Telit Wireless Solutions LN940 WWAN M.2 User Manual

LN940 WWAN M.2

Engineering User Guide

Rev. 1.0 – 2017-06-23

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APPLICABILITY TABLE

PRODUCTS

LN940A11
LN940A9

Contents

NOTICE 2

COPYRIGHTS ................................................................................................ 2

COMPUTER SOFTWARE COPYRIGHTS ...................................................... 2

USAGE AND DISCLOSURE RESTRICTIONS ............................................... 3

APPLICABILITY TABLE ................................................................................ 5

CONTENTS .................................................................................................... 7

1. INTRODUCTION........................................................................... 9

Scope ............................................................................................ 9

Audience ....................................................................................... 9

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

2. OVERVIEW ................................................................................. 10

M.2 Overview .............................................................................. 10

2.1.1. General Features ........................................................................ 10

2.1.2. Carrier Aggregation ..................................................................... 14

M.2 WWAN Module – System Block Diagram ............................. 16

Host Interface Signals ................................................................. 17

3. WWAN M.2 INTERFACE DETAILS ............................................ 22

Interprocessor Communications (IPC) ......................................... 22

3.1.1. USB 2.0 High-Speed ................................................................... 22

3.1.2. USB 3.0 Super-Speed ................................................................. 23

USIM Interface ............................................................................ 24

3.2.1. SIM Design Recommendations ................................................... 24

System Control Interface ............................................................. 26

3.3.1. Power On & Reset ...................................................................... 26

3.3.2. Host Radio Disable Operation ..................................................... 27

3.3.3. LED Interface – Status Indicator .................................................. 29

3.3.4. Wake on WWAN Signal .............................................................. 30

3.3.5. Dynamic Power Reduction .......................................................... 31

Tunable Antenna Interface .......................................................... 32

In-Device Coexistence Interface .................................................. 33

Power Supply Interface ............................................................... 34

Configuration Pins ....................................................................... 34

Antenna Interface ........................................................................ 35

4. OPERTAING ENVIRONMENT .................................................... 36

5. POWER DELIVERY REQUIREMENTS ...................................... 37

Electrical Parameters (3.3 V Power Supply) ................................ 37

Power Consumption .................................................................... 38

6. OTHER REQUIREMENTS .......................................................... 39

Conducted Transmit Power ......................................................... 39

Receiver Sensitivity ..................................................................... 39

Antenna Recommendations ........................................................ 41

GNSS Sensitivity ......................................................................... 42

7. WWAN CARD TYPE 3042 .......................................................... 43

Mechanical Dimension ................................................................ 43

LN940 WWAN M.2 Module Assembly ......................................... 44

Antenna Connector Assembly ..................................................... 45

Antenna Connector Locations ..................................................... 46

8. SAFETY RECOMMENDATIONS ................................................ 48

READ CAREFULLY .................................................................... 48

9. ACRONYMS ............................................................................... 49

10. DOCUMENT HISTORY............................................................... 51

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.

Contact Information, Support

For general contact, technical support services, technical questions and report
documentation errors contact Telit Technical Support at:

 [e-mail]
 [e-mail]
 [e-mail]
 [e-mail]

Alternatively, use:

http://www.telit.com/support

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

http://www.telit.com

Our aim is to make this guide as helpful as possible. Keep us informed of your
comments and suggestions for improvements.

Telit appreciates feedback from the users of our information.

2. OVERVIEW

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.

The WWAN M.2 module is in compliance of 3GPP releases 9, 10, 11, and 12,
in which the part of LTE advance carrier aggregation (2x and 3x in the
downlink) and high order modulation (up to 256 QAM) are supported.

