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GE863 Family Hardware User Guide

1. 10k 8 Vv 02 uP_oUT2 Z 9 g Boe BW Re Mn IFS 43 5 Vo a IV 5 ae 0402 _ gt END kescht Reproduction forbidden without Telit Communications S p A s written authorization AU Rights Reserved Page 21 of 81 Telit GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 4 3 Power Supply The power supply circuitry and board layout are very important parts in the full product design and they strongly reflect on the product overall performance hence read carefully the requirements and the guidelines that follow for a proper design 4 4 Power Supply Requirements SW rel 7 02 xx4 or SW rel 7 03 x00 or older newer Nominal Supply Voltage 3 8 V 3 8 V Max Supply Voltage 4 2V 45V Supply voltage range 3 4V 4 2V 3 22 V 4 5 V Mode Average mA Mode Description Turned OFF OFF lt 26 uA OFF current IDLE mode with GPS OFF Stand by mode no call in progress GPS OFF AT CFUN 1 24 0 Normal mode full functionality of the module AT CFUN 4 22 0 Disabled TX and RX module is not registered on the network Power saving CFUN 0 module registered on the network and can receive voice call or an SMS but it is not possible to send AT AT CFUN 0 or 26 AT CFUN 5 IDLE mode with GPS ON full power mode AT CFUN 1 113 0 AT CFUN 4 111 0 IDLE mode with GPS ON trickle power mode AT CFUN 1 64 0 AT CFUN 4 62 0 IDLE mode with GPS ON push to fix mode AT CFUN 1 24 0 AT CFUN 4 2
2. O SSC SCH _ Reproduction forbidden without Telit Communications S p A s written authorization All Rights Jm Page 17 of 81 E ALP Fi F Telit GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 NOTE Do not use any pull up resistor on the RESET line nor any totem pole digital output Using pull up resistor may bring to latch up problems on the GE863 GPS power regulator and improper functioning of the module The line RESET must be connected only in open collector configuration TIP The unconditional hardware shutdown must be always implemented on the boards and the software must use it as an emergency exit procedure A flow chart with a proper restart procedure is detailed below Reset LOW A Delay 200ms Reset HIGH Wi PWRMON OFF or 10s timeout _ Reproduction forbidden without Telit Communications S p A s written authorization All Rights _ Page 18 of 81 Telit GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 For example 1 Let us assume you need to drive the RESET pad with a totem pole output of a 3 5 V microcontroller uP_OUT2 gt RESET a e E Ge uP_ouTe OE g A SE Re 1F5 43 5 Y i DN o SI 0 25 0402 _ Reproduction forbidden without Telit Communications S p A s written authorization AU Rights Reserved Pa
3. or with a bar over the name The GE863 turns fully on also by supplying power to the Charge pad Module provided with a battery on the VBATT pads TIP To check if the device has powered on the hardware line PWRMON must be monitored After 900ms the line raised up the device could be considered powered on PWRMON line rises up also when supplying power to the Charge pad e Reproduction forbidden without Telit Communications S p A s written authorization All Rights Reserved Page 13 of 81 Telit GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 For example 1 Let us assume you need to drive the ON pad with a totem pole output of a 3 5 V microcontroller uP_OUT1 2 Let us assume you need to drive the ON pad directly with an ON OFF button OND _ Reproduction forbidden without Telit Communications S p A s written authorization All Rights e Page 14 of 81 Telit GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 A flow chart with proper turn on procedure is detailed below PWRMON ON or 2s timeout Na s s Reproduction forbidden without Telit Communications S p A s written authorization All Rights Reserved Page 15 of 81 4 2 4 2 1 Telit GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 Turning OFF the GE863 Turning off of the device can be done in three ways e by software command see GE863 Software User G
4. PCB Line Guidelines e Ensure that the antenna line impedance is 50 ohm e Keep the antenna line on the PCB as short as possible to reduce the loss e Antenna line must have uniform characteristics constant cross section avoid meanders and abrupt curves e Keep one layer of the PCB used only for the Ground plane if possible e Surround on the sides over and under the antenna line on PCB with Ground avoid having other signal tracks facing directly the antenna line of track e The ground around the antenna line on PCB has to be strictly connected to the Ground Plane by placing vias once per 2mm at least Telit GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 e Place EM noisy devices as far as possible from GE863 GPS antenna line e Keep the antenna line far away from the GE863 GPS power supply lines e Keep the antenna line far away from the GE863 GPS GSM RF lines e f you have EM noisy devices around the PCB hosting the GE863 GPS such as fast switching ICs take care of the shielding of the antenna line by burying it inside the layers of PCB and surround it with Ground planes or shield it with a metal frame cover e f you do not have EM noisy devices around the PCB of GE863 GPS use a strip line on the superficial copper layer for the antenna line The line attenuation will be lower than a buried one 5 6 GPS Antenna Installation Guidelines e The GE863 GPS due to its characteristics of sensitivi
5. e Reproduction forbidden without Telit Communications S p A s written authorization All Rights Reserved Page 30 of 81 4 5 3 Telit GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 For the heat generated by the GE863 you can consider it to be during the transmission of 1W max during CSD VOICE calls and 2W max during class10 GPRS upload This generated heat will be mostly conducted to the ground plane under the GE863 you must ensure that your application can dissipate it Power Supply PCB Layout Guidelines As seen on the electrical design guidelines the power supply must have a low ESR capacitor on the output to cut the current peaks and a protection diode on the input to protect the supply from spikes and polarity inversion The placement of these components is crucial for the correct working of the circuitry A misplaced component can be useless or can even decrease power supply performances e The Bypass low ESR capacitor must be placed close to the Telit GE863 power input pads or in the case the power supply is a switching It can be placed close to the inductor to cut the ripple provided by the PCB trace from the capacitor The GE863 is wide enough to ensure a dropless connection even during 2A current peaks e The protection diode must be placed close to the input connector where the power source is drained e The PCB traces from the input connector to the power regulator IC must be wide enough to ensure
6. in case of GE863 QUAD PY SIM 26 RX_TRACE RX data for GPS control RX data for Debug CMOS 2 8V in case of GE863 QUAD PY SIM 27 VBATT Main power supply Power 28 GND Ground Power 29 STAT_LED O Status indicator led CMOS 1 8V 30 AXE Handsfree switching 100K 2 CMOS 2 8V Kn pisac Reproduction forbidden without Telit Communications S p A s written authorization All Rights Reserved Page 9 of 81 Telit GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 e Signal UO Function ert de Type 31 VAUX1 Power output for external accessories 32 GPIO4 IO GPIO4 Configurable general purpose I O pin 4 7KQ CMOS 2 8V 33 GPIO2 I O GPIO2 Configurable general purpose UO pin CMOS 2 8V JDR Jammer Detect Output 34 GPIO1 IO GPIO1 Configurable general purpose UO pin CMOS 2 8V 35 CHARGE Al Charger input Power 36 GND Ground Power 37 C103 TXD Serial data input TXD from DTE CMOS 2 8V 38 C104 RXD O Serial data output to DTE CMOS 2 8V 39 C108 DTR Input for Data terminal ready signal DTR CMOS 2 8V from DTE 40 C105 RTS Input for Request to send signal RTS from CMOS 2 8V DTE 41 C106 CTS O Output for Clear to send signal CTS to DTE CMOS 2 8V 42 C109 DCD O Output for Data carrier detect signal DCD CMOS 2 8V to DTE 43 C107 DSR O Output for Data set ready signal DSR to CMOS 2 8V DTE 44 C125 RING O Output for Ring indicator signal RI to DTE CMOS 2 8V 45 GND Ground Power 46 ON_OFF Input command for switching
7. 25 03 09 8 9 Using the Temperature Monitor Function 8 9 1 Short Description The Temperature Monitor is a function of the module that permits to control its internal temperature and if properly set see the FTEMPMON command on AT Interface guide it raises to High Logic level a GPIO when the maximum temperature is reached 8 9 2 Allowed GPIO The AT TEMPMON set command could be used with one of the following GPIO 34 pgn PI Configurable ouoe 29 14A 1mA GPIO 6 GPIO08 ier tas CMOS 2 8V 1uA 4mA 5 GPIO09 Soe eae CMOS 2 8V 1uA 4mA A GPIO 10 EE CMOS 2 8V 1uA 4mA 1 aer ER ee CMOS 2 8V 1yA 1mA 60 GPIO14 EE CMOS 2 8V 1uA 4mA g opp GPIO15 Configurable CMOS 2 8V 1yA 1mA 64 GPIO 16 EE CMOS 2 8V 1uA 4mA 59 GPIO 17 A las CMOS 2 8V 14A 1mA 76 GPIO18 SC CMOS 2 8V 1uA 4mA The set command could be used also with one of the following GPIO but in that case the alternate function is not usable 33 GPIO 02 E CMOS 2 8V 1yA 1mA Alternate function JDR GPIO GPIO05 Configurable Alternate function 53 GPIO 05 GPIO CMOS 2 8V 1uA 1mA RFTXMON GPIO07 Configurable Alternate function 51 GPIO 07 GPIO CMOS 2 8V 1y4A 1mA BUZZER ms gt Reproduction forbidden without Telit Communications S p A s written authorization All Rights Reserved Page 61 of 81 Telit GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 8 10 Indication of Network Service Availability The STAT_LED pin status shows information o
8. Signal Min Max RESET Input high 2 0V 2 2V RESET Input low OV 0 2V this signal is internally pulled up so the pin can be left floating if not used If unused this signal may be left unconnected If used then it must always be connected with an open collector transistor to permit to the internal circuitry the power on reset and under voltage lockout functions Ke Telit GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 6 Serial Ports 6 1 GE863 GPS Serial Ports The serial port on the Telit GE863 GPS is the core of the interface between the module and OEM hardware 4 serial ports are available on the module e MODEM SERIAL PORT e MODEM SERIAL PORT 2 GPS CONTROL PORT e GPS SERIAL PORT A SIRF BINARY e GPS SERIAL PORT B NMEA 6 2 GE863 QUAD PY SIM Serial Ports Several configurations can be designed for the serial port on the OEM hardware but the most common are e RS232 PC com port e microcontroller UART 2 8V 3V Universal Asynchronous Receive Transmit e microcontroller UART 5V or other voltages different from 2 8V kescht Reproduction forbidden without Telit Communications S p A s written authorization All Rights Reserved Page 40 of 81 Telit GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 6 3 Modem Serial Port Several configurations can be designed for the serial port on the OEM hardware but the most common are e RS232 PC com port e mic
9. 81 5 7 1 L F Telit GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 Reset Signal Signal Function UO BGA Ball RESET Phone reset 47 RESET is used to reset the GE863 modules Whenever this signal is pulled low the GE863 is reset When the device is reset it stops any operation in progress After the release of the reset GE863 GPS is unconditionally shut down in case of GE863 QUAD PY SIM the reset line perform an unconditional restart without doing any detach operation from the network where it is registered This behavior is not a proper shut down because GSM devices are requested to issue a detach request on turn off For this reason the Reset signal must not be used to normally shutting down the device but only as an emergency exit in the rare case the device remains stuck waiting for some network response The RESET is internally controlled at start up to achieve always a proper power on reset sequence There is no need to control this pin at start up it may only be used to reset a device if it is not responding to any command NOTE Do not use this signal to power off the GE863 Use the ON OFF signal to perform this function or the ATHSHDN command Zi TS gt w i d y pa Y lt S A gt TA FE d Py ma Oe Keen Reproduction forbidden without Telit Communications S p A s written authorization All Rights Reserved Page 39 of 81 Reset Signal Operating Levels
