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Huawei EM820W manual

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Table of contents for the manual

  • Page 1

    HUAWEI EM820W HSPA+ PC Embedded Module Hardware Guide Issue 01 Date 2010-12-31[...]

  • Page 2

    Huawei Technologies Co., Ltd. provide s customers with comprehensive te chnical support and service. For any assistance, please contact our local office or company headquarters . Huawei Technologies Co., Ltd. Huawei Industrial Base, Bantian, Longgang, Shenzhen 518129, People’ s Republic of China Tel: +86-755-28780808 Gl obal Hotline: +86-755-2856[...]

  • Page 3

    HUA WEI EM820W HSP A + PC Embedded Module Hardware Guide About This Docum ent Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co., Ltd. About This Document History Version Date Chapter Descriptions 01 2010-12-31 Creation[...]

  • Page 4

    HUA WEI EM820W HSP A + PC Embedded Module Hardware Guide Contents Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co., Ltd. i Contents 1 Introduction ...................................................................................................................................... 1 1.1 Overview .....[...]

  • Page 5

    HUA WEI EM820W HSP A + PC Embedded Module Hardware Guide Contents Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co., Ltd. ii 4.4.1 Antenna Design Indicators ............................................................................................... 20 4.4.2 Interference ............................[...]

  • Page 6

    HUA WEI EM820W HSP A + PC Embedded Module Hardware Guide T ables Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co., Ltd. iii Tables T able 2-1 Feature ............................................................................................................................... . 2 T able 3-1 Pin defin[...]

  • Page 7

    HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide Figures Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co., Ltd. iv Figures Figure 2-1 Circuit block diagram of the EM820W module ........................................................... 4 Figure 2-2 Application block diagram of the EM820W modul[...]

  • Page 8

    HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide Introduction Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co., Ltd. 1 1 Introduction 1.1 Overview This document describes the hardware application interfaces and air interfaces that are provided when the Huawei EM820W HSP A+ PC Embedded module (h[...]

  • Page 9

    HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide Overall Description Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co., Ltd. 2 2 Overall Description 2.1 About This Chapter This chapter gives a general descripti on of the EM820W module and provides: z Function Overview z Circuit Block Diagram z A[...]

  • Page 10

    HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide Overall Description Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co., Ltd. 3 Feature Description W_Disable#: for turning on/off the RF signal. LED_WWAN#: Active-low LED signal indicating the state of the card Power Interface New message alert, re[...]

  • Page 11

    HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide Overall Description Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co., Ltd. 4 Figure 2-1 Circu it block diagram of the EM820W module 2.4 Application Block Diagram Figure 2-2 Applica tion block diagra m of the EM820W modu le[...]

  • Page 12

    HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide Description of the Application Interfaces Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co., Ltd. 5 3 Description of the Application Interfaces 3.1 About This Chapter This chapter mainly describes the exter nal application interfaces of the EM820W[...]

  • Page 13

    HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide Description of the Application Interfaces Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co., Ltd. 6 Definition of the EM820W Mini PCI Express pins Pin No. Mini PCI Express Standard Description HUAWEI Pin Description Additional Description Directio[...]

  • Page 14

    HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide Description of the Application Interfaces Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co., Ltd. 7 Definition of the EM820W Mini PCI Express pins Pin No. Mini PCI Express Standard Description HUAWEI Pin Description Additional Description Directio[...]

  • Page 15

    HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide Description of the Application Interfaces Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co., Ltd. 8 Definition of the EM820W Mini PCI Express pins Pin No. Mini PCI Express Standard Description HUAWEI Pin Description Additional Description Directio[...]

  • Page 16

    HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide Description of the Application Interfaces Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co., Ltd. 9 Figure 3-1 HUA WEI EM820W power supply t ime sequence. Parameter Remarks Time(Nominal value) Unit Tpd Power Valid to USB D+ high 3.24 sec 3.5 USB S[...]

  • Page 17

    HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide Description of the Application Interfaces Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co., Ltd. 10 The high-speed signal characteristics ar e in accordance with the Eye Pattern T emplates of the USB2.0 signal specification. 3.6 USIM Signals The [...]

  • Page 18

    HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide Description of the Application Interfaces Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co., Ltd. 11 Figure 3-2 USIM in terface schematic on PC Figure 3-3 Pin definition of the SIM card Socket pin1: SIM_VCC pin4: GND pin2: SIM_RESET pin5: NULL pin[...]

