Sierra Wireless AirPrime AR7594 Hardware Integration Manual
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Sierra Wireless AirPrime AR7594 Hardware Integration Manual

Sierra Wireless AirPrime AR7594 Hardware Integration Manual

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Hardware Integration Guide
AirPrime AR7594
XXXXXXXX
0.2
November 03, 2017

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Summary of Contents for Sierra Wireless AirPrime AR7594

  • Page 1 Hardware Integration Guide AirPrime AR7594 XXXXXXXX November 03, 2017...
  • Page 2 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.
  • Page 3 This product may contain technology developed by or for Sierra Wireless Inc. ® This product includes technology licensed from QUALCOMM This product is manufactured or sold by Sierra Wireless Inc. or its affiliates under one or more patents licensed from InterDigital Group and MMP Portfolio Licensing. Copyright ©...
  • Page 4 Hardware Integration Guide Document History Version Date Updates October 26, 2017 Creation November 03, 2017 Add comments for end device antenna trace design. XXXXXXXX Rev 0.12 January 16, 2017...

  • Page 5: Table Of Contents

    Contents 1. INTRODUCTION ....................9 1.1. General Features ......................9 1.2. Power ..........................9 1.3. RF ............................ 10 1.3.1. GSM RF Interface ....................10 1.3.1.1. GSM TX Output Power....................10 1.3.1.2. GSM RX Sensitivity ....................... 10 1.3.2. WCDMA RF Interface ....................11 1.3.2.1.
  • Page 6 Hardware Integration Guide 7. ABBREVIATIONS ....................30 XXXXXXXX Rev 0.12 January 16, 2017...
  • Page 7 List of Figures Figure 1. AppCAD Screenshot for Microstrip Design Power Mode Diagram ......... 22 Figure 2. RF Routing Examples ..................... 23 Figure 3. Coplanar Clearance Example ..................23 Figure 4. Antenna Microstrip Routing Example ................24 Figure 5. AirPrime AR759x Series Interface Reference Circuit............25 41110461 Rev 0.1 January 16, 2017...
  • Page 8 List of Tables Table 1. AirPrime AR759x Series Embedded Modules ..............9 Table 2. AirPrime AR759x Series Supported Carrier Aggregation Combinations ......9 Table 3. Power Supply Requirements ..................... 9 Table 4. Power Supply Pads ......................10 Conducted TX (Transmit) Max output Power Tolerances – GSM/EDGE Bands .... 10 Table 5.

  • Page 9: Introduction

    3A+20A, 3A+28A, 7A+20A, 7A+28A, 7A+32A, 20A+32A Refer to 3GPP Optional Band 1.2. Power The AirPrime AR7594 are powered via a single regulated DC power supply, 3.7V nominal. Table 3. Power Supply Requirements Power Supply Units Main DC Power Input Range (VBATT)

  • Page 10: Gsm Rf Interface

    Input Power Supply Input Must Be Used 1.3. This section presents the WWAN RF interface of the AirPrime AR7594. The specifications for the LTE, GSM and WCDMA interfaces are defined. 1.3.1. GSM RF Interface This section presents the GSM RF Specification for the AirPrime AR7594.

  • Page 11: Wcdma Rf Interface

    Hardware Integration Guide Introduction Conducted RX (Receive) Sensitivity – GSM/EDGE Bands Table 6. Class A Room Class A Limit (dBm) (Extreme) GSM/EDGE Bands Typical Limit Typical (dBm) (dBm) (dBm) -109.5 2% BER CS -102 -109 -103 EGSM 900 10% BLER GMSK CS1 -104 -108...

  • Page 12: Lte Rf Interface

    Hardware Integration Guide Introduction Conducted Primary RX (Receive) Sensitivity – UMTS Bands Table 8. Class A Room Class A Band Limit (dBm) (Extreme) Typical Typical (dBm) Limit (dBm) (dBm) -110 -106.7 -109 -107.5 -110.5 -104.7 -110 -105.5 -111 -103.7 -110 -104.5 -111 -106.7...

  • Page 13: Lte Rx Sensitivity

    Hardware Integration Guide Introduction Conducted TX (Transmit) Max output Power Tolerances – LTE Bands Table 11. Standard (dBm) Band Class A (dBm) (Note 3) Notes (Note 2) 23 ± 2.7dB 23 ± 2.2dB Note 1 23 ± 2.7dB 23 ± 2.2dB Note 1,4 23 ±...

  • Page 14: Wwan Antenna Interface

    Hardware Integration Guide Introduction x_MHz_Sensitivity = 10 MHz_Sensitivity – 10*log(10 MHz/x_MHz) 10 MHz BW,and 50 RB DownLink and Up Link as 3GPP TS 36.521-1 Table 7.3.5-2. All values are preliminary pending transceiver matching and testing. Conducted RX Sensitivity SISO (BW: 10MHz) – LTE Bands Table 13.
  • Page 15  Measured at the RF connector.  Includes mismatch losses, losses in the matching circuit, and antenna losses, excluding cable loss.  Sierra Wireless recommends using antenna efficiency as the primary parameter for evaluating the antenna Total radiated system. efficiency of Ant1 or >...

  • Page 16: Gnss

    Hardware Integration Guide Introduction b Stated band ranges satisfy requirements for both Ant1 and Ant2. 1.4. GNSS The AirPrime AR759x Series include optional Global Navigation Satellite System (GNSS) capabilities via the Qualcomm gpsOne Gen8C Engine, capable of operation in assisted and stand-alone modes using GPS, GLONASS, Beidou, Galileo, and QZSS SVs.

