ETRX35x Manual Datasheet by Silicon Labs

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SIIIEIJN LABS 5 Manual
©2019 Silicon Labs
ETRX35x Product Manual
Telegesis
TG-ETRX35X-PM-010-121
ETRX351 and ETRX357 Product Manual 1.21
ETRX35x ZIGBEE MODULES
PRODUCT MANUAL
Not Recommended for New Designs
ETRX351 and ETRX357
©2019 Silicon Labs
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ETRX35x Product Manual (Rev 1.21)
Table of Contents
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 Custom Firmware ........................................................................................................... 15
5.3 Software Interface .......................................................................................................... 16
6 ABSOLUTE MAXIMUM 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
.............................................................................................................. 29
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
Not Recommended for New Designs
ETRX351 and ETRX357
©2019 Silicon Labs
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ETRX35x Product Manual (Rev 1.21)
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 Packagingcarton ......................................................................................................... 37
18 ORDERING INFORMATION ............................................................................................. 38
19 ROHS DECLARATION .......................................................................................................... 39
20 DATA SHEET STATUS .................................................................................................... 39
21 RELATED DOCUMENTS .................................................................................................. 39
Not Recommended for New Designs
SILIEUN LABS
©2019 Silicon Labs
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Image not shown actual size; enlarged to show detail.
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.
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°C to +85°C
Long range version with a link budget of up to 124dB
available in the same form factor
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
Suggested Applications
AMRZigbee 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.
ETRX351 and ETRX357
Not Recommended for New Designs
357 SILIEDN LABS
ETRX351 and ETRX357
©2019 Silicon Labs
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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..
Module
Chip
Flash
RAM
ETRX351
EM351
128kB
12kB
ETRX351HR
EM351
128kB
12kB
ETRX357
EM357
192kB
12kB
ETRX357HR
EM357
192kB
12kB
Table 1: Memories
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.
1.1 Hardware Description
1 Introduction
Not Recommended for New Designs
ETRX351 and ETRX357
©2019 Silicon Labs
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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
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. 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.
2.1 FCC Approvals
2 Product Approvals
Item
Part No.
Manufacturer
Type
Impedance
Gain
1
BT-Stubby (straight)
EAD Ltd. [6]
¼ Wave
50Ω
0dBi
2
BT-Stubby (right-
angle)
EAD Ltd. [6] ¼ Wave
50Ω
0dBi
3
WH-2400-U2.5
Wellhope Wireless [7]
½ Wave
50Ω
2.5dBi
4 Rufa (on board) Antenova Chip
50Ω
2.1dBi
(peak)
Not Recommended for New Designs
ETRX351 and ETRX357
©2019 Silicon Labs
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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) this device may not cause
interference, and (2) this device must accept any interference, including interference
that may cause undesired operation of the device.
Under 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 co-
located 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. Antennas 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.
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.
2.2 IC (Industry Canada) Approvals
FCC Labelling Requirements
Not Recommended for New Designs
ETRX351 and ETRX357
©2019 Silicon Labs
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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:
EN 300 328 v2.1.1
EMC:
EN 301 489-17 v3.1.1
EN 301 489-
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.
2.5 Australia and New Zealand (C-Tick)
2.4 ICASA Approvals
2.3 European Certification (ETSI)
Not Recommended for New Designs
357 SILIEIJN LABS Modelo: ETRX357 0A NA TEL Agénnz Mammal up Ie/mmumaga's 03190-19-03402 "Este equipamento nfio tem dircito é protcgfio contra interferéncia prejudicial c n50 pode causar interferéncia em sistemas devidamente autorizados" Modelo: ETRX357HR “A NA TEI. Aginna Nzaonfl d. mmmummmn 03190-19-03402 "Este equipamcnto 1150 tem direito é protegfio contra interferéncia prejudicial c 11510 pode causar interferéncia em sistcmas devidamente autorizados" 21)
ETRX351 and ETRX357
©2019 Silicon Labs
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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 Brazilian regulations it is required to display Anatel
related information including, but not limited to the graphics below in the end-product’s user guide.
2.6 Brazil
Not Recommended for New Designs
ETRX351 and ETRX357
©2019 Silicon Labs
- 10
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.
2.8 IEEE 802.15.4
2.7 Declarations of Conformity
Not Recommended for New Designs
ETRX351 and ETRX357
©2019 Silicon Labs
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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.
2.9 The Zigbee Protocol
Not Recommended for New Designs
357 SILIEIJN LABS
ETRX351 and ETRX357
©2019 Silicon Labs
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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.”
