GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 APPLICABILITY TABLE PRODUCT GE864-QUAD V2 GE864-GPS GC864-QUAD V2 GC864-QUAD V2 With SIM Holder Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 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.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 Contents APPLICABILITY TABLE .............................................................................................................................................. 2 1. 1.1. 1.2. 1.3. 1.4. 1.5. 1.6. 1.7. INTRODUCTION .............................................................. 7 SCOPE .....................................................................................................................................
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 7.2.2. 7.2.3. 7.2.4. 7.2.5. 8. 8.1. 9. Combined GPS Antenna ........................................................................................................................... 52 Linear and Patch GPS Antenna ............................................................................................................... 52 GPS Antenna - PCB Line Guidelines .................................................................
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 13.2.2. 14. Using ADC Converter .............................................................................................................................. 83 ASSEMBLY THE GE/GC864-QUAD V2 AND GE864-GPS ON THE BOARD ................. 84 14.1. ASSEMBLY THE GE864-QUAD V2.................................................................................................................... 84 14.1.1.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 1. 1.1. Introduction Scope The aim of this document is the description of some hardware solutions useful for developing a product with the Telit GE/GC864-QUAD V2 and GE864-GPS modules. 1.2. Audience This document is intended for Telit customers, who are integrators, about to implement their applications using our GE/GC864-QUAD V2 and GE864-GPS modules. 1.3.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 1.4. Document Organization This document contains the following chapters: Chapter 1: “Introduction” provides a scope for this document, target audience, contact and support information, and text conventions. Chapter 2: “Overview” provides an overview of the document. Chapter 3: “Mechanical Dimensions” Chapter 4: “Electrical Connections” deals with the pin out configuration and layout.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 Chapter 17: “Safety Recommendations”: contains recommendations for proper and safe user 1.5. Text Conventions Danger – This information MUST be followed or catastrophic equipment failure or bodily injury may occur. Caution or Warning – Alerts the user to important points about integrating the module, if these points are not followed, the module and end user equipment may fail or malfunction.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 1.7. Document History Revision Date Changes ISSUE#0 ISSUE#1 2011-01-14 2011-04-07 First preliminary release Updated power consumption for GE864-GPS and ATEX data for GE864-GPS ISSUE#2 2011-06-15 Updated Pin Out GE864 QUAD/GPS Added “5.4 Turning ON/OFF the GPS (only GE864-GPS)” paragraph Updated GPS Antenna Requirements Updated Logic Level Specifications Added “11.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 2. Overview In this document all the basic functions of a mobile phone are 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 are evidenced. Obviously this document cannot embrace the whole hardware solutions and products that may be designed.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 3. 3.1. GE864-QUAD V2/GPS Mechanical Dimensions GE864-QUAD V2/GPS The Telit GE864-QUAD V2/GPS modules overall dimensions are: • • • • Length: Width: Thickness Weight: 30 mm 30 mm : 2,9 mm 4.2g Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 3.2. GC864-QUAD V2 The Telit GC864-QUAD V2 module overall dimensions are: • • • • Length: Width: Thickness: Weight: 36.2 mm 30 mm 3.2 mm 4.8g Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 3.3. Mechanical View of Telit GC864-QUAD V2 with SIM Holder 3.4. GC864-QUAD V2 Module Connections Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 4. Electrical Connections 4.1. GE864-QUAD V2/GPS 4.1.1. PIN-OUT The GE864-QUAD V2/GPS use 11x11 array BGA technology connection Ball Signal I/O Internal PULL UP Function Type Audio F9 AXE I G8 MIC_HF+ AI G9 MIC_MT- AI G10 EAR_MT+ AO J8 MIC_MT+ AI J9 MIC_HF- AI J10 EAR_HF- AO Handsfree switching Handsfree mic. input; phase +, nom. level 3mVrms Handset mic.signal input; phase-, nom.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 Ball Signal I/O E7 C103/TXD I E11 C107/DSR O F7 C105/RTS I F6 C106/CTS O H8 C104/RXD O Internal PULL UP Function Serial data input (TXD) from DTE Output for Data set ready signal (DSR) to DTE Input for Request to send signal (RTS) from DTE Output for Clear to send signal (CTS) to DTE Serial data output to DTE Type CMOS 2.8V CMOS 2.8V CMOS 2.8V CMOS 2.8V CMOS 2.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 NOTE: RTS must be connected to the GND (on the module side) if flow control is not used. NOTE: If not used, almost all pins must be left disconnected.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 4.1.2.