
6.5.3. LED_WWAN_N ............................................................................ 47
6.5.4. PERST_N ..................................................................................... 48
Hardware Interfaces ..................................................................... 48
6.6.1. USB Port ...................................................................................... 49
6.6.2. Serial Port ..................................................................................... 50
6.6.2.1. Modem Serial Port 1 Signals ........................................................ 50
6.6.2.2. RS232 Level Translation .............................................................. 51
6.6.3. I2C – Inter-integrated Circuit ........................................................ 53
6.6.4. Digital Audio ................................................................................. 53
SIM Interface ................................................................................ 54
7. RF SECTION ................................................................................ 56
Band Variants ............................................................................... 56
TX and RX characteristics ............................................................ 56
Antenna requirements .................................................................. 56
7.3.1. Antenna Connectors ..................................................................... 56
7.3.2. Main GSM/WCDMA/LTE Antenna Requirements ........................ 57
7.3.3. Antenna Diversity Requirements .................................................. 57
7.3.4. GNSS Antenna Requirements ..................................................... 58
7.3.4.1. Combined GNSS Antenna ........................................................... 59
7.3.4.2. Linear and Patch GNSS Antenna ................................................. 59
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8. MECHANICAL DESIGN............................................................... 60
Mechanical Dimensions ............................................................... 60
8.1.1. Mechanical Drawing (with SIM holder) ......................................... 60
8.1.1.1. Top View ...................................................................................... 60
8.1.1.2. Bottom View ................................................................................. 61
8.1.1.3. Side View ..................................................................................... 62
8.1.2. Mechanical Drawing (without SIM holder) .................................... 63
8.1.2.1. Top View ...................................................................................... 64
8.1.2.2. Bottom View ................................................................................. 64
8.1.2.3. Side View ..................................................................................... 66
9. APPLICATION PCB DESIGN ...................................................... 67
Recommended footprint for the application .................................. 67
10. EMC RECOMMENDATIONS ....................................................... 68
11. PACKAGING ............................................................................... 69
Tray .............................................................................................. 69
Tray Drawing ................................................................................ 71
Moisture sensitivity ....................................................................... 72
12. CONFORMITY ASSESSMENT ISSUES ..................................... 73
Declaration of Conformity ............................................................. 73
13. SAFETY RECOMMENDATIONS ................................................. 74
READ CAREFULLY ..................................................................... 74
14. REFERENCE TABLE OF RF BANDS CHARACTERISTICS ..... 75
15. ACRONYMS ................................................................................ 78
16. DOCUMENT HISTORY ................................................................ 80
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LE910Cx mPCIe HW Design Guide

1. INTRODUCTION

Scope

The aim of this document is the description of some hardware solutions useful for developing a product with the Telit xE910Cx Mini PCIe Adapter.

Audience

This document is intended for Telit customers, especially system integrators, about to implement their applications using the Telit xE910Cx Mini PCIe Adapter.

Contact Information, Support

For general contact, technical support services, technical questions and report documentation errors contact Telit Technical Support at:
TS-EMEA@telit.com
TS-AMERICAS@telit.com
TS-APAC@telit.com
TS-SRD@telit.com
Alternatively, use:
https://www.telit.com/support-training/
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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This information MUST be followed or catastrophic
Alerts the user to important points about

Text Conventions

Danger – equipment failure or bodily injury may occur.
Caution or Warning – 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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Related Documents

LE910Cx Hardware User Guide, 1VV0301298
LE920x4/LE910Cx AT Command User Guide, 80490ST10778A
Telit EVB User Guide, 1VV0301249
mPCIe IFBD HW USER GUIDE, 1VV0301483
LE910/LE920 Digital Voice Interface Application Note, 80000NT11246A
Event Monitor Application Note, 80000NT10028a
PCI Express Mini Card Electromechanical Specification, Revision 2.1
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2. GENERAL PRODUCT DESCRIPTION

Overview

The aim of this document is to present possible and recommended hardware solutions useful for developing a product with the Telit LE910Cx-mPCIe module.
LE910Cx-mPCIe is Telit platform for Mini PCIe applications, such as M2M applications, table PC, based on the following technologies:
LTE / WCDMA networks for data communication
Designed for industrial grade quality
In its most basic use case, LE910Cx-mPCIe can be applied as a wireless communication front-end for mobile products, offering mobile communication features to an external host CPU through its rich interfaces. LE910Cx-mPCIe can further support customer software applications and security features. LE910Cx-mPCIe provides a software application development environment with sufficient system resources for creating rich on-board applications. Thanks to a dedicated application processor and embedded security resources, product developers and manufacturers can create products that guarantee fraud prevention and tamper evidence without extra effort for additional security precautions. LE910Cx-mPCIe is available in hardware and band variants as listed in 2.2

Product Variants and Frequency Bands.

