Telit Wireless Solutions GE864-QUAD Automotive V2 Hardware User's Manual
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Telit Wireless Solutions GE864-QUAD Automotive V2 Hardware User's Manual

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GE864-QUAD Automotive V2
Hardware User Guide
1vv0300840 Rev.0.1 - 24/11/09

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Summary of Contents for Telit Wireless Solutions GE864-QUAD Automotive V2

  • Page 1 GE864-QUAD Automotive V2 Hardware User Guide 1vv0300840 Rev.0.1 - 24/11/09...
  • Page 2 GE864-QUAD Automotive V2 Hardware User Guide 1vv0300840 Rev.0.1 24/11/09 This document is relating to the following products: GE864-QUAD Automotive V2 Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 2 of 65...

  • Page 3: Table Of Contents

    GE864-QUAD Automotive V2 Mechanical Dimensions..........7 GE864-QUAD Automotive V2 module connections............8 PIN-OUT...........................8 3.1.1 BGA Balls Layout........................... 12 Hardware Commands ....................14 Turning ON the GE864-QUAD Automotive V2 module............14 Turning OFF the GE864-QUAD Automotive V2..............17 4.2.1 Hardware shutdown........................17 4.2.2 Hardware Unconditional Restart....................18 Power Supply .........................20...
  • Page 4 ADC Converter ........................54 11.2.1 Description ............................. 54 11.2.2 Using ADC Converter ........................54 11.3 Mounting the GE864-QUAD Automotive V2 on your Board..........55 11.3.1 General ............................55 11.3.2 Module finishing & dimensions ...................... 55 11.3.3 Recommended foot print for the application (GE864) ..............56 11.3.4...
  • Page 5 GE864-QUAD Automotive V2 Hardware User Guide 1vv0300840 Rev.0.1 24/11/09 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 document, without the prior written consent of Telit, is strictly prohibited.

  • Page 6: Overview

    For further hardware details that may not be explained in this document refer to the Telit GE864-QUAD Automotive V2 Product Description document where all the hardware information is reported. NOTICE GE864-QUAD Automotive V2...

  • Page 7: Ge864-Quad Automotive V2 Mechanical Dimensions

    GE864-QUAD Automotive V2 Hardware User Guide 1vv0300840 Rev.0.1 24/11/09 2 GE864-QUAD Automotive V2 Mechanical Dimensions Telit GE864-QUAD Automotive V2 module overall dimension are: • Length: 30 mm • Width: 30 mm • Thickness: 2.9 mm Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved...

  • Page 8: Ge864-Quad Automotive V2 Module Connections

    GE864-QUAD Automotive V2 Hardware User Guide 1vv0300840 Rev.0.1 24/11/09 3 GE864-QUAD Automotive V2 module connections 3.1 PIN-OUT Ball Signal Function Internal PULL UP Type Audio Handsfree switching 100K CMOS 2.8V Handsfree mic. input; phase +, nom. level MIC_HF+ Audio 3mVrms Handset mic.signal input;...
  • Page 9 CMOS 1.8V Input command for switching power ON or OFF (toggle command). The pulse to be sent to the ON_OFF* Pull up to VBATT GE864-QUAD Automotive V2 must be equal or greater than 1 second. PWRMON Power ON Monitor CMOS 2.8V Antenna Antenna output –...
  • Page 10 GE864-QUAD Automotive V2 Hardware User Guide 1vv0300840 Rev.0.1 24/11/09 Ball Signal Function Internal PULL UP Type Ground Power Ground Power Ground Power Ground Power RESERVED Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved...
  • Page 11 GE864-QUAD Automotive V2 Hardware User Guide 1vv0300840 Rev.0.1 24/11/09 Ball Signal Function Internal PULL UP Type Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved * Ref. to Digital Voice Interface Application Note 80000NT10004a.

