Product Technical Specification &
Customer Design Guidelines
Q52 Omni Wireless CPU
Reference: WI_DEV_ASSM_PTS_001
Revision: 004
Date: December 01, 2008
®
Technical Specification
®
Q52 Omni Wireless CPU
Product Technical Specification &
Customer Design Guidelines
Q52 Omni Product
Reference: WI_DEV_ASSM_PTS_001
Revision:
Date:
004
December 01, 2008
Powered by the Wavecom Operating System and Open AT®
© Confidential
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior written
agreement.
Page 1 / 78
Q52 Omni Product
Technical Specification
Document History
Level Date List of revisions
001 March 5, 2008 Creation Wavecom
002 August 26, 2008 Update Wavecom
003 November 14, 2008 Addition of the “Declaration of Conformity” Wavecom
004 December 1, 2008 Update Wavecom
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior written
© Confidential
agreement.
Page 2 / 78
Q52 Omni Product
Technical Specification
Overview
This document defines and specifies the Q52 Omni GSM/Orbcomm dual mode
transceiver.
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior written
© Confidential
agreement.
Page 3 / 78
Q52 Omni Product
Technical Specification
Table of Contents
1 References............................................................................................ 11
1.1 Reference Documents ........................................................................... 11
1.1.1 Wavecom Reference Documentation.............................................. 11
1.1.2 General Reference Documents....................................................... 11
1.2 List of Abbreviations ............................................................................. 12
2 General Description............................................................................... 15
2.1 General Information .............................................................................. 15
2.1.1 Overall Dimensions........................................................................ 15
2.1.2 Environment and Mechanics .......................................................... 15
2.1.3 Transceiver Features..................................................................... 15
2.1.4 Primary Interfaces......................................................................... 16
2.1.5 Operating System .......................................................................... 16
2.2 Functional Description .......................................................................... 17
2.2.1 GSM Functionalities ...................................................................... 18
2.2.2 Orbcomm Functionality.................................................................. 18
2.3 Operating System.................................................................................. 18
3 Interfaces ............................................................................................. 19
3.1 System Connector................................................................................. 19
3.2 Power Supply ........................................................................................ 20
3.2.1 Power Supply Description .............................................................. 20
3.2.2 Power Consumption....................................................................... 22
3.2.3 Recommendations for Less Consumption ..................................... 29
3.3 Electrical Information for Digital I/O....................................................... 30
3.4 Serial Interface ..................................................................................... 31
3.4.1 SPI Bus ......................................................................................... 31
3.4.2 I2C Bus ......................................................................................... 33
3.5 Main Serial Link (UART1)....................................................................... 34
3.5.1 Features........................................................................................ 34
3.5.2 Pin Description of UART1 Interface................................................ 35
3.6 Auxiliary Serial Link (UART2)................................................................. 38
3.6.1 Features........................................................................................ 38
3.7 General Purpose Input/Output................................................................ 39
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior written
© Confidential
agreement.
Page 4 / 78
Q52 Omni Product
Technical Specification
Analog to Digital Converters.................................................................. 40
3.8
3.8.1 Features........................................................................................ 40
3.8.2 Pins Description ............................................................................ 40
3.9 Digital to Analog Converter.................................................................... 41
3.9.1 Features........................................................................................ 41
3.9.2 Pin Description .............................................................................. 41
3.10 Analog Audio Interface .......................................................................... 42
3.10.1 Microphone Input .......................................................................... 42
3.10.2 Speaker Output Characteristics ..................................................... 44
3.10.3 Design Recommendation ............................................................... 45
3.10.4 Buzzer Output................................................................................ 48
3.11 ~ON / OFF Signal ................................................................................... 50
3.11.1 Features........................................................................................ 50
3.11.2 Pin Description .............................................................................. 50
3.11.3 Application.................................................................................... 50
3.12 External Interrupt.................................................................................. 55
3.13 BOOT Signal.......................................................................................... 55
3.13.1 Features........................................................................................ 56
3.13.2 Pin Description .............................................................................. 56
3.13.3 Application.................................................................................... 56
3.14 VREF_2V8 Output .................................................................................. 57
3.15 BAT-RTC (Backup Battery) .................................................................... 57
3.15.1 Interface Description..................................................................... 57
3.16 FLASH-LED Signal ................................................................................. 58
3.17 GPS Functionality.................................................................................. 59
3.17.1 Features (eRide Documentation Extract: For Information Only)....... 59
3.17.2 Performances (eRide Documentation Extract: For Information Only)59
3.18 RF Interface .......................................................................................... 65
3.18.1 RF Connections ............................................................................. 65
3.18.2 RF Performance............................................................................. 65
3.18.3 Transmitter Parameters................................................................. 66
3.18.4 Antenna Specifications ................................................................. 66
4 Technical Specifications ....................................................................... 67
4.1 Environmental Specifications ................................................................ 67
4.2 Mechanical Specifications..................................................................... 69
4.3 Antenna Cable....................................................................................... 70
4.4 GSM Antenna ........................................................................................ 70
5 Appendix............................................................................................... 71
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior written
© Confidential
agreement.
Page 5 / 78
Q52 Omni Product
Technical Specification
Standards and Recommendations.......................................................... 71
5.1
5.2 Declaration of Conformity...................................................................... 75
5.3 Safety Recommendations (for Information Only) .................................... 76
5.3.1 RF Safety ...................................................................................... 76
5.3.2 General Safety............................................................................... 77
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior written
© Confidential
agreement.
Page 6 / 78
Q52 Omni Product
Technical Specification
List of Figures
Figure 1: Top Level Architecture ........................................................................... 17
Figure 2: Power supply during burst emission...................................................... 21
Figure 3: Connected Mode Current Waveform ...................................................... 25
Figure 4: Slow Idle Mode Current Waveform ........................................................ 26
Figure 5: Fast Idle Mode Current Waveform ......................................................... 26
Figure 6: Transfer Mode Class 10 Current Waveform ........................................... 27
Figure 7: SPI Timing diagrams, Mode 0, Master, 4 wires ..................................... 31
Figure 8: I²C Timing diagrams, Master ................................................................. 33
Figure 9: Example of V24/CMOS serial link implementation for UART1................. 36
Figure 10: Example of full modem V24/CMOS serial link implementation for UART1
....................................................................................................................... 37
Figure 11: Example of MIC input connection with LC filter ................................... 43
Figure 12: Example of MIC input connection without LC filter .............................. 43
Figure 13: Example of Speaker connection ........................................................... 45
Figure 14: Capacitor near Microphone.................................................................. 46
Figure 15: Audio track design ............................................................................... 47
Figure 16: Example of buzzer implementation ...................................................... 49
Figure 17: Example of LED driven by the BUZZ-OUT output ................................. 49
Figure 18 : Example of ON/~OFF pin connection .................................................. 50
Figure 19 : Power-ON sequence (no PIN code activated) ...................................... 51
Figure 20 : Power-OFF sequence.......................................................................... 54
Figure 21: Boot Selection Application Example ..................................................... 56
Figure 22: Real Time Clock power supply ............................................................. 57
Figure 23: GPS TTFF, Hot Start Configuration ...................................................... 60
Figure 24: GPS TTFF, Warm Start Configuration .................................................. 61
Figure 25: GPS TTFF, Simulator Cold Start Configuration ..................................... 61
Figure 26: First Position Fix Accuracy Chart 01 .................................................... 62
Figure 27: First Position Fix Accuracy Chart 02 .................................................... 63
Figure 28: First Position Fix Accuracy Chart 03 .................................................... 64
Figure 29: Environmental classes ......................................................................... 68
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior written
© Confidential
agreement.