3 Module Pinout
Not Recommended for New Designs
357 @ SILIEDN LABS 9Q. 7 u 7 7 7 7 7 7 7 7 7 7 7 7 7 7 _________________________71 -_________________________________.®~Q 00% -.=......._______________________ 3 ox: 21)
ETRX351 and ETRX357
©2019 Silicon Labs
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ETRX35x
Pad
Name
EM35x Pin
Default use
Alternate Functions
1
GND
GND
GND
2
PC5 {1}
11
TX_ACTIVE
3
PC6
13
I/O
OSC32B, nTX_ACTIVE
4
PC7
14
I/O
OSC32A, OSC32_EXT
5
PA7 {5}
18
I/O
TIM1C4
6
PB3 {2,3}
19
I/O, CTS
SC1nCTS, SC1SCLK, TIM2C3
7
nReset {6}
12
nReset
8
PB4 {2,3}
20
I/O, RTS
TIM2C4, SC1nRTS, SC1nSSEL
9
PA0
21
I/O
TIM2C1, SC2MOSI
10
PA1
22
I/O
TIM2C3, SC2SDA, SC2MISO
11
PA2
24
I/O
TIM2C4, SC2SCL, SC2SCLK
12
PA3
25
I/O
SC2nSSEL, TRACECLK, TIM2C2
13
GND
GND
GND
14
PA4
26
I/O
ADC4, PTI_EN, TRACEDATA
15
PA5 {4}
27
I/O
ADC5, PTI_DATA, nBOOTMODE, TRACEDATA3
16
PA6 {5}
29
I/O
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
20
GND
GND
GND
21
JTCK
32
SWCLK
22
PC2
33
I/O
JTDO, SWO
23
PC3
34
I/O
JTDI
24
PC4
35
I/O
JTMS, SWDIO
25
PB0
36
I/O, IRQ
VREF, IRQA, TRACECLK, TIM1CLK, TIM2MSK
26
PC1
38
I/O
ADC3, SWO, TRACEDATA0
27
PC0 {5}
40
I/O
JRST, IRQD, TRACEDATA1
28
PB7 {5}
41
I/O
ADC2, IRQC, TIM1C2
29
PB6 {5}
42
I/O
ADC1, IRQB, TIM1C1
30
PB5
43
I/O
ADC0, TIM2CLK, TIM1MSK
31
GND
GND
GND
32
Vcc
Vcc
Vcc
33
GND
GND
GND
Notes:
Table 3: Pin Information
{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.
Not Recommended for New Designs
357 SILIEIJN LABS m le W7 21)
ETRX351 and ETRX357
©2019 Silicon Labs
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integrated
antenna
Vreg
Vcc
1,8Vdc
LDO
1V8
LDO
1V25
EM35x
I/O
A/D
UART
I / O
RESET
5 JTAG
RESET
programming
U.FL socket
rf
terminal
selection,
filtering and
matching
circuitry
24MHz
Figure 2: Hardware Diagram
The ETRX351, ETRX351HR, ETRX357 and ETRX357HR are based on the Ember EM351 and
EM357 respectively. The EM351 and EM357 are fully integrated 2.4GHz Zigbee transceivers with a
32-bit ARM® Cortex M3TM microprocessor, flash and RAM memory, and peripherals.
The industry standard serial wire and JTAG programming and debugging interfaces together with
the standard ARM system debug components help to streamline any custom software development.
In addition to this a number of MAC functions are also implemented in hardware to help maintaining
the strict timing requirements imposed by the Zigbee and IEEE802.15.4 standards.
The new advanced power management features allow faster wakeup from sleep and new power
down modes allowing this 3rd generation module to offer a longer battery life than any 2nd generation
modules on the market.
The EM35x has fully integrated voltage regulators for both required 1.8V and 1.25V supply voltages.
The voltages are monitored (brown-out detection) and the built in power-on-reset circuit eliminates
the need for any external monitoring circuitry. An optional 32.768 kHz watch crystal can be
connected externally to pads 3 and 4 in case more accurate timing is required. To utilize the external
watch crystal custom firmware is required.
All GPIO pins of the EM351 or EM357 are accessible on the module’s pads. Whether signals are
used as general purpose I/Os, or assigned to a peripheral function like ADC is set by the firmware.
When using the Telegesis AT Commandset please refer to the AT Commandset manual and the
development kit manual for this information and when developing custom firmware please refer to
the EM35x datasheet [2].
4.1 Hardware Interface
4 Hardware Description
BALUN
Not Recommended for New Designs
357
ETRX351 and ETRX357
©2019 Silicon Labs
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The modules will be pre-loaded with a standalone bootloader which supports over-the-air
bootloading as well as serial bootloading of new firmware.
In order to enter the standalone bootloader using a hardware trigger pull PA5 to ground and power-
cycle or reset the module. To avoid entering the standalone bootloader unintentionally make sure
not to pull this pin down during boot-up unless the resistance to ground is >10kΩ. (A pull-up is not
required).
In addition to the standalone bootloader the modules also contain the current release of the
Telegesis AT-style command interface as described in the Telegesis AT command dictionary and
the Telegesis user guide. Check www.telegesis.com for updates. Each module comes with a unique
64-bit 802.15.4 identifier which is stored in non-volatile memory. The commands and responses
pass through the serial port of the ETRX35x as ASCII text, so a simple terminal application will
usually suffice. We provide Telegesis Terminal for interaction with the module but it is not an
essential feature.
The pre-loaded AT-style command interface firmware is based on the latest EmberZNet meshing
stack which implements routers/coordinators as well as (sleepy) end devices. [End devices have no
routing responsibility and therefore are allowed to go to sleep, whilst still being able to send and
receive messages via a parent router. In addition to classical sleepy and non-sleepy end devices
the module firmware also supports mobile (sleepy) end devices capable of changing their parent
quickly whenever they change their position within the network.]
A router is typically a mains powered device whilst a sleepy end device (SED) can be battery
powered.
The module is also able to act as a coordinator and Trust Centre through external host control. The
AT style command line supplies all the tools required to set up and manage a Zigbee network by
allowing easy access to the low-level functionality of the stack.
The Telegesis firmware uses the meshing and self healing EmberZNet PRO stack to overcome
many of the limitations of the tree network topology of the Zigbee 2006 stack by using the Zigbee
PRO featureset.
The Telegesis firmware allows low-level access to physical parameters such as channel and power
level. Parameters that define the functionality of the ETRX35x module and also allow standalone
functionality are saved in non-volatile memory organised in so-called S-Registers. The SPI and I2C
buses are not supported by the current firmware release, but can be used with custom firmware.
