Telit Wireless Solutions GE864 manuale d’uso

GE864 Hardware User Guide 1vv0300694 Rev.10 - 10/0 6 /08[...]

GE864 Hardware User Guide 1vv0300694 Rev.10 - 10/06/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 2 of 69 This document is relating to the following products: GE864-QUAD 3990250648 GE864-PY 3990250650[...]

GE864 Hardware User Guide 1vv0300694 Rev.10 - 10/06/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 3 of 69 Contents 1  Overview ....................................................................................................................... .... 7  2  GE864 Mechanical [...]

GE864 Hardware User Guide 1vv0300694 Rev.10 - 10/06/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 4 of 69 9.2  OUTPUT LINES (Speaker) .................................................................................................... 42  9.2.1  Short desc ription ..........[...]

GE864 Hardware User Guide 1vv0300694 Rev.10 - 10/06/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 5 of 69 12.1.7  Solder paste ................................................................................................................... ................ 63  12.1.8  GE8[...]

GE864 Hardware User Guide 1vv0300694 Rev.10 - 10/06/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 6 of 69 DISCLAIMER The information contained in this document is the proprietary information of Telit Communications S.p.A. and its affiliates (“TELIT”). The contents are confidentia[...]

GE864 Hardware User Guide 1vv0300694 Rev.10 - 10/06/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 7 of 69 1 Overview The aim of this document is the description of some h a rdware solutions u seful for developing a product with the Telit GE864-QUAD / PY module . In this document all [...]

GE864 Hardware User Guide 1vv0300694 Rev.10 - 10/06/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 8 of 69 2 GE864 Mechanical Dimensions The Telit GE864 module overall dimension are: • Length: 30 mm • Width: 30 mm • Thickness: 2.9 mm[...]

GE864 Hardware User Guide 1vv0300694 Rev.10 - 10/06/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 9 of 69 3 GE864 module connections 3.1 PIN-OUT Ball Signal I/O Function Internal PULL UP Typ e Audio H9 EAR_MT- AO Handset earphone signal output, phase - Audio G10 EAR_MT+ AO Handset ea[...]

GE864 Hardware User Guide 1vv0300694 Rev.10 - 10/06/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 10 of 69 Ball Signal I/O Function Internal PULL UP Typ e C7 DAC_OUT AO Digital/Analog converter output D/A J11 ADC_IN1 AI Analog/Digital converter input A/D H11 ADC_IN2 AI Analog/Digital[...]

GE864 Hardware User Guide 1vv0300694 Rev.10 - 10/06/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 11 of 69 Ball Signal I/O Function Internal PULL UP Typ e J1 VBATT - Main power supply Power K1 VBATT - Main power supply Power J2 VBATT - Main power supply Power K2 VBATT - Main power su[...]

GE864 Hardware User Guide 1vv0300694 Rev.10 - 10/06/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 12 of 69 Ball Signal I/O Function Internal PULL UP Typ e F2 - F3 - F4 - G6 - G7 - H4 - H7 - J4 - J6 - J7 - K9 - L5 - E5 - L7 - G5 - G3 - C6 - F8 - C5 - NOTE: RESERVED pins must not be co[...]

GE864 Hardware User Guide 1vv0300694 Rev.10 - 10/06/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 13 of 69 3.1.1 BGA Balls Layout TOP VIEW A B C D E F G H J K L 1 GND TGPIO_19 TGPIO_01 TGPIO_11 - GND CHARGE GND VBATT VBATT GND 2 RESET* - TGPIO_03 - VRTC - CHARGE GND VBATT VBATT GND 3[...]

GE864 Hardware User Guide 1vv0300694 Rev.10 - 10/06/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 14 of 69 AUDIO Signals balls SIM CARD interface balls TRACE Signals balls Prog. / data + Hw Flow Control signals balls DAC and ADC signals balls MISCELLANEOUS functions sig nals balls TE[...]

GE864 Hardware User Guide 1vv0300694 Rev.10 - 10/06/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 15 of 69 4 Hardware Commands 4.1 Turning ON the GE864-QUAD / PY To turn on the GE864-QUAD / PY the pad ON# must be tied low for at least 1 second and then released. The maximum current t[...]

GE864 Hardware User Guide 1vv0300694 Rev.10 - 10/06/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 16 of 69 For example: Let’s assume you need to drive the ON# pad with a totem pole output of a +3/5 V micro controller (uP_OUT1): Let’s assume you need to drive the ON # pad directly[...]