Page 7 / 78
Q52 Omni Product
Technical Specification
List of Tables
Table 1: GSM /GPRS Frequency............................................................................ 18
Table 2: System connector pinout ........................................................................ 20
Table 3: Power Supply Voltage ............................................................................. 21
Table 4: GSM power consumption without Open AT® processing ....................... 23
Table 5: Power consumption with Dhrystone Open AT® application .................... 24
Table 6: Power Supply Pin-out ............................................................................. 28
Table 7: CMOS Output / Input Electrical Characteristics for 2.8 volt signals.......... 30
Table 8: CMOS Output / Input Electrical Characteristics for 1.8 volt signals.......... 30
Table 9: Open Drain Electrical Characteristics....................................................... 30
Table 10: SPI Bus AC characteristics .................................................................... 32
Table 11: SPI Bus Configuration ........................................................................... 32
Table 12: SPI Bus Pin description ......................................................................... 32
Table 13: I²C Bus AC characteristics..................................................................... 34
Table 14: IC Bus Pin Description........................................................................... 34
Table 15: UART1 Pin Description.......................................................................... 35
Table 16: UART2 Pin Description.......................................................................... 38
Table 17: GPIOs Pin Description ........................................................................... 39
Table 18: ADCs Electrical Characteristics.............................................................. 40
Table 19: ADCs Pin Description ............................................................................ 40
Table 20: DAC Electrical Characteristics ............................................................... 41
Table 21: DAC Pin Description.............................................................................. 41
Table 22: MIC2 Pin Description ............................................................................ 42
Table 23: MIC2 Electrical Characteristics .............................................................. 42
Table 24: SPK Pin Description .............................................................................. 44
Table 25: SPK Electrical Characteristics ................................................................ 44
Table 26: Audio filtering Examples with Murata Components .............................. 47
Table 27: PWM/Buzzer Output Electrical Characteristics ...................................... 48
Table 28: PWM/Buzzer Output Pin Description..................................................... 48
Table 29: External Interrupt Pin description .......................................................... 55
Table 30: External Interrupt Electrical Characteristics ........................................... 55
Table 31: Boot Signal Mode ................................................................................. 56
Table 32: Boot Pin description .............................................................................. 56
Table 33: VREF_2V8 Pin Description ..................................................................... 57
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior written
© Confidential
agreement.
Page 8 / 78
Q52 Omni Product
Technical Specification
Table 34: VREF_2V8 Electrical Characteristics....................................................... 57
Table 35: Bat-RTC Pin Description........................................................................ 58
Table 36: Bat-RTC Electrical Characteristics ......................................................... 58
Table 37: Flash-LED Status................................................................................... 58
Table 38: Flash-LED Pin Description ..................................................................... 59
Table 39: Flash-LED Electrical Characteristics....................................................... 59
Table 40: GPS Functionality Performances ........................................................... 60
Table 41: GSM Antenna Specifications................................................................. 66
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior written
© Confidential
agreement.
Page 9 / 78
Q52 Omni Product
Technical Specification
Cautions
This platform contains a modular transmitter. This device is used for wireless
applications. Note that all electronics parts and elements are ESD sensitive.
Information provided herein by WAVECOM is accurate and reliable. However no
responsibility is assumed for its use and any of such WAVECOM information is
herein provided “as is” without any warranty of any kind, whether express or
implied.
General information about WAVECOM and its range of products is available at the
following internet address:
http://www.wavecom.com
Trademarks
®
WIRELESS”
and certain other trademarks and logos appearing on this document, are filed or
registered trademarks of Wavecom S.A. in France and/or in other countries. All
other company and/or product names mentioned may be filed or registered
trademarks of their respective owners.
, WAVECOM®, Wireless Microprocessor®, Wireless CPU®, Open AT®
, ,
®
, inSIM®, “YOU MAKE IT, WE MAKE IT
Copyright
This manual is copyrighted by WAVECOM with all rights reserved. No part of this
manual may be reproduced, modified or disclosed to third parties in any form
without the prior written permission of WAVECOM.
No Warranty/No Liability
This document is provided “as is”. Wavecom makes no warranties of any kind,
either expressed or implied, including any implied warranties of merchantability,
fitness for a particular purpose, or noninfringement. The recipient of the
documentation shall endorse all risks arising from its use. In no event shall
Wavecom be liable for any incidental, direct, indirect, consequential, or punitive
damages arising from the use or inadequacy of the documentation, even if
Wavecom has been advised of the possibility of such damages and to the extent
permitted by law.
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior written
© Confidential
agreement.
Page 10 / 78
Q52 Omni Product
Technical Specification
1 References
1.1 Reference Documents
For more details, several reference documents may be consulted. The Wavecom
reference documents are provided in the Wavecom document package, contrary to
the general reference documents which are not authored by Wavecom.