5 Firmware Description
Not Recommended for New Designs
357 SILIEIJN LABS 21)
ETRX351 and ETRX357
©2019 Silicon Labs
- 15 -
The ETRX3 Series Modules’ tokens will be pre-programmed with the settings shown in the table
below.
Token
Description
TG Default
MFG_CIB_OBS
Option Bytes
<not written>
MFG_CUSTOM_VERSION
Optional Version Number
<not written>
MFG_CUSTOM_EUI_64
Custom EUI
<not written>
MFG_STRING
Device Specific String
TELEGESIS
MFG_BOARD_NAME
Hardware Identifier
<Order Code>
MFG_MANUF_ID
Manufacturer ID
0x1010
MFG_PHY_CONFIG
Default Power Settings
0xFF26
MFG_BOOTLOAD_AES_KEY
Bootloader Key
<not written>
MFG_EZSP_STORAGE
EZSP related
<not written>
MFG_CBKE_DATA
SE Security
<not written>
MFG_INSTALLATION_CODE
SE Installation
<not written>
MFG_OSC24M_BIAS_TRIM
Crystal Bias
<not written>
Table 4. Manufacturing tokens
For high volume customers the firmware can be customised on request. In addition to this the ETRX3
series of modules is an ideal platform for developing custom firmware. In order to develop custom
firmware the Ember Insight toolchain is required.
5.2 Custom Firmware
5.1 Token Settings
Not Recommended for New Designs
ETRX351 and ETRX357
©2019 Silicon Labs
- 16 -
Using the default firmware the ETRX35x is controlled using a simple AT-style command interface
and (mostly) non-volatile S-Registers. In order to get a full listing of all the available AT-Commands,
please refer to the AT command dictionary document which corresponds to the firmware revision
you intend to use.
In addition to the command dictionary there are user guides explaining the features of the firmware
in more detail. If you need to find out which firmware resides on your module simply type ATI
followed by a carriage return and you will be prompted with the module’s manufacturing information.
The Development Kit manual describes how to upgrade the firmware either via a serial link or over
the air.
5.3 Software Interface
Not Recommended for New Designs
357 SILIEDN LABS -—— 1 Supply voltage Vcc -0.3 to +3.6 V—dc 2 Voltage on any Pad V -0.3 to V +0.3 Vdc Voltage on any Pad pin (PM, PAS. Q -40 to +105 9 o to 75 4 Module storage temperature range T 5 Reel storage temperature range T 7 Input RF level P 15 Bm a Reflow temperature Town Please refer to chapter 12 ”C - — description 0 description description 4 Moisture ~ w Level MSL MSLa Q) —v—1____ Supply voltage Vdc RF Input Frequency f 24105 24680 MHz RF Input Power p 0 dElm 21)
ETRX351 and ETRX357
©2019 Silicon Labs
- 17 -
No.
Item
Symbol
Absolute Maximum Ratings
Unit
1
Supply voltage
VCC
-0.3 to +3.6
Vdc
2
Voltage on any Pad
Vin
-0.3 to VCC +0.3
Vdc
3
Voltage on any Pad pin (PA4, PA5,
PB5, PB6, PB7, PC1), when used as an
input to the general purpose ADC with
the low voltage range selected
Vin
-0.3 to +2.0
Vdc
4
Module storage temperature range
Tstg
-40 to +105
°C
5
Reel storage temperature range
Tstrgreel
0 to 75
°C
6
Operating temperature range
Top
-40 to +85
°C
7
Input RF level
Pmax
15
dBm
8
Reflow temperature
TDeath
Please refer to chapter 12
°C
Table 5: Absolute Maximum Ratings
The absolute maximum ratings given above should under no circumstances be violated. Exceeding
one or more of the limiting values may cause permanent damage to the device.
Caution! ESD sensitive device. Precautions should be used when handling the device
in order to prevent permanent damage.
No.
Item
Symbol
Absolute Maximum Ratings
Unit
1
ESD on any pad according to
Human Body Model (HBM) circuit
description
VTHHBM
±2
kV
2
ESD on non-RF pads according to
Charged Device Model (CDM) circuit
description
VTHCDM
±400
V
3
ESD on RF terminal according to
Charged Device Model (CDM) circuit
description
VTHCDM
±225
V
4
Moisture Sensitivity Level
MSL
MSL3
Table 6: Absolute Maximum Ratings
Table 7: Recommended Operating Conditions
No.
Item
Conditon/
Remark Symbol Value Unit
Min
Typ
Max
1
Supply voltage
VCC
2.1
3.6
Vdc
2
RF Input Frequency
fC
2405
2480
MHz
3
RF Input Power
pIN
0
dBm
4
Operating temperature range
Top -40
+85 °C
6.2 Recommended Operating Conditions
6.1 Environmental Characteristics
6 Absolute Maximum Ratings
Not Recommended for New Designs
ETRX351 and ETRX357
©2019 Silicon Labs - 18 - ETRX35x Product Manual (Rev 1.21)
7 DC Electrical Characteristics
VCC = 3.0V, TAMB = 25°C, NORMAL MODE (non-Boost) unless otherwise stated
No. Item
Condition /
Remark
Symbol Value Unit
Min
Typ
Max
1
Module supply voltage
VCC
2.1
3.6
Vdc
Deep Sleep Current
2
Quiescent current,
internal RC oscillator
disabled
ISLEEP 0.4 µA
3
Quiescent current,
internal RC oscillator
enabled
ISLEEP 0.7 µA
4
Quiescent current,
including
32.768kHz oscillator
ISLEEP 1.0 µA
5
Quiescent current
including internal RC
oscillator and 32.768kHz
oscillator
ISLEEP 1.3 µA
Reset Current
6
Quiescent current
nReset asserted
IRESET 1.2 2.0 mA
Processor and Peripheral Currents
7
ARM® CortexTM M3,
RAM and flash memory
25°C, 12MHz
Core clock
IMCU 6.0 mA
8
ARM® CortexTM M3,
RAM and flash memory
25°C, 24MHz
Core clock
IMCU 7.5 mA
9
ARM® CortexTM M3,
RAM and flash memory
sleep current
25°C, 12MHz
Core clock IMCU 3.0 mA
10
ARM® CortexTM M3,
RAM and flash memory
sleep current
25°C, 6MHz Core
clock IMCU 2.0 mA
11 Serial controller current
Per serial
controller at max.
