Telit Wireless Solutions DE910 Series Installation manual

DE910 Series Hardware User
Guide
1vv0300951 Rev.9 – 2015-05-11

DE910 Series Hardware User Guide
1vv0300951 Rev.9 – 2015-05-11
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APPLICABILITY TABLE
PRODUCT
DE910
-
DUAL
DE910
-
SC

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SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE
Notice
While reasonable efforts have been made to assure the accuracy of this document, Telit
assumes no liability resulting from any inaccuracies or omissions in this document, or from
use of the information obtained herein. The information in this document has been carefully
checked and is believed to be entirely reliable. However, no responsibility is assumed for
inaccuracies or omissions. Telit reserves the right to make changes to any products described
herein and reserves the right to revise this document and to make changes from time to time
in content hereof with no obligation to notify any person of revisions or changes. Telit does
not assume any liability arising out of the application or use of any product, software, or
circuit described herein; neither does it convey license under its patent rights or the rights of
others.
It is possible that this publication may contain references to, or information about Telit
products (machines and programs), programming, or services that are not announced in your
country. Such references or information must not be construed to mean that Telit intends to
announce such Telit products, programming, or services in your country.
Copyrights
This instruction manual and the Telit products described in this instruction manual may be,
include or describe copyrighted Telit material, such as computer programs stored in
semiconductor memories or other media. Laws in the Italy and other countries preserve for
Telit and its licensors certain exclusive rights for copyrighted material, including the
exclusive right to copy, reproduce in any form, distribute and make derivative works of the
copyrighted material. Accordingly, any copyrighted material of Telit and its licensors
contained herein or in the Telit products described in this instruction manual may not be
copied, reproduced, distributed, merged or modified in any manner without the express
written permission of Telit. Furthermore, the purchase of Telit products shall not be deemed
to grant either directly or by implication, estoppel, or otherwise, any license under the
copyrights, patents or patent applications of Telit, as arises by operation of law in the sale of a
product.
Computer Software Copyrights
The Telit and 3rd Party supplied Software (SW) products described in this instruction manual
may include copyrighted Telit and other 3rd Party supplied computer programs stored in
semiconductor memories or other media. Laws in the Italy and other countries preserve for
Telit and other 3rd Party supplied SW certain exclusive rights for copyrighted computer
programs, including the exclusive right to copy or reproduce in any form the copyrighted
computer program. Accordingly, any copyrighted Telit or other 3rd Party supplied SW
computer programs contained in the Telit products described in this instruction manual may
not be copied (reverse engineered) or reproduced in any manner without the express written
permission of Telit or the 3rd Party SW supplier. Furthermore, the purchase of Telit products
shall not be deemed to grant either directly or by implication, estoppel, or otherwise, any
license under the copyrights, patents or patent applications of Telit or other 3rd Party supplied
SW, except for the normal non-exclusive, royalty free license to use that arises by operation
of law in the sale of a product.

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Usage and Disclosure Restrictions
License Agreements
The software described in this document is the property of Telit and its licensors. It is
furnished by express license agreement only and may be used only in accordance with the
terms of such an agreement.
Copyrighted Materials
Software and documentation are copyrighted materials. Making unauthorized copies is
prohibited by law. No part of the software or documentation may be reproduced, transmitted,
transcribed, stored in a retrieval system, or translated into any language or computer language,
in any form or by any means, without prior written permission of Telit
High Risk Materials
Components, units, or third-party products used in the product described herein are NOT
fault-tolerant and are NOT designed, manufactured, or intended for use as on-line control
equipment in the following hazardous environments requiring fail-safe controls: the operation
of Nuclear Facilities, Aircraft Navigation or Aircraft Communication Systems, Air Traffic
Control, Life Support, or Weapons Systems (High Risk Activities"). Telit and its supplier(s)
specifically disclaim any expressed or implied warranty of fitness for such High Risk
Activities.
Trademarks
TELIT and the Stylized T Logo are registered in Trademark Office. All other product or
service names are the property of their respective owners.
Copyright © Telit Communications S.p.A. 2013.

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Contents
1. Introduction ................................................. 8
1.1. Scope ..................................................... 8
1.2. Audience .................................................. 8
1.3. Contact Information, Support .............................. 8
1.4. Document Organization ..................................... 9
1.5. Text Conventions ......................................... 10
1.6. Related Documents ........................................ 10
2. General Product Description ................................. 11
2.1. Overview ................................................. 11
2.2. Product Specifications ................................... 12
2.3. RoHS Compliance .......................................... 13
3. DE910 Module Connections .................................... 14
3.1. Pin-Out .................................................. 14
3.1.1. LGA Pads Layout (DE910-DUAL) ............................... 19
3.1.2. LGA Pads Layout (DE910-SC) ................................. 20
4. Hardware Commands ........................................... 21
4.1. Turning on the DE910 module .............................. 21
4.1.1. Initialization and Activation State ........................ 21
4.2. Turning off the DE910 module ............................. 23
4.2.1. Shutdown by Software Command ............................... 24
4.2.2. Hardware Shutdown .......................................... 24
4.3. Hardware Reset ........................................... 25
4.3.1. Hardware Unconditional Shutdown ............................ 25
4.4. Summary of Turning ON and OFF the Module ................. 26
5. Power Supply ................................................ 27
5.1. Power Supply Requirements ................................ 27
5.2. General Design Rules ..................................... 29
5.2.1. Electrical Design Guidelines ............................... 29
5.2.2. + 5V Input Source Power Supply Design Guidelines ........... 29
5.2.3. +12V Input Source Power Supply Design Guidelines ........... 30
5.2.4. Battery Source Power Supply Design Guidelines .............. 31
5.2.5. Thermal Design Guidelines .................................. 31

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5.2.6. Power Supply PCB layout Guidelines ......................... 32
6. Antenna ..................................................... 35
6.1. CDMA Antenna Requirements ................................ 35
6.1.1. CDMA antenna – PCB line Guidelines ......................... 36
6.1.2. PCB Guidelines in case of FCC certification ................ 37
6.1.3. CDMA Antenna – Installation Guidelines ..................... 39
6.2. Antenna Diversity Requirements ........................... 40
6.3. GNSS Antenna Requirements ................................ 41
6.3.1. Combined GNSS Antenna ...................................... 41
6.3.2. Linear and Patch GNSS Antenna .............................. 41
6.3.3. The Design Considerations to enhanced GNSS performance ..... 41
6.3.4. GNSS Antenna – PCB Line Guidelines ......................... 44
6.3.5. GNSS Antenna – Installation Guidelines ..................... 44
7. USB Port .................................................... 45
8. Serial Port ................................................. 46
8.1. Modem Serial Port 1 ...................................... 47
8.2. Modem Serial Port 2 ...................................... 48
8.3. RS232 Level Translation .................................. 48
9. Audio Section Overview ...................................... 51
9.1. Electrical Characteristics ............................... 51
9.1.1. CODEC Example .............................................. 51
10. General Purpose I/O ......................................... 52
10.1. Logic Level Specification .............................. 53
10.2. Using a GPIO Pad as Input .............................. 53
10.3. Using a GPIO Pad as Output ............................. 54
10.4. Using the Temperature Monitor Function ................. 54
10.4.1. Short Description ........................................ 54
10.5. Indication of Network Service Availability ............. 55
10.6. RTC Bypass Output ...................................... 56
10.7. VAUX/PWRMON Power Output ............................... 57
11. DAC and ADC section ......................................... 58
11.1. DAC Converter .......................................... 58
11.1.1. Description .............................................. 58

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11.1.2. Enabling DAC ............................................. 58
11.1.3. Low Pass Filter Example .................................. 59
11.2. ADC Converter .......................................... 59
11.2.1. Description .............................................. 59
11.2.2. Using ADC Converter ...................................... 59
12. Test Point .................................................. 60
13. Mounting the Module on your Board ........................... 61
13.1. General ................................................ 61
13.2. Module Finishing & Dimensions .......................... 61
13.3. Recommended foot print for the application ............. 62
13.4. Stencil ................................................ 63
13.5. PCB Pad Design ......................................... 63
13.6. Recommendations for PCB Pad Dimensions (mm) ............ 63
13.7. Solder Paste ........................................... 65
13.7.1. Solder Reflow ............................................ 65
14. Packing System .............................................. 67
14.1. Tray ................................................... 67
14.2. Reel ................................................... 69
14.2.1. Carrier Tape Detail ...................................... 69
14.2.2. Reel Detail .............................................. 70
14.2.3. Packaging Detail ......................................... 70
14.3. Moisture Sensibility ................................... 71
15. Application Design Guide .................................... 72
15.1. Download and Debug Port ................................ 72
16. Conformity Assessment Issues (Problèmes d'évaluation de
conformité)...................................................... 73
17. Safety Recommendations ...................................... 76
18. Document History ............................................ 77

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1. Introduction
1.1. Scope
The aim of this document is the description of typical hardware solutions useful for
developing a product with the Telit DE910 module.
1.2. Audience
This document is intended for Telit customers who are about to implement their applications
using our DE910 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:
[e-mail]
[e-mail]
[e-mail]
TS-A[email protected]
Alternatively, use:
http://www.telit.com/en/products/technical-support-center/contact.php
For detailed information about where to 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
Technical Support Center (TTSC).
Our aim is to make this guide as helpful as possible. Please keep us informed of 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: “General Product Description” gives an overview of the features of the product.
Chapter 3: “DE910 Module Connections” deals with the pin out configuration and layout.
Chapter 4: “Hardware Commands” How to operate the module via hardware.
Chapter 5: “Power supply” Power supply requirements and general design rules.
Chapter 6: “Antenna” The antenna connection and board layout design are the most important
parts in the full product design.
Chapter 7: “USB Port” The USB port on the Telit DE910 is the core of the interface between
the module and OEM hardware.
Chapter 8: “Serial ports” Refers to the serial ports of the Telit DE910.
Chapter 9: “Audio Section overview” Refers to the audio blocks of the Base Band Chip of the
DE910 Telit Module.
Chapter 10: “General Purpose I/O” How the general purpose I/O pads can be configured.
Chapter 11: “DAC and ADC section” Deals with these two kinds of converters.
Chapter 12: “Test Pont” Deals with Test Point.
Chapter 13: “Mounting the DE910 on the application board” Mechanical dimensions and
recommendations on how to mount the module on the user’s board.
Chapter 14: “Packing System” Deals with packing system.
Chapter 15: “Application Design Guide” Deals with the design of host system for download
or upgrade.
Chapter 16: “Conformity Assessment Issues” provides some fundamental hints about the
conformity assessment that the final application might need.
Chapter 17: “Safety Recommendation” provides some safety recommendations that must be
followed by the customer in the design of the application that makes use of the Telit DE910.

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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, 80000NT10061A
 Product Description, 80392ST10096A
 Telit EVK2 User Guide, 1vv0300704

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2. General Product Description
2.1. Overview
The aim of this document is the description of typical hardware solutions useful for
developing a product with the Telit DE910 module.
In this document all the basic functions of a mobile device 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 all hardware solutions and products that may be designed. Avoiding the discussed
wrong solutions must be considered as mandatory. While the suggested hardware
configurations must not be considered mandatory, the information given must be used as a
guide and a starting point for properly developing a product with the Telit DE910 module.
NOTE:
The integration of the CDMA 1xRTT/1xEV-DO Rev. A module within a user application
must 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 Communication S.p.A. for its use, such as any
infringement of patents or other rights of third parties. No license is granted by implication or
otherwise under any patent rights of Telit Communication S.p.A. other than for circuitry
embodied in Telit products. This document is subject to change without notice.

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2.2. Product Specifications
DE910 Specifications
Air Interface 
CDMA
1xRTT
 CDMA 1xEV-DO Rev. A
Frequency Bands 
DE910
-
DUAL:
800/1900MHz
 DE910-SC: 800MHz
Data Service

CDMA 1x
RTT
: 153.6 Kbps (full
-
duplex)
 CDMA 1xEV-DO Rev. A: 3.1Mbps (F/L),
1.8Mbps (R/L)
Location solution gpsOne
Max. RF out power

CDMA BC0:
Power class 3
(
24.4dBm
) for 1xRTT
,
Power class 3 (24dBm) for 1xEV-DO
 CDMA BC1: Power class 2 (24.4dBm) for 1xRTT,
Power class 2 (24dBm) for 1xEV-DO
Typical conducted sensitivity
a.
CDMA
 1xRTT: Better than –108dBm
 1xEV-DO: Better than –109dBm
b. GNSS
 Acquisition sensitivity: –145dBm
 Navigation sensitivity: –160dBm
 Tracking sensitivity: –161dBm
 Cold-start sensitivity: –145dBm
 TTFF: 32 sec @–130dBm
Device dimensions 28.2mm(L) x 28.2mm(W) x 2.05mm(T)
Weight 3.8g
Storage and Operating
Temperature Range –40 ~ +85°C
Normal operating voltage range
3.4 ~ 4.2V
IO voltage 1.8V
Hardware design  RX diversity on all band
Interface

