MRF24WB0MA/MRF24WB0MB Data Sheet
Contents
1. 50 0 50 100 150 200 250 300 Time Seconds TABLE 1 2 MODULE REFLOW PROFILE Zone 1 2 3 4 5 6 7 8 Temperature C 180 180 200 200 200 220 265 270 Note 1 Conveyor Speed 90 cm min DS70632A page 12 Preliminary 2010 Microchip Technology Inc ou Bojouuoe diu20J9 IA 0108 9680 2 90280 2 0 CIRCUIT DESCRIPTION The MRF24WBOMA MRF24WBONB interfaces to Microchip PIC18 PIC24 dsPIC33 and PIC32 microprocessors with a minimal of external components through digital only connections This section details use of the module starting with an example host connection as shown in Figure 2 1 2 1 Schematic FIGURE 2 1 MRF24WBOMA MRF24WBOMB EXAMPLE APPLICATION SCHEMATIC 3 3V 3 3V 01 5 3 3 1 MRF 24WBOMA 7 7 GND 36 2 501 gt lt 8 R2 gt gt 4 7Kq To JTAG gt JTAG_TCK INT 32 1 Interface gt JTAG_TMS 500 31 JTAG_TDI NC NC To System 30 RESET GND Reset Controller 29 Connect to DA NOD 28 3 3V JTAG EN pin JTAG_RST GND 27 To Host T P GND DEBUG TX 26 Microcontroller R3 NC DEBUG_RX 25 C1 7 GND 24 1 0 NC gt NC CS 155 Host _ gt WS pena ETE _ in Microcontroller VDD HIBERNATE 2 P R4 G2. If the MRF24WBOMA MRF24WBOMB module is used in a portable application i e the antenna is less than 20 cm from persons during operation the integrator is responsible for performing Specific Absorption Rate SAR testing in accordance with FCC rules 2 1091 3 1 2 HELPFUL WEB SITES Federal Communications Commission FCC http www fcc gov 3 2 Canada The MRF24WBOMA MRF24WBOMB module has been certified for use in Canada under Industry Canada IC Radio Standards Specification RSS RSS 210 and RSS Gen From Section 7 1 1 RSS Gen Issue 2 June 2007 Modular Transmitter Approval Host devices which contain separately certified modules do not need to be recertified provided that they meet the following conditions a The host device as a stand alone unit without any separately certified modules complies with all applicable Radio Standards Specifications b The host device and all the separately certified modules it contains jointly meet the RF expo sure compliance requirements of RSS 102 if applicable c The host device complies with the certification labeling requirements of each of the modules it contains The following example demonstrates labeling compliance NOTE Compliance of a module in its final configu ration is the responsibility of the applicant A host device will not be considered certified if the instruc tions regarding antenna configuration provided in the
3. Preliminary 2010 Microchip Technology Inc MRF24WBOMA MRF24WBOMB Table of Contents 1110 48815 gt 15 409 16 11 7 2 0 Circuit Description 18 3 0 Regulatory Approval 21 4 0 Electrical Characteristics 25 Appendix A Revision EHIStOEy f e er nie ree ete vai er 29 the Microchip Wep Ste Stapa C 31 Customer Change Notification Service 91 Customer Support 5291 Reader Response 32 Product dentificatior 5 eh lente Gude ie a Pe etre e Tz 33 OUR VALUED CUSTOMERS It is our intention to provide our valued customers with the best documentation possible to ensure successful use of your Microchip products To this end we will continue to improve our publications to better suit your needs Our publications will be refined and enhanced as new volumes and updates are introduced If you have any questions or comments regarding this publication please contact the Marketing Communications Department via E mail at docerrors microchip com or fax the Reader Response Form in the back of this data sheet to 480 792 4150 We welcome your feedback Most Current Data Sheet To obtain the most u
4. MICROCHIP MRF24WBOMA MRE24WBOMB Data Sheet 2 4 GHz IEEE Std 802 11b RF Transceiver Module Preliminary 0870632 Note the following details of the code protection feature on Microchip devices Microchip products meet the specification contained in their particular Microchip Data Sheet Microchip believes that its family of products is one of the most secure families of its kind on the market today when used in the intended manner and under normal conditions There are dishonest and possibly illegal methods used to breach the code protection feature All of these methods to our knowledge require using the Microchip products in a manner outside the operating specifications contained in Microchip s Data Sheets Most likely the person doing so is engaged in theft of intellectual property Microchip is willing to work with the customer who is concerned about the integrity of their code Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code Code protection does not mean that we are guaranteeing the product as unbreakable Code protection is constantly evolving We at Microchip are committed to continuously improving the code protection features of our products Attempts to break Microchip s code protection feature may be a violation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your software or other copyrighted work you may
5. 3 Current Consumption values represent Typical Peak currents and the measured current conditions were done with 85 duty cycle modulated signal Wi Fi applications typically operate at less than 85 TX duty cycle TX current is dependent on such criteria as transmit power setting and transmit data rate and band width being used RX current is affected by connection distance TABLE 4 5 RECEIVER AC CHARACTERISTICS Parameters Min Typ Max Units Flo 2412 2484 MHz RX Min Input Level Sensitivity 1Mbps 8 PER 91 dBm RX Min Input Level Sensitivity 2Mbps 8 PER 88 dBm RX Max Input Level Power 1Mbps 8 PER 4 dBm RX Max Input Level Power 2Mbps 8 PER 4 dBm Note 1 Nominal conditions 25C VDD 3 3V Flo 2437 MHz measurements at antenna port TABLE 4 6 TRANSMITTER AC CHARACTERISTICS Parameters Min Typ Max Units Flo 2412 2484 MHz Average Pout transmit spectrum mask compliant 10 dBm Average Pout gain step resolution from 5 to 10dBm 0 5 dB Average Pout gain step resolution from 5 to 5dbm 1 0 dB Average Pout settled variation 0 5 0 5 dB Note 1 Nominal conditions 25C VDD 3 3V Flo 2437 MHz 2 Mbps modulated signal measured at antenna port DS70632A page 26 Preliminary 2010 Microchip Technology Inc MRF24WBOMA MRF24WBOMB FIGURE 4 1 SPI INPUT TIMING 1 TSU THD l 1 1 f SI 1 MSb In A LSb In X High Imped SO igh Impedanc