clock rate
ISC 0.2 mA
12
General purpose timer
current
Per timer at max.
clock rate
ITIM 0.25 mA
13
General purpose ADC
current
Max. Sample
rate, DMA
IADC 1.1 mA
RX Current
14
Radio receiver MAC and
Baseband
ARM® CortexTM
M3 sleeping.
IRX 22 mA
15
Receive current
consumption
Total, 12MHz
clock speed
IRX 25 mA
16
Receive current
consumption
Total, 24MHz
clock speed
IRX 26.5 mA
17
Receive current
consumption
BOOST MODE
Total, 12MHz
clock speed IRX 27 mA
18
Receive current
consumption
BOOST MODE
Total, 24MHz
clock speed IRX 28.5 mA
Not Recommended for New Designs
5 B A L N n. r. U S
ETRX351 and ETRX357
©2019 Silicon Labs
- 19 -
TX Current
19
Transmit current
consumption
at +3dBm module
output power
ITXVCC 31 mA
20
Transmit Current
consumption
BOOST MODE
at +8dBm module
output power
ITXVCC
42
mA
21
Transmit current
consumption
at +0dBm module
output power
ITXVCC 28.5 mA
22
Transmit current
consumption
at min. module
output power
ITXVCC 23.5 mA
23 Wake time from deep
sleep
From
wakeup
event to 1
st
100
µs
24
Shutdown time
From last
instruction into
deep sleep
5
µs
Table 8: DC Electrical Characteristics
Please Note: The average current consumption during operation is dependent on the firmware and
the network load, therefore these figures are provided in the command dictionary of the respective
firmware.
Not Recommended for New Designs
357 SILIEDN LABS 21)
ETRX351 and ETRX357
©2019 Silicon Labs
- 20 -
The digital I/Os of the ETRX35x module
VCC = 3.0V, TAMB = 25°C, NORMAL MODE unless otherwise stated
No. Item Condition/Remark Symbol Value Unit
Min Typ Max
1
Low Schmitt switching
threshold
Schmitt input threshold
going from high to low
V
SWIL
0.42 x
VCC
0.5 x V
CC
Vdc
2
High Schmitt switching
threshold
Schmitt input threshold
going from low to high
V
SWIH
0.62 x
VCC
0.8 x V
CC
MHz
3 Input current for logic 0 IIL -0.5 µA
4 Input current for logic 1 IIH 0.5 µA
5
Input Pull-up resistor
value
RIPU 24 29 34 kΩ
6
Input Pull-down resistor
value
RIPD 24 29 34 kΩ
7
Output voltage for logic 0
IOL = 4mA (8mA) for
standard (high
current) pads
VOL
0
0.18 x VCC
V
8
Output voltage for logic 1
IOH = 4mA (8mA)for
standard (high
current) pads
VOH
0.82 x
VCC
VCC
V
9 Output Source Current
Standard current
pad
IOHS 4 mA
10 Output Sink current
Standard current
pad
IOLS 4 mA
11
Output Source Current
High current pad (1)
IOHH
8
mA
12
Output Sink current
High current pad (1)
IOLH
8
mA
13
Total output current
IOH + IOL
40
mA
Table 9. Digital I/O Specifications
Notes
1) High current pads are PA6, PA7, PB6, PB7, PC0
8 Digital I/O Specifications
Not Recommended for New Designs
357 SILIEDN LABS I-— 1 ND resolution Up to 14 2 ND sample time for 7-bit conversion 5.33113 4 Reference Voltage 1.2V 5 Max current drain from Vrel pin 1mA 3.5MHz distance from carrier 21)
ETRX351 and ETRX357
©2019 Silicon Labs
- 21 -
The ADC is a first-order sigma-delta converter. For additional information on the ADC please refer
to section 10 of the EM35x datasheet.
No.
