Page 2 - Confidential / Released; Copyright © Siemens AG 2007; XT65/XT75 Hardware Interface Description; Status; Confidential / Released
XT65/XT75 Hardware Interface Description XT65_XT75_HD_v01.001 Page 2 of 133 2007-1-8 Confidential / Released s General Notes Product is deemed accepted by recipient and is provided without interface to recipient’s products. The documen-tation and/or product are provided for testing, evaluation, inte...
Page 3 - Contents; Measuring the Supply Voltage V
XT65/XT75 Hardware Interface Description Contents s XT65_XT75_HD_v01.001 Page 3 of 133 2007-1-8 Confidential / Released Contents 0 Document History .................................................................................................................................... 9 1 Introduction .....
Page 6 - List of Tables; Tables
XT65/XT75 Hardware Interface Description List of Tables s XT65_XT75_HD_v01.001 Page 6 of 133 2007-1-8 Confidential / Released Tables Table 1: Directives .................................................................................................................................... 15 Table 2: St...
Page 7 - List of Figures; Figures
XT65/XT75 Hardware Interface Description List of Figures s XT65_XT75_HD_v01.001 Page 7 of 133 2007-1-8 Confidential / Released Figures Figure 1: XT65/XT75 system overview ...................................................................................................... 23 Figure 2: XT65/XT75 blo...
Page 9 - Document History; Mounting Advice Sheet
XT65/XT75 Hardware Interface Description 0 Document History s XT65_XT75_HD_v01.001 Page 9 of 133 2007-1-8 Confidential / Released 0 Document History Preceding document: "XT65/XT75 Hardware Interface Description" Version 00.144 New document: "XT65/XT75 Hardware Interface Description" ...
Page 10 - Document History
XT65/XT75 Hardware Interface Description 0 Document History s XT65_XT75_HD_v01.001 Page 10 of 133 2007-1-8 Confidential / Released New document: "XT65/XT75 Hardware Interface Description" Version 00.071 5 Added remark on given DC electric strength for GSM antenna interface. 7.1 Added remark ...
Page 11 - Introduction; Related Documents; Documents supplied with XT65, XT75
XT65/XT75 Hardware Interface Description 1 Introduction s XT65_XT75_HD_v01.001 Page 11 of 133 2007-1-8 Confidential / Released 1 Introduction This document applies to the following Siemens products: • XT65 Module • XT75 Module The document describes the hardware of the XT65 and XT75 modules, both de...
Page 12 - Terms and Abbreviations; Abbreviation
XT65/XT75 Hardware Interface Description 1.2 Terms and Abbreviations s XT65_XT75_HD_v01.001 Page 12 of 133 2007-1-8 Confidential / Released 1.2 Terms and Abbreviations Abbreviation Description ADC Analog-to-Digital Converter AGC Automatic Gain Control ANSI American National Standards Institute ARFCN...
Page 15 - Regulatory and Type Approval Information
XT65/XT75 Hardware Interface Description 1.3 Regulatory and Type Approval Information s XT65_XT75_HD_v01.001 Page 15 of 133 2007-1-8 Confidential / Released 1.3 Regulatory and Type Approval Information 1.3.1 Directives and Standards XT65/XT75 is designed to comply with the directives and standards l...
Page 16 - SAR requirements specific to portable mobiles; Products intended for sale on US markets; Environmental testing
XT65/XT75 Hardware Interface Description 1.3 Regulatory and Type Approval Information s XT65_XT75_HD_v01.001 Page 16 of 133 2007-1-8 Confidential / Released 1.3.2 SAR requirements specific to portable mobiles Mobile phones, PDAs or other portable transmitters and receivers incorporating a GSM module...
Page 17 - SELV Requirements
XT65/XT75 Hardware Interface Description 1.3 Regulatory and Type Approval Information s XT65_XT75_HD_v01.001 Page 17 of 133 2007-1-8 Confidential / Released 1.3.3 SELV Requirements The power supply connected to the XT65/XT75 module shall be in compliance with the SELV requirementsdefined in EN 60950...
Page 19 - Product Concept; Key Features at a Glance; Feature
XT65/XT75 Hardware Interface Description 2 Product Concept s XT65_XT75_HD_v01.001 Page 19 of 133 2007-1-8 Confidential / Released 2 Product Concept 2.1 Key Features at a Glance Feature Implementation General Frequency bands Quad band: GSM 850/900/1800/1900MHz GSM class Small MS Output power (accordi...
Page 20 - Key Features at a Glance
XT65/XT75 Hardware Interface Description 2.1 Key Features at a Glance s XT65_XT75_HD_v01.001 Page 20 of 133 2007-1-8 Confidential / Released SMS Point-to-point MT and MO Cell broadcast Text and PDU mode Storage: SIM card plus 25 SMS locations in mobile equipment Transmission of SMS alternatively ove...