2.1.1. General Features

Table 2.1.1-1 LN940 Feature Summary

Feature

Modem Chipset Qualcomm MDM9240

Carrier Aggregation 2CC & 3CC DL CA Up to inter-band 3CC

LTE Category Cat6/Cat9 and up to

Physical PCI Express M.2 Module

Mechanical M2. Card Type 3042

Weight 6 grams

Description

Cat11 @60Mhz

Slot B
Pin counts : 75

Additional

Information

DL CA

30mm x 42mm x

2.3mm

Max Height=2.38mm

(0.08mm PCB

tolerance added)

Operating Voltage 3.135V ~ 4.4V; Single

Operating

Temperature

VCC Supply

-40°C to +85 °C

Please refer to details

in Chapter 7

USIM Off-board USIM

connector Supported

RX Diversity

GNSS

Data Service

ALL LTE and UMTS
Bands Supported

GPS: L1
(1575.42MHz)

GLONASS: L1
(1602MHz)

Beidou
(1561.098MHz)

LTE CAT 11:
600Mbps DL/50Mbps

UL

LTE CAT 9:
450Mbps DL/50 Mbps

UL

LTE CAT 6:
300Mbps DL/50Mbps

UL

DC-HSPA+:
42Mbps DL/5.76Mbps

UL
HSPA+:
21Mbps DL/5.76Mbps

UL

WCDMA PS
384Kbps DL/384Kbps

UL

WCDMA CS
64Kbps DL/64Kbps UL

There are 22 LTE and 7 UMTS bands supported by Telit LN940 WWAN M.2
Module.

Table 2.1.1 -2 Supported LN940 LTE Bands

E-UTRA

BAND

Frequency

(Mhz)

Uplink

Frequency

UE Receive

(Mhz)

Downlink

Frequency

UE Receive

(Mhz)

1 2100 1920-1980 2110-2170 FDD

2 1900 1850-1910 1930-1990 FDD

3 1800 1710-1785 1805-1880 FDD

4 1700 1710-1755 2110-2155 FDD

5 850 824-849 869-894 FDD

7 2600 2500-2570 2620-2690 FDD

8 900 880-915 925-960 FDD

Duplex

Mode

12 700 699-716 729-746 FDD

13 700 777-787 746-756 FDD

17 700 704-716 734-746 FDD

18 850 815-830 860-875 FDD

19 850 830-845 875-890 FDD

20 800 832-862

21 1500 1477.9-

1462.9

791 – 821

1495.9-

1510.9

FDD

FDD

25 1900 1850-1915 1930-1995 FDD

26 850 814-849 859-894 FDD

28 700 703-748 758-803 FDD

29 700 N/A 717-728 FDD

30 2300 2305-2315 2350-2360 FDD

38 2600 2570-2620 TDD

39 1900 1880-1920 TDD

40 2300 2300-2400 TDD

41 2500 2496-2690 TDD

66 1700 1710-1780 2110-2200 FDD

Table 2.1.1 -2 Supported LN940 UMTS Bands

UTRA

BAND

Frequency

(Mhz)

Uplink

Frequency

UE Receive

(Mhz)

Downlink

Frequency

UE Receive

(Mhz)

1 2100 1920-1980 2110-2170 FDD

2 1900 1850-1910 1930-1990 FDD

4 1700 1710-1755 2110-2155 FDD

5 850 824-849 869-894 FDD

6 800 830-840 875-885 FDD

Duplex

Mode

8 900 880-915 925-960 FDD

19 850 830-845 875-890 FDD

2.1.2. 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.

Table 2.1.2-1 Two Carrier Component Carrier Aggregation

Configurations (Downlink)

Region

North America AT&T, VZW,

Carrier

Sprint, TMO

2CC DL CA Combinations

B2+ B2, B2+ B4, B2 + B5, B2+
B12, B2 + B13, B2 +B17, B2 + B29,
B2 + B30, B4+ B4, B4 + B5, B4
+ B7, B4+B12, B4 + B13, B4 +
B17,B4+ B29, B4 + B30, B5+B30,
B12 + B12, B12 + B30, B25
+ B25, B25 + B26, B25+B41, B26 +
B41, B29+B30, B41+B41, B2+B66,
B5+B66, B12+B66, B13+B66,
B66+B66, B29+B66, B30+B66

