Huawei ME909s Series LTE LGA Module Hardware Guide (V100R001 04, English)

2016-12-28

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HUAWEI ME909s Series LTE LGA Module

Hardware Guide

Issue

Date

2016-12-21

Copyright © Huawei Technologies Co., Ltd. 2016. All rights reserved.
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HUAWEI ME909s Series LTE LGA Module
Hardware Guide

About This Document

About This Document
Revision History
Document
Version

Date

2015-08-14

2016-02-20

Issue 04 (2016-12-21)

2016-09-06

Chapter

Descriptions
Initial release

2.4

Deleted Application Block Diagram

2.2

Updated Table 2-1 Features

3.2

Updated LGA Interface

3.5

Updated UART Interface

3.9

Updated GPIO Interface

4.2

Updated the NOTE of Operating
Frequencies

4.5.3

Updated Antenna Requirements

5.6

Updated EMC and ESD Features

6.5

Updated Packaging

Updated Table 2-1 Features

3.2

Updated Figure 3-1 Sequence of LGA
interface (Top view)

3.4.8

Updated Figure 3-15 Connections of the
USIM_DET pin

3.7

Updated Figure 3-19 Circuit of the USIM
card interface

5.4.2

Updated Table 5-6 Averaged standby DC
power consumption of ME909s-821 LGA
module

6.6.2

Updated Figure 6-4 LGA module Footprint
design (Unit: mm)

6.8.2

Updated Figure 6-8 Recommended stencil
design of LGA module (Unit: mm)

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Version

Date

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About This Document

Chapter

Descriptions

6.9.3

Updated Figure 6-10 Equipment used for
rework

3.2

Updated Table 3-1 Definitions of pins on the
LGA interface

5.5

Updated Table 5-12 Test conditions and
results of the reliability of the ME909s LGA
module

Scope
ME909s-821
ME909s-120

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Hardware Guide

Contents

Contents
1 Introduction ........................................................................................................................... 8
2 Overall Description ............................................................................................................... 9
2.1 About This Chapter.......................................................................................................................... 9
2.2 Function Overview .......................................................................................................................... 9
2.3 Circuit Block Diagram .................................................................................................................... 11

3 Description of the Application Interfaces ......................................................................... 13
3.1 About This Chapter........................................................................................................................ 13
3.2 LGA Interface ................................................................................................................................ 13
3.3 Power Interface ............................................................................................................................. 24
3.3.1 Overview............................................................................................................................... 24
3.3.2 Power Supply VBAT Interface............................................................................................... 25
3.3.3 Output Power Supply Interface ............................................................................................. 27
3.4 Signal Control Interface................................................................................................................. 27
3.4.1 Overview............................................................................................................................... 27
3.4.2 Power-on/off Pin ................................................................................................................... 29
3.4.3 RESIN_N .............................................................................................................................. 31
3.4.4 WAKEUP_IN Signal .............................................................................................................. 32
3.4.5 WAKEUP_OUT Signal .......................................................................................................... 33
3.4.6 SLEEP_STATUS Signal........................................................................................................ 33
3.4.7 LED_MODE Signal ............................................................................................................... 34
3.4.8 USIM_DET Pin ..................................................................................................................... 35
3.5 UART Interface.............................................................................................................................. 37
3.5.1 Overview............................................................................................................................... 37
3.5.2 Circuit Recommended for the UART Interface...................................................................... 38
3.6 USB Interface ................................................................................................................................ 39
3.7 USIM Card Interface ..................................................................................................................... 40
3.7.1 Overview............................................................................................................................... 40
3.7.2 Circuit Recommended for the USIM Card Interface.............................................................. 41
3.8 Audio Interface .............................................................................................................................. 42
3.9 GPIO Interface .............................................................................................................................. 44
3.10 ADC Interface .............................................................................................................................. 47
3.11 JTAG Interface............................................................................................................................. 47

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3.12 RF Antenna Interface .................................................................................................................. 48
3.13 Reserved Interface ...................................................................................................................... 51
3.14 NC Interface ................................................................................................................................ 51
3.15 Test Points Design....................................................................................................................... 52

4 RF Specifications ................................................................................................................. 53
4.1 About This Chapter........................................................................................................................ 53
4.2 Operating Frequencies .................................................................................................................. 53
4.3 Conducted RF Measurement ........................................................................................................ 55
4.3.1 Test Environment .................................................................................................................. 55
4.3.2 Test Standards ...................................................................................................................... 55
4.4 Conducted Rx Sensitivity and Tx Power ....................................................................................... 55
4.4.1 Conducted Receive Sensitivity ............................................................................................. 55
4.4.2 Conducted Transmit Power .................................................................................................. 57
4.5 Antenna Design Requirements ...................................................................................................... 58
4.5.1 Antenna Design Indicators .................................................................................................... 58
4.5.2 Interference .......................................................................................................................... 61
4.5.3 Antenna Requirements ......................................................................................................... 61
4.6 Suggestions about LTE and 2.4 GHz Wi-Fi Co-existence ............................................................. 62
4.6.1 Theory Analysis .................................................................................................................... 62
4.6.2 Suggestions about the Interference ...................................................................................... 63

5 Electrical and Reliability Features ..................................................................................... 64
5.1 About This Chapter........................................................................................................................ 64
5.2 Absolute Ratings ........................................................................................................................... 64
5.3 Operating and Storage Temperatures ........................................................................................... 64
5.4 Power Supply Features ................................................................................................................. 65
5.4.1 Input Power Supply............................................................................................................... 65
5.4.2 Power Consumption ............................................................................................................. 66
5.5 Reliability Features ........................................................................................................................ 75
5.6 EMC and ESD Features ................................................................................................................ 78

6 Mechanical Specifications .................................................................................................. 81
6.1 About This Chapter........................................................................................................................ 81
6.2 Storage Requirement .................................................................................................................... 81
6.3 Moisture Sensitivity ....................................................................................................................... 81
6.4 Dimensions ................................................................................................................................... 82
6.5 Packaging ..................................................................................................................................... 82
6.6 Customer PCB Design .................................................................................................................. 85
6.6.1 PCB Surface Finish .............................................................................................................. 85
6.6.2 PCB Pad Design................................................................................................................... 85
6.6.3 Solder Mask .......................................................................................................................... 85
6.6.4 Requirements on PCB Layout .............................................................................................. 85
6.7 Thermal Design Solution ............................................................................................................... 86

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6.8 Assembly Processes ..................................................................................................................... 88
6.8.1 General Description of Assembly Processes ........................................................................ 88
6.8.2 Stencil Design ....................................................................................................................... 88
6.8.3 Reflow Profile ....................................................................................................................... 89
6.9 Specification of Rework ................................................................................................................. 90
6.9.1 Process of Rework................................................................................................................ 90
6.9.2 Preparations of Rework ........................................................................................................ 91
6.9.3 Removing of the Module....................................................................................................... 91
6.9.4 Welding Area Treatment ....................................................................................................... 92
6.9.5 Module Installation................................................................................................................ 92
6.9.6 Specifications of Rework....................................................................................................... 92

7 Certifications ........................................................................................................................ 93
7.1 About This Chapter........................................................................................................................ 93
7.2 Certifications ................................................................................................................................. 93

8 Safety Information .............................................................................................................. 94
8.1 About This Chapter........................................................................................................................ 94
8.2 Interference ................................................................................................................................... 94
8.3 Medical Device .............................................................................................................................. 94
8.4 Area with Inflammables and Explosives ........................................................................................ 95
8.5 Traffic Security .............................................................................................................................. 95
8.6 Airline Security .............................................................................................................................. 95
8.7 Safety of Children.......................................................................................................................... 95
8.8 Environment Protection ................................................................................................................. 96
8.9 WEEE Approval............................................................................................................................. 96
8.10 RoHS Approval............................................................................................................................ 96
8.11 Laws and Regulations Observance ............................................................................................. 96
8.12 Care and Maintenance ................................................................................................................ 96
8.13 Emergency Call ........................................................................................................................... 97
8.14 Regulatory Information ................................................................................................................ 97
8.14.1 CE Approval (European Union) .......................................................................................... 97

9 Appendix A Circuit of Typical Interface ........................................................................... 98
10 Appendix B Acronyms and Abbreviations ..................................................................... 99

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HUAWEI ME909s Series LTE LGA Module
Hardware Guide

Introduction

This document describes the hardware application interfaces and air interfaces
provided by HUAWEI ME909s Series (ME909s-821 and ME909s-120) LTE LGA
Module (hereinafter referred to as the ME909s LGA module).
This document helps hardware engineer to understand the interface specifications,
electrical features and related product information of the ME909s LGA module.

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Hardware Guide

Overall Description

2.1 About This Chapter
This chapter gives a general description of the ME909s LGA module and provides:


Function Overview



Circuit Block Diagram

2.2 Function Overview
Table 2-1 Features
Feature

Description

Physical
Dimensions

ME909s-821


Dimensions (L × W × H): 30 mm × 30 mm × 2.57 mm



Weight: about 5 g

ME909s-120

Operating
Bands

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

Dimensions (L × W × H): 30 mm × 30 mm × 2.52 mm



Weight: about 5 g

ME909s-821


FDD LTE: Band 1, Band 3, Band 8, all bands with diversity



TDD LTE: Band 38, Band 39, Band 40, Band 41, all bands with
diversity



DC-HSPA+/HSPA+/HSPA/WCDMA: Band 1, Band 5, Band 8,
Band 9, all bands with diversity



TD-SCDMA: Band 34, Band 39



GSM/GPRS/EDGE: 1800 MHz/900 MHz

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Feature

Overall Description

Description
ME909s-120


FDD LTE: Band 1, Band 2, Band 3, Band 4, Band 5, Band 7,
Band 8, Band 20, all bands with diversity



WCDMA/HSDPA/HSUPA/HSPA+: Band 1, Band 2, Band 5,
Band 8, all bands with diversity



GSM/GPRS/EDGE: 850 MHz/900 MHz/1800 MHz/1900 MHz

Operating
Temperature

Normal operating temperature: –30°C to +75°C

Storage
Temperature

–40°C to +85°C

Humidity

RH5% to RH95%

Power
Voltage

DC 3.2 V to 4.2 V (typical value is 3.8 V)

AT
Commands

See the HUAWEI ME909s Series LTE Module AT Command
Interface Specification.

Application
Interface
(145-pin LGA
interface)

One standard USIM (Class B and Class C) interface

[1]

Extended operating temperature : –40°C to +85°C

Audio interface: PCM interface
USB 2.0 (High Speed)
UART interface:


8-wire UART0 x 1



2-wire UART2 x 1 (This is only used for debugging)

GPIO
ADC x 2
LED x 1
Power on/off interface
Hardware reset interface
JTAG interface
SLEEP_STATUS
WAKEUP_IN
WAKEUP_OUT
USIM_DET
Antenna
Interface



WWAN MAIN antenna pad x 1



WWAN AUX antenna pad x 1

SMS

New message alert

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Feature

Overall Description

Description
Management of SMS: read SMS, write SMS, send SMS, delete
SMS and list SMS
Supports MO and MT: Point-to-point

Data Services

ME909s-821
GPRS: UL 85.6 kbit/s; DL 85.6 kbit/s
EDGE: UL 236.8 kbit/s; DL 236.8 kbit/s
WCDMA CS: UL 64 kbit/s; DL 64 kbit/s
WCDMA PS: UL 384 kbit/s; DL 384 kbit/s
HSPA+: UL 5.76 Mbit/s; DL 21.6 Mbit/s
DC-HSPA+: UL 5.76 Mbit/s; DL 42 Mbit/s
TD-HSPA: UL 2.2 Mbit/s; DL 2.8 Mbit/s
TD-SCDMA PS: UL 384 kbit/s; DL 2.8 Mbit/s
LTE FDD: UL 50 Mbit/s; DL 150 Mbit/s @20M BW cat4
LTE TDD: UL 10 Mbit/s; DL 112 Mbit/s @20M BW cat4
(Uplink-downlink configuration 2, 1:3)
ME909s-120
GPRS: UL 85.6 kbit/s; DL 85.6 kbit/s
EDGE: UL 236.8 kbit/s; DL 236.8 kbit/s
WCDMA CS: UL 64 kbit/s; DL 64 kbit/s
WCDMA PS: UL 384 kbit/s; DL 384 kbit/s
HSPA+: UL 5.76 Mbit/s; DL 21.6 Mbit/s
DC-HSPA+: UL 5.76 Mbit/s; DL 42 Mbit/s
LTE FDD: UL 50 Mbit/s; DL 150 Mbit/s @20M BW cat4

Operating

Android 2.x/3.x/4.x

Systems

Linux (Kernel 2.6.29 or later)
Windows 7/8/8.1/10
Windows CE 5.0/6.0/7.0

[1]: When the ME909s LGA module works in the range from –40°C to –30°C or +75°C to +85°C,
NOT all their RF performances comply with 3GPP specifications.

2.3 Circuit Block Diagram
The ME909s LGA module is developed based on Huawei's Balong Hi6921M platform.
Figure 2-1 shows the circuit block diagram of the module. The major functional units of
the module contain the following parts:


Power Management



Baseband Controller

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

Nand Flash



RF Circuit

Overall Description

Figure 2-1 Circuit block diagram of the ME909s LGA module

Nand flash

PMU

AUX_ANT

RFIC and Front end circuits

MAIN_ANT

WAKEUP_OUT

USIM_Switch
USIM_DET

JTAG
WAKEUP_IN

USB

UART

USIM

PCM

GPIO

GND
ADC
LED

Power on/off

RESET

VBAT

Baseband Controller

LGA Interface

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Description of the Application Interfaces

3.1 About This Chapter
This chapter mainly describes the external application interfaces of the ME909s LGA
module, including:


LGA Interface



Power Interface



Signal Control Interface



UART Interface



USB Interface



USIM Card Interface



Audio Interface



GPIO Interface



ADC Interface



JTAG Interface



RF Antenna Interface



Reserved Interface



NC Interface



Test Points Design

3.2 LGA Interface
The ME909s LGA module uses the 145-pin LGA as their external interface. For details
about the module and dimensions, see 6.4 Dimensions .
Figure 3-1 shows the sequence of pins on the 145-pin signal interface of the ME909s
LGA module.

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Description of the Application Interfaces

Figure 3-1 Sequence of LGA interface (Top view)

ADC

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Description of the Application Interfaces

Figure 3-2 Appearance of the module (Without Label)

Table 3-1 shows the definitions of pins on the 145-pin signal interface of the ME909s
LGA module.
Table 3-1 Definitions of pins on the LGA interface
Pin
No.

Pin Name

Pad
Type

Description

Parameter

Min.
(V)

Typ.
(V)

Max.
(V)

Comments

Reserved

Reserved, please keep
this pin open.

Reserved

Reserved, please keep
this pin open.

Reserved

Reserved, please keep
this pin open.

Reserved

Reserved, please keep
this pin open.

PCM_SYNC[1]

PCM sync

VOH

1.35

1.8

1.98

VOL

0.45

VIH

1.17

1.8

1.98

VIL

–0.3

0.63

VOH

1.35

1.8

1.98

VOL

0.45

VOH

1.35

1.8

1.98

VOL

0.45

VOH

2.25

3.0

3.15

VOL

3.0

0.375

Only used
for
debugging.

VIH

1.875

3.0

3.15

Please

PCM_DIN

PCM_DOUT

PCM_CLK[1]

SD_DATA1

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I/O

PCM data in

PCM data out

PCM clock

SD Card data signal.

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Pin
No.

Pin Name

SD_DATA2

WAKEUP_IN

Pad
Type

I/O

Description

SD Card data signal.

Sleep authorization
signal.
H: Sleep mode is
disabled.

Description of the Application Interfaces

Parameter

Min.
(V)

Typ.
(V)

Max.
(V)

Comments

VIL

–0.3

3.0

0.721
5

reserve this
pin as the
test point.

VOH

2.25

3.0

3.15

VOL

3.0

0.375

VIH

1.875

3.0

3.15

VIL

–0.3

3.0

0.721
5

VIH

1.17

1.8

1.98

VIL

–0.3

0.63

3.2

3.8

4.2

3.2

3.8

4.2

L: Sleep mode is
enabled (default value).
12

VBAT

Power supply input for
RF.
The rising time of VBAT
must be greater than
100 µs

VBAT

Power supply input
The rising time of VBAT
must be greater than
100 µs

Reserved

Reserved, please keep
this pin open.

SLEEP_STAT
US

Sleep status indicator.

VOH

1.35

1.8

1.98

VOL

0.45

H: Module is in wakeup
state.
L: Module is in sleep
state.

Reserved

Reserved, please keep
this pin open.

Reserved

Reserved, please keep
this pin open.

Reserved

Reserved, please keep
this pin open.

Reserved

Reserved, please keep
this pin open.

Reserved

Reserved, please keep
this pin open.

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Pin
No.

Pin Name

Pad
Type

Reserved

Description of the Application Interfaces

Description

Parameter

Min.
(V)

Typ.
(V)

Max.
(V)

Comments

Reserved, please keep
this pin open.

Reserved

Reserved, please keep
this pin open.

Reserved

Reserved, please keep
this pin open.

Reserved

Reserved, please keep
this pin open.

Not connected

Reserved

Reserved, please keep
this pin open.

UART2_TX

UART2 transmit output

VOH

1.35

1.8

1.98

VOL

0.45

Only used
for
debugging.

VIH

1.17

1.8

1.98

VIL

–0.3

0.63

VIH

1.17

1.8

1.98

VIL

–0.3

0.63

UART2_RX

JTAG_TMS

UART2 receive data
input

JTAG test mode select.

Please
reserve this
pin as the
test point.
-

Reserved

Reserved, please keep
this pin open.

VCC_EXT1

1.8 V Power output

1.62

1.8

1.98

Reserved

Reserved, please keep
this pin open.

USIM_VCC

Power supply for USIM
card.

1.75

1.8

1.98

USIM_VCC=
1.8 V

2.75

3.0

3.3

USIM_VCC=
3.0 V

Reserved

Reserved, please keep
this pin open.

JTAG_TRST_
N

JTAG reset

VIH

1.17

1.8

1.98

VIL

–0.3

0.63

Reserved

Reserved, please keep
this pin open.

Not connected

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Description of the Application Interfaces

Pin
No.

Pin Name

Pad
Type

Description

Parameter

Min.
(V)

Typ.
(V)

Max.
(V)

Comments

Not connected

JTAG_TCK

JTAG clock input

VIH

1.17

1.8

1.98

VIL

–0.3

0.63

VOH

1.35

1.8

1.98

VOL

0.45

VIH

1.17

1.8

1.98

VIL

–0.3

0.63

GPIO1

I/O

General Purpose I/O
pins.

The function
of these pins
has not been
defined.

Reserved

Reserved, please keep
this pin open.

Reserved

Reserved, please keep
this pin open.

GPIO2

I/O

General Purpose I/O
pins.

VOH

1.35

1.8

1.98

VOL

0.45

VIH

1.17

1.8

1.98

The function
of these pins
has not been
defined.

VIL

–0.3

0.63

Not connected

GND

Ground

NOT USED

Do not design PAD

GND

Ground

GPIO3

I/O

General Purpose I/O
pins.

VOH

1.35

1.8

1.98

VOL

0.45

VIH

1.17

1.8

1.98

The function
of these pins
has not been
defined.

VIL

–0.3

0.63

GND

Ground

NOT USED

Do not design PAD

GND

Ground

GPIO4/USIM_
Switch

I/O

General Purpose I/O
pins (Default) or USIM

VOH

1.35

1.8

1.98

The function
of this pin
can be used

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Pin
No.

Pin Name

Pad
Type

Description of the Application Interfaces

Description

Parameter

Min.
(V)

Typ.
(V)

Max.
(V)

Switch control signal.

VOL

0.45

VIH

1.17

1.8

1.98

VIL

–0.3

0.63

Comments
as GPIO or
USIM
Switch, while
the USIM
Switch
should be
enabled by
AT
command.

GND

Ground

NOT USED

Do not design PAD

GND

Ground

GND

Ground

Reserved

Reserved, please keep
this pin open.

Reserved

Reserved, please keep
this pin open.

Reserved

Reserved, please keep
this pin open.

Reserved

Reserved, please keep
this pin open.

Reserved

Reserved, please keep
this pin open.

Reserved

Reserved, please keep
this pin open.

SD_DATA3

I/O

SD Card data signal.

VOH

2.25

3.0

3.15

VOL

SD_CLK

SD_DATA0

Issue 04 (2016-12-21)

I/O

SD Card CLK signal.

SD Card data signal.

3.0

0.375

VIH

1.875

3.0

3.15

VIL

–0.3

3.0

0.721
5

VOH

2.25

3.00

3.15

VOL

0.375

VOH

2.25

3.0

3.15

VOL

3.0

0.375

VIH

1.875

3.0

3.15

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Only used
for
debugging.
Please
reserve this
pin as the
test point.

HUAWEI ME909s Series LTE LGA Module
Hardware Guide

Pin
No.

Pin Name

SD_CMD

USIM_DET

Pad
Type

Description of the Application Interfaces

Parameter

Min.
(V)

Typ.
(V)

Max.
(V)

VIL

–0.3

3.0

0.721
5

VOH

2.25

3.00

3.15

VOL

0.375

VIH

1.62

1.8

1.98

VIL

0.18

VOH

1.35

1.8

1.98

VOL

0.45

VOH

1.35

1.8

1.98

VOL

0.45

VOH

1.35

1.8

1.98

VOL

0.45

VOH

1.35

1.8

1.98

VOL

0.45

VOH

1.35

1.8

1.98

VOL

0.45

VOH

1.35

1.8

1.98

VOL

0.45

VOH

1.35

1.8

1.98

VOL

0.45

UART0 receive data
input

VIH

1.17

1.8

1.98

VIL

–0.3

0.63

UART0 Data Terminal
Ready

VIH

1.17

1.8

1.98

VIL

–0.3

0.63

VIH

1.17

1.8

1.98

VIL

–0.3

0.63

VIH

1.62

1.8

1.98

VIL

0.18

Description

SD Card cmd signal.

USIM hot swap
detection pin.
When it is High, USIM is
present.
When it is Low, USIM is
absent.

WAKEUP_OU
T
JTAG_TDO

UART0_DSR

UART0_RTS

UART0_DCD

UART0_TX

UART0_RING

UART0_RX

UART0_DTR

UART0_CTS

POWER_ON_
OFF

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Module to wake up the
host.
JTAG test data output

UART0 data set Ready

UART0 request to send

UART0 Data Carrier
Detect
UART0 transmit output

UART0 Ring Indicator

UART0 Clear to Send

System power-on or
power-off

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Comments

The signal is
internally
pulled up.
Keep
USIM_DET
floating, if it
is not used.
-

The signal is
internally
pulled up.

HUAWEI ME909s Series LTE LGA Module
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Description of the Application Interfaces

Pin
No.

Pin Name

Pad
Type

Description

Parameter

Min.
(V)

Typ.
(V)

Max.
(V)

Comments

Not connected

USB_DM

I/O

USB Data- defined in
the USB 2.0
Specification

USB_DP

I/O

USB Data+ defined in
the USB 2.0
Specification.

JTAG_TDI

JTAG test data input

VIH

1.17

1.8

1.98

VIL

–0.3

0.63

VOH

0.7x
USIM
_VCC

3.3

VOL

0.2x
USIM
_VCC

VOH

0.7 x
USIM
_VCC

3.3

VOL

0.2 x
USIM
_VCC

VIH

0.65x
USIM
_VCC

3.30

VIL

0.25x
USIM
_VCC

VOH

0.7 x
USIM
_VCC

3.3

VOL

0.2 x
USIM
_VCC

USIM_RESET

USIM_DATA

USIM_CLK

I/O

USIM card reset

USIM card data

USIM card clock

USIM_VCC=
1.8 V or 3.0
V

Reserved

Reserved, please keep
this pin open.

SD_VCC

SD Card power signal.

2.85

3.00

3.15

JTAG_RTCK

JTAG return clock, Pin

VOH

1.35

1.8

2.1

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Hardware Guide

Pin
No.

Pin Name

Pad
Type

Description of the Application Interfaces

Description

Parameter

Min.
(V)

Typ.
(V)

Max.
(V)

for trace connection, it
is a reserved test point
for customers.

VOL

0.45

Comments

Reserved

Reserved, please keep
this pin open.

Reserved

Reserved, please keep
this pin open.

Reserved

Reserved, please keep
this pin open.

Reserved

Reserved, please keep
this pin open.

Reserved

Reserved, please keep
this pin open.

Reserved

Reserved, please keep
this pin open.

100

RESIN_N

Reset module.

VIH

1.62

1.8

1.98

VIL

0.18

The signal is
internally
pulled up.

101

LED_MODE

Mode indicator
current sink
Drive strength: 10 mA

102

ADC_1

Conversion interface for
analog signals to digital
signals

2.5

103

Reserved

Reserved, please keep
this pin open.

104

ADC_2

Conversion interface for
analog signals to digital
signals

2.5

105

GPIO5

I/O

General Purpose I/O
pins.

VOH

1.35

1.8

1.98

VOL

0.45

VIH

1.17

1.8

1.98

The function
of these pins
has not been
defined.

VIL

–0.3

0.63

106

GND

Ground

107

MAIN_ANT

RF main antenna pad

108

GND

Ground

109

GPIO6

I/O

General Purpose I/O

VOH

1.35

1.8

1.98

The function

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Pin
No.

Pin Name

Pad
Type

Description of the Application Interfaces

Description

Parameter

Min.
(V)

Typ.
(V)

Max.
(V)

pins.

VOL

0.45

VIH

1.17

1.8

1.98

VIL

–0.3

0.63

Comments
of these pins
has not been
defined.

110

GND

Ground

111

Not connected

112

GND

Ground

113

GPIO7

I/O

General Purpose I/O
pins

VOH

1.35

1.8

1.98

VOL

0.45

The function
of these pins
has not been
defined.

VIH

1.17

1.8

1.98

VIL

–0.3

0.63

114

GND

Ground

115

AUX_ANT

RF AUX antenna pad

116

GND

Ground

117

Not connected

118

Not connected

119

Not connected

120

Not connected

121

GND

Thermal Ground Pad

122

GND

Thermal Ground Pad

123

GND

Thermal Ground Pad

124

GND

Thermal Ground Pad

125

GND

Thermal Ground Pad

126

GND

Thermal Ground Pad

127

GND

Thermal Ground Pad

128

GND

Thermal Ground Pad

129

GND

Thermal Ground Pad

130

GND

Thermal Ground Pad

131

GND

Thermal Ground Pad

132

GND

Thermal Ground Pad

133

GND

Thermal Ground Pad

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Description of the Application Interfaces

Pin
No.

Pin Name

Pad
Type

Description

Parameter

Min.
(V)

Typ.
(V)

Max.
(V)

Comments

134

GND

Thermal Ground Pad

135

GND

Thermal Ground Pad

136

GND

Thermal Ground Pad

137

GND

Thermal Ground Pad

138

GND

Thermal Ground Pad

139

GND

Thermal Ground Pad

140

GND

Thermal Ground Pad

141

GND

Thermal Ground Pad

142

GND

Thermal Ground Pad

143

GND

Thermal Ground Pad

144

GND

Thermal Ground Pad

145

GND

Thermal Ground Pad



P indicates power pins; PI indicates input power pins; PO indicates output power pins; I
indicates pins for digital signal input; O indicates pins for digital signal output; AI indicates
pins for analog signal input.



VIL indicates Low-level Input voltage; VIH indicates High-level Input voltage; VOL indicates
Low-level Output voltage; VOH indicates High-level Output voltage.



The NC (Not Connected) pins are floating and there are no signal connected to these pins.



The Reserved pins are internally connected to the module. Therefore, these pins should not
be used, otherwise they may cause problems. Please contact with us for more details about
this information.



[1]: PCM_SYNC and PCM_CLK: Output, when ME909s LGA module is used as PCM
master.

3.3 Power Interface
3.3.1 Overview
The power supply part of the ME909s LGA module contains:


VBAT pins for the power supply



VCC_EXT1 pin for external power output with 1.8 V



USIM_VCC pin for USIM card power output



SD_VCC pin for SD card power output

Table 3-2 lists the definitions of the pins on the power supply interface.

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Table 3-2 Definitions of the pins on the power supply interface
Pin No.

Pin
Name

Pad
Type

Description

Parameter

Min.
(V)

Typ.
(V)

Max.
(V)

Comments

Power supply input for
RF.
12 and 13

VBAT

The rising time of
VBAT must be greater
than 100 µs

3.2

3.8

4.2

VCC_EXT1

1.8 V Power output

1.62

1.8

1.98

1.75

1.8

1.98

USIM_VCC=
1.8 V

2.75

3.0

3.3

USIM_VCC=
3.0 V

USIM_VCC

Power supply for
USIM card

SD_VCC

SD Card Power.

2.85

3.00

3.15

48, 50, 52,
54, 56, 58,
59, 106,
108, 110,
112, 114
and 116

GND

121–145

GND

Thermal Ground Pad

3.3.2 Power Supply VBAT Interface
When the ME909s LGA module works normally, power is supplied through the VBAT
pins and the voltage ranges from 3.2 V to 4.2 V (typical value: 3.8 V). The 145-pin
LGA provides two VBAT pins and GND pins for external power input. To ensure that
the ME909s LGA module works normally, all the pins must be used efficiently.
When the ME909s LGA module is used for different external applications, pay special
attention to the design for the power supply. When the ME909s LGA module works at
2G mode and transmits signals at the maximum power, the transient current may
reach the transient peak value of about 2.75 A due to the differences in actual network
environments. In this case, the VBAT voltage drops. If you want wireless good
performance, please make sure that the voltage does not decrease below 3.2 V in any
case. Otherwise, exceptions such as restart of the ME909s LGA module may occur.
A low-dropout (LDO) regulator or switch power with current output of more than 3 A is
recommended for external power supply. Furthermore, five 220 µF or above energy
storage capacitors are connected in parallel at the power interface of the ME909s LGA
module. In addition, to reduce the impact of channel impedance on voltage drop, you
are recommended to try to shorten the power supply circuit of the VBAT interface.
It is recommended that customers add the EMI ferrite bead (FBMJ1608HS280NT
manufactured by TAIYO YUDEN or MPZ1608S300ATAH0 manufactured by TDK is
recommended) to directly isolate DTE from DCE in the power circuit. Figure 3-3
shows the recommended power circuit of ME909s LGA module.

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Figure 3-3 Recommended power circuit of ME909s LGA module

When the system power restarts, a discharge circuit is recommended to make sure
the power voltage drops below 1.8 V and stays for 100 ms at least. If
POWER_ON_OFF is asserted when the VBAT ranges from 1.8 V to 3.2 V, the module
may enter an unexpected status.
Figure 3-4 Power supply time sequence for power cycling

Parameter

Remarks

Time (Min.)

Unit

Toff

Power off time

100

The rising time of VBAT should be 100 µs at least.

