Telit Wireless Solutions BlueMod+S50/AI, BlueMod+S50/AP Hardware User's Manual

BlueMod+S50

Hardware User Guide

1VV0301505 Rev. 1 – 2018-03-12

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1VV0301505 Rev. 1 Page 2 of 53 2018-03-02

SPECIFICATIONS ARE 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 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 shal l 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 s ale
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 ins truction
manual may not be copied (reverse engineered) or reproduced in any manner without the
express written permission of Telit or the 3rd Party S W 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-ex clusive, 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

I. 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.

II. 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.

III. 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.

IV. 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.

V. Third Party Rights

The software may include Third Party Right so ftware. In this case y ou agree to comply with
all terms and conditions imposed on you in respect of such separate software. In addition
to Third Party Terms, the disclaimer of warranty and limitation of liability provisions in this
License shall apply to the Third Party Right software.

TELIT HEREBY DISCLAIMS ANY AND ALL WARRANTIES EXPRESS OR IMPLIED
FROM ANY THIRD PARTIES REGARDING ANY SEPARATE FILES, ANY THIRD PARTY
MATERIALS INCLUDED IN THE SOFTWARE, ANY THIRD PARTY MATERIALS FROM
WHICH THE SOFTWARE IS DERIVED (COLLECTIVELY “OTHER CODE”), AND THE
USE OF ANY OR ALL THE OTHER CODE IN CONNECT ION WITH THE SOFTWARE,
INCLUDING (WITHOUT LIMITATION) ANY WARRANTIES OF SATISFACTORY
QUALITY OR FITNESS FOR A PARTICULAR PURPOSE.

NO THIRD PARTY LICENSORS OF OTHER CODE SHALL HAVE ANY LIABILITY FOR
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING WITHOUT LI MITATION LOST PROFITS), HOWEVER CAUSED
AND WHETHER MADE UNDER CONTRACT, TORT OR OTHER LEGAL THEORY,
ARISING IN ANY W AY OUT OF THE USE OR DIS TRIBUTION OF THE OTHER CODE
OR THE EXERCISE OF ANY RIGHTS GRANTED UNDER EITHER OR BOTH THIS
LICENSE AND THE LEGAL TERMS APPLICABLE TO ANY SEPARATE FILES, EVEN IF
ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

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APPLICABILITY TABLE

PRODUCTS

BLUEMOD+S50/AI/CEN

BLUEMOD+S50/AP/CEN

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CONTENTS

1. INTRODUCTION .......................................................................... 7

Scope ......................................................................................... 7

Audience .................................................................................... 7

Contact Information, Support ...................................................... 7

Text Conventions ....................................................................... 8

Related Documents .................................................................... 8

2. OVERVIEW .................................................................................. 9

3. GENERAL PRODUCT DESCRIPTION ...................................... 10

Feature Summary ..................................................................... 10

Applications .............................................................................. 11

Block Diagram .......................................................................... 12

4. APPLICATION INTERFACE ...................................................... 13

Power Supply ........................................................................... 13

Reset ........................................................................................ 14

Serial Interface ......................................................................... 15

General Purpose I/O (GPIO) .................................................... 19

I2C Interface ............................................................................. 19

SPI Serial Peripheral Interface ................................................. 19

Serial Wire Debug Interface ...................................................... 20

Test Mode ................................................................................ 20

NFC Function ........................................................................... 21

Slow Clock Interface ................................................................. 22

Analog/Digital Converter (ADC) ................................................ 23

5. MODULE PINS ........................................................................... 24

Pin Numbering .......................................................................... 24

Pin Description ......................................................................... 25

Firmware depend Functions ..................................................... 26

Handling of Unused Signals ..................................................... 26

6. ELE CTRICAL CHARACT ERISTICS .......................................... 27

Absolute Maximum Ratings ...................................................... 27

Operating Conditions ................................................................ 27

DC Parameter .......................................................................... 28

Power Consumption and Power-Down Modes .......................... 29

RF Performance ....................................................................... 30

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Antenna-Gain and Radiation Pattern for BlueMod+S50/AI ....... 31

7. MECHANICAL CHARACTERISTICS ......................................... 33

Dimensions .............................................................................. 33

Recommended Land Pattern .................................................... 33

Re-flow Temperature-Time Profile ............................................ 34

AI Layout and Placement Recommendation ............................. 35

OEM Layout and Antenna Selection in Respect to RED/FCC/IC

Certification .............................................................................. 36

Housing Guidelines .................................................................. 38

Safety Guidelines ..................................................................... 38

Cleaning ................................................................................... 39

