Telegesis EM35XA User Manual

Telegesis

TG-ETRX35X-PM-010-102

ETRX351 and ETRX357 Product Manual

ETRX35x ZIGBEE® MODULES

PRODUCT MANUAL

ETRX351 and ETRX357

Table of Contents

1 INTRODUCTION ................................................................................................................. 5

1.1 Hardware Description ....................................................................................................... 5

2 PRODUCT APPROVALS ................................................................................................... 6

2.1 FCC Approvals ................................................................................................................. 6

2.1.1 FCC Labelling Requirements ........................................................................................... 6

2.2 IC (Industry Canada) Approvals ....................................................................................... 7

2.3 European Certification (ETSI)........................................................................................... 7

2.4 ICASA Approvals ............................................................................................................. 8

2.5 Australia and New Zealand (C-Tick) ................................................................................. 8

2.6 Declarations of Conformity ............................................................................................... 8

2.7 IEEE 802.15.4 .................................................................................................................. 8

2.8 The ZigBee® Protocol ...................................................................................................... 8

3 MODULE PINOUT .............................................................................................................. 9

4 HARDWARE DESCRIPTION ............................................................................................ 11

4.1 Hardware Interface ......................................................................................................... 11

5 FIRMWARE DESCRIPTION ............................................................................................. 12

5.1 Custom Firmware ........................................................................................................... 12

5.2 Software Interface .......................................................................................................... 13

6 ABSOLUTE MAXIMUM RATINGS ................................................................................... 14

6.1 Environmental Characteristics ........................................................................................ 14

6.2 Recommended Operating Conditions............................................................................. 14

7 DC ELECTRICAL CHARACTERISTICS ........................................................................... 15

8 DIGITAL I/O SPECIFICATIONS ....................................................................................... 17

9 A/D CONVERTER CHARACTERISTICS .......................................................................... 18

10 AC ELECTRICAL CHARACTERISTICS ........................................................................... 18

10.1 TX Power Characteristics ............................................................................................... 20

11 PHYSICAL DIMENSIONS ................................................................................................. 22

12 SOLDERING TEMPERATURE PROFILE (FOR REFLOW SOLDERING) ........................ 23

12.1 For Leaded Solder ......................................................................................................... 23

12.2 For Lead-free Solder ...................................................................................................... 23

13 PRODUCT LABEL DRAWING ......................................................................................... 24

14 RECOMMENDED FOOTPRINT ........................................................................................ 25

14.1 Example carrier board .................................................................................................... 26

15 RELIABILITY TESTS ........................................................................................................ 27

16 APPLICATION NOTES ..................................................................................................... 27

ETRX351 and ETRX357

16.1 Safety Precautions ......................................................................................................... 27

16.2 Design Engineering Notes .............................................................................................. 27

16.3 Storage Conditions ......................................................................................................... 28

17 PACKAGING .................................................................................................................... 28

17.1 Embossed Tape ............................................................................................................. 28

17.2 Component Orientation .................................................................................................. 29

17.3 Reel Dimensions ............................................................................................................ 29

17.4 Packaging ...................................................................................................................... 29

18 ORDERING INFORMATION ............................................................................................. 30

19 DISCLAIMER .................................................................................................................... 31

20 ROHS DECLARATION ..................................................................................................... 31

21 DATA SHEET STATUS .................................................................................................... 31

22 LIFE SUPPORT POLICY .................................................................................................. 31

23 RELATED DOCUMENTS ................................................................................................. 32

24 CONTACT INFORMATION ............................................................................................... 32

Module Features

Radio Features

Suggested Applications

Development Kit

Example AT

Style Commands

Image not shown actual size; enlarged to show detail.

ETRX351 and ETRX357

The Telegesis ETRX351 and ETRX357 modules are low power

2.4GHz ZigBee modules, based on the latest Ember EM351 and EM357 single chip ZigBeeTM solutions.

These 3rd generation modules have been designed to be integrated into any device without the need for RF experience and expertise. Utilizing the EmberZNet ZigBee stack, the ETRX35x enables you to add powerful wireless networking capability to your products and quickly bring them to market.

The module’s unique AT-style command line interface allows designers to quickly integrate ZigBee technology without complex software engineering. For custom application development the ETRX35x series integrates with ease into Ember’s InSight development environment.

