Silicon Labs ETRX351, ETRX357 User manual

ETRX35x Product Manual

Telegesis

TG-ETRX35X-PM-010-121

ETRX351 and ETRX357 Product Manual 1.21

ETRX35x ZIGBEE MODULES

PRODUCT MANUAL

ETRX351 and ETRX357

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ETRX35x Product Manual (Rev 1.21)

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

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

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

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

FCC Labelling Requirements ........................................................................................... 7

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

2.3 European Certification (ETSI) ........................................................................................... 8

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

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

2.6 Brazil ................................................................................................................................ 9

2.7 Declarations of Conformity ............................................................................................... 9

2.8 IEEE 802.15.4 .................................................................................................................. 9

2.9 The Zigbee Protocol ....................................................................................................... 10

3 MODULE PINOUT ................................................................................................................. 11

4 HARDWARE DESCRIPTION ............................................................................................ 13

4.1 Hardware Interface ......................................................................................................... 13

5 FIRMWARE DESCRIPTION .............................................................................................. 14

5.1 Token Settings ............................................................................................................... 15

5.2 C

ustom Fir mware ........................................................................................................... 15

5.3 Software Interface .......................................................................................................... 16

6 ABSOLUTE MAXIMU M RATINGS ................................................................................. 17

6.1 Environmental Characteristics ........................................................................................ 17

6.2 Recommended Operating Conditions ............................................................................. 17

7 DC ELECTRICAL CHARACTERISTICS ........................................................................... 18

8 DIGITAL I/O SPECIFICATIONS ........................................................................................ 20

9 A/D CONVERTER CHARACTERISTICS ........................................................................ 21

10 AC ELECTRICAL CHARACTERISTICS ......................................................................... 21

10.1 TX Power Characteristics ............................................................................................... 23

11 PHYSICAL DIMENSIONS ................................................................................................. 25

12 RECOMMENDED SOLDERING TEMPERATURE PROFILE ............................................ 27

13 PRODUCT LABEL DRAWING .......................................................................................... 28

14 RECOMMENDED FOOTPRINT ........................................................................................ 29

14.1 Pad dimensions

.................................................................

14.2 Recommended Placement.................................................................................................. 30

14.3 Example carrier board .................................................................................................... 32

15 RELIABILITY TESTS ............................................................................................................ 33

16 APPLICATION NOTES .................................................................................................. 33

16.

1 Safety Precautions ......................................................................................................... 33

16.2 Design Engineering Notes .................................................................................................. 33

............................................. 29

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16.3 Storage Conditions ......................................................................................................... 34

17 PACKAGING .................................................................................................................... 34

17.1 Embossed Tape ............................................................................................................. 34

17.2 Component Orientation .................................................................................................. 35

17.3 Reel Dimensions ............................................................................................................ 35

17.4 Packaging - bag .................................................................................................................. 37

17.5 Packaging – carton ......................................................................................................... 37

18 ORDERING INFORMATION ............................................................................................. 38

19 ROHS DECLARATION .......................................................................................................... 39

20 DATA SHEET STATUS .................................................................................................... 39

21 RELATED DOCUMENTS .................................................................................................. 39

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ETRX35x Product Manual (Rev 1.21)

Image not shown actual size; enlarged to show detail.

Module Features

• 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

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

available in the same form factor

C to +85°C

Radio Features

• 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

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 Zigbee

These 3

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.

Suggested Applications

• 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

Development Kit

• 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.

Example AT-Style Commands

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.

solutions.

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ETRX35x Product Manual (Rev 1.21)

Module

Chip

Flash

RAM

ETRX351

EM351

128kB

12kB

ETRX351HR

EM351

128kB

12kB

ETRX357

EM357

192kB

12kB

ETRX357HR

EM357

192kB

12kB

1.1 Hardware Description

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.

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 Fehler! Verweisquelle konnte nicht gefunden werden..