Korea SKT, KT, LGU+ B1+B5, B1+B3, B1+B7, B3+B5,

B3+B8, B5+ B7, B3+B7, B7+B7

Japan KDDI, Docomo,

Softbank

B1+B3, B1+B8, B1+B18, B1+B19,
B1+B26, B3+B19, B19+B21,
B41+B41

EU Various B1+B20, B3+B3, B3+B7, B3+ B20,

B3+ B38, B7+B7, B7+B8, B7+B20,
B38+B38

China CMCC, CTCC,

CUCC

Australia/SEA/LA Telstra, Optus B1+B3, B1+ B7, B1 + B28, B3+ B8,

B1+B3, B1+B26, B3+B26, B3+B40,
B39+B39, B39+B41, B40+B40,
B41+B41

B3 + B28, B5 + B7, B5+ B40, B7 +
B8, B7 +B28

Table 2.1.2-1 Three Carrier Component Carrier Aggregation

Configurations

Region

Carrier

North America AT&T, VZW,

Sprint, TMO

Korea SKT, KT,

LGU+

Japan KDDI,

Docomo,
Softbank

3CC DL CA Combinations

B2+ B2+ B2, B2 + B2 + B12, B2
+B2+B13, B2+B4+B4, B2+B4+B5,
B2+B4 +B12, B2+B4+B13, B2+ B4 +
B29, B2+ B5+B30, B2+B12+B12,
B2+B12+ B30, B2+B29+B30,
B4+B4+B5, B4+B4+B7,
B4+B4+B12, B4+B4 +B13, B4+ B5 +
B30, B4+B12+B12, B4+B12+B30,
B4+B29+ B30, B25+B26+B41,
B25+B41+B41, B26+B41+B41,
B41+B41+B41, B13+B66+B2,
B12+B66+B66, B13+B66+B66,
B5+B66+B2, B5+B66+B66,
B66+B66+B2, B66+B66+B66