10. A ms n A Reproduction forbidden without Telit Communications S p A s written authorization All Rights Reserved Page 8 of 81 Telit GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 3 GE863 Module Connections 3 1 PIN OUT BGA Internal Ball Signal UO Function Pull up Type 1 GPIO13 UO GPIO13 CMOS 2 8V 2 GPIO12 1 0 GPIO12 47KQ CMOS 2 8V 3 GPIO11 1 0 GPIO11 4 7KQ CMOS 2 8V 4 GPIO10 I O GPIO10 CMOS 2 8V 5 GPIO9 1 0 GPIO9 CMOS 2 8V 6 GPIO8 1 0 GPIO8 CMOS 2 8V 7 RESERVED RESERVED 8 GND Ground Power 9 EAR_MT AO Handset earphone signal output phase Audio 10 EAR Mit AO Handset earphone signal output phase Audio 11 EAR_HF AO Handsfree ear output phase Audio 12 EAR_HF AO Handsfree ear output phase Audio 13 MIC_MT Al Handset microphone signal input phase Audio 14 MIC_MT Al Handset microphone signal input phase Audio 15 MIC_HF Al Handsfree microphone input phase Audio 16 MIC_HF Al Handsfree microphone input phase Audio 17 GND Ground Power 18 SIMCLK O External SIM signal Clock 1 8 3V ONLY 19 SIMRST O External SIM signal Reset 1 8 3V ONLY 20 SIMIO 1 0 External SIM signal Data I O 1 8 3V ONLY 21 SIMIN I O External SIM signal Presence active low 47KQ CMOS 2 8V 22 SIMVCC External SIM signal Power 1 8 3V ONLY 23 ADC_IN1 Al Analog Digital converter input A D 24 VRTC AO VRTC Backup capacitor Power 25 TX_TRACE TX data for GPS control TX data for Debug CMOS 2 8V
11. PCB LINE GUIDELINES essessseneoeeessseretresserrstrrtsseseeestssssrsernesrsserioernesseseneestsssserernesssserrnee 34 5 3 GSM ANTENNA INSTALLATION GUIDELINES ss nesseessseoeeressesettetsserertertssssrrerntsrsseroernessesnerstsssserernesssserrnee 34 5 4 GPS ANTENNA RGOUIREMENTS ts tnsrrtre ts tsseroe rnes resners es seserereesensere nee 35 5 4 1 Combined ET da airada dada citada 33 5 4 2 Linear EE checked 35 5 4 3 LNA and Front End Design Considerotions 35 5 5 GPS ANTENNA PCB LINE GUIDELINES cccccceessssscecececeesenaecececessesseaeeecececeeseaeaesececsesssaeaeseeseeesenseaeseeeeeeeenees 36 5 6 GPS ANTENNA INSTALLATION GUIDELINES sosssnnensesseseseetrssertrresreserreerressreernerrssenrnernesreserrrerssssrrrrneensserenet 37 5 7 LOGIC LEVEL PECIFICA Ne EE 38 5 7 1 RESCUE Signal otosi a raea E A A A a O EEE A ENE E EO S E E NERA e 39 ANA selespesnesessasesessasuesssscuaceesassesesss 40 6 1 GE863 GPS SERIAL PORTS ta 40 6 2 GE863 QUAD PY SIM SERIAL Pops 40 6 3 MODEM SERIAL PORT c 41 6 4 GE863 GPS SECONDARY Pop 43 6 4 1 Modem Serial Port 2 GPS Conmal 43 6 4 2 GPS Serial Port A SIRF Rina 43 6 4 3 GPS Serial Port B ONMEA petisie ea i E e Eaa Ere ai arees 43 6 5 GE863 QUAD PY SIM SECONDARY Pop 44 6 5 1 Modem Serial Port 2 Python Debug AA 44 6 6 RS232 LEVEL TRANSLATION eerror ecseri nainii re ENEN nono nono no conoce nono nonononononononononononononononononenononos 44 6 7 5V UAR
12. PCB has to be strictly connected to the Ground Plane by placing vias once per 2mm at least e Place EM noisy devices as far as possible from GE863 antenna line e Keep the antenna line far away from the GE863 power supply lines e If you have EM noisy devices around the PCB hosting the GE863 such as fast switching ICs take care of the shielding of the antenna line by burying it inside the layers of PCB and surround it with Ground planes or shield it with a metal frame cover e If you do not have EM noisy devices around the PCB of GE863 by using a strip line on the superficial copper layer for the antenna line the line attenuation will be lower than a buried one 5 3 GSM Antenna Installation Guidelines e Install the antenna in a place covered by the GSM signal e The Antenna must be installed to provide a separation distance of at least 20 cm from all persons and must not be co located or operating in conjunction with any other antenna or transmitter e Antenna must not be installed inside metal cases e Antenna must be installed also according Antenna manufacturer instructions e Reproduction forbidden without Telit Communications S p A s written authorization All Rights Reserved Page 34 of 81 5 4 5 4 1 5 4 2 5 4 3 Telit GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 GPS Antenna Requirements The GE863 GPS module is not provided with an internal LNA amplifier The use of an
13. T L type Bridged Tie Load and the OEM circuitry must be designed bridged to reduce the common mode noise typically generated on the ground plane and to get the maximum power output from the device however a single ended circuitry can also be designed for particular OEM application needs Reproduction forbidden without Telit Communications S p A s written authorization All Rights Reserved Page 52 of 81 Telit GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 7 2 2 Output Lines Characteristics Line Coupling DC Line Type Bridged Output load resistance 2140 Internal output resistance 4 Q typical Signal bandwidth 150 4000 Hz 3 dB Differential output voltage 328mVrms 16 Q 12dBFS SW volume level step 2 dB Number of SW volume steps 10 Line Coupling DC Line Type Bridged Output load resistance 2140 Internal output resistance 40 gt 1 70 Signal bandwidth 150 4000 Hz 3 dB Max Differential output voltage 1310 MVms typ open circuit Max Single Ended output 656 mVims typ open circuit voltage SW volume level step 2dB Number of SW volume steps 10 kescht Reproduction forbidden without Telit Communications S p A s written authorization All Rights e Page 53 of 81 Telit GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 8 General Purpose I O The general purpose I O pads can be configured to act in three different ways e input e output e alternate function int
14. active antenna is important to achieve a good performance The module is provided of an Antenna supply circuit with the following characteristics e supply voltage referred to VBATT Must accept values from 3 4 to 4 2 V DC e supply enable controlled internally by the BB e current measurement circuit readable also with AT commands e voltage measurement circuit readable also with AT commands e HW Protection for antenna short circuit if consumption exceeds 40mA Combined GPS Antenna The use of combined GPS antennas is NOT recommended this solution could generate an extremely poor GPS reception and also the combination antenna requires additional diplexer and adds a loss in the RF route Linear and Patch GPS Antenna Using this type of antenna introduces at least 3 dB of loss if compared to a circularly polarized CP antenna Having a spherical gain response instead of a hemispherical gain response could aggravate the multipath behaviour amp create poor position accuracy LNA and Front End Design Considerations LNA gain must be between 12 dB and 26 dB assumes a patch antenna This assumes the patch used has gt 3 dBic of gain Linear antenna implementation must consider a minimum of 14 5 dB of LNA gain Excessive LNA gain gt 27 dB can introduce jamming spurs degrade 3IP and saturate the receiver The supply voltage most accept the range between 3 4 to 4 2 V DC In highly integrated environments rich with potentia
15. equipotential to the GE863 ground pins Furthermore if the device is developed for the US market and or Canada market it must comply to the FCC and or IC approval requirements This device is to be used only for mobile and fixed application The antenna s used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons and must not be co located or operating in conjunction with any other antenna or transmitter End Users must be provided with transmitter operation POB JE Telit GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 conditions for satisfying RF exposure compliance OEM integrators must ensure that the end user has no manual instructions to remove or install the GE863 module Antennas used for this OEM module must not exceed 3dBi gain for mobile and fixed operating configurations 5 2 GSM Antenna PCB Line Guidelines e Ensure that the antenna line impedance is 50 ohm e Keep the antenna line on the PCB as short as possible since the antenna line loss must be less than 0 3 dB e Antenna line must have uniform characteristics constant cross section avoid meanders and abrupt curves e Keep if possible one layer of the PCB used only for the Ground plane e Surround on the sides over and under the antenna line on PCB with Ground avoid having other signal tracks facing directly the antenna line track e The ground around the antenna line on
16. for evaluation purposes but not on production devices Telit GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 NOTE AL In order to be able to do in circuit reprogramming of the GE863 firmware the serial port on the Telit GE863 must be available for translation into RS232 and either it is controlling device must be placed into tristate disconnected or as a gateway for the serial data when module reprogramming occurs Only RXD TXD GND and the On off module turn on pad are required to the reprogramming of the module the other lines are unused All applicators must include in their design a way reprogramming the GE863 An example of level translation circuitry of this kind is 3V0 X7R sov C205 100nF 0603 201 X7R C206 00nF 100nF X7R 0603 Cl DN S ES cl O ua er e E e WEE NSx gt gt o J 1 4 O R5 C2 vV lo U201 GD MAX3237EAI SSOP 28 XD TIN TIOUT OD RS232 1 4C DCD T2IN T20UT oS Dp RS232 1 4 RING T3IN T30UT OH gt BING RS232 1 40 DSR T4IN T4OUT CO RS232 1 4 cTs T5IN TSOUT o2 en RS232 1 4C RIOUTB RTS RIOUT RIIN gs RS232 1 4D DIR ROOUT RAN lt pre _RS232 R3IN Or RS23 RS232 LEVEL TRSANSLATOR Reproduction forbidden without Telit Communications S p A s written authorization All Rights Reserved Page 45 of 81 Tel it GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 The R
17. high current return paths in the ground plane EMA Telit GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 are not overlapped to any noise sensitive circuitry as the microphone amplifier buffer or earphone amplifier e The power supply input cables must be kept separate from noise sensitive lines such as microphone earphone cables 4 5 4 Parameters for ATEX Application In order to integrate the Telit s GE863 module into an ATEX application the appropriate reference standard IEC EN xx and integrations must be followed Below are listed parameters and useful information to integrate the module in your application GE863 QUAD amp GE 863 PY e Total capacity 78 394 uF e Total inductance 10 163 YH GE863 GPS e Total capacity 83 167 UF e Total inductance 10 264 yH No voltage upper than supply voltage is present in the module No step up converters are present in the module In abnormal conditions the maximum RF output power is up 34 dBm max for few seconds For this particular application we recommend the customer to involve TTSC Telit Technical Support Center in the design phase of the application TT _ D Reproduction forbidden without Telit Communications S p A s written authorization All Rights Reserved Page 32 of 81 Ke 9 1 e Reproduction forbidden without Telit Communications S p A s written authorization All Rights Reserved Page 33 of 81 Tel
18. no voltage drops occur when the 2A current peaks are absorbed Note that this is not made especially in order to save power but to avoid the voltage drops on the power line at the current peaks frequency of 216 Hz that the 216 Hz reflects on all the components connected to that supply introducing the noise floor at the burst base frequency For this reason while a voltage drop of 300 400 mV may be acceptable from the power loss point of view the same voltage drop may not be acceptable from the noise point of view If your application does not have audio interface but only uses the data feature of the Telit GE863 then this noise is not so disturbing and the power supply layout design can be more forgiving e The PCB traces to the GE863 and the Bypass capacitor must be wide enough to ensure no significant voltage drops to occur when the 2A current peaks are absorbed This is for the same reason as previous point Try to keep this trace as short as possible e The PCB traces connecting the Switching output to the inductor and the switching diode must be kept as short as possible by placing the inductor and the diode very close to the power switching IC only for switching power supply This is done in order to reduce the radiated field noise at the switching frequency 100 500 kHz usually e The use of a good common ground plane is suggested e The placement of the power supply on the board must be done in such a way to guarantee that the