Page 24 - Circuit Concept; Figure 2
XT65/XT75 Hardware Interface Description 2.3 Circuit Concept s XT65_XT75_HD_v01.001 Page 24 of 133 2007-1-8 Confidential / Released 2.3 Circuit Concept Figure 2 shows a block diagram of the XT65/XT75 module and illustrates the major functional components: Baseband block: • Digital baseband processor...
Page 26 - GSM Application Interface
XT65/XT75 Hardware Interface Description 3 GSM Application Interface s XT65_XT75_HD_v01.001 Page 26 of 133 2007-1-8 Confidential / Released 3 GSM Application Interface XT65/XT75 is equipped with an 80-pin board-to-board connector that connects to the external application. Thehost interface incorpora...
Page 27 - Operating Modes; Chapter 4
XT65/XT75 Hardware Interface Description 3.1 Operating Modes s XT65_XT75_HD_v01.001 Page 27 of 133 2007-1-8 Confidential / Released 3.1 Operating Modes The table below briefly summarizes the various operating modes referred to in the following chapters. See Table 11 for the various options proceedin...
Page 28 - Power Supply; Stabilizes; Minimizing Power Losses; in the BATT+ line and 30m
XT65/XT75 Hardware Interface Description 3.2 Power Supply s XT65_XT75_HD_v01.001 Page 28 of 133 2007-1-8 Confidential / Released 3.2 Power Supply XT65/XT75 needs to be connected to a power supply at the B2B connector (5 pins each BATT+ and GND). The power supply of XT65/XT75 has to be a single volta...
Page 29 - The reference points for measuring the supply voltage V; Monitoring Power Supply by AT Command; Reference
XT65/XT75 Hardware Interface Description 3.2 Power Supply s XT65_XT75_HD_v01.001 Page 29 of 133 2007-1-8 Confidential / Released 3.2.2 Measuring the Supply Voltage V BATT+ The reference points for measuring the supply voltage V BATT+ on the module are BATT+ and GND, both acces- sible at a capacitor ...
Page 30 - Turn on XT65/XT75 Using Ignition Line IGT; The supply voltage applied at BATT+ must be in the operating range.
XT65/XT75 Hardware Interface Description 3.3 Power-Up / Power-Down Scenarios s XT65_XT75_HD_v01.001 Page 30 of 133 2007-1-8 Confidential / Released 3.3 Power-Up / Power-Down Scenarios In general, be sure not to turn on XT65/XT75 while it is beyond the safety limits of voltage and temperature statedi...
Page 33 - Configuring the IGT Line for Use as ON/OFF Switch; Turn on XT65/XT75 Using the VCHARGE Signal
XT65/XT75 Hardware Interface Description 3.3 Power-Up / Power-Down Scenarios s XT65_XT75_HD_v01.001 Page 33 of 133 2007-1-8 Confidential / Released 3.3.1.2 Configuring the IGT Line for Use as ON/OFF Switch The IGT line can be configured for use in two different switching modes: You can set the IGT l...
Page 34 - Reset or Turn off XT65/XT75 in Case of Emergency; Figure 5
XT65/XT75 Hardware Interface Description 3.3 Power-Up / Power-Down Scenarios s XT65_XT75_HD_v01.001 Page 34 of 133 2007-1-8 Confidential / Released 3.3.1.4 Reset XT65/XT75 via AT+CFUN Command To reset and restart the XT65/XT75 module use the command AT+CFUN. You can enter AT+CFUN=,1 orAT+CFUN=x,1, w...
Page 35 - Signal States after Startup; Table 6; Signal name
XT65/XT75 Hardware Interface Description 3.3 Power-Up / Power-Down Scenarios s XT65_XT75_HD_v01.001 Page 35 of 133 2007-1-8 Confidential / Released 3.3.2 Signal States after Startup Table 6 describes the various states each interface pin passes through after startup and during operation. As shown in...
Page 36 - Turn off XT65/XT75 Using AT Command; Figure 8
XT65/XT75 Hardware Interface Description 3.3 Power-Up / Power-Down Scenarios s XT65_XT75_HD_v01.001 Page 36 of 133 2007-1-8 Confidential / Released Abbreviations used in the table: 3.3.3 Turn off XT65/XT75 XT65/XT75 can be turned off as follows: • Normal shutdown: Software controlled by AT^SMSO comm...
Page 37 - Leakage Current in Power-Down Mode
XT65/XT75 Hardware Interface Description 3.3 Power-Up / Power-Down Scenarios s XT65_XT75_HD_v01.001 Page 37 of 133 2007-1-8 Confidential / Released While XT65/XT75 is in Power-down mode the application interface is switched off and must not be fed from anyother source. Therefore, your application mu...
Page 38 - Turn on/off XT65/XT75 Applications with Integrated USB
XT65/XT75 Hardware Interface Description 3.3 Power-Up / Power-Down Scenarios s XT65_XT75_HD_v01.001 Page 38 of 133 2007-1-8 Confidential / Released 3.3.3.3 Turn on/off XT65/XT75 Applications with Integrated USB In a Windows environment, the USB COM port emulation causes the USB port of XT65/XT75 to ...