B1+B3+B5, B1+B7+B7, B1+B3+B8,
B1+B5+B7, B3+B5+B7,B1+B7+B28,
B3+B7+B8, B3+B7+B7, B5+B7+B7

B1+B3+B19, B1+B3+B28,
B1+B41+B41, B41+B41+B41

EU Various B1+B3+B20, B1+B7+B20, B3+B3+

China CMCC, CTCC,

CUCC

Australia/SEA/LA Telstra, Optus B3+B3+B5, B3+B3+B8, B3+B7+B7,

B7, B3+B3+B20, B3+B7+B20,
B3+B7+B7,
B3+B20+B38,B3+B38+B38

B1+B3+B3, B1+B3+B26,
B1+B3+B41, B3+B40+B40,
B39+B39+B41, B39+B41+B41,
B40+B40+B40, B41+B41+B41

B3+B7+B28, B7+B7+B28,
B3+B40+B40, B28+B40+B40,
B40+B40+B40

M.2 WWAN Module – System Block Diagram

Figure 2.2-1 System Block Diagram

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

Pin Signal Name I/O Description Supply

1 CONFIG_3 O

2 Power Supply I 3.3V

3 GND

4 Power Supply I 3.3V

5 GND

6 FULL_CARD_POWER_OFF#

I 1.8V/3.3V

7 USB_D+ IO

8 W_DISABLE1# I 3.3V

9 USB_D- IO

10 LED# O Open Drain,

Active

Low@40mA,

indicating LED

ON

11 GND

12 SLOT KEY

13 SLOT KEY

14 SLOT KEY

15 SLOT KEY

16 SLOT KEY

17 SLOT KEY

18 SLOT KEY

19 SLOT KEY

20 GPIO_5 AUDIO_0 IO 1.8V

21 CONFIG_0 O

22 GPIO_6 AUDIO_1 IO 1.8V

23 GPIO_3 WoWWAN# O 1.8V

24 GPIO_7 AUDIO_2 IO 1.8V

25 Dynamic Power Reduction I 3.3V

26 W_DISABLE2# I 3.3V

27 GND Pin

28 GPIO_8 AUDIO_3 IO 1.8V

29 USB 3.0 TX- O

30 UIM_Reset O

31 USB 3.0 TX+ O

32 UIM_CLK O

33 GND Pin

34 UIM_DATA IO

35 USB 3.0 RX- I

36 UIM_PWR Pout

37 USB 3.0 RX+ I

38 Not Connected

39 GND Pin

40 GNSS_SCL I/O Reserved

41 PETn0 Reserved,

Disabled by

Default

42 GPIO_1 GNSS_SDA Reserved

43 PETp0 Reserved,

Disabled by

Default

44 GPIO_2 GNSS_IRQ Reserved

45 GND

46 GPIO_3 SYSCLK Reserved

47 PERn0 Reserved,

Disabled by

Default

48 GPIO_4 TX_BLANKING

49 PERp0 Reserved,

Disabled by

Default

50 PERST# Reserved,

Disabled by

Default

51 GND

52 CLKREQ# Reserved,

Disabled by

Default

53 REFCLKN Reserved,

Disabled by

Default

54 PEWAKE# Reserved,

Disabled by

Default

55 REFCLKP Reserved,

Disabled by

Default

56 MIPI_CLK

57 GND

58 MIPI_DATA

59 ANTCTL0 O

60 COEX3 IO

61 ANTCTL1 O

62 COEX_RXD I

63 ANTCTL2 O

64 COEX_TXD O

65 ANTCTL3 O

66 SIM_DETECT I

67 RESET# I

68 Not Connected

69 CONFIG_1

70 Power Supply Pin 3.3V

71 GND

72 Power Supply Pin

73 GND

74 Power Supply Pin

75 CONFIG_2

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). LPM introduces the sleep state (L1) which
significantly reduces the transitional latencies between the defined power
states.

Table 3.1.1-1 USB 2.0 Interface

Signal Name Pin Voltage

Level

USB_D+ 7 Per USB2.0

Specification

USB_D- 9 USB Data Minus

Description

USB Data Pus

3.1.2. USB 3.0 Super-Speed

WWAN M.2 Module

Host

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 Pin Voltage

Description

Level

USB_D+ 7 Per USB3.0

USB Data Plus

Specification

USB_D- 9 USB Data Minus

USB3.0-Tx- 29 USB 3.0 Transmit Minus

USB3.0-Tx+ 31 USB 3.0 Transmit Plus

USB3.0-Rx- 35 USB 3.0 Receive Minus

USB3.0-Rx+ 37 USB 3.0 Receive Plus

When two are connected host is chosen to initiate and to control traffic on the
USB bus.

USIM Interface

The USIM interface is fully compliant to the ISO/IEC 7816-3 specification

The USIM contains parameters necessary for the operation of WWAN radio
environment.

Table 3.2-1 USB 3.0 USIM Interface

Signal Name Pin Voltage

Description

Level

UIM_RESET 30 1.8V UIM Reset signal

UIM_CLK 32 1.8V UIM Clock signal

UIM_DATA 34 1.8V/2.85V UIM Data signal

UIM_PWR 36 1.8V/2.85V Power source for UIM

SIM_DETECT 66 1.8V This is an indication to the

modem to detect the SIM
insertion/removal. It is
usually connected to the
SIM reader SW pin and is
card type dependent

3.2.1. SIM Design Recommendations

(1) It’s recommended to take Electrostatic Discharge (ESD) protection

measures near the USIM card socket.

(2) The USIM socket shall be placed near the NGFF interface. The length of

the traces shall not exceed 100mm.

(3) The SIM_DECECT signal is used to detect the insertion of and removal

of SIM card from SIM socket.
With a Normal Short SIM Card Connector, PUSH-PUSH type, the detect
switch is normally shorted to the ground when no SIM card is inserted.

a. When SIM card in inserted the SIM_DETECT shall transition from

Logic 0 state to Logic 1 state. The rising edge shall indicate the
insertion of SIM card.

b. When SIM card is removed from the socket the SIM_DETECT

shall transition from 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.

(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. Power On & Reset

The host platform has two signals to power on/off and reset the WWAN M.2
module

Table 3.3-1 Power On & Reset Interface

Signal Name Pin Voltage

Description

Level

FULL_CARD_POWER_OFF 6 3.3 V or

1.8V

This is an “Active Low”
pin. When the state is
“Low” the M.2 module
powers off, internally
pulled down by 100K
ohm resister. When the
state is “High” the M.2
module powers on and it
should be 3.3 V tolerant.
Also, 1.8V is supported
as well.