1.1.1 Wavecom Reference Documentation
®
[1] Wireless Microprocessor
Reference: WM_DEV_WUP_PTS_004
[2] WMP100 Development Kit User Guide
WMP100 Technical Specification
Reference: WM_DEV_WUP_UGD_001
®
[3] AT Command Interface Guide for Open AT
Firmware v7.0
Reference: WM_DEV_OAT_UGD_059
1.1.2 General Reference Documents
[4] “I²C Bus Specification”, Version 2.0, Philips Semiconductor 1998
[5] ISO 7816-3 Standard
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior written
© Confidential
agreement.
Page 11 / 78
1.2 List of Abbreviations
Abbreviation Definition
AC Alternating Current
ADC Analog to Digital Converter
A/D Analog to Digital conversion
AF Audio-Frequency
AT ATtention (prefix for modem commands)
AUX AUXiliary
CAN Controller Area Network
CB Cell Broadcast
CEP Circular Error Probable
CLK CLocK
CMOS Complementary Metal Oxide Semiconductor
Q52 Omni Product
Technical Specification
CS Coding Scheme
CTS Clear To Send
DAC Digital to Analog Converter
dB Decibel
DC Direct Current
DCD Data Carrier Detect
DCE Data Communication Equipment
DCS Digital Cellular System
DR Dynamic Range
DSR Data Set Ready
DTE Data Terminal Equipment
DTR Data Terminal Ready
EFR Enhanced Full Rate
E-GSM Extended GSM
EMC ElectroMagnetic Compatibility
EMI ElectroMagnetic Interference
EMS Enhanced Message Service
EN ENable
ESD ElectroStatic Discharges
FIFO First In First Out
FR Full Rate
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior written
© Confidential
agreement.
Page 12 / 78
Abbreviation Definition
FTA Full Type Approval
GND GrouND
GPI General Purpose Input
GPC General Purpose Connector
GPIO General Purpose Input Output
GPO General Purpose Output
GPRS General Packet Radio Service
GPS Global Positioning System
GSM Global System for Mobile communications
HR Half Rate
I/O Input / Output
LED Light Emitting Diode
LNA Low Noise Amplifier
Q52 Omni Product
Technical Specification
MAX MAXimum
MIC MICrophone
MIN MINimum
MMS Multimedia Message Service
MO Mobile Originated
MT Mobile Terminated
na Not Applicable
NF Noise Factor
NMEA National Marine Electronics Association
NOM NOMinal
NTC Negative Temperature Coefficient
PA Power Amplifier
Pa Pascal (for speaker sound pressure measurements)
PBCCH Packet Broadcast Control CHannel
PC Personal Computer
PCB Printed Circuit Board
PDA Personal Digital Assistant
PFM Power Frequency Modulation
PSM Phase Shift Modulation
PWM Pulse Width Modulation
RAM Random Access Memory
RF Radio Frequency
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior written
© Confidential
agreement.
Page 13 / 78
Abbreviation Definition
RFI Radio Frequency Interference
RHCP Right Hand Circular Polarization
RI Ring Indicator
RST ReSeT
RTC Real Time Clock
RTCM Radio Technical Commission for Maritime services
RTS Request To Send
RX Receive
SCL Serial CLock
SDA Serial DAta
SIM Subscriber Identification Wireless CPU
SMS Short Message Service
SPI Serial Peripheral Interface
Q52 Omni Product
Technical Specification
SPL Sound Pressure Level
SPK SPeaKer
SRAM Static RAM
TBC To Be Confirmed
TDMA Time Division Multiple Access
TP Test Point
TVS Transient Voltage Suppressor
TX Transmit
TYP TYPical
UART Universal Asynchronous Receiver-Transmitter
USB Universal Serial Bus
USSD Unstructured Supplementary Services Data
VSWR Voltage Standing Wave Ratio
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior written
© Confidential
agreement.