GE864 Hardware User Guide 1vv0300694 Rev.10 - 10/06/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 17 of 69 4.2 Turning OFF the GE864-QUAD / PY The turning off of the device can be done in three ways: • by software command (s ee GE864-QUAD / PY Software User Guide) • by hardware s[...]

GE864 Hardware User Guide 1vv0300694 Rev.10 - 10/06/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 18 of 69 NOTE: don’t use any pull up resisto r on the RESET# line nor an y totem pole digital output. Using pull up resi stor may bring to latch up problems on the GE864-QUAD / PY pow [...]

GE864 Hardware User Guide 1vv0300694 Rev.10 - 10/06/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 19 of 69 5 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 perfo rmances, h[...]

GE864 Hardware User Guide 1vv0300694 Rev.10 - 10/06/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 20 of 69 The GSM system is made in a way that the RF transmission is not con tinuous, else it is packed into bursts at a base frequency of about 216 Hz, the relative cu rrent peaks can b[...]

GE864 Hardware User Guide 1vv0300694 Rev.10 - 10/06/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 21 of 69 An example of linear regulator with 5V input is: 5.2.1.2 + 12V input Source Power Supply Design Gui delines • The desired output for the power supply is 3.8V; hence due to the[...]

GE864 Hardware User Guide 1vv0300694 Rev.10 - 10/06/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 22 of 69 An example of switching regulator with 12V input is in the below schematic (it is split in 2 parts):[...]

GE864 Hardware User Guide 1vv0300694 Rev.10 - 10/06/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 23 of 69 5.2.1.3 Battery Source Power Supply Design Guideli nes • The desired nominal output for the power supply is 3.8V and the maximum voltag e allowed is 4.2V, hence a single 3.7V [...]

GE864 Hardware User Guide 1vv0300694 Rev.10 - 10/06/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 24 of 69 5.2.1.4 Battery Charge control Circuitry Design Guidelines The charging process for Li-Ion Batteries can be divided into 4 phases: • Qualification and trickle charging • Fas[...]

GE864 Hardware User Guide 1vv0300694 Rev.10 - 10/06/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 25 of 69 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, [...]

GE864 Hardware User Guide 1vv0300694 Rev.10 - 10/06/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 26 of 69 5.2.2 Thermal Design Guidelines The thermal design for the power supply heat sink should be done with the following specifications: • Average current consumption during transm[...]

GE864 Hardware User Guide 1vv0300694 Rev.10 - 10/06/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 27 of 69 5.2.3 Power Supply PCB layout Guidelines As seen on the electrical design guidelines the pow er supply shall have a low ESR capacitor on the output to cut the current peaks and [...]

GE864 Hardware User Guide 1vv0300694 Rev.10 - 10/06/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 28 of 69 6 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, he[...]

GE864 Hardware User Guide 1vv0300694 Rev.10 - 10/06/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 29 of 69 This line of transmission shall ful fill the following requirements: ANTENNA LINE ON PCB REQUI REMENTS Impedance 50 ohm Max Attenuation 0,3 dB No coupling with other signals all[...]

GE864 Hardware User Guide 1vv0300694 Rev.10 - 10/06/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 30 of 69 6.3 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 a[...]

GE864 Hardware User Guide 1vv0300694 Rev.10 - 10/06/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 31 of 69 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 u[...]

GE864 Hardware User Guide 1vv0300694 Rev.10 - 10/06/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 32 of 69 7.1 Reset signal Signal Function I/O Bga Ball RESET Phone reset I A2 RESET is used to reset the GE864-Q UAD / PY modules . Whenever this signal is pulled low, the GE864- QUAD / [...]

GE864 Hardware User Guide 1vv0300694 Rev.10 - 10/06/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 33 of 69 8 Serial Ports The serial port on the Telit GE864-QUAD/PY is the core of the interface between the module and OEM hardware. 2 serial ports are available on the module: • MODEM[...]

GE864 Hardware User Guide 1vv0300694 Rev.10 - 10/06/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 34 of 69 The signals of the GE864 serial port are: RS232 Pin Number Signal GE864- QUAD / PY Pad Number Name Usage 1 DCD – dcd_uart D9 Data Carrier Detect Output from the GE864-QUAD / P[...]