  • Page 12: Bga Balls Layout

    GE864-QUAD Automotive V2 Hardware User Guide 1vv0300840 Rev.0.1 24/11/09 3.1.1 BGA Balls Layout TOP VIEW VBATT VBATT RESET* VRTC VBATT VBATT GPIO_08 / GPIO_04 32K_IN PCM_TX SIMVCC Antenna GPIO_06 / GPIO_02 / ON_OFF* ALARM PCM_WAO GPIO_01 / C106 / C125/RING...
  • Page 13 GE864-QUAD Automotive V2 Hardware User Guide 1vv0300840 Rev.0.1 24/11/09 AUDIO Signals balls SIM CARD interface balls TRACE Signals balls Prog. / data + Hw Flow Control signals balls ADC signals balls MISCELLANEOUS functions signals balls TELIT GPIO balls POWER SUPPLY VBATT balls...

  • Page 14: Hardware Commands

    4.1 Turning ON the GE864-QUAD Automotive V2 module To turn on the GE864-QUAD Automotive V2 the pad ON* must be tied low for at least 1 seconds and then released. The maximum current that can be drained from the ON* pad is 0,1 mA.
  • Page 15 GE864-QUAD Automotive V2 Hardware User Guide 1vv0300840 Rev.0.1 24/11/09 A flow chart showing the proper turn on procedure is displayed below: Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 15 of 65...
  • Page 16 GE864-QUAD Automotive V2 Hardware User Guide 1vv0300840 Rev.0.1 24/11/09 For example: 1- Let's assume you need to drive the ON* pad with a totem pole output from +1.8V up to 5V microcontroller (uP_OUT1): +1.8V ... 5V 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.

  • Page 17: Turning Off The Ge864-Quad Automotive V2

    4.2.1 Hardware shutdown To turn OFF the GE864-QUAD Automotive V2 the pad ON* must be tied low for at least 2 seconds and then released.The same circuitry and timing for the power on shall be used.

  • Page 18: Hardware Unconditional Restart

    GE864-QUAD Automotive V2 Hardware User Guide 1vv0300840 Rev.0.1 24/11/09 4.2.2 Hardware Unconditional Restart To unconditionally Restart the GE864-QUAD Automotive V2, the pad RESET* must be tied low for at least 200 milliseconds and then released.A simple circuit to do it is: RESET*...
  • Page 19 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 GE864-QUAD Automotive V2 power regulator and improper functioning of the module. The line RESET* must be connected only in open collector configuration.

  • Page 20: Power Supply

    GE864-QUAD Automotive V2 Hardware User Guide 1vv0300840 Rev.0.1 24/11/09 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 performances, hence read carefully the requirements and the guidelines that will follow for a proper design.

  • Page 21: Power Consumption

    GE864-QUAD Automotive V2 Hardware User Guide 1vv0300840 Rev.0.1 24/11/09 5.2 Power Consumption The GE864-QUAD Automotive V2 power consumptions are: GE864-QUAD Automotive V2 Mode Average (mA) Mode description IDLE mode Stand by mode; no call in progress AT+CFUN=1 23,9 Normal mode: full functionality of the module Disabled TX and RX;...

  • Page 22: General Design Rules

    • A Bypass low ESR capacitor of adequate capacity must be provided in order to cut the current absorption peaks close to the GE864-QUAD Automotive V2, a 100μF tantalum capacitor is usually suited. • Make sure the low ESR capacitor on the power supply output (usually a tantalum one) is rated at least 10V.

  • Page 23: Input Source Power Supply Design Guidelines

    A switching power supply will be preferable because of its better efficiency especially with the 2A peak current load represented by the GE864-QUAD Automotive V2. •...
  • Page 24 GE864-QUAD Automotive V2 Hardware User Guide 1vv0300840 Rev.0.1 24/11/09 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. written authorization - All Rights Reserved...

  • Page 25: Battery Source Power Supply Design Guidelines

    GE864-QUAD Automotive V2 and damage it. NOTE: DON'T USE any Ni-Cd, Ni-MH, and Pb battery types directly connected with GE864-QUAD Automotive V2. Their use can lead to overvoltage on the GE864-QUAD Automotive V2 and damage it. USE ONLY Li-Ion battery types.

  • Page 26: Thermal Design Guidelines

    For the heat generated by the GE864-QUAD Automotive V2, you can consider it to be during transmission 1W max during CSD/VOICE calls and 2W max during class10 GPRS upload.

  • Page 27: Power Supply Pcb Layout Guidelines

    If your application doesn't have audio interface but only uses the data feature of the Telit GE864-QUAD Automotive V2, then this noise is not so disturbing and power supply layout design can be more forgiving.

  • Page 28: Antenna

    In the case that the antenna is not directly developed on the same PCB, hence directly connected at the antenna pad of the GE864-QUAD Automotive V2, then a PCB line is needed in order to connect with it or with its connector.

  • Page 29: Gsm Antenna - Pcb Line Guidelines

    PCB and surround it with Ground planes, or shield it with a metal frame cover. • If you don't have EM noisy devices around the PCB of GE864-QUAD Automotive V2, by using a strip-line on the superficial copper layer for the antenna line, the line attenuation will be lower than a buried one;...

  • Page 30: Gsm Antenna - Installation Guidelines

    GE864-QUAD Automotive V2 Hardware User Guide 1vv0300840 Rev.0.1 24/11/09 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 at least 20 cm from all persons and must not be co-located or operating in conjunction with any other antenna or transmitter;...

  • Page 31: Logic Level Specifications

    GE864-QUAD Automotive V2 Hardware User Guide 1vv0300840 Rev.0.1 24/11/09 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 GE864-QUAD Automotive V2...

  • Page 32: Reset Signal

    GE864-QUAD Automotive V2 modules. Whenever this signal is pulled low, the GE864-QUAD Automotive V2 is reset. When the device is reset it stops any operation. After the release of the reset GE864-QUAD Automotive V2 is unconditionally shut down, without doing any detach operation from the network where it is registered.

  • Page 33: Serial Ports

    The only configuration that doesn't need a level translation is the 2.8V UART. The serial port on the GE864-QUAD Automotive V2 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...
  • Page 34 NOTE: According to V.24, RX/TX signal names are referred to the application side, therefore on the GE864 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 GE864-QUAD Automotive V2 serial port and viceversa for RX.

  • Page 35: Rs232 Level Translation

    1vv0300840 Rev.0.1 24/11/09 8.2 RS232 level translation In order to interface the Telit GE864-QUAD Automotive V2 with a PC com port or a RS232 (EIA/TIA- 232) application a level translator is required. This level translator must invert the electrical signal in both directions change the level from 0/3V to +15/-15V Actually, the RS232 UART 16450, 16550, 16650 &...
  • Page 36 GE864-QUAD Automotive V2 Hardware User Guide 1vv0300840 Rev.0.1 24/11/09 An example of level translation circuitry of this kind is: The example is done with a SIPEX SP3282EB RS232 Transceiver that could accept supply voltages lower than 3V DC. In this case Vin has to be set with a value compatible with the logic levels of the module. (Max 2.9V DC).

  • Page 37: Uart Level Translation

    GE864-QUAD Automotive V2 Hardware User Guide 1vv0300840 Rev.0.1 24/11/09 Second solution could be done using a MAXIM transceiver (MAX218) In this case the compliance with RS232 (+-5V) is possible. Another level adapting method could be done using a standard RS232 Transceiver (MAX3237EAI) adding some resistors to adapt the levels on the GE865 Input lines.
  • Page 38 TIP: This logic IC for the level translator and 2.8V pull-ups (not the 5V one) can be powered directly from PWRMON line of the GE864-QUAD Automotive V2. Note that the TC7SZ07AE has open drain output, therefore the resistor R2 is mandatory.
  • Page 39 1vv0300840 Rev.0.1 24/11/09 NOTE: The UART input line TXD (rx_uart) of the GE864-QUAD Automotive V2 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...

  • Page 40: Audio Section Overview

    1vv0300840 Rev.0.1 24/11/09 9 Audio Section Overview The Base Band Chip of the GE864-QUAD Automotive V2 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”...

  • Page 41: Input Lines (Microphone)

    9.1 INPUT LINES (Microphone) 9.1.1 Short description The Telit GE864-QUAD Automotive V2 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.

  • Page 42: Input Lines Characteristics

    GE864-QUAD Automotive V2 Hardware User Guide 1vv0300840 Rev.0.1 24/11/09 9.1.2 Input Lines Characteristics “MIC_MT” 1st differential microphone path Line Coupling Line Type Balanced Coupling capacitor ≥ 100nF Differential input resistance 50kΩ Differential input voltage ≤ 1,03V (365mV Microphone nominal sensitivity...

  • Page 43: Output Lines (Speaker)

    9.2 OUTPUT LINES (Speaker) 9.2.1 Short description The Telit GE864-QUAD Automotive V2 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.

  • Page 44: Output Lines Characteristics

    GE864-QUAD Automotive V2 Hardware User Guide 1vv0300840 Rev.0.1 24/11/09 9.2.2 Output Lines Characteristics “EAR_MT” Differential Line-out Drivers Path Line Coupling Line Type Bridged Output load resistance ≥ 14 Ω Internal output resistance 4 Ω (typical) Signal bandwidth 150 – 4000 Hz @ -3 dB Differential output voltage 328mVrms /16 Ω...

  • Page 45: General Purpose I/O

    GE864-QUAD Automotive V2 firmware and acts depending on the function implemented. For Logic levels please refer to chapter 7.

  • Page 46: Gpio Logic Levels

    GE864-QUAD Automotive V2 Hardware User Guide 1vv0300840 Rev.0.1 24/11/09 10.1 GPIO Logic levels Where not specifically stated, all the interface circuits work at 2.8V CMOS logic levels. GE864-QUAD Automotive V2 The following table shows the logic level specifications used in the...

  • Page 47: Using A Gpio Pad As Input

    GE864-QUAD Automotive V2 Hardware User Guide 1vv0300840 Rev.0.1 24/11/09 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 interface levels compatible with the 2.8V CMOS levels of the GPIO.

  • Page 48: Using The Rftxmon Output Gpio5

    TX burst. 10.6 Using the Alarm Output GPIO6 The GPIO6 pad, when configured as Alarm Output, is controlled by the GE864-QUAD Automotive V2 module and will rise when the alarm starts and fall after the issue of a dedicated AT command.
  • Page 49 GE864-QUAD Automotive V2 Hardware User Guide 1vv0300840 Rev.0.1 24/11/09 A sample interface scheme is included below to give you an idea of how to interface a Buzzer to the GPIO7: NOTE: To correctly drive a buzzer a driver must be provided, its characteristics depend on the Buzzer and for them refer to your buzzer vendor.

  • Page 50: Indication Of Network Service Availability

    10.8 Indication of network service availability The STAT_LED pin status shows information on the network service availability and Call status. In the GE864-QUAD Automotive V2 modules, the STAT_LED usually 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.

  • Page 51: Rtc Bypass Out

    GE864-QUAD Automotive V2 Hardware User Guide 1vv0300840 Rev.0.1 24/11/09 10.9 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.

  • Page 52: Dac And Adc Section

    11.1.1 Description The GE864-QUAD Automotive V2 module provides a Digital to Analog Converter. The signal (named DAC_OUT) is available on BGA Ball C7 of the GE864-QUAD Automotive V2 module and on pin 17 of PL102 on EVK2 Board (CS1302). 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.

