TRF79x0ATB NFC/HF RFID Reader Module
Contents
1. 325 00E 00 4 6 8 10 12 14 16 18 20 Q Value Figure 12 Theoretical Parallel Resistor Value for Desired Q Theoretical Capacitance Values for Resonance at Desired Q 102 00E 12 97 00E 12 m 092 00E 12 82 00E 1 Q 082 00E 12 e Cpar i gt 062 00E 12 O 51 00E 12 052 00E 12 042 00E 12 4 6 8 10 12 14 16 18 20 Q Figure 13 Theoretical Capacitance Values for Resonance at Desired Q Actual measurements on TRF79x0ATB module for high and lower Q value tuning solutions SLOU372A June 2013 Revised June 2014 TRF79x0ATB NFC HF RFID Reader Module 17 Submit Documentation Feedback Copyright 2013 2014 Texas Instruments Incorporated I TEXAS INSTRUMENTS Antenna Tuning Details www ti com Pim S11 Smith R j0 Scale 1 000U F1 Pid 511 SWR 1 000 Ref 1 000 F1 11 00 1 13 47960000 MHz 47 184 516 63 m2 6 0999 1 13 47960000 MHz 2 13 15800000 MHz 37 7021 28 340 2 426 81 pF 2 13 15800000 MHz gt 3 13 84020000 MHz 62 lt 128 38 397 Q 441 55 nH F gt 3 13 84020000 MHz K ot a NAR zi Center 13 56 MHz Span 10 MHz fr2. __ SLOU372A June 2013 Revised June 2014 Submit Documentation Feedback Copyright 2013 2014 Texas Instruments Incorporated I TEXAS INSTRUMENTS www ti com List of Figures 1 TRF 960ATB Eval ation MOdUlG esate ates cence cc eccn su eceaescund aaa ia aaa F 2 TRF7970ATB Evaluation Mod le srreisrirriccdirerrrssnsni irer sinnn AAEE ECEAT EENAA 6 3 TRF79xX0ATB Module Schematic xiiaccacssuaewesscsavapeswanninaws sansa enseaacaseebeseeanaeeesanreeresavaawed eeauaeas 8 4 MSP EXP430F5438 Development Board sccicdccceewencaawervewexaneawsaiysvuereeninutewseueninduewceneueotamenswuaws 9 5 Debug Header RF3 Logic Analyzer Connections for Monitoring SPI Communications Between MSP430F5438A and TRF79x0A on TRF79X0ATB Module ccccceeeee eee cee ene eeeeeeenneeeeeeeeneneeenonees 10 6 Firmware Development and Debug Setup for MSP EXP430F5438 Experimenters Board ceeeeeeeees 10 7 MSP EXP430F5529 Dev lopment BOAO weeneconudentundwenntaannerenweueudiiw EEA RARAN ARUNA KARENA EEE ERR ENA 11 8 MSP EXP430F5539 RF EVM Header Pinouts RF1 and RF2 asasasnsnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn 11 9 Debug Header J12 Logic Analyzer Connections for Monitoring SPI Communications Between MSP430F5529 and TRF79x0A on TRF79x0ATB Module sasanannnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnrnnnnnnnennne 12 10 EK LM4F232 Development Platform EM header locations on DaCkSide csecceeeeeeeeeeeneeeeeeeesenenees 12 11 DK LM3S9B96 EM2 TRF7960R Developm
3. board or pins on header J12 see Figure 9 TRF79 xOATB 5 sA ET g iss SEn l re Bee Bee IC mi module as Bo aes ee is connects here nena eS ae y e a E a ACCEL pees ii ae is aeei 1 INSTRUMENTS ate OAO Figure 7 MSP EXP430F5529 Development Board Firmware Download Debug Header RF EVM Headers GND Figure 8 MSP EXP430F5539 RF EVM Header Pinouts RF1 and RF2 SLOU372A June 2013 Revised June 2014 TRF79x0ATB NFC HF RFID Reader Module 11 Submit Documentation Feedback Copyright 2013 2014 Texas Instruments Incorporated J TEXAS INSTRUMENTS LM4F232 Evaluation Kit EK LM4F232 www ti com RF Pin Headers P3 0 GND Figure 9 Debug Header J12 Logic Analyzer Connections for Monitoring SPI Communications Between MSP430F5529 and TRF79x0A on TRF79x0ATB Module 5 LM4F232 Evaluation Kit EK LM4F232 The Tiva C Series LM4F232 USB CAN Development Kit is a