6. and made available to Industry Canada on request for as long as the model is being marketed in Canada 3 2 1 HELPFUL WEB SITES Industry Canada http www ic gc ca 3 3 Europe The MRF24WBOMA MRF24WBOMB module has been certified for use in European countries The following testing has been completed Test standard ETSI EN 300 328 V1 7 1 2006 10 Maximum Transmit Power Maximum EIRP Spectral Density Frequency Range Radiated Emissions Test standards ETSI EN 301 489 1 2008 and ETSI EN 301 489 17 2008 Radiated Emissions Electro Static Discharge Radiated RF Susceptibility The modules are fully compliant with Radiated Emissions EN 55022 Electrostatic Discharge EN 61000 4 2 Radiated Immunity EN 61000 4 3 EN 60950 1 CE Mark RoHS ETSI does not provide a modular approval similar to the USA FCC and Canada IC However the testing completed above can be used as part of the customer s application for certification The test report data can be included in their test plan and can significantly the lower customer s certification burden A helpful document that can be used as a starting point in understanding the use of Short Range Devices SRD in Europe is the European Radio Communica tions Committee ERC Recommendation 70 03 downloadable from the European Radio Communications Office ERO http www ero dk The end user is responsible for ensuring compliance with harmonize
7. puts the module into Hiber nate When in Hibernate the module only consumes leakage current but does not maintain state Hibernate has to be fully controlled by the PIC MCU and requires the TCP IP stack to restart on an awake This state pro vides the best battery life for embedded products Note that entering Hibernate for intervals of less than 30 sec onds is not likely to save power Battery life expectation can be more than a year for devices operating on AA cells that would be in Hibernate except to wake up every hour for a small data transfer 500 Bytes 2 32 SLEEP STATE The Sleep state is a low power dynamic state that auto matically implements the 802 11 Power Save feature In this mode if enabled the module will enter power save mode when all activity is complete The module will wake autonomously to any PIC inter vention so it can check DTIM beacons from the Access Point If any traffic is listed as queued for the module then it will awaken and get the data from the Access Point on the next possible opportunity When data is acquired the module will interrupt the PIC microcon troller on a normal data available indication If no data is available on a DTIM check the module reenters the Power Save state until the next DTIM The DTIM inter val is programmed at the Access Point This state can provide as if on behavior of the radio with a significant power savings versus always on The battery life expectati
8. that the MRF24WBOMA and MRF24WBOMB modules have passed rigor ous testing for interoperability across existing consumer and business Wi Fi equipments and their certifications are completed WFA ID WFAT7 150 The certification effort undertaken will save customers time and money For modular policy please refer to WFA Module Policy Ver sion 2 2 MARCH 2006 DS70632A page 24 Preliminary 2010 Microchip Technology Inc MRF24WBOMA MRF24WBOMB 40 ELECTRICAL CHARACTERISTICS TABLE 4 1 DIGITAL ELECTRICAL CHARACTERISTICS NOMINAL CONDITIONS 25C VDD 3 3V Parameters Min Typ Max Units VIL Input low voltage 0 3 0 8 V ViH Input high voltage 2 5 5 V VOL Output low voltage 0 4 V VOH Output high voltage 24 V loL Output low level current at VOL Max 8 5 mA Output high level current at VOH Min 15 4 mA TABLE 4 2 ABSOLUTE MAXIMUM RATINGS Parameters Min Max Notes Storage Temperature 40C 125C VDD OV 4 2 for 0 5mSec VDD above this level and duration will disable Radio VIN on SDI CS SCK 0 3V 5 5V Note 1 Listed Absolute Maximum Ratings are not meant for functional operation Operation at these levels is not guaranteed and may reduce the operating life of the component TABLE 4 3 RECOMMENDED OPERATING CONDITIONS Parameters Min Typ Max Units Ambient Temperature 0 70 Degrees Celsius for FCC and IC 2
9. to com ply with the limits for a Class B digital device pur suant 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 communica tions However there is no guarantee that interfer ence will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be deter mined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more 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 Contains Transmitter Module FCC ID W70OZG2100 ZG2101 or Contains FCC ID W7OZG2100 ZG2101 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 2010 Microchip Techno
10. 24WBOMA MRF24WBOMB supports JTAG boundary scan The JTAG port provides the optional hardware JTAG Reset input JTAGRsT EN and JTAGRST need to be driven high to enable JTAG mode JTAG should not be enabled during normal functional operation This func tion affects power state current 2 5 Debug Serial Interface The MRF24WBOMA MRF24WBOMB incorporates a Transmitted Data pin DEBUGTX and a Received Data DEBUGrRx for serial debugging purposes These pins can be connected to commercially available RS 232 line drivers receivers with appropriate external level shifters The serial interface is fully tested at 115200 bits seconds with RS 232 UART interface applications 2010 Microchip Technology Inc DS70632A page 15 MRF24WBOMA MRF24WBOMB 2 6 SPI Interface The slave Serial Peripheral Interface SPI is used to interface with the host PIC microcontroller The slave SPI interface works with the Interrupt line INT When data is available for the PIC microcontroller during operation the INT line is asserted low by the MRF24WBOMA MRF24WBOMB module The INT line is de asserted high by the MRF24WBOMA MRF24WBOMB after the data is transferred to the host PIC microcontroller The SPI SCK speed can be up to 25 MHz The slave SPI interface implements the CPOL 0 CPHA 0 and CPOL 0 CPHA 1 modes 0 and 3 of operation That is data is clocked in on the first rising edge of the clock after Chip Select CS is as
