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Sierra Wireless MC5725 Hardware Integration Manual

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CDMA and GSM / UMTS Mini Card
Hardware Integration Guide
Proprietary and Confidential
Includes:
    MC5725 / MC5725V
    MC5727 / MC5727V
    MC5728 / MC5728V
MC8775 / MC8775V
MC8780 / MC8781
MC8785V
MC8790 / MC8790V
MC8791V
2130114
Rev 1.9.1

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Summary of Contents for Sierra Wireless MC5725

  • Page 1 CDMA and GSM / UMTS Mini Card Hardware Integration Guide Proprietary and Confidential Includes:     MC5725 / MC5725V     MC5727 / MC5727V     MC5728 / MC5728V MC8775 / MC8775V MC8780 / MC8781 MC8785V MC8790 / MC8790V MC8791V 2130114 Rev 1.9.1...
  • Page 3 Do not operate the Sierra Wireless modem in any aircraft,  whether the aircraft is on the ground or in flight. In aircraft, the  Sierra Wireless modem MUST BE POWERED OFF. When  operating, the Sierra Wireless modem can transmit signals that  could interfere with various onboard systems. Note: Some airlines may permit the use of cellular phones while the aircraft is on the ground and the door is open. Sierra Wireless modems may be used at this time. The driver or operator of any vehicle should not operate the  Sierra Wireless modem while in control of a vehicle. Doing so  will detract from the driver or operatorʹs control and operation  of that vehicle. In some states and provinces, operating such ...
  • Page 4 CDMA and GSM / UMTS Mini Card Hardware Integration Guide REVENUE OR ANTICIPATED PROFITS OR REVENUE  ARISING OUT OF THE USE OR INABILITY TO USE ANY  SIERRA WIRELESS PRODUCT, EVEN IF SIERRA WIRELESS  AND/OR ITS AFFILIATES HAS BEEN ADVISED OF THE  POSSIBILITY OF SUCH DAMAGES OR THEY ARE  FORESEEABLE OR FOR CLAIMS BY ANY THIRD PARTY. Notwithstanding the foregoing, in no event shall Sierra  Wireless and/or its affiliates aggregate liability arising under or  in connection with the Sierra Wireless product, regardless of  the number of events, occurrences, or claims giving rise to  liability, be in excess of the price paid by the purchaser for the  Sierra Wireless product. Patents Portions of this product may be covered by some or all of the  following US patents: 5,515,013 5,629,960 5,845,216 5,847,553 5,878,234 5,890,057 5,929,815 6,169,884 6,191,741 6,199,168 6,339,405 6,359,591 6,400,336 6,516,204 6,561,851 6,643,501 6,653,979 6,697,030...

  • Page 5: Revision History

    • Corrected LED characteristics (“Faster blink” on page • Added content for MC5725, MC5725V, and MC8785V Rev 1.9.1 Feb.09 Proprietary and Confidential In the event of a discrepancy in values between this guide and the Product Specification Document (PSD), the PSD takes precedence.
  • Page 6 CDMA and GSM / UMTS Mini Card Hardware Integration Guide Revision Release Changes number date • Sep 2008 Added content for MC8790, MC8790V, MC8791V, and MC8792V Oct 2008 • Added AT command entry timing note and Linux content to testing chapter •...

  • Page 7: Table Of Contents

    Table of Contents Introduction ..........11 The Universal Development Kit .
  • Page 8 Radiated sensitivity measurement........43 Sierra Wireless’ sensitivity testing and desensitization investigation . . 43 OTA test chamber configuration .
  • Page 9 Table of Contents USIM operation ..........67 Extended AT commands .
  • Page 10 CDMA and GSM / UMTS Mini Card Hardware Integration Guide Antenna design ..........104 General antenna design requirements .

  • Page 11: Introduction

    1: Introduction Sierra Wireless’ Mini Card modules form the radio component  for the products in which they are embedded. Mini Cards are  available for use on CDMA and GSM networks, including: MC5725 M C5725V M C5727 M C5727V M C5728 M C5728V •   /     /     /     /     /   — Note: Throughout this Operate on CDMA networks using the CDMA IS‐95A, 1X,  document, MC57xx and MC87xx and 1xEV‐DO (IS‐856)  network standards, and support ...

  • Page 12: Required Connectors

    CDMA and GSM / UMTS Mini Card Hardware Integration Guide Required connectors When integrating these modules into your host device, you  Note: Contact vendors before need the following connector types: choosing your connectors — the numbers included here are for • RF cables that mate with Hirose U.FL connectors (model  reference only. Choose U.FL #CL331‐0471‐0‐10). Modules include one or two  connectors that are appropriate connector jacks depending on individual module support  to your design. for diversity or GPS functionality.

  • Page 13: Related Documents

    MC5725V / MC5727 / MC5727V / MC5728 / MC5728V. For MC87xx-specific commands, see UMTS Modems Supported AT Command Reference (Document 2130617). CDMA Extended AT Command Proprietary AT commands for the MC5725 / MC5725V / Reference (Document MC5727 / MC5727V / MC5728 / MC5728V. For MC87xx- 2130621) specific commands, see MC87xx Modem Extended AT Command Reference (Document 2130616).
  • Page 14 (ESD) immunity. Order this document from www.iec.ch. MC5725 Mini Card Product Features, mechanical and electrical specifications, and Specification (Document standards compliance of the MC5725. 2130663) MC5725V Mini Card Product Features, mechanical and electrical specifications, and Specification (Document standards compliance of the MC5725V.
  • Page 15 Introduction Table 1-1: Related documentation (Continued) Document title Description MC8792V PCI Express Mini Features, mechanical and electrical specifications, and Card Product Specification standards compliance of the MC8792V. (Document 2131033) MC87XX Modem CnS CnS (Control and Status) messages supported by the Reference (Document MC87xx series of modems.
  • Page 16 CDMA and GSM / UMTS Mini Card Hardware Integration Guide Proprietary and Confidential 2130114 In the event of a discrepancy in values between this guide and the Product Specification Document (PSD), the PSD takes precedence.

  • Page 17: Power Interface

    2: Power Interface Overview of operation Note: This chapter contains information for CDMA (MC57xx) and GSM (MC87xx) modules. Information that is unique to specific module types is clearly identified. The module is designed to use a 3.3V (nominal) power supply,  provided by the host. It is the host’s responsibility to provide  safe and continuous power to the module at all times; the  module does NOT have an independent power supply, or  protection circuits to guard against electrical issues. The host controls the module’s power state using the   signal as shown in Figure 2‐1. The signal is driven  W_Disable# low by the host to power off the modem, or left floating (high  impedance) to power on the modem. The module also  monitors its supply voltage and requests shutdown if the  Voltage monitoring state machine supply is insufficient (see ...

  • Page 18: Electrostatic Discharge (Esd)

    CDMA and GSM / UMTS Mini Card Hardware Integration Guide Note: The Product Specification Document’s pin connection table describes the internal structure of the module. For example, a Mini Card standard-compliant host platform provides +3.3Vaux on pin 24, but this pin is not connected internally on the MC8775V. Thus, the pin is flagged as ‘No connect’.

  • Page 19: Disconnected State

    Power Interface Low power (“airplane mode”) • The module is active, but RF is disabled. State machines are implemented in the module to monitor the  power supply and operating temperature. Disconnected state This state occurs when there is no power to the module — the  Note: The difference between host power source is disconnected from the module and all  the Disconnected and Off states voltages associated with the module are at 0 V. is that, in the Off state, the module is still connected to the Whether the host device is also powered off depends on the  power source and draws minimal power rail design. If the connection between the power rail ...

  • Page 20: Voltage Monitoring State Machine

    CDMA and GSM / UMTS Mini Card Hardware Integration Guide For instructions on using the commands, refer to AT Command  Set for User Equipment (UE) (Release 6) (+CFUN=0 command),  CDMA CnS Reference (Document 2130754)  (CNS_RADIO_POWER [0x1075] command), or MC87XX  Modem CnS Reference (Document 2130602) (Disable Modem  command). Voltage monitoring state machine The module has a state machine to monitor the VCC3.3  (3.0 V‐3.6 V) supply (Figure 2‐2). Figure 2-2: Voltage monitoring state machine current_vcc > VOLT_LO_NORM Host asserts Low Supply Voltage W_Disable# Critical (Low power mode) current_vcc <...
  • Page 21 # signal low for: W_Disable ≥ •  50 ms (MC8775 / MC8775V) ≥  500 ms (MC5725 / MC5725V / MC5727 / MC5727V /   • MC5728 / MC5728V / MC8780 / MC8781 / MC8785V /  MC8790 / MC8790V / MC8791V / MC8792V) Note: The module ignores changes in the W_Disable# line for the first 10.5 seconds after it enters a powered-on state. The module powers on when the host device leaves the  # signal floating (high impedance) as shown in  W_Disable Figure 2‐1 on page 17.