compact and versatile evaluation platform for the Tiva C series TM4C123GH6PGE ARM Cortex M4F based microcontroller The evaluation kit design highlights the TM4C123GH6PGE microcontroller integrated USB 2 0 On the Go Host Device interface CAN analog and low power capabilities The evaluation kit features the TM4C123GH6PGE microcontroller in a 144 LQFP package a color OLED display USB OTG connector a microSD card slot a coin cell battery for use with the Tiva C Series low power Hibernate mode a tem
4. not cover the in depth details of the TRF79x0A NFC RFID IC families as those details are well documented in the data sheets for those parts along with application reports that can be found on the product pages see Section 12 FCC IC Regulatory Compliance e FCC FEDERAL COMMUNICATIONS COMMISSION Part 15 Class A Compliant e IC INDUSTRY CANADA Class A Compliant Tiva j Kot Stellaris RETAKON ARM registred Readendvicdotelexas Instruments SLOU372A June 2013 Revised June 2014 Cortex is a trademark of ARM Limited Submit Documentation Feedback ARM is a registered trademark of ARM LimiteGoPyright 2013 2014 Texas Instruments Incorporated All other trademarks are the property of their respective owners la TEXAS INSTRUMENTS www ti com TRF79x0ATB Module Descriptions 1 TRF79x0ATB Module Descriptions The TRF79x0ATB evaluation modules are intended to allow the software application developer to get familiar with the functionalities of either of the TRF79x0A Multi Standard Fully Integrated 13 56 MHz NFC RFID reader ICs with the freedom to develop on their Texas Instruments Embedded microcontroller development platform of choice The TRF79x0ATB module is also intended to allow customer driven antenna tuning with onboard coil and customer driven antenna form factor design The module is hard wired for SPI communications supports Slave Select and TRF79x0A Direct Mode 2 default Direct Mode 1 and Direct Mode 0 operations The
5. 2014 Texas Instruments Incorporated I TEXAS INSTRUMENTS References www ti com 12 20 References TRF7960A Product Page http www ti com product trf7960A TRF7970A Product Page http www ti com product trf7970A TPS61222 Product Page http www ti com product tps61222 TRF7960ATB Schematic BOM and Design files http www ti com lit zip sloc221 TRF7970ATB Schematic BOM and Design files http www ti com lit zip tidc356 LM4F232 Evaluation Kit http Awww ti com tool ek lm4f232 TPS61220 TPS61221 TPS61222 Low Input Voltage Step Up Converter in 6 Pin SC 70 Package Data Sheet SLVS776 MSP430F543x MSP430F541x Mixed Signal Microcontroller Data Sheet SLAS612 TRF7960A Multi Protocol Fully Integrated 13 56 MHz RFID Reader Writer IC Data Manual SLOS732 TRF7970A Multi Protocol Fully Integrated 13 56 MHz RFID Near Field Communication NFC Transceiver IC Data Manual SLOS743 MSP EXP430F5529 Experimenter Board User s Guide SLAU330 MSP EXP430F5438 Experimenter Board User s Guide SLAU263 Stellaris LM3S9B96 Development kit User s Manual SPMA036 TI 1S015693 ISO18000 3 Inlays Tags Parametric Search http www ti com Isds ti wireless_connectivity nfc_rfid products page o 7 Transponders Inlays and Dies Samtec Header and Mate Information SFM hitos www samtec com technical specifications Default aspx seriesMaster SFM TFM https Awww samtec com technical specifications Default aspx seriesMaster TFM Smith Chart Sim