Page 14 / 78
Q52 Omni Product
Technical Specification
2 General Description
2.1 General Information
The Q52 Omni is a dual mode GSM/Orbcomm transceiver consisting of an EGSM/GPRS 900/1800 and 850/1900 quad-band GSM transceiver combined with a
full function Orbcomm transceiver. The operating mode of the dual mode
transceiver is managed by an internal communication controller that employs an
always best connected strategy with priority given to the GSM mode of operation
2.1.1 Overall Dimensions
Length: 114.55 mm
Width: 47.5 mm
Thickness: 16.2 mm
2.1.2 Environment and Mechanics
• Green policy: RoHS compliant
• Complete shielding
The Q52 Omni is compliant with RoHS (Restriction of Hazardous Substances in
Electrical and Electronic Equipment) Directive 2002/95/EC which sets limits for the
use of certain restricted hazardous substances. This directive states that “from 1st
July 2006, new electrical and electronic equipment put on the market does not
contain lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls
(PBB) or polybrominated diphenyl ethers (PBDE)”.
Transceivers which are compliant with this directive
are identified by the RoHs logo on their label.
2.1.3 Transceiver Features
• 2-Watt EGSM 900/GSM 850 radio
• 1-Watt GSM1800/1900 radio
• Hardware GPRS class 10 capable
• Internal GSM SIM card
• 5-Watt Orbcomm radio
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior written
© Confidential
agreement.
Page 15 / 78
2.1.4 Primary Interfaces
• Power supply
*
UARTs Serial links
• 2
• GSM Analog audio
• Serial Protocol Interface (SPI)
2
• I
C Interface
• 2 A/D inputs and 1 D/A output
• Digital I/Os
• GSM , GPS
†
and Orbcomm antenna ports
2.1.5 Operating System
• Real Time Clock with calendar
• Echo Cancellation + noise reduction (quadri codec)
Q52 Omni Product
Technical Specification
• Full GSM or GSM/GPRS Operating System stack
• Full Orbcomm Operating System stack
• Full GPS Operating System Stack
‡
*
One on Version with GPS functionnality
†
According to version
‡
According to version
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior written
© Confidential
agreement.
Page 16 / 78
2.2 Functional Description
The top level architecture of the Q52 Omni is described below:
Q52 Omni Product
Technical Specification
Figure 1: Top Level Architecture
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior written
© Confidential
agreement.
Page 17 / 78
Q52 Omni Product
Technical Specification
2.2.1 GSM Functionalities
The Radio Frequency (RF) range of the GSM transceiver complies with the Phase II
EGSM 900/DCS 1800 and GSM 850/PCS 1900 recommendations. The frequencies
are:
Transmit band (Tx) Receive band (Rx)
GSM 850 824 to 849 MHz 869 to 894 MHz
E-GSM 900 880 to 915 MHz 925 to 960 MHz
DCS 1800 1710 to 1785 MHz 1805 to 1880 MHz
PCS 1900 1850 to 1910 MHz 1930 to 1990 MHz
Table 1: GSM /GPRS Frequency
2.2.2 Orbcomm Functionality
TBD
2.3 Operating System
The Operating System offers an extensive set of AT commands to control both the
GSM and Orbcomm functionality of the module.
The Operating System in the module is Open AT
application developer to optionally integrate various types of specific process
applications such as vertical applications (telemetry, multimedia, automotive…) into
the internal ARM9 microprocessor.
®
compliant. This enables the
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior written
© Confidential
agreement.
Page 18 / 78
Q52 Omni Product
Technical Specification
3 Interfaces
3.1 System Connector
Pin Signal Description Dir Pin Type Alternate Function
BUZZ-OUT Buzzer Output O Open Drain
1
VREF_2V8 Logic Voltage Reference O V-Ref
2
FLASH-LED Flash LED Driver O Open Drain
3
BAT-RTC Battery for RTC I/O Power
4
GND Chassis Ground Ground
5
GND Chassis Ground Ground
6
SPK2 Speaker Audio from module O Audio
7
GND Chassis Ground Ground
8
AGND Analog Reference Ground
9
MIC2 Microphone Audio to module I Audio
10
DAC0 8 bit D/A Converter Output O 0 - 2 volts
11
PWR_EN Switches the module on/off I
12
ADC0 10 bit A/D Converter Input I 0 - 2 volts
13
ADC1 10 bit A/D Converter Input I 0 - 2 volts
14
HW_SD Hardware Shutdown I/O CMOS_2V8
15
EXT-INT0 External Interrupt Signal I CMOS_1V8 GPIO3
16
SPI-I SPI Input (four wire
17
interface)
I CMOS_2V8 GPIO30
SPI1-IO SPI1 Out (four wire
18
SPI-CLK SPI1 Clock I/O CMOS_2V8 GPIO28
19
SPI-CS SPI1 Chip Select O CMOS_2V8 GPIO31
20
GND Chassis Ground Ground
21
GND Chassis Ground Ground
22
DCD1 Data Carrier Detect_UART1 O CMOS_2V8 GPIO43
23
RI1 Ring Indicator_UART1 O CMOS_2V8 GPIO42
24
CTS1 Clear to Send_UART1 O CMOS_2V8 GPIO39
25
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior written
agreement.