  • Page 22: Temperature Monitoring State Machine

    CDMA and GSM / UMTS Mini Card Hardware Integration Guide The host has the option, at this point, of driving    W_Disable# low (forcing the module to power off) to prevent damage  to the unit. Temperature monitoring state machine The module has a state machine to monitor the module’s  temperature (Figure 2‐3). Figure 2-3: Temperature monitoring state machine Host asserts High Temperature current_temp <= TEMP_HI_NORM W_Disable# Critical (Low power mode) current_temp >...
  • Page 23 State change: Power off / on The module begins a shutdown sequence and powers off if it  has been in a powered‐on state for more than 10.5 seconds and  the host device drives the  # signal low for: W_Disable ≥  50 ms (MC8775 / MC8775V) • ≥  500 ms (MC5725 / MC5725V / MC5727 / MC5727V /   • MC5728 / MC5728V / MC8780 / MC8781 / MC8785V /  MC8790 / MC8790V / MC8791V / MC8792V) Note: The module ignores changes in the W_Disable# line for the first 10.5 seconds after it enters a powered-on state. The module powers on when the host device leaves the  # signal floating (high impedance) as shown in  W_Disable Figure 2‐1 on page 17.

  • Page 24: Inrush Currents

    CDMA and GSM / UMTS Mini Card Hardware Integration Guide The module sends a CnS notification (Return Radio  Temperature—0x0008) to the host indicating that it is now  in low power mode. The host has the option, at this point, of driving    W_Disable# low (forcing the module to power off) to prevent damage  to the unit. Note: (MC57xx only) If the ambient temperature of the module exceeds 60 °C, the RF level is automatically lowered for max power transmission.
  • Page 25 Power Interface Figure 2-5: Inrush model - MC87xx MC87xx 2 ohm 4.5m ON/OFF 47uF 10uF 0.1m Inrush current via application of host power supply This event occurs when the host’s supply is enabled, charging  the input capacitors on the Mini Card power rail. The switch  shown in Figure 2‐4 and Figure 2‐5 is open (typically) when  this event occurs. To limit the inrush current and stabilize the supply of power to  Note: In some circumstances, the module, sufficient capacitance must be added to the host  depending on temperature and power rail. The recommended capacitance range is  the components in use, two or 470 μF ‐ 1000 μF.

  • Page 26: Timing Requirements

    The supply voltage must remain within specified tolerances  while this is occurring. Power-up timing The unit is ready to enumerate with a USB host within a  maximum of 5.1 seconds (depending on module type) after  power‐up. (Most modules enumerate within 4 seconds.) Note: The actual startup time may vary between the different module types (for example, MC5725 versus MC8775). Figure 2-6: Power-up timing diagram 3.3V W _Disable# Enum eration USB D+ Startup tim e Note: Startup time is the time after power-up when the modem is ready to begin the enumeration sequence.

  • Page 27: Current Consumption

    Power Interface the diagram. Beyond the 3.5:1 VSWR as recommended to be  worst‐case in Table A‐5, the current draw could increase  beyond 2.75 A to 3.5 A. At maximum GSM transmit power, the input current can  remain at 2.4 A for up to 25% of each 4.6 ms GSM cycle  (1.15 ms) after initially reaching a peak of 2.75 A average over  100 μs and with an instantaneous peak current of 3.5 A. Figure 2-7: GSM transmit power wave form 2.75A peak 2.75 3.5:1 VSWR = 2.75A 1:1 VSWR = 2.40A Current 0.15 25 µs 1.15 ms 4.6 ms Current consumption Current consumption depends on the module’s operating  mode at any given time. This section describes: Current consumption for both module types (MC57xx and ...
  • Page 28 CDMA and GSM / UMTS Mini Card Hardware Integration Guide Note: For sleep modes, the values shown are for the actual sleep state. The module wakes at intervals to control timing and check for   traffic — at these moments the current consumption is higher Table 2-3: Current specifications (MC57xx) Current consumption (mA)
  • Page 29 Power Interface Table 2-4: Current specifications (MC8775 / MC8775V) (Continued) Description Band Units Notes / Configuration With Sleep mode deactivated (assumes USB bus is fully suspended during measurements) HSDPA / WCDMA Bands I, II, V DRX cycle = 8 (2.56 s) GSM / GPRS / EDGE All MFRM = 5 (1.175 s) Low Power Mode (LPM) / Offline Mode...
  • Page 30 CDMA and GSM / UMTS Mini Card Hardware Integration Guide Table 2-4: Current specifications (MC8775 / MC8775V) (Continued) Description Band Units Notes / Configuration EDGE current Quad GSM 1 Rx / 1 Tx slot (14 dBm Tx Power, averaged over 2 Rx / 1 Tx slot multiple Tx frames) 4 Rx / 2 Tx slot...
  • Page 31 Power Interface Table 2-5: Current specifications (MC8780 / MC8781) (Continued) Description Band Units Notes / Configuration (Maximum power) Averaged WCDMA / HSDPA data current consumption (includes USB bus current) WCDMA UMTS bands 384 kbps at 20 dBm Tx power 0 dBm Tx power HSUPA 2 Mbps at 20 dBm Tx power 0 dBm Tx power...
  • Page 32 CDMA and GSM / UMTS Mini Card Hardware Integration Guide Table 2-6: Current specifications (MC8785V) (Continued) Description Band Units Notes / Configuration Low Power Mode (LPM) / Offline Mode RF disabled, but module is operational This state is entered when Watcher (or other application) shuts down / turns off the radio.
  • Page 33 Power Interface Table 2-7: Current specifications (MC8790 / MC8790V / MC8791V / MC8792V) Description Band Units Notes / Configuration With Sleep mode deactivated (assumes USB bus is fully suspended during measurements) HSDPA / WCDMA UMTS bands DRX cycle = 8 (2.56 s) GSM / GPRS / EDGE GSM bands MFRM = 5 (1.175 s)

  • Page 34: Modes

    CDMA and GSM / UMTS Mini Card Hardware Integration Guide Table 2-8: Miscellaneous DC power consumption (MC8780 / MC8781 / MC8785V / MC8790 / MC8790V / MC8791V / MC8792V) Signal Description Band Units Notes / Configuration μ Module OFF All bands Full operating temperature leakage current range...

  • Page 35: Usage Models

    Power Interface The SED process is implemented as follows: The modem tracks consecutive resets of the modem within  • 30 seconds of power‐on. After a third consecutive reset occurs, the modem automati‐ • cally waits up to 30 seconds in boot‐and‐hold mode,  waiting for a firmware download to resolve the power‐cycle  problem. After 30 seconds (if no firmware download begins), the  • modem continues to power‐on. If the modem resets again within 30 seconds of power‐on,  • the modem again waits in boot‐and‐hold mode. This process continues until the unexpected power‐cycle issue  is resolved—either a firmware download occurs, or the  modem doesn’t reset spontaneously within 30 seconds of  power‐on. Usage models Usage models can be used to calculate expected current  consumption. A sample usage model is provided in Table 2‐9,  based on the values in Table 2‐3 for a CDMA module. Table 2-9: Power consumption of a sample application Used by a field worker Used for remote data (data only) logging Upload (module...
  • Page 36 CDMA and GSM / UMTS Mini Card Hardware Integration Guide Proprietary and Confidential 2130114 In the event of a discrepancy in values between this guide and the Product Specification Document (PSD), the PSD takes precedence.

  • Page 37: Rf Integration

    3: RF Integration This chapter provides information related to the RF (Radio  Frequency) integration of the MC57xx and MC87xx modules  with host devices. The frequencies of operation and perfor‐ mance specifications vary depending on the module model  used. RF performance parameters for typical modules are  listed in Table 3‐1 and Table 3‐2. Note: Values in this guide are taken from the appropriate product Related documents specification documents (PSDs) (listed in page 13) — in the case of a discrepancy between this document and the relevant PSD, use the value listed in the PSD.
  • Page 38 CDMA and GSM / UMTS Mini Card Hardware Integration Guide Table 3-2: MC87xx— RF parameters (Continued) Product Band Frequencies Conducted Rx Conducted (MHz) Sensitivity (dBm) Conducted Transmit Sensitivity Power Typical Maximum (dBm) (dBm) MC8775 Band I Tx: 1920–1980 -110.5 -109 +23 ±...

  • Page 39: Rf Connection

    RF Integration RF connection When attaching an antenna to the module: Use a Hirose U.FL connector (model  • Note: To disconnect the U.FL #CL331‐0471‐0‐10) to attach an antenna to a  antenna, make sure you use the connection point on the module, as shown in Figure 3‐1 (the  Hirose U.FL connector removal main RF connector on the top side; the diversity RF or GPS  tool (P/N UFL-LP-N-2(01)) to connector on the bottom side). prevent damage to the module or coaxial cable assembly. Match coaxial connections between the module and the  • antenna to 50 Ω.