8. APPLICATION DIAGRAM.......................................................... 39

9. COMPLIANCES ......................................................................... 40

Declaration of Conformity CE ................................................... 40

FCC Compliance ...................................................................... 41

IC Compliance .......................................................................... 43

Bluetooth Qualification .............................................................. 45

RoHS Declaration ..................................................................... 45

10. PACKING ................................................................................... 46

Tape&Reel Packing .................................................................. 46

Tray Packing ............................................................................ 48

Moisture Sensitivity Level ......................................................... 48

11. EVALUATION KIT ...................................................................... 49

12. SAFETY RECOMMENDATIONS................................................ 50

13. ACRONYMS ............................................................................... 51

14. DOCUMENT HISTORY .............................................................. 52

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1. INTRODUCTION

Scope

This document provides information how the BlueMod+S50 can be integrated into customer
systems. It addresses hardware specifications of the BlueMod+S50 and requirements of
the hardware environments for the BlueMod+S50.

The description text “BlueMod+S50” refers to all modules listed in the
Applicability Table.

Audience

This document is intended for Telit customers, especially system integrators, about to
implement Bluetooth modules in their application.

Contact Information, Support

For general contact, technical support services, technical questions and report
documentation errors contact Telit Technical Support at:

• [e-mail]

or your local support center

• [e-mail]

• [e-mail]

• [e-mail]

Alternatively, use:

https://www.telit.com/contact-us/

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

https://www.telit.com/

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

Telit appreciates feedback from the users of our information.

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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.

Related Documents

• [1] Bluetooth SIG Core SpecificationV5.0

• [2] UICP_UART_Interface_Control_Protocol, 30507ST10756A

• [3] BlueMod+S50 AT Command Reference, 80578ST10890A

• [4] BlueMod+S50 Software User Guide, 1VV0301506

• [5] BlueEva+S50 Evaluation Kit User Guide, 1VV03xxxxx

• [6] BlueMod+S50 Testmode Reference, 80587NT1xxxxA

• [7] OTA Measurement User Guide, 1VV03xxxxx

• [8] Nordic: nRF52_Series_Reference_Manual

• [9] Nordic: nRF52832_PS v1.x.pdf (Product Specification)

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2. OVERVIEW

This document provides information how the BlueMod+S50 can be integrated into customer
systems. It addresses hardware specifications of the BlueMod+S50 and requirements of
the hardware environments for the BlueMod+S50.

The term BlueMod+S50 is used as an abreviation and refers to both,

the BlueMod+S50/AI and the BlueMod+S50/AP.
If information is related to dedicated versions, the whole product

name is used.

The BlueMod+S50 is delivered in two different hardware versions:

• BlueMod+S50/AI: with integrated bluetooth antenna

• BlueMod+S50/AP: without integrated bluetooth antenna and with a 50Ω rf

connection on pin.

The integration of the BlueMod+S50 bluetooth module within user
application shall 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 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.

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3. GENERAL PRODUCT DESCRIPTION

Feature Summary

• Supports Bluetooth low energy

• Qualified Bluetooth V5.0 Single Mode LE

• Supports 2 Msym/s PHY for LE

• Arm® CortexTM-M4F core for embedded profiles or application software

• RF output power -20 up to +4dBm

• RF output power -40dBm in Whisper Mode

• Supply voltage range 1,7V to 3,6V

• Internal crystal oscillator (32 MHz)

• LGA Surface Mount type. BlueMod+S50: 17 x 10 x 2.6 mm

3

• Pin compatible to Telit BlueMod family +S, +S42, +S42M and +SR

• Flexible Power Management

• NFC peripheral communication signal interface type A with 106 kbps bit rate

• High-speed UART interface

• I2C Master

• SPI Master/Slave interface

• Up to 19 digital IO’s for individual usage by embedded software

• Up to 8 analog inputs for individual usage by embedded software

• 8/9/10/12bit ADC

• Low power comparator

• Real Time Counter

• 128-bit AES encryption

• CE certified

• Shielded to be compliant to optional FCC full modular approval

• Manufactured in conformance with RoHS2

• Operating temperature -40 ... +85 °C

• Weight: 0,7 g

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Applications

The BlueMod+S50 is designed to be used in low power applications, like sensor devices.
Some typical applications are described in this chapter.

Supported profiles are:

• Terminal I/O

• GATT based LE-profiles

Support for any additional profile is possible on request.