19. not need to be changed NOTE In this application the battery charger input current must be limited to less than 400mA This can be done by using a current limited wall adapter as the power source NOTE When starting the charger from Module powered off the startup is in CFUN4 to activate the normal mode a command AT CFUN 1 has to be provided This is also possible using the POWER ON There is also the possibility to activate the normal mode using the ON_OFF signal In this case when HW powering off the module with the same line ON_OFF and having the charger still connected the module goes back to CFUN4 NOTE It is important having a 100yF Capacitor to VBAT in order to avoid instability of the charger circuit if the battery is accidentally disconnected during the charging activity 4 5 2 L F L F Telit GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 Thermal Design Guidelines The thermal design for the power supply heat sink must be done with the following specifications e average current consumption during transmission PWR level max 500mA e average current consumption during transmission PWR level min 100mA e average current during Power Saving AT CFUN 5 4mA e average current during idle Power Saving disabled 24mA For GE863 GPS only e average GPS section consumption during Power Saving 1mA e average GPS section consumption during Tracking Power Saving disable
20. of disturbing the GSM network or external devices or having impact on the security cannot be avoided Should there be any doubt please refer to the technical documentation and the regulations in force Every module has to be equipped with a proper antenna with specific characteristics The antenna has to be installed with care in order to avoid any interference with other electronic devices and has to be installed with the guarantee of a minimum 20 cm distance from the body In case these requirements cannot be satisfied the system integrator has to assess the final product against the SAR regulation EN 50360 The European Community provides some Directives for the electronic equipments introduced on the market All the relevant information are available on the European Community website http europa eu int comm enterprise rtte dir99 5 htm The text of the Directive 99 05 regarding telecommunication equipments is available while the applicable Directives Low Voltage and EMC are available at http europa eu int comm enterprise rtte dir99 5 htm Telit GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 15 Document Change Log Revision Date Changes ISSUE 0 10 06 08 First release ISSUE 1 03 02 09 updated P N List 4 Updated turn on turn off and reset procedure Added OFF current Updated operating voltage Added ATEX parameters 8 Updated IO Levels Table ISSUE 2 25 03 09 Added new disclaimer Updated
21. of the supply are Operating Range VAUX1 power supply GE863 GPS Min Typical Max Output voltage 2 75V 2 85V 2 95V Output current 50mA Output bypass capacitor 2 2UF inside the module Operating Range VAUX1 power supply GE863 QUAD PY SIM Min Typical Max Output voltage 2 75V 2 85V 2 95V Output current 100mA Output bypass capacitor 2 2UF inside the module Telit GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 10 PPS GPS Output GE863 GPS only 10 1 Description The Time Mark output 1PPS provides a one pulse per second signal to the user specific application The 1PPS pulse is available at any time as soon as a fix is done This signal is a positive logic CMOS level output pulse that transitions from logic low condition to logic high at a 1 Hz rate 10 2 Pulse Characteristics The signal is available on BGA Ball 75 on GE863 GPS and on pin 26 of PL104 on EVK2 Adapter board CS1151 Type Output CMOS 2 8V Duration Typically 1us Pull up down Internal 100Kohm Pull down 1 il 5 ps 1 00 Y F D STOPPED NOTE The signal is available only when the receiver provides a valid Navigation solution A 2 gt e e P Reproduction forbidden without Telit Communications S p A s written authorization All Rights Reserved Page 64 of 81 11 11 1 11 1 1 11 1 2 L F Telit GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 DAC and ADC
22. power ON or 47KQ Pull up to OFF toggle command VBATT 47 RESET Reset input 48 GND Ground Power 49 ANTENNA O GSM Antenna output 50 ohm RF 50 GND Ground Power 51 GPIO7 I O GPIO7 BUZZER output CMOS 2 8V BUZZER 52 PWRMON O Power ON Monitor CMOS 2 8V 53 GPIO5 1 0 GPIO5 RF TX_ON signalling output CMOS 2 8V RFTXMON 54 GPIO6 1 0 GPIO6 ALARM output CMOS 2 8V ALARM 55 GPIO3 1 0 GPIO3 47KQ CMOS 2 8V 56 GND Ground Power 57 RESERVED RESERVED 58 CLK 1 0 Python Debug CLK 1 CMOS 2 8V 59 GPIO17 I O GPIO CMOS 2 8V EH Reproduction forbidden without Telit Communications S p A s written authorization All Rights Rese ES lh BER Page 10 of 81 BGA Ball 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 Signal GPIO14 MRST RESERVED DAC_OUT GPIO16 RESERVED MTSR GND TX_GPS GND RESERVED GPIO15 GND RX_GPS RESERVED PPS GPIO18 GND RX_GPS BI N GND TN GPS BI N RESERVED GND GPS_ANT GND_GPS Note 1 Available only on GE863 GPS in case of GE863 QUAD PY SIM it has to be considered RESERVED Telit GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 Function ert de Type GPIO Python Debug MRST 1 RESERVED DAC out GPIO CMOS 2 8V RESERVED Python Debug MTSR 1 Ground Power GPS serial Port TX 1 Ground Power RESERVED GPIO Ground Power GPS serial Port RX 1 RESERVED 1 Pulse per Second signa
23. power supply is not suited because of the low drop out requirements e When using a linear regulator a proper heat sink must be provided in order to dissipate the power generated e A Bypass low ESR capacitor of adequate capacity must be provided in order to cut the current absorption peaks close to the GE863 a 100uF tantalum capacitor is usually suited e Make sure the low ESR capacitor on the power supply output usually a tantalum one is rated at least 10V e A protection diode must be inserted close to the power input in order to save the GE863 from power polarity inversion 5 WH er y ES Em Reproduction forbidden without Telit Communications S p A s written authorization All Rights Reserved Page 24 of 81 Telit GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 An example of linear regulator with 5V input is 5 input linear regulator i 1 I i I i I d I 1 I d I d I I I 1 I 1 d 3 BV l UZDI OUT f LTI528CO gt 1 1 5y INPUT Jup k ade Jan oo 1 sHINt 1 peru i enay SE Sata sence Ca pete SI 1 1 END K ch i a EN 5 E i 1 OPO CONTE Lee aeaa 1 GeO sha 1 i 1 BAD EAD EMD 1 GERE i f an 1 f G i f usos A i i ee i eo 1 EE 4 5 1 2 12V Input Source Power Supply Design Guidelines e The desired output for the power supply is 3 8V due to the big
24. section DAC Converter Description The GE863 module provides a Digital to Analog Converter The signal named DAC_OUT is available on BGA Ball 63 of the GE863 module and on pin 17 of PL104 on EVK2 Board CS1151 The on board DAC is a 10 bit converter able to generate an analogue value based on a specific input in the range from 0 up to 1023 However an external low pass filter is necessary Min Max Units Voltage range filtered 0 2 6 Volt Range 0 1023 Steps The precision is 10 bits so if we consider that the maximum voltage is 2V the integrated voltage could be calculated with the following formula Integrated output voltage 2 value 1023 DAC_OUT line must be integrated for example with a low band pass filter in order to obtain an analog voltage Enabling DAC An AT command is available to use the DAC function The command is AT DAC lt enable gt lt value gt lt value gt scale factor of the integrated output voltage 0 1023 10 bit precision it must be present if lt enable gt 1 Refer to SW User Guide or to AT Commands Reference Guide for the full description of this function NOTE The DAC frequency is selected internally D A converter must not be used during POWERSAVING Reproduction forbidden without Telit Communications S p A s written authorization All Rights Reserved Page 65 of 81 11 1 3 11 2 11 2 1 11 2 2 Telit GE863 Family Hardware Use
25. 12 2 Modules with single label orientation on the tray 4 Added clarification on Turn ON Turn OFF pulse duration LB d Reproduction forbidden without Telit Communications S p A s written authorization All Rights Reserved Page 81 of 81
26. 2 0 AT CFUN 5 10 0 RX mode 1 slot in downlink 53 0 2 slot in downlink 65 0 3 slot in downlink 78 0 4 slot in downlink 91 0 GSM TX and RX mode GPS ON Min power level 135 0 Max power level 254 0 commands module wakes up with an unsolicited code call or SMS or rising RTS line CFUN 5 full functionality with power saving module registered on the network can receive incoming calls and SMS Stand by mode no call in progress GPS ON Stand by mode no call in progress GPS consumption reduced maintaining the NMEA sentences Stand by mode no call in progress GPS performs a fix and then it switches off for the defined period GSM Receiving data mode GSM Sending data mode The values reported are with GPS antenna current consumption 22mA included Reproduction forbidden without Telit Communications S p A s written authorization All Rights Reserved Page 22 of 81 Telit GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 GPRS class 10 TX and RX mode GPS ON Min power level 187 0 Max power level 430 0 GPRS Sending data mode The GSM system is made in a way that the RF transmission is not continuous else it is packed into bursts at a base frequency of about 216 Hz and the relative current peaks can be as high as about 2A Therefore the power supply has to be designed in order to withstand these current peaks without big voltage drops this means that both the electrical design and the board la
27. 6 of 81 L F Telit GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 Overview The aim of this document is the description of some hardware solutions useful for developing a product with the Telit GE863 GPS QUAD PY SIM modules In this document all the basic functions of a mobile phone is taken into account for each one of them a proper hardware solution is suggested and eventually the wrong solutions and common errors to be avoided will be evidenced Obviously this document cannot embrace the whole hardware solutions and products that may be designed The wrong solutions to be avoided must be considered as mandatory while the suggested hardware configurations must not be considered mandatory instead the information given must be used as a guide and a starting point for properly developing your product with the Telit GE863 GPS QUAD PY SIM modules For further hardware details that may not be explained in this document refer to the Telit GE863 Product Description document where all the hardware information is reported NOTICE EN The integration of the GSM GPRS GE863 GPS QUAD PY SIM cellular module within user application must be done according to the design rules described in this manual IT L integrazione del modulo cellulare GSM GPRS GE863 GPS QUAD PY SIM all interno dell applicazione dell utente dovr rispettare le indicazioni progettuali descritte in questo manuale DE Die Integration des G
28. 83 Rev 2 25 03 09 12 Mounting the GE863 on the Application Board 12 1 General The Telit GE863 modules have been designed in order to be compliant with a standard lead free SMT process 12 1 1 Module Finishing amp Dimensions i E f A pie ER TER 83 amp ee mie i E He ee g 2 7 GEI Surface finishing Ni Au for all test pads Lead free Alloy Surface finishing Sn Ag Cu for all solder pads Reproduction forbidden without Telit Communications S p A s written authorization AU Rights Jm Page 67 of 81 Telit GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 12 1 2 Recommended Foot Print for the Application 31 40 29 40 a ps INHIBIT WIRING d 1 8mm ANT TP 0 E de 84 are not in line with the others Please check the 2 INHIBIT WIRING 19 o e Be 11 6 Ji 12 33 13 Y 14 J 15 30 16 59 S N E 7 18 19 20 2 2 23 24 25 W 28 lect E 00 2 00 ms Reproduction forbidden without Telit Communications S p A s written authorization All Rights Reserved Page 68 of 81 Telit GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 12 1 3 Suggested Inhibit Area In order to easily rework the GE863 it is suggested to consider on the application of a 1 5mm Inhibit area around the module 1 5mm 1 5mm Top View It is also suggested as common rule for an SMT component to avoid hav
29. 863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 Safety Recommendations Read Crefully Be sure about that the use of this product is allowed in the country and in the environment required The use of this product may be dangerous and has to be avoided in the following areas e Where it can interfere with other electronic devices in environments such as hospitals airports aircraft etc e Where there is a risk of explosion such as gasoline stations oil refineries etc It is the responsibility of the user to keep to country regulations and the specific environment regulation Do not disassemble the product any mark of tampering will compromise the warranty validity We recommend to follow the instructions of the hardware user guides for a correct wiring of the product The product has to be supplied with a stabilized voltage source and the wiring has to be conforming to the security and fire prevention regulations The product has to be handled with care avoiding any contact with the pins because electrostatic discharges may damage the product itself Same cautions have to be taken for the SIM checking carefully the instruction for its use Do not insert or remove the SIM when the product is in power saving mode The system integrator is responsible for the functioning of the final product therefore care has to be taken to the external components of the module as well as to any project or installation issue The risk
30. C second max Time maintained above Temperature TL 217 C Time tL 60 150 seconds Peak Temperature Tp 245 0 5 C Time within 5 C of actual Peak 10 30 seconds Hir T sS gt y e A d EA SW Tale r m Reproduction forbidden without Telit Communications S p A s written authorization All Rights Reserved Page 73 of 81 Telit GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 Temperature tp Ramp down Rate 6 C second max Time 25 C to Peak Temperature 8 minutes max Note All temperatures refer to topside of the package measured on the package body surface Note GE863 module can accept only one reflow process _ Reproduction forbidden without Telit Communications S p A s written authorization All Rights emm Page 74 of 81 12 2 Telit GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 Packing System According to SMT processes for picking amp placing movement requirements Telit GE863 modules are packaged on trays Each tray contains 20 pieces with the following dimensions Scritta in buszoriliero Prof 0 3 mm 6 2 170 0 3 critte in bossorilinvo prof 0 3 mm 0 2 Section A A Note that trays can withstand a maximum temperature of 65 C Tel it GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 Modules orientation on tray Not rounded corner of module s pr
31. Communications S p A s written authorization All Rights Reserved Page 51 of 81 Telit GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 Line Coupling AC Line Type Balanced Coupling capacitor 2 100nF Differential input resistance 50kQ Differential input voltage lt 65mV pp 23MVims Microphone nominal sensitivity 45 dBVims Pa Analog gain suggested 10dB Echo canceller type Car kit hands free Srel WARNING AC means that the signal from the microphone has to be connected to input lines of the module by a CAPACITOR Value must be 2 100nF By not respecting this constraint the input stage will be damaged 7 2 Output Lines Speaker 7 2 1 Short Description The Telit GE863 provides two audio paths in the receive section Only one of the two paths can be active at a time selectable by AXE hardware line or by AT command You must keep in mind the different audio characteristics of the receive blocks when designing e the EAR_MT lines EPN1 and EPP1 are the Differential Line Out Drivers they can drive an external amplifier or directly a 16 Q earpiece at 12dBFS e the EAR_HF lines EPPA1_2 and EPPA2 are the Fully Differential Power Buffers they can directly drive a 16Q speaker in differential balanced or single ended unbalanced operation mode FS acronym of Full Scale It is equal to OdB the maximum Hardware Analog Receive Gain of BaseBand Chip Both receiver outputs are B
32. E863 GPS QUAD PY SIM GSM GPRS Mobilfunk Moduls in ein Ger t mu gem der in diesem Dokument beschriebenen Kunstruktionsregeln erfolgen SL Integracija GSM GPRS GE863 GPS QUAD PY SIM modula v uporabniski aplikaciji bo morala upostevati projektna navodila opisana v tem piro niku SP La utilizaci n del modulo GSM GPRS GE863 GPS QUAD PY SIM debe ser conforme a los usos para los cuales ha sido dese ado descritos en este manual del usuario FR L int gration du module cellulaire GSM GPRS GE863 GPS QUAD PY SIM dans l application de Putilisateur sera faite selon les r gles de conception d crites dans ce manuel HE svn DNAT 90 PSNR PIN youd Me NENT MNI N8 DY UP ANO WET ayer py SE863 GPS QUAD PY SIM The information presented in this document is believed to be accurate and reliable However no responsibility is assumed by Telit Communications S p A for its use nor any infringement of patents or other rights of third parties which may result from its use No license is granted by implication or otherwise under any patent rights of Telit Communications S p A other than for circuitry embodied in Telit products This document is subject to change without notice Tel it GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 2 GE863 Mechanical Dimensions The Telit GE863 module s overall dimensions are Length 41 4 mm Width 31 4 mm Thickness 3 6 Mm DETAIL A 31 4 0 1 EE DETAIL
33. Ei f 3 as pe Reproduction forbidden without Telit Communications S p A s written authorization All Rights Reserved Page 54 of 81 Telit GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 Input pads can only be read and report the digital value high or low present on the pad at the read time output pads can only be written or queried and set the value of the pad output an alternate function pad is internally controlled by the GE863 firmware and acts depending on the function implemented Not all GPIO pads support all these three modes e GPIO1 GPIO3 GPIO8 to GPIO18 support both input and output mode but not Alternate function e GPIO2 supports all three modes and can be input output Jamming Detect Output Alternate function e GPIO4 supports all three modes and can be input output RF Transmission Control Alternate function e GPIO5 supports all three modes and can be input output RFTX monitor output Alternate function e GPIO6 supports all three modes and can be input output alarm output Alternate function e GPIO7 supports all three modes and can be input output buzzer output Alternate function All GPIO pads are 2 8V CMOS signals and their interface levels are the same specified in the paragraph 6 Figure 01 chil ON OFF 2sec ch2 GPIO 06 bis Ganan Aan RAAME REARS ne DAADE DEADE MERAS eee DAR f MTB50 0ms 1 00dy chl4 GE863 GPS C
34. Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 Contents T OVERVIEW E 7 2 GE863 MECHANICAL DIMENSIONS sisssssessscccssscasccsdssosecesscccteseasccesnscesscosecasecdacedesedesssenscceccescesssesuecssenasscsesssncesee 8 3 E863 MODULE CONNECTIONS sicsssssiscsccssesscsscssesssevessccsscsissssecessssessossessessassonasssansesssseseassassescedessscaseesesssssecessesss 9 3 1 EI LE e BR EE 9 32 A O N 12 4 HARDWARE COMMANDS wississccsscsscssissssccosevsessossecesesvsscoesevescescebacsesciossecessossesceseesuscesecsssssdssdnecesessassodensneseiuscoesss 13 4 1 TURNING ON THE GESO3 iesiessiscuscesctsssiadeso slestcenbusscbeviocsaesbebsoadectecsueabobasiebste Cadvsuseeicoctagspoveustsncs so debscensasscorsernetne 13 4 2 TURNING OFF THE EE E dadas 16 4 2 1 Hardware Aud dE a Eege deet SE SEENEN 16 4 2 2 Hardware Unconditional Shutdown for GES63 GPS on 17 4 2 3 Hardware Unconditional Reboot GE863 QUAD PY SIM onbe 20 4 3 POWER SUPPLY adi 22 4 4 POWER SUPPLY RGOUIREMENTS 22 4 5 GENERAL DESIGN RULES ina 24 4 5 1 Electrical Design Guidelines att t 24 4 5 2 Thermal Design Guidelines sinisiipien ia aa eisa seniai eer iE aa 30 dde Power Supply PCB Layout Guidelines 31 4 5 4 Parameters for ATEX Application iiisge toisiin iiei niie iieii ea ia iE 32 A 33 5 1 GSM ANTENNA REQUIREMENTS sssesseesesseseseeeesseseseeeertsssreretrenseristtrtssesetrrtstssrttte ts tsserroe rn esresners essensen es essere nee 33 dize GSM ANTENNA
35. H2 1 00 kescht Reproduction forbidden without Telit Communications S p A s written authorization All Rights e Page 55 of 81 Telit GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 8 1 GPIO Logic Levels Where not specifically stated all the interface circuits work at 2 8V CMOS logic levels The following table shows the logic level specifications used in the GE863 interface circuits Absolute Maximum Ratings Not Functional Parameter Min Max Input level on any 0 3V 3 6V digital pin when on Input voltage on 0 3V 3 0 V analog pins when on Operating Range Interface Levels 2 8V CMOS Level Min Max Input high level 2 1V 3 3V Input low level OV 0 5V Output high level 2 2V 3 0V Output low level OV 0 35V For 1 8V signals Operating Range Interface Levels 1 8V CMOS Level Min Max Input high level 1 6V 2 2V Input low level OV 0 4V Output high level 1 65V 2 2V Output low level OV 0 35V 8 2 Using a GPIO Pad as Input The GPIO pads when used as inputs can be connected to a digital output of another device and report its status provided this device has interface levels compatible with the 2 8V CMOS levels of the GPIO If the digital output of the device were to be connected with the GPIO input pad had interface levels different from the 2 8V CMOS then it could be buffered with an open collector transistor with a 47K pull up to 2 8V i d a SS gt A i i ie i E Z 4 l
36. S232 serial port lines are usually connected to a DB9 connector with the following layout DCD Dean DSR RS232 gt ATS_AS232 lt CTS RS232 0 gt DTR AS232 lt ms Reproduction forbidden without Telit Communications S p A s written authorization All Rights Reserved Page 46 of 81 Telit GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 5V UART Level Translation If the OEM application uses a microcontroller with a serial port UART that works at a voltage different from 2 8 3V then a circuitry has to be provided to adapt the different levels of the two set of signals As for the RS232 translation there are a multitude of single chip translators For example a possible translator circuit for a 5V TRANSMITTER RECEIVER can be TOW SAP K TXDEW ui Cen ay TO TELIT TO CEN HARDWARE Aer te Sy MODULE DND py HOH 3 DN TOEFSZ074FE fT GMO TIP This logic IC for the level translator and 2 8V pull ups not the 5V one can be powered directly from VAUX line of the GE863 Note that the TC7SZO7AE has open drain output therefore the resistor R2 is mandatory NOTE The UART input line TXD rx_uart of the GE863 is NOT internally pulled up with a resistor so there may be the need to place an external 47KO pull up resistor Either the DTR dtr_uart or RTS rts_uart input lines are not pulled up internally so an external pull up resistor of 47KQ may
37. SIM module is compliant with the following standards e GSM Radio Spectrum Standard EN 301 511 and 3GPP 51 010 1 e EMC Electromagnetic Compatibility Standards EN 301 489 1 and EN 301 489 7 e LVD Low Voltage Directive Standards EN 60 950 In this document and the Hardware User Guide Software User Guide all the information you may need for developing a product meeting the R amp TTE Directive is included The GE863 GPS PY QUAD SIM module is to conform with the following US Directives e Use of RF Spectrum Standards FCC 47 Part 24 GSM 1900 e EMC Electromagnetic Compatibility Standards FCC47 Part 15 To meet the FCC s RF exposure rules and regulations e The system antenna s used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons and must not be co located or operating in conjunction with any other antenna or transmitter Telit GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 e The system antenna s used for this module must not exceed 3 dBi for mobile and fixed or mobile operating configurations e Users and installers must be provided with antenna installation instructions and transmitter operating conditions for satisfying RF exposure compliance ER MS p Weg y d 2 a l _ a s Reproduction forbidden without Telit Communications S p A s written authorization All Rights Reserved Page 79 of 81 14 Telit GE
38. T LEVEL TRANSLATION occcccconcncncnnncnnnnnnnnnononononononononononononononononononono trer rtr rtr r rer nono no nononononononononononenononos 47 Te AUDIO SECTION OVERVIEW oosssssessssssssccscassssssssocssssvsasscssssscssceaesssavsd esseceasaseaesca sess caaesesssaseasesseassasaaseecssssaseaseass 49 _ Reproduction forbidden without Telit Communications S p A s written authorization All Rights Reserved Page 4 of 81 Telit GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 7 1 INPUT LINES MICROPHONE asii 51 7 1 1 Short Description ssis seia aniar ieina dsn iesi ie aieri piorar ae E EEE ea ENTE ERNES 5I Vie Input Lines Characiens sreski eiras sieve need ouanes Vented aE aa EAE a dupes EEEE 5I 7 2 OUTPUT LINESASPEARE Ri EEr e O E 52 7 2 1 Short e gert ease eege Ee eise oleawbedsvesiceDon eoeddebustesedeisanetedauedSeiieaeevoaten 52 12 2 Output Lines CHATACICTISHICS sx siasansussenes censiossatnnie satisebeteuve di aesa dae aiii 53 8 GENERAL PURPOSE W O isicisssssisscssnscesassesttcesonsscsassevevsneseseccssenscvsnsessncsesessnesssesessensctsnssevecsessed steaseesessnesssceeesenvevensees 54 8 1 GPIO LOGIC LEVELS ci EEE E AERE a e Ea 56 8 2 WSING A GPIO PADAS INPUT a eeh Eed 56 8 3 USINGA GPIO PADAS A ANN 57 8 4 USING THE RF TRANSMISSION CONTROL GPIO4 cccccccesssscecsseecesseececeeaeeecseaaeeeceneeeceesaeeecseaaecesseseecesseeeeeneaaes 57 8 5 USING THE RFTXMON OUTPUT OPO 57 8 6 USING THE ALARM OUTPUT OGbP
