Telit Wireless Solutions UE910 series Installation manual

UE910 Hardware User Guide
1VV0301012 Rev.10.9 –
2016-12-16
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UE910 Hardware User Guide
1VV0301012 Rev.10.9 –2016-12-16
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 2 of 93
Applicability Table
PRODUCT
UE910-EUR
UE910-EUD
UE910-NAR
UE910-NAD
UE910-GL
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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 the application of the devices characterized in this
document, and notes that the application of the device must comply with the safety standards of
the applicable country, and where applicable, with the relevant wiring rules.
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 application note.
All rights reserved.
© 2013 Telit Communications S.p.A.
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Contents
1INTRODUCTION .........................................................................................................................................................6
1.1 SCOPE ................................................................................................................................................................................6
1.2 AUDIENCE ...........................................................................................................................................................................6
1.3 CONTACT INFORMATION,SUPPORT..........................................................................................................................................6
1.4 DOCUMENT ORGANIZATION ...................................................................................................................................................7
1.5 TEXT CONVENTIONS..............................................................................................................................................................8
1.6 RELATED DOCUMENTS...........................................................................................................................................................8
1.7 DOCUMENT HISTORY ............................................................................................................................................................9
2OVERVIEW ..............................................................................................................................................................10
3UE910 MODULE CONNECTIONS...............................................................................................................................11
3.1 PIN-OUT .........................................................................................................................................................................11
3.1.1 LGA Pads Layout.....................................................................................................................................................17
4HARDWARE COMMANDS........................................................................................................................................18
4.1 TURNING ON THE UE910 ...................................................................................................................................................18
4.2 TURNING OFF THE UE910 ..................................................................................................................................................25
4.3 UE910 UNCONDITIONAL SHUTDOWN....................................................................................................................................28
5POWER SUPPLY .......................................................................................................................................................31
5.1 POWER SUPPLY REQUIREMENTS............................................................................................................................................31
5.2 POWER CONSUMPTION .......................................................................................................................................................32
5.3 GENERAL DESIGN RULES ......................................................................................................................................................33
5.3.1 Electrical Design Guidelines ...................................................................................................................................33
5.3.2 Thermal Design Guidelines.....................................................................................................................................37
5.3.3 Power Supply PCB layout Guidelines ......................................................................................................................38
6GSM/WCDMA RADIO SECTION ...............................................................................................................................40
6.1 UE910 PRODUCT VARIANTS ................................................................................................................................................40
6.2 TX OUTPUT POWER............................................................................................................................................................40
SENSITIVITY.............................................................................................................................................................................43
6.3 GSM/WCDMA ANTENNA REQUIREMENTS............................................................................................................................43
6.4 GSM/WCDMA -PCB LINE GUIDELINES................................................................................................................................45
6.5 PCB GUIDELINES IN CASE OF FCC CERTIFICATION......................................................................................................................47
6.5.1 Transmission line design ........................................................................................................................................47
6.5.2 Transmission line measurements ...........................................................................................................................48
6.6 ANTENNA -INSTALLATION GUIDELINES ...................................................................................................................................50
7LOGIC LEVEL SPECIFICATIONS..................................................................................................................................51
7.1 UNCONDITIONAL SHUTDOWN ...............................................................................................................................................52
8USB PORT ................................................................................................................................................................53
8.1 USB 2.0 HS......................................................................................................................................................................53
9SPI PORT .................................................................................................................................................................54
9.1 SPI CONNECTIONS..............................................................................................................................................................54
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10 USB HSIC .................................................................................................................................................................55
11 SERIAL PORTS..........................................................................................................................................................56
11.1 MODEM SERIAL PORT 1(USIF0) ...................................................................................................................................57
11.2 MODEM SERIAL PORT 2(USIF1) ...................................................................................................................................59
11.3 RS232 LEVEL TRANSLATION................................................................................................................................................60
12 AUDIO SECTION OVERVIEW ....................................................................................................................................62
