Laird Connectivity SIFLEX2 Modular Transmitter User Manual
LS Research, LLC Modular Transmitter
user manual
SIFLEX02
TRANSCEIVER MODULE
MODULE USER’S GUIDE
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Wednesday, November 18, 2009
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SiFLEX02 TRANSCEIVER MODULE
MODULE USER’S GUIDE
Table of Contents
1Introduction ..................................................................................................................... 3
1.1
Purpose & Scope ....................................................................................................................... 3
1.2
Audience .................................................................................................................................... 3
1.3
Applicable Documents ............................................................................................................... 3
1.4
Revision History ......................................................................................................................... 3
2Supporting Ping Pong Range Test on Host Board ...................................................... 4
3Module Application Circuits ........................................................................................... 5
3.1
CAD Symbols ............................................................................................................................ 5
3.2
Recommended Application Connections - JTAG ...................................................................... 5
3.3
Recommended Application Connections - AVRISP .................................................................. 6
4Wakeup/Reset Alerts ...................................................................................................... 7
4.1
Wakeup Alert ............................................................................................................................. 7
4.2
Reset Alert ................................................................................................................................. 7
5Antenna Options and PCB Footprint............................................................................. 8
5.1
Footprint Overview .................................................................................................................... 8
5.2
Wire Antenna ............................................................................................................................. 9
5.3
U.FL Connector and Helical Antenna ...................................................................................... 10
5.4
Castellated Antenna ................................................................................................................ 13
5.5
Carrier Board Alignment Holes ................................................................................................ 15
5.6
Compatibility ............................................................................................................................ 18
6Agency Statements ....................................................................................................... 19
6.1
Federal Communication Commission Interference Statement ................................................ 19
6.2
Industry Canada Statements ................................................................................................... 19
6.3
OEM Responsibilities to comply with FCC and Industry Canada Regulations ....................... 20
6.4
End Product Labeling .............................................................................................................. 20
7Contacting LS Research ............................................................................................... 22
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SiFLEX02 TRANSCEIVER MODULE
MODULE USER’S GUIDE
1 Introduction
1.1 Purpose & Scope
The purpose of this document is to provide details regarding the use of the SiFLEX
transceiver module with the host. This document describes the electrical and wiring
considerations when interfacing the SiFLEX module with a host board.
1.2 Audience
This document is intended to be read by engineers and technical management. A
general knowledge of common engineering practices is assumed.
1.3 Applicable Documents
• SiFLEX Datasheet
• SiFLEX Host Protocol User’s Guide
1.4 Revision History
Date Change Description Revision
8-18-09 Initial release. 1.0
9-21-09 Updated figures 1 and 2. 1.01
11-04-09 Updated section 3 to include information on waking up
from sleep. Added new section on footprint. 1.10
11-16-09 Updated section 6.2 for antenna options. Updated
section 6.4 for FCC/IC numbers 1.11
11-18-09 Added helical antenna option to section 6.2 1.12
Table 1 Revision History
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2 Supporting Ping Pong Range Test on Host Board
See the Development Kit User’s Guide for detailed information
regarding Ping Pong Range Test usage.
The Ping Pong Range Test firmware is built into the module firmware. This allows for
the test to be used on the application host board. The following considerations need to
be made in order to utilize the test.
2.1.1 Power
A nominal 3.3 VDC power supply should be connected to the VCC - 3V3DC pin (26) on
the module. Also, a ground connection on the GND pin (44) is required. If batteries are
used be sure to install the jumper on J2 between pins 2-3.
2.1.2 LED’s
Three LEDs should be connected to module pins 27-29. The cathode of each LED
should be each pin. The anode of each LED should be connected to the 3.3 V power
supply through a nominal resistor value in the range of 180 to 470 ohms. Module pin 27
should connect to a green LED, pin 28 should connect to a yellow LED, and pin 29 to a
red LED.
2.1.3 Switches
Module pin 31 should be connected to ground through a normally open tact switch. In
addition a 10k ohm pull-up resistor to VCC should be connected to this pin as well. This
switch is referred to as the USER1 button in the subsequent instructions.
Also, the RESET pin should be connected to ground through a momentary contact
normally open (NO) push button switch. This switch is referred to as the RESET button
in the subsequent instructions.
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3 Module Application Circuits
3.1 CAD Symbols
PADS CAD symbols for schematic and PCB can be downloaded from the LSR website
www.lsr.com.