39. Teli wireless solutions GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 H Bag GA x a uv g naa MAN o Making machines talk Telit GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 This document is relating to the following products GSM GPRS GE863 GPS 3990250690 GE863 GE863GPS The suffix depends on the module HW SW configuration Please contact your Telit representative for details GSM GPRS GE863 QUAD 3990250662 GE863 QUAD GE863QUD GE863 PY 3990250661 GE863 PY GE863PYT The suffix depends on the module HW SW configuration Please contact your Telit representative for details GE863 SIM NMO dependant For details contact Telit Technical Support Note This document substitutes the following specifications e 1vv0300715 GE863 QUAD PY Hardware User Guide e 1vv0300714 GE863 GPS Hardware User Guide Reproduction forbidden without Telit Communications S p A s written authorization All Rights Reserved Page 2 of 81 Telit GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 Disclaimer The information contained in this document is the proprietary information of Telit Communications S p A and its affiliates TELIT The contents are confidential and any disclosure to persons other than the officers employees agents or subcontractors of the owner or licensee of this docu
40. ad Lef se i f e Reproduction forbidden without Telit Communications S p A s written authorization All Rights Reserved Page 56 of 81 8 3 8 4 8 5 8 6 L F Telit GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 Using a GPIO Pad as Output The GPIO pads when used as outputs can drive 2 8V CMOS digital devices or compatible hardware When set as outputs the pads have a push pull output and therefore the pull up resistor may be omitted Using the RF Transmission Control GPIO4 The GPIO4 pin when configured as RF Transmission Control Input permits to disable the Transmitter when the GPIO is set to Low by the application Using the RFTXMON Output GPIO5 The GPIO5 pin when configured as RFTXMON Output is controlled by the GE863 module and rises when the transmitter is active and fall after the transmitter activity is completed For example if a call is started the line will be HIGH during all the conversation and it will be again LOW after hanged up The line rises up 300ms before first TX burst and becomes LOW again from 500ms to 1sec after last TX burst Using the Alarm Output GPIO6 The GPIO6 pad when configured as Alarm Output is controlled by the GE863 module and will rise when the alarm starts and fall after the issue of a dedicated AT command This output can be used to power up the GE863 controlling microcontroller or application at the alarm time giving you the possibility
41. be required Page 47 of 81 L F Telit GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 A power source of the internal interface voltage corresponding to the 2 8VCMOS high level is available at the VAUX pin A maximum of 9 resistors of 47 KQ pull up can be connected to the VAUX pin provided no other devices are connected to it and the pulled up lines are GE863 input lines connected to open collector outputs in order to avoid latch up problems on the GE863 Care must be taken to avoid latch up on the GE863 and the use of this output line to power electronic devices must be avoided especially for devices that generate spikes and noise such as switching level translators micro controllers failure in any of these conditions can severely compromise the GE863 functionality NOTE The input lines working at 2 8VCMOS can be pulled up with 47KO resistors that can be connected directly to the VAUX line provided they are connected as in this example It is important to consider that the added circuit must have consumption lower than 1mA In case of reprogramming the module the use of the RESET line has to be considered to start the activity correctly The preferable configuration is having an external supply for the buffer Telit GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 7 Audio Section Overview The Base Band Chip of the GE863 Telit Module provides two different audio blo
42. can be active at a time You must keep in mind the different audio characteristics of the transmit blocks when designing The MIC_MT audio path must be used for handset function while the MIC_HF audio path is suited for hands free function car kit TIP AL As the microphone circuitry being more noise sensitive its design and layout must be done with particular care Both microphone paths are balanced and the OEM circuitry must be designed to reduce the common mode noise typically generated on the ground plane However an unbalanced circuitry can be used for particular OEM application needs TIP F Due to the difference in the echo canceller type the Mic MIT audio path is suited for Handset applications Mic_HF audio path is suited for hands free function car kit The Earphone applications must be using the Mic_HF audio path but DISABLING the echo canceller by software AT command If the echo canceller is left active with the Earphone then some echo might be introduced by the echo cancel algorithm 7 1 2 Input Lines Characteristics MG MI 1st Differential Microphone Path Line Coupling AC Line Type Balanced Coupling capacitor 2 100nF Differential input resistance 50kQ Differential input voltage lt 1 03V pp 365MV ms Microphone nominal sensitivity 45 dBVims Pa Analog gain suggested 20dB Echo canceller type Handset RT S f IgA re Reproduction forbidden without Telit
43. cks both in transmit Uplink and in receive Downlink direction MT lines must be used for handset function HF lines is suited for hands free function car kit These two blocks can be activated one at a time selectable by AXE hardware line or by AT command The audio characteristics are equivalent in transmit blocks but are different in the receive ones and this must be kept in mind when designing The Audio Paths are described in the block diagram on next page For a full description on how to design the Audio section on your application please refer to the following document e M2M Telit Modules Audio Application Note code 80000NT10007a kescht Reproduction forbidden without Telit Communications S p A s written authorization All Rights Im Page 49 of 81 Telit GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 audio2 skd EXTERNAL AMPLIFIER Fully Differential Power Buffers Balanced Differential Line Out Drivers GE863 Audio Paths 45dBV Pa A5dBV Pa Reproduction forbidden without Telit Communications S p A s written authorization All Rights Reserved Page 50 of 81 Telit GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 7 1 Input Lines Microphone 7 1 1 Short Description The Telit GE863 provides two audio paths in transmit section Only one of the two paths selectable by AXE hardware line or by AT command
44. compensate the charge leak typical of a Li lon battery It is done by issuing pulses with a fixed time length again few hundreds of ms and a duty cycle around 5 or less This last phase is not implemented in the GE863 internal charging algorithm so once charged battery is left discharging down to a certain threshold It is cycled from full charge to slight discharge even if the battery charger is inserted This guarantees that the remaining charge in the battery is a good percentage and that the battery is not damaged by keeping it always fully charged Li lon rechargeable batteries usually deteriorate when kept fully charged Last but not least in some applications it is highly desired that the charging process restarts when the battery is discharged and its voltage drops below a certain threshold This is typical for the GE863 internal charger As you can see the charging process is not a trivial task to do moreover all these operations must start only if battery temperature is inside charging range usually 5 C 45 C The GE863 GPS measures the temperature of its internal component in order to satisfy this last requirement This not exactly the same as the battery temperature but in common use the two temperatures must not differ too much and the charging temperature range must be guaranteed NOTE For all the threshold voltages inside the GE863 all threshold are fixed in order to maximize Li lon battery performances and do
45. d 60mA NOTE The average consumption during transmissions depends on the power level at which the device is requested to transmit by the network The average current consumption hence varies significantly TIP The thermal design for the Power supply must be made keeping an average consumption at the max transmitting level during calls of 500mA rms plus 60mA rms for GPS in tracking mode Considering the very low current during idle especially if the Power Saving function is enabled it is possible to consider from the thermal point of view that the device absorbs current significantly only during calls If we assume that the device stays in transmission for short periods of time let us say few minutes and then remains for quite a long time in idle let us say one hour then the power supply has always the time to cool down between the calls and the heat sink could be smaller than calculated for 5 010mA maximum RMS current There could even be a simple chip package no heat sink Moreover in average network conditions the device is requested to transmit at a lower power level than the maximum and hence the current consumption will be less than 500mA being usually around 150mA For these reasons the thermal design is rarely a concern and the simple ground plane where the power supply chip is placed can be enough to ensure a good thermal condition and avoid overheating bh my ES Em AN emm
46. difference between the input source and the desired output a linear regulator is not suited and must not be used A switching power supply is preferable because of better efficiency especially with the 2A peak current load represented by the GE863 e When using a switching regulator a 500kHz or more switching frequency regulator is preferable because of its smaller inductor size and its faster transient response This allows the regulator to respond quickly to the current peaks absorption e In any case the frequency and Switching design selection is related to the application to be developed due to the fact the switching frequency could also generate EMC interferences e For car PB battery the input voltage can rise up to 15 8V and this must be kept in mind when choosing components all components in the power supply must withstand this voltage e A Bypass low ESR capacitor of adequate capacity must be provided in order to cut the current absorption peaks a 100uF tantalum capacitor is usually suited e Make sure the low ESR capacitor on the power supply output usually a tantalum one is rated at least 10V e For Car applications a spike protection diode must be inserted close to the power input in order to clean the supply from spikes A A J Se WS Zem Reproduction forbidden without Telit Communications S p A s written authorization All Rights Reserved Page 25 of 81 Telit GE863 Family Hardware User Gu
47. e qqualification and trickle charging e fast charge 1 constant current e final charge constant voltage or pulsed charging e maintenance charge The qualification process consists of a battery voltage measure indicating roughly its charge status If the battery is deeply discharged meaning its voltage is lower than the trickle charging threshold then charging must start slowly possibly with a current limited to the pre charging process The current must be kept very low with respect to the fast charge value During trickle charging the voltage across the battery terminals rises when it reaches the fast charge threshold level the charging process goes into a fast charge phase During the fast charge phase the process proceeds with a current limited for charging this current limit depends on the required time for completing the charge and on battery pack capacity During this phase the voltage across the battery terminals still raises but at a lower rate Once the battery voltage reaches its maximum voltage the process goes into its third state Final charging The voltage measure to change the process status into final charge is very important It must be ensured that the maximum battery voltage is never exceeded otherwise the battery may be damaged and even explode Moreover for constant final chargers the voltage phase final charge must not start before the battery voltage has reached its maximum value otherwise the battery capacit
48. endor Page 58 of 81 8 8 8 8 1 8 8 2 Telit GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 Magnetic Buzzer Concepts Short Description A magnetic Buzzer is a sound generating device with a coil located in the magnetic circuit consisting of a permanent magnet an iron core a high permeable metal disk and a vibrating diaphragm Di fad M t iaphragm agne o l se When a direct current is applied Drawing of the Magnetic Buzzer The disk and diaphragm are attracted to the core by the magnetic field When an oscillating signal is moved through the coil it produces a fluctuating magnetic field which vibrates the diaphragm at a frequency of the drive signal Thus the sound is produced relative to the frequency applied Input Signal Vibration Shape of Resonator Diaphragm movement Frequency Behavior The frequency behavior represents the effectiveness of the reproduction of the applied signals Because performance is related to a square driving waveform whose amplitude varies from OV to Vpp if you modify the waveform e g from square to sinus the frequency response will change Py zen ES Reproduction forbidden without Telit Communications S p A s written authorization All Rights Reserved Page 59 of 81 8 8 3 8 8 4 Telit GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 Power Supply Influence Applying a signal whose am
49. ernally controlled The following GPIO are available on the GE863 Input Default State Ball Signal 1 0 Function Type Output State ON_OFF During Note Current state Reset GPIO01 Configurable CMOS 1uA 34 GPIO1 1 0 GPIO 2 8V IA INPUT 0 GPIO02 Configurable CMOS 1uA Alternate oe Gree vo GPIO 2 8V 1mA INPUT function JDR GPIO03 Configurable CMOS 1uA 55 GPIO3 1 0 GPIO 2 8V IA INPUT 1 1 47K Pull Up 4 7K Pull Up Alternate GPIO04 Configurable CMOS 14A 32 GPIO4 1 0 GPIO 2 EM IMA INPUT 1 1 function RF Transmission Control Alternate cronos Pen E E e 0 function RFTXMON Alternate EM a A E EC function ALARM Alternate sao a El eh WI E 0 function BUZZER GPIO08 Configurable CMOS 1uA 6 GPIO8 1 0 GPIO 2 8V ET INPUT 0 GPIO09 Configurable CMOS 1uA 5 GPIO9 1 0 GPIO 2 8V ET INPUT 0 GPIO10 Configurable CMOS 1uA 4 GPIO10 UO GPIO 2 EM MA INPUT 0 GPIO11 Configurable CMOS 1uA 3 GPIO11 1 0 GPIO 2 8V SE INPUT 1 1 4 7K Pull Up GP1012 Configurable CMOS 1uA 2 GPIO12 I O GPIO ECH IA INPUT 1 1 47K Pull Up GPI0O13 Configurable CMOS 14A 1 GPIO13 I O GPIO 2 EM TAA INPUT 0 GP1014 Configurable CMOS 1uA 60 GPIO14 I O GPIO 2 8V AA INPUT 0 GPIO15 Configurable CMOS 1uA 71 GPIO15 I O GPIO 2 8V AA INPUT 0 GPIO16 Configurable CMOS 1uA 64 GPIO16 UO GPIO 2 EM IMA INPUT 0 GPIO17 Configurable CMOS 14A 59 GPIO17 I O GPIO 2 8V EEN INPUT 0 GPIO18 Configurable CMOS 1uA 76 GPIO18 UO GPIO 2 8V ean INPUT 0 7
50. ge 19 of 81 Telit GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 4 2 3 Hardware Unconditional Reboot GE863 QUAD PY SIM only To unconditionally Reboot the GE863 QUAD PY SIM the pad RESET must be tied low for at least 200 milliseconds and then released The maximum current that can be drained from the ON pad is 0 15 mA A simple circuit to do it is RESET TL PH H Unconditional Reboot impulse emm Bi z7 7 OND NOTE Do not use any pull up resistor on the RESET line nor any totem pole digital output Using pull up resistor may bring to latch up problems on the GE863 QUAD PY SIM power regulator and improper functioning of the module The line RESET must be connected only in open collector configuration TIP Al The unconditional hardware reboot must always be implemented on the boards and the software must use it as an emergency exit procedure IS a cant E A gt PONE gt ff i Lal weg J z i kescht Reproduction forbidden without Telit Communications S p A s written authorization All Rights Reserved Page 20 of 81 Telit GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 In the following flow chart is detailed the proper restart procedure Reset LOW Delay 200ms Reset HIGH For example 1 Let us assume you need to drive the RESET pad with a totem pole output of a 3 5 V microcontroller uP_OUT2 gt RESET
51. ide 1vv0300783 Rev 2 25 03 09 e A protection diode must be inserted close to the power input in order to save the GE863 from power polarity inversion This can be the same diode as for spike protection An example of switching regulator with 12V input is in the below schematic it is split in 2 parts A TO 5 eg SWITCHING a 12V INPUT e g KN zz y N 1 C230 C232 D202 lnF luF EE eed Zen P6SMB30A S R 30A 100V 50V 0805 1210 DO 214hA 17 7 JLZ 5 S S A A e E E h 39v U203 T202 T EE RCR 110D 150 M vm ery e Www seg e D D vec our NC3 NCI i 7 lew sync R210 C235 C236 ene P Se ee ES D203 10 0K 1o00uF ine XR S F STPS2L40U le See lew ov Sov AER COMP 0603 10X16 0305 2 NT e FR B 1210 CONT D rH D PEG ED 9 GD 7 7 7 7 77 177 H GD ED GD GD GD GD e C231 R212 22nF XR sov 3 0603 0603 SC E 00 R207 50v 4 7K 0603 gt 0603 SWITCHING REGULATOR Reproduction forbidden without Telit Communications S p A s written authorization All Rights Reserved Page 26 of 81 Telit GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 4 5 1 3 Battery Source Power Supply Design Guidelines e The desired nominal output for the power supply is 3 8V and the maximum voltage allowed is 4 2V 4 5 V if using SW release 7 03 x00 or newer hence a single 3 7V Li lon cell battery type is sui
52. ily Hardware User Guide 1vv0300783 Rev 2 25 03 09 Placement of microvias not covered by solder resist is not recommended unless the microvia carries the same signal of the pad itself Holes in pad are allowed only for blind holes and not for through holes Recommendations for PCB pad surfaces Finish Layer thickness um Properties Electro less Ni 3 7 Good solder ability protection high Immersion Au 0 05 0 15 shear force values The PCB must be able to resist higher temperatures occurring at the lead free process This issue must be discussed with the PCB supplier Generally the wet ability of tin lead solder paste on the described surface plating is better compared to lead free solder paste 12 1 7 Solder Paste Lead free Solder paste Sn Ag Cu _ _ Reproduction forbidden without Telit Communications S p A s written authorization All Rights Reserved Page 72 of 81 elit GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 12 1 8 GE863 Solder Reflow jo Critical Zone T to Tp 4 r ARE AIBR ARABIA amanan iaiaaeaia DALIA ABLA AAA AE Temperature gt Preheat 25 t 25 C to Peak Time gt IPC 020b 5 1 Profile Feature Pb Free Assembly Average ramp up rate T to Tp 3 C second max Preheat Temperature Min Tsmin 150 C Temperature Max Tsmax 200 C Time min to max ts 60 180 seconds Tsmax to TL Ramp up Rate 3
53. ing a mechanical part of the application in direct contact with the module ME Sy La rm kescht Reproduction forbidden without Telit Communications S p A s written authorization All Rights Reserved Page 69 of 81 Telit GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 12 1 4 Debug of the GE863 in Production To test and debug mounting of the GE863 we strongly recommend to foresee test pads on the host PCB in order to check the connection between the GE863 itself and the application and to test the performance of the module connecting it with an external computer Depending by the customer application these pads include but are not limited to the following signals e TXD e RXD e ON OFF e RESET e GND e VBATT e TX_TRACE e RX_TRACE e PWRMON 12 1 5 Stencil Stencil s apertures layout can be the same of the recommended footprint 1 1 we suggest a thickness of stencil foil gt 120um kescht Reproduction forbidden without Telit Communications S p A s written authorization All Rights e Page 70 of 81 wireless solutions GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 12 1 6 PCB Pad Design Non solder mask defined NSMD type is recommended for the solder pads on the PCB Recommendations for PCB Pad Dimensions Ball pitch mm 2 Solder resist opening diameter A mm 1 150 Metal pad diameter B mm 1 0 05 wireless solutions GE863 Fam
54. inside the bag indicates 10 RH or more kescht Reproduction forbidden without Telit Communications S p A s written authorization All Rights Reserved Page 77 of 81 13 Telit GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 Conformity Assessment Issues The GE863 GPS PY QUAD SIM modules are assessed to be conform to the R amp TTE Directive as stand alone products If the module is installed in conformance with Dai Telecom installation instructions it requires no further evaluation under Article 3 2 of the R amp TTE Directive and does not require further involvement of a R amp TTE Directive Notified Body for the final product In all other cases or if the manufacturer of the final product is in doubt the equipment integrating radio module must be assessed against Article 3 2 of the R amp TTE Directive In all cases assessment of the final product must be made against the Essential requirements of the R amp TTE Directive Articles 3 1 a and b safety and EMC respectively and any relevant Article 3 3 requirements The GE863 GPS PY QUAD SIM module is conform with the following European Union Directives e R amp TTE directive 1999 5 EC Radio Equipment amp Telecommunications Terminal Equipments e low voltage directive 73 23 EEC and product safety e directive 89 336 EEC for conformity for EMC In order to satisfy the essential requisite of the R amp TTE 99 5 EC directive the GE863 GPS PY QUAD
55. inted circuit board indicates pin 1 corner The modules in the tray are oriented with no rounded corner toward right see A The tray is oriented toward left see B OOLOAAL DCD Vay e A ooo demm Reproduction forbidden without Telit Communications S p A s written authorization All Rights Reserved Page 76 of 81 Telit GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 12 2 1 Moisture Sensibility The level of moisture sensibility of Telit GE863 modules is 3 according with standard IPC JEDEC J STD 020 take care of all the relative requirements for using this kind of components Moreover the customer has to take care of the following conditions a The shelf life of GE863 inside of the dry bag must be 12 months from the bag seal date when stored in a non condensing atmospheric environment of lt 40 C 90 RH b Environmental condition during the production lt 30 C 60 RH according to IPC JEDEC J STD 033A paragraph 5 c The maximum time between the opening of the sealed bag and the reflow process must be 168 hours if condition b IPC JEDEC J STD 033A paragraph 5 2 is respected d Baking is required if conditions b or c are not respected e Baking is required if the humidity indicator
56. it GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 Antenna The antenna connection and board layout design are the most important parts in the full product design and they strongly reflect on the overall product performances Read carefully and follow the requirements and the guidelines for a proper design GSM Antenna Requirements As suggested on the Product Description the antenna and antenna line on PCB for a Telit GE863 device must fulfill the following requirements Antenna Requirements Frequency range Depending by frequency band s provided by the network operator the customer must use the most suitable antenna for that those band s Bandwidth 70 MHz in GSM850 80 MHz in GSM900 170 MHz in DCS amp 140 MHz PCS band Gain Gain lt 3dBi Impedance 50 ohm Input power gt 2 W peak power VSWR absolute lt 10 1 max VSWR lt 2 1 recommended When using the Telit GE863 since there is no antenna connector on the module the antenna must be connected to the GE863 through the PCB with the antenna pad In the case the antenna is not directly developed on the same PCB or directly connected at the antenna pad of the GE863 a PCB line is needed in order to connect with it or with its connector This line of transmission must fulfill the following requirements Antenna Line on PCB Requirements Impedance 50 ohm Max Attenuation 0 3 dB No coupling with other signals allowed Cold End Ground Plane of antenna must be