Page 39 - Table 7; Temperature Control during Emergency call
XT65/XT75 Hardware Interface Description 3.3 Power-Up / Power-Down Scenarios s XT65_XT75_HD_v01.001 Page 39 of 133 2007-1-8 Confidential / Released The maximum temperature ratings are stated in Section 7.2 . Refer to Table 7 for the associated URCs. 3.3.4.2 Temperature Control during Emergency call ...
Page 40 - Undervoltage Shutdown if no Battery NTC is Present; Whenever the supply voltage falls below the value of 3.2V the URC; Overvoltage Shutdown; specified in
XT65/XT75 Hardware Interface Description 3.3 Power-Up / Power-Down Scenarios s XT65_XT75_HD_v01.001 Page 40 of 133 2007-1-8 Confidential / Released 3.3.4.4 Undervoltage Shutdown if no Battery NTC is Present The undervoltage protection is also effective in applications, where no NTC connects to the B...
Page 41 - Automatic EGPRS/GPRS Multislot Class Change; for greater; Hardware Requirements; See
XT65/XT75 Hardware Interface Description 3.4 Automatic EGPRS/GPRS Multislot Class Change s XT65_XT75_HD_v01.001 Page 41 of 133 2007-1-8 Confidential / Released 3.4 Automatic EGPRS/GPRS Multislot Class Change Temperature control is also effective for operation in EGPRS Multislot Class 10 (XT75 only),...
Page 42 - Battery Pack Requirements; Table 8
XT65/XT75 Hardware Interface Description 3.5 Charging Control s XT65_XT75_HD_v01.001 Page 42 of 133 2007-1-8 Confidential / Released 3.5.3 Battery Pack Requirements The charging algorithm has been optimized for rechargeable Lithium batteries that meet the characteristics listedbelow and in Table 8 ....
Page 43 - Batteries Tested for Use with XT65/XT75
XT65/XT75 Hardware Interface Description 3.5 Charging Control s XT65_XT75_HD_v01.001 Page 43 of 133 2007-1-8 Confidential / Released 3.5.4 Batteries Tested for Use with XT65/XT75 When you choose a battery for your XT65/XT75 application you can take advantage of one of the following twobatteries offe...
Page 44 - Charger Requirements
XT65/XT75 Hardware Interface Description 3.5 Charging Control s XT65_XT75_HD_v01.001 Page 44 of 133 2007-1-8 Confidential / Released 3.5.5 Charger Requirements For using the implemented charging algorithm and the reference charging circuit recommended in [5] and in Fig- ure 54 , the charger has to m...
Page 45 - Operating Modes during Charging; Charge mode; AT command
XT65/XT75 Hardware Interface Description 3.5 Charging Control s XT65_XT75_HD_v01.001 Page 45 of 133 2007-1-8 Confidential / Released 3.5.7 Operating Modes during Charging Of course, the battery can be charged regardless of the engine's operating mode. When the GSM module is inNormal mode (SLEEP, IDL...
Page 46 - How to activate mode
XT65/XT75 Hardware Interface Description 3.5 Charging Control s XT65_XT75_HD_v01.001 Page 46 of 133 2007-1-8 Confidential / Released Table 10: Comparison Charge-only and Charge mode How to activate mode Description of mode Charge mode Connect charger to charger input of host application charging cir...
Page 47 - Power Saving; SLEEP mode falls in two categories:
XT65/XT75 Hardware Interface Description 3.6 Power Saving s XT65_XT75_HD_v01.001 Page 47 of 133 2007-1-8 Confidential / Released 3.6 Power Saving Intended for power saving, SLEEP mode reduces the functionality of the XT65/XT75 to a minimum and thus min-imizes the current consumption. Settings can be...
Page 48 - Network Dependency of SLEEP Modes; Timing of the CTS0 Signal in CYCLIC SLEEP Mode 7
XT65/XT75 Hardware Interface Description 3.6 Power Saving s XT65_XT75_HD_v01.001 Page 48 of 133 2007-1-8 Confidential / Released 3.6.1 Network Dependency of SLEEP Modes The power saving possibilities of SLEEP modes depend on the network the module is registered in. The pagingtiming cycle varies with...
Page 49 - Timing of the RTS0 Signal in CYCLIC SLEEP Mode 9
XT65/XT75 Hardware Interface Description 3.6 Power Saving s XT65_XT75_HD_v01.001 Page 49 of 133 2007-1-8 Confidential / Released 3.6.3 Timing of the RTS0 Signal in CYCLIC SLEEP Mode 9 In SLEEP mode 9 the falling edge of RTS0 can be used to temporarily wake up the ME. In this case the activitytime is...
Page 50 - Summary of State Transitions (Except SLEEP Mode)
XT65/XT75 Hardware Interface Description 3.7 Summary of State Transitions (Except SLEEP Mode) s XT65_XT75_HD_v01.001 Page 50 of 133 2007-1-8 Confidential / Released 3.7 Summary of State Transitions (Except SLEEP Mode) The following table shows how to proceed from one mode to another (grey column = p...
Page 51 - RTC Backup; A serial 1k
XT65/XT75 Hardware Interface Description 3.8 RTC Backup s XT65_XT75_HD_v01.001 Page 51 of 133 2007-1-8 Confidential / Released 3.8 RTC Backup The Real Time Clock (RTC) of the module’s GSM unit is supplied from a separate voltage regulator in the analogcontroller. The RTC of the GPS receiver is suppl...
Page 52 - SIM Interface; Signal
XT65/XT75 Hardware Interface Description 3.9 SIM Interface s XT65_XT75_HD_v01.001 Page 52 of 133 2007-1-8 Confidential / Released 3.9 SIM Interface The baseband processor has an integrated SIM interface compatible with the ISO 7816 IC Card standard. Thisis wired to the host interface (board-to-board...
Page 53 - Serial Interface ASC0; Port TXD @ application sends data to the module’s TXD0 signal line; for details on how to configure the RING0 line by AT^SCFG.
XT65/XT75 Hardware Interface Description 3.10 Serial Interface ASC0 s XT65_XT75_HD_v01.001 Page 53 of 133 2007-1-8 Confidential / Released 3.10 Serial Interface ASC0 XT65/XT75 offers an 8-wire unbalanced, asynchronous modem interface ASC0 conforming to ITU-T V.24 pro-tocol DCE signalling. The electr...
Page 55 - USB Interface; command and data interface and for downloading firmware.
XT65/XT75 Hardware Interface Description 3.11 USB Interface s XT65_XT75_HD_v01.001 Page 55 of 133 2007-1-8 Confidential / Released 3.11 USB Interface XT65/XT75 supports a USB 2.0 Full Speed (12Mbit/s) device interface. It can be operated on a USB 2.0 FullSpeed or High Speed root hub (a PC host), but...
Page 56 - C Interface
XT65/XT75 Hardware Interface Description 3.12 I 2 C Interface s XT65_XT75_HD_v01.001 Page 56 of 133 2007-1-8 Confidential / Released 3.12 I 2 C Interface I 2 C is a serial, 8-bit oriented data transfer bus for bit rates up to 400kbps in Fast mode. It consists of two lines, the serial data line I2CDA...
Page 57 - SPI Interface; For electrical characteristics please refer to
XT65/XT75 Hardware Interface Description 3.13 SPI Interface s XT65_XT75_HD_v01.001 Page 57 of 133 2007-1-8 Confidential / Released 3.13 SPI Interface The SPI (serial peripheral interface) is a synchronous serial interface for control and data transfer between theXT65/XT75 module and the connected ap...
Page 59 - Audio Interfaces
XT65/XT75 Hardware Interface Description 3.14 Audio Interfaces s XT65_XT75_HD_v01.001 Page 59 of 133 2007-1-8 Confidential / Released 3.14 Audio Interfaces XT65/XT75 comprises three audio interfaces available on the board-to-board connector: • Two analog audio interfaces, both with balanced or singl...
Page 60 - Speech Processing; Single-ended Microphone Input; as well as
XT65/XT75 Hardware Interface Description 3.14 Audio Interfaces s XT65_XT75_HD_v01.001 Page 60 of 133 2007-1-8 Confidential / Released 3.14.1 Speech Processing The speech samples from the ADC or DAI are handled by the DSP of the baseband controller to calculate e.g.amplifications, sidetone, echo canc...
Page 61 - and C; Differential Microphone Input; Consider that the maximum full scale input voltage is Vpp = 1.6V.
XT65/XT75 Hardware Interface Description 3.14 Audio Interfaces s XT65_XT75_HD_v01.001 Page 61 of 133 2007-1-8 Confidential / Released R A has to be chosen so that the DC voltage across the microphone falls into the bias voltage range of 1.0V to 1.6V and the microphone feeding current meets its speci...
Page 62 - Line Input Configuration with OpAmp
XT65/XT75 Hardware Interface Description 3.14 Audio Interfaces s XT65_XT75_HD_v01.001 Page 62 of 133 2007-1-8 Confidential / Released 3.14.2.3 Line Input Configuration with OpAmp Figure 25 shows an example of how to connect an opamp into the microphone circuit. The AC source (e.g. an opamp) and its ...
Page 63 - Loudspeaker Circuit; Configuration
XT65/XT75 Hardware Interface Description 3.14 Audio Interfaces s XT65_XT75_HD_v01.001 Page 63 of 133 2007-1-8 Confidential / Released 3.14.3 Loudspeaker Circuit The GSM module comprises two analog speaker outputs: EP1 and EP2. Output EP1 is able to drive a load of8Ohms while the output EP2 can drive...