  • Page 17: Gnss Antenna Interface

    Hardware Integration Guide Introduction Note 3: Scenarios used for accuracy measurements simulate car travel including direction, altitude and speed variations. Note 4: Best performances are obtained by using external Pre-SAW and LNA for conducted test setup, it is used to simulate the active antenna as customer’s application. Note 5: 1Hz Navigation used for all tracking/navigation tests.

  • Page 18: Digital Io Characteristics

    Hardware Integration Guide Introduction Parameter Units ESD Ratings Primary, Secondary and GNSS antenna pads – ± 8 Contact All other signal pads – Contact ± 1.5 1 The ESD Simulator configured with 150pF, 330Ω. Caution: The AirPrime AR759x Series are sensitive to Electrostatic Discharge. ESD countermeasures and handling methods must be used when handling the AirPrime AR759x Series.

  • Page 19: Table 21. Digital Io Characteristics For Sdio Vcc=1.8V Nominal

    Hardware Integration Guide Introduction Caution: Digital IOs shall not be pulled-up to an external voltage as this may cause VCC_1V8 to not go low when the AirPrime AR759x Series are powered down. Also, this would partially bias the AirPrime AR759x Series which could potentially damage the device or result in GPIOs being set to undetermined levels.

  • Page 20: Table 23. Digital Io Characteristics For Uicc_Vcc=1.8V Nominal

    Hardware Integration Guide Introduction The UICC characteristics are defined in the table below. Table 23. Digital IO Characteristics for UICC_VCC=1.8V Nominal Parameter Comments Units High level input UICC_VCC + – CMOS/Schmitt 0.7* UICC_VCC voltage Low level input 0.2* – CMOS/Schmitt -0.3 voltage UICC_VCC...

  • Page 21: Audio Specification

    2. Audio Specification 2.1. Digital Audio The AirPrime AR759x Series provides two 4-wire digital audio interfaces. Each interface can be configured as either a PCM or an I2S interface. Table 25. Digital Audio Interface Pads Mode Name Direction Function If Unused PCM_CLK PCM Clock Output...

  • Page 22: Routing Constraints And Recommendations

    (W), trace thickness (T), and height (H) between the trace and the reference ground plane. In order to respect this constraint, Sierra Wireless recommends that a MicroStrip structure be used and trace width be computed with a simulation tool (such as AppCAD, shown in the figure below and available free of charge at http://www.avagotech.com).

  • Page 23: Figure 2. Rf Routing Examples

    Hardware Integration Guide Routing Constraints and Recommendations Poor routing Correct routing The yellow traces cross the RF trace. There is no signal around the RF path. Figure 2. RF Routing Examples  Fill the area around the RF traces with ground and ground vias to connect inner ground layers for isolation.

  • Page 24: Usb Routing Recommendations

    Hardware Integration Guide Routing Constraints and Recommendations RF Connector 50 Ohm Controlled Impedance Trace AR759x 2x Ground holdback – twice the trace width Figure 4. Antenna Microstrip Routing Example 3.2. USB Routing Recommendations HighSpeed USB signals (USB_D_P / USB_D_M) are a differential pair and must be routed with the following considerations/constraints: ...

  • Page 25: Antenna Recommendations

    Hardware Integration Guide Routing Constraints and Recommendations 3.4. Antenna Recommendations Connecting the antenna ground reference to the vehicle chassis is not recommended since that has been known to cause noise from the engine to couple into the audio of the device. It is ultimately up to the integrator to evaluate this performance.

  • Page 26: Firmware And Tools

    4. Firmware and Tools The AirPrime AR7594 are designed based on Qualcomm’s MDM9240 chipset, which contains a Modem Processor for running modem firmware components and an Application Processor for running embedded Linux applications. Various tools are provided by Qualcomm and developed by Sierra Wireless for developing and commercializing the AirPrime AR7592.

  • Page 27: Approval

    Sierra Wireless and its affiliates accept no responsibility for damages of any kind resulting from delays or errors in data transmitted or received using Sierra Wireless modem, or for failure of the Sierra Wireless modem to transmit or receive such data.

  • Page 28: Ic Regulations

    2400-2500 *. Valid collocated Transmitter combinations: WLAN+BT; WiMAX+BT. (WLAN+WiMAX+BT is not permitted.) 5. A label must be affixed to the outside of the end product into which the AirPrime AR7594 device is incorporated, with a statement similar to the following: This device contains FCC ID: N7NAR7594 6.
  • Page 29 Universal Serial Bus Class Definitions for V1.1 USB Implementers Forum Communication Devices AirPrime - AR7 Series - Customer Process Guidelines Sierra Wireless AirPrime - AR75xx - AT Command Interface V1.5 Sierra Wireless Specification - 4112841 AirPrime AR7xxx Firmware Download Guide...

  • Page 30: Table 27. Abbreviations

    7. Abbreviations The table below lists several abbreviations used in this document. Table 27. Abbreviations Abbreviation Description Analog-to-Digital Converter CDMA Code Division Multiple Access Discontinuous Receive EDGE Enhanced Data rates for GSM Evolution Frequency Division Duplex GERAN GSM EDGE Radio Access Network GNSS Global Navigation Satellite System Global System for Mobile Communications...

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