  • Page 40: Shielding

    CDMA and GSM / UMTS Mini Card Hardware Integration Guide mainly an issue for host designs that have signals traveling  along the length of the module, or circuitry operating at  both ends of the module interconnects. Shielding The module is fully shielded to protect against EMI and to  ensure compliance with FCC Part 15 ‐ “Radio Frequency  Devices” (or equivalent regulations in other jurisdictions). Note: The module shields must NOT be removed. Antenna and cabling When selecting the antenna and cable, it is critical to RF perfor‐ Note: Values in this guide are mance to match antenna gain and cable loss. taken from the appropriate product specification documents Choosing the correct antenna and cabling Related...

  • Page 41: Interference And Sensitivity

    RF Integration tions, the placement of the antenna is still very important —  if the host device is insufficiently shielded, high levels of  broadband or spurious noise can degrade the module’s  performance. Connecting cables between the module and the antenna  • must have 50 Ω impedance. If the impedance of the module  is mismatched, RF performance is reduced significantly. • Antenna cables should be routed, if possible, away from  noise sources (switching power supplies, LCD assemblies,  etc.). If the cables are near the noise sources, the noise may  be coupled into the RF cable and into the antenna. Disabling the diversity antenna MC57xx  —   I f your host device is not designed to use the  • MC57xx module’s diversity antenna, terminate the interface  with a 50 Ω load. MC8780  /   M C8781  /   M C8785V  /   M C8790  /   M C8790V  / •...

  • Page 42: Device-Generated Rf

    CDMA and GSM / UMTS Mini Card Hardware Integration Guide range may cause spurious response, resulting in decreased  Rx performance. The Tx power and corresponding broadband noise of other  • wireless devices may overload or increase the noise floor of  the module’s receiver, resulting in Rx desense. The severity of this interference depends on the closeness of  the other antennas to the module’s antenna. To determine  suitable locations for each wireless device’s antenna,  thoroughly evaluate your host device’s design. Device-generated RF All electronic computing devices generate RF interference that  Note: The module can cause can negatively affect the receive sensitivity of the module. interference with other devices such as hearing aids and on- The proximity of host electronics to the antenna in wireless  board speakers.

  • Page 43: Radiated Sensitivity Measurement

    Although the module has been designed to meet these carrier  requirements, it is still susceptible to various performance  inhibitors. As part of the Engineering Services package, Sierra Wireless  offers modem OTA sensitivity testing and desensitization  (desense) investigation. For more information, contact your  account manager or the Sales Desk (see page 5). Note: Sierra Wireless has the capability to measure TIS (Total Isotropic Sensitivity) and TRP (Total Radiated Power) according to CTIA's published test procedure. OTA test chamber configuration To make OTA measurements, a test chamber is required. A  full‐size anechoic chamber is not necessarily required.  Figure 3‐2 shows a small anechoic chamber manufactured by  Rev 1.9.1 Feb.09 Proprietary and Confidential In the event of a discrepancy in values between this guide and the Product Specification Document (PSD), the PSD takes precedence.

  • Page 44: Path Loss Calculation

    CDMA and GSM / UMTS Mini Card Hardware Integration Guide Lindgren. This does not provide power to the same accuracy  as a full‐size anechoic chamber, but is sufficient for this appli‐ cation. A base station simulator, such as an Agilent 8960  (shown) or Rohde & Schwarz CMU200, is used to provide FER  (Frame Error Rate) measurements. Figure 3-2: Anechoic chamber Agilent 8960 call box Approx . 1 m Path loss calculation The chamber is calibrated for path loss using a reference  antenna with known gain that is feeding a spectrum analyzer  or power meter. This makes it possible to determine the  radiated power available to the receiving antenna and the path  loss: Radiated Power = Measured received power + Any cable losses - Reference receive antenna gain Path Loss =...

  • Page 45: Positioning The Dut (Device Under Test)

    RF Integration Positioning the DUT (Device Under Test) To achieve meaningful results, the device must be positioned  such that the peak of the receive antenna pattern is pointed  toward the source antenna. Theoretically, the best way to  accomplish this is to modify the DUT so that antenna output is  through coaxial cable. The device is then rotated until the  receive power is maximized. Alternate path loss calculation method Path loss can also be calculated, without modifying the DUT,  by using the transmit capabilities of the unit. This method of  calculation is possible because the position that maximizes  transmitter power provides a sufficiently accurate location for  receiver desense measurements. The unit is placed in a call and  set to generate peak output power, either through a test mode,  or by configuring the base station simulator to issue the appro‐ priate command. The unit is then positioned for maximum  power as determined by the call box. Sensitivity vs. frequency For the MC57xx, sensitivity is defined as the input power level  in dBm that produces a FER (Frame Error Rate) of 0.5%. Sensi‐ tivity should be measured at all CDMA frequencies across  each band. For example, Figure 3‐3 illustrates sensitivity in the  US PCS band. There are 25 physical channels with a spacing of  50 KHz; the first CDMA channel is CH25. For the MC87xx, sensitivity is defined as the input power level  in dBm that produces a BER (Bit Error Rate) of 2% (GSM) or  0.1% (UMTS). Sensitivity should be measured at all GSM /  UMTS frequencies across each band, as shown in Figures 3‐4 ...
  • Page 46 CDMA and GSM / UMTS Mini Card Hardware Integration Guide Sensitivity test results — MC57xx Figure 3‐3 shows typical test results for the US PCS band for  both conducted and over‐the‐air connections. The conducted  (or ʺconnectorizedʺ) measurements were made using an RF  coaxial cable connection. The over‐the‐air measurements were  made using both an external antenna and a typical device  antenna.  Figure 3-3: US PCS sensitivity measurements In this test, the external antenna performed best — the  expected result if a high efficiency antenna with some gain is  used. The internal antenna has less gain than the external  antenna, so the internal antennaʹs performance is offset above  the external antenna. The antenna gain must be known to  determine whether the offset is strictly the result of antenna  gain or if broadband desense is present. Narrowband desense  can be seen at channels 325, 625, and 925. Proprietary and Confidential 2130114 In the event of a discrepancy in values between this guide and the Product Specification Document (PSD), the PSD takes precedence.
  • Page 47 RF Integration Sensitivity test results — MC87xx Figures 3‐4 through 3‐11 show typical test results for  conducted connections for the GSM850, GSM900, GSM1800,  GSM1900, UMTS850, UMTS1900, and UMTS2100 bands. The  conducted measurements were made using an RF coaxial cable  connection. Figure 3-4: GSM850 sensitivity for BERII < 2% Figure 3-5: EGSM900 sensitivity for BERII < 2% Rev 1.9.1 Feb.09 Proprietary and Confidential In the event of a discrepancy in values between this guide and the Product Specification Document (PSD), the PSD takes precedence.
  • Page 48 CDMA and GSM / UMTS Mini Card Hardware Integration Guide Figure 3-6: DCS1800 sensitivity for BERII < 2% Figure 3-7: PCS1900 sensitivity for BERII < 2% Proprietary and Confidential 2130114 In the event of a discrepancy in values between this guide and the Product Specification Document (PSD), the PSD takes precedence.
  • Page 49 RF Integration Figure 3-8: UMTS850 sensitivity for BER < 0.1% Figure 3-9: UMTS900 sensitivity for BER < 0.1 Rev 1.9.1 Feb.09 Proprietary and Confidential In the event of a discrepancy in values between this guide and the Product Specification Document (PSD), the PSD takes precedence.
  • Page 50 CDMA and GSM / UMTS Mini Card Hardware Integration Guide Figure 3-10: UMTS1900 sensitivity for BER < 0.1% Figure 3-11: UMTS2100 sensitivity for BER < 0.1% Proprietary and Confidential 2130114 In the event of a discrepancy in values between this guide and the Product Specification Document (PSD), the PSD takes precedence.

  • Page 51: Audio Interface

    4: Audio Interface The MC5725V  /   M C5727V  /   MC5728V /  M C8775V  /   M C8785V  / Note: Values in this guide are   M C8790V  /   M C8791V  /   M C8792V modules support four audio  taken from the appropriate modes that may be required by a host audio system: product specification documents Related (PSDs) (listed in Handset...