Page 64 - Master Mode; Function for PCM Interface
XT65/XT75 Hardware Interface Description 3.14 Audio Interfaces s XT65_XT75_HD_v01.001 Page 64 of 133 2007-1-8 Confidential / Released In all configurations the PCM interface has the following common features: • 16 Bit linear • 8kHz sample rate • the most significant bit MSB is transferred first • 12...
Page 65 - short frame; The timing of a PCM; long frame; is shown in
XT65/XT75 Hardware Interface Description 3.14 Audio Interfaces s XT65_XT75_HD_v01.001 Page 65 of 133 2007-1-8 Confidential / Released The timing of a PCM short frame is shown in Figure 28 . The 16-bit TXDAI and RXDAI data is transferred simul- taneously in both directions during the first 16 clock c...
Page 66 - Slave Mode; The resulting distortion can be neglected in speech signals.
XT65/XT75 Hardware Interface Description 3.14 Audio Interfaces s XT65_XT75_HD_v01.001 Page 66 of 133 2007-1-8 Confidential / Released 3.14.4.2 Slave Mode In slave mode the PCM interface is controlled by an external bit clock and an external frame sync signal appliedto the BCLKIN and FSIN pins and de...
Page 68 - Restrictions during SLEEP Mode
XT65/XT75 Hardware Interface Description 3.15 Analog-to-Digital Converter (ADC) s XT65_XT75_HD_v01.001 Page 68 of 133 2007-1-8 Confidential / Released 3.15 Analog-to-Digital Converter (ADC) The ADC of the XT65/XT75 consists of 2 independent, unbalanced, multiplexed analog inputs that can be usedfor ...
Page 69 - GPIO Interface; The AT^SCPIN command configures the pin for use as GPIO.
XT65/XT75 Hardware Interface Description 3.16 GPIO Interface s XT65_XT75_HD_v01.001 Page 69 of 133 2007-1-8 Confidential / Released 3.16 GPIO Interface The XT65/XT75 has 10 GPIOs for external hardware devices. Each GPIO can be configured for use as input oroutput. All settings are AT command control...
Page 70 - Control Signals; and
XT65/XT75 Hardware Interface Description 3.17 Control Signals s XT65_XT75_HD_v01.001 Page 70 of 133 2007-1-8 Confidential / Released 3.17 Control Signals 3.17.1 Synchronization Signal The synchronization signal serves to indicate growing power consumption during the transmit burst. The signalis gene...
Page 71 - Using the SYNC Pin to Control a Status LED; For details see
XT65/XT75 Hardware Interface Description 3.17 Control Signals s XT65_XT75_HD_v01.001 Page 71 of 133 2007-1-8 Confidential / Released 3.17.2 Using the SYNC Pin to Control a Status LED As an alternative to generating the synchronization signal, the SYNC pin can be configured to drive a status LEDthat ...
Page 72 - Behavior of the RING0 Line (ASC0 Interface only); The RING0 line is available on the serial interface ASC0 (see also
XT65/XT75 Hardware Interface Description 3.17 Control Signals s XT65_XT75_HD_v01.001 Page 72 of 133 2007-1-8 Confidential / Released 3.17.3 Behavior of the RING0 Line (ASC0 Interface only) The RING0 line is available on the serial interface ASC0 (see also Section 3.10 ). The signal serves to indicat...
Page 73 - GPS Application Interface; Operating Principles
XT65/XT75 Hardware Interface Description 4 GPS Application Interface s XT65_XT75_HD_v01.001 Page 73 of 133 2007-1-8 Confidential / Released 4 GPS Application Interface The XT65/XT75 module integrates a GPS receiver which offers the full performance of GPS technology. TheGPS receiver continuously tra...
Page 74 - Operating Principles; Cold start: 34 seconds
XT65/XT75 Hardware Interface Description 4.1 Operating Principles s XT65_XT75_HD_v01.001 Page 74 of 133 2007-1-8 Confidential / Released 4.1.2 GPS Start-Up Depending on the receiver’s knowledge of last position, current time and ephemeris data, the receiver will applydifferent strategies to start-up...
Page 75 - Cold Start; Cold Start without Aiding; Figure 38: Cold start with AGPS; Warm Start
XT65/XT75 Hardware Interface Description 4.1 Operating Principles s XT65_XT75_HD_v01.001 Page 75 of 133 2007-1-8 Confidential / Released 4.1.2.1 Cold Start Cold Start without Aiding With a cold start, the GPS receiver has no knowledge of its last position or time. This may be the case if: • the RTC ...
Page 76 - Supported Protocols; NMEA Protocol
XT65/XT75 Hardware Interface Description 4.1 Operating Principles s XT65_XT75_HD_v01.001 Page 76 of 133 2007-1-8 Confidential / Released 4.1.3 Supported Protocols The GPS receiver supports three implemented protocols – NMEA, RTCM and UBX. It is able to recognize inputmessages from any of these proto...
