Telit Communications S p A UL865NA User Guide

UL865 Hardware User Guide

1VV0301050 Rev 2 – 2013-10-09

UL865 Hardware User Guide

1VV0301050 Rev 2 – 2013-10-09

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
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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.

UL865 Hardware User Guide

1VV0301050 Rev 2 – 2013-10-09

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,
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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

UL865 Hardware User Guide

1VV0301050 Rev 2 – 2013-10-09

Contents

UL865 Hardware User Guide

1VV0301050 Rev 2 – 2013-10-09

UL865 Hardware User Guide

1VV0301050 Rev 2 – 2013-10-09

UL865 Hardware User Guide

1VV0301050 Rev 2 – 2013-10-09

The aim of this document is the description of some hardware solutions useful for developing
a product with the Telit UL865 module.

This document is intended for Telit customers, who are integrators, about to implement their
applications using our UL865 modules.

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]
[e-mail]

Alternatively, use:

http://www.telit.com/en/products/technical-support-center/contact.php

For detailed information about where you can buy the Telit modules or for recommendations
on accessories and components visit:

http://www.telit.com

To register for product news and announcements or for product questions contact Telit
Technical Support Center (TTSC).

Our aim is to make this guide as helpful as possible. Keep us informed of your comments and
suggestions for improvements.

Telit appreciates feedback from the users of our information.

UL865 Hardware User Guide

1VV0301050 Rev 2 – 2013-10-09

This document contains the following chapters:

Chapter 1: “Introduction” provides a scope for this document, target audience, contact and support
information, and text conventions.

Chapter 2: “Overview” provides an overview of the document.

Chapter 3: “UL865 Mechanical Dimensions”

Chapter 4: “UL865 Module Connections” deals with the pin out configuration and layout.

Chapter 5: “Hardware Commands” How to operate on the module via hardware.

Chapter 6: “Power supply” Power supply requirements and general design rules.

Chapter 7: “GSM/WCDMA Radio Section” The antenna connection and board layout design are the
most important parts in the full product design.

Chapter 8: “Logic Level specifications” Specific values adopted in the implementation of logic levels
for this module.

Chapter 9: “USB ports” The serial port on the Telit UL865 is the core of the interface between the
module and OEM hardware

Chapter 10: “Serial ports” The serial port on the Telit UL865 is the core of the interface between the
module and OEM hardware

Chapter 11: “Audio Section overview”

Chapter 12: “General Purpose I/O” How the general purpose I/O pads can be configured.

Chapter 13 “DAC and ADC Section” Deals with these two kind of converters.

Chapter 14: “Mounting the UL865 on the application board” Recommendations and specifics on how
to mount the module on the user’s board.

Chapter 15: “Packaging system” Recommendations and specifics on how the system is packaged.

Chapter 16: “Conformity Assessment Issues”

Chapter 17: “Safety Recommendations”

UL865 Hardware User Guide

1VV0301050 Rev 2 – 2013-10-09

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.

Digital Voice Interface Application Note 80000NT10050A
SPI Port Application Note 80000NT10053A
SIM Holder Design Guides 80000NT10001a
AT Commands Reference Guide 80378ST10091A
Telit EVK2 User Guide 1vv0300704

Revision

Date

Changes

0

2013-02-21

Preliminary Version

1

2013-04-16

6.2, 7.1, 7.2, 7.2.1, 9.1

2

2013-08-02

2, 3, 5, 6.1, 13.8, 15,6, 15.9, 16.3, added Reel Packaging,
added Conformity Assessment Issues

UL865 Hardware User Guide

1VV0301050 Rev 2 – 2013-10-09

UL865 Hardware User Guide

1VV0301050 Rev 2 – 2013-10-09

The aim of this document is the description of some hardware solutions useful for developing
a product with the Telit UL865 module.

In this document all the basic functions of a mobile phone will be taken into account; for each
one of them a proper hardware solution will be suggested and eventually the wrong solutions
and common errors to be avoided will be evidenced. Obviously this document cannot
embrace all hardware solutions and products that may be designed. Avoiding the wrong
solutions shall be considered as mandatory. While the suggested hardware configurations
shall not be considered mandatory, the information given shall be used as a guide and a
starting point for properly developing your product with the Telit UL865 module. For further
hardware details that may not be explained in this document refer to the Telit UL865 Product
Description document where all the hardware information is reported.

NOTICE:

(EN) The integration of the GSM/GPRS/WCDMA UL865 cellular module within user application
shall be done according to the design rules described in this manual.

(IT) L’integrazione del modulo cellulare GSM/GPRS/WCDMA UL865 all’interno dell’applicazione
dell’utente dovrà rispettare le indicazioni progettuali descritte in questo manuale.

(DE) Die Integration des UL865 GSM/GPRS/WCDMA Mobilfunk-Moduls in ein Gerät muß gemäß
der in diesem Dokument beschriebenen Kunstruktionsregeln erfolgen.

