Telit Communications S p A GE864G2 Quad Band GSM/ GPRS Module User Manual

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GE/GC864-QUAD V2 and GE864-GPS
Hardware User Guide
1vv0300915 Rev.4 – 2011-08-24
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
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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.
Telit makes every effort to ensure the quality of the
information it makes available. Notwithstanding the foregoing,
Telit does not make any warranty as to the information
contained herein, and does not accept any liability for any
injury, loss or damage of any kind incurred by use of or
reliance upon the information.
Telit disclaims any and all responsibility for
of the devices characterized in this document,
the application of the device must comply with
standards of the applicable country, and where
with the relevant wiring rules.
the application
and notes that
the safety
applicable,
Telit reserves the right to make modifications, additions and
deletions to this document due to typographical errors,
inaccurate information, or improvements to programs and/or
equipment at any time and without notice.
Such changes will, nevertheless be incorporated into new
editions of this document.
Copyright: Transmittal, reproduction, dissemination and/or
editing of this document as well as utilization of its
contents and communication thereof to others without express
authorization are prohibited. Offenders will be held liable
for payment of damages. All rights are reserved.
Copyright © Telit Communications SpA 2011©.
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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 .................................................................................................................................................................. 7
AUDIENCE ............................................................................................................................................................ 7
CONTACT INFORMATION, SUPPORT...................................................................................................................... 7
DOCUMENT ORGANIZATION ................................................................................................................................ 8
TEXT CONVENTIONS ............................................................................................................................................ 9
RELATED DOCUMENTS ........................................................................................................................................ 9
DOCUMENT HISTORY ......................................................................................................................................... 10
2.
OVERVIEW ................................................................. 11
3.
GE864-QUAD V2/GPS MECHANICAL DIMENSIONS .................................. 12
3.1.
3.2.
3.3.
3.4.
4.
GE864-QUAD V2/GPS .................................................................................................................................... 12
GC864-QUAD V2............................................................................................................................................. 13
MECHANICAL VIEW OF TELIT GC864-QUAD V2 WITH SIM HOLDER .............................................................. 14
GC864-QUAD V2 MODULE CONNECTIONS ...................................................................................................... 14
ELECTRICAL CONNECTIONS ................................................... 15
4.1.
GE864-QUAD V2/GPS .................................................................................................................................... 15
4.1.1.
PIN-OUT .................................................................................................................................................. 15
4.1.2.
BGA Balls Layout ..................................................................................................................................... 20
4.2.
GC864-QUAD V2............................................................................................................................................. 22
4.2.1.
PIN-OUT .................................................................................................................................................. 22
4.2.2.
GC864-QUAD V2 Antenna Connector ..................................................................................................... 25
5.
HARDWARE COMMANDS ........................................................ 26
5.1.
TURNING ON THE GE/GC864-QUAD V2 AND GE864-GPS ............................................................................. 26
5.2.
TURNING OFF THE GE/GC864-QUAD V2 AND GE864 GPS ............................................................................ 30
5.3.
HARDWARE UNCONDITIONAL RESTART ............................................................................................................ 32
5.4.
TURNING ON/OFF THE GPS (ONLY GE864-GPS) ............................................................................................. 34
5.4.1.
GPS Power-up .......................................................................................................................................... 34
5.4.2.
GPS Shutdown .......................................................................................................................................... 35
6.
POWER SUPPLY ............................................................. 36
6.1.
POWER SUPPLY REQUIREMENTS ........................................................................................................................ 36
6.2.
POWER CONSUMPTION ....................................................................................................................................... 37
6.3.
GENERAL DESIGN RULES ................................................................................................................................... 38
6.3.1.
Electrical Design Guidelines .................................................................................................................... 38
6.3.2.
Thermal Design Guidelines ...................................................................................................................... 42
6.3.3.
Power Supply PCB Layout Guidelines ..................................................................................................... 43
6.3.4.
Parameters for ATEX Applications .......................................................................................................... 44
7.
ANTENNA .................................................................. 46
7.1.
GSM ANTENNA (GE864-QUAD V2/GPS AND GC864-QUAD V2) ................................................................. 46
7.1.1.
GSM Antenna Requirements..................................................................................................................... 46
7.1.2.
GE864-QUAD V2/GPS GSM Antenna – PCB line Guidelines ................................................................ 47
7.1.3.
GSM Antenna – Installation Guidelines ................................................................................................... 51
7.2.
GPS ANTENNA (GE864-GPS ONLY).................................................................................................................. 51
7.2.1.
GPS Antenna Requirements ..................................................................................................................... 51
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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 ....................................................................................................... 52
GPS Antenna - Installation Guidelines .................................................................................................... 53
LOGIC LEVEL SPECIFICATIONS ............................................... 54
RESET SIGNAL ................................................................................................................................................... 56
SERIAL PORTS ............................................................. 58
9.1.
MODEM SERIAL PORT.................................................................................................................................. 58
9.2.
GE864-GPS SECONDARY PORTS ....................................................................................................................... 60
9.2.1.
Modem Serial Port 2 (GPS Control) ........................................................................................................ 60
9.2.2.
GPS Serial Port (NMEA).......................................................................................................................... 61
9.3.
RS232 LEVEL TRANSLATION ............................................................................................................................. 61
9.4.
5V UART LEVEL TRANSLATION ....................................................................................................................... 63
10.
AUDIO SECTION OVERVIEW ................................................... 66
10.1. SELECTION MODE............................................................................................................................................... 66
10.2. ELECTRICAL CHARACTERISTICS ........................................................................................................................ 68
10.2.1.
Input Lines Characteristics ...................................................................................................................... 68
10.2.2.
Output Lines Characteristics .................................................................................................................... 69
11.
GENERAL PURPOSE I/O ...................................................... 71
11.1. GPIO LOGIC LEVELS ......................................................................................................................................... 72
11.2. USING A GPIO PAD AS INPUT .......................................................................................................................... 73
11.3. USING A GPIO PAD AS OUTPUT ...................................................................................................................... 73
11.4. USING THE RF TRANSMISSION CONTROL GPIO4 .............................................................................................. 73
11.5. USING THE RFTXMON OUTPUT GPIO5 ........................................................................................................... 74
11.6. USING THE ALARM OUTPUT GPIO6 .................................................................................................................. 74
11.7. USING THE BUZZER OUTPUT GPIO7 .................................................................................................................. 75
11.8. USING THE TEMPERATURE MONITOR FUNCTION ............................................................................................... 76
11.8.1.
Short Description ..................................................................................................................................... 76
11.8.2.
Allowed GPIO .......................................................................................................................................... 76
11.9. INDICATION OF NETWORK SERVICE AVAILABILITY ........................................................................................... 77
11.10.
RTC BYPASS OUT ......................................................................................................................................... 78
11.11.
EXTERNAL SIM HOLDER IMPLEMENTATION ................................................................................................. 78
11.12.
VAUX POWER OUTPUT (ONLY FOR GE864-GPS)......................................................................................... 78
12.
GPS FEATURES (ONLY GE864-GPS) ............................................ 79
12.1. GPS CONTROL ................................................................................................................................................... 79
12.1.1.
Controlled Mode....................................................................................................................................... 79
12.1.2.
Stand Alone Mode .................................................................................................................................... 79
12.2. PPS GPS OUTPUT .............................................................................................................................................. 80
12.2.1.
Description ............................................................................................................................................... 80
12.2.2.
Pulse Characteristics ............................................................................................................................... 80
13.
DAC AND ADC CONVERTER .................................................... 81
13.1. DAC CONVERTER .............................................................................................................................................. 81
13.1.1.
Description ............................................................................................................................................... 81
13.1.2.
Enabling DAC .......................................................................................................................................... 82
13.1.3.
Low Pass Filter Example.......................................................................................................................... 82
13.2. ADC CONVERTER .............................................................................................................................................. 83
13.2.1.
Description ............................................................................................................................................... 83
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GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide
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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.
Recommended foot print for the application ............................................................................................ 84
14.1.2.
Stencil ....................................................................................................................................................... 85
14.1.3.
PCB pad design ........................................................................................................................................ 85
14.1.4.
Solder paste .............................................................................................................................................. 86
14.1.5.
GE864-QUAD V2/GPS Solder reflow ...................................................................................................... 87
14.2. ASSEMBLY THE GC864-QUAD V2 ................................................................................................................... 88
14.3. DEBUG OF THE GE/GC864-QUAD V2 AND GE864-GPS IN PRODUCTION ...................................................... 89
15.
PACKING SYSTEM ........................................................... 90
15.1. GE864-QUAD V2/GPS PACKAGING ................................................................................................................ 90
15.1.1.
Moisture sensibility .................................................................................................................................. 91
15.1.2.
GE864 orientation on the tray .................................................................................................................. 91
15.2. GE/GC864-QUAD V2 AND GE864-GPS PACKAGING .................................................................................... 92
16.
CONFORMITY ASSESSMENT ISSUES ............................................. 93
17.
SAFETY RECOMMENDATIONS ......................... ERROR! BOOKMARK NOT DEFINED.
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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.
Contact Information, Support
For general contact, 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@telit.com
Alternatively, use:
http://www.telit.com/en/products/technical-supportcenter/contact.php
For detailed information about where you can buy the Telit
modules or for recommendations on accessories and components
visit:
http://www.telit.com
To register for product news and announcements or for product
questions contact Telit’s Technical Support Center (TTSC).