144
Land
-
Grid
-
Array
interface
 10 general I/O ports maximum including multi-
functional I/Os
 State LED output
 1 A/D converter
 1 D/A converter (PDM output)
 Full RS232 CMOS UART: baud rate up to 4Mbps
 Reserved two wires CMOS UART for debugging
 USB 2.0: baud rate up to 480Mbps
Antenna

Primary a
ntenna
 RX Diversity antenna
 GPS&GLONASS antenna

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Audio PCM interface for Digital audio
Message SMS (MO/MT)
Approvals

Regulatory:
- DE910-DUAL: FCC, IC
- DE910-SC: CCC, SRRC
 Carrier: Verizon, Sprint, Aeris
2.3. RoHS Compliance
As a part of Telit’s corporate policy of environmental protection, the DE910 complies with
the RoHS (Restriction of Hazardous Substances) directive of the European Union (EU
Directive 2011/65/EU).

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3. DE910 Module Connections
3.1. Pin-Out
Pin
Signal I/O
Function Type
USB HS 2.0 Communication Port
B15
USB_D+
I/O
USB differential Data(+)
C15
USB_D
-
I/O
USB differential Data(
-
)
A13
VBUS
I
Power sense for the internal USB transceiver
5V
Asynchronous UART
–
Prog. / data +HW Flow Control
N15
C103/TXD
I
Seria
l 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 Data terminal ready signal (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
Outp
ut for Clear to send signal (CTS) to DTE
CMOS
1.8V
N14
C109/DCD
O
Output for Data carrier detect signal (DCD) to DTE
CMOS
1.8V
P14
C107/DSR
O
Output for Data set ready signal (DSR) to DTE
CMOS
1.8V
R14
C125/RING
O
Output for Ring indicator signal (RI) t
o DTE
CMOS
1.8V
Asynchronous Auxiliary UART
D15
TX_
AUX
O
Auxillary UART (TX Data to DTE)
CMOS
1.8V
E15
RX_
AUX
I
Auxillary UART (RX Data from DTE)
CMOS
1.8V
RUIM Card Interface
A3
RUIM
VCC
-
External
RUIM
signal
-
Power supply for the SIM
1.8/3V
A5
RUI
M
IO
I/O
External
RUIM
signal
-
Data I/O
1.8/3V
A6
RUIM
CLK
O
External
RUIM
signal
-
Clock
1.8/3V
A7
RUIM
RST
O
External
RUIM
signal
-
Reset
1.8/3V
Digital Voice interface (DVI)
B
9
D
VI_WA0
I/O
Digital Voice interface (WA0)
CMOS 1.8V
B
6
DVI_RX
I
Digital
Voice interface (RX)
CMOS 1.8V
B
7
DVI_TX
O
Digital Voice interface (TX)
CMOS 1.8V
B8
DVI_CLK
I/O
Digital Voice interface (CLK)
CMOS 1.8V
Digital IO
C8
GPIO_01
I/O
GPIO_01 / STAT LED
CMOS 1.8V
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 / DAC_OUT
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
C
MOS 1.8V
ADC Section
B1
ADC
_IN1
AI
Analog/Digital converter input
A/D
RF Section

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Pin
Signal I/O
Function Type
K1
ANTENNA
I/O
CDMA Antenna (50Ohm)
RF
F1
ANT_DIV
I
CDMA Antenna Diversity Input (50Ohm)
RF
GPS Section
R9
ANT_GPS
I
GPS Antenna (50Ohm)
RF
R7
GPS_LNA_EN
O
Output enab
le for External LNA supply
CMOS
1.8V
Miscellaneous Function
R13 HW_SHUTDOWN* I Hardware unconditional shutdown
CMOS 1.8V
Open collector
R12 ON_OFF* I Input Command for Power ON/Software shutdown
CMOS 1.8V
Open collector
C14
VRTC
I
VRTC Backup Capacitor
Power
R11 VAUX/PWRMON O
Supply Output for external accessories / Power ON
Monitor 1.8V
Test Point
C3
TP1
Test Point
TP
C4
TP2
Test Point
TP
C5
TP3
Test Point
TP
C6
TP4
Test Point
TP
C7
TP5
Test Point
TP
D3
TP6
Test Point
TP
E3
TP7
Test Po
int
TP
Power Supply
M
1
VBATT
-
Main Power Supply (Baseband)
Power
M
2
VBATT
-
Main Power Supply (Baseband)
Power
N
1
VBATT_PA
-
Main Power Supply (PAM)
Power
N
2
VBATT_PA
-
Main Power Supply (PAM)
Power
P
1
VBATT_PA
-
Main Power Supply (PAM)
Power
P
2
VB
ATT_PA
-
Main Power Supply (PAM)
Power
E
1
GND
-
Ground
G
1
GND
-
Ground
H
1
GND
-
Ground
J
1
GND
-
Ground
L
1
GND
-
Ground
A
2
GND
-
Ground
E
2
GND
-
Ground
F
2
GND
-
Ground
G
2
GND
-
Ground
H
2
GND
-
Ground
J2
GND
-
Ground
K2
GND
-
Ground
L2
GND
-
Ground
R2
GND
-
Ground
M3
GND
-
Ground
N3
GND
-
Ground
P3
GND
-
Ground
R3
GND
-
Ground
D4
GND
-
Ground