RESET# 67 1.8V Asynchronous RESET#

pin is an “Active Low”
pin. Whenever this
active the M.2 module
will immediately be
taken and placed in the
Power On reset
condition. M.2 Module is
NOT recommended to
activate this pin unless
there is a critical failure
or all other approaches
of regaining control
and/or communication
with M.2 Module have
failed. It is
recommended to install

one capacitor (10­100pF) close to the M.2

module pin.

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
capabilities.

Table 3.3.2 Host Radio Disable Interface

Signal Name Pin Voltage

Description

Level

W_DISABLE#1 8 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. When the
state is "High" the radio
transmitter is to be made
capable of transmitting,
internally pulled up. The
radio can also be toggled
by software (AT
commands).

W_DISABLE#2 26 3.3V This is an “Active Low” pin

to disable the GPS radio of
LN940 M.2 Module. When
the state is “Low” the M.2
module radio can be
disabled and made
incapable of transmitting.
When the state is "High"
the radio transmitter is to
be made capable of
transmitting, internally
pulled up. The radio can
also be toggled by
software (AT commands).

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 Pin Voltage

Description

Level

LED#1 (OD) 10 3.3V This is an “Active Low”

output signal intended to
drive system-mounted LED
indicators. When the state
is “Low” the LED is lit to
indicate radio capable of
transmitting. When the
state is “High” the LED is
NOT lit to indicate radio
incapable of transmitting.

Figure 3.3.3 LED-to-host Design recommendation

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 Pin Voltage

Description

Level

Wake_WWAN#(OD) 10 1.8V This is an “Active Low”,

“Open Drain” output
signal, used to wake the
host

When the LN940 M.2 WWAN module is about to wake host an one second low
pulse

Table 3.3.4 host side design recommendation

3.3.5. Dynamic Power Reduction

With the SAR (Specific Absorption Rate) regulatory requirement met for the
design of Tablets and Ultrabooks in which the antenna is in the base of the unit
the DPR# is available to trigger the reduction of radio transmit power.

The signal to DPR# is provided to trigger by the proximity sensor of the host.

The required value of the transmit power reduction may vary by different host
designs. The assertion and deassertion of DPR is asynchronous to any system
clock. All transients resulting from the proximity sensor is required to de­bounce by system circuitry.

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.

Table 3.3.5 DPR interface

Signal Name Pin Voltage

Description

Level

DPR# 25 3.3V This is an “Active Low”,

input signal. When the state
is “Low” the SAR power
back off is enabled. When
the state is “High” the SAR
power back off is disabled,
internally pulled up.

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. It’s preferred to use
switches/tunable components directly on the antenna for antenna band
switching or tuning for efficiency improvement.

Four GPIO pins are available on the host interface that can be connected to an
external antenna switch, to load the antenna with different impedances, and to
configure the different frequency responses for the main antenna

Table 3.4-1 Tunable Antenna GPIO interface

Signal Name Pin Voltage

Level

ANTCTL0 59 1.8V Antenna Control 0

ANTCTL1 61 1.8V Antenna Control 1

Description

ANTCTL2 63 1.8V Antenna Control 2

ANTCTL3 65 1.8V Antenna Control 3

Alternatively two MIPI signals are also available to configure the external
antenna tuner.

Table 3.4-1 Tunable Antenna MIPI Interface

Signal Name Pin Voltage

Description

Level

MIPI_CLK 56 1.8V MIPI Clock

MIPI_DATA 58 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
transmissions and receptions. This problem will increase further as overlapping
bands continue to be rolled out. WLAN, BT, WWAN will all use overlapping
bands, ranging from 2300Mhz to 2600Mhz.

In-Device Coexistence is a feature which improves the user experience and
maximizes throughput and QoS of connectivity systems (WLAN, BT and
GNSS) when these radios are simultaneously running with the WWAN M.2
LTE modem.

These three COEX interfaces are provided to implement In-device wireless
coexistence solution.