Item
1
A/D resolution
Up to 14 bits
2
A/D sample time for 7-bit conversion
5.33µs
3
A/D sample time for 14-bit conversion
682µs
4
Reference Voltage
1.2V
5
Max current drain from Vref pin
1mA
Table 10. A/D Converter Characteristics
VCC = 3.0V, TAMB = 25°C, NORMAL MODE measured at 50terminal load connected to the U.FL socket
No. Receiver Value Unit
Min
Typ
Max
1
Frequency range
2400
2500
MHz
2
Sensitivity for 1% Packet Error Rate (PER)
-100
-94
dBm
3
Sensitivity for 1% Packet Error Rate (PER) BOOST MODE
-102
-96
dBm
4
Saturation (maximum input level for correct operation)
0
dBm
5
High-Side Adjacent Channel Rejection
(1% PER and desired signal82dBm acc. to [1])
41
dB
6
Low-Side Adjacent Channel Rejection
(1% PER and desired signal82dBm acc. to [1])
44
dB
7
2nd High-Side Adjacent Channel Rejection
(1% PER and desired signal 82dBm acc. to [1])
53
dB
8
2nd Low-Side Adjacent Channel Rejection
(1% PER and desired signal82dBm acc. to [1])
52
dB
9
Channel Rejection for all other channels
(1% PER and desired signal82dBm acc. to [1])
40
dB
10
802.11g rejection centred at +12MHz or 13MHz
(1% PER and desired signal82dBm acc. to [1])
36
dB
11
Co-channel rejection
(1% PER and desired signal82dBm acc. to [1])
-6
dBc
12
Relative frequency error
(2x40ppm required by [1])
-120
120 ppm
13
Relative timing error
(2x40ppm required by [1])
-120
120 ppm
14
Linear RSSI range
40
dB
15
Output power at highest power setting
NORMAL MODE
BOOST MODE
0 3
8
dBm
16
Output power at lowest power setting
-55
dBm
17
Error vector magnitude as per IEEE802.15.4
5
15
%
18
Carrier frequency error
-40 (1)
40 (1)
ppm
19
PSD mask relative
3.5MHz distance from carrier
-20
dB
20
PSD mask absolute
3.5MHz distance from carrier
-30
dBm
Table 11. AC Electrical Characteristics
10 AC Electrical Characteristics
9 A/D Converter Characteristics
Not Recommended for New Designs
357 SILIEDN LABS 29 Phase noise at 10MHz offset - - e 31 Van FOR assen 00 36 QD‘QESMN value while the chip is reset 12 14.5 17 kn $6» 21)
ETRX351 and ETRX357
©2019 Silicon Labs
- 22 -
Notes
(1) Applies across the full ranges of rated temperature and supply voltage.
Please Note: For the relationship between EM35x power settings and module output power please
relate to chapter 10.1 of this document. When developing custom firmware the output power settings
described in this document relate directly to the EM35x power settings accessible via the Ember
stack API.
No.
Synthesiser Characteristics
Limit
Unit
Min
Typ
Max
22
Frequency range
2400
2500
MHz
23
Frequency resolution
11.7
kHz
24
Lock time from off state, with correct VCO DAC settings
100
µs
25
Relock time, channel change or Rx/Tx turnaround
100
µs
26
Phase noise at 100kHz offset
-75dBc/Hz
27
Phase noise at 1MHz offset
-100dBc/Hz
28
Phase noise at 4MHz offset
-108dBc/Hz
29
Phase noise at 10MHz offset
-114dBc/Hz
Table 12: Synthesiser Characteristics
No.
Power On Reset (POR) Specifications
Limit
Unit
Min
Typ
Max
30
VCC POR release
0.62
0.95
1.2
Vdc
31
VCC POR assert
0.45
0.65
0.85
Vdc
Table 13: Power On Reset Specifications
No.
nRESET Specifications
Limit
Unit
Min
Typ
Max
32
Reset Filter Time constant
2.1
12
16
µs
33
Reset Pulse width to guarantee a reset
26
µs
34
Reset Pulse width guaranteed not to cause reset
0
1
µs
35
Input pull-up resistor value while the chip is not reset
24
29
34
36
Input pull-up resistor value while the chip is reset
12
14.5
17
Table 14: nReset Specifications
Not Recommended for New Designs
SILIEDN LABS 10 Transt Power(dBm) Typical Tmnlmfl Pawn! m ZMUMHI v. Powel Sewing m zsc 710 Power Sefling (am) 10 357 21)
ETRX351 and ETRX357
©2019 Silicon Labs
- 23 -
The diagrams below show the typical output power and module current in dependency on module
EM35x power setting. Power settings above 3dBm have Boost Mode enabled. Please note that the
output power is independent of the supply voltage as the radio is supplied by an internally regulated
voltage.
Figure 3: Output Power vs. Power Setting
10.1 TX Power Characteristics
Not Recommended for New Designs
357 SILIEDN LABS Typical Transmit eunem vs iner Seminn uk 25c with CPU at 12mph “-045 ‘ I ‘ ‘ ‘ 0.04 , “ H.035 v 0.93 - 11.025 0.02 -sn 21)
ETRX351 and ETRX357
©2019 Silicon Labs
- 24 -
Figure 4: Module Current vs. Power Setting
Transmit current A
Not Recommended for New Designs
357 $9 SILIEDN LABS mem Seaway
ETRX351 and ETRX357
©2019 Silicon Labs
- 25 -
Figure 5: ETRX3 Physical Dimensions
Symbol
Explanation
Typical Distance
Tolerances
L
Length of the module
25.0mm
±0.13mm
W
Width of the module
19.0mm
±0.13mm
H
Height of the module
3.8mm
±0.1mm
A1
Distance centre of pad PCB edge
0.9mm
±0.13mm
A2
Pitch
1.27mm
n/a
R1
Keep-out Zone from corner of PCB
17.5mm
n/a
R2
Keep-out Zone from corner of PCB
4.1mm
n/a
X1
Distance centre of Antenna connector
PCB edge
3.8mm
±0.13mm
X2
Distance centre of Antenna connector
PCB edge
2.8mm
±0.13mm
Table 15: ETRX3 Physical Dimensions
For ideal RF performance when using the on-board antenna, the antenna should be located at the
corner of the carrier PCB. There should be no components, tracks or copper planes in the keep-out
area which should be as large as possible. When using the U.FL RF connector the keep-out area
does not have to be obeyed. Note: The modules transmit/receive range will depend on the antenna
used and also the housing of the finished product.
11 Physical Dimensions
Not Recommended for New Designs
Q 357 SILIEIJN LABS 21)
ETRX351 and ETRX357
©2019 Silicon Labs
- 26 -
Figure 6. Typical pad dimensions
Module weight: 2.9-3.0g depending on variant
Not Recommended for New Designs
357 SILIEIJN LABS 21)
ETRX351 and ETRX357
©2019 Silicon Labs
- 27 -
Recommended temperature profile
for reflow soldering
60 +60-20s
Temp.[°C] 230°C -250°C max.