3.2.1. General Cable Replacement

In case there is no standardized application specific profile available the BlueMod+S50
offers Telit’s Terminal I/O profile, which allows transparent data transfer over UART and
supports Secure Simple Pairing, making the pairing process easy and the connection
secure. Terminal I/O is available for iOS and Android as well as implemented i n Telit’s dual
mode module BlueMod+SR.

3.2.2. Industry

BlueMod+S50 can be used to monitor and control motors, actuators, values and entire
processes.

3.2.3. POS/Advertising

BlueMod+S50 supports iBeacon or similar applications.

3.2.4. Healthcare and Medical

Usage of Bluetooth is aimed mainly at devices that are used for monitoring vital data. Typical
devices are blood glucose meter, blood pressure cuffs and pulse ox meters. Bluetooth
BR/EDR and low energy were chosen by the Continua Health Alliance as transports for
interoperable end to end communication.

3.2.5. Sports and Fitness

In the sports and fitness segment the BlueMod+S50 is used in devices for positioning as
well as monitoring vital data. Typical devices in this market are heart rate monitors, body
temperature thermometers, pedometers, cadence meters, altimeter, positioning / GPS
tracking and watches displaying information from sensors.

3.2.6. Entertainment

Bluetooth technology is already used in a wide variety of devices in the entertainment
sector, namely set-top boxes / gaming consoles. BlueMod+S50 is especially suited for use
in remote controls, gaming controller and wireless mouse/keyboard applications.

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Block Diagram

nRF52832

VSUP

BlueMod+S50/AI

RESET

I2C

UART

SPI

1

2

up to 7

3

GND

3.0V

32MHz

opt. 32kHz

Serial Wire Debug

onboard
antenna

2

GPIO

up to 19

Analog In

up to 6

NFC-Antenna

2

32,768kHz

optional

Figure 1: BlueMod+S50/AI Block Diagram

nRF52832

VSUP

BlueMod+S50/AP

RESET

I2C

UART

SPI

1

2

up to 7

3

GND

3.0V

32MHz

opt. 32kHz

Serial Wire Debug

2

GPIO

up to 19

Analog In

up to 6

NFC-Antenna

2

32,768kHz

optional

BT-Antenna

1

Figure 2: BlueMod+S50/AP Block Diagram

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4. APPLICATION INTERFACE

Power Supply

BlueMod+S50 require a power supply with the following characteristics:
Typical: 3,0V

DC

, min.: 1,7VDC, max.: 3,6VDC, thereby delivering > 25 mA peak

BlueMod+S50 is designed to be powered from 3V coin cell batteries e.g. CR2032 directly,
or any other power source complying with the given re quirements. For optimal performance,
a stable supply is recommended. Furthermore, it is recommended to place a capacitor in
parallel to the CR2032 3V coin cell battery in order to prolong battery lifetime, by
compensating the effects of the rising source resistance of the battery to pulsed loads. Since
the isolation resistance of this capacitor will discharge the battery in a not insignificant scale,
the capacitor should be chosen under consideration of the following rules:

• capacitance as small as necessary

• nominal voltage as high as possible

• case size as large as possible

• use X7R instead of X5R

.

BlueMod+S50

XC6209F-3.3

E-6,F-6

VSUP

GND:

A-7,E-7,F-7,B-[5:8],

C-[5:8],D-8,E-8,F-8

1µ + 100n

1µ

VOUT

VSS

VIN

CE

5 1

3

2

+5VDC

Figure 3: BlueMod+S50 Example Power Supply with LDO

It is strongly recommended NOT to switch the module power
supply on/off while other parts of the circuitry stay powered. This
mostly leads to hardly controllable back-feeding issues.

Due to the ultra-low power design a few µAmps are enough to raise
VSUP to an undefined state, which may cause a hang-up deadlock if
power is switched on again.

Any I/O pin at a voltage > 0,3V while the supply VSUP is at 0V
violates the abs. max. ratings given in chapter 5.1 Absolute Maximum
Ratings.

It is instead recommended to use the advanced power management
features, which may reduce the supply current to 300nA.

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Reset

BlueMod+S50 are equipped with circuitry for generating reset from two sources:

• A reset is held active, when VSUP falls below the threshold of the brownout detector (V

BOR

=

1,2V … 1,7V), and is released when VSUP rises abo ve V

BOR

+ V

HYST

.

The brownout detector also holds the reset active during power up, until VSUP > V

BOR

.

• A reset is generated, when VSUP is > V

BOR

and increases 300 mV or more, within 300 ms

or less.

• By holding pin B-1 (EXT-RES#) at ≤ VSUP*0,25V for t

HOLDRESETNORMAL

≥ 0,2µs, an external

reset (pin reset) is generated. This pin has a fixed internal pull-up resistor (R

PU

= 11kΩ ...