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3.3.3 Output Power Supply Interface
Output power supply interfaces are VCC_EXT, USIM_VCC and SD_VCC.
Through the VCC_EXT, the module can supply 1.8 V power externally with an output
current of 10 mA (typical value) for external level conversion or other applications. If
the module is in power down mode, the output power supply is in the disabled state.
Through the USIM_VCC, the module can supply 1.8 V or 3.0 V power to the USIM
card.
The SD_VCC is SD card power that only used for debugging. Please reserve the test
point.

3.4 Signal Control Interface
3.4.1 Overview
The signal control part of the interface on the ME909s LGA module consists of the
following:


Power-on/off (POWER_ON_OFF) pin



System reset (RESIN_N) pin



WAKEUP_IN signal (WAKEUP_IN) pin



WAKEUP_OUT signal (WAKEUP_OUT) pin



SLEEP_STATUS signal (SLEEP_STATUS) pin



LED signal (LED_MODE) pin



USIM_DET signal (USIM_DET) pin

Table 3-3 lists the pins on the signal control interface.
Table 3-3 Definitions of the pins on the signal control interface
Pin
No.

Pin Name

Pad
Type

Description

Parameter

Min.
(V)

Typ.
(V)

Max.
(V)

Comments

POWER_ON_OFF

System power-on
and power-off

VIH

1.62

1.8

1.98

VIL

0.18

The signal is
internally
pulled up.

VIH

1.62

1.8

1.98

VIL

0.18

The signal is
internally
pulled up。

VIH

1.17

1.8

1.98

VIL

–0.3

0.63

100

RESIN_N

WAKEUP_IN[1]

Reset module.

Sleep authorization
signal
H: Sleep mode is
disabled
L: Sleep mode is
enabled (default
value)

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Pin
No.

Pin Name

Pad
Type

Description

Parameter

Min.
(V)

Typ.
(V)

Max.
(V)

Comments

WAKEUP_OUT[2]

Module to wake up
the host.

VOH

1.35

1.8

1.98

VOL

0.45

VOH

1.35

1.8

1.98

VOL

0.45

VIH

1.62

1.8

1.98

VIL

0.18

The signal is
internally
pulled up.
Keep
USIM_DET
floating, if it
is not used.

H: Wake up the
host, the module
hold 1s
high-level-voltage
pulse and then
output
low-level-voltage
L: Do not wake up
the host (default
value)
15

SLEEP_STATUS[3]

Sleep status
indicator
H: Module is in
wake state
L: Module is in
sleep state

101

LED_MODE

Mode indicator
current sink Drive
strength: 10 mA

USIM_DET

USIM hot swap
detection pin.
When it is High,
USIM is present.
When it is Low,
USIM is absent.



[1]: The WAKEUP_IN pin can be used to wake up the module.



[2]: WAKEUP_OUT: When the module is not in sleep mode, this pin's drive current is 4 mA.
When the module is in sleep mode, this pin's output level is low and drive current
smaller than 0.1 mA. The resistance is maintained at 5 kΩ–15 kΩ, as shown in Figure
3-5 . The output level may be changed if there is a stronger pull-up. It is
recommended that customers take Figure 3-12 for reference to design their circuit.



[3]: SLEEP_STATUS: When the module is not in sleep mode, this pin's drive current is 4
mA.
When the module is in sleep mode, this pin's output level is low and drive current
smaller than 0.1 mA. The resistance is maintained at 5 kΩ–15 kΩ, as shown in Figure
3-5 . The output level may be changed if there is a stronger pull-up. It is
recommended that customers take Figure 3-13 for reference to design their circuit.

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Figure 3-5 Maintaining the resistance in sleep mode

Module
(Modem)

BB Chip
R=5–15 K

3.4.2 Power-on/off Pin
The ME909s LGA module can be controlled to power on/off by the POWER_ON_OFF
pin.
Table 3-4 Two states of POWER_ON_OFF
Item

Pin state

Description

Low (when ME909s
LGA module is in
power off state.)

ME909s LGA module is powered on.

Low (when ME909s
LGA module is in
power on state.)

ME909s LGA module is powered off.

Issue 04 (2016-12-21)

POWER_ON_OFF pin should be pulled down for
1.0s at least.

POWER_ON_OFF pin should be pulled down for
4.0s at least.

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Figure 3-6 Connections of the POWER_ON_OFF pin

Power-On Time Sequence
After VBAT has been applied and is stable, the POWER_ON_OFF signal is pulled
down, and then the module will boot up.
During power on timing, please make sure the VBAT is stable.
Figure 3-7 Power on timing sequence

Table 3-5 Power on timing
Parameter

Comments

Time (Nominal values)

Units

TPON

POWER_ON_OFF turn on time.

> 1.0

TPD+

POWER_ON_OFF valid to USB
D+ high

About 7.0

If the DTE needs to detect the PID/VID of module during the BIOS phase, the
detection time should exceed the TPD+ time.

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Power-Off Time Sequence
Figure 3-8 Power off timing sequence

Table 3-6 Power off timing
Parameter

Comments

Time (Nominal values)

Units

TPOFF

POWER_ON_OFF turn off time.

> 4.0

TPD+

POWER_ON_OFF valid to USB
D+ low

> 4.0

3.4.3 RESIN_N
The RESIN_N pin is used to reset the module's system. When the software stops
responding, the RESIN_N pin can be pulled down to reset the hardware.
Figure 3-9 Connections of the RESIN_N pin

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As the RESIN_N and POWER_ON_OFF signals are relatively sensitive, it is
recommended that you install a 10 nF–0.1 µF capacitor near the RESIN_N and
POWER_ON_OFF pins of the interface for filtering. In addition, when you design a
circuit on the PCB of the interface board, it is recommended that the circuit length not
exceed 20 mm and that the circuit be kept at a distance of 2.54 mm (100 mil) at least
from the PCB edge. Furthermore, you need to wrap the area adjacent to the signal
wire with a ground wire. Otherwise, the module may be reset due to interference.
The ME909s LGA module supports hardware reset function. If the software of the
ME909s LGA module stops responding, you can reset the hardware through the
RESIN_N signal as shown in Figure 3-10 .When a low-level pulse is supplied through
the RESIN_N pin, the hardware will be reset. After the hardware is reset, the software
starts powering on the module and reports relevant information according to the actual
settings. For example, the AT command automatically reports ^SYSSTART.
Figure 3-10 Reset pulse timing

3.4.4 WAKEUP_IN Signal
WAKEUP_IN pin is the authorization signal of ME909s LGA module entering sleep
mode. If this pin is not connected, it will keep in low level by default.
Table 3-3 shows the definition of the WAKEUP_IN signal.
The module cannot enter sleep mode when this pin is pulled up (1.8 V), and the
module should be waked up when the pin is pulled up.
Figure 3-11 Connections of the WAKEUP_IN pin

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3.4.5 WAKEUP_OUT Signal
The WAKEUP_OUT pin is used to wake up the external devices.


When WAKEUP_OUT pin is in high level, the module can wake up the host.



When WAKEUP_OUT pin is in low level, the module cannot wake up the host.
(default)

Figure 3-12 Connections of the WAKEUP_OUT pin

3.4.6 SLEEP_STATUS Signal
The SLEEP_STATUS pin is used to indicate the sleep status of the module.


When SLEEP_STATUS pin is in high level, the module is in wakeup state.



When SLEEP_STATUS pin is in low level, the module is in sleep state.

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Figure 3-13 Connections of the SLEEP_STATUS pin

3.4.7 LED_MODE Signal
ME909s LGA module provides an LED_MODE signal to indicate the work status.
Table 3-7 State of the LED_MODE pin
No.

Operating Status

LED_MODE

No service/Restricted service

Outputs: low (0.1s)-high (0.1s)-low
(0.1s)-high (1.7s)

2s cycle
2

Outputs: low (0.1s)-high (1.9s)
2s cycle
Outputs: low

Figure 3-14 shows the recommended circuits of LED_MODE. The brightness of LED
can be adjusted by adjusting the resistance of the resistor.

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Figure 3-14 Driving circuit

Module
(DCE)

VBAT

R
LED_MODE

3.4.8 USIM_DET Pin
ME909s LGA module supports USIM hot swap function.
ME909s LGA module provides an input pin (USIM_DET) to detect whether the USIM
card is present or not. This pin is a level trigger pin, and it is internally pulled up. If the
module does not support USIM card hot swap, keep USIM_DET floating.
Table 3-8 Function of the USIM_DET pin
No.

USIM_DET

Function

High level

USIM card insertion.
If the USIM card is present, USIM_DET should be High.

Low level

USIM card removal.
If the USIM card is absent, USIM_DET should be Low.

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Figure 3-15 Connections of the USIM_DET pin
Module
(DCE)

1.8 V

USIM Deck

USIM_DET

BB Chip

1 kΩ

470 pF

CD is a pin detecting of USIM in the USIM socket, in normal, there will be a detect pin
in the USIM socket.



It is recommended not to add a diode on the USIM_DET pin outside the module.



The normal SHORT USIM connector should be employed. The logic of USIM_DET
is shown as Figure 3-16 . High represents that USIM is inserted; Low represents
that USIM is removed.



When USIM is inserted (hot), USIM_DET will change from Low to High;



When USIM is removed (hot), USIM_DET will change from High to Low;



The module will detect the level of USIM_DET to support the hot swap.

Figure 3-16 Logic of USIM_DET

WWAN Module
1.8V
USIM Connector Switch

USIM installed=
Not Connected
USIM not
installed=
GND

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USIM_DET

Modem
Processor

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3.5 UART Interface
3.5.1 Overview
The ME909s LGA module provides the UART0 (8-wire UART) interface for one
asynchronous communication channel. As the UART0 interface supports signal
control through standard modem handshake, AT commands are entered and serial
communication is performed through the UART0 interface. The UART2 (2-wire UART)
interface is provided for only debugging by the ME909s LGA module. The UART have
the following features:


Full-duplex



7-bit or 8-bit data



1-bit or 2-bit stop bit



Odd parity check, even parity check, or non-check



Baud rate clock generated by the system clock



Direct memory access (DMA) transmission



UART0 supports baud rate: 300 bit/s, 600 bit/s, 1200 bit/s, 2400 bit/s ,4800 bit/s,
9600 bit/s, 19200 bit/s, 38400 bit/s, 57600 bit/s, 115200 bit/s (default), 230400
bit/s, 1000000 bit/s, 3000000 bit/s



Baud rate auto adaptive change is supported. AP (Access Point) must choose
one default Baud rate to communicate with module in the beginning.

The 2-wire UART is for debugging only. Customers should layout two test points for
them, which are required for system troubleshooting and analysis.
Table 3-9 UART interface signals
Pin
No.

Pin Name

Pad
Type

Description

Parameter

Min.
(V)

Typ.
(V)

Max.
(V)

Comments

UART0_TX

UART0 transmit output

VOH

1.35

1.8

1.98

VOL

0.45

VIH

1.17

1.8

1.98

VIL

–0.3

0.63

VOH

1.35

1.8

1.98

VOL

0.45

VOH

1.35

1.8

1.98

VOL

0.45

VIH

1.17

1.8

1.98

VIL

–0.3

0.63

VIH

1.17

1.8

1.98

VIL

–0.3

0.63

VOH

1.35

1.8

1.98

UART0_RX

UART0_RING

UART0_RTS

UART0_DTR

UART0_CTS

UART0_DCD

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UART0 receive data
input
UART0 ring indicator

UART0 request to send

UART0 data terminal
ready
UART0 clear to send

UART0

data

carrier

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Pin
No.

Pin Name

Pad
Type

UART0_DSR

UART2_TX

UART2_RX

Description of the Application Interfaces

Description

Parameter

Min.
(V)

Typ.
(V)

Max.
(V)

Comments

detect

VOL

0.45

UART0 data set ready

VOH

1.35

1.8

1.98

VOL

0.45

VOH

1.35

1.8

1.98

Only used for
debugging.

VOL

0.45

VIH

1.17

1.8

1.98

VIL

–0.3

0.63

UART2 transmit output

UART2 receive data
input

Please
reserve this
pin as the
test point.

3.5.2 Circuit Recommended for the UART Interface
Figure 3-17 Connection of the UART interface in the ME909s LGA module (DCE) with
the host (DTE)

The RS-232 chip (must support 921600 bit/s) can be used to connect the module with
UART. In this connection, the CMOS (Complementary Metal Oxide Semiconductor)
logic level and the EIA (Electronic Industries Association) level are converted mutually.

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

The UART cannot wake up the module from the sleep status, and you can pull up the
WAKEUP_IN signal for 1s instead.



It is recommended to set the pins related to UART2 interface as test points on the DTE
board for debugging. The level of RS-232 transceivers must match that of the ME909s LGA
module.

3.6 USB Interface
The ME909s LGA module is compliant with USB 2.0 High speed protocol. The USB
interface is powered directly from the VBAT supply. The USB signal lines are
compatible with the USB 2.0 signal specifications. Figure 3-18 shows the circuit of the
USB interface.
Table 3-10 Definition of the USB interface
Pin
No.

Pin
Name

Pad
Type

Description

Parameter

Min.
(V)

Typ.
(V)

Max.
(V)

Comments

USB_DM

I/O

USB Data- defined in the
USB 2.0 Specification

USB_DP

I/O

USB Data+ defined in the
USB 2.0 Specification

According to USB protocol, for bus timing or electrical characteristics of ME909s LGA
USB signal, please refer to the chapter 7.3.2 of Universal Serial Bus Specification 2.0.
Figure 3-18 Recommended circuit of USB interface



USB_DM and USB_DP are required to control the differential impedance 90 Ω (±10%).



The length of the gap between USB_DM and USB_DP should not exceed 5 mil.

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

The USB differential signal trace must be as short as possible, and laid out away from
high-speed clock signals and other periodic signals as far as possible.



Minimize through-holes and turning angles on the USB signal trace to reduce signal
reflection and impedance change.



Do not route the USB signal trace under the following components: crystal, oscillator, clock
circuit, electromagnetic component, and IC that uses or generates clocks.



Avoid stubs on the USB signal trace because stubs generate reflection and affect the signal
quality.



Route the USB signal trace on a complete reference plane (GND) and avoid crossing
inter-board gaps because inter-board gaps cause a large reflow channel area and increase
inductance and radiation. In addition, avoid signal traces on different layers.



The USB signal trace must be far away from core logical components because the high
current pulse generated during the state transitions process of core components may
impose interference on signals.



The USB signal trace must be far away from board edges with a minimum distance of 20 × h
(h indicates the vertical distance between the trace and the reference layer) to avoid signal
radiation.



C1 and C2 are ready for dealing with filter differential mode interference and C3 is ready for
dealing with filter common mode interference. You can choose the value of the C1, C2 and
C3 according to the actual PCB which is integrated 30 mm × 30 mm LGA module

3.7 USIM Card Interface
3.7.1 Overview
The ME909s LGA module provides a USIM card interface complying with the ISO
7816-3 standard and supports both Class B and Class C USIM cards.
Table 3-11 USIM card interface signals
Pin
No.

Pin Name

USIM_RESET

USIM_DATA

Issue 04 (2016-12-21)

Pad
Type

I/O

Description

Parameter

Min.(V)

Typ.(V)

Max.(V)

VOH

0.7 x
USIM_V
CC

3.3

VOL

0.2 x
USIM_V
CC

VOH

0.7 x
USIM_V
CC

3.3

VOL

0.2 x
USIM_V
CC

VIH

0.65 x
USIM_V
CC

3.30

USIM card
reset

USIM card
data

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Comments

USIM_VCC=
1.8 V or 3.0 V

HUAWEI ME909s Series LTE LGA Module
Hardware Guide

Pin
No.

Pin Name

USIM_CLK

Pad
Type

Description

Parameter

Min.(V)

Typ.(V)

Max.(V)

VIL

0.25 x
USIM_V
CC

VOH

0.7 x
USIM_V
CC

3.3

0.2 x
USIM_V
CC

1.75

1.8

1.98

USIM_VCC=
1.8 V

2.75

3.0

3.3

USIM_VCC=
3.0 V

1.62

1.8

1.98

USIM card
clock
VOL

USIM_VCC

USIM_DET

Power supply
for USIM card

USIM hot
swap
detection pin.
When it is
High, USIM is
present.

Description of the Application Interfaces

Comments

USIM_VCC=
1.8 V or 3.0 V

VIH

VIL

0.18

When it is
Low, USIM is
absent.

The signal is
internally
pulled up.
Keep
USIM_DET
floating, if it is
not used.

3.7.2 Circuit Recommended for the USIM Card Interface
As the ME909s LGA module is not equipped with a USIM socket, you need to place a
USIM socket on the user interface board. Figure 3-19 shows the circuit of the USIM
card interface.

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Figure 3-19 Circuit of the USIM card interface
ESD protection

Module
(DCE)

1 kΩ

USIM-DET

0Ω

USIM-VCC
USIM

0Ω

USIM-CLK

0Ω

USIM-DATA

0Ω

USIM-RESET

470 pF

33 pF 33 pF 33 pF

1 µF

33 pF



To meet the requirements of 3GPP TS 51.010-1 protocols and electromagnetic
compatibility (EMC) authentication, the USIM socket should be placed near the
LGA interface (it is recommended that the PCB circuit connects the LGA interface
and the USIM socket does not exceed 100 mm), because a long circuit may lead to
wave distortion, thus affecting signal quality.



It is recommended that you wrap the area adjacent to the USIM_CLK and
USIM_DATA signal wires with ground. The Ground pin of the USIM socket and the
Ground pin of the USIM card must be well connected to the power Ground pin
supplying power to the ME909s LGA module.



A 100 nF capacitor and 1 μF capacitor are placed between the USIM_VCC and
GND pins in a parallel manner (If USIM_VCC circuit is too long, that the larger
capacitance such as 4.7 μF can be employed if necessary). Three 33 pF
capacitors are placed between the USIM_DATA and Ground pins, the
USIM_RESET and Ground pins, and the USIM_CLK and Ground pins in parallel to
filter interference from RF signals.



It is recommended to take electrostatic discharge (ESD) protection measures near
the USIM card socket. The TVS diode with Vrwm of 5 V and junction capacitance
less than 10 pF must be placed as close as possible to the USIM socket, and the
Ground pin of the ESD protection component is well connected to the power
Ground pin that supplies power to the ME909s LGA module.



It is recommended to place a 1 kΩ resistor in series on the USIM_DET interface for
ESD protection if USIM_DET is used.

3.8 Audio Interface
ME909s LGA module provides one PCM digital audio interface. Table 3-12 lists the
signals on the digital audio interface.

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Table 3-12 Signals on the digital audio interface
Pin
No.

Pin Name

Pad Type

Description

Parameter

Min.
(V)

Typ.
(V)

Max.
(V)

Comments

PCM_SYNC

PCM sync

VOH

1.35

1.8

1.98

VOL

0.45

VIH

1.17

1.8

1.98

VIL

–0.3

0.63

VOH

1.35

1.8

1.98

VOL

0.45

VOH

1.35

1.8

1.98

VOL

0.45

PCM_DIN

PCM_DOUT

PCM_CLK

PCM data in

PCM data out

PCM clock

The ME909s LGA PCM interface enables communication with an external codec to
support linear format.
Figure 3-20 Circuit diagram of the interface of the PCM (ME909s LGA module is used as
PCM master)

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Figure 3-21 Circuit diagram of the interface of the PCM (ME909s LGA module is used as
PCM slave)



The signal level of CODEC must match that of the module.



ME909s LGA module supports both master and slave mode.



PCM_CLK: Output when PCM is in master mode; Input when PCM is in slave mode.



PCM_SYNC: Output when PCM is in master mode; Input when PCM is in slave mode.



It is recommended that a TVS be used on the related interface, to prevent electrostatic
discharge and protect integrated circuit (IC) components.

3.9 GPIO Interface
The ME909s LGA module provides GPIO pins for customers to use as controlling
signals which are worked at 1.8 V CMOS logic levels. Customers can use AT
command to control the state of logic levels of GPIO output signal. See the HUAWEI
ME909s Series LTE Module AT Command Interface Specification.
Table 3-13 Signals on the GPIO interface
Pin
No.

Pin Name

Pad
Type

Description

Parameter

Min.
(V)

Typ.
(V)

Max.
(V)

Comments

GPIO5/USIM
Switch

I/O

General Purpose I/O
pins (Default) or
USIM Switch control
signal.

VOH

1.35

1.8

1.98

VOL

0.45

VIH

1.17

1.8

1.98

VIL

–0.3

0.63

The function of
this pin can be
defined as
GPIO or USIM
Switch, while
the USIM
Switch should
be enabled by
AT command.

VOH

1.35

1.8

1.98

The function of

113

GPIO3

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I/O

General Purpose I/O

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Pin
No.

105

109

Pin Name

GPIO2

Pad
Type

I/O

GPIO1

I/O

GPIO4

I/O

GPIO1

I/O

GPIO2

I/O

Description of the Application Interfaces

Description

Parameter

Min.
(V)

Typ.
(V)

Max.
(V)

Comments

pins (Default)

VOL

0.45

VIH

1.17

1.8

1.98

these pins has
not been
defined.

VIL

–0.3

0.63

VOH

1.35

1.8

1.98

VOL

0.45

VIH

1.17

1.8

1.98

VIL

–0.3

0.63

VOH

1.35

1.8

1.98

VOL

0.45

VIH

1.17

1.8

1.98

VIL

–0.3

0.63

VOH

1.35

1.8

1.98

VOL

0.45

VIH

1.17

1.8

1.98

VIL

–0.3

0.63

VOH

1.35

1.8

1.98

VOL

0.45

VIH

1.17

1.8

1.98

VIL

–0.3

0.63

VOH

1.35

1.8

1.98

VOL

0.45

VIH

1.17

1.8

1.98

VIL

–0.3

0.63

General Purpose I/O
pins.

When the GPIO interface is used for input, the module will not respond in sleep mode
(it will resume response after being waken up from sleep mode by the WAKEUP_IN
pin) and the module is configured to pull-down inside. In sleep mode, the pull-down
resistance is 5 kΩ–15 kΩ. For the peripheral circuits, see Figure 3-22 .

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Figure 3-22 Reference peripheral circuits when the GPIO interface is used for input

When the GPIO interface is used for output and the module is not in sleep mode, the
drive current is 4 mA. When the module is in sleep mode, the drive current is small er
than 0.1 mA. The resistance is maintained at 5 kΩ–15 kΩ, as shown in Figure 3-23 .
The output level may be changed if there is a stronger pull-up or pull-down. For the
peripheral circuits, see Figure 3-24 .
Figure 3-23 Maintaining the resistance in sleep mode

Module
(Modem)

Module
(Modem)
1.8 V
BB Chip

BB Chip

Low output level in sleep mode

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High output level in sleep mode

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Figure 3-24 Reference peripheral circuits when the GPIO interface is used for output

GPIO

3.10 ADC Interface
The ME909s LGA module provides two ADC interfaces. Customers can query their
voltage through AT^ADCREADEX command. For details, you can see HUAWEI
ME909s Series LTE Module AT Command Interface Specification.
Table 3-14 Signals on the ADC interface
PIN
No.

Pin Name

Pad
Type

Description

Min.
(V)

Typ.
(V)

Max.
(V)

Comments

102

ADC_1

Conversion interface for analog
signals to digital signals

2.5

104

ADC_2

Conversion interface for analog
signals to digital signals

2.5

3.11 JTAG Interface
The ME909s LGA module provides Joint Test Action Group (JTAG) interface. Table
3-15 shows the signals on the JTAG interface. It is recommended that route out the 6
pins as test points on the DTE for tracing and debugging.

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Table 3-15 Signals on the JTAG interface
Pin
No.

Pin Name

Pad
Type

Description

Parameter

Min.
(V)

Typ.
(V)

Max.
(V)

Comments

JTAG_TMS

JTAG test mode
select

VIH

1.17

1.8

1.98

VIL

–0.3

0.63

VIH

1.17

1.8

1.98

VIL

–0.3

0.63

VIH

1.17

1.8

1.98

VIL

–0.3

0.63

VOH

1.35

1.8

1.98

VOL

0.45

VIH

1.17

1.8

1.98

VIL

–0.3

0.63

VOH

1.35

1.8

2.1

VOL

0.45

JTAG_TRST_N

JTAG_TCK

JTAG_TDO

JTAG_TDI

JTAG_RTCK

JTAG reset

JTAG clock input

JTAG test data output

JTAG test data input

JTAG return clock,
Pin for trace
connection, it is a
reserved test point for
customers.

3.12 RF Antenna Interface
The ME909s LGA module provides two antenna pads (MAIN_ANT and AUX_ANT) for
connecting the external antennas.
Table 3-16 Definition of the antenna pads
Pin
No.

Pin Name

Pad
Type

Description

Parameter

Min.
(V)

Typ.
(V)

Max.
(V)

Comments

107

MAIN_ANT

RF MAIN antenna pad

115

AUX_ANT

RF AUX antenna pad

Route the antenna pad as close as possible to antenna connector. In addition, the
impedance of RF signal traces must be 50 Ω.

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Figure 3-25 RF signal trace design about MAIN_ANT for reference (the same for
AUX_ANT)

Figure 3-26 RF signal layout design about MAIN_ANT for reference (the same for
AUX_ANT)

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For the PCB designed by the user, the impedance of all the RF signal tracks must be
50 Ω. Generally, the impedance depends on the medium factor, track width, and
distance from the floor.
In order to reflect the rules of design, the following figures indicate the complete
structure of the microstrip and stripline with an impedance of 50 Ω as well as the
reference design for stack.
Figure 3-27 Complete structure of the microstrip

Figure 3-28 Complete structure of the stripline

Figure 3-29 Pad for the RF interface

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Figure 3-30 RF Pad design for ME909s LGA

Please use impedance simulation tool to calculate RF MAIN pad impedance. The RF
MAIN pad dimension of the module is 1.1 mm (L) x 0.9 mm (W). You can get the
impedance with lower than 50 Ω calculated by the impedance simulation tool. Since
the target impedance is 50 Ω for RF trace, the recommended solution is that to carve
out the copper area of the second layer that projected by the RF MAIN pad at top
layer. How many layers should be carved out depend on the PCB permittivity, track
width, and distance from the floor of your own PCB. Our target is to make the RF
MAIN pad impedance as closer to 50 Ω as possible.

3.13 Reserved Interface
The ME909s LGA module provides some reserved pins. All reserved pins cannot be
used by the customer.
Table 3-17 Reserved pin
Pin No.

Pin
Name

Pad
Type

Description

Parameter

Min.
(V)

Typ.
(V)

Max.
(V)

Comments

1-4,14, 16-24, 27,
31, 33, 35, 37, 44,
45, 60–65, 91,
94–99 and 103

Reserved

Reserved,
please keep
this pin open.

3.14 NC Interface
The ME909s LGA module provides some NC pins. All NC pins should not be
connected. Please keep these pins open.

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Table 3-18 NC pin
Pin No.

Pin
Name

Pad
Type

Description

Parameter

Min.
(V)

Typ.
(V)

Max.
(V)

Comments

25, 26, 38–41,
47, 82–84, 111,
117–120

Not connected

3.15 Test Points Design
In the process of debugging when the module is embedded into the integrated
equipment, test points play an important role. Some problems related to the module
can be quickly resolved when test points are properly designed.
1.

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The test points below must be designed in the customer board:
−

JTAG test points: It is the most common method of debugging.

−

USB test points: USB is the most important communication channel between
module and AP (host). Not only test points should be placed, but also a 0 ohm
series resistor should be placed on USB_D+/USB_D- signal. The resistor can
be welded off when necessary, then the USB of module is cut off from AP and
can be connected to PC to do some analyses.

−

POWER_ON_OFF, RESIN_N: They are some of the most important signals,
test points should be placed.

−

UART2: UART2 is used for printing the log information.

−

SD signals: SD signals are used for debugging.

−

VBAT: Not only test points should be placed, but also a series magnetic bead
should be placed on VBAT signal. The magnetic bead can be welded off when
necessary, then the power of module is cut off from customer board and can
be connected to external power to do analyses about problems related to
power interference.

−

VCC_EXT1: to judge whether the module is powered on or not, just test the
VCC_EXT1.

The test points below should be placed according to the requirement in the
customer board: ADC, SLEEP_STATUS, GPIO, PCM, SIM, UART2,
WAKEUP_IN and WAKEUP_OUT, except the two cases below:
−

The corresponding signal is not used.

−

The corresponding signal is used, but there is already someplace else can be
tested, such as SIM socket pin.

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RF Specifications

4.1 About This Chapter
This chapter describes the RF specifications of the ME909s LGA module, including:


Operating Frequencies



Conducted RF Measurement



Conducted Rx Sensitivity and Tx Power



Antenna Design Requirements



Suggestions about LTE and 2.4 GHz Wi-Fi Co-existence

4.2 Operating Frequencies
Table 4-1 and Table 4-2 show the RF bands supported by ME909s LGA module.
Table 4-1 RF bands of the ME909s-821 LGA module
Operating Band

UMTS Band 1

1920 MHz–1980 MHz

2110 MHz–2170 MHz

UMTS Band 5

824 MHz–849 MHz

869 MHz–894 MHz

UMTS Band 8

880 MHz–915 MHz

925 MHz–960 MHz

UMTS Band 9

1749.9 MHz–1784.9 MHz

1844.9 MHz–1879.9 MHz

GSM 900

880 MHz–915 MHz

925 MHz–960 MHz

GSM 1800

1710 MHz–1785 MHz

1805 MHz–1880 MHz

LTE Band 1

1920 MHz–1980 MHz

2110 MHz–2170 MHz

LTE Band 3

1710 MHz–1785 MHz

1805 MHz–1880 MHz

LTE Band 8

880 MHz–915 MHz

925 MHz–960 MHz

LTE Band 38

2570 MHz–2620 MHz

LTE Band 39

1880 MHz–1920 MHz

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Operating Band

LTE Band 40[1]

2300 MHz–2400 MHz

LTE Band 41

[2]

2496 MHz–2690 MHz

TD-SCDMA Band 34

2010 MHz–2025 MHz

TD-SCDMA Band 39

1880 MHz–1920 MHz



[1]: The module may not meet the RF performance requirements at frequency 2390–2400
MHz in the LTE B40 band.



[2]: The module may not meet the RF performance requirements at frequency 2496–2555
MHz or 2655–2690 MHz in the LTE B41 band.

Table 4-2 RF bands of the ME909s-120 LGA module
Operating Band

UMTS Band 1

1920 MHz–1980 MHz

2110 MHz–2170 MHz

UMTS Band 2

1850 MHz–1910 MHz

1930 MHz–1990 MHz

UMTS Band 5

824 MHz–849 MHz

869 MHz–894 MHz

UMTS Band 8

880 MHz–915 MHz

925 MHz–960 MHz

GSM 850

824 MHz–849 MHz

869 MHz–894 MHz

GSM 900

880 MHz–915 MHz

925 MHz–960 MHz

GSM 1800

1710 MHz–1785 MHz

1805 MHz–1880 MHz

GSM 1900

1850 MHz–1910 MHz

1930 MHz–1990 MHz

LTE Band 1

1920 MHz–1980 MHz

2110 MHz–2170 MHz

LTE Band 2

1850 MHz–1910 MHz

1930 MHz–1990 MHz

LTE Band 3

1710 MHz–1785 MHz

1805 MHz–1880 MHz

LTE Band 4

1710 MHz–1755 MHz

2110 MHz–2155 MHz

LTE Band 5

824 MHz–849 MHz

869 MHz–894 MHz

LTE Band 7

2500 MHz–2570 MHz

2620 MHz–2690 MHz

LTE Band 8

880 MHz–915 MHz

925 MHz–960 MHz

LTE Band 20

832 MHz–862 MHz

791 MHz–821 MHz

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4.3 Conducted RF Measurement
4.3.1 Test Environment
Test instrument

R&S CMU200, R&S CMW500, Agilent E5515C, Starpoint
SP6010

Power supply

KEITHLEY 2306; Aglient66319D

RF cable for testing

L08-C014-350 of DRAKA COMTEQ or Rosenberger
Cable length: 29 cm



The compensation for different frequency bands relates to the cable and the test
environment.



The instrument compensation needs to be set according to the actual cable conditions.

4.3.2 Test Standards
Huawei modules meet 3GPP test standards. Each module passes strict tests at the
factory and thus the quality of the modules is guaranteed.

4.4 Conducted Rx Sensitivity and Tx Power
4.4.1 Conducted Receive Sensitivity
The conducted receive sensitivity is a key parameter that indicates the receiver
performance of ME909s LGA module.
Table 4-3 and Table 4-4 list the typical tested values of the ME909s LGA module.
Table 4-3 ME909s-821 LGA module conducted Rx sensitivity
Band

Test Value
(Unit: dBm)

Note

GSM 900

–109

BER Class II < 2.44%

GSM 1800

–107

BER Class II < 2.44%

UMTS Band 1

–110.5

BER < 0.1%

UMTS Band 5

–110.5

BER < 0.1%

UMTS Band 8

–110.5

BER < 0.1%

UMTS Band 9

–110.5

BER < 0.1%

LTE Band 1

–103

FDD QPSK throughput > 95%,
10 MHz Bandwidth

LTE Band 3

–102.5

FDD QPSK throughput > 95%,
10 MHz Bandwidth

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Test Value

Band

Note

(Unit: dBm)

LTE Band 8

–102.5

FDD QPSK throughput > 95%,
10 MHz Bandwidth

LTE Band 38

–101.5

TDD QPSK throughput > 95%,
10 MHz Bandwidth

LTE Band 39

–102

TDD QPSK throughput > 95%,
10 MHz Bandwidth

LTE Band 40

–101

TDD QPSK throughput > 95%,
10 MHz Bandwidth

LTE Band 41

–101

TDD QPSK throughput > 95%,
10 MHz Bandwidth

TD-SCMDA Band 34

–112

BER < 0.1%

TD-SCMDA Band 39

–112.5

BER < 0.1%

Table 4-4 ME909s-120 LGA module conducted Rx sensitivity
Band

Test Value
(Unit: dBm)

Note

GSM 850

–109

BER Class II < 2.44%

GSM 900

–109

BER Class II < 2.44%

GSM 1800

–108.5

BER Class II < 2.44%

GSM 1900

–109

BER Class II < 2.44%

UMTS Band 1

–111.5

BER < 0.1%

UMTS Band 2

–111.5

BER < 0.1%

UMTS Band 5

–111.5

BER < 0.1%

UMTS Band 8

–111.5

BER < 0.1%

LTE Band 1

–102.5

Throughput ≥ 95%, 10 MHz Bandwidth

LTE Band 2

–102.5

Throughput ≥ 95%, 10 MHz Bandwidth

LTE Band 3

–102

Throughput ≥ 95%, 10 MHz Bandwidth

LTE Band 4

–102

Throughput ≥ 95%, 10 MHz Bandwidth

LTE Band 5

–102.5

Throughput ≥ 95%, 10 MHz Bandwidth

LTE Band 7

–102.5

Throughput ≥ 95%, 10 MHz Bandwidth

LTE Band 8

–102.5

Throughput ≥ 95%, 10 MHz Bandwidth

LTE Band 20

–102.5

Throughput ≥ 95%, 10 MHz Bandwidth

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

The test values are the average of some test samples.



LTE sensitivity is tested in SIMO (Main + AUX).

4.4.2 Conducted Transmit Power
The conducted transmit power is another indicator that measures the performance of
ME909s LGA module. The conducted transmit power refers to the maximum power
that the module tested at the antenna pad can transmit. According to the 3GPP
protocol, the required transmit power varies with the power class.
Table 4-5 and Table 4-6 list the required ranges of the conducted transmit power of
ME909s LGA module.
Table 4-5 ME909s-821 LGA module conducted Tx power
Band

Typical Value (Unit: dBm)

Note (Unit: dB)

GMSK (1Tx Slot)

32.5

±1.5

8PSK (1Tx Slot)

±1.5

GMSK (1Tx Slot)

29.5

±1.5

8PSK (1Tx Slot)

±1.5

UMTS Band 1

23.5

±1

UMTS Band 5

23.5

±1

UMTS Band 8

23.5

±1

UMTS Band 9

23.5

±1

TD-SCDMA Band 34

23.5

±1

TD-SCDMA Band 39

23.5

±1

TDD LTE Band 38

±1.5

TDD LTE Band 39

±1.5

TDD LTE Band 40

±1.5

TDD LTE Band 41

±1.5

FDD LTE Band 1

±1.5

FDD LTE Band 3

±1.5

FDD LTE Band 8

±1.5

GSM 900

GSM 1800

Table 4-6 ME909s-120 LGA module conducted Tx power
Band
GSM 850

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GMSK (1Tx Slot)

Typical Value (Unit: dBm)

Note (Unit: dB)

32.5

±1.5

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Band

RF Specifications

Typical Value (Unit: dBm)

Note (Unit: dB)

8PSK (1Tx Slot)

±1.5

GMSK (1Tx Slot)

32.5

±1.5

8PSK (1Tx Slot)

±1.5

GMSK (1Tx Slot)

29.5

±1.5

8PSK (1Tx Slot)

±1.5

GMSK (1Tx Slot)

29.5

±1.5

8PSK (1Tx Slot)

±1.5

UMTS Band 1

23.5

±1

UMTS Band 2

23.5

±1

UMTS Band 5

23.5

±1

UMTS Band 8

23.5

±1

LTE Band 1

±1.5

LTE Band 2

±1.5

LTE Band 3

±1.5

LTE Band 4

±1.5

LTE Band 5

±1.5

LTE Band 7

±1.5

LTE Band 8

±1.5

LTE Band 20

±1.5

GSM 900

GSM 1800

GSM 1900

Maximum Power Reduction (MPR and AMPR) of LTE is according to 3GPP TS 36.521-1.

4.5 Antenna Design Requirements
4.5.1 Antenna Design Indicators
Antenna Efficiency
Antenna efficiency is the ratio of the input power to the radiated or received power of
an antenna. The radiated power of an antenna is always lower than the input power
due to the following antenna losses: return loss, material loss, and coupling loss. The
efficiency of an antenna relates to its electrical dimensions. To be specific, the
antenna efficiency increases with the electrical dimensions. In addition, the
transmission line from the antenna port of ME909s LGA to the antenna is also part of

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the antenna. The line loss increases with the line length and the frequency. It is
recommended that the line loss is as low as possible.
The following antenna efficiency (free space) is recommended for ME909s LGA to
ensure high radio performance of the module:


Efficiency of the primary antenna: ≥ 40% (below 960 MHz); ≥ 50% (over 1710
MHz)



Efficiency of the diversity antenna: ≥ half of the efficiency of the primary
antenna in receiving band

In addition, the efficiency should be tested with the transmission line.

S11 (VSWR）
S11 indicates the degree to which the input impedance of an antenna matches the
reference impedance (50 Ω). S11 shows the resonance feature and impedance
bandwidth of an antenna. Voltage standing wave ratio (VSWR) is another expression
of S11. S11 relates to the antenna efficiency. S11 can be measured with a vector
analyzer.
The following S11 value is recommended for the antenna of ME909s LGA module:


S11 of the primary antenna: ≤ –6 dB



S11 of the diversity antenna: ≤ –6 dB

In addition, S11 is less important than the efficiency, and S11 has weak correlation to
wireless performance.

Isolation
For a wireless device with multiple antennas, the power of different antennas is
coupled with each other. Antenna isolation is used to measure the power coupling.
The power radiated by an antenna might be received by an adjacent antenna, which
decreases the antenna radiation efficiency and affects the running of other devices. To
avoid this problem, evaluate the antenna isolation as sufficiently as possible at the
early stage of antenna design.
Antenna isolation depends on the following factors:


Distance between antennas



Antenna type



Antenna direction

The primary antenna must be placed as near as possible to the ME909s LGA to
minimize the cable length. The diversity antenna needs to be installed
perpendicularly to the primary antenna. The diversity antenna can be placed farther
away from the ME909s LGA. Antenna isolation can be measured with a two-port
vector network analyzer.
The following antenna isolation is recommended for the antennas on laptops:


Isolation between the primary and diversity antennas: ≤ –12 dB



Isolation between the primary (diversity) antenna and the Wi-Fi antenna: ≤
–15 dB

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Polarization
The polarization of an antenna is the orientation of the electric field vector that rotates
with time in the direction of maximum radiation.
The linear polarization is recommended for the antenna of ME909s LGA.

Radiation Pattern
The radiation pattern of an antenna reflects the radiation features of the antenna in the
remote field region. The radiation pattern of an antenna commonly describes the
power or field strength of the radiated electromagnetic waves in various directions
from the antenna. The power or field strength varies with the angular coordinates (θ
and φ), but is independent of the radial coordinates.
The radiation pattern of half wave dipole antennas is omnidirectional in the horizontal
plane, and the incident waves of base stations are often in the horizontal plane. For
this reason, the receiving performance is optimal.
The following radiation patterns are recommended for the antenna of ME909s LGA.
Primary/diversity antenna: omnidirectional
In addition, the diversity antenna’s pattern should be complementary with the primary
antenna's pattern.

Gain and Directivity
The radiation pattern of an antenna represents the field strength of the radiated
electromagnetic waves in all directions, but not the power density that the antenna
radiates in the specific direction. The directivity of an antenna, however, measures the
power density that the antenna radiates.
Gain, as another important parameter of antennas, correlates closely to the directivity.
The gain of an antenna takes both the directivity and the efficiency of the antenna into
account. The appropriate antenna gain prolongs the service life of relevant batteries.
The following antenna gain is recommended for ME909s LGA.
Gain of the primary/diversity antenna ≤ 2.5 dBi

ECC of the Antenna
ECC is short for Envelope Correlation Coefficient. It is the cross-correlation value of
the complex patterns of the master and diversity antenna. It indicates how similar the
magnitude and the phase patterns of the two antennas are. If two antennas have no
similarity, the ECC should be zero. Actually, the less ECC, the better diversity
performance.
The following ECC is recommended for ME909s LGA module.


ECC ≤ 0.5 (working frequency below 0.96 GHz)



ECC ≤ 0.3 (working frequency above 1.4 GHz)

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

The antenna consists of the antenna body and the relevant RF transmission line. Take the
RF transmission line into account when measuring any of the preceding antenna indicators.



Huawei cooperates with various famous antenna suppliers who are able to make
suggestions on antenna design, for example, Amphenol, Skycross, etc.

4.5.2 Interference
Besides the antenna performance, the interference on the user board also affects the
radio performance (especially the TIS) of the module. To guarantee high performance
of the module, the interference sources on the user board must be properly controlled.
On the user board, there are various interference sources, such as the LCD, CPU,
audio circuits, and power supply. All the interference sources emit interference signals
that affect the normal operation of the module. For example, the module sensitivity
can be decreased due to interference signals. Therefore, during the design, you need
to consider how to reduce the effects of interference sources on the module. You can
take the following measures: Use an LCD with optimized performance; shield the LCD
interference signals; shield the signal line of the board; or design filter circuits.
Huawei is able to make technical suggestions on radio performance improvement of
the module.

4.5.3 Antenna Requirements
The antenna for ME909s LGA module must fulfill the following requirements:
Table 4-7 ME909s LGA module antenna requirements
Antenna Requirements
Frequency range

Depending on frequency band(s) provided by the network
operator, the customer must use the most suitable
antenna for that/those band(s)

Bandwidth of primary
antenna

ME909s-821
250 MHz in UMTS Band 1; LTE Band 1
170 MHz in GSM 1800; LTE Band 3
70 MHz in UMTS Band 5;
80 MHz in GSM 900; UMTS Band 8; LTE Band 8
130 MHz in UMTS Band 9
50 MHz in LTE Band 38
40 MHz in LTE Band 39
100 MHz in LTE Band 40
194 MHz in LTE Band 41
15 MHz in TD-SCDMA Band 34
40 MHz in TD-SCDMA Band 39
ME909s-120
250 MHz in UMTS Band 1; LTE Band 1
140 MHz in GSM 1900; UMTS Band 2; LTE Band 2
170 MHz in GSM 1800; LTE Band 3

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Antenna Requirements
445 MHz in LTE Band 4
70 MHz in GSM 850; UMTS Band 5; LTE Band 5
190MHz in LTE Band 7
80 MHz in GSM 900; UMTS Band 8; LTE Band 8
71 MHz in LTE Band 20
Bandwidth of
secondary antenna

ME909s-821
60 MHz in UMTS Band 1; LTE Band 1
75 MHz in LTE Band 3
25 MHz in UMTS Band 5
35 MHz in UMTS Band 8; LTE Band 8
30 MHz in UMTS Band 9
50 MHz in LTE Band 38
40 MHz in LTE Band 39
100 MHz in LTE Band 40
194 MHz in LTE Band 41
ME909s-120
60 MHz in UMTS Band 1; LTE Band 1
60 MHz in UMTS Band 2; LTE Band 2
75 MHz in LTE Band 3
45 MHz in LTE Band 4
25 MHz in UMTS Band 5; LTE Band 5
70 MHz in LTE Band 7
35 MHz in UMTS Band 8; LTE Band 8
30 MHz in LTE Band 20

Gain

≤ 2.5 dBi

Impedance

50 Ω

VSWR absolute max

≤ 3:1

VSWR recommended

≤ 2:1

4.6 Suggestions about LTE and 2.4 GHz Wi-Fi Co-existence
4.6.1 Theory Analysis
The band gap between LTE Band 38/40/41 and Wi-Fi (2.4 G) is very narrow just as
shown as below.

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2401MHz

B40 TX/RX

2300MHz

2495MHz

WIFI TX/RX

2400MHz

RF Specifications
2570MHz

2500MHz

2620MHz

B38 TX/RX

B7 uplink

B7 downlink
B41 TX/RX

2496MHz

2690MHz

The two systems interfere with each other because of nonlinear characteristic of LTE
Band 38/40/41 and Wi-Fi transmitter. The main impacts are as follows:
1.

LTE Band transmitter spurious in Wi-Fi Band impacts on the sensitivity of Wi-Fi
receiver.

LTE Band output power can block Wi-Fi receiver.

Wi-Fi transmitter spurious in LTE Band impacts on the sensitivity of LTE Bands.

Wi-Fi output power can block LTE Band receiver.

According to the theoretical analysis, in order to achieve the co-existence between
Wi-Fi and LTE, the rejection between Wi-Fi and LTE Band 41 or Band 40 needs to be
over 60 dB. (The analysis is based on the Wi-Fi chip Broadcom BCM432XX, the
co-existence design depends on the customer’s Wi-Fi chipset specification.)
In fact, the current devices cannot meet this requirement, so we need to increase the isolation
between antennas and disable some channels.

4.6.2 Suggestions about the Interference
These risks have been taken into consideration in the design of the ME909s LGA
module. The system design also should be paid attention:
1.

It is recommended that the system should be added Wi-Fi SAW filter to
guarantee good attenuation in the LTE transmit Band (including Band 38, Band
40, Band 41), otherwise, LTE Band output power will block Wi-Fi receiver.

The good isolation between LTE antenna and Wi-Fi antenna is more than 25 dB.

Two ways above can help to make the isolation to be 60 dB. If they are still not
enough, some channels may need to be disabled.

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5.1 About This Chapter
This chapter describes the electrical and reliability features in the ME909s LGA
module, including:


Absolute Ratings



Operating and Storage Temperatures



Power Supply Features



Reliability Features



EMC and ESD Features

5.2 Absolute Ratings

Table 5-1 lists the absolute ratings for the ME909s LGA module. Using the ME909s
LGA module beyond these conditions may result in permanent damage to the module.
Table 5-1 Absolute ratings
Symbol

Specification

Min.

Max.

Unit

VBAT

External power voltage

–0.3

4.5

Digital input voltage

–0.3

2.3

5.3 Operating and Storage Temperatures
Table 5-2 lists the operating and storage temperatures for the ME909s LGA module.

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Table 5-2 Operating and storage temperatures
Specification

Min.

Max.

Unit

Normal working temperatures

–30

+75

°C

–40

+85

°C

–40

+85

°C

Extended temperatures

[1]

Ambient temperature for storage

[1]: When the ME909s LGA module works in the range from –40°C to –30°C or +75°C to +85°C,
NOT all their RF performances comply with 3GPP specifications.

5.4 Power Supply Features
5.4.1 Input Power Supply
Table 5-3 lists the requirements for input power of the ME909s LGA module.
Table 5-3 Requirements for input power
Parameter

Min.

Typ.

Max.

Ripple

Unit

VBAT

3.2

3.8

4.2

0.05

Figure 5-1 Power Supply During Burst Emission

The VBAT minimum value must be guaranteed during the burst (with 2.75 A Peak in GPRS or
GSM mode).

Table 5-4 Requirements for input current
Power

Peak (GSM 1 slot)

Normal (WCDMA)

Normal (LTE 23 dbm)

VBAT

2750 mA

1100 mA

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5.4.2 Power Consumption
The power consumptions of ME909s LGA module in different scenarios are
respectively listed in Table 5-5 to Table 5-11 .
The power consumption listed in this section is tested when the power supply of
ME909s LGA module is 3.8 V, and all of test values are measured at room
temperature.
Table 5-5 Averaged power off DC power consumption
Description

Test Value (Unit: µA)

Notes/Configuration

Typical
Power off

Normal voltage (3.8 V) is ON while
power on event is not triggered.

Table 5-6 Averaged standby DC power consumption of ME909s-821 LGA module
Description

Bands

Test Value (Unit: mA)

Notes/Configuration

Typical
Sleep

LTE

LTE bands

1.9

Module is powered up.
Paging cycle=256 (2.56s)
Module is registered on the
network.
USB is in suspend

TD-SCDMA

TD-SCDMA
bands

2.5

Module is powered up.
DRX cycle=8 (2.56s)
Module is registered on the
network.
USB is in suspend

HSPA+/WCDMA

UMTS bands

1.7

Module is powered up
DRX cycle=8 (1.28s)
Module is registered on the
network.
USB is in suspend

GPRS/EDGE

GSM bands

2.1

Module is powered up
MFRMS=5 (1.175s)
Module is registered on the
network.
USB is in suspend.

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Bands

Electrical and Reliability Features

Test Value (Unit: mA)

Notes/Configuration

Typical
Idle

LTE

LTE bands

Module is powered up.
Paging cycle=256 (2.56s)
Module is registered on the
network, no data is
transmitted.
USB is in active.

TD-SCDMA

TD-SCDMA
bands

Module is powered up.
DRX cycle=8 (2.56s)
Module is registered on the
network.
USB is in active

HSPA+/WCDMA

UMTS bands

Module is powered up
DRX cycle=8 (1.28s)
Module is registered on the
network, no data is
transmitted
USB is in active.

GPRS/EDGE

GSM bands

Module is powered up
MFRMS=5 (1.175s)
Module is registered on the
network, no data is
transmitted
USB is in active.

Table 5-7 Averaged standby DC power consumption of ME909s-120 LGA module
Description

Bands

Test Value (Unit: mA)

Notes/Configuration

Typical
Sleep

LTE

LTE bands

1.85

Module is powered up.
Paging cycle=256 (2.56s)
Module is registered on the
network.
USB is in suspend.

HSPA/WCDMA

UMTS bands

1.5

Module is powered up
DRX cycle=8 (1.28s)
Module is registered on the
network.
USB is in suspend.

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Bands

Electrical and Reliability Features

Test Value (Unit: mA)

Notes/Configuration

Typical
GPRS/EDGE

GSM bands

1.87

Module is powered up
MFRMS=5 (1.175s)
Module is registered on the
network.
USB is in suspend.

Idle

LTE

LTE bands

Module is powered up.
Paging cycle=256 (2.56s)
Module is registered on the
network, no data is
transmitted.
USB is in active.

HSPA/WCDMA

UMTS bands

Module is powered up
DRX cycle=8 (1.28s)
Module is registered on the
network, no data is
transmitted
USB is in active.

GPRS/EDGE

GSM bands

Module is powered up
MFRMS=5 (1.175s)
Module is registered on the
network.
no data is transmitted
USB is in active.

Table 5-8 Averaged Data Transmission DC power consumption of ME909s-821 LGA
module (LTE/HSPA/WCDMA/TD-SCDMA)
Description

Band

Test Value (Unit: mA)

Notes/Configuration

Typical
WCDMA

Band 1

188

0 dBm Tx Power

(IMT 2100)

216

10 dBm Tx Power

603

23.5 dBm Tx Power

Band 5

181

0 dBm Tx Power

(850MHz)

199

10 dBm Tx Power

501

23.5 dBm Tx Power

188

0 dBm Tx Power

Band 8

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Band

Electrical and Reliability Features

Test Value (Unit: mA)

Notes/Configuration

Typical
(900 MHz)

HSPA

TDD LTE

207

10 dBm Tx Power

504

23.5 dBm Tx Power

Band 9

212

0 dBm Tx Power

(J1700)

289

10 dBm Tx Power

719

23.5 dBm Tx Power

Band 1

179

0 dBm Tx Power

(IMT 2100)

213

10 dBm Tx Power

578

23.5 dBm Tx Power

Band 5

172

0 dBm Tx Power

(850MHz)

189

10 dBm Tx Power

439

23.5 dBm Tx Power

Band 8

177

0 dBm Tx Power

(900 MHz)

201

10 dBm Tx Power

489

23.5 dBm Tx Power

Band 9

221

0 dBm Tx Power

(J1700)

300

10 dBm Tx Power

743

23.5 dBm Tx Power

195

0 dBm Tx Power

242

10 dBm Tx Power

400

23 dBm Tx Power

182

0 dBm Tx Power

213

10 dBm Tx Power

273

23 dBm Tx Power

195

0 dBm Tx Power

242

10 dBm Tx Power

438

23 dBm Tx Power

195

0 dBm Tx Power

246

10 dBm Tx Power

405

23 dBm Tx Power

263

0 dBm Tx Power

Band 38

Band 39

Band 40

Band 41

FDD LTE

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Band

Electrical and Reliability Features

Test Value (Unit: mA)

Notes/Configuration

Typical

Band 3

Band 8

TD-SCDMA

Band 34

Band 39

315

10 dBm Tx Power

623

23 dBm Tx Power

268

0 dBm Tx Power

338

10 dBm Tx Power

807

23 dBm Tx Power

264

0 dBm Tx Power

298

10 dBm Tx Power

520

23 dBm Tx Power

0 dBm Tx Power

10 dBm Tx Power

132

23 dBm Tx Power

0 dBm Tx Power

101

10 dBm Tx Power

133

23 dBm Tx Power

Table 5-9 Averaged Data Transmission DC power consumption of ME909s-120 LGA
module (WCDMA/HSDPA/LTE)
Description

Band

Test Value (Unit: mA)

Notes/Configuration

Typical
WCDMA

Band 1

190

0 dBm Tx Power

(IMT 2100)

225

10 dBm Tx Power

690

23.5 dBm Tx Power

Band 2

187

0 dBm Tx Power

(PCS 1900)

220

10 dBm Tx Power

670

23.5 dBm Tx Power

180

0 dBm Tx Power

215

10 dBm Tx Power

555

23.5 dBm Tx Power

185

0 dBm Tx Power

Band 5
(850 MHz)

Band 8

Issue 04 (2016-12-21)

HUAWEI ME909s Series LTE LGA Module
Hardware Guide

Description

Band

Electrical and Reliability Features

Test Value (Unit: mA)

Notes/Configuration

Typical
(900 MHz)

HSDPA

LTE

220

10 dBm Tx Power

635

23.5 dBm Tx Power

Band 1

205

0 dBm Tx Power

(IMT2100)

243

10 dBm Tx Power

631

23.5 dBm Tx Power

Band 2

202

0 dBm Tx Power

(PCS 1900)

238

10 dBm Tx Power

580

23.5 dBm Tx Power

Band 5

200

0 dBm Tx Power

(850 MHz)

235

10 dBm Tx Power

535

23.5 dBm Tx Power

Band 8

205

0 dBm Tx Power

(900 MHz)

247

10 dBm Tx Power

575

23.5 dBm Tx Power

270

0 dBm Tx Power

330

10 dBm Tx Power

725

23 dBm Tx Power

275

0 dBm Tx Power

330

10 dBm Tx Power

715

23 dBm Tx Power

273

0 dBm Tx Power

340

10 dBm Tx Power

735

23 dBm Tx Power

276

0 dBm Tx Power

340

10 dBm Tx Power

705

23 dBm Tx Power

280

0 dBm Tx Power

642

10 dBm Tx Power

Band 1

Band 2

Band 3

Band 4

Band 5

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HUAWEI ME909s Series LTE LGA Module
Hardware Guide

Description

Band

Electrical and Reliability Features

Test Value (Unit: mA)

Notes/Configuration

Typical

Band 7

Band 8

Band 20

725

23 dBm Tx Power

280

0 dBm Tx Power

340

10 dBm Tx Power

725

23 dBm Tx Power

278

0 dBm Tx Power

330

10 dBm Tx Power

645

23 dBm Tx Power

280

0 dBm Tx Power

330

10 dBm Tx Power

665

23 dBm Tx Power

Table 5-10 Averaged DC power consumption of ME909s-821 LGA module
(GPRS/EDGE)
Description

Test Value

Units

PCL

Configuration

GPRS 900

314

1 Up/1 Down

468

2 Up/1 Down

627

4 Up/1 Down

169

GPRS 1800

1 Up/1 Down
2 Up/1 Down

430

4 Up/1 Down

190

1 Up/1 Down

275

2 Up/1 Down

363

4 Up/1 Down
mA

1 Up/1 Down

133

2 Up/1 Down

190

4 Up/1 Down

213
292

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257

107

EDGE 900

1 Up/1 Down
2 Up/1 Down

HUAWEI ME909s Series LTE LGA Module
Hardware Guide

Description

Test Value

Units

Electrical and Reliability Features

PCL

390
121

EDGE 1800

Configuration
4 Up/1 Down

1 Up/1 Down

157

2 Up/1 Down

238

4 Up/1 Down

161

1 Up/1 Down

225

2 Up/1 Down

295

4 Up/1 Down

108

1 Up/1 Down

136

2 Up/1 Down

194

4 Up/1 Down

Table 5-11 Averaged DC power consumption of ME909s-120 LGA module
(GPRS/EDGE)
Description

Test Value

Units

PCL

Configuration

GPRS 850

307

1 Up/1 Down

455

2 Up/1 Down

625

4 Up/1 Down

172

GPRS 900

1 Up/1 Down
2 Up/1 Down

435

4 Up/1 Down

315

1 Up/1 Down

445

2 Up/1 Down

615

4 Up/1 Down
mA

1 Up/1 Down

257

2 Up/1 Down

430

4 Up/1 Down

210

1 Up/1 Down

285

2 Up/1 Down

380

4 Up/1 Down

112

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258

175

GPRS 1800

1 Up/1 Down

HUAWEI ME909s Series LTE LGA Module
Hardware Guide

Description

GPRS 1900

Test Value

195

4 Up/1 Down

230

1 Up/1 Down

440

4 Up/1 Down
mA

1 Up/1 Down

145

2 Up/1 Down

205

4 Up/1 Down

210

1 Up/1 Down

295

2 Up/1 Down

387

4 Up/1 Down
mA

1 Up/1 Down

165

2 Up/1 Down

245

4 Up/1 Down

205

1 Up/1 Down

287

2 Up/1 Down

382

4 Up/1 Down
mA

1 Up/1 Down

165

2 Up/1 Down

245

4 Up/1 Down

170

1 Up/1 Down

230

2 Up/1 Down

310

4 Up/1 Down
mA

1 Up/1 Down

135

2 Up/1 Down

195

4 Up/1 Down

187

1 Up/1 Down

248

2 Up/1 Down

335

4 Up/1 Down

114
145

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2 Up/1 Down

108

EDGE 1900

323

125

EDGE 1800

Configuration
2 Up/1 Down

125

EDGE 900

PCL

145

115

EDGE 850

Units

Electrical and Reliability Features

1 Up/1 Down
2 Up/1 Down

HUAWEI ME909s Series LTE LGA Module
Hardware Guide

Description

Test Value

Electrical and Reliability Features

Units

PCL

205

Configuration
4 Up/1 Down



All power consumption test configuration can be referenced by GSM Association Official
Document TS.09: Battery Life Measurement and Current Consumption Technique.



LTE test condition: 10/20 MHz bandwidth, QPSK, 1 RB when testing max. Tx power and full
RB when testing 0 dBm or 10 dBm.



Test condition: For Max. Tx. power, see 4.4.2 Conducted Transmit Power, which are listed in
Table 4-5 and Table 4-6 , for Max. data throughput, see 2.2 Function Overview, which are
listed in Table 2-1 .

5.5 Reliability Features
Table 5-12 lists the test conditions and results of the reliability of the ME909s LGA
module.
Table 5-12 Test conditions and results of the reliability of the ME909s LGA module
Item
Stress

Test Condition
Low-temperature
storage

High-temperature
storage

Low-temperature
operating

High-temperature
operating



Temperature: –40ºC



Operation mode: no
power, no package



Test duration: 24 h



Temperature: 85ºC



Operation mode: no
power, no package



Test duration: 24 h



Temperature: –40ºC



Operation mode:
working with service
connected



Test duration: 24 h



Temperature: 85ºC



Operation mode:
working with service
connected



Issue 04 (2016-12-21)

Standard

Sample size

Results

JESD22-A1
19-C

3 pcs/group

Visual inspection: OK
Function test: OK
RF specification: OK

JESD22-A1
03-C

3 pcs/group

Visual inspection: OK
Function test: OK
RF specification: OK

IEC60068-2
-1

3 pcs/group

Visual inspection: OK
Function test: OK
RF specification: OK

JESD22-A1
08-C

3 pcs/group

Visual inspection: OK
Function test: OK
RF specification: OK

Test duration: 24 h

HUAWEI ME909s Series LTE LGA Module
Hardware Guide
Item
Temperature
cycle operating

Damp heat
cycling

Thermal shock

Salty fog test

Electrical and Reliability Features

Test Condition

Standard

Sample size

Results



High temperature:
85ºC

JESD22-A1
05-B

3pcs/group

Visual inspection: OK



Low temperature:
–40ºC



Operation mode:
working with service
connected



Test duration: 30
cycles;1 h+1 h/cycle



High temperature:
55ºC



Low temperature:
25ºC



Humidity: 95%±3%



Operation mode:
working with service
connected



Test duration: 6
cycles; 12 h+12
h/cycle



Low temperature:
–40ºC



High temperature:
85ºC



Temperature
change interval: <
30s



Operation mode: no
power



Test duration: 100
cycles; 15 min+15
min/cycle



Temperature: 35°C



Density of the NaCl
solution: 5%±1%



Operation mode: no
power, no package



Test duration:

Function test: OK
RF specification: OK

JESD22-A1
01-B

3 pcs/group

Visual inspection: OK
Function test: OK
RF specification: OK

JESD22-A1
06-B

3 pcs/group

Visual inspection: OK
Function test: OK
RF specification: OK

JESD22-A1
07-B

3 pcs/group

Visual inspection: OK
Function test: OK
RF specification: OK

Spraying interval: 8
h
Exposing period
after removing the
salty fog
environment: 16 h

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HUAWEI ME909s Series LTE LGA Module
Hardware Guide
Item
Sine vibration

Shock test

Drop test

Life

High temperature
operating life

Test Condition

Standard

Sample size

Results



Frequency range: 5
Hz to 200 Hz

JESD22-B1
03-B

3 pcs/group

Visual inspection: OK



Acceleration: 1
Grms



Frequency scan
rate: 0.5 oct/min



Operation mode:
working with service
connected



Test duration: 3
axial directions. 2 h
for each axial
direction.



Half-sine wave
shock



Peak acceleration:
30 Grms



Shock duration: 11
ms



Operation mode:
working with service
connected



Test duration: 6
axial directions. 3
shocks for each
axial direction.



0.8 m in height.
Drop the module on
the marble terrace
with one surface
facing downwards,
six surfaces should
be tested.



Operation mode: no
power, no package



Temperature: 85ºC



Operation mode:
working with service
connected



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Electrical and Reliability Features

Function test: OK
RF specification: OK

JESD-B104
-C

3 pcs/group

Visual inspection: OK
Function test: OK
RF specification: OK

IEC60068-2
-32

3 pcs/group

Visual inspection: OK
Function test: OK
RF specification: OK

JESD22-A1
08-B

50 pcs/group

Visual inspection: OK
Function test: OK
RF specification: OK

Test duration: 168 h,
336 h, 500 h, 1000 h
for inspection point

HUAWEI ME909s Series LTE LGA Module
Hardware Guide
Item
High temperature
& high humidity

Temperature
cycle-Non
operating

Electrical and Reliability Features

Test Condition

Standard

Sample size

Results



High temperature:
85ºC

JESD22-A1
10-B

50 pcs/group

Visual inspection: OK



Humidity: 85%



Operation mode:
powered on and no
working



Test duration: 168 h,
336 h, 500 h, 1000 h
for inspection point



High temperature:
85ºC



Low temperature:
–40ºC



Temperature
change slope:
6ºC/min



Operation mode: no
power



Test duration: 168
cycle,

Function test: OK
RF specification: OK

JESD22-A1
04-C

50 pcs/group

Visual inspection: OK
Function test: OK
RF specification: OK

336 cycle, 500
cycle, 668cycle for
inspection point
ESD

HBM (Human
Body Model)

ESD with DVK (or
embedded in the
host)



1 kV (Class 1 B)



Operation mode: no
power



Contact Voltage: ±2
kV, ±4 kV



Air Voltage: ±2 kV,
±4 kV, ±8 kV



Operation mode:
working with service
connected

JESD22-A1
14-D

3 pcs/group

Visual inspection: OK
Function test: OK
RF specification: OK

IEC61000-4
-2

2 pcs

Visual inspection: OK
Function test: OK
RF specification: OK

Groups ≥ 2

5.6 EMC and ESD Features
The following are the EMC design comments:


Issue 04 (2016-12-21)

Attention should be paid to static control in the manufacture, assembly, packaging,
handling and storage process to reduce electrostatic damage to HUAWEI
module.
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.

HUAWEI ME909s Series LTE LGA Module
Hardware Guide

Electrical and Reliability Features



RSE (Radiated Spurious Emission) may exceed the limit defined by EN301489 if
the antenna port is protected by TVS (Transient Voltage Suppressor), which is
resolved by making some adjustment on RF match circuit.



TVS should be added on the USB port for ESD protection, and the parasitic
capacitance of TVS on D+/D- signal should be less than 2 pF. Common-mode
inductor should be added in parallel on D+/D- signal.



TVS should be added on the USIM interface for ESD protection. The parasitic
capacitance of TVS on USIM signal should be less than 10 pF;



Resistors in parallel and a 10nF capacitance should be added on RESIN_N and
POWER_ON_OFF signal to avoid shaking, and the distance between the
capacitor and the related pins should be less than 100 mil.



A TVS should be added to the module power supply. It is recommended that the
TVS's Clamping Voltage (VCL) be smaller than 12 V and Peak Pulse Power (PPP)
at least 100 W.



PCB routing should be V-type rather than T-type for TVS (Transient Voltage
Suppressor).



An integrated ground plane is necessary for EMC design.

The following are the requirements of ESD environment control:


The electrostatic discharge protected area (EPA) must have an ESD floor whose
surface resistance and system resistance are greater than 1 x 10 4 Ω while less
than 1 x 109 Ω.



The EPA must have a sound ground system without loose ground wires, and the
ground resistance must be less than 4 Ω.



The workbench for handling ESD sensitive components must be equipped with
common ground points, the wrist strap jack, and ESD pad. The resistance
between the jack and common ground point must be less than 4 Ω. The surface
resistance and system resistance of the ESD pad must be less than 1 x 10 9 Ω.



The EPA must use the ESD two-circuit wrist strap, and the wrist strap must be
connected to the dedicated jack. The crocodile clip must not be connected to the
ground.



The ESD sensitive components, the processing equipment, test equipment, tools,
and devices must be connected to the ground properly. The indexes are as
follows:
−

Hard ground resistance < 4 Ω

−

1 x 105 Ω ≤ Soft ground resistance < 1 x 109 Ω

−

1 x 105 Ω ≤ ICT fixture soft ground resistance < 1 x 1011 Ω

−

The electronic screwdriver and electronic soldering iron can be easily oxidized.
Their ground resistance must be less than 20 Ω.



The parts of the equipment, devices, and tools that touch the ESD sensitive
components and moving parts that are close to the ESD sensitive components
must be made of ESD materials and have sound ground connection. The parts
that are not made of ESD materials must be handled with ESD treatment, such
as painting the ESD coating or ionization treatment (check that the friction voltage
is less than 100 V).



Key parts in the production equipment (parts that touch the ESD sensitive
components or parts that are within 30 cm away from the ESD sensitive
components), including the conveyor belt, conveyor chain, guide wheel, and SMT
nozzle, must all be made of ESD materials and be connected to the ground
properly (check that the friction voltage is less than 100 V).

Issue 04 (2016-12-21)

HUAWEI ME909s Series LTE LGA Module
Hardware Guide

Electrical and Reliability Features



Engineers that touch IC chips, boards, modules, and other ESD sensitive
components and assemblies must wear ESD wrist straps, ESD gloves, or ESD
finger cots properly. Engineers that sit when handling the components must all
wear ESD wrist straps.



Noticeable ESD warning signs must be attached to the packages and placement
areas of ESD sensitive components and assemblies.



Boards and IC chips must not be stacked randomly or be placed with other ESD
components.



Effective shielding measures must be taken on the ESD sensitive materials that
are transported or stored outside the EPA.
HUAWEI ME909s LGA module does not include any protection against overvoltage.

Issue 04 (2016-12-21)

HUAWEI ME909s Series LTE LGA Module
Hardware Guide

Mechanical Specifications

6.1 About This Chapter
This chapter describes the process design and mechanical specifications:


Storage Requirement



Moisture Sensitivity



Dimensions



Packaging



Customer PCB Design



Thermal Design Solution



Assembly Processes



Specification of Rework

6.2 Storage Requirement
The module must be stored and sealed properly in vacuum package under a
temperature below 40°C and the relative humidity less than 90% in order to ensure
the weldability within 12 months.

6.3 Moisture Sensitivity


The moisture sensitivity is level 3.



After unpacking, the module must be assembled within 168 hours under the
environmental conditions that the temperature is lower than 30°C and the relative
humidity is less than 60%. If the preceding conditions cannot be met, the module
needs to be baked according to the parameters specified in Table 6-1 .

Issue 04 (2016-12-21)

HUAWEI ME909s Series LTE LGA Module
Hardware Guide

Mechanical Specifications

Table 6-1 Baking parameters
Baking Temperature

Baking Condition

Baking Duration

Remarks

125°C±5°C

Relative humidity ≤ 60%

8 hours

Moving, storing, and processing the product must comply with IPC/JEDEC J-STD-033.

6.4 Dimensions
Figure 6-1 shows the dimensions in details.
Figure 6-1 Dimensions (Unit: mm)

6.5 Packaging
HUAWEI LGA module uses five layers ESD pallet, anti-vibration foam and vacuum
packing into cartons. The tray specification complies with Jedec_Tray_DGuide4-10D.

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HUAWEI ME909s Series LTE LGA Module
Hardware Guide

Mechanical Specifications

Figure 6-2 ESD pallet (Unit: mm)

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HUAWEI ME909s Series LTE LGA Module
Hardware Guide

Mechanical Specifications

Figure 6-3 The packaging
Module quantity per tray:
4 x 9 = 36 pcs/tray

Use vacuum packages;
five trays per carton;
module quantity per carton:
5 x 36 = 180 pcs/carton.

8 middle cartons per large carton;
Module quantity per large carton:
180 x 8 = 1440 pcs/carton.

Issue 04 (2016-12-21)

HUAWEI ME909s Series LTE LGA Module
Hardware Guide

Mechanical Specifications

6.6 Customer PCB Design
6.6.1 PCB Surface Finish
The PCB surface finish recommended is Electroless Nickel, immersion Gold (ENIG).
Organic Solderability Preservative (OSP) may also be used, ENIG preferred.

6.6.2 PCB Pad Design
To achieve assembly yields and solder joints of high reliability, it is recommended that
the PCB pad size be designed as follows:
Figure 6-4 ME909s LGA module Footprint design (Unit: mm)

6.6.3 Solder Mask
NSMD is recommended. In addition, the solder mask of the NSMD (Non-solder Mask
Defined) pad design is larger than the pad so the reliability of the solder joint can be
improved.
The solder mask must be 100 µm–150 µm larger than the pad, that is, the single side
of the solder mask must be 50 µm–75 µm larger than the pad. The specific size
depends on the processing capability of the PCB manufacturer.

6.6.4 Requirements on PCB Layout


Issue 04 (2016-12-21)

To reduce deformation, a thickness of at least 1.0 mm is recommended.

HUAWEI ME909s Series LTE LGA Module
Hardware Guide

Mechanical Specifications



Other devices must be located more than 3 mm (5 mm recommended) away from
the two parallel sides of the LGA module (rework requirement), and other sides
with 0.6 mm. The minimum distance between the LGA module and the PCB edge
is 0.3 mm.



When the PCB layout is double sided, the module must be placed on the second
side for assembly; so as to avoid module dropped from PCB or component
(located in module) re-melding defects caused by uneven weight.

Figure 6-5 PCB Layout (Unit: mm)

6.7 Thermal Design Solution
When the module works in the maximum power condition, the module has high power
consumption (for details, see Power Consumption). To improve the module reliability
and stability, focus on the thermal design of the device to speed up heat dissipation.
For thermal characteristics of the ME909s LGA module, you can refer to Operating
and Storage Temperatures.
Take the following heat dissipation measures:


The copper size on the PCB should be 70 mm x 70 mm or larger.



All copper ground layers of the PCB must be connected to each other through
via-holes.



Increase the quantity of the PCB ground planes.



The ground planes should be as continuous as possible.



If a fan is deployed, place the module at the cold air inlet.



Use heat sink, thermal conductive material and product enclosure to enhance the
heat dissipation of the module.

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HUAWEI ME909s Series LTE LGA Module
Hardware Guide

Mechanical Specifications

−

Use anodized heat sink on the shielding case or the customer PCB on bottom
side for optimal heat dissipation. The recommended heat sink dimensions are
70 mm x 70 mm x1 mm or larger.

−

The material of the heat sink should adopt the higher thermal conductivity
metallic materials, e.g. Al or Cu.

−

The recommended thermal conductivity of the thermal conductive material is
1.0 W/m-k or higher (recommended manufacturers: Laird or Bergquist).

−

Conductive material should obey the following rule: after the heat sink is
fastened to the shielding case, the compression amount of the thermal
conductive material accounts for 15% to 30% of the thermal conductive
material size.

−

Conductive material should be as thin as possible.

−

The recommended material of the enclosure is metallic materials, especially
you can add pin fin on the enclosure surface.

−

If the heat sink is installed above the shielding case, you should attach the
thermal conductive material between the shielding case and the heat sink; if
the heat sink is installed below the bottom side of the customer PCB, you
should attach the thermal conductive material between the customer PCB and
the heat sink, as shown in Figure 6-6 and Figure 6-7 . Preferably, we
recommend the heat sink be installed below the bottom side of the customer
PCB.

−

Use more pin fins to enlarge heat dissipation area.

Figure 6-6 Adding heat sink to the module for optimal heat dissipation
Shielding case
Module PCB

Heat sink
Conductive material
Customer PCB

Shielding case
Module PCB

Customer PCB
Conductive material
Heat sink

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HUAWEI ME909s Series LTE LGA Module
Hardware Guide

Mechanical Specifications

Figure 6-7 Adding enclosure to enhance the heat dissipation of the module
Shielding case
Module PCB

Enclosure
Conductive material
Heat sink

Customer PCB

Shielding case
Heat sink
Conductive material

Customer PCB

Enclosure
Module PCB

6.8 Assembly Processes
6.8.1 General Description of Assembly Processes


Tray modules are required at SMT lines, because LGA modules are placed on
ESD pallets.



Reflow ovens with at least seven temperature zones are recommended.



Use reflow ovens or rework stations for soldering, because LGA modules have
large solder pads and cannot be soldered manually.

6.8.2 Stencil Design
It is recommended that the stencil for the LGA module be 0.15 mm in thickness. For
the stencil design, see the following figure:

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HUAWEI ME909s Series LTE LGA Module
Hardware Guide

Mechanical Specifications

Figure 6-8 Recommended stencil design of LGA module (Unit: mm)

The stencil design has been qualified for HUAWEI motherboard assembly, customers can
adjust the parameters by their motherboard design and process situation to assure LGA
soldering quality and no defect.

6.8.3 Reflow Profile
The LGA module must be reflowed on the top side of the customer's development
board. For the soldering temperature of the LGA module, see the following figure.

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Hardware Guide

Mechanical Specifications

Figure 6-9 Reflow profile
°C
300

235°C 217°C)

(t3–t4): 45s–80s

Peak reflow temperature:
235°C–245°C

Cooling zone

Cooling rate: 2°C/s ≤ Slope ≤ 5°C/s

6.9 Specification of Rework
6.9.1 Process of Rework

Issue 04 (2016-12-21)

HUAWEI ME909s Series LTE LGA Module
Hardware Guide

Mechanical Specifications

6.9.2 Preparations of Rework


Remove barrier or devices that can’t stand high temperature before rework.



If the device to be reworked is beyond the storage period, bake the device
according to Table 6-1 .