220°C
150°C 200°C
90 ±30s
Time [s]
Figure 7. Recommended Reflow Profile
Use of No-Clean” solder paste is recommended to avoid the requirement for a cleaning process.
Cleaning the module is strongly discouraged because it will be difficult to ensure no cleaning agent
and other residuals are remaining underneath the shielding can as well as in the gap between the
module and the host board.
Please Note:
Maximum number of reflow cycles: 2
Opposite-side reflow is prohibited due to the module’s weight. (i.e. you must not place the
module on the bottom / underside of your PCB and re-flow).
12 Recommended Soldering Temperature Profile
Not Recommended for New Designs
SILIEIJN LABS Imprint ModeleTRX357 CE QR Code YYWW T FCC ID: S4GEM35XB IC: 8735A7EM35XB Anatel: 031907197 03402 Pin# 1 MadeleTRX357 (€41, YYWWT'I'I'I'TI' FCC ID: S4GEM35XA IC: 8735A7EM35XA Anatel: 03190-19-03402 www.silab5.com ESJB BUUSTUV Pink 1 Model:ETRX357HR “$13: YYWWTTTTTT FCC ID. S4GEM35XA |C18735A7EM35XA Anatel: 031904903402 www.5ilabs‘com EeJE EUUSIUV Drew}. Module Order Code. The CE Mark QR Code containing information in the format WWWMMABCDE YY: Last two digits of the assembly year WW: Twordigit workweek when the device was assembled Serial Number Code in the format YYWW YY: Last two digits of the assembly year WW: Twordigit workweek when the device was assembled 357 T : Manufacturing trace code The first letter is the device revision The FCC ID The IC ID The Anatel ID 21)
ETRX351 and ETRX357
©2019 Silicon Labs
- 28 -
Figure 8: Product Label
The characters HR” are only present on the versions with the U.FL antenna connector,
Imprint
Description
Model:ETRX357
Module Order Code.
CE
The CE Mark
QR Code
QR Code containing information in the format YYWWMMABCDE
YY: Last two digits of the assembly year
WW: Two-digit workweek when the device was assembled
MMABCDE: Silicon Labs unit code
YYWWTTTTTT
Serial Number Code in the format YYWWTTTTTT
YY: Last two digits of the assembly year
WW: Two-digit workweek when the device was assembled
TTTTTT: Manufacturing trace code. The first letter is the device revision
FCC ID: S4GEM35XB
The FCC ID
IC: 8735A-EM35XB
The IC ID
Anatel: 03190-19-
03402
The Anatel ID
Table 16: ETRX35x Label Details
13 Product Package Marking
Not Recommended for New Designs
SILIEIJN LABS 33 25.8mm 2% i.@mm—- _L T E E “f \‘I 28.8mm I'll-III.Ill-IIIIII;4444, |~—1. 27mm 19 357 21)
ETRX351 and ETRX357
©2019 Silicon Labs
- 29 -
In order to surface mount an ETRX3 series module, we recommend that you use pads which are
1mm wide and 1.2mm high. You must retain the keep-out zone shown in section 12, and ensure
that this keep-out area is free of components, copper tracks and/or copper planes/layers.
You must also ensure that there is no exposed copper on your layout which may contact with the
underside of the ETRX3 series module.
For best RF performance it is required to provide good ground connections to the ground pads of
the module. It is recommended to use multiple vias between each ground pad and a solid ground
plane to minimize inductance in the ground path.
Figure 9: Recommended Footprint
The land pattern dimensions above serve as a guideline.
We recommend that you use the same pad dimensions for the solder paste screen as you have for
the copper pads. However these sizes and shapes may need to be varied depending on your
soldering processes and your individual production standards. We recommend a paste screen
thickness of 120μm to 150μm.
Figure 6 shows the typical pad dimensions of the module and Figure 10 - Figure 12 in section 14.2
show examples of how to align the module on its host PCB.
14 Recommended Footprint
14.1 Pad dimensions
Not Recommended for New Designs
357
ETRX351 and ETRX357
©2019 Silicon Labs
- 30 -
Although the undersides of the ETRX3 series modules are fully coated, no exposed copper, such as
uncovered through-hole vias, planes or tracks on your board component layer, should be located
below the ETRX3 series module in order to avoid ‘shorts’. All ETRX3 series modules use a multilayer
PCB containing an inner RF shielding ground plane, therefore there is no need to have an additional
copper plane directly under the ETRX3 series module.
When placing the module please either locate the antenna in the corner as shown in Figure 10 so
that the recommended antenna keepout zone is being followed, or add a no copper zone as
indicated in Figure 12.
Figure 10. Typical placement
Figure 11. How to not place the Module
14.2 Recommended Placement
Not Recommended for New Designs
ETRX351 and ETRX357
©2019 Silicon Labs
- 31 -
Figure 12. Adding a no copper / no component area
Not Recommended for New Designs
ETRX351 and ETRX357
©2019 Silicon Labs
- 32 -
Since the RF performance of the module with the on board antenna is strongly dependent on the
proper location of the module on its carrier board, Figure 13 shows the reference carrier board which
was used during testing by Telegesis.
Figure 13. Reference Board
For best performance it is recommended to locate the antenna towards the corner of the carrier
board and to respect the recommended keep-out areas as described in section 11.
Finally to provide a good reference ground to the on board antenna, the carrier board should have
a ground plane spanning no less than 40 x 40mm. In many cases a smaller ground plane will suffice,
but degradation in radio performance could be the result.
