Telit Communications S p A DE910-DUAL User Manual

DE910 Series Hardware User Guide

1vv0300951 Rev.9 – 2015-05-11

PRODUCT

DE910

-

DUAL

DE910

-SC

DE910 Series Hardware User Guide

1vv0300951 Rev.9 – 2015-05-11

APPLICABILITY TABLE

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.

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.

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.

DE910 Series Hardware User Guide

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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.

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.

DE910 Series Hardware User Guide

1vv0300951 Rev.9 – 2015-05-11

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.

CDMA

1xRTT

DE910

-

DUAL:

800/1900MHz

CDMA 1x

RTT

: 153.6 Kbps (full

-

duplex)

CDMA BC0:

Power class 3

(24.4dBm

) for 1xRTT

,

a. CDMA

Storage and Operating

144

Land

-

Grid

-

Array

interface

Primary a

ntenna

DE910 Series Hardware User Guide

2.2. Product Specifications

DE910 Specifications

1vv0300951 Rev.9 – 2015-05-11

Air Interface

Frequency Bands

Data Service

Location solution

Max. RF out power

Typical conducted sensitivity

Device dimensions

  CDMA 1xEV-DO Rev. A   DE910-SC: 800MHz   CDMA 1xEV-DO Rev. A: 3.1Mbps (F/L),

1.8Mbps (R/L)

gpsOne



Power class 3 (24dBm) for 1xEV-DO

 CDMA BC1: Power class 2 (24.4dBm) for 1xRTT,

Power class 2 (24dBm) for 1xEV-DO

 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

28.2mm(L) x 28.2mm(W) x 2.05mm(T)

Weight

Temperature Range

Normal operating voltage range

IO voltage

Hardware design

Interface

Antenna

3.8g

–40 ~ +85°C

3.4 ~ 4.2V

1.8V

 RX diversity on all band

  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   RX Diversity antenna  GPS&GLONASS antenna

Regulatory:

DE910 Series Hardware User Guide

1vv0300951 Rev.9 – 2015-05-11

Audio

Message

Approvals

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).

PCM interface for Digital audio

SMS (MO/MT)



- DE910-DUAL: FCC, IC

- DE910-SC: CCC, SRRC

 Carrier: Verizon, Sprint, Aeris

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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3. DE910 Module Connections

3.1. Pin-Out

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

CMOS 1.8V

C14

VRTC

I

VRTC Backup Capacitor

Power

Supply Output for external accessories / Power ON

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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R13

R12

R11

Signal I/O

Function Type

HW_SHUTDOWN* I Hardware unconditional shutdown

ON_OFF* I Input Command for Power ON/Software shutdown

VAUX/PWRMON O

Monitor

Open collector

1.8V

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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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

DE910 Series Hardware User Guide

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Signal I/O

Function Type

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

DE910-SC

Yes Yes Yes Reserved pads: A3, A5, A6, A7

Yes No Yes

M

1,M2,N1,N2,P1,P2

VBATT&VBATT_PA

E1,G1,H1,J1,L1,A2,E2,

R12 ON_OFF*

If not used should be connected to

If the flow control is not used it

If not used should be connected to

K1 Main Antenna

If not used

it could be left

ANT_GPS (If supported

If the GPS is not used it could be

DE910 Series Hardware User Guide

1vv0300951 Rev.9 – 2015-05-11

NOTE:

Almost all pins not in use must be left disconnected. The only exceptions are the following pins:

PAD Signal

F2,G2,H2,J2,K2,L2,R2, M3,N3,P3,R3,D4,M4,N 4,P4,R4,N5,P5,R5,N6,P

GND

6,R6,P8,R8,P9,P10,R10, M12,B13,P13,E14

R13 HW_SHUTDOWN*

B15 USB_D+

C15 USB_D-

A13 VBUS

N15 C103/TXD

M15 C104/RXD

L14 C105/RTS

P15 C106/CTS

D15 TXD_AUX

E15 RXD_AUX

F1

ANT_DIV (If supported by the product)

a Test Point

should be connected to GND

a Test Point

unconnected, but has to be disabled by the related AT Command (AT#RXDIV): please refer to the AT User Guide for the related syntax

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.

R9

by the product)

C3,C4,C5,C6,C7,D3,E3 Test Point

left unconnected

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 ANTENNA GND VBATT VBAT T_PA VBATT _PA 1

2 GND R ES RES RES GND G ND GND GND GND GND GND VBATT VBATT_ PA VB ATT_PA GND 2

3 RES RES TP1 TP6 TP7 RES RES RES RES RE S R ES GND GND GND GND 3

4 RES RES TP2 GND GND GND GND G ND 4

5 RES RES TP3 GND GND GND 5

6 RES DVI_RX TP4 GND GND GND 6

7 RES DVI_TX TP5 RES RES

8 RES DVI_ CLK GPIO_01 RES GND GND 8

9 RES DVI_W A0 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

12 RES R ES GPIO_06 RES GND RES RES ON_OFF* 12

13 USB_VBUS GND GPIO_07 RES RES RE S RES R ES RES R ES R ES RES RES GND

14 RES GP IO_05 VRT C RES GND RES RES R ES 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 R ES R ES GPI O_08 GPIO_ 09 C104/RXD C103/T XD C1 06/CTS 15

A B C D E F G H J K L M N P R

GPS_LNA_E

N

VAUX/PW R

MON

HW_ SHUTD

OWN*

Top View

7

11

13

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 ANTENNA GND VBATT VBAT T_PA VBATT _PA 1

2 GND R ES RES RES GND G ND GND GND GND GND GND VBATT VBATT_ PA VB ATT_PA GND 2

3 RUIMVCC RES TP1 TP6 T P7 RES RES R ES RES RES R ES G ND GND GND G ND 3

4 RES RES TP2 GND GND GND GND G ND 4

5 RUIMIO RES T P3 GND GND GND 5

6 RUIMCLK DVI_RX TP4 GND GND GND 6

7 RUIMRST DVI_T X TP5 RES RES

8 RES DVI_ CLK GPIO_01 RES GND GND 8

9 RES DVI_W A0 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

12 RES R ES GPIO_06 RES GND RES RES ON_OFF* 12

13 USB_VBUS GND GPIO_07 RES RES RE S RES R ES RES R ES R ES RES RES GND

14 RES GP IO_05 VRT C RES GND RES RES R ES 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 R ES R ES GPI O_08 GPIO_ 09 C104/RXD C103/T XD C1 06/CTS 15

A B C D E F G H J K L M N P R

GPS_LNA_E

N

VAUX/PW R

MON

HW_ SHUTD

OWN*

Top View

7

11

13

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.

Telit Communications S p A DE910-DUAL User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual