GE863 Family Hardware User Guide 1vv0300783 Rev.
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 This document is relating to the following products: GE863-GPS GE863-GPS GE863-QUAD GE863-PY GE863-SIM 3990250660 3990250690 3990250662 3990250661 3990250700 NOTE: This document substitutes the following specifications: • • 1vv0300715 GE863-QUAD/PY Hardware User Guide 1vv0300714 GE863-GPS Hardware User Guide Reproduction forbidden without Telit Communications S.p.A.
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 Contents 1 Overview ............................................................................................................................................ 7 2 GE863 Mechanical Dimensions....................................................................................................... 8 3 GE863 module connections.............................................................................................................. 9 4 3.
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 6.1 GE863-GPS SERIAL PORTS .............................................................................................................36 6.2 GE863-QUAD/PY/SIM SERIAL PORTS ..........................................................................................36 6.3 MODEM SERIAL PORT ....................................................................................................................37 6.4 GE863-GPS secondary ports ............
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 9.2 VAUX1 power output...........................................................................................................................62 10 PPS GPS Output (GE863-GPS only)............................................................................................. 63 10.1 Description ............................................................................................................................................63 10.
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 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 document, without the prior written consent of Telit, is strictly prohibited.
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 1 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 will be taken into account; for each one of them a proper hardware solution will be suggested and eventually the wrong solutions and common errors to be avoided will be evidenced.
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 2 GE863 Mechanical Dimensions The Telit GE863 modules overall dimension are: • • • Length: 41,4 mm Width: 31,4 mm Thickness: 3,6 mm Reproduction forbidden without Telit Communications S.p.A.
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 3 GE863 module connections 3.1 PIN-OUT BGA Ball 1 Signal I/O GPIO13 I/O GPIO13 2 GPIO12 I/O GPIO12 47KΩ CMOS 2.8V 3 GPIO11 I/O GPIO11 4.7KΩ CMOS 2.8V 4 GPIO10 I/O GPIO10 CMOS 2.8V 5 GPIO9 I/O GPIO9 CMOS 2.8V 6 GPIO8 I/O GPIO8 CMOS 2.
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 BGA Ball 28 Signal I/O GND - Function Internal Pull up Ground Type Power 29 STAT_LED 30 AXE I Handsfree switching 31 VAUX1 - Power output for external accessories 32 GPIO4 33 GPIO2 / JDR 34 GPIO1 35 CHARGE 36 GND - Ground 37 C103/TXD I Serial data input (TXD) from DTE 38 C104/RXD O Serial data output to DTE CMOS 2.8V 39 C108/DTR I Input for Data terminal ready signal (DTR) from DTE CMOS 2.
GE863 Hardware User Guide 1vv0300783 Rev.
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 3.2 PINS LAYOUT TOP VIEW Reproduction forbidden without Telit Communications S.p.A.
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 4 Hardware Commands 4.1 Turning ON the GE863 To turn on the GE863 the pad ON# must be tied low for at least 1 second and then released. The maximum current that can be drained from the ON# pad is 0,1 mA. A simple circuit to do it is: ON# R1 Q1 Power ON impulse R2 GND NOTE: don't use any pull up resistor on the ON# line, it is internally pulled up.
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 10k For example: 1- Let's assume you need to drive the ON# pad with a totem pole output of a +3/5 V microcontroller (uP_OUT1): 1s 2- Let's assume you need to drive the ON# pad directly with an ON/OFF button: Reproduction forbidden without Telit Communications S.p.A.
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 4.2 Turning OFF the GE863 The turning off of the device can be done in three ways: • by software command (see GE863 Software User Guide) • by hardware shutdown • 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 will not be reachable any more. 4.2.
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 NOTE: don't 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 should be always implemented on the boards and software should use it as an emergency exit procedure.
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 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# Unconditional Reboot impulse GND NOTE: don't use any pull up resistor on the RESET* line nor any totem pole digital output.
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 For example: 1- Let's assume you need to drive the RESET# pad with a totem pole output of a +3/5 V microcontroller (uP_OUT2): 10k Reproduction forbidden without Telit Communications S.p.A.
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 4.3 Power Supply The power supply circuitry and board layout are a very important part in the full product design and they strongly reflect on the product overall performances, hence read carefully the requirements and the guidelines that will follow for a proper design. 4.4 Power Supply Requirements POWER SUPPLY Nominal Supply Voltage 3.8 V Max Supply Voltage 4.2 V Supply voltage range 3.4 V - 4.
GE863 Hardware User Guide 1vv0300783 Rev.
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 4.5 General Design Rules The principal guidelines for the Power Supply Design embrace three different design steps: • the electrical design • the thermal design • the PCB layout. 4.5.1 Electrical Design Guidelines The electrical design of the power supply depends strongly from the power source where this power is drained.
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 An example of linear regulator with 5V input is: 4.5.1.2 + 12V Input Source Power Supply Design Guidelines • • • • • • • • The desired output for the power supply is 3.8V, hence due to the big difference between the input source and the desired output, a linear regulator is not suited and shall not be used. A switching power supply will be preferable because of its better efficiency especially with the 2A peak current load represented by the GE863.
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 An example of switching regulator with 12V input is in the below schematic (it is split in 2 parts): Reproduction forbidden without Telit Communications S.p.A.
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 4.5.1.3 Battery Source Power Supply Design Guidelines • The desired nominal output for the power supply is 3.8V and the maximum voltage allowed is 4.2V, hence a single 3.7V Li-Ion cell battery type is suited for supplying the power to the Telit GE863 module. The three cells Ni/Cd or Ni/MH 3,6 V Nom.
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 4.5.1.4 Battery Charge control Circuitry Design Guidelines The charging process for Li-Ion Batteries can be divided into 4 phases: • Qualification and trickle charging • Fast charge 1 - constant current • Final charge - constant voltage or pulsed charging • Maintenance charge The qualification process consists in a battery voltage measure, indicating roughly its charge status.
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 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, GE863 internal charger does it. As you can see, the charging process is not a trivial task to be done; moreover all these operations should start only if battery temperature is inside a charging range, usually 5°C - 45°C.
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 4.5.
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 4.5.3 Power Supply PCB layout Guidelines As seen on the electrical design guidelines the power supply shall 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 the power supply performances.
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 5 Antenna The antenna connection and board layout design are the most important part in the full product design and they strongly reflect on the product overall performances, hence read carefully and follow the requirements and the guidelines for a proper design. 5.
GE863 Hardware User Guide 1vv0300783 Rev.
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 5.3 GSM Antenna - Installation Guidelines • • • • Install the antenna in a place covered by the GSM signal. 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; Antenna shall not be installed inside metal cases Antenna shall be installed also according Antenna manufacturer instructions. 5.
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 5.4.3 LNA and Front End Design Considerations LNA gain should be between 12 dB and 26 dB (assumes a patch antenna). – This assumes the patch used has >3 dBic of gain Linear antenna implementation should consider a minimum of ~14.5 dB of LNA gain. Excessive LNA gain (>27 dB) can introduce jamming spurs, degrade 3IP, and saturate the receiver. The supply voltage most accept the range between 3.4 to 4.
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 This line of transmission shall fulfill the following requirements: ANTENNA LINE ON PCB REQUIREMENTS 50 ohm Impedance No coupling with other signals allowed Cold End (Ground Plane) of antenna shall be equipotential to the GE863-GPS ground pins Furthermore if the device is developed for the US market and/or Canada market, it shall comply with the FCC and/or IC approval requirements: This device is to be used only for mobile and fixed application. 5.
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 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 digital pin when on Input voltage on -0.3V analog pins when on +3.6V +3.0 V Operating Range - Interface levels (2.
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 5.7.1 Reset signal Signal RESET Function Phone reset I/O I BGA Ball 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. 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.
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 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: • MODEM SERIAL PORT • MODEM SERIAL PORT 2 (GPS CONTROL PORT) • GPS SERIAL PORT A (SIRF BINARY) • GPS SERIAL PORT B (NMEA) 6.
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 6.3 MODEM SERIAL PORT Several configurations can be designed for the serial port on the OEM hardware, but the most common are: • RS232 PC com port • microcontroller UART @ 2.8V - 3V (Universal Asynchronous Receive Transmit) • 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.
GE863 Hardware User Guide 1vv0300783 Rev.
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 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 # 25 26 NAME TX_TRACE RX_TRACE DESCRIPTION TX Data for GPS control RX Data for GPS control TYPE CMOS 2.8V CMOS 2.8V The typical integration requires connecting these pins to GPS serial port A: PIN # 25 26 NAME TX_TRACE RX_TRACE NAME RX_GPS_BIN TX_GPS_BIN PIN# 78 80 6.4.
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 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 # 68 73 NAME TX_GPS RX_GPS DESCRIPTION GPS TX Data (NMEA) GPS RX Data (NMEA) TYPE CMOS 2.8V 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. 6.
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 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.
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 An example of level translation circuitry of this kind is: Reproduction forbidden without Telit Communications S.p.A.
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 The RS232 serial port lines are usually connected to a DB9 connector with the following layout: Reproduction forbidden without Telit Communications S.p.A.
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 6.7 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.
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 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 47KΩ pull-up resistor, either the DTR (dtr_uart) and RTS (rts_uart) input lines are not pulled up internally, so an external pull-up resistor of 47KΩ may be required. A power source of the internal interface voltage corresponding to the 2.8VCMOS high level is available at the VAUX pin.
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 7 Audio Section Overview The Base Band Chip of the GE863 Telit Module provides two different audio blocks; both in transmit (Uplink) and in receive (Downlink) direction: “MT lines” should be used for handset function, “HF lines” is suited for hands -free function (car kit). These two blocks can be active only one at a time, selectable by AXE hardware line or by AT command.
50cm 7cm 3,3mV rms -45dBV/Pa -45dBV/Pa 0,33mV rms Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved 23mVrms 365mVrms GE863 Audio Paths GE863-GPS Audio Paths +10dB +20dB Ear_HF- Ear_HF+ Mic_HF+ Mic_HF- Ear_MT- Ear_MT+ Mic_MT- Mic_MT+ GE863 GM863-GPS Single ended Balanced Fully Differential Power Buffers Differential Line-Out Drivers 16 -12dBFS 16 audio2.skd 8 GE863 Hardware User Guide 1vv0300783 Rev.
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 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 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 transmit blocks when designing: The “MIC_MT” audio path should be used for handset function, while the “MIC_HF” audio path is suited for hands-free function (car kit).
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 7.1.
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 7.2 OUTPUT LINES (Speaker) 7.2.1 Short description The Telit GE863 provides two audio paths in receive section. Only one of the two paths can be active at a time, selectable by AXE hardware line or by AT command.
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 7.2.
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 8 General Purpose I/O The general purpose I/O pads can be configured to act in three different ways: • input • output • alternate function (internally controlled) The following GPIO are available on the GE863: Ball Signal I/O Function Type 34 GPIO1 I/O GPIO01 Configurable GPIO CMOS 2.8V Input / output current 1uA / 1mA 33 GPIO2 I/O GPIO02 Configurable GPIO CMOS 2.
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 Not all GPIO pads support all these three modes: • GPIO1, GPIO3, GPIO8 to GPIO18 support both input and output mode but not Alternate function.
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 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 digital pin when on Input voltage on -0.3V analog pins when on +3.6V +3.0 V Operating Range - Interface levels (2.8V CMOS) Level Min Max Input high level 2.1V 3.
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 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 to be connected with the GPIO input pad has interface levels different from the 2.8V CMOS, then it can be buffered with an open collector transistor with a 47K pull up to 2.8V. 8.
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 8.6 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.
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 8.7 Using the Buzzer Output GPIO7 As Alternate Function, the GPIO7 is controlled by the firmware that depends on the function implemented internally. This setup places always the GPIO7 pin in OUTPUT direction and the corresponding function must be activated properly by AT#SRP command (refer to AT commands specification). Also in this case, the dummy value for the pin state can be both “0” or “1”.
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 8.8 Magnetic Buzzer Concepts 8.8.1 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. Drawing of the Magnetic Buzzer. The disk and diaphragm are attracted to the core by the magnetic field.
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 8.8.2 Frequency Behaviour The frequency behaviour represents the effectiveness of the reproduction of the applied signals. Because its performance is related to a square driving waveform (whose amplitude varies from 0V to Vpp), if you modify the waveform (e.g. from square to sinus) the frequency response will change. 8.8.
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 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 #TEMPMON command on AT Interface guide) it raise to High Logic level a GPIO when the maximum temperature is reached. 8.9.
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 8.10 Indication of network service availability The STAT_LED pin status shows information on the network service availability and Call status. In the GE863 modules, the STAT_LED needs an external transistor to drive an external LED. Therefore, the status indicated in the following table is reversed with respect to the pin status.
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 9 RTC and Ausiliary 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 having only RTC going on when all the other parts of the device are off. To this power output a backup capacitor can be added in order to increase the RTC autonomy during power off of the battery. NO Devices must be powered from this pin. 9.
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 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.
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 11 DAC and ADC section 11.1 DAC Converter 11.1.1 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 a analogue value based a specific input in the range from 0 up to 1023.
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 11.1.2 Enabling DAC An AT command is available to use the DAC function. The command is AT#DAC[=[,]] - scale factor of the integrated output voltage (0..1023 - 10 bit precision) it must be present if =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. 11.1.
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 11.2 ADC Converter 11.2.1 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.
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 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 & Dimensions 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.
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 12.1.2 Recommended foot print for the application NOTE: Pads 81, 82, 83 and 84 are not in line with the others. Please check the quotes. Reproduction forbidden without Telit Communications S.p.A.
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 12.1.1 Suggested Inhibit Area In order to easily rework the GE863 is suggested to consider on the application 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 having a mechanical part of the application in direct contact with the module. Reproduction forbidden without Telit Communications S.p.A.
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 12.1.2 Debug of the GE863 in Production To test and debug the mounting of the GE863, we strongly recommend to foreseen 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.
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 12.1.4 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] Solder resist opening diameter A [mm] Metal pad diameter B [mm] 2 1,150 1 ± 0.05 Reproduction forbidden without Telit Communications S.p.A.
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 Placement of microvias not covered by solder resist is not recommended inside the “Solder resist opening”, unless the microvia carry the same signal of the pad itself. Holes in pad are allowed only for blind holes and not for through holes. Reproduction forbidden without Telit Communications S.p.A.
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 Recommendations for PCB pad surfaces: Finish Electro-less Ni / Immersion Au Layer thickness [µm] 3 –7 / 0.05 – 0.15 Properties Good solder ability protection, high shear force values The PCB must be able to resist the higher temperatures, which are occurring at the lead-free process. This issue should be discussed with the PCB-supplier.
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GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 12.1.7 Packing System 170 ± 0,3 According to SMT processes for pick & place movement requirements, Telit GE863 modules are packaged on trays, each tray contains 20 pieces. Tray dimensions are: 320 ± 0,3 All quotes are in mm, general tolerance ± 0.1 Note that trays can withstand a maximum temperature of 65° C. Section A-A 6.1 Reproduction forbidden without Telit Communications S.p.A.
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 Modules orientation on tray: Ref. Not rounded corner of module’s printed board indicates pin 1 corner. The modules in the tray are oriented as shown in A and the tray is oriented toward left as shown in B. A B Reproduction forbidden without Telit Communications S.p.A.
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 12.1.8 Moisture Sensibility The level of moisture sensibility of Telit GE863 modules is “3”, according with standard IPC/JEDEC JSTD-020, take care of all the relative requirements for using this kind of components.
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 13 Conformity Assessment Issues The GE863-GPS/PY/QUAD/SIM module are assessed to be conform to the R&TTE Directive as stand-alone products, so If the module is installed in conformance with Dai Telecom installation instructions require no further evaluation under Article 3.2 of the R&TTE Directive and do not require further involvement of a R&TTE Directive Notified Body for the final product.
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 14 SAFETY RECOMMANDATIONS READ CAREFULLY Be sure the use of this product is allowed in the country and in the environment required.
GE863 Hardware User Guide 1vv0300783 Rev.0 - 10/06/08 15 Document Change Log Revision Date Changes ISSUE #0 10/06/08 First release Reproduction forbidden without Telit Communications S.p.A.
