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ME910C1 mPCIe HW Design Guide

1VV0301642 Rev. 2

Page 19 of 56

2022-01-14

Not Subject to NDA

The area that the thermal pad is attached to on the application board must be designed
as a large ground pad (with the solder mask exposed).

Note: The average consumption during transmissions depends on
the input voltage and the power level at which the device is requested
to transmit by the network. The average current consumption hence
varies significantly.

4.3.3.

Power Supply PCB Layout Guidelines

Some ME910X1 versions have GSM capabilities. The GSM system is designed in such a
way that the RF transmission is not continuous, otherwise it is packed into bursts at a
base frequency of about 216 Hz, and the related current peaks can be as high as about
2.4A. The average current should be considered 1A. Therefore the power supply must be
designed in order to withstand with these current peaks and average without large
voltage drops; this means that both the electrical design and the board layout must be
designed for this current flow. If the voltage drop during the peak current absorption is
too high, the device may even shutdown due to the input supply voltage drop.

Note: The electrical design for the Power supply should be made so
that it is capable of a peak current output of at least 2.4 A.

As seen on the electrical design guidelines the power supply shall have a low ESR
capacitor on the output to help during the current peaks and protect the supply, especially
DC/DC, from positive and negative spikes. Negative spikes can demage the module. The
placement of this component is crucial for the correct functioning of the circuitry. A
misplaced component can be useless or can even decrease the power supply
performances.

•

The Bypass low ESR capacitor must be placed close to the Telit ME910X1-mPCIe
power input pads or in the case the power supply is a switching type it can be
placed close to the inductor to cut the ripple provided the PCB trace from the
capacitor to the ME910X1-mPCIE is wide enough to ensure a dropless connection
even during the 2A current peaks.

•

A protection diode must be placed close to the input connector where the power
source is drained.

•

The PCB traces from the input connector to the power regulator IC must be wide
enough to ensure that no voltage drops occurs when a 2A current peak is
absorbed.

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Содержание ME910X1

Страница 1: ...ME910X1 mPCIe HW Design Guide 1VV0301642 Rev 2 2022 01 14 Telit Technical Documentation ...

Страница 2: ...ME910C1 mPCIe HW Design Guide 1VV0301642 Rev 2 Page 2 of 56 2022 01 14 Not Subject to NDA APPLICABILITY TABLE PRODUCTS ME910C1 WW ME910G1 WW ...

Страница 3: ...ants and Frequency Bands 8 Target Market 9 Main Features 9 TX Output Power 10 RX Sensitivity 10 Mechanical Specifications 10 2 7 1 Dimensions 10 2 7 2 Weight 10 Temperature Range 10 3 PINS ALLOCATION 12 Pin out 12 4 POWER SUPPLY 15 Power Supply Requirements 15 Power Consumption 15 General Design Rules 16 4 3 1 Electrical Design Guidelines 16 4 3 2 Thermal Design Guidelines 18 4 3 3 Power Supply PC...

Страница 4: ...aces 30 6 6 1 USB Port 30 6 6 2 Serial Port 31 SIM Interface 34 7 RF SECTION 35 Bands Variants 35 TX and RX Characteristics 35 Antenna Requirements 35 7 3 1 Antenna Connectors 35 7 3 2 Main GSM LTE Antenna Requirements 36 7 3 3 GNSS Antenna Requirements 36 8 MECHANICAL DESIGN 38 Mechanical Dimensions 38 Mechanical Drawing 38 8 2 1 Top View 38 8 2 2 Bottom View 39 8 2 3 Side View 40 9 APPLICATION P...

Страница 5: ...NDS CHARACTERISTICS 48 14 PRODUCT AND SAFETY INFORMATION 50 Copyrights and Other Notices 50 14 1 1 Copyrights 50 14 1 2 Computer Software Copyrights 50 Usage and Disclosure Restrictions 51 14 2 1 License Agreements 51 14 2 2 Copyrighted Materials 51 14 2 3 High Risk Materials 51 14 2 4 Trademarks 51 14 2 5 Third Party Rights 52 14 2 6 Waiver of Liability 52 Safety Recommendations 52 15 GLOSSARY 54...

Страница 6: ...er mPCIe Audience This document is intended for system integrators that are using the Telit ME910X1 Mini PCIe Adapter in their products Contact Information Support For technical support and general questions please e mail TS EMEA telit com TS AMERICAS telit com TS APAC telit com TS SRD telit com Alternatively use https www telit com contact us Product information and technical documents are access...

Страница 7: ... suggestions that may be useful when integrating the module Electro static Discharge Notifies the user to take proper grounding precautions before handling the product All dates are in ISO 8601 format i e YYYY MM DD Related Documents 1 ME910C1 Hardware User Guide 1VV0301351 2 ME910C1 AT Command User Guide 80529ST10815A 3 mPCIe_IFBD_HW_USER_GUIDE 1VV0301483 4 PCI Express Mini Card Electromechanical...

Страница 8: ...0X1 mPCIe provides a software application development environment with sufficient system resources to create 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 ME910X1 mPCIe hardware...

Страница 9: ...ap support Clock rates up to 4 MHz Application processor Application processor to run customer application code Flash DDR are large enough to allow for customer s own software applications Interfaces USB2 0 USB port is typically used for Flashing of firmware and module configuration Production testing Accessing the Application Processor s file system AT command access High speed WWAN access to ext...

Страница 10: ... Thickness 3 2 mm 0 15mm Version with SIM holder 4 78 mm 0 15mm 2 7 2 Weight The nominal weight of the mPCIe card is about 7 grams Temperature Range Case Range Note Operating Temperature Range 20 C 55 C The module is fully functional in all the temperature range and it fully meets the 3GPP specifications 40 C 85 C The module is fully functional in all the temperature range However there may be som...

Страница 11: ...o NDA Case Range Note Storage and non operating Temperature Range 40 C 105 C Storage temperature is not intended for mPCIe in his transport tray wich cannot be heated over 65 C Table 5 Temperature range Note Functional the module is able to make and receive calls data connection and SMS ...

Страница 12: ... Power Supply Power 52 3V3_AUX 3 3V Main Power Supply Power 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 50 GND Ground USB Interface 36 USB D I O USB differential Data 38 USB D I O USB differential Data UART 3 UART_RX I Serial data input RX from DTE 1 8V See note 5...

Страница 13: ...dec 1 8V Reserved SIM Card Interface 8 SIMVCC I O External SIM signal SIM Power Supply 1 8 3V 10 SIMIO I O External SIM signal Data I O 1 8 3V 12 SIMCLK O External SIM signal Clock 1 8 3V 14 SIMRST O External SIM signal Reset 1 8 3V Miscellaneous Functions 1 WAKE_N O Active Low output signal Wake Up signal to the host system 3V3_AUX 6 1V5 O 1V5 Power Supply Power Not Used 20 W_DISABLE_N I Active L...

Страница 14: ...Reserved 33 Reserved 44 Reserved 46 Reserved Table 6 Pin out Warning Reserved pins must be left flowting Warning 3V3 and 1V5 Power Supply at Connector are not used in the board They can be left conneceted or not connected to any existing power Note UART pins are available only in following P N MEPCHC1WW05T080100 MEPCIC1WW04T070100 MEPCIC1WW05T100G00 MEPCIG1WW02T030400 MEPCIG1WW03T040400 MEPCHG1WW0...

Страница 15: ...uirements Note The Operating Voltage Range MUST never be exceeded care must be taken when designing the power supply section of the application to avoid having an excessive voltage drop If the voltage drop exceeds the limits it could cause a Power Off of the module The Overshoot voltage regarding to the MAX Extended Operating Voltage and drop in voltage regardingto the MIN Extended Operating Volta...

Страница 16: ...or the power supply is 3 3V Since there is not much difference between the input and the output voltage values and a linear regulator can be used When using a linear regulator a proper heat sink shall be necessary in order to dissipate the generated heat Since 5V is generally supplied directly from USB be careful not to have more than 10uF at input and that USB supplies an appropriate amount of cu...

Страница 17: ...smaller inductor size and its faster transient response This allows the regulator to respond quickly to the current peaks absorption In any case the frequency and Switching design selection is related to the application to be developed since the switching frequency could also generate EMC interferences For car PB battery the input voltage can rise up to 15 8V and this should be kept in mind when c...

Страница 18: ... disabled 2 mA Considering the very low current during Idle especially if the Power Saving function is enabled it is possible to consider from the thermal point of view that the device absorbs a significant current mainly during the Data session In LTE mode the ME910X1 mPCIe emits RF signals continuously during transmission Therefore special attention must be paid to how to dissipate the heat gene...

Страница 19: ...eak current absorption is too high the device may even shutdown due to the input supply voltage drop Note The electrical design for the Power supply should be made so that it is capable of a peak current output of at least 2 4 A As seen on the electrical design guidelines the power supply shall have a low ESR capacitor on the output to help during the current peaks and protect the supply especiall...

