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 GE864-QUAD V2  Hardware User Guide 

1vv0300841 Rev.5 

–

 2017-05-11 

 

Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights 
Reserved. 

 

Page 30 of 77 

 

An example of linear regulator with 5V input is: 

 

 

 

 

 

 

 

 

 

 

 

6.3.1.2.

 

+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 GE864-QUAD V2. 

 

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.  

 

In any case the frequency and switching design 
selection is related to the application to be 
developed, due to the fact that the switching 
frequency could also generate EMC interferences. 

 

As far as car PB battery, the input voltage can rise 
up to 15.8V. This must be kept in mind when choosing 
components: all components in the power supply must 
withstand this voltage. 

 

A Bypass low ESR capacitor of adequate capacity must 
be provided, in order to cut the current absorption 
peaks. A 100

μ

F tantalum capacitor is typically used. 

Содержание GE864 DUAL V2

Страница 1: ...GE864 QUAD V2 Hardware User Guide 1vv0300841 Rev 5 2017 05 11...

Страница 2: ...AD V2 Hardware User Guide 1vv0300841 Rev 5 2017 05 11 Reproduction forbidden without Telit Communications S p A written authorization All Rights Reserved Page 2 of 77 APPLICABILITY TABLE PRODUCT GE864...

Страница 3: ...injury loss or damage of any kind incurred by use of or reliance upon the information Telit disclaims any and all responsibility for the application of the devices characterized in this document and n...

Страница 4: ...4 QUAD V2 20 5 2 TURNING OFF THE GE864 QUAD V2 23 5 3 HARDWARE UNCONDITIONAL RESTART 25 6 POWER SUPPLY 27 6 1 POWER SUPPLY REQUIREMENTS 27 6 2 POWER CONSUMPTION 28 6 3 GENERAL DESIGN RULES 29 6 3 1 El...

Страница 5: ...tion 60 11 8 2 Allowed GPIO 60 11 9 INDICATION OF NETWORK SERVICE AVAILABILITY 61 11 10 RTC BYPASS OUT 62 11 11 EXTERNAL SIM HOLDER IMPLEMENTATION 62 12 DAC AND ADC CONVERTER 63 12 1 DAC CONVERTER 63...

Страница 6: ...t technical support to report documentation errors and to order manuals contact Telit Technical Support Center TTSC at TS EMEA telit com TS NORTHAMERICA telit com TS LATINAMERICA telit com TS APAC tel...

Страница 7: ...ower supply Power supply requirements and general design rules Chapter 7 Antenna The antenna connection and board layout design are the most important parts in the full product design Chapter 8 Logic...

Страница 8: ...he module if these points are not followed the module and end user equipment may fail or malfunction Tip or Information Provides advice and suggestions that may be useful when integrating the module A...

Страница 9: ...Par 3 1 Reconfiguration of Telit GPIOs Added Service on TRACE Balls Updated BGA Ball Layout Par 4 1 Turning ON Added Note Par 4 2 Turning OFF Modified Note Par 5 2 Power consumption Updated Table Par...

Страница 10: ...ations shall not be considered mandatory instead the information given shall be used as a guide and a starting point for properly developing your product with the Telit GE864 QUAD V2 module NOTICE EN...

Страница 11: ...Reproduction forbidden without Telit Communications S p A written authorization All Rights Reserved Page 11 of 77 3 GE864 QUAD V2 Mechanical Dimensions The Telit GE864 QUAD V2 module overall dimensio...

Страница 12: ...io H10 EAR_HF AO Handsfree ear output phase Audio SIM card interface C10 SIMCLK O External SIM signal Clock 1 8 3V C11 SIMIN I External SIM signal Presence active low Pull up 47K 1 8 3V D4 SIMVCC Exte...

Страница 13: ...The pulse to be sent to the GE864 QUAD V2 must be equal or greater than 1 second Pull up 47K Pull up to VBATT L8 PWRMON O PWRMON CMOS 2 8V L4 GSM Antenna O Antenna output 50 ohm RF Telit GPIO DVI C1 G...