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 AUDIO Signals balls SIM CARD interface balls AUX UART&SERVICE Signals balls Prog. / data + Hw Flow Control signals balls ADC signals balls MISCELLANEOUS functions balls signals TELIT GPIO balls GPS balls POWER SUPPLY VBATT POWER SUPPLY GND balls balls RESERVED Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 4.2. GC864-QUAD V2 4.2.1. PIN-OUT The GC864-QUAD V2 uses an 80 pin Molex p.n. 53949-0878 male connector for the connections with the external applications. This connector matches the 54150-0878 models.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 Pin Signal I/O Function Internal Pull up Type Prog. / Data + Hw Flow Control 25 C103/TXD I Serial data input (TXD) from DTE CMOS 2.8V 26 C104/RXD O Serial data output (RXD) to DTE CMOS 2.8V 27 C107/DSR O Output for Data set ready signal (DSR) to DTE CMOS 2.8V 28 C106/CTS O Output for Clear to send signal (CTS) to DTE CMOS 2.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 NOTE: If not used, almost all pins must be left disconnected. The only exceptions are the following pins: Pin 4.2.2.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 5. 5.1. Hardware Commands Turning ON the GE/GC864-QUAD V2 and GE864GPS To turn ON the GE/GC864-QUAD V2 AND GE864-GPS the pad ON# must be tied low for at least 1 second and then released. Pulse duration less than 1000ms should also start the power on procedure, but this is not guaranteed. When the power supply voltage is lower than 3.4V the pad ON# must be tied low for at least 4 seconds.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 TIP: To check if the device has powered on, the hardware line PWRMON should be monitored. After 1000ms the line raised up the device could be considered powered on. NOTE: When the power supply voltage is lower than 3.4V, to turn ON the module, the pad ON# must be tied low for at least 3 seconds. For example: 1- Let us assume you need to drive the ON# pad with a totem pole output from +1.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 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.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 NOTE: In order to avoid a back powering effect it is recommended to avoid having any HIGH logic level signal applied to the digital pins of the module when is powered OFF or during an ON/OFF transition. A flow chart showing the AT commands managing procedure is displayed below: Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 5.2. Turning OFF the GE/GC864-QUAD V2 and GE864 GPS The turning off of the device can be done in two ways: • via AT command (see Software User Guide AT#SHDN) • by tying low pin ON# Either ways, when the device issues a detach request to the network informing that the device will not be reachable any more. To turn OFF the module the pad ON# must be tied low for at least 2 seconds and then released.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 TIP: To check if the device has been powered off, the hardware line PWRMON must be monitored. The device is powered off when PWRMON goes low. NOTE: In order to avoid a back powering effect it is recommended to avoid having any HIGH logic level signal applied to the digital pins of the module when is powered OFF or during an ON/OFF transition. Reproduction forbidden without Telit Communications S.p.A.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 5.3. Hardware Unconditional Restart WARNING: The hardware unconditional Restart must not be used during normal operation of the device since it does not detach the device from the network. It shall be kept as an emergency exit procedure to be done in the rare case that the device gets stacked waiting for some network or SIM responses.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 TIP: The unconditional hardware Restart must always be implemented on the boards and must be used by the software as an emergency exit procedure. The following flow chart shows the proper RESET procedure: NOTE: In order to avoid a back powering effect it is recommended to avoid having any HIGH logic level signal applied to the digital pins of the module when is powered OFF or during an ON/OFF transition.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 Let us assume you need to drive the RESET# pad with a totem pole output from +1.8V up to 5V microcontroller This signal is internally pulled up so the pin can be left floating if not used. 5.4. Turning ON/OFF the GPS (only GE864-GPS) When GPS is not in GSM controlled mode (controlled by GSM) a specific sequence to power-up and shutdown it’s needed. 5.4.1.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 - Assert a pulse on the GPS_ON_OFF input every seconds until GPS starts indicating a high on GPS_WAKEUP output or generation of serial messages. The GPS starts after asserting a rising edge pulse on GPS_ON_OFF input and when high level persists for at least three cycles of RTC clock.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 6. Power Supply The power supply circuitry and board layout are a fundamental part of the product design and they strongly reflect on the product overall performances, hence read carefully the following requirements and guidelines for a proper design. 6.1. Power Supply Requirements Condition Nominal Supply Voltage Normal operating Voltage Range Extended operating Voltage Range Value 3.80 V 3.40 V 4.20 V 3.22 V – 4.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 6.2. Power Consumption The table below shows the power consumption of the GSM/GPRS section in different working modes (common for all the modules): GE\GC864-QUAD V2 and GE864-GPS (GPS OFF) Average Mode Mode description T (mA) h SWITCHED OFF Module supplied but Switched Off e Switched Off <62 uA IDLE mode G Normal mode: full functionality of the AT+CFUN=1 16.0 S module M Disabled TX and RX; module is not AT+CFUN=4 16.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 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, the relative current peaks can be as high as about 2A. Therefore the power supply has to be designed in order to withstand with these current peaks without big voltage drops; this means that both the electrical design and the board layout must be designed for this current flow.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 • When using a linear regulator, a proper heat sink shall be provided in order to dissipate the power generated. • A Bypass low ESR capacitor of adequate capacity must be provided in order to cut the current absorption peaks close to the module, 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.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 efficiency especially with the 2A peak current load represented by the module. • 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.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 6.3.1.3. 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 GE/GC864-QUAD V2 AND GE864-GPSmodules. The three cells Ni/Cd or Ni/MH 3,6 V Nom.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 WARNING: DON'T USE any Ni-Cd, Ni-MH, and Pb battery types directly connected with GE/GC864-QUAD V2 and GE864-GPS. Their use can lead to overvoltage on the module and damage it. USE ONLY Li-Ion battery types. • A Bypass low ESR capacitor of adequate capacity must be provided in order to cut the current absorption peaks, a 100µF tantalum capacitor is usually suited.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 Considering the very low current during idle, especially if 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.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 occur when the 2A current peaks are absorbed. Note that this is not made in order to save power loss but especially to avoid the voltage drops on the power line at the current peaks frequency of 216 Hz that will reflect on all the components connected to that supply, introducing the noise floor at the burst base frequency.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 • Total inductance: 55.20 nH • No voltage upper than supply voltage is present in the module. • No step-up converters are present in the module. GC864-QUAD V2 • Total capacity: 27.45 uF • Total inductance: 55.20 nH • No voltage upper than supply voltage is present in the module. • No step-up converters are present in the module. GE864-GPS • Total capacity: 33.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 7. Antenna The antenna(s) 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. 7.1. 7.1.1.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 used for those OEM modules must not exceed 3dBi gain for mobile and fixed operating configurations. 7.1.2. GE864-QUAD V2/GPS GSM Antenna – PCB line Guidelines When using the Telit GE864-QUAD V2 or GE864-GPS module, since there's no antenna connector on the module, the antenna must be connected to the GE864-QUAD V2 or GE864-GPS through the PCB with the antenna pad.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 • • • • 7.2.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 7.2.2. 0.3 mm 0.2 mm 6. 2 0.3 mm L1 FR4 1.1 mm L2 1.335 mm 0.035 mm 0.035 mm 0.035 mm m m 1.1 mm L3 Transmission line measurements HP8753E VNA (Full-2-port calibration) has been used in this measurement session.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 Line input impedance (in Smith Chart format, once the line has been terminated to 50 Ω load) is shown in the following figure: Insertion Loss of G-CPW line plus SMA connector is shown below: Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 7.2.3. 7.3. 7.3.1. GSM Antenna – Installation Guidelines • Install the antenna in a place covered by the GSM signal.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 NOTE: The absolute maximum rating for GPS RF input power is 10 dBm 7.3.2. 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. 7.3.3.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 • 7.3.5. If you do not have EM noisy devices around the PCB of GE864-GPS, use a strip-line on the superficial copper layer for the antenna line. The line attenuation will be lower than a buried one. GPS Antenna - Installation Guidelines • The GE864-GPS due to its characteristics of sensitivity is capable to perform a Fix inside the buildings. (In any case the sensitivity could be affected by the building characteristics i.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 8. 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 GE/GC864-QUAD V2 AND GE864-GPS interface circuits: Absolute Maximum Ratings – Not Functional Parameter Min Input level on -0.3V any digital pin when on Input voltage -0.3V on analog pins when on Max +3.1V +3.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 Current characteristics Level Typical Output Current 1mA Input Current 1uA Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 8.1. Reset Signal Signal RESET Function Reset I/O I Ball/Pin Number A2 on GE864-QUAD V2/GPS 54 on GC864-QUAD V2 RESET is used to reset the GE/GC864-QUAD V2 and GE864-GPS modules. Whenever this signal is pulled low, the GE/GC864-QUAD V2 and GE864-GPS are reset. When the device is reset it stops any operation.