Product Variants and Frequency Bands
LE910Cx modules bands combinations are listed below:
Product 2G Band 3G Band 4G Band Region
LE910C1-NA 2, 3, 5, 8 1, 2, 4, 5, 8 2, 4, 12 North America
LE910C1-AP - 1, 5, 6, 8, 19
LE910C4-AP - 1, 5, 6, 8, 19
LE910C1-NS - -
LE910C4-NF - 2, 4, 5
1, 3, 5, 8, 9, 18, 19, 26, 28
1, 3, 5, 8, 9, 18, 19, 26, 28
2, 4, 5, 12, 25, 26
2, 4, 5, 12, 13, 14, 66, 71
Asia-Pacific
Asia-Pacific
North America
- Sprint
North America
LE910C1-NF - 2, 4, 5
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2, 4, 5, 12, 13, 14, 66, 71
North America
LE910Cx mPCIe HW Design Guide
Product 2G Band 3G Band 4G Band Region
LE910C1-EU 3, 8 1, 3, 8
LE910C4-EU 3, 8 1, 3, 8
LE910C4­EUX
3, 8 1, 3, 8
1, 3, 7, 8, 20, 28A
1, 3, 7, 8, 20, 28A
1, 3, 7, 8, 20, 28A
LE910C1-SA - - 2, 4, 12, 14, 66
LE910C1-ST - - 2, 4, 12, 66, 71
LE910C1-SV - - 4, 13
LE910C1-LA 2, 3, 5, 8 1, 2, 4, 5
1, 2, 3, 4, 5, 7, 28
Europe
Europe
Europe
North America – AT&T
North America – T-Mobile
North America
- Verizon
Latin America
LE910C4-LA 2, 3, 5, 8 1, 2, 4, 5
W: 1, 8
LE910C4-CN 3, 8
TDS: 34, 39
1, 2, 3, 4, 5, 7, 28
1, 3, 5, 8, 38, 39, 40, 41M
Latin America
China
Refer to Chapter Reference Table of RF Bands Characteristics 14 for details information about frequencies and bands.

Target market

LE910Cx-mPCIe can be used for wide variety applications, where low power consumption and low cost are required while sufficient data rates are achieved:
Mini PCIe applications
Notebook PC
M2M applications
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Application processor to run customer application code

Main features

Function Features
Modem
Digital audio subsystem
USIM ports – dual voltage
Multi-RAT cellular modem for voice and data communication
LTE FDD Catx data rates per the module variant used.
Carrier aggregation is not supported
GSM/GPRS/EDGE
WCDMA up to DC HSPA+, Rel.9
Regional variants with optimal choice of RF bands
coverage of countries and MNOs
State-of-the-art GNSS solution with
GPS/GLONASS/BeiDou/Galileo/QZSS receiver
PCM/I2S digital audio interface
Up to 48 kHz sample rate, 16 bit words
Class B and Class C support
Hot swap support
Clock rates up to 4 MHz
Application processor
32 bit ARM Cortex-A7 up to 1.3 GHz running the Linux operating system
Flash + DDR are large enough to allow for customer’s own software applications
Interfaces
USB2.0 – USB port is typically used for:
o Flashing of firmware and module configuration
o Production testing
o Accessing the Application Processor’s file system
o AT command access
o High-speed WWAN access to external host
o Diagnostic monitoring and debugging
o Communication between Java application environment and
an external host CPU
o NMEA data to an external host CPU
Peripheral Ports – SPI, I2C, UART
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GPIOs
Function Features
Antenna ports
Form factor Full-Mini Card 52 pin, 50.95mm x 30mm x 1mm
Environment and quality
The entire module is designed and qualified by Telit for satisfying the
environment and quality requirements.
requirements
Single supply
The module generates all its internal supply voltages.
module
RTC No dedicated RTC supply, RTC is supplied by VBATT