Table 3.5 In device coexistence Interface

Signal Name Pin Voltage

Description

Level

COEX3 60 1.8V LTE_ACTIVE (COEX_TXD)

COEX2 62 1.8V LTE_FRAME_SYNC

(COEX_RXD)

COEX1 64 1.8V LTE_ACTIVE (COEX_TXD)

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

73

Configuration Pins

There are 4 Configuration pins on the WWAN M.2 Module to assist the host
identifying the presence of an Add-In card in the socket.

All configuration pins can be read and decoded by the host platform to
recognize the indicated module configuration and host interface supported.

Table 3.7 configuration Interface

Item Module Configuration Decode Module

Type

Signal
Name

Pin 21 69 75 1

CONFIG_0 CONFIG_1 CONFIG_2 CONFIG_3 WWAN-

USB3.0

Port
Configuration

0

State GND GND GND GND

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
(3GPP Compliant)

Restricted Operating Temperature (*1)
(Operational, non-3GPP Compliant)

Extendable (with Limited Performance)(*2) -40°C N/A 85°C

Operating Voltage 3.135 V 3.3V 4.4V

(*1) Restricted Operation allows normal mode data transmission for limited time
until automatic thermal shutdown takes effect. Within the restricted temperature
range (outside the operating temperature range) the specified electrical
characteristics may be increased or decreased

(*2) A tolerance on the sated shutdown threshold may occur. The deviation is in
the range of +/-2

°C at the limits of over temperature and under temperature.

-10°C 25°C 55°C

-20°C 25°C 70°C

It may damage the M.2 Module when it is being operated under the condition
beyond its absolute maximum ratings (Table 7-1). Absolute maximum ratings
are limiting values to be considered individually when all other parameters
are within their specified operating ranges. Functional operation and
specification compliance under any absolute maximum condition, or after
exposure to any of these conditions, is not guaranteed or implied.

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
Voltage

3.135 3.3 4.4 Vcc

(*) The minimum voltage supplied to M.2 module by the host platform has to be

3.135 V. With voltage supplied below 3.135 V the M.2 module may shut off

abnormally and the RF performance cannot be guaranteed.

Power Consumption

< ALL data below is reference only, to be updated in July>

USE Scenario Sample Test

WCDMA in
Suspend mode

TBD

WCDMA
(Tx=24dBm)

TBD

LTE in Suspend
mode

TBD

LTE (16QAM)
Tx=23 dBm

TBD

LTE CA Mode,
Tx=23dBm

TBD

GPS/GNSS
Tracking

TBD

Connected
Standby

TBD

Targeted Value
(Typical)

<5mA

<800mA

<5mA

<900mA

<1100mA

<150mA

<3mA

<1200mA

<1500mA

Targeted Value
(Max)

<1100mA

<300mA

Radio Off TBD

<3mA

6. OTHER REQUIREMENTS

Conducted Transmit Power

Table 8-4 Maximum Conducted Transmit Power

(ACLR > 5dB margin @room temperature)

Condition Operating Bands Tx Design

Requirement

E-UTRA
Class 3

W-CDMA
Class 3

1,2,3(9),4,5,(18/19/26),7/8/
12(17)/13/20/21/25/28/29/30/
38/39/40/41

1,2,4,5,8 23.5dBm +/-1dB 23.5dBm +/-1dB

23dBm +/- 1dB 23dBm +/- 1dB

Tx Manufacturing
Requirement

Receiver Sensitivity

Table 8-5 Minimum Conducted Receiver Sensitivity (10Mhz LTE BW)

LTE Band PRx (dBm) DRx (dBm) MIMO Combined

(dBm)

1 -97.5 -97 -100

2 -98 -97 -100

3 -98.5 -97 -100

4 -97 -97 -100

5 -99 -100 -102

7 -98.5 -97 -100

8 -99.5 -99.5 -102.5

12 -99 -99 -102

13 -99 -98.5 -101.5

17 -99 -99 -102

18 -99 -99 -102

19 -99 -99 -102

20 -99 -98.5 -101.5

21 -98 -98 -101

25 -98 -97 -100

26 -99 -99 -102

28 -98.5 -99 -101

29 -98 -98 -101

30 -97 -96.5 -100

38 -97.5 -97 -100.5

39 -98 -98 -100

40 -97 -97 -100

41 -97.5 -96 -99

66 -97 -97 -100

Table 8-5-2 Minimum Conducted Receiver Sensitivity (WCDMA)

WCDMA Band PRx (dBm) DRx (dBm) MIMO Combined

(dBm)

1 -109 -109 -112

2 -109 -109 -112

3 -109 -109 -112

4 -109 -109 -112

5(6/19) -110 -110 -113

8 -110 -110 -113

Antenna Recommendations

The antenna elements are typically intergraded into the notebook and tablet
with connection to 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.