11. 66 Fax 81 45 471 6122 Korea Daegu Tel 82 53 744 4301 Fax 82 53 744 4302 Korea Seoul Tel 82 2 554 7200 Fax 82 2 558 5932 or 82 2 558 5934 Malaysia Kuala Lumpur Tel 60 3 6201 9857 Fax 60 3 6201 9859 Malaysia Penang Tel 60 4 227 8870 Fax 60 4 227 4068 Philippines Manila Tel 63 2 634 9065 Fax 63 2 634 9069 Singapore Tel 65 6334 8870 Fax 65 6334 8850 Taiwan Hsin Chu Tel 886 3 6578 300 Fax 886 3 6578 370 Taiwan Kaohsiung Tel 886 7 536 4818 Fax 886 7 536 4803 Taiwan Taipei Tel 886 2 2500 6610 Fax 886 2 2508 0102 Thailand Bangkok Tel 66 2 694 1351 Fax 66 2 694 1350 EUROPE Austria Wels Tel 43 7242 2244 39 Fax 43 7242 2244 393 Denmark Copenhagen Tel 45 4450 2828 Fax 45 4485 2829 France Paris Tel 33 1 69 53 63 20 Fax 33 1 69 30 90 79 Germany Munich Tel 49 89 627 144 0 Fax 49 89 627 144 44 Italy Milan Tel 39 0331 742611 Fax 39 0331 466781 Netherlands Drunen Tel 31 416 690399 Fax 31 416 690340 Spain Madrid Tel 34 91 708 08 90 Fax 34 91 708 08 91 UK Wokingham Tel 44 118 921 5869 Fax 44 118 921 5820 01 05 10 Preliminary DS70632A page 34 2010 Microchip Technology Inc
12. 70 3 3 3 6302 Volts VDD for ETSI 2 80 3 3 3 6302 Volts VDD for Japan 2 97 3 3 3 632 Volts Note 1 certification testing by customer The module is capable of this operation 2 While 3 63V is the maximum operating voltage the module will detect an overvoltage condition at 4 2V and disable the RF Transmit function in 0 5 ms This is an RF certification behavior pertaining to disabling transmission in unforeseen overvoltage conditions Operation in EU and or Japan over extended voltage range of 2 7V to 3 6V will require additional 2010 Microchip Technology Inc Preliminary DS70632A page 25 MRF24WBOMA MRF24WBOMB TABLE 4 4 CURRENT CONSUMPTION NOMINAL CONDITIONS 25C VDD 3 3V Parameters Min Typ Max Units IDD Hibernate 3 3V 0 1 IDD Sleep software enabled 2500 IDD Standby transitional state 10 mA IDD 2 RX on Receive 83dBm with 2Mbps 85 mA modulated signal at antenna port IDD core TX on 0 dBm 115 mA IDD core TX on 10 dBm 154 mA Note 1 Sleep current is current consumed during periods of standby between DTIM beacons The module will awake 2 mS before a DTIM and turn on its receiver and possibly its transmitter if data is available for it 2 IDD core is current consumed by the part not including the I O consumption of the SPI port
13. APs or clients that are used to validate ASD com pliance from the standard test bed will meet all of the requirements specified in the applicable System Interoperability Test Plans referred to as the standard test plan unless specifically exempted The MRF24WBOMA and MRF24WBOMB modules are in the ASD category The modules are certified under Wi Fi 802 11 with WPA2 WPA and WEP System Interoperability ASD Model Test Plan with Test Engine For IEEE 802 11a b and g Devices Version 1 0 2010 Microchip Technology Inc Preliminary DS70632A page 23 MRF24WBOMA MRF24WBOMB Per the Wi Fi Alliance approved ASD test plan the def inition of the Microchip MRF24WBOMA MRF24WBOMB modular solutions is expressed in the following statements Member Wireless solution is a_ single chip 802 11b module including MAC baseband RF and power amplifier personal STA It utilizes a simple to use API for embedded markets and an OS is not a requirement for operation It supports 1 and 2 Mbps TX and RX It also supports WEP WPA Personal and WPA2 Personal security Ciphers supported are AES and TKIP The Mem ber Wireless solution interfaces with the HOST through SPI Bus Some applications for the Mem ber Wireless solution are as following Sensors Controls such as Industrial amp Factory sensors HVAC amp Lighting Consumer Electronic such as remote controls toys and internet radio This certification ensures
14. ND GND 4 7Ko ae Ce 1 0 uF moi MRF24WBOMA MRF24WBOMB 2 2 Power On Sequence The internal regulators for the digital and analog core power supplies are enabled by driving the HIBERNATE pin high Figure 2 2 shows the waveforms for the core supplies when powering up the MRF24WBOMA MRF24WBONB with a nominal 3 3V applied to VDD FIGURE 2 2 There is an internal Power on Reset POR detect which starts the boot sequence from the internal ROM when the core is powered After approximately 300 ms from when the VDD supply is within specification the MRF24WBOMA MRF24WBONB is ready for operation MRF24WBOMA MRF24WBOMB POWER ON SEQUENCE TIMING Power On Ramp System Dependent MRF24WBOMA Internal Boot Ready for Operation we pem Dd 2 7 lt 5 ms 4 300 ms 8 o Time 2 3 Power States The MRF24WBOMA MRF24WBOMB has several power states These are Hibernate Sleep and Active two sub states as shown in Figure 2 3 The selection of power state directly affects system behavior as well as overall power consumption or battery life There is also a Standby state that is not user controlled 2 3 1 HIBERNATE STATE An Off state is defined as no power applied to the device The Hibernate mode is the closest to controlled off that the module can approach It is controlled via the HIBERNATE pin high input
15. P Ground 20 HIBERNATE Hibernate mode enable high input will disable the module 21 JTAGEN JTAG test enable 22 NC NC Do not connect 23 cs SPI Chip Select input 24 NC NC Do not connect 25 GND P Ground 26 DEBUGRX Serial debug port input see Section 2 0 27 DEBUGTX Serial debug port output see Section 2 0 28 GND P Ground 29 VDD P Power 30 GND P Ground 31 NC NC Do not connect 32 SDO O SPI data out 33 INT Interrupt output open drain requires a pull up 34 SCK SPI clock input 35 SDI SPI data in 36 GND P Ground Legend Pin type abbreviation P Power input Input O Output NC Do Not Connect Note 1 Signals of Type I Constant must either be constantly driven by the host or have a pull up or pull down in case the host is likely to tri state the signal during power down modes The constant drive is used to ensure defined operation of the part and to minimize leakage current during low power modes 2 WP is used as write protect for the internal module SPI Flash For production use this pin should be pulled low For end application this pin can be controlled by the host microcontroller to enable in field Flash updates 2010 Microchip Technology Inc Preliminary DS70632A page 9 MRF24WBOMA MRF24WBOMB 1 2 Mounting Details The MRF24WBOMA MRF24WBOMB is a surface mountable module Module dimensions are shown in Figure 1 3 The module Printed Circuit Board PCB is 1 mm thick with castellated
16. a at the other end of the link Figure 2 4 Figure 2 5 and Figure 2 6 show the simulated radiation patterns expected from the PCB antenna DS70632A page 16 Preliminary 2010 Microchip Technology Inc FIGURE 2 4 MRF24WBOMA MRF24WBOMB 7 nta 111477 SU 42 A Swe XA 5 Y CAN X S 2 HIS lt gt 5 5 MRF24WBOMA MRF24WBOMB SS BERS nS T i o dD 22 7 j LT FTES 180 DS70632A page 18 MRF24WBOMA MRF24WBOMB h 2 2 S N 2 SSE WY 9 1 AS C UIN ZA AN 90 p a 4 Ny N TN 21 7 ji i HT lt MRF24WBOMA MRF24WBOMB 2 8 External Antenna The MRF24WBOMB has been regulatory certified for use with a number of antennas The modular certifica tions hold only if the following antennas or antennas that are materially and functionally equivalent are used All antennas connect to the module via an ultra miniature coaxial U FL or IPEX connector A list of anten
17. ational Single operating voltage 2 7V 3 6V 3 3V typical Temperature Range 0 C to 70 C Commercial Simple four wire SPI interface with interrupt Low current consumption RX mode 85 mA typical TX mode 154 mA 10 dBm typical Sleep 250 typical Hibernate 0 1 pA typical Industrial Controls Chemical Sensors HVAC Security Systems M2M Communication Remote Device Management Location and Asset Tracking RF Analog Features Automotive SM Band 2 400 2 483 5 GHz operation Code Update 14 Channels selectable individually or domain Retail restricted DSSS Modulation Data Rate 1000 kbps 91 dBm Typical sensitivity at 1 Mbps 10 dBm Typical output power with control Integrated low phase noise VCO RF frequency synthesizer PLL loop filter and PA Digital VCO and filter calibration Patient Asset Tracking 2010 Microchip Technology Inc Preliminary DS70632A page 3 POS Terminals Wireless Price Tags Digital Remote Medical Fitness and Healthcare Glucose Meters Fitness Equipment MRF24WBOMA MRF24WBOMB Pin Diagram GND 1 GND NC e SDI JTAG TDO 3 SCK JTAG TCK INT JTAG TMS 3 SDO JTAG TDI 6 NC RESET 7 GND NC 8 VDD RST 9 GND GND 10 DEBUG TX NC 11 DEBUG_RX NC 12 GND NC 13 NC NC 14 CS NC 15 NC WP 16 JTAG EN VDD 17 HIBERNATE GND 18 GND Note Antenna connector on MRF24WBONB only DS70632A page 4
18. d frequencies and labeling require ments for each country in which the end device is marketed and sold 3 3 1 HELPFUL WEB SITES Radio and Telecommunications Terminal Equipment R amp TTE http ec europa eu enterprise rtte index en htm European Conference of Postal and Telecommunications Administrations CEPT http www cept org European Telecommunications Standards Institute ETSI http www etsi org European Radio Communications Office ERO http www ero dk 3 4 Wi Fi Alliance Wi Fi Alliance Certification focuses on interoperability testing of devices based on 802 11 standards Historically when the certification process and pro grams were developed by Wi Fi Alliance members the vast majority of the 802 11 clients were PC centric and certification testing adequately addressed those types of devices In subsequent years the number of Wi Fi devices that are not PC centric has grown significantly These non standard devices as a class of products have been dubbed Application Specific Devices ASDs by the Wi Fi Alliance ASDs are 802 11 devices e g clients or access points APs which cannot be tested under a standard Alliance test plan because they do not comply with the standard test con figuration and or because they are designed to perform a specific application Examples include but are not limited to bar code scanners pagers recording devices monitoring equipment and cable modems The
19. d regulatory approvals for modular devices in the United States FCC Canada IC and Europe ETSI The modular approval removes the need for expensive RF and antenna design and allows the end user to place the modules inside a finished product and not require regulatory testing for an intentional radiator RF transmitter They also have Radio Type Approval Certification for Japan See Section 3 0 Regulatory Approval for the specific requirements that should be adhered to by the integrator 1 1 Interface Description The block diagram in Figure 1 1 represents a MRF24WBOMA MRF24WBOMB module It interfaces to a Microchip PIC18 PIC24 dsPIC33 or PIC32 micro controllers via a four wire serial slave SPI interface interrupt hibernate Reset power and ground signals The module runs on a single supply voltage of nomi nally 3 3v It also supports optional JTAG and serial debug for testability The debug port operates at 3 3v and requires a level shifter for operation with RS 232 devices Figure 1 2 shows a simplified example con nection between a Microchip PIC MCU and the mod ule Table 1 1 lists the pin descriptions Data communications with the MRF24WBOMA MRF24WBOMB are through the SPI interface that is detailed in Section 2 0 Circuit Description The Microchip PIC microcontroller communicates with the module via a command API from within the Microchip TCP IP stack The command API is detailed in the Microchip TCP IP Stac
20. e if FIGURE 4 2 SPI OUTPUT TIMING cs JH EP WA Tv gt Tis 4 i H 50 mbot Y 85 Out X 44 X Don t Care SI LSb In AS TABLE 4 7 SPI INTERFACE AC CHARACTERISTICS Symbol Parameters Min Max Units TSCK SCK Period 40 ns TCSD CS High time 50 nS Tcss CS Setup time 50 nS TCSH CS Hold time 50 nS TSU SDI Setup time 10 ns THD SDI Hold time 10 ns Tv SDO Valid time 15 ns 2010 Microchip Technology Inc Preliminary DS70632A page 27 MRF24WBOMA MRF24WBOMB NOTES 0570632 28 Preliminary 2010 Microchip Technology Inc MRF24WBOMA MRF24WBOMB APPENDIX A REVISION HISTORY Revision A April 2010 Initial release of this document Ram CR P mE c ZJ E E EE O 2010 Microchip Technology Inc Preliminary DS70632A page 29 MRF24WBOMA MRF24WBOMB NOTES m E B H H aR p DS70632A page 30 Preliminary 2010 Microchip Technology Inc MRF24WBOMA MRF24WBOMB THE MICROCHIP WEB SITE Microchip provides online support via our WWW site at www microchip com This web site is used as a means to make files and information easily available to customers Accessible by using your favorite Internet browse
21. efulness 6 15 there any incorrect or misleading information what and where 7 How would you improve this document DS70632A page 32 Preliminary 2010 Microchip Technology Inc MRF24WBOMA MRF24WBOMB PRODUCT IDENTIFICATION SYSTEM To order or obtain information e g on pricing or delivery refer to the factory or the listed sales office PART NO M X T X Examples Device Module Module and Temperature a MRF24WBOMA RM Commercial temp tray Type Reel Range MRF24WBOMB RM Commercial temp tray Device MR24WBOMA MRF24WBOMB VDD range 2 7V to 3 6V Temperature Range C O Cto 70 C Commercial 2010 Microchip Technology Inc Preliminary DS70632A page 33 MICROCHIP WORLDWIDE SALES AND SERVICE AMERICAS Corporate Office 2355 West Chandler Blvd Chandler AZ 85224 6199 Tel 480 792 7200 Fax 480 792 7277 Technical Support http support microchip com Web Address www microchip com Atlanta Duluth GA Tel 678 957 9614 Fax 678 957 1455 Boston Westborough MA Tel 774 760 0087 Fax 774 760 0088 Chicago Itasca IL Tel 630 285 0071 Fax 630 285 0075 Cleveland Independence OH Tel 216 447 0464 Fax 216 447 0643 Dallas Addison TX Tel 972 818 7423 Fax 972 818 2924 Detroit Farmington Hills MI Tel 248 538 2250 Fax 248 538 2260 Kokomo Kokomo IN Tel 765 864 8360 Fax 765 864 8387 Los Angel
22. es Mission Viejo CA Tel 949 462 9523 Fax 949 462 9608 Santa Clara Santa Clara CA Tel 408 961 6444 Fax 408 961 6445 Toronto Mississauga Ontario Canada Tel 905 673 0699 Fax 905 673 6509 ASIA PACIFIC Asia Pacific Office Suites 3707 14 37th Floor Tower 6 The Gateway Harbour City Kowloon Hong Kong Tel 852 2401 1200 Fax 852 2401 3431 Australia Sydney Tel 61 2 9868 6733 Fax 61 2 9868 6755 China Beijing Tel 86 10 8528 2100 Fax 86 10 8528 2104 China Chengdu Tel 86 28 8665 5511 Fax 86 28 8665 7889 China Chongqing Tel 86 23 8980 9588 Fax 86 23 8980 9500 China Hong Kong SAR Tel 852 2401 1200 Fax 852 2401 3431 China Nanjing Tel 86 25 8473 2460 Fax 86 25 8473 2470 China Qingdao Tel 86 532 8502 7355 Fax 86 532 8502 7205 China Shanghai Tel 86 21 5407 5533 Fax 86 21 5407 5066 China Shenyang Tel 86 24 2334 2829 Fax 86 24 2334 2393 China Shenzhen Tel 86 755 8203 2660 Fax 86 755 8203 1760 China Wuhan Tel 86 27 5980 5300 Fax 86 27 5980 5118 China Xian Tel 86 29 8833 7252 Fax 86 29 8833 7256 China Xiamen Tel 86 592 2388138 Fax 86 592 2388130 China Zhuhai Tel 86 756 3210040 Fax 86 756 3210049 ASIA PACIFIC India Bangalore Tel 91 80 3090 4444 Fax 91 80 3090 4123 India New Delhi Tel 91 11 4160 8631 Fax 91 11 4160 8632 India Pune Tel 91 20 2566 1512 Fax 91 20 2566 1513 Japan Yokohama Tel 81 45 471 61
23. have a right to sue for relief under that Act Information contained in this publication regarding device applications and the like is provided only for your convenience and may be superseded by updates It is your responsibility to ensure that your application meets with your specifications MICROCHIP MAKES REPRESENTATIONS OR WARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORY OR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITS CONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSE Microchip disclaims all liability arising from this information and its use Use of Microchip devices in life support and or safety applications is entirely at the buyer s risk and the buyer agrees to defend indemnify and hold harmless Microchip from any and all damages claims Suits or expenses resulting from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectual property rights QUALITY MANAGEMENT SYSTEM CERTIFIED BY DNV ISO TS 16949 2002 Trademarks The Microchip name and logo the Microchip logo dsPIC KEELOQ KEELOQ logo MPLAB PIC PICmicro PICSTART PIC logo rfPIC and UNI O are registered trademarks of Microchip Technology Incorporated in the U S A and other countries FilterLab Hampshire HI TECH C Linear Active Thermistor MXDEV MXLAB SEEVAL and The Embedded Control Solutions Company are registered trademarks of Microch
24. ip Technology Incorporated in the U S A Analog for the Digital Age Application Maestro CodeGuard dsPICDEM dsPICDEM net dsPICworks dsSPEAK ECAN ECONOMONITOR FanSense HI TIDE In Circuit Serial Programming ICSP Mindi MiWi MPASM MPLAB Certified logo MPLIB MPLINK mTouch Octopus Omniscient Code Generation PICC 18 PICDEM PICDEM net PICkit PICtail REAL ICE Select Mode Total Endurance TSHARC UniWinDriver WiperLock and ZENA are trademarks of Microchip Technology Incorporated in the U S A and other countries SQTP is service mark of Microchip Technology Incorporated in the U S A All other trademarks mentioned herein are property of their respective companies 2010 Microchip Technology Incorporated Printed in the U S A All Rights Reserved LI Printed on recycled paper ISBN 978 1 60932 155 0 Microchip received ISO TS 16949 2002 certification for its worldwide headquarters design and wafer fabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in California and India The Company s quality system processes and procedures are for its PIC MCUs and dsPIC DSCs KEELOQ code hopping devices Serial EEPROMs microperipherals nonvolatile memory and analog products In addition Microchip s quality system for the design and manufacture of development systems is ISO 9001 2000 certified DS70632A page 2 Preliminary 2010 Microchip Techno
25. k online help that is included in the free Microchip Application Libraries download MRF24WBOMA MRF24WBOMB BLOCK DIAGRAM MRF24WBOMA 2 4 GHz IEEE Std 802 11b RF Transceiver Module AES TKIP Digital 1 0 Encryption Interface Accelerator Interrupt Power Transceiver JTAG Antenna Matching E ircuitry MRF24WBOMA Amplifier Reset Hibernate 2010 Microchip Technology Inc Preliminary DS70632A page 7 MRF24WBOMA MRF24WBOMB FIGURE 1 2 MICROCONTROLLER TO MRF24WBOMA MRF24WBOMB INTERFACE MRF24WBOMx PIC Microcontroller External Antenna MRF24WBOMB INT 3 3V Typ HIBERNATE GND WP DS70632A page 8 Preliminary 2010 Microchip Technology Inc MRF24WBOMA MRF24WBOMB TABLE 1 1 Pin Description Pin Symbol Type Description 1 GND P Ground 2 NC NC Do not connect 3 JTAGTDO JTAG test data output 4 JTAGTCK I Constant JTAG clock input 5 JTAGTMS JTAG mode input 6 JTAGTDI JTAG test data input 7 RESET I Constant Module Reset input 8 NC NC Do not connect 9 JTAGRST JTAG Reset input optional see Section 2 0 10 GND P Ground 11 NC NC Do not connect 12 NC NC Do not connect 13 NC NC Do not connect 14 NC NC Do not connect 15 NC NC Do not connect 16 wP2 Write protect this pin is used to enable FLASH update 17 VDD P Power 18 GND P Ground 19 GND
26. logy Inc MICROCHIP MRF24WBOMA MRF24WBOMB MRF24WBOMA MRF24WBOMB Data Sheet 2 4 GHz IEEE Std 802 11b Features Integrated RSSI ADC and I Q DACs RSSI readings available to host Balanced receiver and transmitter characteristics IEEE Std 802 11 compliant RF Transceiver Serialized unique MAC address for low power consumption Data Rate 1 and 2 Mbps EEE Std 802 11b g n compatible MAC Baseband Features Small size 21mm x 31mm 36 pin Surface Mount Hardware CSMA CA access control automatic ACK and FCS creation and checking Automatic MAC packet retransmit Hardware Security Engine for AES and RC4 based ciphers Supports 802 1x 802 1i security WEP Module Integrated PCB antenna MRF24WBOMA External antenna option MRF24WBOMB with ultra miniature coaxial U FL connector Range up to 400m 1300 ft Easy integration into final product accelerates WPA PSK and WPA 2 PSK product development provides quicker time to maa Applications Radio regulation certification for United States PP FCC Canada IC Europe ETSI and Japan Utility and Smart Energy ARIB Thermostats Wi Fi certified WFA ID WFA7150 Smart Meters Designed for use with Microchip microcontroller White Goods families PIC18 PIC24 dsPIC33 and PIC32 with HVAC downloadable Microchip TCP IP Stack Consumer Electronics Remote Control nternet Radio Home Security Toys Oper
27. logy Inc Preliminary DS70632A page 21 MRF24WBOMA MRF24WBOMB 3 1 1 RF EXPOSURE All transmitters regulated by FCC must comply with RF exposure requirements OET Bulletin 65 Evaluating Compliance with FCC Guidelines for Human Exposure to Radio Frequency Electromagnetic Fields provides assistance in determining whether proposed or existing transmitting facilities operations or devices comply with limits for human exposure to Radio Frequency RF fields adopted by the Federal Communications Commission FCC The bulletin offers guidelines and suggestions for evaluating compliance If appropriate compliance with exposure guidelines for mobile and unlicensed devices can be accomplished by the use of warning labels and by providing users with information concerning minimum separation dis tances from transmitting structures and proper installation of antennas The following statement must be included as a CAUTION statement in manuals and OEM products to alert users of FCC RF exposure compliance To satisfy FCC RF Exposure requirements for mobile and base station transmission devices a separation distance of 20 cm or more should be maintained between the antenna of this device and persons during operation To ensure compliance operation at closer than this distance is not recom mended The antenna s used for this transmitter must not be co located or operating in conjunction with any other antenna or transmitter
28. mounting points on two sides FIGURE 1 3 MRF24WBOMA MRF24WBOMB MODULE PHYSICAL DIMENSIONS 21 0mm 4 d e1 65mm Note Antenna connector on MRF24WBONB only 86 18 6mm y 1 comm 3 70mm DS70632A page 10 Preliminary 2010 Microchip Technology Inc MRF24WBOMA MRF24WBOMB Figure 1 4 shows the recommended host PCB footprint For best performance mount the module on the edge for the module of the host PCB with the antenna pattern facing The MRF24WBOMA has an integrated PCB antenna outward For best performance follow the mounting details shown in Figure 1 4 FIGURE 1 4 RECOMMENDED PCB FOOTPRINT 2 1 0mm 1 73 3mm m m 1 36 m m m m m m m ER m Y 1 27 m m m m 31 0mm m m m m m m m m m Y 19 m 0 80mm LUE 7 68mm 0 85mm 19 5mm 0 65mm 6 60mm Note 1 8 65mm EET d Note 1 The Note 1 demarcation specifies the Host PCB copper keep out area O 2010 Microchip Technology Inc Preliminary DS70632A page 11 MRF24WBOMA MRF24WBOMB Figure 1 5 illustrates the module reflow profile that is recommended for mounting the device onto the host PCB FIGURE 1 5 RECOMMENDED MODULE REFLOW PROFILE AND SETPOINTS Zones 1 1 13 14 1 5 16 1 718 300 250 200 150 Temperature C 100