12.1 ANALOG VOICE INTERFACE .................................................................................................................................................62
12.1.1 MIC connection ....................................................................................................................................................63
12.1.2 LINE IN Connection...............................................................................................................................................65
12.1.3 EAR Connection ....................................................................................................................................................66
12.2 DIGITAL VOICE INTERFACE..................................................................................................................................................67
12.2.1 Electrical Characteristics ......................................................................................................................................67
12.2.2 CODEC Examples ..................................................................................................................................................67
13 GENERAL PURPOSE I/O ...........................................................................................................................................68
13.1 GPIO LOGIC LEVELS ..........................................................................................................................................................69
13.2 USING A GPIO PAD AS INPUT ...........................................................................................................................................70
13.3 USING A GPIO PAD AS OUTPUT........................................................................................................................................70
13.4 INDICATION OF NETWORK SERVICE AVAILABILITY .....................................................................................................................71
13.5 RTC BYPASS OUT .............................................................................................................................................................72
13.6 EXTERNAL SIM HOLDER IMPLEMENTATION ...........................................................................................................................72
13.7 VAUX POWER OUTPUT.....................................................................................................................................................72
13.8 ADC CONVERTER .............................................................................................................................................................73
13.8.1 Description ...........................................................................................................................................................73
13.8.2 Using ADC Converter ............................................................................................................................................73
14 MOUNTING THE UE910 ON THE APPLICATION ........................................................................................................74
14.1 GENERAL ........................................................................................................................................................................74
14.2 MODULE FINISHING &DIMENSIONS .....................................................................................................................................74
14.3 RECOMMENDED FOOT PRINT FOR THE APPLICATION.................................................................................................................76
14.4 STENCIL ..........................................................................................................................................................................77
14.5 PCB PAD DESIGN..............................................................................................................................................................77
14.6 PCB PAD DIMENSIONS.......................................................................................................................................................78
14.7 SOLDER PASTE..................................................................................................................................................................80
14.7.1 UE910 Solder reflow.............................................................................................................................................80
14.8 PACKING SYSTEM (TRAY)....................................................................................................................................................82
14.9 PACKING SYSTEM (REEL)....................................................................................................................................................84
14.9.1 Carrier Tape Detail ...............................................................................................................................................84
14.9.2 Reel Detail ............................................................................................................................................................85
14.9.3 Packaging Detail ..................................................................................................................................................86
14.10 MOISTURE SENSITIVITY ....................................................................................................................................................86
15 SAFETY RECOMMANDATIONS .................................................................................................................................87
16 CONFORMITY ASSESSMENT ISSUES.........................................................................................................................88
16.1 1999/5/EC DIRECTIVE .....................................................................................................................................................88
16.2 FCC/IC REGULATORY NOTICES............................................................................................................................................91
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1Introduction
1.1 Scope
The aim of this document is the description of some hardware solutions useful for developing a
product with the Telit UE910 module.
1.2 Audience
This document is intended for Telit customers, who are integrators, about to implement their
applications using our UE910 modules.
1.3 Contact Information, Support
For general contact, technical support, to report documentation errors and to order manuals,
contact Telit’s Technical Support Center (TTSC) at:
TS-[email protected]
TS-NORTHAMERI[email protected]
TS-LATINAMERI[email protected]
[e-mail]
Alternatively, use:
http://www.telit.com/en/products/technical-support-center/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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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.
Chapter3: “UE910 Module Connections” deals with the pin out configuration and layout.
Chapter 4: “Hardware Commands” How to operate on the module via hardware.
Chapter 5: “Power supply” Power supply requirements and general design rules.
Chapter 6: “GSM/WCDMA Radio”The antenna connection and board layout design are the
most important parts in the full product design.
Chapter 7: “Logic Level specifications” Specific values adopted in the implementation of logic
levels for this module.
Chapter 8: “USB Port” The USB port on the Telit UE910 is the core of the interface between the
module and OEM hardware
Chapter 9: “SPI port” Refers to the SPI port of the Telit UE910
Chapter 10: “USB HSIC” Refers to the USB HSIC port of the Telit UE910
Chapter 11: “Serial ports” Refers to the serial ports of the Telit UE910
Chapter 12: “Audio Section overview” Refers to the audio blocks of the Base Band Chip of the
UE910 Telit Modules.
Chapter 13: “General Purpose I/O” How the general purpose I/O pads can be configured.
Chapter 14: “Mounting the UE910 on the application board” Mechanical dimensions and
recommendations on how to mount the module on the user’s board.
Chapter 15: “Safety Recommendations”Information related to the Safety topics.
Chapter 16: “Conformity Assessment Issues” Information related to the Conformity
Assessments.