Page 77 - Position Accuracy Improvement Possibilities; via GSM network provider (internet server) or; Satellite Based Augmentation Systems (SBAS)
XT65/XT75 Hardware Interface Description 4.1 Operating Principles s XT65_XT75_HD_v01.001 Page 77 of 133 2007-1-8 Confidential / Released 4.1.4 Position Accuracy Improvement Possibilities The accuracy of position fixes is influenced by a number of issues such as sky view, reasonable satellite geom-et...
Page 78 - Software Control; . Also, the entire set of AT commands supported by XT75 is available.; . For more information
XT65/XT75 Hardware Interface Description 4.2 GPS-GSM Interface s XT65_XT75_HD_v01.001 Page 78 of 133 2007-1-8 Confidential / Released 4.2 GPS-GSM Interface The GPS receiver is an integral part of the module and as such controlled over an internal GPS-GSM interface.It communicates over the interface ...
Page 79 - GSM Antenna Interface; Antenna Installation; State of module
XT65/XT75 Hardware Interface Description 5 GSM Antenna Interface s XT65_XT75_HD_v01.001 Page 79 of 133 2007-1-8 Confidential / Released 5 GSM Antenna Interface The GSM interface has an impedance of 50 Ω . XT65/XT75 is capable of sustaining a total mismatch at the antenna connector without any damage...
Page 80 - Antenna Pad; Antenna connected to Hirose connector:
XT65/XT75 Hardware Interface Description 5.2 Antenna Pad s XT65_XT75_HD_v01.001 Page 80 of 133 2007-1-8 Confidential / Released Figure 40: Never use antenna connector and antenna pad at the same time 5.2 Antenna Pad The antenna can be soldered to the pad, or attached via contact springs. For proper ...
Page 81 - Gold plated pad; Suitable Cable Types
XT65/XT75 Hardware Interface Description 5.2 Antenna Pad s XT65_XT75_HD_v01.001 Page 81 of 133 2007-1-8 Confidential / Released Also, consider that according to the GSM recommendations TS 45.005 and TS 51.010-01 a 50 Ω connector is mandatory for type approval measurements. This requires GSM devices ...
Page 82 - Antenna Connector; Item
XT65/XT75 Hardware Interface Description 5.3 Antenna Connector s XT65_XT75_HD_v01.001 Page 82 of 133 2007-1-8 Confidential / Released 5.3 Antenna Connector For GSM and GPS, XT65/XT75 uses an ultra-miniature SMT antenna connector supplied from Hirose Ltd. Theproduct name is: • U.FL-R-SMT The position...
Page 85 - Extraction jig
XT65/XT75 Hardware Interface Description 5.3 Antenna Connector s XT65_XT75_HD_v01.001 Page 85 of 133 2007-1-8 Confidential / Released Table 19: Ordering information for Hirose U.FL Series Item Part number HRS number Connector on XT65/XT75 U.FL-R-SMT CL331-0471-0-10 Right-angle plug shell for Ø 0.81m...
Page 86 - GPS Antenna Interface; Section
XT65/XT75 Hardware Interface Description 6 GPS Antenna Interface s XT65_XT75_HD_v01.001 Page 86 of 133 2007-1-8 Confidential / Released 6 GPS Antenna Interface In order to receive satellite signals an additional GPS antenna must be connected to the GPS part of the XT65/XT75 module. 6.1 Antenna Insta...
Page 87 - GPS Antenna; Active versus Passive Antennas; GSM Tx duty cycle
XT65/XT75 Hardware Interface Description 6.2 GPS Antenna s XT65_XT75_HD_v01.001 Page 87 of 133 2007-1-8 Confidential / Released 6.2 GPS Antenna It is possible to connect active or passive GPS antennas. In either case they must have 50 Ohm impedance. Thesimultaneous operation of GSM and GPS has been ...
Page 88 - Active Antenna
XT65/XT75 Hardware Interface Description 6.2 GPS Antenna s XT65_XT75_HD_v01.001 Page 88 of 133 2007-1-8 Confidential / Released The use of an active antenna is always advisable, if the RF-cable length between receiver and antenna exceedsabout 10 cm. For more information on GPS antenna design see [13...
Page 89 - Electrical, Reliability and Radio Characteristics; Absolute Maximum Ratings; Parameter
XT65/XT75 Hardware Interface Description 7 Electrical, Reliability and Radio Characteristics s XT65_XT75_HD_v01.001 Page 89 of 133 2007-1-8 Confidential / Released 7 Electrical, Reliability and Radio Characteristics 7.1 Absolute Maximum Ratings The absolute maximum ratings stated in Table 22 are str...
Page 90 - Operating Temperatures
XT65/XT75 Hardware Interface Description 7.2 Operating Temperatures s XT65_XT75_HD_v01.001 Page 90 of 133 2007-1-8 Confidential / Released 7.2 Operating Temperatures The values listed in Table 23 to Table 25 are applicable at maximum power control level. Note: • See Section 3.3.4 for further informa...