  • Page 52: System Block Diagrams

    CDMA and GSM / UMTS Mini Card Hardware Integration Guide Usually, the interface between the module and the host audio  system is set to line‐level amplitudes with no transducer  considerations. The responsibility of the module codec or host  codec for special functions is detailed in Table 4‐2. Table 4-2: Functions - responsibility codecs Function Responsible Codec Phone oriented (e.g., echo Module codec cancellation, FIR filtering) Path-switching Host codec Transducer interfaces Host codec Adjustable gain / volume settings Either DTMF / ringer tone generation Either...
  • Page 53 Audio Interface Figure 4-1: MC5725V / MC5727V Audio system block +12dB TX ADC Encoder MIC_P TX_HPF_DIS_N -3dB TX_SLOPE_FILT_DIS_N -84dB MIC_N 57.3mVrms nsSwitch TxPCMFilt TxVolume CodecTxGain Audio In @ 0dBm0 HPF & NS & 13 bit A/D Tx FIR 13K CELP/ Slope AAGC EVRC...
  • Page 54 CDMA and GSM / UMTS Mini Card Hardware Integration Guide Figure 4-2: MC5728V Audio system block +12dB TX ADC Encoder TX_HPF_DIS_N -3dB MIC1P TX_SLOPE_FILT_DIS_ -84dB MIC1N TxPCMFilt TxVolume 57.3mVrms nsSw itch CodecTxGain Audio In @ 0dBm0 HPF & NS & 13 bit A/D Tx FIR 13K CELP/...

  • Page 55: Modes Of Operation

    Audio Interface Note: Data mixing is not supported. If mixing of voice signal is required, it must be done by the host processor. Figure 4-3: MC8775V / MC8785V / MC8790V / MC8791V / MC8792V Audio system block PCM Audio interface +12dB TX ADC Encoder...

  • Page 56: Echo Cancellation Support

    CDMA and GSM / UMTS Mini Card Hardware Integration Guide For Handset and Headset mode, the threshold of pain (+120  dBSPL) must not be exceeded at the maximum volume setting.  A good target for the medium volume setting is +94 dBSPL, as  this is a typical level for conversational speech. Most audio gain should be added to the host audio front end  (within the PDA style codec gain blocks or amplifiers between  the host codec and transducers). Refer to the appropriate Mini  Card Product Specification Document for reference levels on  the modem receive and transmit side.  Echo cancellation support The Mini Card offers four modes of echo cancellation to  support unique end‐unit audio capabilities (echo cancellation  can also be turned off completely). All echo cancellation is  near‐end (mobile TX) cancellation only. The network provides  some level of far‐end echo cancellation. Table 4-3: Echo cancellation details Mode Details Handset Short echo path (<16 ms travel time from speaker to •...

  • Page 57: Audio Signal Interface

    Audio Interface Table 4-3: Echo cancellation details Mode Details Speakerphone Long echo path (<64 ms travel time from speaker to • microphone) Loud echo • • For use with speakerphone applications with high distortion • Half-duplex algorithm, very aggressive in near-end Tx muting to eliminate transmitted echo Audio signal interface The differential microphone input offers superior noise ...

  • Page 58: Audio Function Partitioning

    CDMA and GSM / UMTS Mini Card Hardware Integration Guide Table 4-4: Primary audio signal interface Signal Pin # Type Directions Description SPK_P Analog Output Non-inverted speaker output (+) SPK_N Analog Output Inverted speaker output (-) Table 4-5: PCM digital audio signal interface Signal Pin # Type...
  • Page 59 Audio Interface Audio path mixing—required for voice memo recording  • and playback via multiple audio paths Transducer interface—host provides acoustic drivers, must  • occur outside of path switching and mixing These functions can be performed in either host or module  codec, depending on balance of component selection and  engineering resources: Volume settings—adjustable gain settings based on user  • interface selections Sidetone—careful placement of sidetone gain control is  • required to prevent the need to adjust sidetone gain with  varying volume settings Rev 1.9.1 Feb.09 Proprietary and Confidential In the event of a discrepancy in values between this guide and the Product Specification Document (PSD), the PSD takes precedence.
  • Page 60 CDMA and GSM / UMTS Mini Card Hardware Integration Guide Proprietary and Confidential 2130114 In the event of a discrepancy in values between this guide and the Product Specification Document (PSD), the PSD takes precedence.

  • Page 61: Host / Module Interfaces

    5: Host / Module Interfaces This chapter provides information about specific host interface  pin assignments, the host‐module communication interface  (USB interface), LED outputs, USIM interface, and lists  extended AT commands that may be useful for hardware  integration testing. Host interface pin details Note: On any given interface (USB, USIM, etc.) leave unused inputs and outputs as no-connects. Detailed connector pin information is available in the product  specification documents for each module—refer to these  documents when integrating modules into your host devices. The following are specific integration considerations relating  to the host interface connector pins: • On any given interface (USB, USIM, etc.), leave unused  inputs and outputs as no‐connects. Table 5‐1 describes MC8775V / MC8785V / MC8790V /  • MC8791V / MC8792V‐specific pins that are rated for 2.6 V.  Reference these pins to the MSM_2.6 V rail (pin 11) as the ...

  • Page 62: Usb Interface

    • USB‐compliant transceivers USB handshaking Note: If you are using the Windows or Linux drivers provided by Sierra Wireless, you can skip this section — it is intended for devel- opers who are creating their own USB drivers. The host must act as a USB host device to interface with the  module. Proprietary and Confidential 2130114 In the event of a discrepancy in values between this guide and the Product Specification Document (PSD), the PSD takes precedence.
  • Page 63 Host / Module Interfaces The module uses the USB standard Suspend and Resume  functions (described further) to control the sleep and wakeup  states. For detailed specifications of Resume and Suspend,  refer to Universal Serial Bus Specification, Rev 2.0. Suspending The module supports USB Suspend mode. When the module enters suspend mode, it shuts down the  USB clock to save power. While in the suspend state: • The module provides power to the D+/‐ interface to signal  its current state to the host device. • The host must maintain the VCC_3V3 voltage. Refer to Universal Serial Bus Specification, Rev 2.0 for critical  timing parameters for the suspend state. Resume USB activity may be resumed by either the USB host or by the  module. If the host initiates USB activity: The USB transceiver detects the change in bus activity and  triggers the USB_RESUME interrupt to the moduleʹs  processor. The module then enables its USB clock and responds to the  host. If the module initiates USB communication (Remote Wakeup): The module enables its USB clock. The module enables the USB transceiver. The module sends the resume signal for at least 20 ms. Refer to Universal Serial Bus Specification, Rev 2.0 for critical  timing parameters for the resume state. Host USB driver requirements The USB driver on the host device must meet these critical  requirements: The host USB driver must support remote wakeup, resume, ...

  • Page 64: Led Output

    CDMA and GSM / UMTS Mini Card Hardware Integration Guide frames) to the module. These tokens keep the module  awake and cause unnecessary power consumption. LED output The module drives the LED output according to the PCI‐ Express Mini Card specification (summarized in Table 5‐2,  below). Table 5-2: LED states State Indicates Characteristics Module is not Light is off. powered. Module is powered Light is on. and connected, but not transmitting or receiving.

  • Page 65: Usim Interface

    Host / Module Interfaces Figure 5-1: Example LED VCC 3.3V Current limiting Resistor MiniCard USIM interface Note: This section applies only to GSM (MC87xx) modules. The module is designed to support one USIM (Universal  Subscriber Identity Module). The USIM holds account infor‐ mation, allowing users to use their account on multiple  devices. The USIM interface has four signals (plus Ground). These are  defined in Table 5‐3 with an example circuit shown in  Figure 5‐2. (For USIM card contacts, see Figure 5‐3.) Table 5-3: USIM pins Pin name USIM contact Function number XIM_VCC...

  • Page 66: Proprietary And Confidential

    CDMA and GSM / UMTS Mini Card Hardware Integration Guide Figure 5-2: USIM application interface 4.7uF XIM_VCC (Optional. Locate near the USIM socket) Located near 15 kΩ - 30 kΩ USIM socket (Optional. Locate near the (C1) XIM_VCC USIM socket) 47 pF, 51 Ω...

  • Page 67: Usim Operation

    Host / Module Interfaces USIM operation When designing the remote USIM interface, you must make  Note: For interface design sure that the USIM signal integrity is not compromised. Some  requirements, refer to: design recommendations include: (2G) 3GPP TS 51.010-1, section 27.17, or The total impedance of the VCC and GND connections to  • (3G) ETSI TS 102 230 V5.5.0, the USIM, measured at the module connector, should be  section 5.2 less than 1 Ω to minimize voltage drop (includes any trace  impedance and lumped element components — inductors,  filters, etc.). Note: The MC87xx is designed for use with either a 1.8 V or 3 V USIM.