Страница 20: ...nected to the common system ground plane in inner layer can help to reduce noise distribution and consequent spurious generation The placement of the power supply on the board should be done in such a way as to guarantee that the high current return paths in the ground plane are not overlapped to any noise sensitive circuitry as the microphone amplifier buffer or earphone amplifier The power suppl...

Страница 21: ...dule Symbol Parameter Min Max Unit 3V3_AUX Main Supply Voltage at pins 3V3_AUX 0 5 4 2 V Table 8 Absolute Maximum Ratings Not Operational Recommended Operating Conditions Symbol Parameter Min Typ Max Unit Tamb Ambient temperature 40 25 85 C 3V3_AUX Main Supply Voltage at pins 3V3_AUX 3 0 3 3 3 6 V I3V3_AUX Peak current to be used to dimension decoupling capacitors at pins 3V3_AUX 2400 mA Table 9 R...

Страница 22: ... 85V Input Low Voltage 0V 0 6V Output High Voltage 1 4V 1 8V Output Low Voltage 0V 0 45V Pull Up Resistance 10kΩ 390kΩ Pull Down Resistance 10kΩ 390kΩ Input Capacitance 5pF Input Leakage Current 1uA 1uA Drive Strength 2mA 3mA Table 12 Operating range digital signals CMOS 1 8V Parameter Min Max Input High Voltage on digital signals CMOS 1 8 with respect to ground when 3V3_AUX is supplied 0 3V 2 1V ...

Страница 23: ...ance 10kΩ 100kΩ Input Capacitance 5pF Table 13 Operating Range SIM Card Pads Power On The ME910X1 mPCIe will automatically Power ON as soon as VBATT applies to the module and W_DISABLE_N and PERST_N are HI The module is ready for use after HW power Up and SW initialization process completes For this reason it is impossible to access ME910X1 PCIe during the initialization state As shown below the M...

Страница 24: ...the ME910X1 mPCIe module give the 3V3_AUX and release both the PERST_N and W_DISABLE_N pins they must not be asserted Low The following flow chart shows the proper MODEM TURN ON procedure Figure 5 MODEM TURN ON procedure Modem TURN ON POWER ON Delay 5s END Modem START AT CMD W_DISABLE_N HIGH and PERST_N HIGH ...

Страница 25: ...nconditional hardware restart must always be implemented on the application board as the software must be able to use it as an emergency exit procedure The hardware unconditional restart must not be used during normal operation of the device since it does not detach the device from the network It should be kept as an emergency exit procedure to be performed in the rare case that the device gets st...

Страница 26: ...w unconditional shutdown I 22 Table 14 W_DISABLE_N and PERST_N Warning The W_DISABLE and PERST_N signals are hardware unconditional SHUTDOWN and should not be used during normal device shutdown operation as it does not detach the device from the network and can harm the memory content It shall be kept as an emergency exit procedure To use W_DISABLE_N and PERST_N as Unconditional Hardware Shutdown ...

Страница 27: ...022 01 14 Not Subject to NDA The following flow chart shows the proper MODEM RESTART procedure Figure 7 Modem RESTART AT SYSHALT Delay 15s END Delay 200ms Delay 5s Modem START AT CMD Modem START AT CMD W_DISABLE_N LOW or PERST_N LOW W_DISABLE HIGH and PERST_N HIGH ...

Страница 28: ...ization state can differ according to the current status of the module so a fix value cannot be defined Figure 8 Shutdown using AT SYSHALT Command Warning The W_DISABLE and PERST_N signals are hardware unconditional SHUTDOWN and must not be used during normal shutdown operation of the device since it does not detach the device from the network and can harm the memory content It shall be kept as an...

Страница 29: ...ol signal operating levels 6 5 1 W_DISABLE_N and PERST_N W_DISABLE_N and PERST_N are both used for unconditionally shutdown the mPCIe Whenever one of these signals is pulled low the module shutdowns After releasing both signals the module restarts The module has already an internal Power On Reset control and do not need other external componets Note Do not use W_DISABLE_N and PERST_N to power cycl...

Страница 30: ...full speed hosts 12 Mbits sec It is compliant with the USB 2 0 specification and can be used for control and data transfers as well as for diagnostic monitoring and firmware update The USB port is typically the main interface between the ME910X1 mPCIe module and OEM hardware Table Below lists the USB interface signals Signal Pin No Usage USB_D 36 Minus line of the differential bi directional USB s...

Страница 31: ... or Power cycling any external signals should be floating to avoid module s latchup and damage When mPCIe UART is directly connetd to a PC an RS232 translator is necessary see more details in 6 6 2 1 RS232 Level Translator The levels for the UART are CMOS 1 8V as described in 6 1 Logic Levels List of the signal interconnections between RS232 and UART in the ME910X1 mPCIe RS232 Pin No Signal mPCIe ...

Страница 32: ... voltage multiplying ratio on the level translator Note that the negative signal voltage must be less than 0V and therefore some sort of level translation is always required The simplest way to translate the levels and invert the signal is by using a single chip level translator There are a multitude of them differing in the number of drivers and receivers and in the levels be sure to get a true R...

Страница 33: ... case of high speed access higher than 1Mbps the lines should be designed carefully to avoid signal degradation and noise generation The RS232 serial port lines are usually connected to a DB9 connector as shown in a Figure below Signal names and directions are named and defined from the DTE point of view RS232 Serial Port Lines Connection Layout Figure 10 RS232 DB 9 pinout ...

Страница 34: ...lly grounded In this mPCIE variants onboard SIM holder and eSIM are not mounted Figure 11 SIM Interface Table 20 SIM Interface signals Pin Signal I O Function Type 8 SIMVCC O External SIM signal Power supply for the SIM 1 8 3V 10 SIMIO I O External SIM signal Data I O 1 8 3V 12 SIMCLK O External SIM signal Clock 1 8 3V 14 SIMRST O External SIM signal Reset 1 8 3V C1 Not mounted R1 14 12 SIMCLK SIM...

Страница 35: ...ee the picture on the right for their position on the interface The presence of all the connectors is depending on the product characteristics and supported functionalities For more information about mating connectors search fo RF U FL female cable up to 3GHz For example the U FL LP xxx from Hirose https www hirose com Figure 12 U FL Antenna Connectors The antenna connection is one of the most imp...

Страница 36: ...ally In case of GNSS active antenna It is recommended to follow An external active antenna 17dB typ Gain GPS only An external active antenna plus GNSS pre filter 17dB typ Gain Note The external GNSS pre filter is required for the GLONASS application The GNSS pre filter must meet the following requirements Source and load impedance 50 Ohm Insertion loss 1575 42 1576 42 MHz 1 4 dB Max Item Value Fre...

Страница 37: ...ecommended This solution can generate an extremely poor GNSS reception Furthermore the combination of antennas requires an additional diplexer which adds significant power loss in the RF path Linear and Patch GNSS Antenna Using this type of antenna introduces at least 3 dB of loss compared to a circularly polarized CP antenna Having a spherical gain response instead of a hemispherical gain respons...

Страница 38: ...SIGN Mechanical Dimensions The ME910X1 mPCIe overall dimensions are Length 50 95 mm Width 30 mm Thickness 3 2 mm Version with SIM holder 4 78 mm Weight 7 gr Mechanical Drawing 8 2 1 Top View The figure below shows mechanical top view of the ME910X1 mPCIe dimension are in mm Figure 13 ME910X1 mPCIe Top View ...

Страница 39: ... of 56 2022 01 14 Not Subject to NDA 8 2 2 Bottom View The figure below shows mechanical top view of the ME910X1 mPCIe dimension are in mm The figure shows the eSIM and SIM holder although by default they are not mounted Figure 14 ME910X1 mPCIe Bottom View ...

Страница 40: ...e HW Design Guide 1VV0301642 Rev 2 Page 40 of 56 2022 01 14 Not Subject to NDA 8 2 3 Side View The figure below shows mechanical side view of the ME910X1 mPCIe dimension are in mm Figure 15 ME910X1 mPCIe Side View ...

Страница 41: ...andard lead free SMT process Recommended Footprint for the Application ME910X1 mPCIe modules fits any full mPCIe 52 pin socket and latch connectors compliant with PCI Express Mini Card Electromechanical Specification Revision 2 1 Given below example of board connector MM60 52B1 E1 R650 JAE and latch MM60 EZH059 B5 R650 JAE footprint for reference only Figure 16 ME910X1 mPCIe Footprint Reference ...

Страница 42: ...me EMC protection However the accepted level differs according to the specific pin EMC Recommendations Table 22 EMC Recommendations Appropriate series resistors must be considered to protect the input lines from overvoltage Pad Signal I O Function HBM CDM All Pins All pins All functions 2KV 500V Antenna Antenna connectors Analog I O Antenna connectors 2KV 500V ...

Страница 43: ...e ME910X1 mPCIe modules are packaged on trays of 20 pieces each Table 23 Tray Packing Order Type Quantity Minimum Order Quantity MOQ 20 Standard Packing Quantity SPQ 500 Table 24 Packing Quantities Modules per Tray Trays per Envelope Modules per Envelope Envelopes per Carton Box Modules per Box 20 5 1 empty 100 5 500 ...

Страница 44: ...ME910C1 mPCIe HW Design Guide 1VV0301642 Rev 2 Page 44 of 56 2022 01 14 Not Subject to NDA Tray organization is shown in the figure below Figure 17 ME910X1 mPCIe Tray organization ...

Страница 45: ...ME910C1 mPCIe HW Design Guide 1VV0301642 Rev 2 Page 45 of 56 2022 01 14 Not Subject to NDA Tray Drawing Figure 18 ME910X1 mPCIe Tray Drawing Warning These trays can withstand a maximum temperature of 65 ...

Страница 46: ...e care of the following conditions a Calculated shelf life in sealed bag 12 months at 40 C and 90 relative humidity RH b Environmental condition during the production 30 C 60 RH according to IPC JEDEC J STD 033A paragraph 5 c The maximum time between the opening of the sealed bag and the reflow process must be 168 hours if condition b IPC JEDEC J STD 033A paragraph 5 2 is respected d Baking is req...

Страница 47: ...DA 12 CONFORMITY ASSESSMENT ISSUES Declaration of Conformity Hereby Telit Communications S p A declares that the ME910C1 mPCIe is in compliance with Directive 2014 53 EU The full text of the EU declaration of conformity is available at the following internet address https www telit com red ...

Страница 48: ...MHz LTE 850 B5 824 849 869 894 Tx 20400 20649 Rx 2400 2649 45 MHz LTE 2600 B7 2500 2570 2620 2690 Tx 20750 21449 Rx 2750 3449 120 MHz LTE 900 B8 880 915 925 960 Tx 21450 21799 Rx 3450 3799 45 MHz LTE 1800 B9 1749 9 1784 9 1844 9 1879 9 Tx 21800 2149 Rx 3800 4149 95 MHz LTE AWS B10 1710 1770 2110 2170 Tx 22150 22749 Rx 4150 4749 400 MHz LTE 700a B12 699 716 729 746 Tx 23010 23179 Rx 5010 5179 30 MH...

Страница 49: ...27210 27659 Rx 9210 9659 55 MHz LTE AWS 3 B66 1710 1780 2210 2200 Tx 131972 132671 Rx 66436 67335 400 MHz LTE600 B71 663 698 617 652 Tx 133122 133471 Rx 68568 68935 46 MHz LTE TDD 2600 B38 2570 2620 2570 2620 Tx 37750 38250 Rx 37750 38250 0 MHz LTE TDD 1900 B39 1880 1920 1880 1920 Tx 38250 38650 Rx 38250 38650 0 MHz LTE TDD 2300 B40 2300 2400 2300 2400 Tx 38650 39650 Rx 38650 39650 0 MHz LTE TDD 2...

Страница 50: ...announce such Telit products programming or services in your country 14 1 1 Copyrights This instruction manual and the Telit products described herein may include or describe Telit copyrighted material such as computer programs stored in semiconductor memories or other media The laws in Italy and in other countries reserve to Telit and its licensors certain exclusive rights for copyrighted materia...

Страница 51: ...usively in accordance with the terms of such agreement 14 2 2 Copyrighted Materials The Software and the documentation are copyrighted materials Making unauthorized copies is prohibited by the law The software or the documentation shall not be reproduced transmitted transcribed even partially nor stored in a retrieval system nor translated into any language or computer language in any form or by a...

Страница 52: ...MITATION LOST OF 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 CODES 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 14 2 6 Waiver of Liability IN NO EVENT WILL TELIT AND IT...

Страница 53: ... system integrator is responsible for the functioning of the final product Therefore the external components of the module as well as any project or installation issue have to be handled with care Any interference may cause the risk of disturbing the GSM network or external devices or having an impact on the security system Should there be any doubt please refer to the technical documentation and ...

Страница 54: ...acket Access HSIC High Speed Inter Chip HSUPA High Speed Uplink Packet Access I O Input Output MISO Master Input Slave Output MOSI Master Output Slave Input mPCIe Mini PCIe Adapter MRDY Master Ready PCB Printed Circuit Board RED Radio Equipment Directive RTC Real Time Clock SIM Subscriber Identification Module SPI Serial Peripheral Interface SRDY Slave Ready TTSC Telit Technical Support Centre UAR...

Страница 55: ...Rev 2 Page 55 of 56 2022 01 14 Not Subject to NDA 16 DOCUMENT HISTORY Revision Date Changes 2 2022 01 14 Minor changes on the languagand updated to the new template Legal Notices updated 1 2020 02 11 Document revision 0 2019 12 17 First issue ...

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