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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
Digital Voice Interface Application Note 80000NT10050A
SPI Port Application Note 80000NT10053A
SIM Holder Design Guides 80000NT10001a
USB HSIC Port Application Note 80000NT10071A
AT Commands Reference Guide 80378ST10091A
Telit EVK2 User Guide 1vv0300704
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1.7 Document History
R
Re ev vi is si io on n
D
Da at te e
C
Ch ha an ng ge es s
ISSUE#0
2012-09-07
Preliminary Version
ISSUE#1
2013-04-10
Updated Chapters 5.2, 6.3, 6.4, 9, 11, 13.4, 15
ISSUE#2
2013-04-24
Updated Chapters 13.4, 15.2
ISSUE#3
2013-08-02
Updated Chapters 4, 5.1, 6.3, 12.4, 13.4, added Reel packaging chapter
ISSUE#4
2013-08-30
Updated Chapters 3.1, 4.1, 4.2, 5.2, 7, 8.1, 10, 12.1
ISSUE#5
2013-12-20
Updated Chapters 1.4, 1.6, 3.1, updated schematics and flow charts; added
USB HSIC; updated packaging drawing; added PCB Guidelines for FCC.
ISSUE#6
2014-08-28
-Updated Chapter 11.2 deleted note under table
ISSUE#7
2015-05-25
Updated Chapter 14.8 Packing system (Tray)
ISSUE#8
2016-09-01
Updated Chapter 3.1.1 LGA Pads Layout –updated pin B1
ISSUE#9
2016-11-30
Updated Chapter 3.1 Pin Out –updated pin B1 (deleted from Reserved pin)
ISSUE#10
2016-12-13
Updated with UE910-GL product
ISSUE#11
2016-12-16
Updated Chapter 3.1 Pin Out
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2Overview
The aim of this document is the description of some hardware solutions useful for developing a
product with the Telit UE910 module.
In this document all the basic functions of a mobile phone will be taken into account; for each
one of them a proper hardware solution will be suggested and eventually the wrong solutions
and common errors to be avoided will be 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 UE910 module. For further hardware
details that may not be explained in this document refer to the Telit UE910 Product Description
document where all the hardware information is reported.
NOTICE:
(EN) The integration of the GSM/GPRS/WCDMA UE910 cellular module within user application shall
be done according to the design rules described in this manual.
(IT) L’integrazione del modulo cellulare GSM/GPRS/WCDMA UE910 all’interno dell’applicazione
dell’utente dovrà rispettare le indicazioni progettuali descritte in questo manuale.
(DE) Die Integration des UE910 GSM/GPRS/WCDMA Mobilfunk-Moduls in ein Gerät muß gemäß der
in diesem Dokument beschriebenen Kunstruktionsregeln erfolgen.
(SL) Integracija GSM/GPRS/WCDMA UE910 modula v uporabniški aplikaciji bo morala upoštevati
projektna navodila, opisana v tem priročniku.
(SP) La utilización del modulo GSM/GPRS/WCDMA UE910 debe ser conforme a los usos para los
cuales ha sido deseñado descritos en este manual del usuario.
(FR) L’intégration du module cellulaire GSM/GPRS/WCDMA UE910 dans l’application de l’utilisateur
sera faite selon les règles de conception décrites dans ce manuel.
(HE)
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, nor 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.
UE910
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3UE910 module connections
3.1 PIN-OUT
PAD
Signal
I/O
Function
Type
COMMENT
USB HS 2.0 COMMUNICATION PORT
B15
USB_D+
I/O
USB differential Data (+)
C15
USB_D-
I/O
USB differential Data (-)
A13
VUSB
I
Power sense for the internal USB
transceiver.