  • Page 68: Extended At Commands

    CDMA and GSM / UMTS Mini Card Hardware Integration Guide necessary could decrease signal rise time, increase load  impedance, and cause USIM certification failure. Putting an optional decoupling capacitor at XIM_VCC near  • the USIM socket is recommended—the longer the trace  length (impedance) from the socket to the module, the  greater the capacitance requirement to meet compliance  tests. Putting an optional series capacitor and resistor termination  • (to ground) at XIM_CLK at the USIM socket to reduce EMI  and increase signal integrity is recommended if the trace  length between the USIM socket and module is long—47 pF  and 50 Ω resistor are recommended. • Protect the USIM socket to make sure that the USIM cannot  be removed while the module / host device is powered up.  For example, you could place the socket under the battery  (for portable devices); consider similar options for other  device types. • Test your first prototype host hardware with a Comprion   USIM test device at a suitable testing facility.  Extended AT commands Several proprietary AT commands are available for the  MC57xx and MC87xx to use in hardware integration design  and testing (these commands are NOT intended for use by end  users). Refer to CDMA Extended AT Command Reference  (Document 2130621) for the MC57xx, or MC87xx Modem ...
  • Page 69 Host / Module Interfaces Table 5-4: MC57xx Extended AT commands (Continued) Command Description Turns on / off the first receiver !RX2 Turns on / off the second receiver !RXAGC Reads Rx AGC !RX2AGC Reads second Rx AGC Enables Tx chain !TXAGC Sets Tx AGC !KEYON...
  • Page 70 CDMA and GSM / UMTS Mini Card Hardware Integration Guide Table 5-5: MC87xx Extended AT commands (Continued) Command Description Modem reset and status commands Returns the temperature of the PA (Power !DTEMP Amplifier) used by the: • UMTS transceiver, or •...
  • Page 71 Host / Module Interfaces Table 5-5: MC87xx Extended AT commands (Continued) Command Description !DASTXOFF Turns off the Tx PA (Power Amplifier) (password-protected) !DASTXON Turns on the Tx PA (Power Amplifier) (password-protected) !DAWGRXAGC Returns the Rx AGC (Automatic Gain Control) (password-protected) value (UMTS) !DAWSCONFIGRX Sets the UMTS receiver to factory calibration...
  • Page 72 CDMA and GSM / UMTS Mini Card Hardware Integration Guide Proprietary and Confidential 2130114 In the event of a discrepancy in values between this guide and the Product Specification Document (PSD), the PSD takes precedence.

  • Page 73: Thermal Considerations

    6: Thermal Considerations This chapter describes the thermal characteristics of the  module and provides suggestions for testing and addressing  thermal issues. Thermal considerations Mini Cards can generate significant amounts of heat that must  be dissipated in the host device for safety and performance  reasons. The amount of thermal dissipation required depends on the  following factors: Supply voltage — Maximum power dissipation for these  • modules can be up to 3.1 W at voltage supply limits. • Usage — Typical power dissipation values depend on the  location within the host, amount of data transferred, etc. Specific areas requiring heat dissipation include the four shield  cases indicated in Figure 6‐1. Transmitter—top shield (next to RF connectors). This is  • likely to be the hottest area. Baseband 1—bottom shield, below the transmitter • Receiver—top shield, other side of module from the trans‐ • mitter • Baseband 2—bottom shield, below the receiver You can enhance heat dissipation by: • Maximizing airflow over / around the module Locating the module away from other hot components • Note: Adequate dissipation of heat is necessary to ensure that the module functions properly, and to comply with the thermal require- ments in PCI Express Mini Card Electromechanical Specification Revision 1.1.
  • Page 74 CDMA and GSM / UMTS Mini Card Hardware Integration Guide Figure 6-1: Shield locations Note: Make sure that your system design provides sufficient cooling for the module. The RF shield temperature should be kept below ° C when integrated to prevent damage to the module’s compo-  ...

  • Page 75: Design Checklist

    7: Design Checklist This chapter provides a summary of the design considerations  mentioned throughout this guide. This includes items relating  to the power interface, RF integration, thermal considerations,  cabling issues, and so on. Note: This is NOT an exhaustive list of design considerations. It is expected that you will employ good design practices and engineering principles in your integration. Table 7-1: Hardware integration design considerations Suggestion Section where discussed Component placement USIM operation...
  • Page 76 CDMA and GSM / UMTS Mini Card Hardware Integration Guide Table 7-1: Hardware integration design considerations (Continued) Suggestion Section where discussed USIM operation Decouple the VCC line close to the USIM socket. The longer the trace length (impedance) from socket to module, the greater the page 67 capacitance requirement to meet compliance tests.

  • Page 77: Testing

    8: Testing Note: All Sierra Wireless embedded modules are factory-tested to ensure they conform to published product specifications. Developers of OEM devices integrating Sierra Wireless  modules should include a series of test phases in their  manufacturing process to make sure that their devices work  properly with the embedded modules.  Suggested phases include: Acceptance testing • —testing of modules when they are  received from Sierra Wireless Certification testing —testing of completed devices to obtain  • required certifications before beginning mass production Production testing —testing of completed devices with the  • modules embedded Quality assurance testing •...

  • Page 78: Test Procedure

    CDMA and GSM / UMTS Mini Card Hardware Integration Guide Test procedure The following is a suggested acceptance testing procedure  using Sierra Wireless’ Watcher software: Test 1: Check power-up and initialization Note: You can perform these tests using appropriate AT After installing the module, start the test system. commands. Launch Watcher. Check the LED—if the LED is off, there is a problem with  the module or with the connection to the LED. Test 2: Check version numbers Help > About From Watcher, select ...

  • Page 79: Production Testing

    ) in North America Production testing Each assembled device should be tested to make sure the  Note: Production testing module is installed correctly and is functioning within normal  typically continues for the life of operating parameters. the product. Note: All Sierra Wireless embedded modules are fully factory-tested to ensure they conform to published product specifications. In general, production testing ensures that the module is  installed correctly (I/O signals are passed between the host and  module), and the antenna is connected and performing to  specifications (RF tests). Typical items to test include host connectivity, the RF assembly  (Tx and/or Rx, as appropriate), and the audio assembly (for ...

  • Page 80: Suggested Manual Functional Test Procedure

    CDMA and GSM / UMTS Mini Card Hardware Integration Guide Suggested manual functional test procedure This section presents a procedure for performing a basic  manual functional test on a laboratory bench using the Mini  Card and a Mini Card Dev Kit. When you have become  familiar with the testing method, use it to develop your own  automated production testing procedures. Suggested tests Consider the following tests when you design your production  test procedures for devices with the MC57xx and/or MC87xx  installed. Visual check of the module’s connectors, RF assemblies, and  • audio assemblies (if applicable) Module is operational • • USB connection is functional • LED is functional  (module power down) • W_Disable# • Firmware revision check • Rx tests on main and auxiliary paths •...
  • Page 81 Testing Ensure that the module is turned off before beginning  Note: To power-off the module, W_Disable# your tests (set   low). drive W_Disable# low for the required minimum period. See If using Linux, determine if any USB devices are currently  State change: Power off / on connected to the computer: page 23 for details. ls /dev/ Open a shell window and enter the command  tty/USB* Record the ttyUSBn values that are returned; these are  the currently connected USB devices. If the command  returns “no such file or directory”, there are no devices  currently connected. W_Disable# Test ...
  • Page 82 CDMA and GSM / UMTS Mini Card Hardware Integration Guide MC5725  /   M C5725V  /   M C8775  /   M C8775V  /   M C8780  / ·   M C8781 (with no other USB devices connected): (The AT port is the third new enumerated device  —   / dev/ttyUSB2.) · MC5727  /   M C5727V  / MC5728V/  M C8785V  /   M C8790  /  ...
  • Page 83 Testing Type “Sierra” in the Name box and click OK. The  Connect To dialog box appears. Click OK without changing any of the displayed infor‐ mation. The Connect dialog box appears. Click Cancel. Type ATZ in the HyperTerminal window. If the  Note: If necessary, use AT E1 to connection is established, the message OK appears.  enable echo. (Linux systems) Use a terminal emulation  /   c ommunications program such  as minicom to connect over the device handle for AT com‐ mands (see listings in Step 5): Start minicom: Note: If the command “minicom” · First use of the modem:   F rom the command line, type  is not found, then use a different minicom ‐s. ‐‐ always shows configuration menu program, or download minicom ·...
  • Page 84 CDMA and GSM / UMTS Mini Card Hardware Integration Guide Put the module in diagnostic / factory test mode using: AT!DIAG · MC57xx:  AT!DAFTMACT · MC87xx:  +CPIN ( MC87xx only)  Communicate with the USIM using     CIMI or + Test RF transmission, if desired: Note: When performing RF · MC57xx—See Testing RF transmission path—MC57xx  tests, use a test platform similar on page 85. to those shown in Figure 8-2 ·...

  • Page 85: Testing Rf Transmission Path-Mc57Xx

    Testing When prompted, enter your user password to begin the  download and installation. When minicom is installed, the  shell prompt appears. Configure minicom to communicate with your modem: Start minicom with the following command: minicom -s Use the down‐arrow key to select the “Serial port setup”  option. Refer to Step 5 on page 81 to identify the device file handle  (/dev/ttyUSBn) to use for AT commands. Indicate the file handle to use for AT commands  —   e nter    and then replace the serial device string with the AT file  handle (for example, /dev/ttyUSB4 for an MC8792V as  shown in the example in Step 5 on page 81). Press Enter twice. Save setup as dfl Use the down‐arrow key to select  Exit Select  Testing RF transmission path—MC57xx Note: This procedure segment is performed in Step of the Suggested test plan procedure (page 84).

  • Page 86: Testing Rf Transmission Path-Mc87Xx

    CDMA and GSM / UMTS Mini Card Hardware Integration Guide Prepare the DUT using the following AT commands: Note: These AT commands generate a modulated test AT!OEM=176 (Unlocks the extended AT command  signal. set) AT!DIAG (Set modem in diagnostic mode) AT!CHAN=600,1 (PCS band, channel 600) AT!CHAN=384,0 (Cellular band, channel 384) The power meter should read ‐100 dBm, indicating no  signal. AT!TX=1 (Turns on transmitter) AT!ALLUP=1 (Enables all ups condition) The power meter should read from 0–24 dBm,  depending on your setup. AT!TX=0 (Turns off transmitter) Test limits: Run ten or more good DUTs through this test proce‐...
  • Page 87 Testing Table 8-1: Test settings for MC87xx transmission path testing Bands Mode Test category 1800 1900 2100 WCDMA Band Channel 4182 2812 9400 9750 Band Channel To test the DUT’s transmitter path: Set up the power meter: Note: This procedure describes steps using the "Power Meter: Gigatronics 8651A” (with Option 12 and Power Sensor 80701A).

  • Page 88: Testing Rf Receive Path-Mc57Xx

    CDMA and GSM / UMTS Mini Card Hardware Integration Guide (WCDMA mode only) AT!DASPDM=2, 455 (Set the power level, tunable  from 0 to 511) (WCDMA mode only) AT!DAWSPARANGE=3 (Set to high PA gain state) Take the measurement. AT!DASTXOFF (Turns off the transmitter) Test limits: Run ten or more good DUTs through this test proce‐ dure to obtain a nominal output power value. ± · Apply a tolerance of  5 to 6 dB to each measurement  (assuming a good setup design). · Monitor these limits during mass‐production ramp‐up  to determine if further adjustments are needed. · For GSM mode, the transmit signal is bursted, so the  transmit power will appear averaged on the power  meter reading. ± Note: The MC87xx has a nominal output power of +23 dBm 1 dB in WCDMA mode.
  • Page 89 Testing Set up the signal generator: Note: This procedure describes steps using the Agilent 8648C signal generator—the Rohde & Schwarz SML03 is shown for reference only. Press the Frequency button to set the frequency to  Note: This example setup uses 1960.200 MHz for PCS band, Channel 600, or  a 200 kHz offset from band 881.720 MHz for Cellular band, Channel 384 center for testing using a continuous wave—you can use Press the Amplitude button to set the amplitude to ...

  • Page 90: Testing Rf Receive Path-Mc87Xx

    CDMA and GSM / UMTS Mini Card Hardware Integration Guide AT!RX2AGC?  (Reads back the power level, in dBm,  from the diversity receiver) Response examples: · RX2AGC = 0xFFFFFF76 = ‐84 dBm (when signal  generator’s RF port is OFF) · RX2AGC = 0xFFFFFFC6 = ‐69 dBm (when signal  generator’s RF port is ON) typical AT!RX=0  (Turns off main receiver) AT!RX2=0  (Turns off diversity receiver) Test limits Run ten or more good DUTs through this test proce‐ dure to obtain a nominal received power value. ± · Apply a tolerance of  5 to 6 dB to each measurement  (assuming a good setup design). · Make sure the measurement is made at a high enough  level that it is not influenced by DUT‐generated and  ambient noise. · The Signal Generator power level should be at least  ‐50 dBm. · Monitor these limits during mass‐production ramp‐up ...
  • Page 91 Testing Table 8-2: Test settings for MC87xx Receive path testing Bands Mode Test category 1800 1900 2100 WCDMA Frequency (MHz) 882.60 948.60 1961.2 2141.2 Band Channel 4182 2812 9400 9750 Frequency (MHz) 881.667 948.067 1842.267 1960.067 Band Channel 1 All values offset from actual center channel by +1.2 MHz 2 All values offset from actual center channel by +67 kHz To test the DUT’s receive path: Set up the signal generator:...
  • Page 92 CDMA and GSM / UMTS Mini Card Hardware Integration Guide · See Table 8‐2 for <channel> values AT!DASLNAGAIN=0  (sets the LNA to maximum gain) (WCDMA mode) AT!DAWGAVGAGC=9400,0  (for PCS1900, channel  9400 as an example) (GSM mode) AT!DAGSRXBURST=0 (set to receive bursted mode) AT!DAGGAVGRSSI=190,0 (for channel 190, for  example) The returned value is the RSSI in dBm. Test limits: Run ten or more good DUTs through this test proce‐ dure to obtain a nominal received power value. ± · Apply a tolerance of  5 to 6 dB to each measurement  (assuming a good setup design). · Make sure the measurement is made at a high enough  level that it is not influenced by DUT‐generated and  ambient noise. · The Signal Generator power level can be adjusted and  new limits found if the radiated test needs greater  signal strength.

  • Page 93: Testing Gps Receiver-Mc8775V

    Testing AT!DAWGAVGAGC=9400,0,1 vii.  (the ‘1’ indicates the  diversity path is used) Test the limits as in Step 3. Testing GPS Receiver—MC8775V Note: The GPS receiver does not need to be tested for UMTS (MC878x) or CDMA (MC57xx) modules supporting diversity because RF connectivity is validated by testing the diversity receiver in Step of the Suggested test plan procedure (page 84).

  • Page 94: Test Audio Loop-Back-Mc5725V / Mc5727V / Mc5728V / Mc8775V / Mc8785V / Mc8790V / Mc8791V / Mc8792V

    CDMA and GSM / UMTS Mini Card Hardware Integration Guide Run ten or more good DUTs through this test proce‐ dure to obtain averaged C/N readings. · The GPS receiver responds to signal levels from  ‐130 dBm to ‐80 dBm. · Measure C/N five times for each DUT to obtain an  average reading at ‐110 dB. · Make sure the C/N is less than 15 dB when the signal  generator is off. ± · Allow for  5 dB of C/N variation to identify any  problems in the GPS receive path. Test Audio Loop-back—MC5725V / MC5727V / MC5728V / MC8775V / MC8785V / MC8790V / MC8791V / MC8792V Note: This procedure segment is performed in Step of the...
  • Page 95 Testing Connect the generator output signal to the MIC1_P  (positive) and MIC1_N (negative) header pins  located at CN18 on the Dev Kit. Connect the analyzer input signal to the SPK1_P  (positive) and SPK1_N (negative) header pins located  at CN18 on the Dev Kit (see Figure 8‐1). For  additional details concerning use of the Dev Kit, see  the PCI Express Mini Card Dev Kit Quick Start Guide  (Document 2130705). If using a custom host platform: Connect the generator output to the microphone  input (MIC, positive and negative) in the host. Connect the analyzer input to the Speaker output  (SPK, positive and negative) in the host. Figure 8-1: Mini Card Dev Kit showing MIC / SPK pins. Set up the DUT using the following commands: (MC5725V / MC5727V / MC5728V) AT!OEM=176 (Unlocks the extended AT command  set) AT!DIAG (Sets modem in Diagnostic mode) AT!AVAUDIOLPBK=1 (Enables audio loop‐back mode) AT!CODECGAIN=8000,8000,8000  (Sets codec gains in  the loopback path to +6 dB (Tx), +6 dB (Rx) and ‐6dB  (SideTone).) Σ ·...

  • Page 96: Quality Assurance Testing

    CDMA and GSM / UMTS Mini Card Hardware Integration Guide AT!AVCODECSTG=0,FFFF (Sets sidetone gain for  audio profile 0) Take measurements using the following commands (Note  that the module has a gain of 4 dB in audio loopback  mode.) Press the ACV button to measure the AC level. Note: Actual measured results · Expected range: 1–2.5 VAC will vary, depending on your testing setup. Press the FREQ button to measure the frequency. · Expected value: 1 kHz Press the Shift and THD buttons at the same time to  measure the total harmonic distortion. · Expected value: < 1% Reset the audio parameters: · (MC5725V /  MC5727V  / ...