Page 91 - Storage Conditions; Type
XT65/XT75 Hardware Interface Description 7.3 Storage Conditions s XT65_XT75_HD_v01.001 Page 91 of 133 2007-1-8 Confidential / Released 7.3 Storage Conditions The conditions stated below are only valid for modules in their original packed state in weather protected, non-temperature-controlled storage...
Page 92 - Reliability Characteristics; Type of test
XT65/XT75 Hardware Interface Description 7.4 Reliability Characteristics s XT65_XT75_HD_v01.001 Page 92 of 133 2007-1-8 Confidential / Released 7.4 Reliability Characteristics The test conditions stated below are an extract of the complete test specifications. Table 28: Summary of reliability test c...
Page 93 - Pin Assignment and Signal Description
XT65/XT75 Hardware Interface Description 7.5 Pin Assignment and Signal Description s XT65_XT75_HD_v01.001 Page 93 of 133 2007-1-8 Confidential / Released 7.5 Pin Assignment and Signal Description The Molex board-to-board connector on XT65/XT75 is an 80-pin double-row receptacle. The position of theb...
Page 101 - Power Supply for Active GPS Antenna; Antenna connector IO; Short circuit detection I; Short circuit current I
XT65/XT75 Hardware Interface Description 7.6 Power Supply for Active GPS Antenna s XT65_XT75_HD_v01.001 Page 101 of 133 2007-1-8 Confidential / Released 7.6 Power Supply for Active GPS Antenna The following table describes the electrical characteristics at the GPS antenna connector. Table 30: Power ...
Page 102 - Power Supply Ratings
XT65/XT75 Hardware Interface Description 7.7 Power Supply Ratings s XT65_XT75_HD_v01.001 Page 102 of 133 2007-1-8 Confidential / Released 7.7 Power Supply Ratings Table 31: Power supply ratings Parameter Description Conditions Min Typ Max Unit BATT+ Supply voltage Directly measured at module. Voltag...
Page 103 - Power Supply Ratings; Mode; Timeslot configuration
XT65/XT75 Hardware Interface Description 7.7 Power Supply Ratings s XT65_XT75_HD_v01.001 Page 103 of 133 2007-1-8 Confidential / Released AT parameters are given in brackets <..> and marked italic . Statements on EGPRS apply to XT75 only. Table 32: Current consumption during Tx burst for GSM 8...
Page 104 - Timeslot configuration 1Tx / 1Rx
XT65/XT75 Hardware Interface Description 7.7 Power Supply Ratings s XT65_XT75_HD_v01.001 Page 104 of 133 2007-1-8 Confidential / Released AT parameters are given in brackets <..> and marked italic . Statements on EGPRS apply to XT75 only. Table 33: Current consumption during Tx burst for GSM 1...
Page 105 - Electrical Characteristics of the Voiceband Part
XT65/XT75 Hardware Interface Description 7.8 Electrical Characteristics of the Voiceband Part s XT65_XT75_HD_v01.001 Page 105 of 133 2007-1-8 Confidential / Released 7.8 Electrical Characteristics of the Voiceband Part 7.8.1 Setting Audio Parameters by AT Commands The audio modes 2 to 6 can be adjus...
Page 106 - Electrical Characteristics of the Voiceband Part; Audio Programming Mode
XT65/XT75 Hardware Interface Description 7.8 Electrical Characteristics of the Voiceband Part s XT65_XT75_HD_v01.001 Page 106 of 133 2007-1-8 Confidential / Released 7.8.2 Audio Programming Mode The audio programming model shows how the signal path can be influenced by varying the AT command param-e...
Page 107 - Characteristics of Audio Modes
XT65/XT75 Hardware Interface Description 7.8 Electrical Characteristics of the Voiceband Part s XT65_XT75_HD_v01.001 Page 107 of 133 2007-1-8 Confidential / Released 7.8.3 Characteristics of Audio Modes The electrical characteristics of the voiceband part depend on the current audio mode set with th...
Page 108 - Voiceband Receive Path
XT65/XT75 Hardware Interface Description 7.8 Electrical Characteristics of the Voiceband Part s XT65_XT75_HD_v01.001 Page 108 of 133 2007-1-8 Confidential / Released 7.8.4 Voiceband Receive Path Test conditions: • The values specified below were tested to 1kHz with default audio mode settings, unles...
Page 110 - Voiceband Transmit Path
XT65/XT75 Hardware Interface Description 7.8 Electrical Characteristics of the Voiceband Part s XT65_XT75_HD_v01.001 Page 110 of 133 2007-1-8 Confidential / Released 7.8.5 Voiceband Transmit Path Test conditions: • The values specified below were tested to 1kHz and default settings of audio modes, u...
Page 111 - Air Interface; Figure 4
XT65/XT75 Hardware Interface Description 7.9 Air Interface s XT65_XT75_HD_v01.001 Page 111 of 133 2007-1-8 Confidential / Released 7.9 Air Interface Test conditions: All measurements have been performed at T amb = 25×C, V BATT+ nom = 4.0V. The reference points used on XT65/XT75 are the BATT+ and GND...