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Pin
Signal I/O
Function Type
M4
GND
-
Ground
N4
GND
-
Ground
P4
GND
-
Ground
R4
GND
-
Ground
N5
GND
-
Ground
P5
GND
-
Ground
R5
GND
-
Ground
N6
G
ND
-
Ground
P6
GND
-
Ground
R6
GND
-
Ground
P8
GND
-
Ground
R8
GND
Ground
P9
GND
-
Ground
P10
GND
-
Ground
R10
GND
-
Ground
M12
GND
-
Ground
B13
GND
-
Ground
P13
GND
-
Ground
E14
GND
-
Ground
Reserved
C1
Reserved
-
Reserved
D1
R
eserved
-
Reserved
B2
Reserved
-
Reserved
C2
Reserved
-
Reserved
D2
Reserved
-
Reserved
B3
Reserved
-
Reserved
F3
Reserved
-
Reserved
G3
Reserved
-
Reserved
H3
Reserve
d
-
Reserved
J3
Reserved
-
Reserved
K3
Reserved
-
Reserved
L3
Reserved
-
Reserved
A4
Reserved
-
Reserved
B4
Reserved
-
Reserved
B5
Reserved
-
Reserved
N7
Reserved
-
Reserved
P7
Reserved
-
Reserved
A8
Reserved
-
Reserved
N8
Reserved
-
Reserved
A9
Reserved
-
Reserved
N9
Reserved
-
Reserved
A10
Reserved
-
Reserved
B10
Reserved
-
Reserved
B11
Reserved
-
Reserved
N10
Reserved
-
Rese
rved
A11
Reserved
-
Reserved
N11
Reserved
-
Reserved

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Pin
Signal I/O
Function Type
P11
Reserved
-
Reserved
A12
Reserved
-
Reserved
B12
Reserved
-
Reserved
D12
Reserved
-
Reserved
N12
Reserved
-
Reserved
P12
Reserved
-
Reserved
D13
Reserved
-
Reserved
E13
Reserved
-
Reserved
F13
Reserved
-
Reserved
G13
Reserved
-
Reserved
H13
Reserved
-
Reserved
J13
Reserved
-
Reserved
K13
Reserved
-
Reserved
L13
Reserved
-
Reserved
M13
Reserved
-
Reserved
N13
Reserved
-
Reserved
A14
Reserved
-
Reserved
D14
Reserve
d
-
Reserved
F14
Reserved
-
Reserved
G14
Reserved
-
Reserved
H14
Reserved
-
Reserved
J14
Reserved
-
Reserved
K14
Reserved
-
Reserved
F15
Reserved
-
Reserved
H15
Reserved
-
Reserved
J15
Reserved
-
Reserved
NOTE:
RUIM interface is reserved for Verizon/Sprint/Aeris variants and it is applicable only to
RUIM variants of DE910 (DE910-SC)
WARNING:
Reserved pins must not be connected.
NOTE:
The following table is listing the main Pinout differences between the DE910 variants.
Product BC0 BC1 GPS Notes
DE910-DUAL Yes Yes Yes Reserved pads: A3, A5, A6, A7
DE910-SC Yes No Yes

DE910 Series Hardware User Guide
1vv0300951 Rev.9 – 2015-05-11
Reproduction forbidden without written authorization from Telit Communications S.p.A. - All Rights
Reserved. Page 18 of 77
NOTE:
Almost all pins not in use must be left disconnected. The only exceptions are the following
pins:
PAD Signal
M
1,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,N
4,P4,R4,N5,P5,R5,N6,P
6,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
C15 USB_D-
If not used should be connected to
a Test Point
A13 VBUS
If not used should be connected to
a Test Point
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
F1 ANT_DIV (If supported
by the product)
If not used
it could be left
unconnected, but has to be
disabled by the related AT
Command (AT#RXDIV): please
refer to the AT User Guide for the
related syntax
R9
ANT_GPS (If supported
by the product)
If the GPS is not used it could be
left unconnected
C3,C4,C5,C6,C7,D3,E3
Test Point
RTS must 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 incorporating the module.