  • Page 53: Enabling Dac

    GE864-QUAD Automotive V2 Hardware User Guide 1vv0300840 Rev.0.1 24/11/09 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 output voltage (0..1023 – 10 bit precision) it must be present if <enable>=1...

  • Page 54: Adc Converter

    Resolution < 1 The GE864-QUAD Automotive V2 module provides 2 Analog to Digital Converters. The input lines are: ADC_IN1 available on Ball J11 and Pin 19 of PL102 on EVK2 Board. ADC_IN2 available on Ball H11 and Pin 20 of PL102 on EVK2 Board.

  • Page 55: Mounting The Ge864-Quad Automotive V2 On Your Board

    GE864-QUAD Automotive V2 Hardware User Guide 1vv0300840 Rev.0.1 24/11/09 11.3 Mounting the GE864-QUAD Automotive V2 on your Board 11.3.1 General Telit GE864-QUAD Automotive V2 modules have been designed in order to be compliant with a standard lead-free SMT process. 11.3.2 Module finishing & dimensions...

  • Page 56: Recommended Foot Print For The Application (Ge864)

    GE864-QUAD Automotive V2 Hardware User Guide 1vv0300840 Rev.0.1 24/11/09 11.3.3 Recommended foot print for the application (GE864) Top View Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 56 of 65...

  • Page 57: Debug Of The Ge864 In Production

    GE864-QUAD Automotive V2 Hardware User Guide 1vv0300840 Rev.0.1 24/11/09 11.3.4 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 connection between the GE864 itself and the application and to test the performance of the module connecting it with an external computer.

  • Page 58: Pcb Pad Design

    GE864-QUAD Automotive V2 Hardware User Guide 1vv0300840 Rev.0.1 24/11/09 11.3.6 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] Solder resist opening diameter A [mm]...

  • Page 59: Solder Paste

    GE864-QUAD Automotive V2 Hardware User Guide 1vv0300840 Rev.0.1 24/11/09 It is not recommended to place via or microvia not covered by solder resist in an area of 1,6mm diameter around the pads unless it carries the same signal of the pad itself. (see following figure).

  • Page 60: Ge864 Solder Reflow

    GE864-QUAD Automotive V2 Hardware User Guide 1vv0300840 Rev.0.1 24/11/09 11.3.8 GE864 Solder reflow The following is the recommended solder reflow profile Profile Feature Pb-Free Assembly Average ramp-up rate (T to T 3°C/second max Preheat – Temperature Min (Tsmin) 150°C – Temperature Max (Tsmax) 200°C...

  • Page 61: Packing System

    GE864-QUAD Automotive V2 Hardware User Guide 1vv0300840 Rev.0.1 24/11/09 11.4 Packing system 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 movement requirements.

  • Page 62: Ge864 Orientation On The Tray

    GE864-QUAD Automotive V2 Hardware User Guide 1vv0300840 Rev.0.1 24/11/09 11.4.1 GE864 orientation on the tray 11.4.2 Moisture sensibility The level of moisture sensibility of GE864 module is “3”, in according with standard IPC/JEDEC J-STD- 020, take care all the relatives requirements for using this kind of components.

  • Page 63: Conformity Assessment Issues

    1vv0300840 Rev.0.1 24/11/09 12 Conformity Assessment Issues The GE864-QUAD Automotive V2 module is 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.

  • Page 64: Safety Recommandations

    GE864-QUAD Automotive V2 Hardware User Guide 1vv0300840 Rev.0.1 24/11/09 13 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 has to be avoided in the following areas:...

  • Page 65: Document Change Log

    GE864-QUAD Automotive V2 Hardware User Guide 1vv0300840 Rev.0.1 24/11/09 14 Document Change Log ISSUE#0 01/07/08 First Release from rev 7 of 1vv0300779 ISSUE#0.1 24/11/09 Antenna Gain values changed at section 6 and 12. Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved...

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