Page 112 - Electrostatic Discharge; Special ESD protection provided on XT65/XT75:; Specification / Requirements
XT65/XT75 Hardware Interface Description 7.10 Electrostatic Discharge s XT65_XT75_HD_v01.001 Page 112 of 133 2007-1-8 Confidential / Released 7.10 Electrostatic Discharge The GSM engine is not protected against Electrostatic Discharge (ESD) in general. Consequently, it is subjectto ESD handling prec...
Page 113 - Mechanics; Mechanical Dimensions of XT65/XT75; For further details see
XT65/XT75 Hardware Interface Description 8 Mechanics s XT65_XT75_HD_v01.001 Page 113 of 133 2007-1-8 Confidential / Released 8 Mechanics 8.1 Mechanical Dimensions of XT65/XT75 Figure 50 shows the top view of XT65/XT75 and provides an overview of the board's mechanical dimensions. For further details...
Page 115 - Mounting XT65/XT75 to the Application Platform
XT65/XT75 Hardware Interface Description 8.2 Mounting XT65/XT75 to the Application Platform s XT65_XT75_HD_v01.001 Page 115 of 133 2007-1-8 Confidential / Released 8.2 Mounting XT65/XT75 to the Application Platform There are many ways to properly install XT65/XT75 in the host device. An efficient ap...
Page 116 - Electrical
XT65/XT75 Hardware Interface Description 8.3 Board-to-Board Application Connector s XT65_XT75_HD_v01.001 Page 116 of 133 2007-1-8 Confidential / Released 8.3 Board-to-Board Application Connector This section provides the specifications of the 80-pin board-to-board connector used to connect XT65/XT75...
Page 120 - Sample Application
XT65/XT75 Hardware Interface Description 9 Sample Application s XT65_XT75_HD_v01.001 Page 120 of 133 2007-1-8 Confidential / Released 9 Sample Application Figure 54 shows a typical example of how to integrate a XT65/XT75 module with an application. Usage of the various host interfaces depends on the...
Page 122 - 0 Reference Approval; Reference Approval; Reference Equipment for Type Approval; Siemens XT65/XT75 cellular engine
XT65/XT75 Hardware Interface Description 10 Reference Approval s XT65_XT75_HD_v01.001 Page 122 of 133 2007-1-8 Confidential / Released 10 Reference Approval 10.1 Reference Equipment for Type Approval The Siemens reference setup submitted to type approve XT65/XT75 consists of the following components...
Page 123 - Compliance with FCC Rules and Regulations; will
XT65/XT75 Hardware Interface Description 10.2 Compliance with FCC Rules and Regulations s XT65_XT75_HD_v01.001 Page 123 of 133 2007-1-8 Confidential / Released 10.2 Compliance with FCC Rules and Regulations The Equipment Authorization Certification for the Siemens reference application described in ...
Page 124 - Appendix; List of Parts and Accessories; Description
XT65/XT75 Hardware Interface Description 11.1 List of Parts and Accessories s XT65_XT75_HD_v01.001 Page 124 of 133 2007-1-8 Confidential / Released 11 Appendix 11.1 List of Parts and Accessories Table 41: List of parts and accessories Description Supplier Ordering information XT65 Siemens Standard m...
Page 126 - Fasteners and Fixings for Electronic Equipment
XT65/XT75 Hardware Interface Description 11.2 Fasteners and Fixings for Electronic Equipment s XT65_XT75_HD_v01.001 Page 126 of 133 2007-1-8 Confidential / Released 11.2 Fasteners and Fixings for Electronic Equipment This section provides a list of suppliers and manufacturers offering fasteners and ...
Page 129 - Data Sheets of Tested Batteries
XT65/XT75 Hardware Interface Description 11.3 Data Sheets of Tested Batteries s XT65_XT75_HD_v01.001 Page 129 of 133 2007-1-8 Confidential / Released 11.3 Data Sheets of Tested Batteries The following two data sheets have been provided by VARTA Microbattery GmbH. Click here for sales contacts and fu...
Page 131 - Specification
XT65/XT75 Hardware Interface Description 11.3 Data Sheets of Tested Batteries s XT65_XT75_HD_v01.001 Page 131 of 133 2007-1-8 Confidential / Released Figure 57: VARTA PoLiFlex® Lithium Poly- mer battery 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 A A B B C C D D E E F F Bearb./Desig. Erst./Orig. G epr./Check. D...
Page 132 - Mounting Advice Sheet
XT65/XT75 Hardware Interface Description 11.4 Mounting Advice Sheet s XT65_XT75_HD_v01.001 Page 132 of 133 2007-1-8 Confidential / Released 11.4 Mounting Advice Sheet To prevent mechanical damage, be careful not to force, bend or twist the module. Be sure it is positioned flatagainst the host device...
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