Asynchronous Serial Port (USIF0) - Prog. / Data + HW Flow Control
N15
C103/TXD
I
Serial data input from DTE
CMOS 1.8V
M15
C104/RXD
O
Serial data output to DTE
CMOS 1.8V
M14
C108/DTR
I
Input for (DTR) from DTE
CMOS 1.8V
L14
C105/RTS
I
Input for Request to send signal
(RTS) from DTE
CMOS 1.8V
P15
C106/CTS
O
Output for Clear to Send signal
(CTS) to DTE
CMOS 1.8V
N14
C109/DCD
O
Output for (DCD) to DTE
CMOS 1.8V
P14
C107/DSR
O
Output for (DSR) to DTE
CMOS 1.8V
R14
C125/RING
O
Output for Ring (RI) to DTE
CMOS 1.8V
Asynchronous Auxiliary Serial Port (USIF1)
D15
TX_AUX
O
Auxiliary UART (TX Data to DTE)
CMOS 1.8V
E15
RX_AUX
I
Auxiliary UART (RX Data from
DTE)
CMOS 1.8V
USB HSIC
A12
HSIC_USB_DATA
I/O
USB HSIC data signal
CMOS 1.2V
A11
HSIC_USB_STRB
I/O
USB HSIC strobe signal
CMOS 1.2V
H15
HSIC_SLAVE_WAKEUP
I
Slave Wake Up
CMOS 1.8V
Shared with SPI_MRDY
F15
HSIC_HOST_WAKEUP
O
Host Wake Up
CMOS 1.8V
Shared with SPI CLK
K15
HSIC_SUSPEND_REQUEST
O
Slave Suspend Request
CMOS 1.8V
Shared with GPIO08
J15
HSIC_HOST_ACTIVE
I
Active Host Indication
CMOS 1.8V
Shared with SPI_SRDY
SIM card interface
A6
SIMCLK
O
External SIM signal –Clock
1.8 / 3V
A7
SIMRST
O
External SIM signal –Reset
1.8 / 3V
A5
SIMIO
I/O
External SIM signal –Data I/O
1.8 / 3V
A4
SIMIN
I
External SIM signal –Presence
(active low)
CMOS 1.8
A3
SIMVCC
-
External SIM signal –Power supply
for the SIM
1.8 / 3V
Analog Audio
B2
EAR+
O
Analog Audio Interface (EAR+)
Not available on UE910-
xxD/UE910-GL
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B3
EAR-
O
Analog Audio Interface (EAR-)
Not available on UE910-
xxD/UE910-GL
B4
MIC+
I
Analog Audio Interface (MIC+)
Not available on UE910-
xxD/UE910-GL
B5
MIC-
I
Analog Audio Interface (MIC-)
Not available on UE910-
xxD/UE910-GL
Digital Voice Interface (DVI)
B9
DVI_WA0
I/O
Digital Audio Interface (WA0)
CMOS 1.8V
B6
DVI_RX
I/O
Digital Audio Interface (RX)
CMOS 1.8V
B7
DVI_TX
I/O
Digital Audio Interface (TX)
CMOS 1.8V
B8
DVI_CLK
I/O
Digital Audio Interface (CLK)
CMOS 1.8V
SPI
D15
SPI_MOSI
I
SPI MOSI
CMOS 1.8V
Shared with TX_AUX
E15
SPI_MISO
O
SPI_MISO
CMOS 1.8V
Shared with RX_AUX
F15
SPI_CLK
I
SPI Clock
CMOS 1.8V
H15
SPI_MRDY
I
SPI_MRDY
CMOS 1.8V
J15
SPI_SRDY
O
SPI_SRDY
CMOS 1.8V
DIGITAL IO
C8
GPIO_01
I/O
GPIO_01 /STAT LED
CMOS 1.8V
Alternate Function STAT LED
C9
GPIO_02
I/O
GPIO_02
CMOS 1.8V
C10
GPIO_03
I/O
GPIO_03
CMOS 1.8V
C11
GPIO_04
I/O
GPIO_04
CMOS 1.8V
B14
GPIO_05
I/O
GPIO_05
CMOS 1.8V
C12
GPIO_06
I/O
GPIO_06
CMOS 1.8V
C13
GPIO_07
I/O
GPIO_07
CMOS 1.8V
K15
GPIO_08
I/O
GPIO_08
CMOS 1.8V
L15
GPIO_09
I/O
GPIO_09
CMOS 1.8V
G15
GPIO_10
I/O
GPIO_10
CMOS 1.8V
ADC
B1
ADC_IN1
AI
Analog / Digital converter input
A/D
Accepted values 0 to 1.2V DC
RF SECTION
K1
ANTENNA
I/O
GSM/EDGE/UMTS Antenna
(50 ohm)
RF
Miscellaneous Functions
R13
HW_SHUTDOWN*
I
HW Unconditional Shutdown
CMOS 1.8V
Active low
R12
ON_OFF*
I
Input command for power ON
CMOS 1.8V
Active low
C14
VRTC
I
VRTC Backup capacitor
Power
backup for the embedded RTC
supply
R11
VAUX/PWRMON
O
Supply Output for external
accessories / Power ON Monitor
1.8V
Power Supply
M1
VBATT
-
Main power supply (Baseband)
Power
M2
VBATT
-
Main power supply (Baseband)
Power
N1
VBATT_PA
-
Main power supply (Radio PA)
Power
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N2
VBATT_PA
-
Main power supply (Radio PA)
Power
P1
VBATT_PA
-
Main power supply (Radio PA)
Power
P2
VBATT_PA
-
Main power supply (Radio PA)
Power
E1
GND
-
Ground
Power
G1
GND
-
Ground
Power
H1
GND
-
Ground
Power
J1
GND
-
Ground
Power
L1
GND
-
Ground
Power
A2
GND
-
Ground
Power
E2
GND
-
Ground
Power
F2
GND
-
Ground
Power
G2
GND
-
Ground
Power
H2
GND
-
Ground
Power
J2
GND
-
Ground
Power
K2
GND
-
Ground
Power
L2
GND
-
Ground
Power
R2
GND
-
Ground
Power
M3
GND
-
Ground
Power
N3
GND
-
Ground
Power
P3
GND
-
Ground
Power
R3
GND
-
Ground
Power
D4
GND
-
Ground
Power
M4
GND
-
Ground
Power
N4
GND
-
Ground
Power
P4
GND
-
Ground
Power
R4
GND
-
Ground
Power
N5
GND
-
Ground
Power
P5
GND
-
Ground
Power
R5
GND
-
Ground
Power
N6
GND
-
Ground
Power
P6
GND
-
Ground
Power
R6
GND
-
Ground
Power
P8
GND
-
Ground
Power
R8
GND
-
Ground
Power
P9
GND
-
Ground
Power
P10
GND
-
Ground
Power
R10
GND
-
Ground
Power
M12
GND
-
Ground
Power
B13
GND
-
Ground
Power
P13
GND
-
Ground
Power
E14
GND
-
Ground
Power
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RESERVED
C1
RESERVED
-
RESERVED
D1
RESERVED
-
RESERVED
B2
RESERVED
-
RESERVED
C2
RESERVED
-
RESERVED
D2
RESERVED
-
RESERVED
B3
RESERVED
-
RESERVED
C3
RESERVED
-
RESERVED
D3
RESERVED
-
RESERVED
E3
RESERVED
-
RESERVED
F3
RESERVED
-
RESERVED
G3
RESERVED
-
RESERVED
H3
RESERVED
-
RESERVED
J3
RESERVED
-
RESERVED
K3
RESERVED
-
RESERVED
L3
RESERVED
-
RESERVED
B4
RESERVED
-
RESERVED
C4
RESERVED
-
RESERVED
B5
RESERVED
-
RESERVED
C5
RESERVED
-
RESERVED
C6
RESERVED
-
RESERVED
C7
RESERVED
-
RESERVED
N7
RESERVED
-
RESERVED
P7
RESERVED
-
RESERVED
N8
RESERVED
-
RESERVED
N9
RESERVED
-
RESERVED
A10
RESERVED
-
RESERVED
N10
RESERVED
-
RESERVED
N11
RESERVED
-
RESERVED
B12
RESERVED
-
RESERVED
D12
RESERVED
-
RESERVED
N12
RESERVED
-
RESERVED
P12
RESERVED
-
RESERVED
F14
RESERVED
-
RESERVED
G14
RESERVED
-
RESERVED
H14
RESERVED
-
RESERVED
J14
RESERVED
-
RESERVED
K14
RESERVED
-
RESERVED
N13
RESERVED
-
RESERVED
L13
RESERVED
-
RESERVED
J13
RESERVED
-
RESERVED
M13
RESERVED
-
RESERVED
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K13
RESERVED
-
RESERVED
H13
RESERVED
-
RESERVED
G13
RESERVED
-
RESERVED
F13
RESERVED
-
RESERVED
B11
RESERVED
-
RESERVED
B10
RESERVED
-
RESERVED
A9
RESERVED
-
RESERVED
A8
RESERVED
-
RESERVED
D14
RESERVED
-
RESERVED
A14
RESERVED
-
RESERVED
D13
RESERVED
-
RESERVED
E13
RESERVED
-
RESERVED
F1
RESERVED
-
RESERVED
R9
RESERVED
-
RESERVED
R7
RESERVED
-
RESERVED
P11
RESERVED
-
RESERVED
WARNING:
Reserved pins must not be connected.
NOTE 1:
The following table is listing the main Pinout differences between the UE910 variants
Product
Audio
Notes
UE910-EUR
YES
Analog and digital audio
UE910-EUD
NO
Reserved Pads:,B2, B3, B4, B5
UE910-NAR
YES
Analog and digital audio
UE910-NAD
NO
Reserved Pads:,B2, B3, B4, B5
UE910-GL
YES
Digital Audio; Reserved Pads:B2, B3, B4, B5
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Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 16 of 93
NOTE:
If not used, almost all pins should be left disconnected. The only exceptions are the following
pins:
RTS pin should be connected to the GND (on the module side) if flow control is not used.