Страница 14: ...ower K5 GND Ground Power K6 GND Ground Power L1 GND Ground Power L2 GND Ground Power L3 GND Ground Power L6 GND Ground Power L11 GND Ground Power RESERVED A3 Reserved A4 Reserved A5 Reserved A6 Reserv...

Страница 15: ...served G1 Reserved G2 Reserved G3 Reserved G4 Reserved G5 Reserved G6 Reserved G7 Reserved G11 Reserved H6 Reserved H7 Reserved J4 Reserved J6 Reserved J7 Reserved K9 Reserved K10 Reserved L5 Reserved...

Страница 16: ...GE864 QUAD V2 Hardware User Guide 1vv0300841 Rev 5 2017 05 11 Reproduction forbidden without Telit Communications S p A written authorization All Rights Reserved Page 16 of 77...

Страница 17: ...n J1 J2 K1 K2 VBATT Main power supply A1 A11 D6 F1 F11 H1 H2 J3 K3 K4 K5 K6 L1 L2 L3 L6 L11 GND Ground E7 C103 TXD Serial data input TXD from DTE H8 C104 RXD Serial data output to DTE F7 C105 RTS Inpu...

Страница 18: ...PIO_03 VRTC GND VBATT VBATT GND 3 GPIO_04 TX_DISAB LE _ GPIO_10 DVI_TX GND GND GND 4 SIMVCC SERVICE GND GSM Antenna 5 GPIO_06 ALARM DVI_WA0 ON_OFF GND 6 C125 RING GND GPIO_02 JDR C106 CTS GND GND 7 C1...

Страница 19: ...ns S p A written authorization All Rights Reserved Page 19 of 77 AUDIO Signals balls SIM CARD interface balls AUX UART SERVICE Signals balls Prog data Hw Flow Control signals balls ADC signals balls M...

Страница 20: ...current that can be drained from the ON pad is 0 1 mA A simple circuit to do it is NOTE Don t use any pull up resistor on the ON line it is internally pulled up Using pull up resistor may bring to lat...

Страница 21: ...d Page 21 of 77 A flow chart showing the proper turn on procedure is displayed below NOTE In order to avoid a back powering effect it is recommended to avoid having any HIGH logic level signal applied...

Страница 22: ...ev 5 2017 05 11 Reproduction forbidden without Telit Communications S p A written authorization All Rights Reserved Page 22 of 77 For example 1 Let s assume you need to drive the ON pad with a totem p...

Страница 23: ...unications S p A written authorization All Rights Reserved Page 23 of 77 2 Let s assume you need to drive the ON pad directly with an ON OFF button 5 2 Turning OFF the GE864 QUAD V2 The turning off of...

Страница 24: ...at 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 The same circuitry and timing for the power on shall be used Th...

Страница 25: ...ansition 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 sh...

Страница 26: ...power regulator and improper functioning of the module The line RESET must be connected only in open collector configuration TIP The unconditional hardware Restart must always be implemented on the bo...

Страница 27: ...dition Value Nominal Supply Voltage 3 80 V Normal operating Voltage Range 3 40 V 4 20 V Extended operating Voltage Range 3 22 V 4 50 V TIP The supply voltage is directly measured between VBATT and GND...

Страница 28: ...n the ground and the supply this will reflect on all the audio paths producing an audible annoying noise at 216 Hz if the voltage drop during the peak current absorption is too much then the device ma...

Страница 29: ...ry 6 3 1 1 5V input Source Power Supply Design Guidelines The desired output for the power supply is 3 8V hence there is no big difference between the input source and the desired output A linear regu...

Страница 30: ...ented by the GE864 QUAD V2 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 all...

Страница 31: ...a tantalum one is rated at least 10V As far as car applications a spike protection diode must be inserted close to the power input in order to clean the supply from spikes A protection diode can be i...

Страница 32: ...D V2 and damage it WARNING DON T USE any Ni Cd Ni MH and Pb battery types directly connected with GE864 QUAD V2 Their use can lead to overvoltage on the GE864 QUAD V2 and damage it USE ONLY Li Ion bat...

Страница 33: ...s possible to consider from the thermal point of view that the device absorbs current significantly only during calls If we assume that the device stays into transmission for short periods of time let...

Страница 34: ...o the input connector where the power source is drained The PCB traces from the input connector to the power regulator IC must be wide enough to ensure no voltage drops occur when the 2A current peaks...

Страница 35: ...The power supply input cables must be kept separate from noise sensitive lines such as microphone earphone cables 6 3 4 Parameters for ATEX Applications In order to integrate the Telit s GE864 QUAD V2...

Страница 36: ...ency range Depending by frequency band s provided by the network operator the customer shall use the most suitable antenna for that those band s Bandwidth 70 MHz in GSM850 80 MHz in GSM900 170 MHz in...

Страница 37: ...transmitter End Users must be provided with transmitter operation conditions for satisfying RF exposure compliance OEM integrators must ensure that the end user has no manual instructions to remove or...

Страница 38: ...nd planes or shield it with a metal frame cover If you don t have EM noisy devices around the PCB of GE864 QUAD V2 by using a strip line on the superficial copper layer for the antenna line the line a...

Страница 39: ...Telit GE864 QUAD V2 interface circuits Absolute Maximum Ratings Not Functional Parameter Min Max Input level on any digital pin when on 0 3V 3 1V Input voltage on analog pins when on 0 3V 3 0 V Opera...

Страница 40: ...Hardware User Guide 1vv0300841 Rev 5 2017 05 11 Reproduction forbidden without Telit Communications S p A written authorization All Rights Reserved Page 40 of 77 Level Typical Output Current 1mA Inpu...

Страница 41: ...off For this reason the Reset signal must not be used to normally shutting down the device but only as an emergency exit in the rare case the device remains stuck waiting for some network response The...

Страница 42: ...1vv0300841 Rev 5 2017 05 11 Reproduction forbidden without Telit Communications S p A written authorization All Rights Reserved Page 42 of 77 to permit to the internal circuitry the power on reset an...

Страница 43: ...al 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 ma...

Страница 44: ...Y condition 5 GND A1 F1 H1 L1 H2 L2 J3 K3 Ground ground 6 DSR dsr_uart E11 Data Set Ready Output from the GE864 QUAD V2 that indicates the module is ready 7 RTS rts_uart F7 Request to Send Input to th...

Страница 45: ...g for a lower voltage multiplying ratio on the level translator Note that the negative signal voltage must be less than 0V and hence some sort of level translation is always required The simplest way...

Страница 46: ...able to do in circuit reprogramming of the GE864 firmware the serial port on the Telit GE864 shall be available for translation into RS232 and either it s controlling device shall be placed into tris...

Страница 47: ...vv0300841 Rev 5 2017 05 11 Reproduction forbidden without Telit Communications S p A written authorization All Rights Reserved Page 47 of 77 The RS232 serial port lines are usually connected to a DB9...

Страница 48: ...ses 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...

Страница 49: ...p internally so an external pull up resistor of 47K may be required Care must be taken to avoid latch up on the GE864 QUAD V2 and the use of this output line to power electronic devices shall be avoid...

Страница 50: ...e original importance In other words this distinction is not necessary being the performances between the two blocks like the same Only if the customer needs higher output power to drive the speaker h...

Страница 51: ...GE864 QUAD V2 Hardware User Guide 1vv0300841 Rev 5 2017 05 11 Reproduction forbidden without Telit Communications S p A written authorization All Rights Reserved Page 51 of 77...

Страница 52: ...1 Input Lines Characteristics MIC_MT and MIC_HF differential microphone paths Line Coupling AC Line Type Balanced Differential input voltage 1 03Vpp Mic G 0dB Gain steps 7 Gain increment 6dB per step...

Страница 53: ...plane and to get the maximum power output from the device low resistance tracks WARNING The loads are directly connected to the amplifier outputs when in Differential configuration through a capacitor...

Страница 54: ...esistance 16 12dBFS internal output resistance 4 typical signal bandwidth 150 4000 Hz 3 dB maximal full scale differential output voltage 3 7 Vpp typical Rload open circuit differential output voltage...

Страница 55: ...faul t state ON_OFF state During Reset state Note C1 TGPIO_01 I O GPIO01 Configurable GPIO CMOS 2 8V 1uA 1mA INPUT 0 0 E6 TGPIO_02 JDR I O GPIO02 Configurable GPIO CMOS 2 8V 1uA 1mA INPUT 0 0 Alternat...