The ETRX351 and ETRX357 are used for Zigbee (www.zigbee.org) applications. In case it is desired to develop custom firmware instead of using the pre-loaded AT-Command interface, the Ember InSight toolchain, consisting of InSight Desktop™ together with a comprehensive integrated development environment (IDE), is required. The Ember development environment is currently not suitable for developing an IEEE802.15.4-only application that does not use the Zigbee layer.

Table 1: Memories

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ETRX35x Product Manual (Rev 1.21)

2.1 FCC Approvals

2 Product Approvals

Item

Part No.

Manufacturer

Type

Impedance

Gain

BT-Stubby (straight)

EAD Ltd. [6]

¼ Wave

50Ω

0dBi

BT-Stubby (rightangle)

50Ω

WH-2400-U2.5

Wellhope Wireless [7]

½ Wave

50Ω

2.5dBi

50Ω

2.1dBi (peak)

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:

The Telegesis ETRX351 and ETRX357 with integrated Antenna as well as the ETRX351HR and the ETRX357HR including the antennas listed in Table 2 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.

FCC ID: S4GEM35XA

4 Rufa (on board) Antenova Chip

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. The module and associated antenna must be installed to provide a separation distance of at least 20cm from all persons and must not transmit simultaneously with any other antenna or transmitter.

EAD Ltd. [6] ¼ Wave

Table 2: Approved Antennae

0dBi

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ETRX35x Product Manual (Rev 1.21)

2.2 IC (Industry Canada) Approvals

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.

The Telegesis ETRX351 and ETRX357 with integrated Antenna as well as the ETRX351HR and the ETRX357HR modules have been approved by Industry Canada to operate with the antenna types listed in Table 2 with the maximum permissible gain and required antenna impedance for each antenna type indicated. Antenna types not included in this list, having a gain greater than the maximum gain indicated for that type, are strictly prohibited for use with this device.

IC-ID: 8735A-EM35XA

• This device complies with Industry Canada license-exempt RSS standard(s). Operation is subject to the following two conditions: (1) thi s device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device.

• Und

•

The labelling requirements for Industry Canada are similar to those of the FCC. Again a clearly visibly label 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.

er Industry Canada regulations, this radio transmitter may only operate using an antenna of a type and maximum (or lesser) gain approved for the transmitter by Industry Canada. To reduce potential radio interference to other users, the antenna type and its gain should be so chosen that the equivalent isotropically radiated power (e.i.r.p.) is not more than that permitted for successful communication.

This module complies with FCC and Industry Canada RF radiation exposure limits set forth for general population. To maintain compliance, this module must not be colocated or operating in conjunction with any other antenna or transmitter. This device has been designed to operate with the antennas listed in Table 2, and having a maximum gain of 2.5 dBi. A nte nn as not included in this list or having a gain greater than 2.5 dBi are strictly prohibited for use with this device. The required antenna impedance is 50 ohms.

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ETRX35x Product Manual (Rev 1.21)

2.5 Australia and New Zealand (C-Tick)

2.4 ICASA Approvals

2.3 European Certification (ETSI)

The ETRX351, ETRX357, ETRX351HR and ETRX357HR modules are in conformity with the essential requirements and other relevant requirements of the Radio Equipment Directive (RED) (2014/53/EU). These include

•

Radio: EMC:

• EN 301 489-

EN 300 328 v2.1.1 EN 301 489-17 v3.1.1

1 V2.1.1

• Safety: IEC 60950-1:2005, IEC 60950-1:2005/AMD1:2009, IEC 60950-1:2005/AMD2:2013

Please note that every application using the modules will need to perform the radio EMC tests on the end product, according to EN 301 489-17. It is ultimately the responsibility of the manufacturer to ensure the compliance of the end product. The specific product assembly may have an impact to RF radiated characteristics, and manufacturers should carefully consider RF radiated testing with the end-product assembly. A formal DoC is available via www.silabs.com The modules are in conformity with the essential requirements and other relevant requirements of the Radio Equipment Directive (RED) with the antennae listed in Table 2.