interface)
SPI1 IO (three wire
interface)
© Confidential
O
CMOS_2V8 GPIO29
I/O
Page 19 / 78
Q52 Omni Product
Technical Specification
Pin Signal Description Dir Pin Type Alternate Function
DTR1 Data Terminal
26
I CMOS_2V8 GPIO41
Ready_UART1
TXD1 Transmit Data_UART1 I CMOS_2V8 GPIO36
27
RTS1 Request to Send_UART1 I CMOS_2V8 GPIO38
28
VCC_12V 12 VDC supply input I Power
29
RXD1 Receive Data_UART1 O CMOS_2V8 GPIO37
30
VCC_12V 12 VDC supply input I Power
31
VCC_12V 12 VDC supply input I Power
32
VCC_3V6 3.6 VDC regulated supply I Power
33
VCC_3V6 3.6 VDC regulated supply I Power
34
SDA_I2C I 2C Data I/O Open Drain GPIO27
35
SCL_I2C I 2C Clock O Open Drain GPIO26
36
TXD2 Transmit Data_UART2 I CMOS_1V8 GPIO14
37
CTS2 Clear to Send_UART2 O CMOS_1V8 GPIO16
38
RXD2 Receive Data_UART2 O CMOS_1V8 GPIO15
39
RTS2 Request to Send_UART2 I CMOS_1V8 GPIO17
40
Table 2: System connector pinout
3.2 Power Supply
3.2.1 Power Supply Description
The power supply required for the Q52Omni is a dual rail supply; VCC_3V6 and
VCC_12V. VCC_12V is only required to support Satellite mode operation. VCC_3V6
is used for GSM/GPRS, Satellite and GPS operation.
The power supply is one of the key issues in the design of a dual mode terminal.
Operation in GSM mode requires particularly careful attention to the ability of the
power supply to provide clean DC power.
Due to the burst emission mode used in GSM/GPRS, the VCC_3V6 power supply
must be able to deliver high current peaks in a short time. During the peaks, the
ripple (U
Power Supply Voltage
• In communication mode, a GSM/GPRS class 2 terminal emits 577μs radio
) on the supply voltage must not exceed a certain limit (see Table 3:
ripp
).
bursts every 4.615ms (see
Figure 2).
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior written
© Confidential
agreement.
Page 20 / 78
VCC 3V6
Q52 Omni Product
Technical Specification
Uripp
t = 577 µs
T = 4,615 ms
Uripp
Figure 2: Power supply during burst emission
• In communication mode, a GPRS class 10 terminal emits 1154μs radio
bursts every 4.615ms.
Only the VCC_3V6 (+3.6 VDC) power supply input is necessary during GSM mode
of operation
VCC_3V6:
• Supplies the GSM RF components. It is essential to keep a minimum voltage
ripple at this connection in order to avoid any phase error.
The RF Power Amplifier current (2.0 A peak in GSM /GPRS mode) flows with a ratio
of:
• 1/8 of the time (around 577 μs every 4.615ms for GSM /GPRS cl. 2) and
• 2/8 of the time (around 1154 μs every 4.615ms for GSM /GPRS
cl. 10).
The rise time is around 10μ s.