TX Output Power

Technology
2G LB 32.5
2G HB 29.5
3G/TD-SCDMA 23.5
Power (dBm)
4G FDD 22.5 @1RB

RX Sensitivity

Typical sensitivity levels are as follows:
Mode
Primary Diversity SIMO
PCS 1900 -107.0 - - -102
DCS 1800 -106.5 - - -102
GSM 850 -108.0 - - -102
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3GPP
LE910Cx mPCIe HW Design Guide
Mode
Primary Diversity SIMO
3GPP
EGSM 900 -107.0 - - -102
WCDMA 2100 – B1 -108.5 -109.5 -111.0 -106.7
WCDMA 1900 – B2 -109.0 -110.0 -111.5 -104.7
WCDMA 1800 – B3 -107.0 -109.0 -109.0 -103.7
WCDMA AWS – B4 -109.0 -109.5 -111.5 -106.7
WCDMA 850 – B5 -109.5 -110.5 -112.0 -104.7
WCDMA 850 – B6 -109.5 -110.5 -112.0 -106.7
WCDMA 850 – B19 -109.5 -110.5 -112.0 -106.7
WCDMA 900 – B8 -109.0 -110.0 -111.5 -103.7
TDS CDMA 2000 –
B34
TDS CDMA 1900 –
B39
-109.5 -
-109.5 -
-
-
-105
-105
LTE 2100 – B1 -97.5 -98.0 -100.0 -96.3
LTE 1900 – B2 -96.5 -98.5 -98.5 -94.3
LTE 1800 – B3 -97.0 -99.0 -99.0 -93.3
LTE AWS – B4 -97.5 -98.5 -100.0 -96.3
LTE 850 – B5 -98.5 -100.0 -101.0 -94.3
LTE 2600 – B7 -97.0 -97.0 -99.0 -94.3
LTE 900 – B8 -98.0 -99.0 -100.5 -93.3
LTE 1800 – B9 -97.5 -98.5 -100.0 -95.3
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Mode
Primary Diversity SIMO
3GPP
LTE 700a – B12 -98.0 -99.0 -100.5 -93.3
LTE 700c – B13 -98.0 -99.0 -100.5 -93.3
LTE 700PS – B14 -97.5 -99.0 -100.0 -93.3
LTE 700b – B18 -98.5 -99.5 -101.0 -96.3
LTE 800 – B19 -98.5 -99.0 -101.0 -96.3
LTE 800 – B20 -98.5 -98.5 -101.0 -93.3
LTE 1900+ – B25 -96.0 -98.0 -98.0 -92.8
LTE 850+ – B26 -98.5 -99.5 -101.0 -93.8
LTE 700 – B28A/B -98.0 -100.0 -101.0 -94.8
LTE AWS-3 – B66 -97.5 -98.5 -100.0 -95.8
LTE600 – B71 -97.5 -97.0 -100.0 -93.5
LTE TDD 2600 –
B38 -97.5 -98.0 -100.0
LTE TDD 1900 –
B39 -98.0 -99.0 -100.5
LTE TDD 2300 –
B40 -96.5 -98.0 -99.0
LTE TDD 2500 –
B41M -96.5 -97.5 -99.0
-96.3
-96.3
-96.3
-94.3
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NOTE – The sensitivity level has a deviation about +/- <2dB each
model, device and channel because the level shows typical value.
LTE level is measured at BW 10M.

Mechanical specifications

2.7.1. Dimensions

The overall dimensions of LE910Cx-mPCIe family are:
Length: 50.95 mm, +0/-0.3mm
Width: 30 mm, +0/-0.3mm
Thickness : 3.2 mm, +/-0.15mm (Version with SIM holder : 4.62 mm, +/-0.15mm)

2.7.2. Weight

The nominal weight of the module;
With SIM holder: 10.3 grams
Without SIM holder: 9.1 grams
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Temperature range
Case Range Note
–20°C ~ +55°C
The module is fully functional(*) in all the temperature range, and it fully meets the
3GPP specifications.
The module is fully functional (*) in all the
temperature range.
Operating

Temperature Range

However, there may be some performance
deviations in this extended range relative to 3GPP requirements, which means that
–40°C ~ +85°C
some RF parameters may deviate from the 3GPP specification in the order of a
few dB.
For example: receiver sensitivity or
maximum output power may be slightly
degraded
Storage and non-
operating
–40°C ~ +105°C
Temperature Range
(*) Functional: the module is able to make and receive voice calls, data calls, SMS and make data traffic.
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LE910Cx mPCIe HW Design Guide