• Small form factor, SMT module 25mm x 19mm

• Side Castellations for easy soldering and optical

inspection

• 2 antenna options: Integrated chip antenna or U.FL coaxial connector

• Industry’s first ARM® Cortex-M3 based family of ZigBee modules

• Industry standard JTAG Programming and real time network level debugging via the Ember InSight Port

• 192kB (ETRX357) and 128kB (ETRX351) flash and 12kbytes of RAM

• Lowest Deep Sleep Current of sub 1µA and multiple sleep modes

• Wide supply voltage range (2.1 to 3.6V)

• Optional 32.768kHz watch crystal can be added

externally

• Module ships with standard Telegesis AT-style command interface based on the ZigBee PRO feature set

• Can act as an End Device, Router or Coordinator

• 24 general-purpose I/O lines including analogue inputs

(all GPIOs of the EM35x are accessible)

• Firmware upgrades via serial port or over the air (password protected)

• Hardware supported encryption (AES-128)

• CE, FCC and IC compliance, FCC modular approval

• Operating temperature range: -40°C to +85°C

• Long range version with a link budget of up to 124dB

available in the same form factor

• AMR – ZigBee Smart Energy applications

• Wireless Alarms and Security

• Home/Building Automation

• Wireless Sensor Networks

• M2M Industrial Controls

• Lighting and ventilation control

• Remote monitoring

• Environmental monitoring and control

• New Development kit containing everything required to

set up a mesh network quickly and evaluate range and performance of the ETRX35x and its long-range version.

• AT-style software interface command dictionary can be modified for high volume customers.

• Custom software development available upon request.

AT+BCAST Send a Broadcast AT+UCAST:<address> Send a Unicast AT+EN Establish PAN network AT+JN Join PAN

At power-up the last configuration is loaded from non volatile S-Registers, which can eliminate the need for an additional host controller.

• Based on the Ember EM351 or EM357 single chip ZigBee solutions

• 2.4GHz ISM Band

• 250kbit/s over the air data rate

• 16 channels (IEEE802.15.4 Channel 11 to 26)

• +3dBm output power ( +8dBm in boost mode)

• High sensitivity of -100dBm (-102dBm in boost mode)

typically @ 1% packet error rate

• RX Current: 26mA, TX Current: 31mA at 3dBm

• Robust Wi-Fi and Bluetooth coexistence

Module

Chip

Flash

RAM

ETRX351

EM351

128kB

12kB

ETRX351HR

EM351

128kB

12kB

ETRX357HR

EM357

192kB

12kB

ETRX351 and ETRX357

1 Introduction

This document describes the Telegesis ETRX351 and ETRX357 ZigBee® modules which have been designed to be easily integrated into another device and to provide a fast, simple and low cost wireless mesh networking interface.

The Telegesis ETRX3 series modules are based on the Ember ZigBee® platform consisting of the single chip EM351 or EM357 combined with the ZigBee® PRO compliant EmberZNet meshing stack. Integration into a wide range of applications is made easy using a simple AT style command interface and advanced hardware design.

The configurable functionality of the Telegesis AT Commandset often allows the ETRX3 series ZigBee® modules to be used without an additional host microcontroller saving even more integration time and costs. In addition to the Telegesis AT Commandset, the ETRX351 and ETRX357 modules can be used with custom-built firmware whilst representing an ideal platform for custom firmware development in conjunction with the Ember development kits.

No RF experience or expertise is required to add this powerful wireless networking capability to your products. The ETRX351 and ETRX357 offer fast integration opportunities and the shortest possible time to market for your product.

1.1 Hardware Description

The main building blocks of the ETRX351 and ETRX357 are the single chip EM351 and EM357 SoCs from Ember, a 24MHz reference crystal and RF front-end circuitry optimized for best RF performance. The modules are available with on-board antenna or alternatively a U.FL coaxial connector for attaching external antennae. Modules with the U.FL connector are identified by the “HR” suffix.

The integrated antenna is an Antenova Rufa, and details of the radiation pattern etc are available from the Antenova website [5].

ETRX357 EM357 192kB 12kB

Table 1: Memories

The ETRX351 and ETRX357 are used for ZigBee® (www.zigbee.org) applications. If you wish to create your own custom firmware, and not use the pre-loaded Telegesis AT-Command interface, you will need the Ember InSight toolchain, consisting of InSight Desktop™ together with a comprehensive integrated development environment (IDE). The Ember development environment is currently not suitable for developing an IEEE802.15.4-only application that does not use the ZigBee® layer.

Item

Part No.

Manufacturer

Type

Gain

2 WH-2400

U2.5

Wellhope Wireless

[7] ½ Wave

2.5dBi

FCC ID

S4GEM35XA

ETRX351 and ETRX357

2 Product Approvals

The ETRX351 and ETRX357 as well as the ETRX351HR and ETRX357HR have been designed to meet all national regulations for world-wide use. In particular the following certifications have been obtained:

2.1 FCC Approvals

The Telegesis ETRX351 and ETRX357 with integrated Antenna as well as the ETRX351HR and the ETRX357HR including the antennae listed in Table 2: Approved Antennae have been tested to comply with FCC CFR Part 15 (USA) The devices meet the requirements for modular transmitter approval as detailed in the FCC public notice DA00.1407.transmitter. FCC statement:

This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

1 BT-Stubby EAD Ltd. [6] ¼ Wave 0dBi

Table 2: Approved Antennae

While the applicant for a device into which the ETRX351 (ETRX357) or ETRX351HR (ETRX357HR) with an antenna listed in Table 2 is installed is not required to obtain a new authorization for the module, this does not preclude the possibility that some other form of authorization or testing may be required for the end product.

The FCC requires the user to be notified that any changes or modifications made to this device that are not expressly approved by Telegesis (UK) Ltd. may void the user's authority to operate the equipment.

When using the ETRX351HR and ETRX357HR with approved antennae, it is required to prevent end-users from replacing them with non-approved ones.

2.1.1 FCC Labelling Requirements

When integrating the ETRX351, ETRX357, ETRX351HR or ETRX357HR into a product it must be ensured that the FCC labelling requirements are met. This includes a clearly visible label on the outside of the finished product specifying the Telegesis FCC identifier (FCC ID: S4GEM35XA) as well as the FCC notice shown on the previous page. This exterior label can use wording such as “Contains Transmitter Module FCC ID: S4GEM35XA” or “Contains FCC ID:S4GEM35XA” although any similar wording that expresses the same meaning may be used.

ETRX351 and ETRX357

2.2 IC (Industry Canada) Approvals

The Telegesis ETRX351 and ETRX357 with integrated Antenna as well as the ETRX351HR and the ETRX357HR including the antennae listed in Table 2: Approved Antennae have been tested to comply with IC.

IC-ID: 8735A-EM35XA

The labelling requirements for Industry Cannada are similar to those of the FCC. Again a clearly visibly lable must be placed on the outside of the finished product stating something like “Contains Transmitter Module, IC: 8735A-EM35XA”, although any similar wording that expresses the same meaning may be used.

The integrator is responsible for the final product to comply to IC ICES-003 and FCC Part 15, Sub. B – Unintentional Radiators.

2.3 European Certification (ETSI)

The ETRX351, ETRX357, ETRX351HR and ETRX357HR have been certified to the following standards:

• Radio: EN 300 328:V1.7.1

• EMC: EN 301 489-17:V2.1.1

• Safety: EN 60950-1:2005 (Ed. 2.0)

•

For this purpose the ETRX351HR and ETRX357HR have been tested with the antennae listed in Table 2: Approved Antennae .

If the ETRX351, ETRX357, ETRX351HR or ETRX357HR module is incorporated into an OEM product, the OEM product manufacturer must ensure compliance of the final product to the European Harmonised EMC, and low voltage/safety standards. A Declaration of Conformity must be issued for each of these standards and kept on file as described in Annex II of the R&TTE Directive. The final product must not exceed the specified power ratings, antenna specifications and installation requirements as specified in this user manual. If any of these specifications are exceeded in the final product then a submission must be made to a notified body for compliance testing to all of the required standards.

The ‘CE’ marking must be applied to a visible location on any OEM product. For more information please refer to http://ec.europa.eu/enterprise/faq/ce-mark.htm. Customers assume full responsibility for learning and meeting the required guidelines for each country in their distribution market.

ETRX351 and ETRX357

2.4 ICASA Approvals

The ETRX351, ETRX357, ETRX351HR and ETRX357HR have been certified to be used in South Africa.

2.5 Australia and New Zealand (C-Tick)

The ETRX351, ETRX357, ETRX351HR and ETRX357HR have been certified to be used in Australia and new Zealand.

2.6 Declarations of Conformity

Telegesis (UK) Ltd has issued Declarations of Conformity for all ETRX3 series ZigBee® RF Modules, which cover Radio Emissions, EMC and Safety. These documents are available from our website or on request.

2.7 IEEE 802.15.4

IEEE 802.15.4 is a standard for low data-rate, wireless networks (raw bit-rate within a radio packet of 250kbps @2.4GHz) which focuses on low cost, low duty cycle, long primary battery life applications as well as mains-powered applications. It is the basis for the open ZigBee® Protocol.

2.8 The ZigBee® Protocol

The ZigBee® Protocol is a set of standards for wireless connectivity for use between any devices over short to medium distances. The specification was originally ratified in December 2004, paving the way for companies to start making low-power networks a reality.

ZigBee® uses the IEEE 802.15.4 radio specification running on the 2.4GHz band, plus three additional layers for networking, security and applications. What makes the specification unique is its use of a mesh network architecture which, in bucket chain style, passes data from one node to the next until it lands at its destination. The network is self-healing and adapts its routing as link quality changes or nodes move. Furthermore, nodes can be defined as End Devices which do not act as routers, but can therefore be put into a low-power sleep state.