Страница 56: ...ion GPIO6 supports all three modes and can be input output alarm output Alternate function GPIO7 supports all three modes and can be input output buzzer output Alternate function 11 1 GPIO Logic Level...

Страница 57: ...an open collector transistor with a 47K pull up to 2 8V this pull up must be switched off when the module is in off condition 11 3 Using a GPIO Pad as OUTPUT The GPIO pads when used as outputs can dr...

Страница 58: ...m 500ms to 1s after last TX burst 2 Active during all the TX activity The GPIO is following the TX bursts Please refer to the AT User interface manual for additional information on how to enable this...

Страница 59: ...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 inc...

Страница 60: ...I O GPIO01 Configurable GPIO CMOS 2 8V 1uA 1mA INPUT 0 0 E6 TGPIO_02 JDR I O GPIO02 Configurable GPIO CMOS 2 8V 1uA 1mA INPUT 0 0 Alternate function JDR C2 TGPIO_03 I O GPIO03 Configurable GPIO CMOS...

Страница 61: ...shows information on the network service availability and Call status In the GE864 QUAD V2 modules the STAT_LED usually needs an external transistor to drive an external LED Therefore the status indi...

Страница 62: ...me 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 adde...

Страница 63: ...provides one Digital to Analog Converter 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 However an external low pass fil...

Страница 64: ...AT DAC enable value value scale factor of the integrated output voltage 0 1023 with 10 bit precision and it must be present if enable 1 Refer to SW User Guide or AT Commands Reference Guide for the fu...

Страница 65: ...erter input A D The GE864 QUAD V2 module provides three Analog to Digital Converter 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...

Страница 66: ...ion these pads include but are not limited to the following signals Ball Signal Function J1 J2 K1 K2 VBATT Main power supply A1 A11 D6 F1 F11 H1 H2 J3 K3 K4 K5 K6 L1 L2 L3 L6 L11 GND Ground E7 C103 TX...

Страница 67: ...Communications S p A written authorization All Rights Reserved Page 67 of 77 13 Assembly the GE864 QUAD V2 on the Board The Telit GE864 QUAD V2 have been designed in order to be compliant with the st...

Страница 68: ...eserved Page 68 of 77 13 1 Recommended foot print for the application N O T E In order to easily rework the GE864 QUAD V2 module is suggested to consider on the application a 1 5mm inhibit area around...

Страница 69: ...the recommended footprint 1 1 we suggest a thickness of stencil foil 120 m 13 3 PCB pad design Non solder mask defined NSMD type is recommended for the solder pads on the PCB Recommendations for PCB p...

Страница 70: ...s Ni Immersion Au 3 7 0 05 0 15 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 sh...

Страница 71: ...ofile Profile Feature Pb Free Assembly Average ramp up rate TL to TP 3 C second max Preheat Temperature Min Tsmin Temperature Max Tsmax Time min to max ts 150 C 200 C 60 180 seconds Tsmax to TL Ramp u...

Страница 72: ...eproduction forbidden without Telit Communications S p A written authorization All Rights Reserved Page 72 of 77 NOTE All temperatures refer to topside of the package measured on the package body surf...

Страница 73: ...ations S p A written authorization All Rights Reserved Page 73 of 77 14 Packing system The GE864 QUAD V2 are packaged on trays of 20 pieces each This is especially suitable for the GE864 QUAD V2 accor...

Страница 74: ...of 77 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 14 1 Moisture sensibility The leve...

Страница 75: ...QUAD V2 Hardware User Guide 1vv0300841 Rev 5 2017 05 11 Reproduction forbidden without Telit Communications S p A written authorization All Rights Reserved Page 75 of 77 14 2 GE864 orientation on the...

Страница 76: ...tage source and the wiring has to be conforming to the security and fire prevention regulations The product has to be handled with care avoiding any contact with the pins because electrostatic dischar...

Страница 77: ...ovides some Directives for the radio equipment introduced on the market All the relevant information s are available on the European Community website https ec europa eu growth single market european...

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