To assure the RF performance the following antenna guidance shall be
followed by platform designers.

Table 8.6-1 Main Antenna Design Guideline

Parameter Min. Typical Max. Units

Description

Cable Loss / / 50 dB Maximum loss to antenna

Impedance / 50 / Ohm Antenna load impedance

VSWR / / 3:1 / Maximum VSWR of

antenna allowed

Table 8.6-2 Aux Antenna Design Guideline

Parameter Description

Gain Maximum gain and uniform coverage in high angle elevation and

zenith. Gain in the azimuth is not desired

Average 3D

It has to be greater than 5dBi

Gain

VSWR Typical Value has to be less than 3:1

Isolation
(Diversity/AUX
to MAIN)

It has to be greater than 10dB in all related bands

Polarization Any

GNSS Sensitivity

Table 8-7 Minimum Conducted Receiver Sensitivity (GNSS)

GNSS Design

Requirement
(dBm)

Tracking Sensitivity -152

7. WWAN CARD TYPE 3042

Mechanical Dimension

LN940 WWAN M.2 module is compatible with the PCI Express M.2
specification.

Figure Mechanical Dimension

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)

Antenna Connector Locations

Figure Antenna Connector Location

Table Antenna Connector Assignment

Antenna Interface

0 N/A

1 WWAN Main TX/RX

2 N/A

3 N/A

4 WWAN AUX RX/GNSS

5 N/A

Figure. RF Connector Specification

Figure RF Receptacles Specification

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.

 Where there is risk of explosion such as gasoline stations, oil refineries,

etc. It is the responsibility of the user to enforce the country regulation
and the specific environment regulation.

Do not disassemble the product; any mark of tampering will compromise the
warranty validity. We recommend following the instructions of the hardware user
guides for correct wiring of the product. The product has to be supplied with a
stabilized voltage source and the wiring has to be conformed to the security and
fire prevention regulations. The product has to be handled with care, avoiding
any contact with the pins because electrostatic discharges may damage the
product itself. Same cautions have to be taken for the SIM, checking carefully
the instruction for its use. Do not insert or remove the SIM when the product is
in power saving mode.

The system integrator is responsible for the functioning of the final product;
therefore, care has to be taken to the external components of the module, as
well as any project or installation issue, because the risk of disturbing the GSM
network or external devices or having impact on the security. Should there be
any doubt, please refer to the technical documentation and the regulations in
force. Every module has to be equipped with a proper antenna with specific
characteristics. The antenna has to be installed with care in order to avoid any
interference with other electronic devices and has to guarantee a minimum
distance from the body (20 cm). In case this requirement cannot be satisfied, the
system integrator has to assess the final product against the SAR regulation.

The European Community provides some Directives for the electronic
equipment introduced on the market. All of the relevant information is available
on the European Community website:

http://ec.europa.eu/enterprise/sectors/rtte/documents/

The text of the Directive 99/05 regarding telecommunication equipment is
available,

while the applicable Directives (Low Voltage and EMC) are available at:

http://ec.europa.eu/enterprise/sectors/electrical/

9. ACRONYMS

NGFF

Next Generation Form Factor

10. DOCUMENT HISTORY

Revision Date Changes

0.1 2017-01-13 First issue (Preliminary)

1 2015-06-26 RF sensitivity updated, CA configurations

updated

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.

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 generate, 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 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.

FCC Caution: Any changes or modifications not expressly approved by the

party responsible for compliance could void the user's authority to operate this

equipment.

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

other antenna or transmitter.

Radiation Exposure Statement:

This equipment complies with FCC radiation exposure limits set forth for an

uncontrolled environment. This equipment should be installed and operated

with minimum distance 20cm between the radiator & your body.