The above pins are also necessary to debug the application when the module is assembled on it so we
recommend connecting them also to dedicated test point.
PAD
Signal
Notes
M1,M2,N1,N2,P1,P2
VBATT & VBATT_PA
E1,G1,H1,J1,L1,A2,E2,F2,G2,H2,
J2,K2,L2,R2,M3,N3,P3,R3,D4,M4,
N4,P4,R4,N5,P5,R5,N6,P6,R6,P8,
R8,P9,P10,R10,M12,B13,P13,E14
GND
R12
ON/OFF*
R13
HW_SHUTDOWN*
B15
USB_D+
If not used should be connected to a
Test Point or an USB connector
C15
USB_D-
If not used should be connected to a
Test Point or an USB connector
A13
VUSB
If not used should be connected to a
Test Point or an USB connector
N15
C103/TXD
If not used should be connected to a
Test Point
M15
C104/RXD
If not used should be connected to a
Test Point
L14
C105/RTS
If the flow control is not used it should
be connected to GND
P15
C106/CTS
If not used should be connected to a
Test Point
D15
TXD_AUX
If not used should be connected to a
Test Point
E15
RXD_AUX
If not used should be connected to a
Test Point
K1
MAIN ANTENNA
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3.1.1 LGA Pads Layout
TOP VIEW
A
B
C
D
E
F
G
H
J
K
L
M
N
P
R
1
ADC_IN1
RES
RES
GND
RES
GND
GND
GND
ANT
GND
VBATT
VBATT_P
A
VBATT_P
A
2
GND
SPK+
RES
RES
GND
GND
GND
GND
GND
GND
GND
VBATT
VBATT_P
A
VBATT_P
A
GND
3
SIMVCC
SPK -
RES
RES
RES
RES
RES
RES
RES
RES
RES
GND
GND
GND
GND
4
SIMIN
MIC+
RES
GND
GND
GND
GND
GND
5
SIMIO
MIC -
RES
GND
GND
GND
6
SIMCLK
DVI_RX
RES
GND
GND
GND
7
SIMRST
DVI_TX
RES
RES
RES
RES
8
RES
DVI_CLK
GPIO_01
RES
GND
GND
9
RES
DVI_WA0
GPIO_02
RES
GND
RES
10
RES
RES
GPIO_03
RES
GND
GND
11
HSIC_US
B_STRB
RES
GPIO_04
RES
RES
VAUX/PW
RMON
12
HSIC_US
B_DATA
RES
GPIO_06
RES
GND
RES
RES
ON_OFF*
13
VUSB
GND
GPIO_07
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
GND
HW_SHU
TDOWN*
14
RES
GPIO_05
VRTC
RES
GND
RES
RES
RES
RES
RES
C105/RTS
C108/DTR
C109/DC
D
C107/DSR
C125/RIN
G
15
USB_D+
USB_D-
TX AUX
RX AUX
SPI_CLK
GPIO_10
SPI_MRD
Y
SPI_SRD
Y
GPIO_08
GPIO_09
C104/RXD
C103/TXD
C106/CTS
NOTE:
The pin defined as RES has to be considered RESERVED and not connected on any pin in the
application.
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Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 18 of 93
4Hardware Commands
4.1 Turning ON the UE910
To turn on the UE910 the pad ON_OFF* must be tied low for at least 5 seconds and then
released.
The maximum current that can be drained from the ON_OFF* pad is 0,1 mA.
A simple circuit to do it is:
NOTE:
Don't use any pull up resistor on the ON_OFF* line, it is internally pulled up. Using pull up
resistor may bring to latch up problems on the UE910 power regulator and improper power
on/off of the module. The line ON_OFF* must be connected only in open collector or open
drain configuration.
NOTE:
In this document all the lines that are inverted, hence have active low signals are labelled with a
name that ends with”#",”*” or with a bar over the name.
TIP:
To check if the device has powered on, the hardware line PWRMON should be monitored.
NOTE:
It is mandatory to avoid sending data to the serial ports during the first 200ms of the module
start-up.
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A flow chart showing the proper turn on procedure is displayed below:
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“Modem ON Proc”
START
Y
Y
GOTO
“HW SHUTDOWN
unconditional”
GOTO
“Start AT CMD.”
N
PWMON = ON ?
PWMON = ON ?
N
Delay 1s
ON_OFF* = LOW
Delay = 5 Sec
ON_OFF* = HIGH
“Modem ON Proc”
END
VBATT > 3.22V ?
Y
N
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