The enhanced version of the ZigBee® standard (or ZigBee® 2006) was released in December 2006, adding new features and improvements to the only global wireless communication standard enabling the development of easily deployable low-cost, low-power, monitoring and control products for homes, commercial buildings and industrial plant monitoring. In 2007 the ZigBee Alliance introduced the PRO featureset which offers advantages over earlier versions, including

• Truly self healing mesh networking

• Messages can now travel up to 30 hops

• Source-Routing for improved point to multipoint message transmission

• Improved security including Trust-Centre link keys

• New message types and options

The Telegesis AT Commandset, which by default ships on all ETRX3 series products is based on the ZigBee® PRO featureset. For more information on the Telegesis AT Commandset please refer to the separate documentation at www.telegesis.com.

ETRX35x

ame

EM35x Pin

Default use

Alternate Functions

3 Module Pinout

ETRX351 and ETRX357

Figure 1: ETRX3 series Module Pinout (top view)

The table below gives details about the pin assignment for direct SMD soldering of the ETRX3 series modules to the application board. For more information on the alternate functions please refer to [2]. Also refer to the Telegesis AT Commandset documentation and the Telegesis development kit documentation to understand how the pre-programmed firmware makes use of the individual I/Os.

All GND pads are connected within the module, but for best RF performance all of them should be grounded externally ideally to a ground plane.

Pad

1 GND GND GND 2 PC5 {1} 11 TX_ACTIVE 3 PC6 13 O/P OSC32B, nTX_ACTIVE 4 PC7 14 O/P OSC32A, OSC32_EXT 5 PA7 {5} 18 O/P TIM1C4 6 PB3 {2,3} 19 O/P, CTS SC1nCTS, SC1SCLK, TIM2C3 7 nReset 12 nReset 8 PB4 {2,3} 20 O/P, RTS TIM2C4, SC1nRTS, SC1nSSEL 9 PA0 21 O/P TIM2C1, SC2MOSI 10 PA1 22 O/P TIM2C3, SC2SDA, SC2MISO 11 PA2 24 O/P TIM2C4, SC2SCL, SC2SCLK 12 PA3 25 O/P SC2nSSEL, TRACECLK, TIM2C2 13 GND GND GND 14 PA4 26 O/P ADC4, PTI_EN, TRACEDATA 15 PA5 {4} 27 O/P ADC5, PTI_DATA, nBOOTMODE, TRACEDATA3 16 PA6 {5} 29 O/P TIM1C3 17 PB1 {3} 30 TXD SC1MISO, SC1MOSI, SC1SDA, SC1TXD, TIM2C1 18 PB2 {3} 31 RXD SC1MISO, SC1MOSI, SC1SCL, SC1RXD, TIM2C2 19 GND GND GND

ETRX35x

ame

EM35x Pin

Default use

Alternate Functions

ETRX351 and ETRX357

Pad

20 GND GND GND 21 JTCK 32 SWCLK 22 PC2 33 O/P JTDO, SWO 23 PC3 34 O/P JTDI 24 PC4 35 O/P JTMS, SWDIO 25 PB0 36 I/P, IRQ VREF, IRQA, TRACECLK, TIM1CLK, TIM2MSK 26 PC1 38 ADC ADC3, SWO, TRACEDATA0 27 PC0 {5} 40 O/P JRST, IRQD, TRACEDATA1 28 PB7 {5} 41 ADC ADC2, IRQC, TIM1C2 29 PB6 {5} 42 ADC ADC1, IRQB, TIM1C1 30 PB5 43 ADC ADC0, TIM2CLK, TIM1MSK 31 GND GND GND 32 Vcc Vcc Vcc 33 GND GND GND

Table 3: Pin Information

Notes:

{1} When the alternate function is selected, TX_ACTIVE becomes an output that indicates that the

EM35x radio circuit is in transmit mode. PC5 is not usable on the long range version of the

ETRX35x as this GPIO is used internally as TX_ACTIVE to control the external RF frontend. {2} The serial UART connections TXD, RXD, CTS and RTS are PB1, PB2, PB3 and PB4 respectively {3} When using the Telegesis AT Commandset, RTS/CTS handshaking is selectable in firmware. See

the AT Command Manual. {4} If PA5 is driven low at power-up or reset the module will boot up in the bootloader {5} PA6, PA7, PB6, PB7 and PC0 can drive high current (see section 8) See also the table “Module pads and functions” in the ETRX357 Development Kit Product Manual.

+ 22 hidden pages

Telegesis EM35XA User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual