SIFLEX02 TRANSCEIVER MODULE MODULE USER’S GUIDE Powered By Last updated Wednesday, November 18, 2009 The information in this document is subject to change without notice. Confirm the data is current by downloading the latest revision from www.lsr.com. SFLX-UG-0002-01.
SiFLEX02 TRANSCEIVER MODULE MODULE USER’S GUIDE Table of Contents 1 Introduction ..................................................................................................................... 3 1.1 1.2 1.3 1.4 Purpose & Scope ....................................................................................................................... 3 Audience ....................................................................................................................................
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 1.
SiFLEX02 TRANSCEIVER MODULE MODULE USER’S GUIDE 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.
SiFLEX02 TRANSCEIVER MODULE MODULE USER’S GUIDE 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.
SiFLEX02 TRANSCEIVER MODULE MODULE USER’S GUIDE 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.
SiFLEX02 TRANSCEIVER MODULE MODULE USER’S GUIDE 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.
SiFLEX02 TRANSCEIVER MODULE MODULE USER’S GUIDE 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 The information in this document is subject to change without notice. Confirm the data is current by downloading the latest revision from www.lsr.com. SFLX-UG-0002-01.
SiFLEX02 TRANSCEIVER MODULE MODULE USER’S GUIDE 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.
SiFLEX02 TRANSCEIVER MODULE MODULE USER’S GUIDE 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.
SiFLEX02 TRANSCEIVER MODULE MODULE USER’S GUIDE 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.
SiFLEX02 TRANSCEIVER MODULE MODULE USER’S GUIDE 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 The information in this document is subject to change without notice. Confirm the data is current by downloading the latest revision from www.lsr.com. SFLX-UG-0002-01.
SiFLEX02 TRANSCEIVER MODULE MODULE USER’S GUIDE 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.
SiFLEX02 TRANSCEIVER MODULE MODULE USER’S GUIDE 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 The information in this document is subject to change without notice.
SiFLEX02 TRANSCEIVER MODULE MODULE USER’S GUIDE 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.
SiFLEX02 TRANSCEIVER MODULE MODULE USER’S GUIDE 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.
SiFLEX02 TRANSCEIVER MODULE MODULE USER’S GUIDE 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 The information in this document is subject to change without notice. Confirm the data is current by downloading the latest revision from www.lsr.com. SFLX-UG-0002-01.
SiFLEX02 TRANSCEIVER MODULE MODULE USER’S GUIDE 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.
SiFLEX02 TRANSCEIVER MODULE MODULE USER’S GUIDE 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.
SiFLEX02 TRANSCEIVER MODULE MODULE USER’S GUIDE • 6.3 On board chip helical – Pulse Engineering W3112A 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.
SiFLEX02 TRANSCEIVER MODULE MODULE USER’S GUIDE 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.
SiFLEX02 TRANSCEIVER MODULE MODULE USER’S GUIDE 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.