16kΩ). EXT-RES# may be left open if not used.

BlueMod+S50

E-6,F-6

VSUP

GND

+3V3

EXT-RES#

B-1

Reset-Switch is optional

Please Note: EXT -RES # of BlueMod+S50 has approx. 13k internal pullup.

Reset signal is optional

Host MCU

GPIO

VDD

Figure 4: BlueMod+S50 Example Reset

The following table shows the pin states of BlueMod+S50 during reset active. This pin
states are kept until hardware initialization has started.

Pin Name

State: BlueMod+S50

EXT-RES# Input with pull-up

(1)

XL-IN Input floating (disconnected)
XL-OUT Input floating (disconnected)
UART-TXD Input floating (disconnected)
UART-RXD Input floating (disconnected)
UART-RTS# Input floating (disconnected) with pull-up resistor 470kΩ

(2)

UART-CTS# Input floating (disconnected)
IUR-OUT# Input floating (disconnected)
IUR-IN# Input floating (disconnected)

GPIO[0:14]

Input floating (disconnected)

TESTMODE# Input floating (disconnected)
BOOT0 Input floating (disconnected)
SWDIO Input with pull-up

(1)

SWCLK Input with pull-down

(1)

(1)

pull-up, pull-down: R

PU, RPD

is typ. 10kΩ

Table 1: Pin States during Reset

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Serial Interface

The serial interface of BlueMod+S50 is a high-speed UART interface supporting RTS/CTS
flow control and interface-up/down mechanism according to the UICP protocol (refer to [2]).

• Electrical interfacing is at CMOS levels (defined by VSUP; see chapter 6.3.1)

• Transmission speeds are 9600 – 921600 bps and 1Mbps (asynchronous)

• Character representation: 8 Bit, no parity, 1 stop bit (8N1)

• Hardware flow-control with RTS and CTS (active low)

Transmission speed may be limited by firmware. See corresponding
AT command reference [3] for further information.

4.3.1. Basic Serial Interface

The basic serial interface (with RTS/CTS flow control) uses only four signal lines (UART­RXD, UART-TXD, UART-CTS#, UART-RTS#) and GND. IUR-IN# and IUR-OUT# (see
below) can be left unconnected.

BlueMod+S50

Host

UART-RXD

UART-TXD

UART-CTS#

UART-RTS#

GND

Figure 5: Basic Serial Interface

A pulldown resistor is programmed to CTS# if UICP is disabled.

If AT+SYSTEMOFF is issued while UICP is disabled, it is necessary
that the host keeps CTS# at logic low or leaves this pin floating.

Otherwise the supply current drawn in the deep sleep mode increases

by VSUP/13kΩ, which would be at 3V 231µA, 770 times the expected

0,3µA. This would reduce the life time of a coin cell significantly.

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4.3.2. 4-Wire Serial Interface

If the host in question is sufficiently fast, a four-wire scheme may be successful. Connect
the serial lines UART-RX D, UART-TX D as well as UART-RTS# and GND; leave UART­CTS# open. The host is required to stop sending data w i thin a s hor t time after de-assertion
of UART-RTS# (there is room for up to 4 more characters at the time RTS# drops).

UA RT-TXD

GND

UA RT-R XD

IUC_IN# / C TS #

UA RT-R XD

UA RT-TXD

CTS#

IUC_OUT# / RTS#

IUR_OUT#

IUR_IN#

Figure 6: UART Interface without UICP Signals 4-wire (incl. GND)

UICP has to be deactivated permanently in this configuration, because
signal UART-CTS# and IUR-IN# become inputs with no PU or PD if
UICP is active. This would cause floating CMOS inputs.

It is strongly recommended to use hardware flow control in both
directions. Not using flow control can cause a loss of data.

4.3.3. Serial Interface with UICP

A substantially saving of power during idle phases can be achieved (see when the UICP
protocol is used (refer to [2]). This protocol should be implemented on the host side as w ell.
Signals IUR-IN # and IUR-OUT# should be connected to the host and may be mapped to
DSR and DTR, if an RS232-style (DTE-type) interface is used (see Figure 7).

UA RT-TXD

GND

UA RT-RXD

CTS #

UA RT-RXD

UA RT-TXD

Blu eM od +Sx

Host

RTS #

CTS #

RTS #

IUR_OUT#

IUR_IN#

IUR_OUT# / DTS

IUR_IN# / DTR

Figure 7: BlueMod+S50 Serial Interface Supporting UICP