DE910 Series Hardware User Guide
1vv0300951 Rev.9 – 2015-05-11
Reproduction forbidden without written authorization from Telit Communications S.p.A. - All Rights
Reserved. Page 19 of 77
3.1.1. LGA Pads Layout (DE910-DUAL)
A B C D E F G H J K L M N P R
1 ADC_IN1 RES RES GND ANT_DIV GND GND GND ANTENNA G ND VBATT VBATT_PA VBATT_PA 1
2 GND RES RES RES GND GND GND GND GND GND GND VBATT VBATT_PA VBATT_PA GND 2
3RES RES TP1 TP6 TP7 RES RES RES RES RES RES GND GND GND GND 3
4RES RES TP2 GND GND GND GND GND 4
5RES RES TP3 GND GND GND 5
6RES DVI_RX TP4 GND GND GND 6
7RES DVI_TX TP5 RES RES GPS_LNA_E
N7
8RES DVI_CLK GPIO_01 RES GND GND 8
9RES DVI_WA0 GPIO_02 RES GND ANT_GPS 9
10 RES RES GPIO_03 RES GND GND 10
11 RES RES GPIO_04 RES RES VAUX/PWR
MON 11
12 RES RES GPIO_06 RES GND RES RES ON_OFF* 12
13 USB_VBUS GND GPIO_07 RES RES RES RES RES RES RES RES RES RES GND HW_SHUTD
OWN* 13
14 RES GPIO_05 VRTC RES GND RES RES RES RES RES C105/RTS C108/DTR C109/DCD C107/DSR C125/RING 14
15 USB_D+ USB_D- TX_AUX RX_ AUX RES GPIO_10 RES RES GPIO_08 GPIO_09 C104/RXD C103/TXD C106/CTS 15
A B C D E F G H J K L M N P R
Top View
NOTE:
The pin defined as RES must be considered RESERVED and not connected on any pin in the
application. The related area on the application has to be kept empty.

DE910 Series Hardware User Guide
1vv0300951 Rev.9 – 2015-05-11
Reproduction forbidden without written authorization from Telit Communications S.p.A. - All Rights
Reserved. Page 20 of 77
3.1.2. LGA Pads Layout (DE910-SC)
A B C D E F G H J K L M N P R
1 ADC_IN1 RES RES GND ANT_DIV GND GND GND ANTENNA G ND VBATT VBATT_PA VBATT_PA 1
2 GND RES RES RES GND GND GND GND GND GND GND VBATT VBATT_PA VBATT_PA GND 2
3 RUIM VCC RES TP1 TP6 TP7 RES RES RES RES RES R ES GND GND GND GND 3
4RES RES TP2 GND GND GND GND GND 4
5 RUIMIO RES TP3 GND GND GND 5
6 RUIM CLK DVI_RX TP4 GND GND GND 6
7 RUIM RST DVI_TX TP5 RES RES GPS_LNA_E
N7
8RES DVI_CLK GPIO_01 RES GND GND 8
9RES DVI_WA0 GPIO_02 RES GND ANT_GPS 9
10 RES RES GPIO_03 RES GND GND 10
11 RES RES GPIO_04 RES RES VAUX/PWR
MON 11
12 RES RES GPIO_06 RES GND RES RES ON_OFF* 12
13 USB_VBUS GND GPIO_07 RES RES RES RES RES RES RES RES RES RES GND HW_SHUTD
OWN* 13
14 RES GPIO_05 VRTC RES GND RES RES RES RES RES C105/RTS C108/DTR C109/DCD C107/DSR C125/RING 14
15 USB_D+ USB_D- TX_AUX RX_ AUX RES GPIO_10 RES RES GPIO_08 GPIO_09 C104/RXD C103/TXD C106/CTS 15
A B C D E F G H J K L M N P R
Top View
NOTE:
The pin defined as RES must be considered RESERVED and not connected on any pin in the
application. The related area on the application has to be kept empty.