(SL) Integracija GSM/GPRS/WCDMA UL865 modula v uporabniški aplikaciji bo morala upoštevati
projektna navodila, opisana v tem priročniku.

(SP) La utilización del modulo GSM/GPRS/WCDMA UL865 debe ser conforme a los usos para los
cuales ha sido deseñado descritos en este manual del usuario.

(FR) L’intégration du module cellulaire GSM/GPRS/WCDMA UL865 dans l’application de
l’utilisateur sera faite selon les règles de conception décrites dans ce manuel.

(HE)

The information presented in this document is believed to be accurate and reliable. However,
no responsibility is assumed by Telit Communications S.p.A. for its use, nor any infringement
of patents or other rights of third parties which may result from its use. No license is granted
by implication or otherwise under any patent rights of Telit Communications S.p.A. other
than for circuitry embodied in Telit products. This document is subject to change without
notice.

UL865 Hardware User Guide

1VV0301050 Rev 2 – 2013-10-09

The UL865 overall dimensions are:

Length: 24.4 mm
Width: 24.4 mm
Thickness: 2.6 mm
Weight 4 g

Pad

Signal

I/O

Function

Note

Type

Audio

18

USB_D+

I/O

USB differential Data (+)

17

USB_D-

I/O

USB differential Data (-)

16

USB_VBUS

AI

Power sense for the internal USB transceiver.

SIM card interface

9

SIMVCC

-

External SIM signal – Power supply for the SIM

1,8 / 3V

10

SIMRST

O

External SIM signal – Reset

1,8 / 3V

11

SIMCLK

O

External SIM signal – Clock

1,8 / 3V

12

SIMIO

I/O

External SIM signal – Data I/O

4.7k Pull up

1,8 / 3V

X

All GPI0

can be

program

med

SIMIN

I

Presence SIM input

CMOS 1.8V

Auxiliary

44

RXD_AUX
/SPI_MISO

I O Auxiliary UART (RX Data)

SPI_MISO

CMOS 1.8V

45

TXD_AUX /

SPI_MOSI

O I Auxiliary UART (TX Data)

SPI_MOSI

CMOS 1.8V

Prog. / Data + HW Flow Control

1

C109/DCD/GPO

O

Output for Data carrier detect signal (DCD) to DTE
/ GP output

CMOS 1.8V

2

C125/RING/GPO

O

Output for Ring indicator signal (RI) to DTE
/ GP output

CMOS 1.8V

3

C107/DSR/GPO

O

Output for Data set ready signal (DSR) to DTE
/ GP output

CMOS 1.8V

4

C108/DTR/GPI

I

Input for Data terminal ready signal (DTR) from DTE
/ GP input

CMOS 1.8V

5

C105/RTS/GPI

I

Input for Request to send signal (RTS) from DTE
/ GP input

CMOS 1.8V

6

C106/CTS/GPO

O

Output for Clear to send signal (CTS) to DTE
/ GP output

CMOS 1.8V

7

C103/TXD

I

Serial data input (TXD) from DTE

CMOS 1.8V

8

C104/RXD

O

Serial data output to DTE

CMOS 1.8V

DAC and ADC

13

ADC_IN1

AI

Analog/Digital converter input

Accepted

values 0 to

1.2V DC

A/D

14

ADC_IN2

AI

Analog/Digital converter input

Accepted

values 0 to

1.2V DC

A/D

15

DAC_OUT

AO

Digital/Analog converter output

D/A

Miscellaneous Functions

30

VRTC

AO

backup for the embedded RTC supply (1.8V)

Power

47

RESET*

I

Reset Input

CMOS 1.8V

43

V_AUX / PWRMON

O

1.8V stabilized output Imax=100mA
/ Power ON monitor

Power Out 1.8V

UL865 Hardware User Guide

1VV0301050 Rev 2 – 2013-10-09

Pad

Signal

I/O

Function

Note

Type

34

Antenna

I/O

Antenna pad – 50 Ω

RF

GPIO

42

GPIO_01 / DVI_WA0

I/O

GPIO01 Configurable GPIO
/ Digital Audio Interface (WA0)

CMOS 1.8V

41

GPIO_02 / JDR /

DVI_RX

I/O

GPIO02 I/O pin
/ Jammer Detect Report
/ Digital Audio Interface (RX)

CMOS 1.8V

40

GPIO_03 / DVI_TX

I/O

GPIO03 GPIO I/O pin
/ Digital Audio Interface (TX)

CMOS 1.8V

39

GPIO_04 / DVI_CLK

I/O

GPIO04 Configurable GPIO

Digital Audio Interface (CLK)

CMOS 1.8V

29

GPIO_05

I/O

GPIO05 Configurable GPIO

CMOS 1.8V

28

GPIO_06 / SPI_SRDY

I/O

GPIO06 Configurable GPIO
/ ALARM / SPI_SRDY

CMOS 1.8V

27

GPIO_07 / SPI_MRDY

I/O

GPIO07 Configurable GPIO
/ Buzzer / SPI_MRDY

CMOS 1.8V

26

GPIO_08 / STAT_LED

I/O

GPIO08 Configurable GPIO
/ Digital Audio Interface (CLK)

CMOS 1.8V

25

SPI_CLK

I/O

SPI_CLK

CMOS 1.8V

Power Supply

38

VBATT - Main power supply (Baseband)

Power

37

VBATT_PA - Main power supply (Radio PA)

Power

23

AGND - AF Signal Ground (see audio section)

AF Signal

32

GND

-

Ground

Power

33

GND

-

Ground

Power

35

GND

-

Ground

Power

36

GND

-

Ground

Power

46

GND

-

Ground

Power

23

GND

-

Ground

-

RESERVED

19

- 20

-

21

- 22

-

24

- 31

-

48

-

UL865 Hardware User Guide

1VV0301050 Rev 2 – 2013-10-09

WARNING:

Reserved pins must not be connected.

Pin

signal

38, 37

VBATT & VBATT_PA

32, 33, 35, 36, 46

GND

23

AGND

7

TXD

8

RXD

5

RTS

6

CTS

43

V_AUX / PWRMON

47

RESET*

45

TXD_AUX

44

RXD_AUX

UL865 Hardware User Guide

1VV0301050 Rev 2 – 2013-10-09

NOTE:

If not used, almost all pins should be left disconnected. The only exceptions are the
following pins:

To test and debug the assembled UL865, we strongly recommend foreseeing test pads on the
host PCB, in order to check the connection between the UL865 itself and the application and
to test the performance of the module connecting it with an external computer. Depending by
the customer application, these pads include, but are not limited to the following signals:

TXD
RXD
RESET*
GND
VBATT
VBATT_PA
TX_AUX
RX_AUX

PWRMON

UL865 Hardware User Guide

1VV0301050 Rev 2 – 2013-10-09

TOP VIEW

NOTE:

The pins defined as NC/RFU shall be considered RESERVED and must not be connected
to any pin in the application.

Modem ON Proc.

PWR supply ON

and >3.22V?

Y

Delay 1s - 5s for Low

Voltage Operating

Y

Modem Reset Proc.

AT init sequence.

N

Start AT CMD.

N

PWMON = ON?

Y

PWMON = ON?

Delay 300mS

Enter AT<CR>

AT answer in

1second ?

N Y N

Delay 1s

UL865 Hardware User Guide

1VV0301050 Rev 2 – 2013-10-09

The UL865 will automatically power on itself when VBATT & VBATT_PA are applied
to the module.

V_AUX / PWRMON pin will be at the high logic level and the module can be considered
fully operating after 5 seconds.

The following flow chart shows the proper turn on procedure:

UL865 Hardware User Guide

1VV0301050 Rev 2 – 2013-10-09

NOTE:

The power supply must be applied either at the same time on pins VBATT and
VBATT_PA.

NOTE:

To guarantee a correct module’s start-up please check that the Power Supply is with a
level >3.22V within 21mS.

NOTE:

In order to prevent a back powering effect it is recommended to avoid having any HIGH
logic level signal applied to the digital pins of the UL865 when the module is powered
OFF or during an ON/OFF transition.

Modem ON Proc.

Disconnect PWR supply

AT init sequence.

Delay 300mS

Enter AT<CR>

AT answer in

1second?

Y

N

Start AT CMD.

UL865 Hardware User Guide

1VV0301050 Rev 2 – 2013-10-09

A flow chart showing the AT commands managing procedure is displayed below:

Modem OFF Proc.

AT#SYSHALT

Disconnect PWR supply

10s timeout

Modem ON Proc.

Delay 1.5s

UL865 Hardware User Guide

1VV0301050 Rev 2 – 2013-10-09

The following flow chart shows the proper turnoff procedure:

NOTE:

In order to prevent a back powering effect it is recommended to avoid having any HIGH
logic level signal applied to the digital pins of the UL865 when the module is powered off
or during an ON/OFF transition.

UL865 Hardware User Guide

1VV0301050 Rev 2 – 2013-10-09

To unconditionally reboot the UL865, the pad RESET* must be tied low for at least 200
milliseconds and then released.

The maximum current that can be drained from the ON* pad is 0,15 mA.

WARNING:

The hardware unconditional Restart must not be used during normal operation of the
device since it does not detach the device from the network. It shall be kept as an
emergency exit procedure to be done in the rare case that the device gets stuck waiting for
some network or SIM responses.

NOTE:
Do not use any pull up resistor on the RESET* line nor any totem pole digital output.

Using pull up resistor may bring to latch up problems on the UL865 power regulator and
improper functioning of the module.

The line RESET* must be connected only in open collector configuration; the transistor
must be connected as close as possible to the RESET* pin.

TIP:
The unconditional hardware restart must always be implemented on the boards and the

software must use it as an emergency exit procedure.

A simple circuit to do it is: