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1. INTRODUCTION Scope The document covers the technical features of and design guideline for Telit LN940 WWAN M.2 Module. It also indicates application interface, hardware, software, reliability and mechanical specification. Audience This document is intended to review by engineering designers, and product managers.
This chapter provides an overview of standard features of Telit LN940 WWAN M.2 Module. M.2 Overview LN940 WWAN M.2 module is the next generation cellular LTE product, providing the connectivity on the world's fastest LTE networks in the extensive coverage of worldwide LTE bands, with unprecedented network performance.
Carrier Aggregation With the LTE-A carrier aggregation and high order modulation scheme Telit LN940 WWAN M.2 module is designed to run on the world’s fastest LTE networks. In the following tables there are seventy 2CC and sixty-four 3CC configurations shown in inter-band,and intra-band CA types in single duplex (FDD only) nd in hybrid duplex (FDD+TDD) modes.
Host Interface Signals Telit LN940 WWAN M.2 is the PCIe M.2 standard compliant 3042 Slot B module. The main function and basic requirement of 75 pins are introduced in the following table. Table 2.3-1 Host Interface Summary Signal Name Description...
3. WWAN M.2 INTERFACE DETAILS Interprocessor Communications (IPC) The LN940 WWAN M.2 Module provides two interfaces on the M.2 host interfaces that support Interprocessor Communications (IPC). 3.1.1. USB 2.0 High-Speed The USB controller is compliant to USB2.0 specification and with the Link Power Management (LPM).
3.1.2. USB 3.0 Super-Speed The USB controller of LN940 WWAN M.2 Module is also compliant with USB3.0 specification. It enables better transfer speed with improved bus use, duplex mode, than USB2.0. Table 3.1.2-1 USB 3.0 Interface Signal Name Voltage Description...
Logic 1 state and Logic 0 state. The falling edge shall indicate the removal of SIM card. c. This signal shall treat the rising or falling edge or actual logic state as an interrupt. Once triggered the LN940 WWAN M.2 module shall act accordingly.
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(4) The UIM_PWR shall be turn ON 2 seconds after the SIM_DETECT pin is asserted to High. This mechanism is to ensure the power is not turned ON before the SIM card is not seated well. Figure 3.2.1 USIM Design Recommendation...
System Control Interface The system control interface is used to control the power-up and reset of the WWAN M.2 Module. There are additional control signals to disable the radio, drive the LED as status indicator, an output to wake up the host and an input trigger for body SAR 3.3.1.
The design to the host is recommended as below, 3.3.2. Host Radio Disable Operation Two additional control signals are used to disable the radio on the module. The signal W_DISABLE#1 is allowed to disable the WWAN of and the signal W_DISABLE#2 is allowed to disable the GPS of LN940 M.2 Module in order to meet public safety regulations or when otherwise desired implementation of this signal is required for systems and all add-in card that implement frequency...
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Table 3.3.2 Host Radio Disable Interface Signal Name Voltage Description Level W_DISABLE#1 3.3V This is an “Active Low” pin to disable the WWAN radio of LN940 M.2 Module. When the state is “Low” the M.2 module radio can be disabled and made incapable of transmitting.
3.3.3. LED Interface – Status Indicator The LED signal is provided to enable add-in card to provide the RF status indications to users via system-provided indicators. Table 3.3.3 Status LED Interface Signal Name Voltage Description Level LED#1 (OD) 3.3V This is an “Active Low” output signal intended to drive system-mounted LED indicators.
3.3.4. Wake on WWAN Signal An output signal is available to wake the host platform, WAKE_WWAN#. This is an active, open drain output, requiring a pull-up resister on the host side. Table 3.3.4 Wake on WWAN Interface Signal Name Voltage Description Level Wake_WWAN#(OD)
In conjunction with the DPR signal a full power control tool is available to the host to adjust the RF transmit power level of LN940 WWAN M.2 Module. The DPR pin has 10Kohm pull-up resister on the LN940 WWAN M.2 Module.
Figure 3.3.5 DPR on host design recommendation Tunable Antenna Interface In the notebook platforms since the WWAN antennas are usually located on the top of the lid there is a long RF mini-coax cable that can be up to 60cm long between the antennas and the WWAN M.2 module.
Alternatively two MIPI signals are also available to configure the external antenna tuner. Table 3.4-1 Tunable Antenna MIPI Interface Signal Name Voltage Description Level MIPI_CLK 1.8V MIPI Clock MIPI_DATA 1.8V MIPI Data The SW tool is available configure the table of antenna tuner parameters. In-Device Coexistence Interface As more and more radios are added to notebook and tablet the source of RF interference increases significantly as multiple radios will have overlapping...
Power Supply Interface The WWAN M.2 Module requires the host to provide the 3.3V power source. The 3.3V power and ground pins are listed in Table Table 3.6 Power supply Interface Power Pins Description 2, 4, 70,72, 74 3.3V 3, 5, 11, 27, 33, 39, 45, 51, 57, 71, Ground Configuration Pins There are 4 Configuration pins on the WWAN M.2 Module to assist the host...
Antenna Interface The M.2 module has two antenna connectors to support a Tx/PRx antenna and a secondary antenna that will be multiplexed between the diversity receiver and GNSS receiver. The antenna signals are not available at the host interface but have their own connectors.
4. OPERTAING ENVIRONMENT Table 6 Recommended Operating Conditions Parameter Min. Typical Max. Storage Temperature -30 °C 25 °C 85 °C Recommended Operating Temperature -10 °C 25 °C 55 °C (3GPP Compliant) Restricted Operating Temperature (*1) -20 °C 25 °C 70 °C (Operational, non-3GPP Compliant) -40 °C 85 °C...
5. POWER DELIVERY REQUIREMENTS Electrical Parameters (3.3 V Power Supply) M.2 Module utilizes a single regulated power rail of 3.3V provided by the host platform. Parameter Min. Typical Max. Units Operating 3.135⃰ Voltage (*) The minimum voltage supplied to M.2 module by the host platform has to be 3.135 V.
Power Consumption < ALL data below is reference only, to be updated in July> USE Scenario Sample Test Targeted Value Targeted Value (Typical) (Max) WCDMA in Suspend mode <5mA WCDMA (Tx=24dBm) <800mA <1100mA LTE in Suspend mode <5mA LTE (16QAM) Tx=23 dBm <900mA <1200mA...
LN940 WWAN M.2 module by flexible RF coaxial cables. Type of two RF antenna receptacles of LN940 WWAN M.2 module is MHF – MAIN port is for primary transmitter and receiver and AUX port is for diversity receiver and GNSS.
LN940 WWAN M.2 Module Assembly Figure Stackup Mid-Line (In-Line) Single Sided Module (1) 2.4mm maximum above motherboard (2) Cut area of main board under M.2 module (3) Need to ad thermal pad between M.2 Module and mechanical component for thermal dissipation...
Antenna Connector Assembly (1) Mating the connector vertically as much as possible. Adjusting the mating axis of plug and receptable. Do NOT slant mate. (2) Unmating: In case of unmating by pulling gadget (see below). Pulling plug in vertical direction. (3) Pulling Gadget is shown below (Unit: mm)
8. SAFETY RECOMMENDATIONS READ CAREFULLY Be sure the use of this product is allowed in the country and in the environment required. The use of this product may be dangerous and has to be avoided in the following areas: Where it can interfere with other electronic devices in environments such as hospitals, airports, aircrafts, etc.
DOCUMENT HISTORY Revision Date Changes 2017-01-13 First issue (Preliminary) 2015-06-26 RF sensitivity updated, CA configurations updated...
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Federal Communication Commission Interference Statement This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
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antenna and users, and The transmitter module may not be co-located with any other transmitter or antenna. As long as 2 conditions above are met, further transmitter test will not be required. However, the OEM integrator is still responsible for testing their end-product for any additional compliance requirements required with this module installed IMPORTANT NOTE: In the event that these conditions can not be met (for...
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(2) ce dispositif doit accepter tout brouillage reç u, y compris un brouillage susceptible de provoquer un fonctionnement indé sirable. Radiation Exposure Statement: This equipment complies with ISED radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator &...
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the final product. In these circumstances, the OEM integrator will be responsible for re-evaluating the end product (including the transmitter) and obtaining a separate Canada authorization. NOTE IMPORTANTE: Dans le cas où ces conditions ne peuvent ê tre satisfaites (par exemple pour certaines configurations d'ordinateur portable ou de certaines co-localisation avec un autre é...
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