GE864 Hardware User Guide 1vv0300694 Rev.10 - 10/06/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 35 of 69 8.2 RS232 level translation In order to interface the Telit GE864 with a PC com port or a RS232 (EIA/TIA-232) application a level translator is required. This level translator m[...]

GE864 Hardware User Guide 1vv0300694 Rev.10 - 10/06/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 36 of 69 An example of level translation circuitry of this kind is: The RS232 serial port lines are usually connected to a DB9 connector with the follow ing layout:[...]

GE864 Hardware User Guide 1vv0300694 Rev.10 - 10/06/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 37 of 69 8.3 5V UART level translation If the OEM application uses a microcontroller with a se rial port (UART) that works at a voltage different from 2.8 – 3V, then a circuitry has to[...]

GE864 Hardware User Guide 1vv0300694 Rev.10 - 10/06/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 38 of 69 NOTE: The UART input line TXD (rx_uart) of the GE864-QUAD / PY is NOT internally pulled up with a resistor, so there may be the ne ed to place an ext ernal 47K Ω pull-up resis[...]

GE864 Hardware User Guide 1vv0300694 Rev.10 - 10/06/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 39 of 69 9 Audio Section Overview The Base Band Chip of the GE864-QUAD / PY Telit M odule provides two different audio blocks; both in transmit ( Uplink ) and in receive ( Downlink ) dir[...]

GE864 Hardware User Guide 1vv0300694 Rev.10 - 10/06/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 40 of 69 9.1 INPUT LINES (Microphone) 9.1.1 Short description The Telit GE864-QUAD / PY provides two audio paths in transmit section. Only one of the two paths can be active at a time, s[...]

GE864 Hardware User Guide 1vv0300694 Rev.10 - 10/06/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 41 of 69 9.1.2 Input Lines Characteristics “MIC_MT” 1st differential microphone path Line Coupling AC* Line Type Balanced Coupling c apacitor ≥ 100nF Differential input resistance [...]

GE864 Hardware User Guide 1vv0300694 Rev.10 - 10/06/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 42 of 69 9.2 OUTPUT LINES (Speaker) 9.2.1 Short description The Telit GE864-QUAD / PY provides two audio paths in receive section. Only on e of the two paths can be active at a time, sel[...]

GE864 Hardware User Guide 1vv0300694 Rev.10 - 10/06/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 43 of 69 9.2.2 Output Lines Characteristics “EAR_MT” Differential Line-out Drivers Path Line Coupling DC Line Type Bridged Output load resistance ≥ 14 Ω Internal output resistan [...]

GE864 Hardware User Guide 1vv0300694 Rev.10 - 10/06/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 44 of 69 10 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) Input p[...]

GE864 Hardware User Guide 1vv0300694 Rev.10 - 10/06/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 45 of 69 Not all GPIO pads support all these three modes: • GPIO2 supports all three modes and can be input, output, Jamming Detect Output (Alternate function) • GPIO4 supports all t[...]

GE864 Hardware User Guide 1vv0300694 Rev.10 - 10/06/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 46 of 69 10.1 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 u sed i[...]

GE864 Hardware User Guide 1vv0300694 Rev.10 - 10/06/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 47 of 69 10.2 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 interfa[...]

GE864 Hardware User Guide 1vv0300694 Rev.10 - 10/06/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 48 of 69 10.4 Using the RF Transmission Control GPIO4 The GPIO4 pin, when configured as RF Transmission C ontrol Input, permits to disable the Transmitter when the GPIO is set to Low by [...]

GE864 Hardware User Guide 1vv0300694 Rev.10 - 10/06/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 49 of 69 10.7 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 [...]

GE864 Hardware User Guide 1vv0300694 Rev.10 - 10/06/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 50 of 69 10.8 Magnetic Buzzer Concepts 10.8.1 Short Description A magnetic Buzzer is a sound-generating device with a coil located in the magnetic circuit consisting of a permanent magne[...]

GE864 Hardware User Guide 1vv0300694 Rev.10 - 10/06/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 51 of 69 10.8.2 Frequency Behaviour The frequency behavior represents the effectiveness of the reproduction of the applie d signals. Because its performance is related to a square drivin[...]

GE864 Hardware User Guide 1vv0300694 Rev.10 - 10/06/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 52 of 69 10.9 Using the Temperature Monitor Function 10.9.1 Short Description The Temperature Monitor is a function of the module that permits to control its int ernal temperature and if[...]

GE864 Hardware User Guide 1vv0300694 Rev.10 - 10/06/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 53 of 69 10.10 Indication of network service availability The STAT_LED pin status shows information on the network service availability and Call status. In the GE864 modules, the STAT_LE[...]

GE864 Hardware User Guide 1vv0300694 Rev.10 - 10/06/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 54 of 69 10.11 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 othe[...]

GE864 Hardware User Guide 1vv0300694 Rev.10 - 10/06/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 55 of 69 11 DAC and ADC section 11.1 DAC Converter 11.1.1 Description The GE864-QUAD / PY module provides a Digital to Analog Converter. The signal (named DAC_OUT) is available on BGA Ba[...]

GE864 Hardware User Guide 1vv0300694 Rev.10 - 10/06/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 56 of 69 11.1.2 Enabling DAC An AT command is available to use the DAC function. The command is AT#DAC[=<enable>[,<value>]] <value> - scale factor of the integrated out[...]

GE864 Hardware User Guide 1vv0300694 Rev.10 - 10/06/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 57 of 69 11.2 ADC Converter 11.2.1 Description The on board A/D are 11-bit converter. They are able to read a voltage level in the range of 0÷2 volts applied on the ADC pin input, store[...]

GE864 Hardware User Guide 1vv0300694 Rev.10 - 10/06/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 58 of 69 12 Mounting the GE864 on your Board 12.1 General The Telit GE864 modules have been designed in order to be compliant with a standard lead-free SMT process. 12.1.1 Module finishi[...]

GE864 Hardware User Guide 1vv0300694 Rev.10 - 10/06/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 59 of 69 12.1.2 Recommended foot print for the application (GE864) Top Vie w[...]

GE864 Hardware User Guide 1vv0300694 Rev.10 - 10/06/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 60 of 69 12.1.3 Suggested Inhibit Area In order to easily rework the GE864 is suggested to consider on the application a 1.5mm Inhibit area around the module: Top View It is also suggest[...]

GE864 Hardware User Guide 1vv0300694 Rev.10 - 10/06/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 61 of 69 12.1.4 Debug of the GE864 in production To test and debug the mounting of the GE864, we strongly recommend to foreseen test pads on the host PCB, in order to check the connectio[...]

GE864 Hardware User Guide 1vv0300694 Rev.10 - 10/06/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 62 of 69 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] 2,5 Solder res[...]

GE864 Hardware User Guide 1vv0300694 Rev.10 - 10/06/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 63 of 69 Holes in pad are allowed only for blind holes and not for through holes. Recommendations for PCB pad surfaces: Finish Layer thickness [µm] Properties Electro-less Ni / Immersio[...]

GE864 Hardware User Guide 1vv0300694 Rev.10 - 10/06/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 64 of 69 12.1.8 GE864 Solder reflow The following is the recommended solder reflow profile Profile Feature Pb-Free Assembly Average ramp-up rate (T L to T P ) 3°C/second max Preheat 8 T[...]

GE864 Hardware User Guide 1vv0300694 Rev.10 - 10/06/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 65 of 69 12.2 Packing system The Telit GE864 modules are packaged on trays of 20 pieces each. This is especially suitable for the GE864 according to SMT processes for pick & place mo[...]

GE864 Hardware User Guide 1vv0300694 Rev.10 - 10/06/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 66 of 69 12.2.1 GE864 orientation on the tray 12.2.2 Moisture sensibility The level of moisture sensibility of GE864 module is “3”, in according with standard IP C/JEDEC J-STD- 020, [...]

GE864 Hardware User Guide 1vv0300694 Rev.10 - 10/06/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 67 of 69 13 Conformity Assessment Issues The GE864-QUAD / PY module is assessed to be conform to the R&TTE Directive as stand-alone products, so If the module is installed in conform[...]

GE864 Hardware User Guide 1vv0300694 Rev.10 - 10/06/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 68 of 69 14 SAFETY RECOMMANDATIONS READ CAREFULLY Be sure the use of this product is allowed in the country and in the environment required. The use of this product may be dangerous and [...]

GE864 Hardware User Guide 1vv0300694 Rev.10 - 10/06/08 Reproduction forbidden without Telit Communications S.p.A. writte n authorization - All Rights Reserved page 69 of 69 15 Document Change Log R R e e v v i i s s i i o o n n D D a a t t e e C C h h a a n n g g e e s s ISSUE#0 12/06/06 Release First ISSUE# 0 ISSUE #1 22/11/05 Added notice on page[...]