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Confidential 
MANUAL 

1(51)

Document number 

Revision 

7/198 17-LXE 108 566 Uen 

Prepared by 

Date 

 

SEM/BMDG JEREMY ROTH 

2006-02-17 

 

Contents responsible if other than preparer 

Remarks 

 

Approved by 

SEM/BMDG (JEREMY ROTH) 

 

 

Note: Any hard copy of this document is for reference only. 

Due to template and application dependencies the header and footer may fail to display correct data. It is the 

responsibility of the user to ensure that they have a correct and valid version. Any outdated hard copy is invalid and must be removed from possible use.

 

 

 
 
 
 
 

GM-41 Phase II Integrator’s Manual 

 
 
 
 
 

 

 
 
 
 
 
 
 

Summary of Contents for GM-41 Phase II

Page 1: ...ved by SEM BMDG JEREMY ROTH Note Any hard copy of this document is for reference only Due to template and application dependencies the header and footer may fail to display correct data It is the resp...

Page 2: ...3 5 SIM Interface 21 2 3 6 Analog Audio Interface Signals 24 2 3 7 Digital Audio 25 2 4 ANTENNA CONNECTOR 28 3 RECOMMENDED APPLICATION CIRCUITRY 30 3 1 SYSTEM CONNECTOR 30 3 1 1 Power Signals Recommen...

Page 3: ...19 ATMS Electrical Parameters 24 Table 20 AFMS Electrical Parameters 24 Table 21 PCM Data Signals 25 Table 22 PCM Electrical Parameters 25 Table 23 PCM Data Word 26 Table 24 PCM Timing Diagram 27 Tab...

Page 4: ...Detect 42 Figure 30 Phone Module Power ON OFF 44 Figure 31 Alarm timing 45 Revision History RELEASE DATE SUMMARY OF CHANGES A 2003 07 21 First official release B 2003 07 31 Added Hirshmann vender Ant...

Page 5: ...gned to meet the environmental requirements of a large range of commercial and industrial users 1 2 How to read the manual This manual is divided into seven chapters Chapter 1 gives a general overview...

Page 6: ...50 LXE 108 585 Uen Rev A SIM Driver Description EN 60950 1 ETSI Safety Norm 1 5 Abbreviations AGND Analog GrouND AT Attention command CTS Clear To Send DCE DTE DCD Data Carrier Detected Tone from mode...

Page 7: ...application must provide a cover to the module in order to avoid any part of the module to be accessible by the final user Chapters 1 7 17 and 2 1 of EN 60950 1 The cover of the module provided by the...

Page 8: ...ntegrating the GM 41 Module 2 1 Overview The GM 41 is a dual band EGSM GSM 900MHz and DCS GSM 1800MHz transceiver module It is intended for mounting into an application developer s chassis to provide...

Page 9: ...this document is for reference only Due to template and application dependencies the header and footer may fail to display correct data It is the responsibility of the user to ensure that they have a...

Page 10: ...are shielded using sheet metal cans to prevent internal and external electromagnetic interference from degrading the module s performance and to prevent the module from interfering with other nearby d...

Page 11: ...reference only Due to template and application dependencies the header and footer may fail to display correct data It is the responsibility of the user to ensure that they have a correct and valid ve...

Page 12: ...on off hardware wise active low 13 SIMRST SIM Reset output from Module to Application 14 SIMVCC SIM VCC output from Module to Application 15 HW_SD Hardware shutdown 16 SIMDATA SIM Data binary input o...

Page 13: ...Circuitry 2 3 2 1 VCC_MAIN Limits Parameter Symbol Condition Minimum Nominal Maximum Units Normal SIM 4 5 5 0 5 5 VIN Extended SIM cable driver 4 91 5 0 5 5 Volt 0 4kHz 100 Vripple 4kHz 50 mV In rush...

Page 14: ...e a correct and valid version Any outdated hard copy is invalid and must be removed from possible use Ch1 In rush current on VCC_MAIN VCC_AUX Ch1 In rush current on VCC_MAIN VCC_AUX Ch2 Voltage supply...

Page 15: ...le The module will charge an external backup capacitor while MODULE_PWR_EN_B is held low It is also possible for the application to supply the VRTC through a regulator If the application use the exter...

Page 16: ...C_MAIN and VCC_AUX Electrical characteristics Iaverage 0 6 A Ipeak 2 A Mounting Holes All mounting holes are at the same potential as the GND pins As such it is recommended although not required that...

Page 17: ...try The signal is applied to the system interface when the module is powered up The signal can also be used as an application wakeup signal if the Alarm function of the RTC is used Limits Parameter Sy...

Page 18: ...from the module is used to indicate to the application if an incoming call or SMS is available A falling edge indicates incoming call or message The signal remains low for a period of time before goin...

Page 19: ...it length Table 12 Serial Channel Electrical Parameters Note The signal levels do not match the standard RS232 V 28 If the application signal levels are not compatible with the CMOS levels described i...

Page 20: ...re programming the module and as data logger during development The standard character format is 1 start bit 8 data bits non parity and 1 stop bit In all there are 10 bits per character Default data r...

Page 21: ...a 5 V SIM card is fitted SIM voltage levels as shown in the following table are dependent on the type of SIM card detected by the module 2 3 5 1 SIMVCC The SIMVCC is the supply voltage for an externa...

Page 22: ...ut voltage VOH IO 20 A 5V mode 4 4 Volt Clock frequency fclk 3 25 MHz Duty Cycle 40 50 60 Rise and fall time 9 of period tr tf 27 ns Table 16 SIMCLK Electrical Parameters 2 3 5 4 SIMDATA The SIMDATA i...