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

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

In order to have a C-Tick mark on an end product integrating an ETRX35x device, a company must comply with a or b below.

a). have a company presence in Australia. b). have a company/distributor/agent in Australia that will sponsor the importing of the end product.

ETRX351 and ETRX357

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ETRX35x Product Manual (Rev 1.21)

2.6 Brazil

The ETRX357 and ETRX357HR have been certified to be used in Brazil. The Anatel ID for both module variants is 03190 -19-03402. To comply to Brazil ian regulations it is required to disp lay Anatel related information including, but not limited to the graphics below in the end-product’s user guide.

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ETRX35x Product Manual (Rev 1.21)

2.8 IEEE 802.15.4

2.7 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.

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.

ETRX351 and ETRX357

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ETRX35x Product Manual (Rev 1.21)

2.9 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.

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ETRX35x Product Manual (Rev 1.21)

3 Module Pinout

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.

“Important Note: If designers would like to keep open the option of using either standard or long range modules in the same product please note the following. The ETRX35x series and the ETRX35x-LRS series of modules are footprint compatible, but on the ETRX35x-LRS series pins PB0 and PC5 of the EM357 are used internally to control the front-end module and are not available to the user.”

ETRX351 and ETRX357

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ETRX35x Product Manual (Rev 1.21)

ETRX35x Pad

Name

EM35x Pin

Default use

Alternate Functions

GND

PC5 {1}

11 TX_ACTIVE

PC6

I/O

OSC32B, nTX_ACTIVE

PC7

I/O

OSC32A, OSC32_EXT

PA7 {5}

I/O

TIM1C4

PB3 {2,3}

I/O, CTS

SC1nCTS, SC1SCLK, TIM2C3

nReset {6}

nReset

PB4 {2,3}

I/O, RTS

TIM2C4, SC1nRTS, SC1nSSEL

PA0

I/O

TIM2C1, SC2MOSI

PA1

I/O

TIM2C3, SC2SDA, SC2MISO

PA2

I/O

TIM2C4, SC2SCL, SC2SCLK

PA3

I/O

SC2nSSEL, TRACECLK, TIM2C2

GND

PA4

I/O

ADC4, PTI_EN, TRACEDATA

PA5 {4}

I/O

ADC5, PTI_DATA, nBOOTMODE, TRACEDATA3

PA6 {5}

I/O

TIM1C3

PB1 {3}

TXD

SC1MISO, SC1MOSI, SC1SDA, SC1TXD, TIM2C1

PB2 {3}

RXD

SC1MISO, SC1MOSI, SC1SCL, SC1RXD, TIM2C2

GND

JTCK

32 SWCLK

PC2

I/O

JTDO, SWO

PC3

I/O

JTDI

PC4

I/O

JTMS, SWDIO

PB0

I/O, IRQ

VREF, IRQA, TRACECLK, TIM1CLK, TIM2MSK

PC1

I/O

ADC3, SWO, TRACEDATA0

PC0 {5}

I/O

JRST, IRQD, TRACEDATA1

PB7 {5}

I/O

ADC2, IRQC, TIM1C2

PB6 {5}

I/O

ADC1, IRQB, TIM1C1

PB5

I/O

ADC0, TIM2CLK, TIM1MSK

GND

Vcc

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.

The device sends its data on TXD and receives on RXD.

{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)

{6} nRESET is level-sensitive, not edge-sensitive. The module is held in the reset state while nRESET is

low.

See also the table “Module pads and functions” in the ETRX357 Development Kit Product Manual. Refer to Ember’s EM357 manual for details of the alternate functions and pin names.

+ 28 hidden pages

Silicon Labs ETRX351, ETRX357 User manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Table of Contents

FCC ID: S4GEM35XA

IC-ID: 8735A-EM35XA