6.9.3 Removing of the Module
The solder is molten and reflowed through heating during the module removing
process. The heating rate must be quick but controllable in order to melt all the solder
joints simultaneously. Pay attention to protect the module, PCB, neighboring devices,
and their solder joints against heating or mechanical damages.


The LGA module has many solder pads and the pads are large. Therefore, common
soldering irons and heat guns cannot be used in the rework. Rework must be done using
either infrared heating rework stations or hot air rework stations. Infrared heating rework
stations are preferred, because they can heat components without touching them. In
addition, infrared heating rework stations produce less solder debris and less impact on
modules, while hot air rework stations may cause shift of other components not to be
reworked.



You must not reuse the module after disassembly from PCB during rework.



It is proposed that a special clamp is used to remove the module.

Figure 6-10 Equipment used for rework

Issue 04 (2016-12-21)

HUAWEI ME909s Series LTE LGA Module
Hardware Guide

Mechanical Specifications

6.9.4 Welding Area Treatment
Step 1 Remove the old solder by using a soldering iron and solder braid that can wet the
solder.
Step 2 Clean the pad and remove the flux residuals.
Step 3 Solder pre-filling: Before the module is installed on a board, apply some solder paste
to the pad of the module by using the rework fixture and stencil or apply some solder
paste to the pad on the PCB by using a rework stencil.
It is recommended that a fixture and a mini-stencil be made to apply the solder paste in the
rework.

6.9.5 Module Installation
Install the module precisely on the motherboard and ensure the right installation
direction of the module and the reliability of the electrical connection with the PCB. It is
recommended that the module be preheated in order to ensure that the temperature
of all parts to be soldered is uniform during the reflow process. The solder quickly
reflows upon heating so the parts are soldered reliably. The solder joints undergo
proper reflow duration at a preset temperature to form a favorable Inter-metallic
Compound (IMC).


It is recommended that a special clamp be used to pick the module when the module is
installed on the pad after applied with some solder.



A special rework device must be used for the rework.

6.9.6 Specifications of Rework
Temperature parameter of rework: for either the removing or welding of the module,
the heating rate during the rework must be equal to or smaller than 3°C/s, and the
peak temperature between 240°C–250°C. The following parameters are
recommended during the rework.
Figure 6-11 Temperature graph of rework

Issue 04 (2016-12-21)

HUAWEI ME909s Series LTE LGA Module
Hardware Guide

Certifications

7.1 About This Chapter
This chapter gives a general description of certifications of the ME909s LGA module.

7.2 Certifications
Figure 7-1 shows certifications the ME909s LGA module have been implemented. For more
demands, please contact us for more details about this information.

Figure 7-1 Product Certifications of ME909s LGA module
Certification

Model name
ME909s -821

ME909s -120

√

RoHS

√

CCC

√

GCF

√

WEEE

√

Issue 04 (2016-12-21)

HUAWEI ME909s Series LTE LGA Module
Hardware Guide

Safety Information

8.1 About This Chapter
Read the safety information carefully to ensure the correct and safe use of your
wireless device. Applicable safety information must be observed.


Interference



Medical Device



Area with Inflammables and Explosives



Traffic Security



Airline Security



Safety of Children



Environment Protection



WEEE Approval



RoHS Approval



Laws and Regulations Observance



Care and Maintenance



Emergency Call



Regulatory Information

8.2 Interference
Power off your wireless device if using the device is prohibited. Do not use the
wireless device when it causes danger or interference with electric devices.

8.3 Medical Device


Power off your wireless device and follow the rules and regulations set forth by
the hospitals and health care facilities.



Some wireless devices may affect the performance of the hearing aids. For any
such problems, consult your service provider.

Issue 04 (2016-12-21)

HUAWEI ME909s Series LTE LGA Module
Hardware Guide


Safety Information

Pacemaker manufacturers recommend that a minimum distance of 15 cm be
maintained between the wireless device and a pacemaker to prevent potential
interference with the pacemaker. If you are using an electronic medical device,
consult the doctor or device manufacturer to confirm whether the radio wave
affects the operation of this device.

8.4 Area with Inflammables and Explosives
To prevent explosions and fires in areas that are stored with inflammable and
explosive devices, power off your wireless device and observe the rules. Areas stored
with inflammables and explosives include but are not limited to the following:


Gas station



Fuel depot (such as the bunk below the deck of a ship)



Container/Vehicle for storing or transporting fuels or chemical products



Area where the air contains chemical substances and particles (such as granule,
dust, or metal powder)



Area indicated with the "Explosives" sign



Area indicated with the "Power off bi-direction wireless equipment" sign



Area where you are generally suggested to stop the engine of a vehicle

8.5 Traffic Security


Observe local laws and regulations while using the wireless device. To prevent
accidents, do not use your wireless device while driving.



RF signals may affect electronic systems of motor vehicles. For more information,
consult the vehicle manufacturer.



In a motor vehicle, do not place the wireless device over the air bag or in the air
bag deployment area. Otherwise, the wireless device may hurt you owing to the
strong force when the air bag inflates.

8.6 Airline Security
Observe the rules and regulations of airline companies. When boarding or
approaching a plane, power off your wireless device. Otherwise, the radio signal of
the wireless device may interfere with the plane control signals.

8.7 Safety of Children
Do not allow children to use the wireless device without guidance. Small and sharp
components of the wireless device may cause danger to children or cause suffocation
if children swallow the components.

Issue 04 (2016-12-21)

HUAWEI ME909s Series LTE LGA Module
Hardware Guide

Safety Information

8.8 Environment Protection
Observe the local regulations regarding the disposal of your packaging materials,
used wireless device and accessories, and promote their recycling.

8.9 WEEE Approval
The wireless device is in compliance with the essential requirements and other
relevant provisions of the Waste Electrical and Electronic Equipment Directive
2012/19/EU (WEEE Directive).

8.10 RoHS Approval
The wireless device is in compliance with the restriction of the use of certain
hazardous substances in electrical and electronic equipment Directive 2011/65/EU
(RoHS Directive).

8.11 Laws and Regulations Observance
Observe laws and regulations when using your wireless device. Respect the privacy
and legal rights of the others.

8.12 Care and Maintenance
It is normal that your wireless device gets hot when you use or charge it. Before you
clean or maintain the wireless device, stop all applications and power off the wireless
device.


Use your wireless device and accessories with care and in clean environment.
Keep the wireless device from a fire or a lit cigarette.



Protect your wireless device and accessories from water and vapour and keep
them dry.



Do not drop, throw or bend your wireless device.



Clean your wireless device with a piece of damp and soft antistatic cloth. Do not
use any chemical agents (such as alcohol and benzene), chemical detergent, or
powder to clean it.



Do not leave your wireless device and accessories in a place with a considerably
low or high temperature.



Use only accessories of the wireless device approved by the manufacture.
Contact the authorized service center for any abnormity of the wireless device or
accessories.



Do not dismantle the wireless device or accessories. Otherwise, the wireless
device and accessories are not covered by the warranty.



The device should be installed and operated with a minimum distance of 20 cm
between the radiator and your body.

Issue 04 (2016-12-21)

HUAWEI ME909s Series LTE LGA Module
Hardware Guide

Safety Information

8.13 Emergency Call
This wireless device functions through receiving and transmitting radio signals.
Therefore, the connection cannot be guaranteed in all conditions. In an emergency,
you should not rely solely on the wireless device for essential communications.

8.14 Regulatory Information
The following approvals and notices apply in specific regions as noted.

8.14.1 CE Approval (European Union)
The wireless device is approved to be used in the member states of the EU. The
wireless device is in compliance with the essential requirements and other relevant
provisions of the Radio and Telecommunications Terminal Equipment Directive
1999/5/EC (R&TTE Directive).

Issue 04 (2016-12-21)

HUAWEI ME909s Series LTE LGA Module
Hardware Guide

Appendix A Circuit of Typical Interface

HUAWEI MU709 Series HSPA+ LGA Module
Hardware Guide

Appendix A Circuit of Typical Interface

J301

33pF

0Ω

L313

L310

These are impedance matching
circuit, the specific capacitance
and inductance value needs to
be adjusted, based on the
characteristic impedance of
the practical PCB.

33pF

**33n

WL629D3_T01_TR_A
D310

C371 22pF

22pF

SMA6251A1_060_20GHT50GH_50

**33n

C365

2 34 5
R344

C370

1uF

C379

C362

100nF

C361
33pF

SMF05CTC
1
6

C360

33pF

J302
1

1P1 P44
2P2 P55
3P3 P66

0Ω

C363

0Ω

R341
R342
R343

J303
C372 22pF

L311

22pF
L314

C366

1
2345

**33n

SMA6251A1_060_20GHT50GH_50

LGA120H-3030A

94
95

Issue 04 (2016-12-21)

C321

RESERVED
RESERVED

VCC_EXT1
RESERVED

R330

5V-P-3

R331

30K

5
7

1uF C322

4.7uF

100nF

ILIM
GND1

2.2uF

C318
22uF

C316

C319

75K

22uF

C317

C310

R325

22pF

100nF

180K

1uF

R327
0

20K

C313 47K

R326

C307

C308

R324

100nF

C306
22uF

C305
1
150uF
2

LX1
GND1
SHDN/RT

220pF
VCC_EXT1

33pF

WAKEUP_IN_TO_MODULE

**10K
3C

R138

WAKEUP_IN_FROM_HOST

B1
R117
**2.2K

**NPN-BEC
Q109
BC847ALT1

1
2

RV303

1
2

**220uF C352

11
71
32
31
92

OUT

FAULT

VCC_EXT1

33
35

WAKEUP_IN_TO_MODULE
WAKEUP_IN
WAKEUP_OUT

L320

12
13

RESERVED
RESERVED

U304
HPA00615DRVR

**10K

C320

C354

C353
RV302

**6.8pF

RV301

**6.8pF

C304

C303

1
150uF
2

COMP

85
86
84

220uF C351

NC
NC
NC
NC

VBAT
VBAT

NC
NC

SD_VCC

Issue 06 (2015-11-30)

LX2

3
2
4
1

220uF C354

41
40
39
38

PGND

PVDD2

LED_MODE
RESERVED

L303

PVDD1

VDD

220uF C350

82
83

USB_DM
USB_DP
NC

1MEG

U301
RT8015AGQW

80
75
73
79
77
74
78
76

RESERVED
RESERVED
RESERVED
RESERVED

62
63
64
65

0.47K 101

RESERVED
RESERVED
RESERVED
RESERVED
RESERVED

R328

220uF C355

R340

RESERVED
RESERVED
NC
NC
RESERVED

RESERVED
RESERVED
RESERVED
RESERVED
UART0_CTS
UART0_DCD
UART0_DSR
UART0_DTR
UART0_RING
UART0_RTS
UART0_RX
UART0_TX

C357 **2.2pF

GND2

USIM_CLK
USIM_DATA
USIM_DET
USIM_RESET
USIM_VCC

90
89
70
88
34

C356

D311

18
19
20
21
22

JTAG_RTCK
JTAG_TCK
JTAG_TDI
JTAG_TDO
JTAG_TMS
JTAG_TRST_N

0
0

C353 and C354 are ready for dealing with filter
fferentia
di
l mode interference and C357 is ready for dealing with
filter common mode interference.
You can choose
the value of the C353, C354 and C357 according to the actual
PCB which is integrated 30mm×30mmALG
Module.

68
9
10
66

100nF

23
24
25
26
27

LGA120H-3030A
VBAT
Note: Pin 49, pin 53 and pin 57 do not
have pad in ME909s module.

RESERVED
RESERVED

USIM_CLK
USIM_DATA
USIM_DET
USIM_RESET
USIM_VCC

67
69

C357

93
42
87
72
30
36

SD_CLK
SD_CMD
SD_DATA0
SD_DATA1
SD_DATA2
SD_DATA3

10uF

60
61

ME909s_MISC

SLEEP_STATUS

C302

43
44
45
46
51
55
105
109
113

RESERVED
RESERVED
RESERVED

UART2_TX
UART2_RX
GPIO1
RESERVED
RESERVED
GPIO2
GPIO3
GPIO4/USIM Switch
GPIO5
GPIO6
GPIO7/Jamming Detection

Test point128
Test point229

ME909s_MISC

125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145

GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND

117
118
119
120

150uF
2

U302

5
8
6
7

150uF
2

GND
NOT used
GND
GND
NOT used
GND
GND
NOT used
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND

NC
NC
NC
NC

R301
R302

99
98

C358

17
16
14

48
49
50
52
53
54
56
57
58
59
106
108
110
112
114
116
121
122
123
124

U302

ADC_1
ADC_2

PCM_SYNC
PCM_CLK
PCM_DIN
PCM_DOUT

96
97

33pF

RESERVED
RESERVED

C301

102
104

RESERVED
RESERVED

POWER_ON_OFF
RESERVED
NC
RESERVED
RESIN_N

C358

MAIN_ANT
AUX_ANT
NC

150uF
2

c
1K

R345

81
103
47
37
100

C123

107
115
111

Note:"**" means that this component is not welded, but need to reserve component solder pad.

HUAWEI ME909s Series LTE LGA Module
Hardware Guide

Appendix B Acronyms and
Abbreviations

Acronym or Abbreviation

Expansion

3GPP

Third Generation Partnership Project

8PSK

8 Phase Shift Keying

Access Point

AUX

Auxiliary

BER

Bit Error Rate

BIOS

Basic Input Output System

CCC

China Compulsory Certification

European Conformity

CMOS

Complementary Metal Oxide Semiconductor

CSD

Circuit Switched Data

Direct Current

DCE

Data Communication Equipment

Down Link

DMA

Direct Memory Access

DTE

Data Terminal Equipment

EDGE

Enhanced Data Rate for GSM Evolution

EIA

Electronic Industries Association

EMC

Electromagnetic Compatibility

ESD

Electrostatic Discharge

European Union

Issue 04 (2016-12-21)

HUAWEI ME909s Series LTE LGA Module
Hardware Guide

Appendix B Acronyms and
Abbreviations

Acronym or Abbreviation

Expansion

FCC

Federal Communications Commission

GMSK

Gaussian Minimum Shift Keying

GPIO

General-purpose I/O

GPRS

General Packet Radio Service

GSM

Global System for Mobile Communication

HBM

Human Body Model

HSDPA

High-Speed Downlink Packet Access

HSPA

Enhanced High Speed Packet Access

HSUPA

High Speed Up-link Packet Access

IMC

Inter-metallic Compound

ISO

International Standards Organization

JTAG

Joint Test Action Group

LED

Light-Emitting Diode

LGA

Land Grid Array

Mobile Originated

Mobile Terminated

Not Connected

NSMD

Non-solder Mask Defined

PCB

Printed Circuit Board

PCM

Pulse Code Modulation

PDU

Protocol Data Unit

PMU

Power Management Unit

PID

Product Identity

Radio Frequency

RoHS

Restriction of the Use of Certain Hazardous
Substances

SMS

Short Message Service

TIS

Total Isotropic Sensitivity

TVS

Transient Voltage Suppressor

UART

Universal Asynchronous Receiver-Transmitter

Up Link

Issue 04 (2016-12-21)

100

HUAWEI ME909s Series LTE LGA Module
Hardware Guide

Appendix B Acronyms and
Abbreviations

Acronym or Abbreviation

Expansion

UMTS

Universal Mobile Telecommunications System

USB

Universal Serial Bus

USIM

Universal Subscriber Identity Module

VIP

Vendor Identity

VSWR

Voltage Standing Wave Ratio

WEEE

Waste Electrical and Electronic Equipment

WCDMA

Wideband Code Division Multiple Access

WWAN

Wireless Wide Area Network

LTE

Long Term Evolution

Issue 04 (2016-12-21)

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Huawei ME909s Series LTE LGA Module Hardware Guide (V100R001 04, English)

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