  • Page 97: Suggested Testing Equipment

    Testing specified receiver sensitivity of ‐104 dBm. The objective  of this test is to determine if the FER measured is within  the acceptable limits for the specified receiver sensitivity  of the module. Unlike the FER tests performed during  production testing, this test determines the receiver  performance without the influence of the noise factor  (AWGN), but with extremely low cell power. The  reported FER and the confidence level must be <1% and  >95% respectively for the test to be considered a pass. MC87xx‐specific: • RF sensitivity testing: BER / BLER for different bands  · and modes · Transmitter and receiver tests (based on relevant sections  of the 3GPP TS51010 and 3GPP 34121 documents) Suggested testing equipment To perform production and post‐production tests, you require  appropriate testing equipment. Figure 8‐2 shows a suggested test station for use with devices  incorporating either the MC57xx or the MC87xx. In the test station as shown, a test computer coordinates  testing between the host device with an integrated module and  the measurement equipment. If the test computer does not  have direct access to the module, then the host device must  have custom software to forward instructions from the test  computer to the module. This suggested station setup includes: Audio analyzer—to evaluate Tx • • Power meter—to evaluate current consumption for Tx and  Rx in various modes • Signal generator—to evaluate Rx When using this setup, you can allow the signal generator to  run continuously throughout the production testing ...
  • Page 98 CDMA and GSM / UMTS Mini Card Hardware Integration Guide Figure 8-2: Recommended production test setup Proprietary and Confidential 2130114 In the event of a discrepancy in values between this guide and the Product Specification Document (PSD), the PSD takes precedence.
  • Page 99 Testing Figure 8-3: Recommended Dev Kit test setup Rev 1.9.1 Feb.09 Proprietary and Confidential In the event of a discrepancy in values between this guide and the Product Specification Document (PSD), the PSD takes precedence.
  • Page 100 CDMA and GSM / UMTS Mini Card Hardware Integration Guide Proprietary and Confidential 2130114 In the event of a discrepancy in values between this guide and the Product Specification Document (PSD), the PSD takes precedence.

  • Page 101: Antenna Specification

    Table A-1: Required antennas and maximum antenna gain by module type Antenna type (minimum) Maximum antenna gain Module Main Diversity / GPS Cellular band PCS band (dBi) (dBi) MC5725 4.15 MC5725V 4.15 MC5727 4.15 2-band (Cellular / PCS) 3-band (Cellular / PCS / GPS) MC5727V 4.15...

  • Page 102: Frequency Bands

    CDMA and GSM / UMTS Mini Card Hardware Integration Guide Table A-1: Required antennas and maximum antenna gain by module type Antenna type (minimum) Maximum antenna gain Module Main Diversity / GPS Cellular band PCS band (dBi) (dBi) MC8781 N.America: 2-band 3-band (Cellular / PCS / GPS) (Cellular / PCS) MC8785V...
  • Page 103 Antenna Specification Table A-3: Supported frequency bands (UMTS modules) Main antenna Diversity / GPS antenna Module 1800 1900 2100 1900 2100 MC8790 MC8790V MC8791V MC8792V a. GPS supported on separate GPS antenna b. GPS supported on diversity antenna Table A-4: Supported frequency bands (main / diversity / GPS antennas) Frequency band Frequency Supported network types...

  • Page 104: Antenna Design

    CDMA and GSM / UMTS Mini Card Hardware Integration Guide Antenna design Design of main path, diversity path, and GPS antennas is  determined by the host device OEM and their designated  antenna designer. Note: Modems that support diversity and GPS can use the same secondary (diversity) antenna for both. Note: Antennas should be designed BEFORE the industrial design is finished to make sure that the best antennas can be developed.

  • Page 105: Diversity Antenna Design Requirements (Mc57Xx / Mc8780 / Mc8781 / Mc8785V / Mc8790 / Mc8790V / Mc8791V / Mc8792V)

    Antenna Specification Diversity antenna design requirements (MC57xx / MC8780 / MC8781 / MC8785V / MC8790 / MC8790V / MC8791V / MC8792V) Antenna diversity is required for end user performance and  enhanced coverage on CDMA networks (800 MHz /  1900 MHz) for MC57xx, and on UMTS networks (850 MHz /  1900 MHz / 2100 MHz) for MC8780 / MC8781 / MC8785V /  MC8790 / MC8790V / MC8791V / MC8792V. (See Table A‐3 on  page 102 for UMTS diversity support by module.) In addition to passing the specific tests described in Testing  beginning on page 106, the diversity path antenna should  satisfy the following requirement: Receive performance, measured by forward link  • throughput, must be 0 to 3 dB better than a single antenna Performance goals When designing the antenna system, consider the following  performance goals: 0dB gain antenna (or better) • Diversity antenna receive performance to be similar to  •...

  • Page 106: Testing

    • tested and verified while the MiniCard antenna is  integrated in the host device.  Note: Additional testing, including active performance tests, mechanical, and accelerated life tests can be discussed with Sierra Wireless’ engineering services. Contact your Sierra Wireless repre- sentative for assistance. Voltage Standing Wave Ratio (VSWR) Measure VSWR for each antenna (main, diversity) using the  following criteria: Proprietary and Confidential 2130114 In the event of a discrepancy in values between this guide and the Product Specification Document (PSD), the PSD takes precedence.
  • Page 107 Antenna Specification Measure VSWR in free space at the antenna’s coaxial  • connector (feeding terminal) when the antenna is installed  in the host device with the cable routed to the Mini Card  slot. Use an HP8753E network analyzer (or equivalent). • Table A-5: VSWR (Voltage Standing Wave Ratio) Frequency Typical VSWR Worst-case Notes (MHz) VSWR at band edges Main antenna 824–849 2.5:1 850-band Tx 869–880 3.5:1 850-band Rx excluding part inside 900-band Tx 880–915 2.5:1 900-band Tx...

  • Page 108: Efficiency

    CDMA and GSM / UMTS Mini Card Hardware Integration Guide Efficiency Table A‐6 details the minimum total radiated efficiency for  main and, if supported, diversity antennas. Table A-6: Minimum total radiated efficiency Mode Main Diversity Transmit (Tx) Receive (Rx) a. Total efficiency is measured at the RF connec- tor. It includes mismatch losses, losses in the matching circuit, and antenna losses.

  • Page 109: Peak Gain And Radiation Patterns

    Peak gain and radiation patterns Table A‐8 describes the peak and average antenna gain limits  for the main path and diversity path antennas. Note: Sierra Wireless recommends using antenna efficiency as the primary parameter for evaluating the antenna system. Antenna Peak Gain is not a good indication of antenna performance when integrated with a host device; the antenna does NOT provide omni-directional gain patterns.
  • Page 110 CDMA and GSM / UMTS Mini Card Hardware Integration Guide Proprietary and Confidential 2130114 In the event of a discrepancy in values between this guide and the Product Specification Document (PSD), the PSD takes precedence.

  • Page 111: Regulatory Information

    B: Regulatory Information Important notice Because of the nature of wireless communications, trans‐ mission and reception of data can never be guaranteed. Data  may be delayed, corrupted (i.e., have errors) or be totally lost.  Although significant delays or losses of data are rare when  wireless devices such as the Sierra Wireless modem are used in  a normal manner with a well‐constructed network, the Sierra  Wireless modem should not be used in situations where failure  to transmit or receive data could result in damage of any kind  to the user or any other party, including but not limited to  personal injury, death, or loss of property. Sierra Wireless and  its affiliates accept no responsibility for damages of any kind  resulting from delays or errors in data transmitted or received  using the Sierra Wireless modem, or for failure of the Sierra  Wireless modem to transmit or receive such data. Safety and hazards Do not operate your MC57xx / MC87xx modem: • In areas where blasting is in progress Where explosive atmospheres may be present including  • refuelling points, fuel depots, and chemical plants Near medical equipment, life support equipment, or any  • equipment which may be susceptible to any form of radio  interference. In such areas, the MC57xx / MC87xx modem  MUST BE POWERED OFF. Otherwise, the MC57xx /  MC87xx modem can transmit signals that could interfere  with this equipment. In an aircraft, the MC57xx / MC87xx modem MUST BE  POWERED OFF. Otherwise, the MC57xx / MC87xx modem  can transmit signals that could interfere with various onboard  systems and may be dangerous to the operation of the aircraft  or disrupt the cellular network. Use of a cellular phone in an  aircraft is illegal in some jurisdictions. Failure to observe this ...

  • Page 112: Important Compliance Information For North American Users

    MC57xx / MC87xx modem in their final products without  additional FCC / IC (Industry Canada) certification if they  meet the following conditions. Otherwise, additional FCC / IC  approvals must be obtained. At least 20 cm separation distance between the antenna  and the user’s body must be maintained at all times. To comply with FCC / IC regulations limiting both  maximum RF output power and human exposure to RF  radiation, the maximum antenna gain including cable loss  in a mobile‐only exposure condition must not exceed the  levels detailed in Table A‐1, “Required antennas and  maximum antenna gain by module type,” on page 101. The MC57xx / MC87xx modem and its antenna must not  be co‐located or operating in conjunction with any other  transmitter or antenna within a host device. A label must be affixed to the outside of the end product  into which the MC57xx / MC87xx modem is incorporated,  with a statement similar to the following: · For MC5725 / MC5725V: This device contains FCC ID: N7N‐MC5725 This equipment contains equipment certified under  IC: 2417C‐MC5725 · For MC5727 / MC5727V: This device contains FCC ID: N7N‐MC5727 This equipment contains equipment certified under  IC: 2417C‐MC5727 For MC5728 / MC5728V: · This device contains FCC ID: N7N‐MC5728 This equipment contains equipment certified under  IC: 2417C‐MC5728 For MC8775 / MC8775V:  · This device contains FCC ID: N7NMC8775 This equipment contains equipment certified under  IC: 2417C‐MC8775 For MC8780: ...