  • Page 19

    HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide Description of the Application Interfaces Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co., Ltd. 12 module board before entering the EM820W pr oc essor . There is also an EMI filtering and ESD protection circuit between the SIM ca rd interface an[...]

  • Page 20

    HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide Description of the Application Interfaces Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co., Ltd. 13 Table 3-8 SIM IO requir ements IO Minimum Maximum V IL 0 0.4 V IH 0.7Vcc Vcc V OL –0.3 0.2 Vcc V OH 0.7 Vcc Vcc+0.3 The V OL max of 0.45 V for t[...]

  • Page 21

    HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide Description of the Application Interfaces Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co., Ltd. 14 3.7 W_DISABLE# Signal The W_DISABLE# signal is provided to allow users to disable wireless communications add-in cards. When the W_DI SABLE# signa[...]

  • Page 22

    HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide Description of the Application Interfaces Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co., Ltd. 15 Table 3-11 LED_WW AN signal Pins Name Description Additional Description Direction to Module 42 LED_WWAN Active-low LED signal indicating the stat[...]

  • Page 23

    HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide Description of the Application Interfaces Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co., Ltd. 16 Figure 3-5 LED typica l electro-optical characteristics curves 3.9 WAKE_NB_N Signal W AKE_NB_N (signal that the modul e uses to activate the PC) S[...]

  • Page 24

    HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide RF S p ecifications Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co., Ltd. 17 4 RF Specifications 4.1 Operating Frequencies T able 4-1 shows the RF bands supported by EM820W . Table 4-1 RF band s Operating Band Tx Rx UMTS 2100 (Band I ) 1920–19[...]

  • Page 25

    HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide RF S p ecifications Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co., Ltd. 18 Compensation for WCDMA 850 MHz or 900 MHz: 0.6 dB Compensation for WCDMA 2100 MHz or WCDMA 1900 MHz: 0.8 dB The compensation for different frequenc y bands re lates to [...]

  • Page 26

    HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide RF S p ecifications Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co., Ltd. 19 EM820W Test Value (dBm) Item 3GPP Protocol Claim (dBm) Min Type Max BandII (BER<0.1%) < -104.7 - -110 -108 Band VIII (BER<0.1%) < -103.7 - -110 -108 Band V [...]

  • Page 27

    HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide RF S p ecifications Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co., Ltd. 20 4.4 Antenna Design Requirements 4.4.1 Antenna Desig n Indicators Antenna Efficiency Antenna efficiency is the ratio of the in put power to the radiated or received powe[...]

  • Page 28

    HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide RF S p ecifications Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co., Ltd. 21 z Adding a bandpass filter to the Wi-Fi channel to filter the WCDMA, GSM850, GSM900, DCS, and PCS signals z Ensuring sufficient isolatio n between the master antenna of[...]

  • Page 29

    HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide RF S p ecifications Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co., Ltd. 22 Envelope Correlation C oefficient The envelope correlation coefficient indi cates the correlation between different antennas in a multi-antenna system (mas ter antenna,[...]

  • Page 30

    HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide RF S p ecifications Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co., Ltd. 23 into account. The appropriate antenna gain pr olongs the service life of relevant batteries. The following antenna gain is reco mmended for antennas on laptops: z Gain [...]

  • Page 31

    HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide RF S p ecifications Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co., Ltd. 24 GSM/WCDMA Antenna Requirements Bandwidth 70 MHz in GSM850 80 MHz in GSM900 170 MHz in DCS 140 MHz PCS 70 MHZ in WCDMA850 80 MHz in WCDMA900 140 MHz in WCDMA1900 250 MHz[...]

  • Page 32

    HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide RF S p ecifications Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co., Ltd. 25 Active Tests z TRP: GSM, WCDMA, CDMA, TD-SCDMA, and L TE systems z TIS: GSM, WCDMA, CDMA, TD-SCDMA, and L TE systems Figure 4-1 shows the SA TIMO microwave testing cham[...]

  • Page 33

    HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide RF S p ecifications Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co., Ltd. 26 Figure 4-2 Recommend ed antenna positions z It is recommended that the antenna patte rn be designed based on the horizontal polarized omnidirectional pattern that fa ci[...]

