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DE910 Series

Telit Wireless Solutions DE910 Series Hardware User's Manual

DE910 Series Hardware User Guide
1vv0300951 Rev.9 – 2015-05-11
DE910 Series Hardware User Guide
1vv0300951 Rev.9 – 2015-05-11
APPLICABILITY TABLE
PRODUCT
DE910
-
DUAL
DE910
-SC
DE910 Series Hardware User Guide
1vv0300951 Rev.9 – 2015-05-11
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.
DE910 Series Hardware User Guide
1vv0300951 Rev.9 – 2015-05-11
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.
DE910 Series Hardware User Guide
1vv0300951 Rev.9 – 2015-05-11
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
DE910 Series Hardware User Guide
1vv0300951 Rev.9 – 2015-05-11
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:
TS-EMEA@telit.com TS-NORTHAMERICA@telit.com TS-LATINAMERICA@telit.com TS-APAC@telit.com
Alternatively, use:
http://www.telit.com/en/products/technical-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.
DE910 Series Hardware User Guide
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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.
DE910 Series Hardware User Guide
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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
DE910 Series Hardware User Guide
1vv0300951 Rev.9 – 2015-05-11
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
DE910 Series Hardware User Guide
1vv0300951 Rev.9 – 2015-05-11
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).
DE910 Series Hardware User Guide
1vv0300951 Rev.9 – 2015-05-11
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
RUIMIO 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)
B9
D
VI_WA0
I/O Digital Voice interface (WA0)
CMOS 1.8V
B6
DVI_RX
I
Digital
Voice interface (RX)
CMOS 1.8V
B7
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
CMOS 1.8V
ADC Section
B1
ADC
_IN1
AI
Analog/Digital converter input
A/D
RF Section
DE910 Series Hardware User Guide
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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
M1
VBATT
-
Main Power Supply (Baseband)
Power
M2
VBATT
-
Main Power Supply (Baseband)
Power
N1
VBATT_PA
-
Main Power Supply (PAM)
Power
N2
VBATT_PA
-
Main Power Supply (PAM)
Power
P1
VBATT_PA
-
Main Power Supply (PAM)
Power
P2
VB
ATT_PA
-
Main Power Supply (PAM)
Power
E1
GND
-
Ground
G1
GND
-
Ground
H1
GND
-
Ground
J1
GND
-
Ground
L1
GND
-
Ground
A2
GND
-
Ground
E2
GND
-
Ground
F2
GND
-
Ground
G2
GND
-
Ground
H2
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
DE910 Series Hardware User Guide
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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
GND -
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
DE910 Series Hardware User Guide
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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
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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
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 ANT ENNA GND VBATT VBAT T_PA VBATT_ PA 1
2 GND RES RES RES GND GND GND GND GND GND GND VBATT VBAT T_PA VBATT_ PA GND 2
3 RES RES TP1 TP6 TP7 RES RES R ES RES RES RES GND GND GND GND 3
4 RES RES TP2 GND GND GND GND GND 4
5 RES RES TP3 GND GND GND 5
6 RES DVI_RX TP4 GND GND GND 6
7 RES DVI_TX T P5 RES RES
GPS_LNA_E
N
7
8 RES DVI_CL K GPIO_01 RES GND GND 8
9 RES DVI_WA0 GPIO_02 RES GND ANT_GPS 9
10 RES R ES GPIO_03 RES GND GND 10
11 RES R ES GPIO_04 RES RES
VAUX/PW R
MON
11
12 RES R ES GPIO_06 RES GND RES RES ON_OFF* 12
13 USB_VBUS GND GPIO_07 R ES R ES RES RES RES RES RES R ES RES RES GND
HW_S HUTD
OWN*
13
14 RES GPIO_ 05 VRT C RES G ND RES RES RES RES RES C105/RT S 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_0 9 C104/RXD C103/T XD 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
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 ANT ENNA GND VBATT VBAT T_PA VBATT_ PA 1
2 GND RES RES RES GND GND GND GND GND GND GND VBATT VBAT T_PA VBATT_ PA GND 2
3 RUIMVCC RES TP1 TP6 T P7 RES RES RE S RES RES RES GND GND GND GND 3
4 RES RES TP2 GND GND GND GND GND 4
5 RUIMIO R ES TP3 GND GND GND 5
6 RUIMCLK DVI_RX TP4 GND GND GND 6
7 RUIMRST DVI_T X TP5 RES RES
GPS_LNA_E
N
7
8 RES DVI_CL K GPIO_01 RES GND GND 8
9 RES DVI_WA0 GPIO_02 RES GND ANT_GPS 9
10 RES R ES GPIO_03 RES GND GND 10
11 RES R ES GPIO_04 RES RES
VAUX/PW R
MON
11
12 RES R ES GPIO_06 RES GND RES RES ON_OFF* 12
13 USB_VBUS GND GPIO_07 R ES R ES RES RES RES RES RES R ES RES RES GND
HW_S HUTD
OWN*
13
14 RES GPIO_ 05 VRT C RES G ND RES RES RES RES RES C105/RT S 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_0 9 C104/RXD C103/T XD 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
4. Hardware Commands
4.1. Turning on the DE910 module
To turn on the DE910, the pad ON_OFF* must be tied low for at least 1 second and then released.