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 to permit to the internal circuitry the power on reset and under voltage lockout functions. Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 9. Serial Ports The serial port on the Telit GE864/GC864-QUAD V2 and GE864-GPS is the core of the interface between the module and OEM hardware. 2 serial ports are available on the GE864-QUAD/GC864-QUAD V2 modules: • • MODEM SERIAL PORT (Main, ASC0) MODEM SERIAL PORT 2 (Auxiliary, ASC1) While another serial port is available on the GE864-QUAD V2/GPS module: • 9.1.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 Operating Range – Interface levels (2.8V CMOS) GPS signals Level Min Max Min Max Input high level Input low level Output high level Output low level 2.1V 3.1V 1.82V 2.8V 0V 2.2V 0.5V 3.0V 0V 2.4V 0.98V 0V 0.35V 0.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 NOTE: According to V.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 BALL D11 F10 B3 C1 NAME TX_AUX RX_AUX GPIO4 GPIO1 9.2.2. NAME GPS_RX GPS_TX GPS_ON_OFF GPS_WAKE_UP BALL E10 F8 J4 G2 GPS Serial Port (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: BALL F8 E10 NAME GPS_TX GPS_RX DESCRIPTION GPS TX Data (NMEA) GPS RX Data (NMEA) TYPE CMOS 2.8V (GPS) CMOS 2.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 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: • 5 driver • 3 receiver NOTE: The digital input lines working at 2.8V CMOS have an absolute maximum input voltage of 3.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 An example of level translation circuitry of this kind is: The RS232 serial port lines are usually connected to a DB9 connector with the following layout: 9.4. 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.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 a possible translator circuit for a 5V TRANSMITTER/RECEIVER can be: TIP: Note that the TC7SZ07AE has open drain output; therefore the resistor R2 is mandatory.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 NOTE: In case of reprogramming of the module has to be considered the use of the RESET line to start correctly the activity. The preferable configuration is having an external supply for the buffer level translator. Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 10. Audio Section Overview The first Baseband chip was developed for the cellular phones, which needed two separated amplifiers both in RX and in TX section. A couple of amplifiers had to be used with internal audio transducers while the other couple of amplifiers had to be used with external audio transducers.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 10.2. Electrical Characteristics TIP: Being the microphone circuitry the more noise sensitive, its design and layout must be done with particular care. Both microphone paths are balanced and the OEM circuitry must be balanced designed to reduce the common mode noise typically generated on the ground plane. However the customer can use the unbalanced circuitry for its particular application. 10.2.1.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 10.2.2. Output Lines Characteristics TIP: We suggest driving the load differentially from both output drivers, thus the output swing will double and the need for the output coupling capacitor avoided. However if particular OEM application needs also a Single Ended circuitry can be implemented, but the output power will be reduced four times.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 11.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 Not all GPIO pads support all these three modes: 11.1.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 11.2. 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.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 11.5. Using the RFTXMON Output GPIO5 The GPIO5 pin, when configured as RFTXMON Output, is controlled by the GE/GC 864 QUAD V2 module and will rise when the transmitter is active and fall after the transmitter activity is completed.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 11.7. Using the Buzzer Output GPIO7 The GPIO7 pad, when configured as Buzzer Output, is controlled by the GE/GC 864 QUAD V2 module and will drive with appropriate square waves a Buzzer driver. This permits to your application to easily implement Buzzer feature with ringing tones or melody played at the call incoming, tone playing on SMS incoming or simply playing a tone or melody when needed by your application.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 11.8. Using the Temperature Monitor Function 11.8.1. 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. 11.8.2.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 11.9. Indication of Network Service Availability The STAT_LED pin status shows information on the network service availability and Call status. In the GE/GC864-QUAD V2 and GE864-GPSmodules, 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.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 11.10. 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. 11.11.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 12. 12.1. GPS Features (only GE864-GPS) GPS Control The GPS part of GE864-GPS can be driven by the GSM engine or by an external host. The circuital connections of the two configurations are showed in the subparagraphs below. 12.1.1. GSM Controlled Mode The GPS part can be controlled by GSM part through specific AT commands (refer to AT$GPSAT on AT Commands Reference Guide, 80000ST10025a).