14.3 Example carrier board
Not Recommended for New Designs
90 b __——___ @00 0 0 ii... 30 Ax
ETRX351 and ETRX357
©2019 Silicon Labs
- 33 -
The measurements below have been conducted on random samples out of mass production and
passed after the module has been exposed to standard room temperature and humidity for 1 hour.
No
Item
Limit
Condition
1
Vibration test Electrical parameter should be
in specification
Freq.:40Hz,Amplitude:1.5mm
20min. / cycle,1hrs. each of X and Y axis
2 Shock test the same as the above
Dropped onto hard wood from height of
50cm for 3 times
3 Heat cycle test the same as the above
-40°C for 30min. and +85°C for 30min.;
each temperature 300 cycles
4
Moisture test
the same as the above
+60°C, 90% RH, 300h
5
Low temp. test
the same as the above
-40°C, 300h
6
High temp. test
the same as the above
+85°C, 300h
Table 17: Reliability Tests
These specifications are intended to preserve the quality assurance of products as individual
components.
Before use, check and evaluate the module’s operation when mounted on your products. Abide
by these specifications when using the products. These products may short-circuit. If electrical
shocks, smoke, fire, and/or accidents involving human life are anticipated when a short circuit
occurs, then provide the following failsafe functions as a minimum:
(1) Ensure the safety of the whole system by installing a protection circuit and a protection
device.
(2) Ensure the safety of the whole system by installing a redundant circuit or another system
to prevent a single fault causing an unsafe status.
(1) Heat is the major cause of shortening the life of the modules. Avoid assembly and use
of the target equipment in conditions where the product’s temperature may exceed the
maximum allowable.
(2) Failure to do so may result in degrading of the product’s functions and damage to the
product.
(3) If pulses or other transient loads (a large load applied in a short time) are applied to the
products, before use, check and evaluate their operation when assembled onto your
products.
(4) These products are not intended for other uses, other than under the special conditions
shown below. Before using these products under such special conditions, check their
performance and reliability under the said special conditions carefully, to determine
whether or not they can be used in such a manner.
(5) In liquid, such as water, salt water, oil, alkali, or organic solvent, or in places where liquid
may splash.
16.2 Design Engineering Notes
16.1 Safety Precautions
16 Application Notes
15 Reliability Tests
Not Recommended for New Designs
ETRX351 and ETRX357
©2019 Silicon Labs
- 34 -
(6) In direct sunlight, outdoors, or in a dusty environment
(7) In an environment where condensation occurs.
(8) In an environment with a high concentration of harmful gas (e.g. salty air, HCl, Cl2, SO2,
H2S, NH3, and NOx)
(9) If an abnormal voltage is applied due to a problem occurring in other components or
circuits, replace these products with new products because they may not be able to
provide normal performance even if their electronic characteristics and appearances
appear satisfactory.
(10) Mechanical stress during assembly of the board and operation has to be avoided.
(11) Pressing on parts of the metal cover or fastening objects to the metal cover is not
permitted.
(1) The module must not be stressed mechanically during storage.
(2) Do not store these products in the following conditions or the performance characteristics
of the product, such as RF performance, may well be adversely affected:
(3) Storage in salty air or in an environment with a high concentration of corrosive gas, such
as Cl2, H2S, NH3, SO2, or NOX
(4) Storage in direct sunlight
(5) Storage in an environment where the temperature may be outside the range of C to
35°C range, or where the humidity may be outside the 45 to 85% range.
(6) Storage (before assembly of the end product) of the modules for more than one year
after the date of delivery at your company even if all the above conditions (1) to (3) have
been met, should be avoided.
(1) Dimensions of the tape
17.1 Embossed Tape
17 Packaging
16.3 Storage Conditions
Not Recommended for New Designs
357 SILIEIJN LABS Empty pockets Components Empty pockets Top cove: oaoooo,oaoooaoo.uooo.c WW 21)
ETRX351 and ETRX357
©2019 Silicon Labs
- 35 -
(2) Cover tape peel force
Force direction
Speed = 300mm/min.
Cover tape peel force
=0.0980.68N (1070g)
(3) Empty pockets
NB: Empty pockets in the populated area will be less than two per reel and those empty pockets
will not be consecutive.
Top cover tape will not obstruct the carrier tape holes and will not extend beyond the edges of
the carrier tape
Direction
(top view)
Component Orientation
(4) Quantity per reel: 600 pieces
(5) Marking: Part No. / Quantity / Lot No. and manufacturer part# with bar-code will be on
the reel
17.3 Reel Dimensions
17.2 Component Orientation
θ= 10deg
No.
Part
Not Recommended for New Designs
357 SILIEDN LABS
ETRX351 and ETRX357
©2019 Silicon Labs
- 36 -
Not Recommended for New Designs
ETRX351 and ETRX357
©2019 Silicon Labs
- 37 -
(6) Each reel will be packed in a hermetically-sealed bag containing desiccant and a
humidity indicator card
(7) Marking: Part No. / Quantity / Lot No. and manufacturer part# with bar-code
(8) Each reel and bag will be placed in a cardboard carton of nominal dimensions
343 x 338 x 68 mm.
(9) Weight of carton containing reel of 600 modules: 2.51kg approx.