Our aim is to make this guide as helpful as possible. Keep us
informed of your comments and suggestions for improvements.
Telit appreciates feedback from the users of our information.
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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.
Chapter 5: “Hardware Commands” How to operate on the module
via hardware.
Chapter 6: “Power 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 Level specifications” Specific values
adopted in the implementation of logic levels for the modules.
Chapter 9: “Serial ports” The serial port on the modules is
the core of the interface between the module and OEM hardware
Chapter 10: “Audio Section overview” Refers to the audio
blocks of the Base Band Chip of the modules.
Chapter 11: “General Purpose I/O” How the general purpose I/O
pads can be configured.
Chapter 12: “GPS Features (GE864-GPS only)”
Chapter 13: “DAC and ADC Converter” How the DAC and ADC pads can
be configured.
Chapter 14: “Mounting the GE/GC864-QUAD V2 AND GE864-GPS on the
application board” Recommendations and specifics on how to
mount the modules on the user’s board.
Chapter 15: “Packing System”: deals about the GE/GC864 family
packaging suystems
Chapter 16: “Conformity Assessment Issues”: refer the
compliance with reference standards
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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.
Tip or Information – Provides advice and suggestions that may
be useful when integrating the module.
All dates are in ISO 8601 format, i.e. YYYY-MM-DD.
1.6.
Related Documents
•
Telit’s GSM/GPRS Family Software User Guide, 1vv0300784
•
Audio settings application note , 80000NT10007a
•
Digital voice Interface Application Note, 80000NT10004a
•
Product description, 80331ST10074a
•
SIM Holder Design Guides, 80000NT10001a
•
AT Commands Reference Guide, 80000ST10025a
•
Telit EVK2 User Guide, 1vv0300704
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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 “11.12 VAUX Power Output (only for GE864-GPS)” paragraph
Added “12.
GPS Features (GE864-GPS only)” Chapter
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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. The wrong solutions to be
avoided shall be considered as mandatory, while the suggested
hardware configurations 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/GPS and/or GC864-QUAD V2 modules. For
further hardware details that may not be explained in this
document refer to the Telit GE864-QUAD V2/GPS and GC864-QUAD
V2 Product Description document where all the hardware
information is reported.
NOTICE:
(EN) The integration of the GE864-QUAD V2/GPS and GC864-QUAD
V2 cellular modules within user application shall be done
according to the design rules described in this manual.
The information presented in this document is believed to be
accurate and reliable. However, no responsibility is assumed
by Telit Communications S.p.A. for its use, or any
infringement of patents or other rights of third parties which
may result from its use. No license is granted by implication
or otherwise under any patent rights of Telit Communications
S.p.A. other than for circuitry embodied in Telit products.
This document is subject to change without notice.
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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
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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
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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
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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
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.
level 50mVrms
Handset earphone signal output, phase +
Handset mic.signal input; phase+, nom.
level 50mVrms
Handsfree mic.input; phase -, nom. level
3mVrms
Handsfree ear output, phase -
H9
EAR_MT-
AO
Handset earphone signal output, phase -
Audio
H10
EAR_HF+
AO
Handsfree ear output, phase +
Audio
100K
CMOS 2.8V
Audio
Audio
Audio
Audio
Audio
Audio
SIM card interface
C10
SIMCLK
C11
SIMIN
D4
SIMVCC
External SIM signal – Clock
External SIM signal - Presence (active
low)
External SIM signal – Power supply for
the SIM
Pull up
47K
Pull up
4.7K
D10
SIMIO
I/O
External SIM signal - Data I/O
E9
SIMRST
External SIM signal – Reset
1,8 / 3V
1,8 / 3V
1,8 / 3V
1,8 / 3V
1,8 / 3V
Auxiliary UART/Trace
D11
F10
H4
TX_AUX
RX_AUX
SERVICE
B6
C125/RING
B7
C108/DTR
D9
C109/DCD
Auxiliary
DTE)
Auxiliary
DTE)
UART
UART
(TX
(RX
Data
Data
to
from
Service pin shall be used to upgrade
the module from ASC1 (RX_TRACE,
TX_TRACE). The pin shall be tied low
to enable the feature only in case
of a SW Update activity. It is
required, for debug purpose, to be
connected
to
test
pad
on
the
final
application.
Prog. / Data + HW Flow Control
Output for Ring indicator signal (RI) to
DTE
Input for Data terminal ready signal
(DTR) from DTE
Output for Data carrier detect signal
(DCD) to DTE
CMOS 2.8V
CMOS 2.8V
CMOS 2.8V
CMOS 2.8V
CMOS 2.8V
CMOS 2.8V
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GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide
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Ball
Signal
I/O
E7
C103/TXD
E11
C107/DSR
F7
C105/RTS
F6
C106/CTS
H8
C104/RXD
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 2.8V
DAC and ADC
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 converter input
A/D
Miscellaneous Functions
A2
RESET#
Reset input
D8
STAT_LED
Status indicator led
CMOS 1.8V
E2
VRTC
AO
VRTC
Power
J5
ON_OFF#
Input command for switching power ON or
OFF (toggle command). The pulse to be
sent to the GE864-QUAD V2 must be equal
or greater than 1 second.
L8
PWRMON
PWRMON
CMOS 2.8V
L4
GSM Antenna
Antenna output – 50 ohm
RF
D5
VAUX
AO
Auxiliary 2.8V Output
Power
(1)
Pull up
47K
Pull up to VBATT
Telit GPIO / DVI
C1
GPIO_01
I/O
GPIO_01
CMOS 2.8V
E6
GPIO_02 / JDR
I/O
GPIO_02 / JDR
CMOS 2.8V
C2
GPIO_03
GPIO_04 /
TX_DISABLE
I/O
GPIO_03
CMOS 2.8V
I/O
GPIO_04 / TX_DISABLE
CMOS 2.8V
K8
GPIO_05 / RFTXMON
I/O
B5
GPIO_06 / ALARM
I/O
Telit
GPIO05
Configurable
GPIO
Transmitter ON monitor
Telit GPIO06 Configurable GPIO / ALARM
L9
GPIO_07 / BUZZER
I/O
Telit GPIO07 Configurable GPIO / Buzzer
CMOS 2.8V
K11
GPIO_08
I/O
GPIO_08
CMOS 2.8V
C9
GPIO_09
I/O
GPIO_09
CMOS 2.8V
H3
GPIO_10 / DVI_TX
I/O
GPIO_10 / DVI_TX- DVI audio*
CMOS 2.8V
K7
DVI_RX
I/O
DVI_RX - DVI audio*
CMOS 2.8V
D7
DVI_CLK
I/O
DVI_CLK - DVI audio*
CMOS 2.8V
H5
DVI_WA0
I/O
DVI_WA0 - DVI audio*
CMOS 2.8V
B3
GPS
(1)
CMOS 2.8V
CMOS 2.8V
(only for GE864-GPS)
A7
GPS_EXT_LNA_EN(1)
External LNA Enable
CMOS 1.8V (GPS)
C8
GPS_PPS(1)
Pulse Per Second
CMOS 1.8V (GPS)
E10
GPS_RX(1)
Serial Data Input
CMOS 2.8V (GPS)
F8
GPS_TX
(1)
Serial Data Output
CMOS 2.8V (GPS)
G2
GPS_WAKEUP(1)
Wake up output
CMOS 2.8V (GPS)
J4
GPS_ON_OFF(1)
GPS Power Control
CMOS 1.8V (GPS)
A10
GPS Antenna(1)
Antenna output – 50 ohm
RF
Power Supply
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Ball
Signal
I/O
Function
Internal
PULL UP
Type
J1
VBATT
Main power supply
Power
K1
VBATT
Main power supply
Power
J2
VBATT
Main power supply
Power
K2
VBATT
Main power supply
Power
A1
GND
Ground
Power
A11
GND
Ground
Power
D6
GND
Ground
Power
F1
GND
Ground
Power
F11
GND
Ground
Power
H1
GND
Ground
Power
H2
GND
Ground
Power
J3
GND
Ground
Power
K3
GND
Ground
Power
K4
GND
Ground
Power
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
A8
GND(1)
Ground(1)
Power
B8
GND(1)
Ground(1)
Power
B9
GND(1)
Ground(1)
Power
B10
GND(1)
Ground(1)
Power
B11
GND(1)
Ground(1)
Power
RESERVED
A3
A4
Reserved
Reserved
A5
Reserved
A6
Reserved
A9
Reserved
B1
Reserved
B2
Reserved
B4
Reserved
C3
Reserved
C4
Reserved
C5(2) -
Reserved(2)
C6
Reserved
D1
Reserved
D2
Reserved
D3
Reserved
E1
Reserved
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Reserved.
Page 17 of 97
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide
1vv0300915 Rev.2 – 2011-06-15
Ball
Signal
I/O
Function
E3
Reserved
E4
Reserved
E5
Reserved
E8
Reserved
F2
Reserved
F3
Reserved
F4
Reserved
F5
Reserved
G1
Reserved
G3
Reserved
G4
Reserved
G5
Reserved
G6(2) -
Reserved(2)
G7
Reserved
G11
Reserved
H6
Reserved
H7
Reserved
J6
Reserved
J7
Reserved
K9
Reserved
K10
Reserved
L5
Reserved
L7
Reserved
L10
Reserved
Internal
PULL UP
Type
* Ref. to Digital Voice Interface Application Note
80000NT10004a.