  • Page 34

    HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide RF S p ecifications Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co., Ltd. 27 Figure 4-3 shows the ESD protection circuit recommended for the antenna interface. Figure 4-3 ESD protection circuit recommended for the antenna inter face It is recomm[...]

  • Page 35

    HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide Electric al and Reliability Features Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co., Ltd. 28 5 Electrical and Reliability Features 5.1 About This Chapter This chapter describes the electrical and reliability features of t he interfaces in the E[...]

  • Page 36

    HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide Electric al and Reliability Features Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co., Ltd. 29 Table 5-1 W orking and storage temperature s and humidity for the EM820W module Specification Minimum Value Maximum Value Unit Normal working temperatu[...]

  • Page 37

    HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide Electric al and Reliability Features Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co., Ltd. 30 5.5 Power Supply Features 5.5.1 Power Supply The EM820W receives its power supply fr om a 3.3 V power source, which must satisfy all requirements of PC[...]

  • Page 38

    HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide Electric al and Reliability Features Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co., Ltd. 31 Description Band Test Value Units Power (dBm) 348 1 dBm Tx Power 395 10 dBm Tx Power Band I 585 mA 24 dBm Tx Power 350 1 dBm Tx Power 409 10 dBm Tx Pow[...]

  • Page 39

    HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide Electric al and Reliability Features Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co., Ltd. 32 Description Test Value Units PCL Configuration 225 2 Up/1 Down 345 1 Up/1 Down 514 mA 5 2 Up/1 Down 143 1 Up/1 Down GPRS900 195 mA 15 2 Up/1 Down 236 1[...]

  • Page 40

    HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide Electric al and Reliability Features Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co., Ltd. 33 Description Test Value Units PCL Configuration 194 1 Up/1 Down 257 2 Up/1 Down 341 mA 2 4 Up/1 Down 142 1 Up/1 Down 177 2 Up/1 Down EDGE1900 218 mA 10 [...]

  • Page 41

    HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide Electric al and Reliability Features Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co., Ltd. 34 Item Test Condition Standard Low-temperature working Temperature: –30±2ºC Test duration: 24 h IEC60068 High-temperature working Temperature: 75±2?[...]

  • Page 42

    HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide Electric al and Reliability Features Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co., Ltd. 35 Item Test Condition Standard Drop test First case: 0.3 m in height. Drop the EM820W module on the marble terrace with one surface facing downwards twic[...]

  • Page 43

    HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide Mechanical S pecifications Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co., Ltd. 36 6 Mechanical Specifications 6.1 Dimensions and Interfaces 6.1.1 Dimensions and Interfaces of EM820W The dimensions of EM820W are 50.95 mm (length) × 30 mm (wid [...]

  • Page 44

    HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide Mechanical S pecifications Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co., Ltd. 37 Figure 6-2 shows a 52-pin Mini PCI Expr ess connector (take the Molex 67910002 as an example). Figure 6-2 Dimensions of the Mini PCI E xpress c onnect or 6.3 Spe[...]

  • Page 45

    HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide Mechanical S pecifications Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co., Ltd. 38 Step 2 Press downwards to fix the EM820W in the module slot. Step 3 Use a screwdriver to fix the EM820W on t he main board of the PC with two screws provided in [...]

  • Page 46

    HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide Mechanical S pecifications Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co., Ltd. 39 6.3.2 Romoving the EM820W from the Main Board of PC Step 1 Disconnect the antenna cables from the EM820W. You can lift the connectors using a small screwdriver. [...]

  • Page 47

    HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide Appendix A Circuit s of T ypical Interfaces Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co., Ltd. 40 7 Appendix A Circuits of Typical Interfaces Figure 7-1 Circu its of typica l interfaces in the EM82 0W module[...]

  • Page 48

    HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide Appendix B Acronyms and Abbreviations Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co., Ltd. 41 8 Appendix B Acronyms and Abbreviations Acronym or Abbreviation Expansion BB Baseband CE European Conformity CS Coding Scheme CSD Circuit Switched Dat[...]

  • Page 49

    HUA WEI EM820W HSP A+ PC Embedded Module Hardware Guide Appendix B Acronyms and Abbreviations Issue 01 (2010-12 -31) Huawei Proprietary and Confidential Copyright © Huawei Technologi es Co., Ltd. 42 Acronym or Abbreviation Expansion NTC negative temperature coefficient PBCCH Packet Broadcast Control Channel PCB printed circuit board PDU protocol d[...]