17.5 Packaging carton
17.4 Packaging - bag
Not Recommended for New Designs
SILIEDN (A55 '0
ETRX351 and ETRX357
©2019 Silicon Labs
- 38 -
Ordering/Product Code
Description
ETRX351
ETRX357 Telegesis Wireless Mesh Networking Module with Ember
Zigbee Technology:
Based on Ember EM351 or EM357
Telegesis AT Style Command Interpreter based on
EmberZNet meshing and self-healing Zigbee PRO
stack
Integrated 2.4GHz Antenna
ETRX351HR
ETRX357HR Telegesis Wireless Mesh Networking Module with Ember
Zigbee Technology:
Based on Ember EM351 or EM357
Telegesis AT Style Command Interpreter based on
EmberZNet meshing and self-healing Zigbee PRO
stack
U.FL coaxial Antenna Connector
ETRX3DVK Telegesis Development Kit with:
3 x ETRX35xDV Development Boards
3 x USB cables
2 x ETRX35x on carrier boards
2 x ETRX35xHR on carrier boards
2 x ETRX35x-LR on carrier boards
2 x ETRX35xHR-LR on carrier boards
1 x ETRX2USB USB stick
2 x ½-wave antennae
2 x ¼-wave antennae
Notes:
Customers’ PO’s must state the Ordering/Product Code.
There is no “blank” version of the ETRX35x modules available. All Modules are pre-
programmed with the Telegesis AT style command interpreter based on the EmberZNet
stack. (In case it is desired to program custom firmware the pre-programmed firmware can
simply be overwritten).
18 Ordering Information
Not Recommended for New Designs
ETRX351 and ETRX357
©2019 Silicon Labs
- 39 -
Declaration of environmental compatibility for supplied products:
Hereby we declare based on the declaration of our suppliers that this product does not contain any
of the substances which are banned by Directive 2011/65/EU (RoHS2) or if they do, contain a
maximum concentration of 0,1% by weight in homogeneous materials for:
Lead and lead compounds
Mercury and mercury compounds
Chromium (VI)
PBB (polybrominated biphenyl) category
PBDE (polybrominated biphenyl ether) category
And a maximum concentration of 0.01% by weight in homogeneous materials for:
Cadmium and cadmium compounds
Telegesis (UK) Ltd. reserves the right to change the specification without notice, in order to improve
the design and supply the best possible product. Please consult the most recently issued data sheet
before initiating or completing a design.
[1] IEEE Standard 802.15.42003 Wireless Medium Access Control (MAC) and Physical Layer
(PHY) Specifications for Low-Rate Wireless Personal Area Networks (LR-WPANs)
[2] Datasheet EM35x, Silicon Labs. (www.silabs.com)
[3] Datasheet U.FL-Series 2004.2 Hirose Ultra Small Surface Mount Coaxial Connectors - Low
Profile 1.9mm or 2.4mm Mated Height
[4] The Zigbee specification (www.zigbee.org)
[5] Specification for Antenova Rufa Antenna (www.antenova.com)
[6] Embedded Antenna design Ltd. (EAD Ltd.) (www.ead-ltd.com)
[7] Wellhope Communication Equipment (www.wellhope-wireless.com)
21 Related Documents
20 Data Sheet Status
19 RoHS Declaration
Not Recommended for New Designs
@ SILICON LABS
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Connected.
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Disclaimer
Silicon Labs intends to provide customers with the latest, accurate, and in-depth documentation of all peripherals and modules available for system and software implementers using or
intending to use the Silicon Labs products. Characterization data, available modules and peripherals, memory sizes and memory addresses refer to each specific device, and "Typical"
parameters provided can and do vary in different applications. Application examples described herein are for illustrative purposes only. Silicon Labs reserves the right to make changes without
further notice to the product information, specifications, and descriptions herein, and does not give warranties as to the accuracy or completeness of the included information. Without prior
notification, Silicon Labs may update product firmware during the manufacturing process for security or reliability reasons. Such changes will not alter the specifications or the performance
of the product. Silicon Labs shall have no liability for the consequences of use of the information supplied in this document. This document does not imply or expressly grant any license to
design or fabricate any integrated circuits. The products are not designed or authorized to be used within any FDA Class III devices, applications for which FDA premarket approval is required
or Life Support Systems without the specific written consent of Silicon Labs. A "Life Support System" is any product or system intended to support or sustain life and/or health, which, if it fails,
can be reasonably expected to result in significant personal injury or death. Silicon Labs products are not designed or authorized for military applications. Silicon Labs products shall under no
circumstances be used in weapons of mass destruction including (but not limited to) nuclear, biological or chemical weapons, or missiles capable of delivering such weapons. Silicon Labs
disclaims all express and implied warranties and shall not be responsible or liable for any injuries or damages related to use of a Silicon Labs product in such unauthorized applications.
Trademark Information
Silicon Laboratories Inc.® , Silicon Laboratories®, Silicon Labs®, SiLabs® and the Silicon Labs logo®, Bluegiga®, Bluegiga Logo®, ClockBuilder®, CMEMS®, DSPLL®, EFM®,
EFM32®, EFR, Ember®, Energy Micro, Energy Micro logo and combinations thereof, "the world’s most energy friendly microcontrollers", Ember®, EZLink®, EZRadio®, EZRadioPRO®,
Gecko®, Gecko OS, Gecko OS Studio, ISOmodem®, Precision32®, ProSLIC®, Simplicity Studio®, SiPHY®, Telegesis, the Telegesis Logo®, USBXpress® , Zentri, the Zentri logo and Zentri
DMS, Z-Wave®, and others are trademarks or registered trademarks of Silicon Labs. ARM, CORTEX, Cortex-M3 and THUMB are trademarks or registered trademarks of ARM Holdings.
Keil is a registered trademark of ARM Limited. Wi-Fi is a registered trademark of the Wi-Fi Alliance. All other products or brand names mentioned herein are trademarks of their respective
holders.
Not Recommended for New Designs

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