This device is intended only for OEM integrators under the following conditions:

The antenna must be installed such that 20 cm is maintained between the

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

example certain laptop configurations or co-location with another transmitter),

then the FCC authorization is no longer considered valid and the FCC ID can

not be used on 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 FCC authorization.

End Product Labeling

This transmitter module is authorized only for use in device where the antenna

may be installed such that 20 cm may be maintained between the antenna

and users. The final end product must be labeled in a visible area with the
following: “Contains FCC ID: RI7LN940A9”. The grantee's FCC ID can be used

only when all FCC compliance requirements are met.

Manual Information To the End User

The OEM integrator has to be aware not to provide information to the end user

regarding how to install or remove this RF module in the user’s manual of the

end product which integrates this module.

The end user manual shall include all required regulatory information/warning

as show in this manual.

Industry Canada statement:

This device complies with ISED’s licence-exempt RSSs. 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.

Le présent appareil est conforme aux CNR d’ ISED applicables aux appareils

radio exempts de licence. L’exploitation est autorisée aux deux conditions

suivantes : (1) le dispositif ne doit pas produire de brouillage pré judiciable, et

(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 & your body.

Dé claration d'exposition aux radiations:

Cet é quipement est conforme aux limites d'exposition aux rayonnements ISED

é tablies pour un environnement non contrô lé . Cet é quipement doit ê tre

installé et utilisé avec un minimum de 20 cm de distance entre la source de

rayonnement et votre corps.

This device is intended only for OEM integrators under the following conditions:

(For module device use)

1) The antenna must be installed such that 20 cm is maintained between the

antenna and users, and

2) 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.

Cet appareil est conç u uniquement pour les intégrateurs OEM dans les

conditions suivantes: (Pour utilisation de dispositif module)

1) L'antenne doit ê tre installé e de telle sorte qu'une distance de 20 cm est

respecté e entre l'antenne et les utilisateurs, et

2) Le module é metteur peut ne pas ê tre coïmplanté avec un autre é metteur

ou antenne.

Tant que les 2 conditions ci-dessus sont remplies, des essais supplé mentaires

sur l'é metteur ne seront pas né cessaires. Toutefois, l'inté grateur OEM est

toujours responsable des essais sur son produit final pour toutes exigences de

conformité supplé mentaires requis pour ce module installé .

IMPORTANT NOTE:

In the event that these conditions can not be met (for example certain laptop

configurations or co-location with another transmitter), then the Canada

authorization is no longer considered valid and the IC ID can not be used on

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 metteur), l'autorisation du Canada n'est plus considé ré

comme valide et l'ID IC ne peut pas ê tre utilisé sur le produit final. Dans ces

circonstances, l'inté grateur OEM sera chargé de réé valuer le produit final (y

compris l'é metteur) et l'obtention d'une autorisation distincte au Canada.

End Product Labeling

This transmitter module is authorized only for use in device where the antenna

may be installed such that 20 cm may be maintained between the antenna

and users. The final end product must be labeled in a visible area with the

following: “Contains IC: 5131A-LN940A9”.

Plaque signalé tique du produit final

Ce module é metteur est autorisé uniquement pour une utilisation dans un

dispositif où l'antenne peut ê tre installé e de telle sorte qu'une distance de

20cm peut ê tre maintenue entre l'antenne et les utilisateurs. Le produit final

doit ê tre é tiqueté dans un endroit visible avec l'inscription suivante: "Contient

des IC: 5131A-LN940A9".

Manual Information To the End User

The OEM integrator has to be aware not to provide information to the end user

regarding how to install or remove this RF module in the user’s manual of the

end product which integrates this module.

The end user manual shall include all required regulatory information/warning

as show in this manual.

Manuel d'information à l'utilisateur final

L'inté grateur OEM doit ê tre conscient de ne pas fournir des informations à

l'utilisateur final quant à la faç on d'installer ou de supprimer ce module RF

dans le manuel de l'utilisateur du produit final qui intè gre ce module.

Le manuel de l'utilisateur final doit inclure toutes les informations

ré glementaires requises et avertissements comme indiqué dans ce manuel.