3. PINS ALLOCATION

Pin-out

Pin Signal I/O Function Type Comment
Power Supply
2 3V3_AUX -
39 3V3_AUX - 3.3V Main Power
41 3V3_AUX - 3.3V Main Power
52 3V3_AUX - 3.3V Main Power
4 GND - Ground
9 GND - Ground
15 GND - Ground
18 GND - Ground
3.3V Main Power Supply
Supply
Supply
Supply
Power
Power
Power
Power
21 GND - Ground
26 GND - Ground
27 GND - Ground
29 GND - Ground
34 GND - Ground
35 GND - Ground
37 GND - Ground
40 GND - Ground
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Pin Signal I/O Function Type Comment
43 GND - Ground
50 GND - Ground
USB Interface
36 USB D- I/O USB differential
Data (-)
38 USB D+ I/O
USB differential
Data (+)
Digital Voice Interface (DVI)
45 PCM_CLK I/O Digital Audio
Interface (BIT Clock)
47 PCM_TX O
Digital Audio
Interface (TX Out of
the card)
49 PCM_RX I Digital Audio
Interface (RX Into
the card)
1.8V
1.8V
1.8V
51 PCM_SYNC I/O
Digital Audio
1.8V
Interface
(Frame_Sync)
16 REF_CLK O Reference clock for
1.8V
external Codec
SIM Card Interface
8 SIMVCC I/O External SIM signal
1.8 / 3V
– Power supply for
the SIM
10 SIMIO I/O External SIM signal -
1.8 / 3V
Data I/O
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Active low signal for
Supply output for
Pin Signal I/O Function Type Comment
12 SIMCLK O External SIM signal
– Clock
14 SIMRST O External SIM signal
– Reset
UART
3 UART_RX I
Serial data input
(RX) from DTE
5 UART_TX O Serial data output
(TX) to DTE
17 UART_RTS O Output Request To
Send signal (RTS) to
DTE
19 UART_CTS I Input for Clear To
Send signal (CTS)
from DTE
1.8 / 3V
1.8 / 3V
1.8V
1.8V
1.8V
1.8V
Miscellaneous Functions
1 WAKE_N O
20 W_DISABLE_N I
22 PERST_N I
28 VAUX_PWRMON O
Active low output
signal used to wake
up the system from
stand-by
wireless disabling
(Flight mode)
Active low functional
reset input to the
card
external accessories /
Power ON monitor
3.3V
3.3V
3.3V
1.8V
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Pin Signal I/O Function Type Comment
Active low, open
drain signal for
42 LED_WWAN_N O
WWAN LED driving,
used to provide
3.3V
module’s status
indication
30 I2C_SCL I/O I2C clock 1.8V
32 I2C_SDA I/O I2C Data 1.8V
Internally Pull Up
2.2kΩ to 1.8V
Internally PU 2.2kΩ to
Enables the external
48 GPS_LNA_EN O
regulator for GPS
1.8V
LNA
Reserved
6 Reserved -
7 Reserved -
11 Reserved -
13 Reserved -
1.8V
23 Reserved -
24 Reserved -
25 Reserved -
31 Reserved -
33 Reserved -
44 Reserved -
46 Reserved -
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WARNING
There are two different types of mPCIe modules; LE910Cx mPCIe V1 and LE910Cx mPCIe V2. Two types of mPCIe modules have the different pinout on PCM signals but rest of pins are exactly same.
mPCIe Pin-out mPCIe V1
47
49
PCM_RX
PCM_TX
mPCIe V2
PCM_TX
PCM_RX
LE910Cx mPCIe V2 was developed to provide the improved thermal performance with the large solder resist opening area on the bottom side of the module. For more detail, please refer to 80576DSW10190A LE910Cx mPCIe HW Release notes.
Warning – Reserved pins must be left floating.

Pin-out for the full compatibility with PCI Express miniCard specification.

Some pins of LE910Cx mPCIe are different from the pin-out defined by PCI Express miniCard specification to support various Telit’s own functions.
But there have been a need for the full compatibility with both PCI Express miniCard specification and old Telit’s xE910 mPCIe models. In order to meet this requirement, this model was developed.
Some pins of LE910Cx mPCIe which are different from PCI Express miniCard specification were changed to reserved. For more detail, please refer to the following Pin­out.
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LE910Cx mPCIe HW Design Guide
Pin Signal I/O Function Type Comment
Power Supply
2 3V3_AUX - 3.3V Main Power
Power
Supply
39 3V3_AUX - 3.3V Main Power
Power
Supply
41 3V3_AUX -
3.3V Main Power
Power
Supply
52 3V3_AUX - 3.3V Main Power
Power
Supply
4 GND - Ground
9 GND - Ground
15 GND - Ground
18 GND - Ground
21 GND - Ground
26 GND - Ground
27 GND - Ground
29 GND - Ground
34 GND - Ground
35 GND - Ground
37 GND - Ground
40 GND - Ground
43 GND - Ground
1VV0301510 Rev. 12 Page 24 of 82 2021-01-27
LE910Cx mPCIe HW Design Guide
Active low signal for
drain signal for
Pin Signal I/O Function Type Comment
50 GND - Ground
USB Interface
36 USB D- I/O USB differential
Data (-)
38 USB D+ I/O USB differential
Data (+)
SIM Card Interface
8 SIMVCC I/O External SIM signal
– Power supply for
the SIM
10 SIMIO I/O
External SIM signal -
Data I/O
12 SIMCLK O External SIM signal
– Clock
14 SIMRST O External SIM signal
– Reset
1.8 / 3V
1.8 / 3V
1.8 / 3V
1.8 / 3V
Miscellaneous Functions
1 WAKE_N O
20 W_DISABLE_N I
22 PERST_N I
42 LED_WWAN_N O
1VV0301510 Rev. 12 Page 25 of 82 2021-01-27
Active low output
signal used to wake
up the system from
stand-by
wireless disabling
(Flight mode)
Active low functional
reset input to the
card
Active low, open
3.3V
3.3V
3.3V
3.3V
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