(1) Available only on GE864-GPS (in case of GE864-QUAD it has
to be considered RESERVED
NOTE:
The GE864-QUAD V2/GPS Modules has one DVI port on the system.
NOTE:
Reserved pins must not be connected.
(2) Only for GE864-GPS connect the G6 ball (although declared
reserved) must be connected to ground (suggested through a 0
ohm resistor) and C6 ball (although declared reserved) must be
connected to VAUX (Ball D5) through a pull up resistor (e.g.
47K).
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Page 18 of 97
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. The
only exceptions are the following pins:
Ball
Signal
Function
J1, J2, K1, K2
VBATT
Main power supply
A1, A8(1), A11, B8(1),
B9(1), B10(1), B11(1), 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
Input for Request to send signal (RTS) from DTE
J5
ON/OFF#
Input command for switching power ON or OFF
(toggle command).
A2
RESET#
Reset input
F10
RX_TRACE
RX Data for debug monitor
D11
TX_TRACE
TX Data for debug monitor
H4
SERVICE
SERVICE connection
B7
DTR
Input for Data terminal ready signal (DTR) from
DTE
J4(1)
GPS_ON_OFF
GPS Power Control
(1)
GPS_WAKEUP
GPS Wake up output
GPS_RX
GPS Serial data input
GPS_TX
GPS Serial data output
G2
E10
(1)
(1)
F8
(1) Available only on GE864-GPS (in case of GE864-QUAD V2 it has to
be considered RESERVED)
NOTE:
Only for GE864-GPS, do not leave the GPS_ON_OFF (ball J4)
input pin floating. It’s suggested to connect a pull-down
(e.g.: 100k).
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Page 19 of 97
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide
1vv0300915 Rev.2 – 2011-06-15
4.1.2. BGA Balls Layout
TOP VIEW
GND
GPIO_01
GND
GND
VBATT
VBATT
GND
RESET*
GPIO_03
VRTC
GPS_WAKE
UP
GND
VBATT
VBATT
GND
GPIO_04
TX_DISAB
LE
GPIO_10
/ DVI_TX
GND
GND
GND
--
SIMVCC
SERVICE
GPS_ON_O
FF
GND
GSM
Antenna
GPIO_06
/ ALARM
VAUX
DVI_WA0
ON_OFF*
GND
C125
RING
GND
GPIO_02
/ JDR
C106
CTS
GND
GND
C108
DTR
DAC_OUT
DVI_CLK
C103
TXD
C105
RTS
DVI_RX
STAD_
LED
GPS_TX
MIC_HF+
C104
RXD
MIC_MT+
GPIO_05
RFTXMON
PWRMON
AXE
MIC_MT-
EAR_MT-
MIC_HF-
GPIO_07
/ BUZZER
RX_AUX
EAR_MT+
EAR_HF+
EAR_HF-
GND
ADC_IN2
ADC_IN1
GPIO_08
GND
GPS_EXT_
LNA_EN
GND
GND
10
GPS
Antenna
GND
11
GND
GND
GND
GPS_PPS
GPIO_09
C109 /
DCD
SIMRST
SIMCLK
SIMIO
GPS_RX
SIMIN
TX_AUX
C107 /
DSR
(1) Available only on GE864-GPS (in case of GE864-QUAD V2 it has to be
considered RESERVED)
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Page 20 of 97
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
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Page 21 of 97
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.
Pin
Signal
I/O
Function
Internal
Pull up
Type
Power Supply
VBATT
Main power supply
Power
VBATT
Main power supply
Power
VBATT
Main power supply
Power
VBATT
Main power supply
Power
GND
Ground
Power
GND
Ground
Power
GND
Ground
Power
Audio
100KΩ
AXE
Handsfree switching
EAR_HF+
AO
Handsfree ear output, phase +
Audio
10
EAR_HF-
AO
Handsfree ear output, phase -
Audio
11
EAR_MT+
AO
Handset earphone signal output, phase +
Audio
12
EAR_MT-
AO
Handset earphone signal output, phase -
Audio
13
MIC_HF+
AI
Handsfree microphone input; phase
Audio
14
MIC_HF-
AI
Handsfree microphone input; phase
Audio
15
MIC_MT+
AI
Handset microphone signal input; phase+
Audio
16
MIC_MT-
AI
Handset microphone signal input; phase-
Audio
CMOS 2.8V
SIM Card Interface
181
SIMVCC
External SIM signal – Power supply for the SIM
1.8 / 3V
19
SIMRST
External SIM signal – Reset
1.8 / 3V
20
SIMIO
I/O External SIM signal - Data I/O
1.8 / 3V
21
SIMIN
External SIM signal - Presence (active low)
22
SIMCLK
External SIM signal – Clock
47KΩ
1.8 / 3V
1.8 / 3V
Trace
23
RX_TRACE
RX Data for debug monitor
CMOS 2.8V
24
TX_TRACE
TX Data for debug monitor
CMOS 2.8V
Service pin shall be used to upgrade the module from ASC1 (RX_TRACE,
TX_TRACE). The pin shall be tied low to enable the feature only in case of a
2.2KΩ
SW Update activity. It is required, for debug purpose, to be connected
to a test pad on the final application.
CMOS 2.8V
47
SERVICE
On this line a maximum of 10nF bypass capacitor is allowed
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Page 22 of 97
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
Serial data input (TXD) from DTE
CMOS 2.8V
26
C104/RXD
Serial data output (RXD) to DTE
CMOS 2.8V
27
C107/DSR
Output for Data set ready signal (DSR) to DTE
CMOS 2.8V
28
C106/CTS
Output for Clear to send signal (CTS) to DTE
CMOS 2.8V
29
C108/DTR
Input for Data terminal ready signal (DTR) from DTE
CMOS 2.8V
30
C125/RING
Output for Ring indicator signal (RI) to DTE
CMOS 2.8V
31
C105/RTS
Input for Request to send signal (RTS) from DTE
CMOS 2.8V
32
C109/DCD
Output for Data carrier detect signal (DCD) to DTE
CMOS 2.8V
DAC and ADC
37
ADC_IN1
AI Analog/Digital converter input
A/D
38
ADC_IN2
AI Analog/Digital converter input
A/D
39
ADC_IN3
AI Analog/Digital converter input
A/D
40
DAC_OUT
AO Digital/Analog converter output
D/A
Miscellaneous Functions
45
STAT_LED
Status indicator led
CMOS 1.8V
46
GND
Ground
Ground
49
PWRMON
Power ON Monitor
CMOS 2.8V
Pull up to
VBATT
53
ON/OFF*
Input command for switching power ON or OFF (toggle
command). The pulse to be sent to the GC864-QUAD V2 47KΩ
must be equal or greater than 1 second.
54
RESET*
Reset input
55
VRTC
AO VRTC Backup capacitor
Power
Telit GPIO / DVI
36
59
63
65
66
67
68
70
71
73
74
76
78
DVI_CLK
I/
TGPIO_04/TXCNTRL
I/
TGPIO_10/DVI_TX
I/
DVI_RX
I/
TGPIO_03
I/
TGPIO_08
I/
TGPIO_06 / ALARM
I/
TGPIO_01
I/
DVI_WAO
TGPIO_07 /
I/
BUZZER
I/
TGPIO_02 / JDR
I/
TGPIO_09
TGPIO_05/
I/
RFTXMON
DVI_CLK (Digital Voice Interface Clock)
Telit GPIO4 Configurable GPIO / RF Transmission
Control
Telit GPIO10 Configurable GPIO / DVI_TX (Digital
Voice Interface)
CMOS 2.8V
CMOS 2.8V
CMOS 2.8V
DVI_RX (Digital Voice Interface)
CMOS 2.8V
Telit GPIO3 Configurable GPIO
CMOS 2.8V
Telit GPIO8 Configurable GPIO
CMOS 2.8V
Telit GPIO6 Configurable GPIO / ALARM
CMOS 2.8V
Telit GPIO1 Configurable GPIO
CMOS 2.8V
DVI_WAO (Digital Voice Interface)
CMOS 2.8V
Telit GPIO7 Configurable GPIO / Buzzer
CMOS 2.8V
Telit GPIO02 I/O pin / Jammer detect report
CMOS 2.8V
Telit GPIO9 Configurable GPIO
CMOS 2.8V
Telit GPIO05 Configurable GPIO / Transmitter ON
monitor
CMOS 2.8V
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Page 23 of 97
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
RESERVED
17
Reserved
33
Reserved
34
Reserved
35
Reserved
41
Reserved
42
Reserved
43
Reserved
44
Reserved
48
Reserved
50
Reserved
51
Reserved
52
Reserved
56
Reserved
57
Reserved
58
Reserved
60
Reserved
61
Reserved
62
Reserved
64
Reserved
69
Reserved
72
Reserved
75
Reserved
77
Reserved
79
Reserved
80
Reserved
NOTE:
The GC864-QUAD V2 Modules has one DVI ports on the system
interface.
NOTE:
Reserved pins must not be connected.
NOTE:
RTS must be connected to the GND (on the module side) if flow
control is not used.
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Page 24 of 97
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.