  • Page 113: Eu Regulatory Conformity

    Regulatory Information For MC8785V:  · This device contains FCC ID: N7NMC8785 This equipment contains equipment certified under  IC: 2417C‐MC8785 For MC8790 / MC8790V:  · This device contains FCC ID: N7NMC8790 This equipment contains equipment certified under  IC: 2417C‐MC8790 · For MC8792V:  This device contains FCC ID: N7NMC8792 This equipment contains equipment certified under  IC: 2417C‐MC8792 A user manual with the end product must clearly indicate  the operating requirements and conditions that must be  observed to ensure compliance with current FCC / IC RF  exposure guidelines. The end product with an embedded MC57xx / MC87xx  modem may also need to pass the FCC Part 15 unintentional  emission testing requirements and be properly authorized per  FCC Part 15. Note: If this module is intended for use in a portable device,  you are responsible for separate approval to satisfy the SAR  requirements of FCC Part 2.1093 and IC RSS‐102. EU regulatory conformity Sierra Wireless hereby declares that the MC8775, MC8775V,  MC8780, MC8781, MC8785V, MC8790, MC8790V, MC8791V,  and MC8792V modems conform with all essential require‐ ments of Directive 1999/5/EC. The Declaration of Conformity made under Directive 1999/5/ EC is available for viewing at the following location in the EU  community: Sierra Wireless (UK), Limited Lakeside House 1 Furzeground Way, Stockley Park East Uxbridge, Middlesex UB11 1BD...
  • Page 114 CDMA and GSM / UMTS Mini Card Hardware Integration Guide Proprietary and Confidential 2130114 In the event of a discrepancy in values between this guide and the Product Specification Document (PSD), the PSD takes precedence.

  • Page 115: Acronyms And Definitions

    C: Acronyms and Definitions Table C-9: Acronyms and definitions Acronym or term Definition Automatic Gain Control Bit Error Rate - a measure of receive sensitivity BLER Block Error Rate Call Box Base Station Simulator - Agilent E8285A or 8960, Rohde & Schwarz CMU200 CDMA Code Division Multiple Access...
  • Page 116 MC5727 / MC5727V / MC5728 / MC5728V MC57xx Any of the following CDMA Mini Cards: MC5725 / MC5725V / MC5727 / MC5727V / MC5728 / MC5728V MC8775 / MC8775V / Sierra Wireless Mini Cards used on GSM / UMTS networks...
  • Page 117 Acronyms and Definitions Table C-9: Acronyms and definitions Acronym or term Definition Universal Serial Bus USIM Universal Subscriber Identity Module VCC3.3 3.3 V supply voltage WCDMA Wideband Code Division Multiple Access — In this document, the term “UMTS” is used instead of “WCDMA”. In this document, XIM is used as part of the contact identifiers for the USIM interface (XIM_VCC, XIM_CLK, etc.).
  • Page 118 CDMA and GSM / UMTS Mini Card Hardware Integration Guide Proprietary and Confidential 2130114 In the event of a discrepancy in values between this guide and the Product Specification Document (PSD), the PSD takes precedence.

  • Page 119: Index

    Index Numerics interface 51–59 path mixing, host‐controlled 59 path switching, host‐controlled 58 PCM digital, signal interface 58 CDMA Standard 13 primary, signal interface 57 signal interface 57 system block diagram, MC5725V 52 system block diagram, MC5727V 52 acceptance tests 77 system block diagram, MC8775V 54 acronyms and definitions 115–117 audio modes, supported 55 airplane mode 19 audio pass band 51 anechoic chamber, OTA testing 43 audio passband, Rx and Tx 57 antenna automatic gain control (AGC) connection and mounting points 39 module‐controlled 58 connection considerations 39 custom, considerations 40 design requirements, diversity antenna 105 design requirements, general 104 BER (Bit Error Rate) 45 design requirements, GPS 105 bit error rate (BER) design requirements, main antenna 104 measure of sensitivity, MC87xx 45 diversity antenna, disabling 41 diversity, MC57xx 105 frequency bands, supported 102 GPS, MC8775V / MC8780 / MC8781 105 limit, matching coaxial connections 39 cable loss location, considerations 40 antenna, maximum 39 matching, considerations 40 capacitance maximum cable loss 39...

  • Page 120: Proprietary And Confidential

    CDMA and GSM / UMTS Mini Card Hardware Integration Guide EDGE mating (52‐pin) 12 host‐module 12 RF, Hirose 12 fading correlation coefficient USIM 12 test criteria 109 current consumption 27–35 regulations, relevant section 13 usage models 35 FER (Frame Error Rate) 45 peak inrush current, calculation 25 filtering specifications, MC57xx 28 high pass / slope filtering, module‐controlled 58 specifications, MC8775/75V 28–30 filtering stages, audio 51 specifications, MC8780/81 30–31 filtering, RF desense 43 specifications, MC8785V 31–32, 32–33 FIR filtering current, consumption 27 audio feature 51 codec 52 module‐controlled 58 frame error rate (FER) measure of sensitivity, MC57xx 45 DCS 1800 frequency bands, supported 102 RF parameters, MC87xx 37 sensitivity, test results 48 desense. See RF design checklist...
  • Page 121 AT reference (extended) 13 MC87xx AT reference (standard) 13 sensitivity test results 47–50 CnS reference 13 sensitivity, defined 45 RF parameters (MC57xx) 37 Mini Card MC5727V Dev Kit Quick Start Guide 15 AT commands, extended 68 PCI Express Specification 15 audio interface, supported 51 See  also  MC5725,  MC5725V,  MC5727,  MC5727V,  RF parameters (MC57xx) 37 MC8775,  MC8775V,  MC8780,  MC8781,  MC57xx MC8785V current specifications 28 minicom sensitivity test results 46 downloading and installing 84 sensitivity, defined 45 mixing Rev 1.9.1 Feb.09 Proprietary and Confidential In the event of a discrepancy in values between this guide and the Product Specification Document (PSD), the PSD takes precedence.
  • Page 122 CDMA and GSM / UMTS Mini Card Hardware Integration Guide codec 52 off, state change, temperature 23 modes off, state change, voltage 21 deep sleep, description 34 power‐up timing 26 operating 34 ramp‐up timing 26 shutdown, description 34 required supply voltage 17 sleep, description 34 signals, overview 17 transmit / receive, description 34 state machine, temperature monitoring 22–24 module state machine, voltage monitoring 20–22 power states 18–24 state, disconnected 19 state, low power 19–20 state, normal 19 state, off 19 states, module 18–24 networks supply, RF interference 41 supported, by module type 11 supply, ripple limit 41 noise transmit, wave form 26 leakage, minimizing 39 power interface 17–35 RF interference, power supply 41 product specification (PSD) 14 noise suppression...
  • Page 123 Index EGSM 900 37 suspend GPS 38 mode, USB 63 GSM 850 37 system block PCS 1900 37 MC5725V, audio 52 UMTS 1900 38 MC5727V, audio 52 UMTS 2100 38 MC8775V, audio 54 UMTS 850 38 ringer tone codec 52 ringers temperature monitoring state machine module‐controlled 58 trigger levels 22 ringtone, polyphonic temperature, module. See thermal host‐controlled 58 test Rx band efficiency 108 RF parameters, MC57xx 37 fading correlation coefficient 109 Rx sensitivity gain, antenna 109 conducted, RF parameter, MC87xx 37 isolation 108 RF parameter, MC57xx 37 VSWR (Voltage Standing Wave Ratio) 106 testing overview 77 acceptance tests 77 SCI (Slot Cycle Index) 28 audio loop‐back, MC5725V / MC5727V / MC8775V see Smart Error Detection certification tests 78 sensitivity equipment, suggested 97...
  • Page 124 CDMA and GSM / UMTS Mini Card Hardware Integration Guide interface diagram 66 interface, overview 65 operation 67–68 UDK (Universal Development Kit) pin assignments 65 components, included 11 socket placement 68 UMTS 1900 RF parameters, MC87xx 38 sensitivity, test results 50 UMTS 2100 RF parameters, MC87xx 38 voice memo sensitivity, test results 50 host‐controlled 58 UMTS 850 voltage monitoring state machine RF parameters, MC87xx 38 trigger levels 20 sensitivity, test results 49 Voltage Standing Wave Ratio (VSWR) Universal Development Kit (UDK) test criteria 106 components, included 11 volume, setting Universal Serial Bus. See USB. responsible codec 59 usage models VSWR (Voltage Standing Wave Ratio) current consumption 35 test criteria 106 enumeration, power‐up 26 handshaking 62...

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