The maximum current that can be drained from the ON_OFF* pad is 0.1 mA.
A simple circuit to power on the module is illustrated below:
4.1.1. Initialization and Activation State
Upon turning on DE910 module, the DE910 module is not active yet because the boot sequence of DE910 is still executing internally. It takes about 10 seconds to complete the initialization of the module internally.
For this reason, it would be useless to try to access DE910 during the Initialization state as below. The DE910 module needs at least 10 seconds after the PWRMON goes High to become operational by reaching the activation state.
DE910 Series Hardware User Guide
1vv0300951 Rev.9 – 2015-05-11
During the Initialization state, any kind of AT-command is not available. DTE must wait for the Activation state to communicate with DE910.
To check if the DE910 has powered on, the hardware line PWRMON must be monitored. When PWRMON goes high, the module has powered on.
NOTE:
Do not use any pull up resistor on the ON_OFF* line. It is pulled up internally. Using a pull up resistor may bring latch up problems on the DE910 power regulator and improper power on/off of the module. The line ON_OFF* must be connected only in open collector configuration.
NOTE:
In this document all the lines are inverted. Active low signals are labeled with a name that ends with "*" or with a bar over the name.
NOTE:
In order to avoid a back powering effect it is recommended to avoid having any HIGH logic level signal applied to the digital pins of the DE910 module when the module is powered OFF or during an ON/OFF transition.
For example:
1. To drive the ON_OFF* pad with a totem pole output of a +3/5 V microcontroller
(uP_OUT1):
2. To drive the ON_OFF* pad directly with an ON/OFF button:
DE910 Series Hardware User Guide
1vv0300951 Rev.9 – 2015-05-11
4.2. Turning off the DE910 module
Turning off the device can be done in two ways:
By software command (see DE910 Software User Guide)
By hardware shutdown
When the device is shut down by software command or by hardware shutdown, it issues a detach request to the network that informs the network that the device will no longer be reachable.
NOTE:
In order to avoid a back powering effect it is recommended to avoid having any HIGH logic level signal applied to the digital pins of the DE910 when the module is powered OFF or during an ON/OFF transition.
The following flow chart shows the proper turnoff procedure:
DE910 Series Hardware User Guide
1vv0300951 Rev.9 – 2015-05-11
4.2.1. Shutdown by Software Command
The DE910 can be shut down by a software command.
When a shutdown command is sent, the DE910 goes into the finalization state and will shut down PWRMON at the end of this state.
The period of the finalization state can vary according to the state of the DE910 so it cannot be fixed definitely.
Normally it will be above 10 seconds after sending a shutdown command and DTE should monitor the status of PWRMON to see the actual power off.
TIP:
To check if the device has powered off hardware line PWRMON must be monitored. When PWRMON goes low, the device has powered off.
4.2.2. Hardware Shutdown
To turn OFF the DE910 the pad ON_OFF* must be tied low for at least 2 seconds and then released. The same circuitry and timing for the power on must be used.
When the hold time of ON_OFF* is above 2 seconds, the DE910 goes into the finalization state and will shut down PWRMON at the end of this state.
The period of the finalization state can vary according to the state of the DE910 so it cannot be fixed definitely.
Normally it will be above 10 seconds after releasing ON_OFF* and DTE should monitor the status of PWRMON to see the actual power off.
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