Signal
Function
VBATT
Main power supply
VBATT
Main power supply
VBATT
Main power supply
VBATT
Main power supply
GND
Ground
GND
Ground
GND
Ground
46
GND
Ground
25
C103/TXD
Serial data input (TXD) from DTE
26
C104/RXD
Serial data output to DTE
31
C105/RTS
Input for Request to send signal (RTS) from DTE
53
ON/OFF*
Input command for switching power ON or OFF (toggle
command).
54
RESET*
Reset input
23
RX_TRACE
RX Data for debug monitor
24
TX_TRACE
TX Data for debug monitor
47
SERVICE
SERVICE connection
GC864-QUAD V2 Antenna Connector
The GC864-QUAD V2 module is equipped with a 50 ohm RF
connector from Murata, GSC type P/N MM9329-2700B.
The counterpart suitable is Murata MXTK92 Type or MXTK88 Type.
Moreover, the GC864-QUAD V2 has the antenna pads on the back
side of the PCB. This allows the manual soldering of the
coaxial cable directly on the back side of the PCB. However,
the soldering is not an advisable solution for a reliable
connection of the antenna.
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Page 25 of 97
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.
The maximum 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
latch up problems on the module, power regulator and improper
power on/off of the module. The line ON# must be connected
only in open collector configuration.
NOTE:
In this document all the lines that are inverted, hence have
active low signals are labeled with a name that ends with a
"#".
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Page 26 of 97
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 +1.8V up to 5V microcontroller:
2- Let us assume you need to drive the ON# pad directly with an
ON/OFF button:
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Page 27 of 97
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:
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Page 28 of 97
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:
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Page 29 of 97
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.
The same circuitry and timing for the power on shall be used.
The device shuts down after the release of the ON# pad.
The following flow chart shows the proper turnoff procedure:
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Page 30 of 97
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.
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Page 31 of 97
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.
To unconditionally restart the module, the pad RESET# must be
tied low for at least 200 milliseconds and then released.
The maximum current that can be drained from the RESET# pad is
0.15 mA.
A simple circuit to do it is:
NOTE:
Do not use any pull up resistor on the RESET# line or any
totem pole digital output. Using pull up resistor may bring to
latch up problems on the module power regulator and improper
functioning of the module. The line RESET# must be connected
only in open collector configuration.
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Page 32 of 97
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.
For example:
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Page 33 of 97
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.
GPS Power-up
After you first apply power the GPS part of GE864-GPS goes
into a low-power mode status. To switch ON the GPS part is
requested a pulse at the input pin GPS_ON_OFF. In order to
know when the GPS is ready to accept the pulse, the
application in the host controller can either:
Wait for a fixed interval
Monitor a pulse on GPS_WAKEUP output
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Page 34 of 97
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. Before asserting another pulse to
GPS_ON_OFF input, the host controller must put it at low state
and hold it low for at least three cycles of the RTC clock.
The GPS_WAKEUP output goes high indicating the GPS is working.
As suggested in chapter 4.1.1 (Pin Out) do not leave the
GPS_ON_OFF (ball J4) input pin floating. It’ suggested to
connect it to a pull-down resistor (e.g.: 100k)
5.4.2.
GPS Shutdown
When GPS is working, a pulse on the GPS_ON_OFF input origins
the GPS shutdown sequence.
As explained for power-up, a rising edge pulse followed by an
high level logic for at least three cycles of RTC clock is
recognized as an GPS_ON_OFF pulse. Before asserting another
pulse to GPS_ON_OFF input, the host controller must put it at
low state and hold it low for at least three cycles of the RTC
clock.
The shutdown sequence may take anywhere from 10ms to 900ms,
depending on operation in progress.
Avoid any abrupt, uncontrolled removal of power (VBATT) while
GPS is operating. Before removing the supply from the module,
perform the shutdown sequence. Performance degradation may be
the consequences of any uncontrolled removal of main power.
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Page 35 of 97
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 –
4.50 V
TIP:
The supply voltage is directly measured between VBATT and
GND balls. It must stay within the Wide Supply Voltage
tolerant range including any drop voltage and overshoot
voltage (during the slot TX, for example).
NOTE:
The Operating Voltage Range MUST never be exceeded also
in power off condition; care must be taken in order to
fulfill min/max voltage requirement
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
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Page 36 of 97
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
(mA)
SWITCHED OFF
Module supplied but Switched Off
Switched
Off
<62 uA
IDLE mode
Normal mode: full functionality of the
AT+CFUN=1
16.0
module
Disabled TX and RX; module is not
AT+CFUN=4
16.0
registered on the network
3.9
Paging Multiframe 2
2.5
Paging Multiframe 3
AT+CFUN=0
or =5
2.4
Paging Multiframe 4
1.5
Paging Multiframe 9
CSD
TX
and
RX
mode
GSM900
240
GSM VOICE CALL
m CSD PL5
DCS1800 CSD PL0
175
iGPRS (class 10) 1TX
GSM900
225
GPRS Sending data mode
s PL5
DCS1800 PL0
160
mGPRS (class 10) 2TX
GSM900
420
GPRS Sending data mode
a PL5
DCS1800 PL0
290
For the GE864-GPS, the additional current consumption of the
GPS section in different operating modes is:
Mode
HIBERNATE
Acquisition mode
Tracking mode
GE864-GPS (GPS ON)
-Additional current Average
(mA)
Mode description
<0.045
only RTC and RAM supplied
45
37
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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.
If the layout of the PCB is not well designed a strong noise
floor is generated on 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 may even shutdown as a
consequence of the supply voltage drop.
TIP:
The electrical design for the Power supply should be made
ensuring it will be capable of a peak current output of at
least 2A.
6.3.
General Design Rules
The principal guidelines for the Power Supply Design embrace
three different design steps:
•
•
•
6.3.1.
the electrical design
the thermal design
the PCB layout.
Electrical Design Guidelines
The electrical design of the power supply depends strongly
from the power source where this power is drained. We will
distinguish them into three categories:
•
•
•
+5V input (typically PC internal regulator output)
+12V input (typically automotive)
Battery
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 regulator can be
used. A switching power supply will not be suited
because of the low drop out requirements.
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•
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.
•
A protection diode can be inserted close to the power
input, in order to save the module from power polarity
inversion.
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
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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.
•
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 100µF tantalum capacitor is typically used.
•
Make sure the low ESR capacitor on the power supply
output (usually 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 inserted close to the power
input, in order to save the module from power polarity
inversion. This can be the same diode used for spike
protection.
An example of switching regulator with 12V input is in the
schematic below (split in 2 parts):
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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. battery types or
4V PB types MUST NOT BE USED DIRECTLY since their maximum
voltage can rise over the absolute maximum voltage for the
module and damage it.
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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.
Make sure the low ESR capacitor (usually a tantalum one)
is rated at least 10V.
A protection diode should be inserted close to the power
input, in order to save the module from power polarity
inversion. Otherwise the battery connector should be done
in a way to avoid polarity inversions when connecting the
battery.
The battery capacity must be at least 500mAh in order to
withstand the current peaks of 2A; the suggested capacity
is from 500mAh to 1000mAh.
•
•
•
6.3.2.
Thermal Design Guidelines
The thermal design for the power supply heat sink must be done
with the following specifications:
•
Average current consumption during transmission @PWR
level max: 500mA
•
Average current consumption during transmission @ PWR
level min: 100mA
•
Average current during Power Saving (CFUN=5): from 1.5 to
3.9mA
•
Average current during idle (Power Saving disabled): 16mA
NOTE:
The average consumption during transmissions depends on the
power level at which the device is requested to transmit by
the network. The average current consumption hence varies
significantly.
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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.
If we assume that the device stays into transmission for short
periods of time (let us say few minutes) and then remains for
a quite long time in idle (let us say one hour), then the
power supply has always the time to cool down between the
calls, and the heat sink could be smaller than the calculated
one for 500mA maximum RMS current, or even could be the simple
chip package (no heat sink).
Moreover, in the average network conditions, the device is
requested to transmit at a lower power level than the maximum,
hence the current consumption will be less than 500mA, usually
around 150mA.
For these reasons the thermal design is rarely a concern and
the simple ground plane where the power supply chip is placed
grants a good thermal condition to avoid overheating as well.
As far as the heat generated by GC/GE864-QUAD V2 and GE864-GPS
, you can consider it to be during transmissions of 1W max
during CSD/VOICE calls and 2W max during class10 GPRS upload.
This generated heat will be mostly conducted to the ground
plane under GC/GE864-QUAD V2 AND GE864-GPS
; you must ensure
that your application can dissipate it.
6.3.3.
Power Supply PCB Layout Guidelines
As seen on the electrical design guidelines the power supply
shall have a low ESR capacitor on the output to cut the
current peaks and a protection diode on the input to protect
the supply from spikes and polarity inversion. The placement
of these components is crucial for the correct working of the
circuitry. A misplaced component can be useless or can even
decrease the power supply performances.
•
The Bypass low ESR capacitor must be placed close to the
Telit GE/GC864-QUAD V2 and GE864-GPS power input pads or in
the case the power supply is a switching type it can be
placed close to the inductor to cut the ripple provided the
PCB trace from the capacitor to the GE/GC864-QUAD V2 and
GE864-GPS wide enough to ensure a dropless connection even
during the 2A current peaks.