3.2 Recommended Application Connections - JTAG
Figure 1 shows the minimum circuit connections required for the SiFLEX module, if
programming/debugging via AVR JTAGICE mkII. The LEDs and USER buttons are
needed for Ping Pong Range Test, otherwise they are optional. The LED’s during
normal operation flash to indicate module status (UART activity, RF activity, and
heartbeat). Note at the time of this writing the User2 button is not used.
The reset (nRESET) pin (14) is active low. On the SiFLEX module it is pulled high with a
14kΩ resistor. To reset the module, pull the pin low to ground for at least 100µS. This is
necessary to ensure a proper reset of the module.
(Optional LEDs)
(Optional buttons)
26 VCC UART TX 35
UART RX 36
PF3 27
11 TCK
12 TDO PF2 28
9TMS
10 TDI PF1 29
13 JTAG/PDI/JRST
14 nRESET PE5 31
44 GND PF0 30
JTAG Header
2 1
4 3
6 5
8 7
10 9
SiFLEX Module
3M
N2510-6002-UB
TX
RX
Module Reset
VCC
GND
USER1
Host
470 Ω
10 kΩ
47 nF
470 Ω
470 Ω
USER2
47 nF
10 kΩ
Green
Red
Yellow
RESET
1 kΩ
(Optional
button)
1 kΩ
Figure 1 Sample Application Circuit with JTAG
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3.3 Recommended Application Connections - AVRISP
Figure 2 shows the minimum circuit connections required for the SiFLEX module, if
programming with the AVRISP mkII. The AVRISP mkII can only be used for
programming; in-circuit debugging must be done via JTAG. This circuit is identical to the
one in Figure 1, with the exception of the connection for the AVRISP mkII.
(Optional LEDs)
(Optional buttons)
26 VCC UART TX 35
UART RX 36
PF3 27
13 JTAG/PDI/JRST
PF2 28
14 nRESET
PF1 29
PE5 31
44 GND PF0 30
ISP Header
SiFLEX Module
TX
RX
Module Reset
VCC
GND
USER1
Host
470 Ω
10 kΩ
47 nF
470 Ω
470 Ω
USER2
47 nF
10 kΩ
Green
Red
Yellow
21
43
65
RESET
1 kΩ
(Optional button)
1 kΩ
Figure 2 Sample Application Circuit with AVRISP
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SiFLEX02 TRANSCEIVER MODULE
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4 Wakeup/Reset Alerts
See host message types 0x1C (Set Wakeup/Reset Settings) and
0x9E (Wakeup/Reset Alert Status) in the SiFLEX Host Protocol
User’s Guide to use the features described below.
4.1 Wakeup Alert
The Wakeup Alert Status message can be used to alert the host microcontroller when it
wakes up from sleep. This useful for two main reasons:
• The host microcontroller knows that the SiFLEX module is ready to operate and can then
accept commands over the host interface.
• The host microcontroller knows the SiFLEX module has woken up from sleep due to an
errant condition. For example if noise appeared on the SiFLEX wakeup input pin and the
host microcontroller did not know it was out of sleep and drawing current, the power budget
could be exceeded.
To wake the SiFLEX module out of sleep simply send a dummy byte to the module. The
SiFLEX module will wake up from sleep in under 1mS, at which point the Wakeup Alert
Status message will be sent to the host, if enabled.
4.2 Reset Alert
The Reset Alert Status message can also be used to alert the host microcontroller when
the module has been reset. This useful so the host microcontroller knows that the
SiFLEX module is ready to operate and can then accept commands over the host
interface.
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5 Antenna Options and PCB Footprint
5.1 Footprint Overview
The footprint design on the carrier board will depend on the carrier board requirements,
desire for compatibility with other ModFLEX series modules, and the desired antenna.
Figure 3 Footprint Overview
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5.2 Wire Antenna
5.2.1 Footprint
The wire antenna and solder protruding on the bottom side of the module needs to be
seated in a hole so the module does not lift off the host board. See the footprint
information in the datasheet for the location of this hole.
Figure 4 Hole in carrier board when using wire antenna
5.2.2 Performance with Wire Antenna
The best antenna performance can be achieved by having the wire antenna
perpendicular to the module as illustrated below.
Figure 5 Best performance with wire antenna
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5.3 U.FL Connector and Helical Antenna
5.3.1 Module Footprint
If using the U.FL connector with an external antenna, or the helical antenna, you do not
need the extra provisions in the footprint for a wire or castellated antenna. Also you do
not need to hang the module off the end of the carrier board or have a cut out in the
carrier board. However if concerned with compatibility with other LSR ModFLEX
modules see section 0 for more information.
Figure 6 Module footprint without wire or helical antennas
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5.3.2 Removal of U.FL connector
Care should be taken when mating or un-mating the U.FL plug from its receptacle as
they are designed (by the manufacturer Hirose) for a maximum of 30 cycles (in practice
probably anything more than five cycles is too much). The outer shell of the mating plug
can bend or deform easily and not make good electrical contact, thus degrading RF
performance - sometimes significantly.
Figure 7 U.FL connector
A special tool exists to safely remove the U.FL cable. One supplier of this tool is Hirose
Electronics, their part number is U.FL-LP(V)-N-2. See picture below for what the tool
looks like and how to use it.
Figure 8 U.FL extraction tool
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To disconnect connectors, insert the end portion of the extraction tool under the
connector flanges and pull off vertically, in the direction of the connector mating axis..
Figure 9 Using extraction tool
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5.4 Castellated Antenna
The castellated antenna option allows the use of a RF connector or PCB trace antenna
on the modules carrier board. This option is NOT included with the Module’s FCC/IC
Certification. It will require an additional certification. LS Research is equipped with a
certification lab and can assist in getting this done at a reasonable cost in a short period
of time.
The castellated antenna option is NOT available on all ModFLEX modules from LS
Research. See section 5.6 for more information.
Use of the castellated antenna will require the three pads shown in the figure below. If
the castellated antenna option is not needed the pads may be eliminated from the
footprint.
Figure 10 Pads intended for castellated antenna option
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Special care in routing the RF signal on the carrier board is needed. LS Research has a
full palette of design services, including RF board layout, and would be happy to assist.
Other guidelines are listed below:
• Keep the RF trace as short as possible.
• Ensure the impedance of the RF trace is kept at 50 ohms.
Figure 11 Using the castellated antenna
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5.5 Carrier Board Alignment Holes
The ModFLEX modules have two 0.032” diameter non-plated holes in the PCB that can
be used to align the module to the carrier board. When designing the carrier board it is
recommended to include two matching alignment holes with copper pads surrounding
the holes on the bottom side of the board. The purpose of the copper pads allows for
soldering alignment pins when the carrier board is used as an alignment fixture, which is
described in the following sections.
Figure 12 Alignment holes on module and carrier board
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5.5.1 Constructing an alignment fixture
Any carrier board can be made into an alignment fixture. When using the carrier board
as an alignment fixture the alignment pins can be soldered to the bare carrier board to
prevent them from falling out. Then by adding standoffs to the bare carrier board you
have created an alignment fixture.
Figure 13 Alignment fixture overview
Step 1: Make an alignment fixture by soldering two Mill-Max 3120-2 series pins or
equivalent into the PCB being used for the alignment fixture. For spacing, use 1/8”
standoffs between this board and the target carrier board.
Figure 14 Constructing an alignment fixture
Step 2: Carefully place the target carrier board through the pins on the alignment fixture.
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Figure 15 Placing target carrier board
Step 3: Drop the ModFLEX module onto the carrier board through the alignment pins
and solder the module to the carrier board.
Figure 16 Placing target module
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5.6 Compatibility
Not all ModFLEX modules have the same antenna options. To use the modules
interchangeably on a carrier board, the designs outlined below must be employed.
Option 1: The carrier board should be designed so the module overhangs the edge of
the board 0.23” as pictured below.
Figure 17 Overhang the Module (dimensions in inches)
Option 2: Design an opening in the carrier board. A minimum opening is shown below.
Figure 18 Opening in the carrier board.
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6 Agency Statements
6.1 Federal Communication Commission Interference Statement
This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a residential installation. This
equipment generates uses and can radiate radio frequency energy and, if not installed
and used in accordance with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and on, the
user is encouraged to try to correct the interference by one of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.
• Consult the dealer or an experienced radio/TV technician for help.
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 CAUTION: Any changes or modifications not expressly
approved by the party responsible for compliance could void the
user's authority to operate this equipment.
6.2 Industry Canada Statements
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.