Page 23: ...sible use 2 3 5 5 SIMDET This signal is used by the application to indicate whether an external SIM card is present Low level indicates SIM card present A high level or high Z indicates SIM card not a...

Page 24: ...dB from Nominal 300 3400 Hz Input Impedance Zin At 1kHz 2 0 k Max input level 3 77 Vp p Input level Vin Generates 16dBm0 150 mVrms Application output Resistance RoutApp 200 Application output capacita...

Page 25: ...audio lines ATMS and AFMS 2 3 7 Digital Audio The GM 41 provides digital audio capability over the system connector The digital audio signals enable the connection of a digital audio source The receiv...

Page 26: ...s The output data is compatible with the linear PCM data I O of an industry standard Texas Instrument DSP Each PCM word shall contain 16 bits D0 D15 D13 D1 is the 2 s complement value of the 13 bit PC...

Page 27: ...put from module PCMSYNC Output from module PCMULD Input to module PCMDLD Output from module Table 24 PCM Timing Diagram Figure 10 PCM timing diagram Name Description Min Nom Max Units PCMCLK clock fre...

Page 28: ...MCX and BNC A standard 5 pin thru hole pattern has been selected because of the wide variety of compatible connectors available and also for the maximum mechanical strength For applications where a b...

Page 29: ...alid and must be removed from possible use Figure 13 SMA Right Angle Through Hole Connector Dimensions are in mm Electrical performance parameters are valid only when the terminating impedance at the...

Page 30: ...and ground The pin direction in this table is seen from the application s point of view Group Pin No Name Application Requirements App I O HW flow control is by default enabled in the phone module 27...

Page 31: ...alid and must be removed from possible use 23 VPPFLASH DCD DCD Logic input from phone module This signal is set default high It goes low indicating that a data or fax call is established CONNECT recei...

Page 32: ...resistor resides in the phone module OOC 2 VREF Phone module logic voltage reference input to application This signal provides the application with the logic system voltage level used by the phone mo...

Page 33: ...Supply 3 1 1 1 VCC_MAIN This power supply input to the module Baseband and receiver can use the same supply as VCC_AUX 3 1 1 2 VCC_AUX GM 41 has no internal capacitance on VCC_AUX to supply the large...

Page 34: ...mmendation 3 1 2 2 VREF This signal located on pin 2 in the system connector provides the application with its logic supply voltage VDIG The main purpose for this signal is for the application to curr...

Page 35: ...ooter may fail to display correct data It is the responsibility of the user to ensure that they have a correct and valid version Any outdated hard copy is invalid and must be removed from possible use...

Page 36: ...s deregistration from the network which is required for proper operation 3 1 3 SIM Signals Recommended Circuitry By default the external SIM interface supports a 250mm cable All signals except SIMDET...

Page 37: ...application two CMOS outputs from phone module and one bi directional signal 3 1 4 1 TD RD CTS RTS DTR All signals are CMOS type Figure 20 Data Signal Recommendation 3 1 4 2 VPPFLASH DCD This signal l...

Page 38: ...ay fail to display correct data It is the responsibility of the user to ensure that they have a correct and valid version Any outdated hard copy is invalid and must be removed from possible use Figure...

Page 39: ...d from the module The figure below shows an example of a microphone implementation Microphone solution The microphone should preferably be connected to its pre amplifier differentially which will mini...

Page 40: ...ution Apply a DC bias level on the non inverting input and input the signal through a coupling capacitor on the inverting input C4 and R4 determine the HP filter characteristics while C5 and R5 determ...

Page 41: ...3 1 6 4 Creating an analog reference voltage BIAS The BIAS reference should be generated from the analog supply voltage VANA and be referenced to the analog ground not AGND This reference shall be use...

Page 42: ...both ATMS and AFMS 3 2 Optional Antenna Diagnostic The GM41 module includes a feature that indicates whether an antenna is available This feature requires the application to have a 10k resistor of no...

Page 43: ...nd MODULE_PWR_EN_B can all be set active at the same time VREF will go active high out to the application as soon as the internal regulators becomes active 2 Power OFF 2 7 The application provides an...

Page 44: ...LA VREF The phone module reference voltage goes active high 0 8V to 2 0V for 250ms when the alarm activates The low to high transition of this signal shall be used to wake up the application The appli...

Page 45: ...le use Figure 31 Alarm timing Limits Parameter Min Max Units tInd 240 260 ms Table 28 Alarm timing 4 3 SIM Insertion and Removal The module detects whether the SIM status changes on both internal and...

Page 46: ...ngth of an SMS message is 160 characters when using 7 bit encoding For 8 bit data the maximum length is 140 characters The module supports concatenated messages to extend this function It is disabled...

Page 47: ...dards SIM Card Network and Subscription Connection of Components to GM 41 Antenna Possible Communication Disturbances 6 2 Where to Install the Module Make sure that the module is installed so that the...

Page 48: ...gh If the AT command CFUN 0 was used a SHUTDOWN COMPLETE message will be sent back to the application During the shutdown phase the device must perform several functions These functions include but ar...

Page 49: ...e risk of lightning Follow the instructions provided by the antenna manufacturer Never connect more than one module to a single antenna The module can be damaged by radio frequency energy from the tra...

Page 50: ...rrect and valid version Any outdated hard copy is invalid and must be removed from possible use interference caused when direct and reflected signals reach the mobile phone simultaneously Flat surface...

Page 51: ...915 RX 935 960 TX 1710 1785 RX 1805 1880 Antenna impedance 50 50 50 Operational VSWR Maximum 2 1 2 1 2 1 Maximum VSWR before damage 8 1 8 1 8 1 Environmental specifications Operating temperature range...

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