•
The protection diode must be placed close to 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
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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. For this reason while a
voltage drop of 300-400 mV may be acceptable from the power
loss point of view, the same voltage drop may not be
acceptable from the noise point of view. If your application
does not have audio interface but only uses the data feature
of the Telit GE/GC864-QUAD V2 and GE864-GPSthen this noise is
not so disturbing and power supply layout design can be more
forgiving.
6.3.4.
•
The PCB traces to the GE/GC864-QUAD V2 and GE864-GPS and the
Bypass capacitor must be wide enough to ensure no significant
voltage drops occur when the 2A current peaks are absorbed.
This is for the same reason as previous point. Try to keep
this trace as short as possible.
•
The PCB traces connecting the Switching output to the
inductor and the switching diode must be kept as short as
possible by placing the inductor and the diode very close to
the power switching IC (only for switching power supply).
This is done in order to reduce the radiated field (noise) at
the switching frequency (100-500 kHz usually).
•
The use of a good common ground plane is suggested.
•
The placement of the power supply on the board must be done
in such a way to guarantee that the high current return paths
in the ground plane are not overlapped to any noise sensitive
circuitry as the microphone amplifier/buffer or earphone
amplifier.
•
The power supply input cables must be kept separate from
noise sensitive lines such as microphone/earphone cables.
Parameters for ATEX Applications
In order to integrate the Telit’s modules into an ATEX
application, the appropriate reference standard IEC EN xx and
integrations shall be followed.
Below are listed parameters and useful information to
integrate the module in your application:
GE864-QUAD V2
•
Total capacity: 27.45 uF
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•
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: 33.26 uF
•
Total inductance: 233 nH
•
No voltage upper than supply voltage is present in the
module.
•
No step-up converters are present in the module.
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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.
GSM Antenna (GE864-QUAD V2/GPS and GC864QUAD V2)
GSM Antenna Requirements
As suggested on the Product Description the antenna for Telit
GE/GC864-QUAD V2 and GE864-GPS devices shall fulfill the
following requirements:
Frequency range
Bandwidth
Gain
Impedance
Input power
VSWR absolute max
VSWR recommended
ANTENNA REQUIREMENTS
Depending by frequency band(s)
provided by the network operator, the
customer shall use the most suitable
antenna for that/those band(s)
70 MHz in GSM850, 80 MHz in GSM900,
170 MHz in DCS & 140 MHz PCS band
Gain < 1,4dBi in GSM 850 & 900
and < 3,0dBi DCS & PCS
50 ohm
> 2 W peak power
<= 10:1 (limit to avoid permanent
damage)
<= 2:1 (limit to fulfill all
regulatory requirements)
Furthermore if the devices are developed for the US market
and/or Canada market, they shall comply to the FCC and/or IC
approval requirements:
Those devices are to be used only for mobile and fixed
application. The antenna(s) used for this transmitter 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. 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
install the GE/GC864-QUAD V2 AND GE864-GPS modules. Antennas
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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.
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 V2 or GE864-GPS, then a PCB line is needed in order
to connect with it or with its connector.
This line of transmission shall fulfill the following
requirements:
ANTENNA LINE ON PCB REQUIREMENTS
Impedance
50 ohm
Max
0,3 dB
Attenuation
No coupling with other signals allowed
Cold End (Ground Plane) of antenna shall be
equipotential to the GE864-QUAD V2 ground pins
This transmission line should be designed according to the
following guidelines:
•
•
•
•
•
•
Ensure that the antenna line impedance is 50 ohm;
Keep the antenna line on the PCB as short as possible,
since the antenna line loss shall be less than 0,3 dB;
Antenna line must have uniform characteristics, constant
cross section, avoid meanders and abrupt curves;
Keep, if possible, one layer of the PCB used only for the
Ground plane;
Surround (on the sides, over and under) the antenna line
on PCB with Ground, avoid having other signal tracks
facing directly the antenna line track;
The ground around the antenna line on PCB has to be
strictly connected to the Ground Plane by placing vias
once per 2mm at least;
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•
•
•
•
7.2.
Place EM noisy devices as far as possible from GE864-QUAD
V2 antenna line;
Keep the antenna line far away from the GE864-QUAD V2 or
GE864-GPS power supply lines;
If you have EM noisy devices around the PCB hosting the
GE864-QUAD V2 or GE864-GPS, such as fast switching ICs,
take care of the shielding of the antenna line by burying
it inside the layers of 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 V2 or GE864-GPS, by using a strip-line on the
superficial copper layer for the antenna line, the line
attenuation will be lower than a buried one;
PCB Guidelines in case of FCC certification
In the case FCC certification is required for an application using
GE864-QUAD V2 or GE864-GPS, according to FCC KDB 996369 for modular
approval requirements, the transmission line has to be similar to
that implemented on GE864-QUAD V2 or GE864-GPS interface board and
described in the following chapter.
7.2.1.
Transmission line design
During the design of the GE864-QUAD V2 or GE864-GPS interface board,
the placement of components has been chosen properly, in order to
keep the line length as short as possible, thus leading to lowest
power losses possible. A Grounded Coplanar Waveguide (G-CPW) line
has been chosen, since this kind of transmission line ensures good
impedance control and can be implemented in an outer PCB layer as
needed in this case. A SMA female connector has been used to feed
the line.
The interface board is realized on a FR4, 4-layers PCB. Substrate
material is characterized by relative permittivity εr = 4.6 ± 0.4 @
1 GHz, TanD= 0.019 ÷ 0.026 @ 1 GHz.
A characteristic impedance of nearly 50 Ω is achieved using trace
width = 1.1 mm, clearance from coplanar ground plane = 0.3 mm each
side. The line uses reference ground plane on layer 3, while copper
is removed from layer 2 underneath the line. Height of trace above
ground plane is 1.335 mm. Calculated characteristic impedance is
51.6 Ω, estimated line loss is less than 0.1 dB. The line geometry
is shown below:
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7.2.2.
0.3 mm
0.2 mm
6.
0.3 mm
L1
FR4
1.1 mm
L2
1.335 mm
0.035 mm
0.035 mm
0.035 mm
1.1 mm
L3
Transmission line measurements
HP8753E VNA (Full-2-port calibration) has been used in this
measurement session. A calibrated coaxial cable has been soldered
at the pad corresponding to GE864-QUAD V2 or GE864-GPS RF output; a
SMA connector has been soldered to the board in order to
characterize the losses of the transmission line including the
connector itself. During Return Loss / impedance measurements, the
transmission line has been terminated to 50 Ω load.
Return Loss plot of line under test is shown below:
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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:
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7.2.3.
7.3.
7.3.1.
GSM Antenna – Installation Guidelines
•
Install the antenna in a place covered by the GSM
signal.
•
The Antenna must be installed to provide a separation
distance of at least 20 cm from all persons and must
not be co-located or operating in conjunction with any
other antenna or transmitter;
•
Antenna shall not be installed inside metal cases
•
Antenna shall be installed also according Antenna
manufacturer instructions.
GPS Antenna (GE864-GPS only)
GPS Antenna Requirements
The GE864-GPS module is provided with an internal LNA
amplifier with two selectable gain level. By default the
GE864-GPS is configured in high gain mode (18dB with 2dB of
noise figure).
If the external antenna is connected to the DUT with a long
coax cable, the use of an external LNA close to the antenna
feed point is recommended. In this case the module must be
configured in low gain mode (8dB with 10dB of noise figure)
through a specific AT command (refer to AT$GPSAT on AT
Commands Reference Guide, 80000ST10025a). The module provides
a digital output signal (GPS_LNA_EN) used for RF power control
that can be used to enable the external LNA.
NOTE: when the internal LNA is in high gain mode, the
GPS_LNA_EN output is tied low (external LNA unused).
NOTE: The typical external gain range is 20 dB (when in low
gain mode, not recommended in high gain mode)
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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.
Linear and Patch GPS Antenna
Using this type of antenna introduces at least 3 dB of loss if compared
to a circularly polarized (CP) antenna. Having a spherical gain response
instead of a hemispherical gain response could aggravate the multipath
behaviour & create poor position accuracy.
7.3.4.
GPS Antenna - PCB Line Guidelines
•
Ensure that the antenna line impedance is 50Ω.
•
Keep the antenna line on the PCB as short as possible
to reduce the loss.
•
Antenna line must have uniform characteristics,
constant cross section, avoid meanders and abrupt
curves.
•
Keep one layer of the PCB used only for the Ground
plane, if possible.
•
Surround (on the sides, over and under) the antenna
line on PCB with Ground, avoid having other signal
tracks facing directly the antenna line of track.
•
The ground around the antenna line on PCB has to be
strictly connected to the Ground Plane by placing vias
once per 2mm at least.
•
Place EM noisy devices as far as possible from GE864GPS antenna line.
•
Keep the antenna line far away from the GE864-GPS
power supply lines.
•
Keep the antenna line far away from the GE864-GPS GSM
RF lines.
•
If you have EM noisy devices around the PCB hosting
the GE864-GPS, such as fast switching ICs, take care
of the shielding of the antenna line by burying it
inside the layers of PCB and surround it with Ground
planes, or shield it with a metal frame cover.
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•
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.e.
shielding).
•
The Antenna must not be co-located or operating in
conjunction with any other antenna or transmitter.