• Supplies the GSM baseband components
V
V
min
V
nom
Ripple max (U
max
ripp
)
VCC_12V 11.0 13.6 16.0 TBD mVpp
VCC_3V6
1,
2
3.6 3.8 4.0 200mVrms
Table 3: Power Supply Voltage
(1): This value has to be guarantied during the burst (with 2.0A Peak in GSM or
GPRS mode)
(2): Max operating Voltage Stationary Wave Ratio (VSWR) 2:1
®
When the Wireless CPU
is in Alarm mode, no voltage must be applied on any pin
of the 40-pin connector except on VRTC (pin 4) for RTC operation or PWR_EN (pin
12) to power ON the dual mode Transceiver.
When supplying the Q52 OMNI with a battery, the total impedance
(battery+protections+PCB) on 3V6 should be <150 mOhms.
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior written
© Confidential
agreement.
Page 21 / 78
Q52 Omni Product
Technical Specification
3.2.2 Power Consumption
GSM power consumption is dependent on the configuration used. It is for this
reason that the following consumption values are given for each mode, RF band
and type of software used (AT or Open AT™).
All the following information is given assuming a 50 Ω RF output.
The following consumption values were obtained by performing measurements on
Wireless Microprocessor samples at a temperature of 25° C.
Three VCC_3V6 values are used to measure the consumption, VCC_3V6
VCC_3V6
(4.8V) and VCC_3V6
MAX
(3.6V).
TYP
(3.2V),
MIN
The average current is given for the three VBATT values and the peak current given
is the maximum current peak measured with the three VCC_3V6 voltages.
For a more detailed description of the operating modes, see the appendix of the
Command Interface Guide for Open AT® Firmware v7.0
.
AT
All following consumption measurement values have to be confirmed.
®
3.2.2.1 Power Consumption without Open AT
Processing
The following measurement results are relevant when:
• There is no Open AT
• The Open AT
®
application is disabled
• No processing is required by the Open AT
®
application
®
application
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior written
© Confidential
agreement.
Page 22 / 78
Q52 Omni Product
Technical Specification
I
MIN
Operating mode Parameters
average
VCC_3V6
=4.8V
Alarm Mode 21 16 15 µA
I
NOM
average
VCC_3V6
=3.6V
I
MAX
average
VCC_3V6
=3.2V
I
MAX
peak
unit
Fast Idle Mode
Paging 9 (Rx burst occurrence ~2s) 15 17 18 160
Paging 2 (Rx burst occurrence ~0,5s)
Paging 9 (Rx burst occurrence ~2s)
17 18 19 160
1.5
(1.5 to 1.75)
1.6
(1.6 to 1.9)
1.7
(1.7 to 2.05)
160
RX
RX
RX
mA
mA
mA
Slow Idle Mode 1
Paging 2 (Rx burst occurrence ~0,5s)
4
(4 to 4.3)
4.4
(4.4 to 4.75)
4.6
(4.6 to 4.95)
160
RX
mA
Fast Standby Mode 30 36 39 mA
Slow Standby Mode 1.4 1.4 1.5 mA
1450
TX
TX
mA
mA
850/900 MHz
PCL5 (TX power
33dBm)
PCL19 (TX power
6dBm)
210 218 222
81 89 92 270
Connected Mode
Transfer Mode
class 8 (4Rx/1Tx)
1800/1900
MHz
850/900 MHz
1800/1900
MHz
PCL0 (TX power
33dBm)
PCL19 (TX power
6dBm)
PCL3 (TX power
33dBm)
PCL17 (TX power
5dBm)
PCL3 (TX power
30dBm)
PCL18 (TX power
0dBm)
145 153 157 850
77 85 88 250
201 209 213
78 85 88 270
138 146 149 850
74 81 84 250
TX
TX
1450
TX
TX
TX
TX
mA
mA
mA
mA
mA
mA
1450
TX
TX
TX
TX
mA
mA
mA
mA
Transfer Mode
class 10 (3Rx/2Tx)
850/900 MHz
1800/1900
MHz
PCL3 (TX power
33dBm)
PCL17 (TX power
5dBm)
PCL3 (TX power
30dBm)
PCL18 (TX power
0dBm)
364 372 378
112 120 123 270
237 245 248 850
104 111 115 250
Table 4: GSM power consumption without Open AT® processing
means that the current peak is the RF transmission burst (Tx burst)
TX
means that the current peak is the RF reception burst (Rx burst)
RX
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior written
© Confidential
agreement.
Page 23 / 78