57. l 1 100kOhm CMOS 2 8V pull down GPIO a Ground Power GPS serial Port RX SIRF BINARY 1 CMOS 2 8V Ground Power GPS serial Port TX SIRF BINARY 1 CMOS 2 8V RESERVED Ground Power GPS ANTENNA 1 GPS_ANTENNA GND 1 Power Telit GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 3 2 PINS Layout TOP VIEW 56 55 54 53 52 51 50 49 48 47 46 45 06006000 6000400 17 18 19 20 21 22 23 24 25 26 27 28 kescht Reproduction forbidden without Telit Communications S p A s written authorization All Rights e Page 12 of 81 L LA Telit GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 Hardware Commands Turning ON the GE863 To turn the GE863 on the pad ON must be tied low for at least 1 second and then released A pulse duration less than 1 second should also start the power on procedure but this is not guaranteed The maximum current that can be drained from the ON pad is 0 1 mA A simple circuit to do it is ON A A i i Q1 Power ON impulse NI R2 Loe e NOTE Do not use any pull up resistor on the ON line it is internally pulled up Using pull up resistor may bring to latch up problems on the GE863 power regulator and improper power on off of the module The line ON must be connected only in open collector configuration In this document all the lines that are inverted hence have active low signals are labeled with a name that ends with a
58. l interference SIRF suggests design implementations with PRE filters The module s GPS input is already provided of a SAW filter 5 5 Telit GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 As suggested on the Product Description the external active antenna for a Telit GE863 GPS device must fulfill the following requirements Antenna Requirements Frequency range 1575 42 MHz GPS L1 Bandwidth 1 023 MHz Gain 1 5 dBi lt Gain lt 4 5 dBi Impedance 50 ohm Amplification Typical 25dB max 27dB Supply voltage Must accept from 3 to 5 V DC Current Typical 20 mA 40 mA max consumption When using the Telit GE863 GPS since there is no antenna connector on the module the antenna must be connected to the GE863 GPS through the PCB with the antenna pad In the case that the antenna is not directly developed on the same PCB hence directly connected at the antenna pad of the GE863 GPS then a PCB line is needed in order to connect with it or with its connector This line of transmission must fulfill the following requirements Antenna Line on PCB Requirements Impedance 50 ohm No coupling with other signals allowed Cold End Ground Plane of antenna must be equipotential to the GE863 GPS ground pins Furthermore if the device is developed for the US and or Canada market it must comply with the FCC and or IC approval requirements This device is to be used only for mobile and fixed application GPS Antenna
59. lOg 57 8 7 USING THE BUZZER OUTPUT ETA RE 58 8 8 MAGNETIC BUZZER CONCEPTS inicias ii ada eiii 59 8 8 1 TR iio iii tias 59 6 8 2 A E EE 59 6 8 3 een TTT 60 8 5 4 Working Current Influence siciicoiicsioiacnaco ici arenaer dida sais E aE a a R aaeei 60 8 9 USING THE TEMPERATURE MONITOR FUNCTION seesesseseesseeeeestteretterstretsseretesteretetessrreessteesesrerteteesstreessreeseeee 61 8 9 1 Short Descriptio eiegiee egieER Eder deene dE a a ai eree a ae a ap eaei 61 8 9 2 Allowed GPIO E 6l 8 10 INDICATION OF NETWORK SERVICE ANAILARILITN 62 9 RTC AND AUXILIARY SUPPLY vvissicisssscssscesontecsassesecsnesssnccesanscvsnssevecsessed cssesesecanscvsnesesancescusessesessetinssdcsessesnseasesce 63 9 1 RIC BYPASS OUT diia datada 63 9 2 VAUX POWER OUTPUT KEE 63 10 PPS GPS OUTPUT GES863 GPS ONLY E 64 HO Vy DESCRIPTION ege EE EA Sheed 64 10 2 PULSE CHARACTERISTICS seess Eege EE 64 11 DAC AND ADC SECTION svesessesssiecsasenssisnosssansssensevsasesoasiessessesnensdevseesesnttesensevsesossessnessssses anvebsnessenssesensenanesssesiee 65 PUT WUDAC CONVERTER dadas 65 ILII t esen PE ine AER debts dhe thssosavesadnevondsess dundee sbi vaseotdendeuepsauseaseasiaes 65 IREL Enablme EE 65 ILL3 L w Pass Filter Examples eirca iE dENEEEEEEESEE ENEE 66 11 2 ADE CONVERTER eicere ener E E deb AE E EEEE E E EE EE 66 LL D221 E 66 11 2 2 Using ADC Converter A O 66 12 MOUNTING THE GE863 ON THE APPLICATION BOARD ssesssescce
60. ment without the prior written consent of Telit is strictly prohibited Telit makes every effort to ensure the quality of the information it makes available Notwithstanding the foregoing Telit does not make any warranty as to the information contained herein and does not accept any liability for any injury loss or damage of any kind incurred by use of or reliance upon the information Telit disclaims any and all responsibility for the application of the devices characterized in this document and notes that the application of the device must comply with the safety standards of the applicable country and where applicable with the relevant wiring rules Telit reserves the right to make modifications additions and deletions to this document due to typographical errors inaccurate information or improvements to programs and or equipment at any time and without notice Such changes will nevertheless be incorporated into new editions of this document Copyright Transmittal reproduction dissemination and or editing of this document as well as utilization of its contents and communication thereof to others without express authorization are prohibited Offenders will be held liable for payment of damages All rights are reserved Copyright Telit Communications SpA 2009 SALL T Reproduction forbidden without Telit Communications S p A s written authorization All Rights Reserved Page 3 of 81 Telit GE863
61. n the network service availability and Call status In the GE863 modules the STAT_LED needs an external transistor to drive an external LED Because of the above the status indicated in the following table is reversed with respect to the pin status LED status Device Status Permanently off Device off Fast blinking Net search Not registered Period 1s Ton 0 5s turning off Slow blinking Registered full service Period 3s Ton 0 3s Permanently on a Call is active VBATT R101 330 reg LY M676 Q251 26 DL101 M676 YELLOW Y OY CL J STAT_LED PA d y i AS Ms gt kescht Reproduction forbidden without Telit Communications S p A s written authorization All Rights e Page 62 of 81 Telit GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 9 RTC and Auxiliary Supply 9 1 RTC Bypass Out The VRTC pin brings out the Real Time Clock supply which is separate from the rest of the digital part allowing only RTC going on when all the other parts of the device are off A backup capacitor can be added to this power output in order to increase the RTC autonomy during power off of the battery NO Devices must be powered from this pin 9 2 VAUX1 Power Output A regulated power supply output is provided in order to supply small devices from the module This output is active when the module is ON and goes OFF when the module is shut down The operating range characteristics
62. plitude is different from that suggested by the manufacturer the performance change following the rule if resonance frequency fo increases amplitude decreases Because resonance frequency depends on acoustic design by lowering the amplitude of the driving signal the response bandwidth tends to become narrow and vice versa Summarizing Vpp t gt fo Vpp gt fot The risk is that the f could easily fall outside of new bandwidth consequently the SPL could be much lower than the expected WARNING It is very important to respect the sense of the applied voltage never apply to the pin a voltage more positive than the pin if this happens the diaphragm vibrates in the opposite direction with a high probability to be expelled from its physical position This damages the device permanently Working Current Influence In the component data sheet you will find the value of MAX CURRENT this represents the maximum average current that can flow at nominal voltage without current limitation In other words it is not the peak current which could be twice or three times higher If driving circuitry does not support these peak values the SPL will never reach the declared level or the oscillations will stop E Cd e y SS E A Reproduction forbidden without Telit Communications S p A s written authorization All Rights Reserved Page 60 of 81 Tel it GE863 Family Hardware User Guide 1vv0300783 Rev 2
63. quires connecting these pins to GPS serial port A PIN NAME NAME PIN 25 TX_TRACE E RX_GPS_BIN 78 26 RX_TRACE lt __ TX GPS BIN 80 6 4 2 GPS Serial Port A SIRF Binary This port is carrying out the GPS navigation data in SIRF BINARY format The default configuration is 57600 bps 8 n 1 It is available on the following pins PIN NAME DESCRIPTION TYPE 78 RX_GPS_BIN GPS RX Data Sirf Binary CMOS 2 8V 80 TX_GPS_BIN GPS TX Data Sirf Binary CMOS 2 8V The typical integration requires connecting these pins to MODEM serial port 2 6 4 3 GPS Serial Port B NMEA This port is carrying out the GPS navigation data in NMEA 0183 format The default configuration is 4800 bps 8 n 1 It is available on the following pins PIN NAME DESCRIPTION TYPE 68 TX_GPS GPS TX Data NMEA CMOS 2 8V 73 RX_GPS GPS RX Data NMEA CMOS 2 8V GPS RX Lines and TX lines may need a dual supply isolation buffer like an FXLP34 to avoid CMOS high states while in POWER SAVING Telit GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 6 5 GE863 QUAD PY SIM Secondary Port 6 5 1 Modem Serial Port 2 Python Debug It is available on the following pins PIN NAME DESCRIPTION TYPE 25 TX_TRACE TX Data CMOS 2 8V 26 RX_TRACE RX Data CMOS 2 8V 6 6 RS232 Level Translation In order to interface the Telit GE863 with a PC COM port or a RS232 EIA TIA 232 application a level translator is required This level transla
64. r Guide 1vv0300783 Rev 2 25 03 09 Low Pass Filter Example o W EE P3 INPUT dac out OUTPUT C1 100nF C2 100nF C3 100nF P2 eg P4 Yond GND GND Zenn GND ADC Converter Description The GE863 GPS module provides one Analog to Digital Converter The input line named ADC_IN1 is available on BGA Ball 23 of the GE863 GPS module and on pin 19 of PL104 on EVK2 Board CS1151 The GE863 QUAD PY SIM modules provide 3 Analog to Digital Converters The input lines are available on ADC_IN1 on BGA Ball 23 of the module and on pin 19 of PL104 on EVK Interface board ADC_IN2 on BGA Ball 74 of the module and on pin 20 of PL104 on EVK Interface board ADC_IN3 on BGA Ball 70 of the module and on pin 21 of PL104 on EVK Interface board The on board A D is 11 bit converter It is able to read a voltage level in the range of 0 2 volts applied on the ADC pin input store and convert it into 11 bit word Min Max Units Input Voltage range 0 2 Volt AD conversion 11 bits Resolution lt 1 mV Using ADC Converter An AT command is available to use the ADC function The command is AT ADC 1 2 and the read value is expressed in mV Refer to SW User Guide or to AT Commands Reference Guide for the full description of this function _ Reproduction forbidden without Telit Communications S p A s written authorization All Rights Reserved Page 66 of 81 Telit GE863 Family Hardware User Guide 1vv03007
65. rocontroller UART 2 8V 3V Universal Asynchronous Receive Transmit e microcontroller UART 5V or other voltages different from 2 8V Depending from the type of serial port on the OEM hardware a level translator circuit may be needed to make the system work The only configuration that does not need a level translation is the 2 8V UART The serial port on the GE863 is a 2 8V UART with all the 7 RS232 signals It differs from the PC RS232 in the signal polarity RS232 is reversed and levels The levels for the GE863 UART are the CMOS levels Absolute Maximum Ratings Not Functional Parameter Min Max Input level on any 0 3V 3 6V digital pad when on Input voltage on 0 3V 3 0 V analog pads when on Operating Range Interface Levels 2 8V CMOS Level Min Max Input high level Vin 2 1V 3 3V Input low level Mu OV 0 5V Output high level Voy 2 2V 3 0V Output low level Vo OV 0 35V Gg q All Rights Reserved Page 41 of 81 RS232 Pin Number 1 Telit GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 The signals of the GE863 serial port are e GE863 Pad Signal Number Name Usage DCD 42 Data Carrier Detect Output from the GE863 that indicates the dcd_ua carrier presence rt RXD 38 Transmit line see Output transmit line of GE863 UART tx_uart Note TXD 37 Receive line see Input receive of the GE863 UART rx_uart Note DTR 39 Data Terminal Input to the GE863 that controls the DTE d