29. nas for use with the module is provided in Table 2 2 TABLE 2 2 LIST OF CERTIFIED EXTERNAL ANTENNAS Part Number Type Gain dBi n Connector Vendor RFA 02 P05 PCB 2 2 0 IPEX Aristotle RFA 02 L6H1 70 35 Dipole 2 2 0 IPEX Aristotle RFA 02 D3 Dipole 1 5 2 0 IPEX Aristotle RFA 02 L2H1 Dipole 2 2 0 IPEX Aristotle RFA 02 3 C5H1 Dipole 3 2 0 IPEX Aristotle RFA 02 5 C7H1 Dipole 5 2 0 IPEX Aristotle RFA 02 5 F7H1 Dipole 5 2 0 IPEX Aristotle WF2400 15001A Dipole 5 2 0 IPEX Saytec WF2400 15001AR Dipole 5 2 0 RF IPEX Saytec WF2400 100011 Dipole 2 2 0 IPEX Saytec WF2400 10001R Dipole 2 2 0 RF IPEX Saytec AN2400 5901RS used with connector Omni 9 2 0 IPEX Saytec SMASFR8 3152H 00X00I AN2400 5901RS used with connector Omni 9 2 0 RF IPEX Saytec SMASFR8 3152H 00X00IR DS70632A page 20 Preliminary 2010 Microchip Technology Inc MRF24WBOMA MRF24WBOMB 3 0 REGULATORY APPROVAL MRF24WBOMA MRF24WBOMB module has received regulatory approvals for modular devices in the United States Canada and European countries Modular approval allows the end user to place the MRF24WBOMA MRF24WBOMB module inside a fin ished product and not require regulatory testing for an intentional radiator RF transmitter provided no changes or modifications are made to the module cir cuitry Changes or modifications could void the user s authority to operate the equipment The end user must compl
30. on of this mode is several days to several weeks This mode is characterized by a very low latency as low as 200 mS to transfer data from the low power state 2 3 3 ACTIVE STATE The Active state is identified as one of two states where the radio circuitry is fully on There is the Receive state RX ON and the Transmit state TX ON DS70632A page 14 Preliminary 2010 Microchip Technology Inc MRF24WBOMA MRF24WBOMB 2 3 4 STANDBY STATE The Standby state is not user controlled but is noted as it helps identify and track certain operations of the module during power tracing TABLE 2 1 MRF24WBOMA MRF24WBOMB POWER STATE DEFINITIONS State VDD cs Description Off OV OV Power is completely disconnected Hibernate 3 3V 3 3V All internal power regulators are OFF enabled by HIBERNATE pin Sleep 3 3V OV Enabled by TCPIP driver RX ON 3 3V OV Receive circuits are on and receiving TX ON 3 3V OV Transmit circuits are on and transmitting Standby 3 3V OV State machine transition state only not user controlled FIGURE 2 3 MRF24WBOMA MRF24WBOMB POWER STATE DIAGRAM Hibernate Note 1 See Section 2 2 2 4 JTAG Interface Joint Test Action Group JTAG is the common name used for the IEEE 1149 1 standard entitled Standard Test Access Port and Boundary Scan Architecture for test access ports that are used for testing printed circuit boards using boundary scan The MRF
31. original description of one or more separately certified modules it contains were not followed From Section 5 2 RSS Gen Issue 2 June 2007 Equipment Labels All Category radio equipment intended for use in Canada shall permanently display on each transmitter receiver or inseparable combination thereof the applicant s name i e manufacturer s name trade name or brand name model num ber and certification number This information shall be affixed in such a manner as to not be removable except by destruction or defacement The size of the lettering shall be legible without the aid of magnification but is not required to be larger than 8 point font size If the device is too small to meet this condition the information can be included in the user manual upon agreement with Industry Canada The label is shown in the following example Contains IC 8248A G21ZEROG DS70632A page 22 Preliminary 2010 Microchip Technology Inc MRF24WBOMA MRF24WBOMB From Section 7 1 6 RSS Gen Issue 2 June 2007 Digital Circuits If the device contains digital circuitry that is not directly associated with the radio transmitter the device shall also have to comply with ICES 003 Class A or B as appropriate except for ICES 003 labeling requirements The test data obtained for the ICES 003 tests shall be kept by the manufac turer or importer whose name appears on the equipment label
32. p to date version of this data sheet please register at our Worldwide Web site at http www microchip com You can determine the version of a data sheet by examining its literature number found on the bottom outside corner of any page The last character of the literature number is the version number e g DS30000A is version A of document DS30000 Errata An errata sheet describing minor operational differences from the data sheet and recommended workarounds may exist for current devices As device documentation issues become known to us we will publish an errata sheet The errata will specify the revision of silicon and revision of document to which it applies To determine if an errata sheet exists for a particular device please check with one of the following e Microchip s Worldwide Web site http www microchip com Your local Microchip sales office see last page When contacting a sales office please specify which device revision of silicon and data sheet include literature number you are using Customer Notification System Register on our web site at www microchip com to receive the most current information on all of our products O 2010 Microchip Technology Inc Preliminary DS70632A page 5 MRF24WBOMA MRF24WBOMB NOTES 0570632 6 Preliminary 2010 Microchip Technology Inc MRF24WBOMA MRF24WBOMB 1 0 DEVICES OVERVIEW The MRF24WBOMA and MRF24WBOMB are low power 2 4 GH
33. r the web site contains the following information Product Support Data sheets and errata appli cation notes and sample programs design resources user s guides and hardware support documents latest software releases and archived software General Technical Support Frequently Asked Questions FAQ technical support requests online discussion groups Microchip consultant program member listing Business of Microchip Product selector and ordering guides latest Microchip press releases listing of seminars and events listings of Micro chip sales offices distributors and factory repre sentatives CUSTOMER CHANGE NOTIFICATION SERVICE Microchip s customer notification service helps keep customers current on Microchip products Subscribers will receive e mail notification whenever there are changes updates revisions or errata related to a spec ified product family or development tool of interest To register access the Microchip web site at http www microchip com click on Customer Change Notification and follow the registration instructions CUSTOMER SUPPORT Users of Microchip products can receive assistance through several channels Distributor or Representative Local Sales Office Field Application Engineer FAE Technical Support Customers should contact their distributor representa tive or field application engineer FAE for support Local sales offices are also available to help cu
34. serted Data is placed on the bus with most significant bit MSb first and least significant bit LSb last Figure 4 1 in Section 4 0 Electrical Characteris tics shows the SPI timing diagram Table 4 7 details the SPI timing AC characteristics 2 7 PCB Antenna The PCB antenna is fabricated on the top copper layer and covered in solder mask The layers below the antenna have no copper trace It is recommended that the module be mounted on the edge of the host PCB It is permitted for PCB material to be below the antenna structure of the module as long as no copper traces or planes are on the host PCB in that area For best performance place the module on the host PCB according to the details shown in Figure 1 4 The antenna patterns shown in the following plots des ignated as Figure 2 4 Figure 2 5 and Figure 2 6 refer to three separate axis of measurement that correspond to the orientation of the module drawn in the center of each plot The horizontal and vertical data blue and red respec tively in each plot correspond to the orientation polar ization of the measurement antenna rotated 360 degrees around the module The horizontal measurement was done with the receive antenna parallel with the module PCB The vertical measurement was done perpendicular to the module PCB These patterns allow the designer to understand the performance of the module with respect to the position of the receive transmit antenn
35. stom ers A listing of sales offices and locations is included in the back of this document Technical support is available through the web site at http support microchip com 2010 Microchip Technology Inc Preliminary DS70632A page 31 MRF24WBOMA MRF24WBOMB READER RESPONSE It is our intention to provide you with the best documentation possible to ensure successful use of your Microchip prod uct If you wish to provide your comments on organization clarity subject matter and ways in which our documentation can better serve you please FAX your comments to the Technical Publications Manager at 480 792 4150 Please list the following information and use this outline to provide us with your comments about this document To Technical Publications Manager Total Pages Sent RE Reader Response From Name Company Address City State ZIP Country Telephone FAX 5 Application optional Would you like reply N Device MRF24WBOMA Literature Number DS70632A Questions 1 What are the best features of this document 2 How does this document meet your hardware and software development needs 3 Do you find the organization of this document easy to follow If not why 4 What additions to the document do you think would enhance the structure and subject 5 What deletions from the document could be made without affecting the overall us
36. y with all of the instructions provided by the Grantee which indicate installation and or operating conditions necessary for compliance The integrator may still be responsible for testing the end product for any additional compliance require ments that become necessary with this module installed for example digital device emission PC peripheral requirements etc in the specific country that the end device will be marketed Refer to the specific country radio regulations for details on regulatory compliance 3 1 United States The MRF24WBOMA MRF24WBOMB has received Federal Communications Commission FCC CFR47 Telecommunications Part 15 Subpart C Intentional Radiators 15 247 and modular approval in accordance with FCC Public Notice DA 00 1407 Released June 26 2000 Part 15 Unlicensed Modular Transmitter Approval The MRF24WBOMA MRF24WBOMB module can be integrated into a finished product without obtain ing subsequent and separate FCC approvals The MRF24WBOMA MRF24WBOMB module has been labeled with its own FCC ID number and if the FCC ID is not visible when the module is installed inside another device then the outside of the finished product into which the module is installed must also display a label referring to the enclosed module The following examples present terminology that could be used A user s manual for the product should include the following statement This equipment has been tested and found
37. z IEEE Std 802 11 compliant surface mount modules with all associated RF components crystal oscillator bypass and bias passives with inte grated MAC baseband RF and power amplifier and built in hardware support for AES and TKIP WEP WPA WPA2 security The integrated module design frees the designer from RF and antenna design tasks and regulatory compliance testing ultimately providing quicker time to market The MRF24WBOMA module is approved for use with the integrated PCB meander antenna The MRF24WBOMB comes with an ultra miniature coaxial connector U FL and is approved for use with a list of pre certified antennas See Section 2 8 External Antenna for specific recommendations The MRF24WBOMA MRF24WBOMB modules are designed to be used with Microchip s TCP IP software stack The software stack has an integrated driver that implements the API that is used in the modules for command and control and for management and data packet traffic The Microchip TCP IP software stack is available in the free Microchip Application Libraries download includ ing example applications and source code from the Microchip web site http www microchip com wireless The combination of the module and a PIC running the TCP IP stack results in support for IEEE Standard 802 11 and IP services This allows for example the immediate implementation of a wireless web server FIGURE 1 1 The MRF24WBOMA MRF24WBOMB modules have receive
Download Pdf Manuals
Related Search