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 12.2. PPS GPS Output 12.2.1. Description The Time Mark output GPS_PPS provides a one pulse-per-second signal to the user specific application. The GPS_PPS 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. 12.2.2.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 13. 13.1. DAC and ADC Converter DAC Converter 13.1.1. Description Ball GE864 Pin GC864 Signal I/O Function DAC Converter C7 40 DAC_OUT AO Digital/Analog converter output The GE/GC864-QUAD V2 AND GE864-GPSmodules provide one Digital to Analog Converter. The on board DAC is a 10-bit converter, able to generate an analogue value based a specific input in the range from 0 up to 1023.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 13.1.2. Enabling DAC The AT command below is available to use the DAC function: AT#DAC[=[,]] – scale factor of the integrated output voltage (0– 1023, with 10 bit precision), and it must be present if =1. Refer to SW User Guide or AT Commands Reference Guide for the full description of this function. Refer to SW User Guide or AT Commands Reference Guide for the full description of this function.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 13.2. ADC Converter 13.2.1. Description Ball GE864 Pin GC864 Signal I/O Function ADC Converters J11 37 ADC_IN1 AI Analog/Digital converter input H11 38 ADC_IN2 AI Analog/Digital converter input N/A* 39 ADC_IN3 AI Analog/Digital converter input The GE/GC864-QUAD V2 AND GE864-GPSmodules provide three* (only two in GE864-QUAD V2) Analog to Digital Converter. The on board A/D are 11-bit converter.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 14. 14.1. Assembly the GE/GC864-QUAD V2 AND GE864-GPS on the Board Assembly the GE864-QUAD V2 The Telit GE864-QUAD V2 have been designed in order to be compliant with the standard lead-free SMT process. Pin A1 Lead-free Alloy: Surface finishing Sn/Ag/Cu for all solder pads 14.1.1. Recommended foot print for the application Reproduction forbidden without Telit Communications S.p.A.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 NOTE: In order to easily rework the GE864-QUAD V2 module is suggested to consider on the application a 1.5mm inhibit area around the module. It is also suggested, as common rule for a SMT component, to avoid having a mechanical part of the application in direct contact with the module. 14.1.2. Stencil Stencil apertures layout can be the same of the recommended footprint (1:1), we suggest a thickness of stencil foil >120µm.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 It is recommended under the module following figure). no microvia without solder resist cover and no microvia around the pads (see Holes in pad are allowed only for blind holes and not for through holes. Recommendations for PCB pad surfaces: Finish Layer [µm] Electro-less Ni / Immersion Au thickness 3 –7 / 0.05 – 0.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 14.1.5.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 14.2. Assembly the GC864-QUAD V2 The position of the Molex board to board connector and the pin 1 are shown in the following picture. NOTE: The metal tabs present on GC864-QUAD V2 must be connected to GND. This module could not be processed with a reflow. Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 14.3. Debug of the GE/GC864-QUAD V2 AND GE864GPS in Production To test and debug the mounting of GC/GE864-QUAD V2 and GE864GPS , we strongly recommend to foreseen test pads on the host PCB, in order to check the connection between the GE/GC864-QUAD V2 and GE864-GPS itself and the application and to test the performance of the module connecting it with an external computer.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 15. 15.1. Packing system GE864-QUAD V2/GPS Packaging The GE864-QUAD V2/GPS is packaged on trays of 20 pieces each. This is especially suitable for the GE864-QUAD V2/GPS according to SMT processes for pick & place movement Section AA requirements. The size of the tray is: 329 x 176mm. Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 WARNING: These trays can withstand at the maximum temperature of 65° C. NOTE: All temperatures refer to topside of the package, measured on the package body surface 15.1.1. Moisture sensibility The level of moisture sensibility of GE864-QUAD V2/GPS is “3”, in according with standard IPC/JEDEC J-STD-020, take care all the relatives requirements for using this kind of components. 15.1.2.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 15.2. GE/GC864-QUAD V2 AND GE864-GPS Packaging The Telit GC864-QUAD V2 are packaged on trays of 20 pieces each. The size of the tray is: 329 x 176mm. WARNING: These trays can withstand at the maximum temperature of 65° C. Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 16. Conformity Assessment Issues The Telit GE/GC864-QUAD V2 and GE864-GPS has been assessed in order to satisfy the essential requirements of the R&TTE Directive 1999/05/EC (Radio Equipment & Telecommunications Terminal Equipments) to demonstrate the conformity against the harmonised standards with the final involvement of a Notified Body.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 17. SAFETY RECOMMANDATIONS READ CAREFULLY Be sure the use of this product is allowed in the country and in the environment required.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 The European Community provides some Directives for the electronic equipments introduced on the market. All the relevant information’s are available on the European Community website: http://ec.europa.eu/enterprise/sectors/rtte/documents/ The text of the Directive 99/05 regarding telecommunication equipments is available, while the applicable Directives (Low Voltage and EMC) are available at: http://ec.europa.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 IC Regulatory Requirements This device complies with Industry Canada license-exempt RSS standard(s). Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device.
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide 1vv0300915 Rev.2 – 2011-06-15 This radio transmitter GE/GC864-QUAD V2 and GE864-GPS has been approved by Industry Canada to operate with antennas with maximum permissible gain not exceeding 1,4dBi (850MHz) and 3.0dBi (1900MHz). Antenna types having a gain greater than the maximum gain indicated are strictly prohibited for use with this device.