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 device has been designed to operate with the antennas listed below, and having a
maximum gain of 2 dB. Antennas not included in this list or having a gain greater than 2
dB are strictly prohibited for use with this device. The required antenna impedance is 50
ohms.
• Wire monopole – 3.2 inch, 22 AWG solid copper wire, pvc insulated.
• External dipole – Nearson S467AH-915, RP-SMA on 6” cable.
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• On board chip helical – Pulse Engineering W3112A
6.3 OEM Responsibilities to comply with FCC and Industry Canada
Regulations
The SiFLEX Module has been certified for integration into products only by OEM
integrators under the following conditions:
1. The antenna(s) must be installed such that a minimum separation distance of 20cm
is maintained between the radiator (antenna) and all persons at all times.
2. The transmitter module must not be co-located or operating in conjunction with any
other antenna or transmitter.
As long as the two conditions above are met, further transmitter testing will not be
required. However, the OEM integrator is still responsible for testing their end-product for
any additional compliance requirements required with this module installed (for example,
digital device emissions, PC peripheral requirements, etc.).
IMPORTANT NOTE: In the event that these conditions cannot be met
(for certain configurations or co-location with another transmitter),
then the FCC and Industry Canada authorizations are no longer
considered valid and the FCC ID and IC Certification Number cannot
be used on the final product. In these circumstances, the OEM
integrator will be responsible for re-evaluating the end product
(including the transmitter) and obtaining a separate FCC and
Industry Canada authorization.
6.4 End Product Labeling
The SiFLEX Module is labeled with its own FCC ID and IC Certification Number. If the
FCC ID and IC Certification Number are not visible when the module is installed inside
another device, then the outside of the device into which the module is installed must
also display a label referring to the enclosed module. In that case, the final end product
must be labeled in a visible area with the following:
“Contains Transmitter Module FCC ID: TFB-SiFLEX2”
“Contains Transmitter Module IC: 5969A-SiFLEX2”
or
“Contains FCC ID: TFB-SiFLEX2”
“Contains IC: 5969A-SiFLEX2”
The OEM of the SiFLEX Module must only use the approved antenna(s) listed above,
which have been certified with this module.
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SiFLEX02 TRANSCEIVER MODULE
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The OEM integrator has to be aware not to provide information to the end user regarding
how to install or remove this RF module or change RF related parameters in the user
manual of the end product.
The user manual for the end product must include the following information in a
prominent location:
To comply with FCC and Industry Canada RF radiation exposure limits for
general population, the antenna(s) used for this transmitter must be
installed such that a minimum separation distance of 20cm is maintained
between the radiator (antenna) and all persons at all times and must not
be co-located or operating in conjunction with any other antenna or
transmitter.
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7 Contacting LS Research
Headquarters LS Research, LLC
W66 N220 Commerce Court
Cedarburg, WI 53012-2636
USA
Tel: 1(262) 375-4400
Fax: 1(262) 375-4248
Website www.lsr.com
Technical Support support@lsr.com
Sales Contact sales@lsr.com
The information in this document is provided in connection with LS Research (hereafter referred to as
“LSR”) products. No license, express or implied, by estoppel or otherwise, to any intellectual property right
is granted by this document or in connection with the sale of LSR products. EXCEPT AS SET FORTH IN
LSR’S TERMS AND CONDITIONS OF SALE LOCATED ON LSR’S WEB SITE, LSR ASSUMES NO
LIABILITY WHATSOEVER AND DISCLAIMS ANY EXPRESS, IMPLIED OR STATUTORY WARRANTY
RELATING TO ITS PRODUCTS INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTY OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT. IN NO
EVENT SHALL LSR BE LIABLE FOR ANY DIRECT, INDIRECT, CONSEQUENTIAL, PUNITIVE,
SPECIAL OR INCIDENTAL DAMAGES (INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS
OF PROFITS, BUSINESS INTERRUPTION, OR LOSS OF INFORMATION) ARISING OUT OF THE USE
OR INABILITY TO USE THIS DOCUMENT, EVEN IF LSR HAS BEEN ADVISED OF THE POSSIBILITY
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completeness of the contents of this document and reserves the right to make changes to specifications
and product descriptions at any time without notice. LSR does not make any commitment to update the
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and shall not be used in, automotive applications. LSR’s products are not intended, authorized, or
warranted for use as components in applications intended to support or sustain life.