•
Antenna must not be installed inside metal cases.
•
Antenna must be installed also according Antenna
manufacturer instructions.
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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
+3.0 V
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
0.4V
For 1,8V signals:
Operating Range – Interface Levels (1.8V CMOS)
GPS signals
Level
Min
Max
Min
Max
Input high
level
Input low level
Output high
level
Output low
level
1.6V
2.2V
1.26V
3.1V
0V
1,65V
0.4V
2.2V
0V
0.35V
0.45V
1.2V
0.45V
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Current characteristics
Level
Typical
Output Current
1mA
Input Current
1uA
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8.1.
Reset Signal
Signal
RESET
Function
Reset
I/O
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. After the release of the reset GE/GC864-QUAD V2
and GE864-GPS are unconditionally shut down, without doing any
detach operation from the network where it is registered. This
behavior is not a proper shut down because any GSM device is
requested to issue a detach request on turn 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 RESET is internally controlled on start-up to achieve
always a proper power-on reset sequence, so there is no need
to control this pin on start-up. It may only be used to reset
a device already on that is not responding to any command.
NOTE:
Do not use this signal to power off GC/GE864-QUAD V2 and
GE864-GPS . Use the ON/OFF signal to perform this function or
the AT#SHDN command.
Reset Signal Operating Levels:
Signal
Min
RESET Input
2.0V*
high
RESET Input low 0V
Max
2.2V
0.2V
* this signal is internally pulled up so the pin can be left
floating if not used.
If unused, this signal may be left unconnected. If used, then
it must always be connected with an open collector transistor,
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to permit to the internal circuitry the power on reset and
under voltage lockout functions.
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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.
GPS SERIAL PORT (NMEA)
MODEM SERIAL PORT
Several configurations can be designed for the serial port on
the OEM hardware, but the most common are:
•
RS232 PC com port
•
microcontroller UART @ 2.8V – 3V
Asynchronous Receive Transmit)
•
microcontroller UART@ 5V or other voltages different
from 2.8V
(Universal
Depending from the type of serial port on the OEM hardware a
level translator circuit may be needed to make the system
work. The only configuration that does not need a level
translation is the 2.8V UART.
The serial port on the GE/GC864-QUAD V2 and GE864-GPS a +2.8V
UART with all the 7 RS232 signals. It differs from the PCRS232 in the signal polarity (RS232 is reversed) and levels.
The levels for the GE864-QUAD V2 UART are the CMOS levels:
Absolute Maximum Ratings –Not Functional
Parameter
Min
Input level on -0.3V
any digital pad
when on
Input voltage
-0.3V
on analog pads
when on
Max
+3.1V
+3.0 V
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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
0.4V
The table below shows the signals of the GE/GC864-QUAD V2 AND
GE864-GPSserial port:
RS232
Signal
Pin
Number
DCD –
dcd_uart
RXD –
tx_uart
TXD –
rx_uart
GE864-QUAD V2
Pad Number
GC864-QUAD V2
Pad Number
D9
32
H8
26
E7
25
29
Name
Data Carrier Detect
Transmit line
*see Note
Receive line
*see Note
DTR –
dtr_uart
B7
GND
A1,F1, H1 L1,
5,6,7
H2, L2, J3, K3….
Ground
DSR –
dsr_uart
E11
27
Data Set Ready
RTS –
rts_uart
F7
31
Request to Send
CTS –
cts_uart
F6
28
Clear to Send
RI –
ri_uart
B6
30
Ring Indicator
Data Terminal Ready
Usage
Output from the GE864-QUAD
V2 that indicates the
carrier presence
Output transmit line of
GE864-QUAD V2 UART
Input receive of the GE864QUAD V2 UART
Input to the GE864-QUAD V2
that controls the DTE READY
condition
ground
Output from the GE864-QUAD
V2 that indicates the
module is ready
Input to the GE864-QUAD V2
that controls the Hardware
flow control
Output from the GE864-QUAD
V2 that controls the
Hardware flow control
Output from the GE864-QUAD
V2 that indicates the
incoming call condition
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NOTE:
According to V.24, RX/TX signal names are referred to the
application side, therefore on the GE/GC864-QUAD V2 AND
GE864-GPSside 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 GE/GC864-QUAD V2 AND GE864GPSserial port and viceversa for RX
TIP:
For a minimum implementation, only the TXD and RXD lines can
be connected, the other lines can be left open provided a
software flow control is implemented.
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.
9.2.
GE864-GPS Secondary Ports
9.2.1.
Modem Serial Port 2 (GPS Control)
This port is the only communication interface with the GPS
part. It is available on the following pins:
BALL
D11
NAME
TX_AUX
F10
RX_AUX
DESCRIPTION
TX Data for GPS
control
RX Data for GPS
control
TYPE
CMOS 2.8V
CMOS 2.8V
Please note that in order for GPS to be controlled by the GSM
section, the GPS UART and some GPS control signals have to be
connected externally to the GSM section according to the
following table (see also chapter 12):
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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 2.8V (GPS)
GPS RX Lines and TX lines may need a dual supply isolation
buffer like an FXLP34 to avoid CMOS high states while in POWER
SAVING.
9.3.
RS232 Level Translation
In order to interface the Telit GE/GC864-QUAD V2 AND GE864GPSwith 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 & 16750 chipsets
accept signals with lower levels on the RS232 side (EIA/TIA562), allowing 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 to translate the levels and invert the signal
is by using a single chip level translator. There are a
multitude of them, differing in the number of driver and
receiver and in the levels (be sure to get a true RS232 level
translator not a RS485 or other standards).
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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 3.0V; therefore the level translator
IC shall not be powered by the +3.8V supply of the module.
Instead, it must be powered from a +2.7V / +2.9V (dedicated)
power supply.
This is because in this way the level translator IC outputs on
the module side (i.e. GE/GC 864 inputs) will work at +3.8V
interface levels, damaging the module inputs.
NOTE:
In order to be able to do in circuit reprogramming of the
GE/GC 864 firmware, the serial port on the Telit GE/GC 864
shall be available for translation into RS232 and either it's
controlling device shall be placed into tristate, disconnected
or as a gateway for the serial data when module reprogramming
occurs.
Only RXD, TXD, GND and the On/off module turn on pad are
required to the reprogramming of the module, the other lines
are unused.
All applicator shall include in their design such a way of
reprogramming the GE/GC 864.
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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. As for the RS232 translation
there are a multitude of single chip translators. For example
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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.
NOTE:
The UART input line TXD (rx_uart) of the GE/GC864-QUAD V2 and
GE864-GPS NOT internally pulled up with a resistor, so there
may be the need to place an external 47KΩ pull-up resistor,
either the DTR (dtr_uart) and RTS (rts_uart) input lines are
not pulled up internally, so an external pull-up resistor of
47KΩ may be required.
Care must be taken to avoid latch-up on the GE/GC864-QUAD V2
and GE864-GPS and the use of this output line to power
electronic devices shall be avoided, especially for devices
that generate spikes and noise such as switching level
translators, micro controllers, failure in any of these
condition can severely compromise the GE/GC864-QUAD V2 and
GE864-GPS functionality.
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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.
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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.
To distinguish the schematic signals and the Software
identifiers, two different definitions were introduced, with
the following meaning:
•
internal audio transducers
MicroTelephone )
•
external audio transducers 
 HF

 HS/MT (from HandSet or
(from HandsFree )
Actually the acronyms have not the 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, he needs to adopt the Aduio2 Section ( HF ) .
Otherwise the choice could be done in order to overcome the
PCB design difficulties.
For these reasons we have not changed the HS and HF acronyms,
keeping them in the Software and on the schematics.
The Base Band Chip of the GE864-QUAD V2 Telit Modules
maintains the same architecture.
For more information and suggestions refer to Telit document:
•
10.1.
Audio settings application note , 80000NT10007a
Selection mode
Only one block can be active at a time, and the activation of
the requested audio path is done via hardware, by AXE line, or
via software ,by AT#CAP command .
Moreover the Sidetone functionality could be implemented by
the amplifier fitted between the transmit path and the receive
path, enabled at request in both modes.
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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. Input Lines Characteristics
“MIC_MT”
and
“MIC_HF”
differential microphone paths
Line Coupling
Line Type
AC*
Balanced
Differential input voltage
≤ 1,03Vpp
Gain steps
Gain increment
6dB per step
Coupling capacitor
≥ 100nF
Differential input resistance
50KΩ
Input capacitance
≤ 10pF
@ Mic G=0dB
(*) WARNING : AC means that the signals from the microphone
have to be connected to input lines of the module through
capacitors which value has to be ≥ 100nF. Not respecting this
constraint, the input stages will be damaged.
WARNING: when particular OEM application needs a Single Ended
Input configuration, it is forbidden connecting the unused
input directly to Ground, but only through a 100nF capacitor.
Don’t forget that the useful input signal will be halved in
Single Ended Input configuration.
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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.
The OEM circuitry shall be designed to reduce the common mode
noise typically generated on the ground 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 when in
Single Ended configuration. Using a Single Ended
configuration, the unused output line must be left open. Not
respecting this constraint, the output stage will be damaged.