66. seseseossessoeccoeccoecccesocesecsecesesesessseeese 67 PI GENERAL ici 67 12 1 1 Module Finishing Dien stoe 67 12 1 2 Recommended Foot Print for the Application cccccscssssseessessesecnsesecusesecseescesecseesecaceecuaeeeceaeeaeeaesaaeeeenaes 68 12 1 3 Suggested Inhibit Area wee ceccesessesecseescnseesceseescesecseesecaceseesseecessecseesecsaeeesaeesesaeaaseseeaeeaeesesaeesaeeaeeaesnaeeeenaes 69 12 14 Debug of the GE863 in Production 70 12 1 5 EE EE 70 12 1 6 LOLITA AA 71 12 1 7 AS EE 72 12 1 8 GE863 Solder Reflow cccccesccscsscesssseeseeseesecssesecscesecsseecesseeseesecsaeseesseesesaeeaeeseaecaeesecaeesecsaeeeeeaeeaeeaesaaeaeenaes 73 12 2 PACKING SYSTEM _ Reproduction forbidden without Telit Communications S p A s written authorization All Rights Reserved Page 5 of 81 Telit GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 IV TS AER AT AAA E NO 77 13 CONFORMITY ASSESSMENT ISSUES cccccssssssssssssssssssssssesssssssscssssssessssessesssssassssssssessssasessssesesesseresesoes 78 14 SAFETY RECOMMENDATIONS oocococonoocnnnononnonononcnnonononnononcnconononnononcnconononncnoncnronononncnononocnonon cn ronononncn on cn rononoso 80 15 DOCUMENT CHANGE LOG ccsscsssescsssssscscnsssssssssssesssescssssesssssesssssssssesssessesssessssnsscsosesessesssessesssesseseseasors 81 at Reproduction forbidden without Telit Communications S p A s written authorization All Rights Reserved Page
67. ted for supplying the power to the Telit GE863 module The three cells Ni Cd or Ni MH 3 6 V Nom battery types or 4V PB types MUST NOT BE USED DIRECTLY since their maximum voltage can rise over the absolute maximum voltage for the GE863 GPS and damage it NOTE Al Do not use any Ni Cd Ni MH and Pb battery types directly connected with GE863 Their use can lead to overvoltage on the GE863 and damage it USE ONLY Li lon battery types e A Bypass low ESR capacitor of adequate capacity must be provided in order to cut the current absorption peaks A 100uF tantalum capacitor is usually suited e Make sure the low ESR capacitor usually a tantalum one is rated at least 10V e A protection diode must be inserted close to the power input in order to save the GE863 from power polarity inversion Otherwise the battery connector must be done in a way to avoid polarity inversions when connecting the battery e The battery capacity must be at least 500mAh in order to withstand the current peaks of 2A the suggested capacity is from 500mAh to 1000mAh 7 H LA a y y e A E A hig rz d a A is hi Reproduction forbidden without Telit Communications S p A s written authorization All Rights Reserved Page 27 of 81 Telit GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 4 5 1 4 Battery Charge Control Circuitry Design Guidelines The charging process for Li lon Batteries can be divided into 4 phases
68. to program a timely system wake up to achieve some periodic actions and completely turn off either the application or the GE863 during sleep periods dramatically reducing the sleep consumption to few pA In battery powered devices this feature will greatly improve the autonomy of the device NOTE During RESET the line is set to HIGH logic level L F Telit GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 Using the Buzzer Output GPIO7 As Alternate Function the GPIO7 is controlled by the firmware that depends on the function implemented internally This setup always places the GPIO7 pin in OUTPUT direction and the corresponding function must be activated properly by AT SRP command refer to AT commands specification In this case the dummy value for the pin state can also be both 0 or 1 send the command AT GPIO 7 1 2 lt cr gt wait for response OK send the command AT SRP 3 The GPIO7 pin will be set as Alternate Function pin with its dummy logic status set to HIGH value The Alternate function permits your application to easily implement Buzzer feature with some small hardware extension of your application as shown in the next sample figure TR2 V buzzer SMBT2907A Example of Buzzer s driving circuit NOTE To correctly drive a buzzer a driver must be provided its characteristics depend on the Buzzer and to get these pieces of info contact your buzzer v
69. tor must e invert the electrical signal in both directions e change the level from 0 3V to 15 15V Actually the RS232 UART 16450 16550 16650 amp 16750 chipsets accept signals with lower levels on the RS232 side EIA TIA 562 allowing for a lower voltage multiplying ratio on the level translator Note that the negative signal voltage must be less than OV and hence some sort of level translation is always required The simplest way to translate the levels and invert the signal is by using a single chip level translator There are a multitude of them differing in the number of drivers and receivers and the levels be sure to get a true RS232 level translator not a RS485 or other standards By convention the driver is the level translator from the 0 3V UART level to the RS232 level while the receiver is the translator from RS232 level to 0 3V UART In order to translate the whole set of control lines of the UART you will need e 5 driver e 3 receiver NOTE Al The digital input lines working at 2 8 VCMOS have an absolute maximum input voltage of 3 75V therefore the level translator IC must not be powered by the 3 8V supply of the module Instead it must be powered from a 2 8V 3 0V dedicated power supply This is because this way the level translator IC outputs on the module side i e GE863 inputs will work at 3 8V interface levels stressing the module inputs at its maximum input voltage This can be acceptable
70. tr_uart Ready READY condition GND 8 17 28 36 Ground ground 45 48 50 56 DSR 43 Data Set Ready Output from the GE863 that indicates the dsr_uar module is ready t RTS 40 Request to Send Input to the GE863 that controls the rts_uart Hardware flow control CTS 41 Clear to Send Output from the GE863 that controls the cts_uar Hardware flow control t RI 44 Ring Indicator Output from the GE863 that indicates the ri_uart incoming call condition NOTE According to V 24 RX TX signal names are referred to the application side therefore on the GE863 side these signal are on the opposite direction TXD on the application side will be connected to the receive line here named TXD rx_uart of the GE863 serial port and vice versa for RX TIP For a minimum implementation only the TXD and RXD lines can be connected the other lines can be left open provided a software flow control is implemented TIP In order to avoid noise or interferences on the RXD lines it is suggested to add a pull up resistor 100Kohm to 2 8V Page 42 of 81 Telit GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 6 4 GE863 GPS Secondary Ports 6 4 1 Modem Serial Port 2 GPS Control This port is used to control the GPS part by the GSM part It is available on the following pins PIN NAME DESCRIPTION TYPE 25 TX_TRACE TX Data for GPS control CMOS 2 8V 26 RX_TRACE RX Data for GPS control CMOS 2 8V The typical integration re
71. ty is capable to perform a Fix inside the buildings In any case the sensitivity could be affected by the building characteristics i e shielding e The Antenna must not be co located or operating in conjunction with any other antenna or transmitter e Antenna must not be installed inside metal cases e Antenna must be installed also according Antenna manufacturer instructions Telit GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 5 7 Logic Level Specifications Where not specifically stated all the interface circuits work at 2 8V CMOS logic levels The following table shows the logic level specifications used in the Telit GE863 interface circuits Absolute Maximum Ratings Not Functional Parameter Min Max Input level on any 0 3V 3 6V digital pin when on Input voltage on analog pins when on 0 3V 3 0 V Operating Range Interface Levels 2 8V CMOS Level Min Max 2 1V 3 3V OV 0 5V 3 0V 0 35V Input high level Input low level Output high level 2 2V Output low level OV For 1 8V signals Operating Range Interface Levels 1 8V CMOS Level Min Max Input high level 1 6V 2 2V Input low level OV 0 4V Output high level 1 65V 2 2V Output low level OV 0 35V Current Characteristics Level Typical Output Current 1mA Input Current 1yA AA gt la d ker e e Reproduction forbidden without Telit Communications S p A s written authorization All Rights Reserved Page 38 of
72. uide e by hardware shutdown e by Hardware Unconditional Shutdown When the device is shut down by software command or by hardware shutdown it issues to the network a detach request that informs the network that the device is reachable any more Hardware Shutdown To turn OFF the GE863 the pad ON must be tied low for at least 2 seconds and then released A pulse duration less than 2 seconds should also start the power off procedure but this is not guaranteed The same circuitry and timing for the power on must be used The device shuts down after the release of the ONF pad The following flow chart shows the proper turnoff procedure CA OFF or 15s timeout a ET aA _ D Reproduction forbidden without Telit Communications S p A s written authorization All Rights Reserved Page 16 of 81 Telit GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 Eva SR TIP To check if the device has powered off the hardware line PWRMON must be monitored When PWRMON goes low the device has powered off 4 2 2 Hardware Unconditional Shutdown for GE863 GPS only To unconditionally shut down the GE863 GPS the pad RESET must be tied low for at least 200 milliseconds and then released The maximum current that can be drained from the ON pad is 0 15 mA A simple circuit to do it is RESET J E A Zn AAA ON Pc Unconditional Shutdown NA impulse AA A
73. y will be slightly reduced The final charge can be of two different types constant voltage or pulsed GE863 uses constant voltage The constant voltage charge proceeds with a fixed voltage regulator very accurately set to the maximum battery voltage and the current decreases while the battery is becoming charged When the charging current falls below a certain fraction of the fast charge current value then the battery is considered fully charged the final charge stops and eventually starts the maintenance The pulsed charge process has no voltage regulation instead charge continues with pulses Usually the pulse charge works in the following manner the charge is stopped for some time let us say few hundreds of ms then the battery voltage will be measured and when it drops below its maximum value a fixed time length charging pulse is issued As the battery approaches its full charge the off time becomes longer and the duty cycle of the pulses decreases The battery is considered fully charged when the pulse duty cycle is less than a threshold value typically 10 the pulse charge stops and eventually the maintenance starts The last phase is not properly a charging phase since the battery at this point is fully charged and the process may stop after the final charge The maintenance charge Page 28 of 81 L AP Telit GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 provides an additional charging process to
74. yout must be designed for this current flow If the layout of the PCB is not well designed a strong noise floor is generated on the ground and the supply this reflects on all the audio paths producing an audible and annoying noise at 216 Hz if the voltage drops the peak current absorption is too much and the device may even shutdown as a consequence of the supply voltage drop TIP F The electrical design for the Power supply must be made ensuring it is capable of a peak current output of at least 2 A paua A r m _ D Reproduction forbidden without Telit Communications S p A s written authorization All Rights Reserved Page 23 of 81 Telit GE863 Family Hardware User Guide 1vv0300783 Rev 2 25 03 09 4 5 General Design Rules The principal guidelines for the Power Supply Design embrace three different design steps e the electrical design e the thermal design e the PCB layout 4 5 1 Electrical Design Guidelines The electrical design of the power supply depends strongly on the power sources where this power is drained We distinguish them into three categories e 5V input typically PC internal regulator output e 12V input typically automotive e battery 4 5 1 1 5V Input Source Power Supply Design Guidelines e The desired output for the power supply is 3 8V hence there is not a big difference between the input source and the desired output a linear regulator can be used A switching

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