TIP :
Remember that there are slightly different electrical
performances between the two internal audio amplifiers:
• the “Ear_MT” lines
can directly drive a 16Ω load at –
12dBFS (**) in Differential configuration
• the “Ear_HF” lines can directly drive a 4Ω load in
Differential configurations
• There is no difference if the amplifiers drive an external
amplifier
(**) 0dBFS is the normalized overall Analog Gain for each
Output channel equal to 3,7Vpp differential
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“EAR_MT”
Output Lines
line coupling
0dBFS normalized gain
AC single-ended
DC differential
3,7 Vpp differential
output load resistance
≥ 16 Ω
internal output
resistance
signal bandwidth
4Ω (typical)
maximal full scale
differential output
voltage
differential output
voltage
volume increment
3,7 Vpp (typical)
Rload=open circuit
volume steps
10
“EAR_HF”
-12dBFS
150 - 4000 Hz
@ -3 dB
925mVpp / Rload=16Ω
@ -12dBFS
2 dB per step
Output Lines
line coupling
output load resistance
AC single-ended
DC differential
≥ 8 Ω
signal bandwidth
150 - 4000 Hz @ -3 dB
maximal output power
@ battery voltage ≥ 3,6V
volume increment
0.35 Wrms /8 Ω
volume steps
10
2 dB per step
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11.
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 pads can only be read and report the digital value (high
or low) present on the pad at the read time; output pads can
only be written or queried and set the value of the pad
output; an alternate function pad is internally controlled by
the GE/GC864-QUAD V2 and GE864-GPSfirmware and acts depending
on the function implemented.
The following GPIO are available on the GE/GC864-QUAD V2 and
GE864-GPS:
Ball
GE864
Pin
GC864
Signal
I/O
C1
70
TGPIO_01
I/O
E6
74
TGPIO_02 /
JDR
I/O
C2
66
TGPIO_03
I/O
B3
59
TGPIO_04 /
TXCNTRL
I/O
K8
78
TGPIO_05 /
RFTXMON
I/O
B5
68
TGPIO_06 /
ALARM
I/O
L9
73
TGPIO_07 /
BUZZER
I/O
K11
67
TGPIO_08
I/O
C9
76
TGPIO_09
I/O
H3
63
TGPIO_10 /
DVI_TX
I/O
Function
GPIO01
Configurable
GPIO
GPIO02
Configurable
GPIO
GPIO03
Configurable
GPIO
GPIO04
Configurable
GPIO
GPIO05
Configurable
GPIO
GPIO06
Configurable
GPIO
GPIO07
Configurable
GPIO
GPIO08
Configurable
GPIO
GPIO09
Configurable
GPIO
GPIO10
Configurable
GPIO
Type
Input /
output
current
Default
state
ON_OFF
state
During
Reset
state
CMOS
2.8V
1uA / 1mA
INPUT
CMOS
2.8V
1uA / 1mA
INPUT
CMOS
2.8V
1uA / 1mA
INPUT
CMOS
2.8V
1uA / 1mA
INPUT
CMOS
2.8V
1uA / 1mA
INPUT
CMOS
2.8V
1uA / 1mA
INPUT
CMOS
2.8V
1uA / 1mA
INPUT
CMOS
2.8V
1uA / 1mA
INPUT
CMOS
2.8V
1uA / 1mA
INPUT
CMOS
2.8V
1uA / 1mA
INPUT
Note
Alternate
function
(JDR)
Alternate
function
(RF
Transmission
Control)
Alternate
function
(RFTXMON)
Alternate
function
(ALARM)
Alternate
function
(BUZZER)
Alternate
function
(DVI_TX)
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Not all GPIO pads support all these three modes:
11.1.
•
GPIO2 supports all three modes and can be input,
output, Jamming Detect Output (Alternate function)
•
GPIO4 supports all three modes and can be input,
output, RF Transmission Control (Alternate function)
•
GPIO5 supports all three modes and can be input,
output, RFTX monitor output (Alternate function)
•
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)
GPIO Logic Levels
Where not specifically stated, all the interface circuits work
at 2.8V CMOS logic levels.
The following tables show the logic level specifications used
in the GE/GC864-QUAD V2 and GE864-GPSinterface 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
+3.0 V
Operating Range – Interface Levels (2.8V CMOS)
Level
Min
Max
Input high
level
Input low level
Output high
level
Output low
level
2.1V
3.1V
0V
2.2V
0.5V
3.0V
0V
0.35V
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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 2.8V
CMOS, then it can be buffered with 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 drive 2.8V CMOS
digital devices or compatible hardware. When set as outputs,
the pads have a push-pull output and therefore the pull-up
resistor may be omitted.
The illustration below shows the base circuit of a push-pull
stage:
VDD
Q1
GPIO7
Q2
11.4.
Using the RF Transmission Control GPIO4
The GPIO4 pin, when configured as RF Transmission Control
Input, permits to disable the Transmitter when the GPIO is set
to Low by the application.
In the design is necessary to add a resistor 47K pull up to
2.8V, this pull up must be switched off when the module is in
off condition.
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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.
There are 2 different modes for this function:
1) Active during all the calls:
For example, if a call is started, the line will be HIGH
during all the conversation and it will be again LOW after
hanged up.
The line rises up 300ms before first TX burst and will became
again LOW from 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 function.
11.6.
Using the Alarm Output GPIO6
The GPIO6 pad, when configured as Alarm Output, is controlled
by the module and will rise when the alarm starts and fall
after the issue of a dedicated AT command.
This output can be used to power up the module controlling
micro controller or application at the alarm time, giving you
the possibility to program a timely system wake-up to achieve
some periodic actions and completely turn off either the
application and the module during sleep periods, dramatically
reducing the sleep consumption to few µA.
In battery-powered devices this feature will greatly improve
the autonomy of the device.
NOTE:
During RESET the line is set to HIGH logic level.
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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.
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.
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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.
Allowed GPIO
The AT#TEMPMON set command could be used with one of the
following GPIO:
Ball
GE864
Pin
GC864
Signal
I/O
C1
70
TGPIO_01
I/O
E6
74
TGPIO_02 /
JDR
I/O
C2
66
TGPIO_03
I/O
B3
59
TGPIO_04 /
TXCNTRL
I/O
K8
78
TGPIO_05 /
RFTXMON
I/O
B5
68
TGPIO_06 /
ALARM
I/O
L9
73
TGPIO_07 /
BUZZER
I/O
K11
67
TGPIO_08
I/O
C9
76
TGPIO_09
I/O
H3
63
TGPIO_10 /
DVI_TX
I/O
Function
GPIO01
Configurable
GPIO
GPIO02
Configurable
GPIO
GPIO03
Configurable
GPIO
Type
Default
state
ON_OFF
state
During
Reset
state
CMOS
2.8V
1uA / 1mA
INPUT
CMOS
2.8V
1uA / 1mA
INPUT
CMOS
2.8V
1uA / 1mA
INPUT
GPIO04
CMOS
Configurable
2.8V
GPIO
GPIO05
Configurable
GPIO
GPIO06
Configurable
GPIO
GPIO07
Configurable
GPIO
GPIO08
Configurable
GPIO
GPIO09
Configurable
GPIO
GPIO10
Configurable
GPIO
Input / output
current
1uA / 1mA
INPUT
CMOS
2.8V
1uA / 1mA
INPUT
CMOS
2.8V
1uA / 1mA
INPUT
CMOS
2.8V
1uA / 1mA
INPUT
CMOS
2.8V
1uA / 1mA
INPUT
CMOS
2.8V
1uA / 1mA
INPUT
CMOS
2.8V
1uA / 1mA
INPUT
Note
Alternate
function
(JDR)
Alternate
function
(RF
Transmission
Control)
Alternate
function
(RFTXMON)
Alternate
function
(ALARM)
Alternate
function
(BUZZER)
Alternate
function
(DVI_TX)
NOTE:
If the set command is enable the alternate function is not
usable.
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Page 76 of 97
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.
LED status
Device Status
Permanently off
Fast blinking
(Period 1s, Ton
0,5s)
Slow blinking
(Period 3s, Ton
0,3s)
Permanently on
Device off
Net search / Not
registered / turning
off
Registered full
service
a call is active
A schematic example could be:
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Page 77 of 97
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. External SIM Holder Implementation
Please refer to the related User Guide (SIM Holder Design
Guides, 80000NT10001a).
11.12. VAUX Power Output (only for GE864-GPS)
A regulated power supply output is provided in order to supply
small devices from the module.
This output is always active when the module is powered by
VBATT.
The operating range characteristics of the supply are:
Operating Range – VAUX1 power supply
Output voltage
Output current
Output bypass
capacitor
(inside the module)
Min
Typica
Max
2.74V
2.80V
2.86V
100mA
1µF
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Page 78 of 97
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). The required electrical connections are showed
in the figure below.
12.1.2. External Host Controlled Mode
Alternatively to the previous configuration, the GPS part can
be controlled by an external Host so the GSM and GPS may be
managed separately. In this case the Host must have at least
two serial ports and two GPIO available for the control of GPS
(see the figure below).
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Page 79 of 97
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. Pulse Characteristics
The signal is available on BGA Ball C8 on GE864-GPS and on pin
24 of PL101 on EVK2 Adapter board.
Type:
Output CMOS 1.8V
Duration:
Typically 1us
NOTE:
The signal is available only when the receiver provides a
valid Navigation solution.
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Page 80 of 97
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. However, an external low-pass filter is necessary.
Voltage range
(filtered)
Range
Min
Max
2,6
Units
Volt
1023
Steps
The precision is 10 bits, so if we consider that the maximum
voltage is 2V, the integrated voltage could be calculated with
the following formula:
Integrated output voltage = 2 * value / 1023
DAC_OUT line must be integrated (for example with a low band
pass filter) in order to obtain an analog voltage.
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Page 81 of 97
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.
NOTE:
The DAC frequency is selected internally. D/A converter must
not be used during POWERSAVING.
13.1.3. Low Pass Filter Example
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Page 82 of 97
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. They are able to read a
voltage level in the range of 0÷2 volts applied on the ADC pin
input, store and convert it into 11 bit word.
Input Voltage
range
AD conversion
Resolution
Min
Max
Units
Volt
11
< 1
bits
mV
13.2.2. Using ADC Converter
The AT command below is available to use the ADC function:
AT#ADC=1,2
The read value is expressed in mV.
Refer to SW User Guide or AT Commands Reference Guide for the
full description of this function.
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Page 83 of 97
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
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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.
14.1.3. 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]
2,4
Solder
resist
opening 1,150
diameter A [mm]
Metal pad diameter B [mm]
1 ± 0.05
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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 – 0.15
Properties
good solder ability
protection,
high shear force
values
The PCB must be able to resist the higher temperatures which
are occurring at the lead-free process. This issue should be
discussed with the PCB-supplier. Generally, the wettability of
tin-lead solder paste on the described surface plating is
better compared to lead-free solder paste.
14.1.4. Solder paste
Solder paste
Lead free
Sn/Ag/Cu
It is recommended to use only “no clean” solder paste in
order to avoid the cleaning of the modules after assembly.
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Page 86 of 97
GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide
1vv0300915 Rev.2 – 2011-06-15
14.1.5. GE864-QUAD V2/GPS Solder reflow
The following is the recommended solder reflow profile
Profile Feature
Average ramp-up rate (TL to TP)
Preheat
– Temperature Min (Tsmin)
– Temperature Max (Tsmax)
– Time (min to max) (ts)
Tsmax to TL
– Ramp-up Rate
Time maintained above:
– Temperature (TL)
– Time (tL)
Peak Temperature (Tp)
Time within 5°C of actual Peak
Temperature (tp)
Ramp-down Rate
Time 25°C to Peak Temperature
Pb-Free Assembly
3°C/second max
150°C
200°C
60-180 seconds
3°C/second max
217°C
60-150 seconds
245 +0/-5°C
10-30 seconds
6°C/second max.
8 minutes max.
NOTE:
All temperatures refer to topside of the package, measured on
the package body surface
WARNING:
The GE865 module withstands one reflow process only.
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Page 87 of 97
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.
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Page 88 of 97
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. Depending by the customer application,
these pads include, but are not limited to the following
signals:
Ball GE864
Pin GC864 Signal
Function
J1, J2, K1, K2
1,2,3,4
VBATT
Main power supply
A1, A11, D6, F1,
F11, H1, H2, J3,
5,6,7,
K3, K4, K5, K6,
46
L1, L2, L3, L6,
L11
GND
Ground
E7
25
C103/TXD
Serial data input (TXD) from DTE
H8
26
C104/RXD
Serial data output (RXD) to DTE
L8
49
PRWMON
Power ON Monitor
J5
53
ON/OFF*
Input command for switching power ON or OFF
(toggle command).
A2
54
RESET*
Reset input
F10
23
RX_AUX
Auxiliary UART (RX Data from DTE)
D11
24
TX_AUX
Auxiliary UART (TX Data to DTE)
Service pin shall be used to upgrade the
module from ASC1 (RX_TRACE, TX_TRACE).
The pin shall be tied low to enable the
feature only in case of a SW Update
activity. It is required, for debug
purpose, to be connected
to a test pad on the final application.
H4
47
SERVICE
J43
N/A
GPS_ON_OFF3 GPS Power Control
E103
N/A
GPS_RX3
N/A
GPS_TX3
F8
(3
G2
N/A
GPS_WAKEUP
GPS Serial data input
GPS Serial data output
Wake up output
) Available only on GE864-GPS (in case of GE864-QUAD it has to
be considered RESERVED)
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Page 89 of 97
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.
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Page 90 of 97
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. GE864 orientation on the tray
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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.
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Page 92 of 97
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.
If the module is installed in conformance to the Telit
installation manuals, 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.
In all other cases, or if the manufacturer of the final
product is in doubt, then the equipment integrating the radio
module must be assessed against Article 3.2 of the R&TTE
Directive.
In all cases the assessment of the final product must be made
against the Essential requirements of the R&TTE Directive
Articles 3.1(a) and (b), Safety and EMC respectively, and any
relevant Article 3.3 requirements.
This Hardware User Guide contains all the information you may
need for developing a product meeting the R&TTE Directive.
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Page 93 of 97
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. The use of this product may be
dangerous and has to be avoided in the following areas:
 Where it can interfere with other electronic devices in
environments such as hospitals, airports, aircrafts, etc
 Where there is risk of explosion such as gasoline stations,
oil refineries, etc
It is responsibility of the user to enforce the
regulation and the specific environment regulation.
country
Do not disassemble the product; any mark of tampering will
compromise the warranty validity.
We recommend following the instructions of the hardware user
guides for a correct wiring of the product. The product has to
be supplied with a stabilized voltage 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 discharges may damage the
product itself. Same cautions have to be taken for the SIM,
checking carefully the instruction for its use. Do not insert
or remove the SIM when the product is in power saving mode.
The system integrator is responsible of the functioning of the
final product; therefore, care has to be taken to the external
components of the module, as well as of any project or
installation issue, because the risk of disturbing the GSM
network or external devices or having impact on the security.
Should there be any doubt, please refer to the technical
documentation and the regulations in force.
Every module has to be equipped with a proper antenna with
specific characteristics. The antenna has to be installed with
care in order to avoid any interference with other electronic
devices and has to guarantee a minimum distance from the body
(20 cm). In case of this requirement cannot be satisfied, the
system integrator has to assess the final product against the
SAR regulation.
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Page 94 of 97
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.eu/enterprise/sectors/electrical
FCC Regulatory Requirements
This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions:
(1) this device may not cause harmful interference, and
(2) this device must accept any interference received,
including interference that may cause undesired operation.
RF Exposure:
The antenna(s) used for this transmitter must be
installed to provide a separation distance of at least 20
cm from all the persons and must not be co-located or
operating in conjunction with any other antenna or
transmitter.
The system antenna(s) used for this module must not
exceed 1,4dBi (850MHz) and 3.0dBi (1900MHz) for mobile
and fixed or mobile operating configurations.
Users and installers must be provided with antenna
installation instructions and transmitter operating
conditions for satisfying RF exposure compliance.
A label containing the following information must be
affixed to the outside of a host product which
incorporates this module:
Label
Contains FCC ID: RI7GE86Q2
Contains FCC ID: RI7GC864Q2
Contains FCC ID: RI7GE864G2
Module type
For GE864-QUAD V2
For CE864-QUAD V2
For GE864-GPS
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Page 95 of 97
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.
Le présent appareil est conforme aux CNR d'Industrie
Canada applicables aux appareils radio exempts de licence.
L'exploitation est autorisée aux deux conditions
suivantes :
(1) l'appareil ne doit pas produire de brouillage, et
(2) l'utilisateur de l'appareil doit accepter tout
brouillage radioélectrique subi, même si le brouillage
est susceptible d'en compromettre le fonctionnement.
Under Industry Canada regulations, this radio transmitter
may only operate using an antenna of a type and maximum
(or lesser) gain approved for the transmitter by Industry
Canada. To reduce potential radio interference to other
users, the antenna type and its gain should be so chosen
that the equivalent isotropically radiated power
(e.i.r.p.) is not more than that necessary for successful
communication.
Conformément à la réglementation d'Industrie Canada, le
présent émetteur radio peut fonctionner avec une antenne
d'un type et d'un gain maximal (ou inférieur) approuvé
pour l'émetteur par Industrie Canada. Dans le but de
réduire les risques de brouillage radioélectrique à
l'intention des autres utilisateurs, il faut choisir le
type d'antenne et son gain de sorte que la puissance
isotrope rayonnée équivalente (p.i.r.e.) ne dépasse pas
l'intensité nécessaire à l'établissement d'une
communication satisfaisante.
The GE/GC864-QUAD V2 and GE864-GPS has been designed to
comply with safety requirements for exposure to radio
waves (SAR) in accordance with RSS-102.
Please follow
the instructions included in the user guide for product
installation and use.
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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.
Le GE/GC864-QUAD V2 and GE864-GPS a été conçu pour se
conformer aux exigences de sécurité pour l'exposition aux
ondes radio (SAR) en conformité avec RSS-102. S'il vous
plaît suivez les instructions incluses dans le guide
utilisateur pour l'installation du produit et son
utilisation.
Cet émetteur radio (numéro de modèle) a été approuvé par
Industrie Canada pour fonctionner avec des antennes avec
un gain maximal admissible de 1.4 dBi (850MHz) et 3.0dBi
(1900MHz).
Types d'antenne ayant un gain supérieur au gain maximal
indiqué est strictement interdit pour une utilisation
avec cet appareil.
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