6. Pit S11 Smith R j30 Piney 511 11 00 1 13 56000000 MHz 162 2 12 99720000 MHz 38 65671 14 33 MA 14 404 5 29 325 Q 417 58 pF gt 3 14 20200000 MHz 262 36 239 Q 406 11 nH aot _ ca At i Center 13 56 MHz IFBW 70 kHz Span 10 MHz i T Center 13 56 MHz IFBW 70 kHz Span 10 MHz a Lower Q Antenna Measurement Plots with Calculated Values Q 10 18 TRF79x0ATB NFC HF RFID Reader Module SLOU372A June 2013 Revised June 2014 Submit Documentation Feedback Copyright 2013 2014 Texas Instruments Incorporated ld TEXAS INSTRUMENTS www ti com TRF79x0ATB Module Read Ranges 11 TRF79x0ATB Module Read Ranges 15015693 Transponder Read Ranges with TRF79x0ATB 12 10 Higher Q Read Range cm E Lower Q Read Range cm Rl 116 11_4 1x RI HDT DVBx RIl l1 7 11 04 xx Ri l03 LinA xe RIi I11 11xA B xx Rl 115 1128 03 Rl l02 1104 B xx 24 2mm 22mm 32 5mm 28mmx22 5mm 45mm x 45mm 65mmx45mm 76mm x 45mm 15014443A Transponder Read Ranges with TRF79x0ATB Higher Q Read Range cm g Lower 0 Read Range cm 20mm 27mm 30mm 76mm x 45mm 15014443B Transponder Read Ranges with TRF79x0ATB Higher O Read Range cm a Lower Q Read Range cm 15mm Z22mmx30mm 38mmx22 5mm 51immx32mm 76mm x 35mm 76mm 45mm SLOU372A June 2013 Revised June 2014 TRF79x0ATB NFC HF RFID Reader Module 19 Submit Documentation Feedback Copyright 2013
7. TRF79x0ATB NFC HF RFID Reader Module User s Guide vis TEXAS INSTRUMENTS Literature Number SLOU372A June 2013 Revised June 2014 I TEXAS INSTRUMENTS Contents 1 TRF79xOATB Module Descriptions cccccccee cece eee e een ene eens eens ena e nae naneeaees 5 2 TRF79x0ATB Connections and Technical Detaills cccccccece eee eeeeeeeeeeeaeeaeeeeeeaeeaneaneeneeas 6 3 TRF79xOATB Module Schematic ccccccccecceeseeeeeeeeeeaeeeaseeaeeeaeesaeeeeeeaeeeasesaeegaeegnenasenanes 8 4 MSP EXP430F5529 Experimenters Board cccccceece eects eee ee eens seas esas eeeeeseeeaeenaeeneeteeenanenags 11 5 LM4F232 Evaluation Kit EK LM4F232 cccccccecceceeceececeeseeeeeeeeeeaeeaseaeeaeeseeseeseaseanegneanes 12 6 DK LM3S9B96 EM2 TRF7960R ARM Cortex M 3 Development Board ccceceeeeeeeeeeeeees 13 7 QUICK STANT iceride e ERA EREATARA RNAi 14 8 Base Application Firmware vxsccccenrescduccszncesnscedaceoncebatceaswscencocaisasdvenanesoisssinatennieinisexesansceuseseser 14 9 Mechanical and Physical Information nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnrnnnsrnrrnnnnnnnnnnnnnnnnnnnnnennnnne 15 10 Antenna Tuning Details nee anaiai a a ada aiaa ee re re rere 15 11 TRF79x0ATB Module Read Ranges nnnnnnsnnnnnnnnnnnnnnnnrnnrrnnnrnnrrrnrrnrrnrrnnnnnnnnnnnnnnnnnnnnnnnnnne 19 12 RT NCS asic E E EEE A E E E E 20 ReVision MISTO ee a a E ee ete see 21 2 Table of Contens
8. TSEL P t g7 RX IN2 o Q ANTI Figure 2 TRF7970ATB Evaluation Module TRF79x0ATB Connections and Technical Details 1 GND Ground 2 N C 3 MOD Direct mode external modulation input 4 N C 5 N C 6 N C 7 IRQ Interrupt request from TRF79x0A to MCU 8 N C 9 SYS_CLK Clock for MCU optional If EN 0 and EN2 1 then system clock is set to 60 kHz 10 EN Chip enable input If EN 0 then chip is in power down mode 11 N C 12 EN2 Pulse enable and selection of power down mode If EN2 is connected to VIN then VDD_X is active during power down to support the MCU Pin can also be used for pulse wake up from power down mode 13 N C Slave Select 1 O_4 Active Low Data Clock Input for MCU Communication from MCU 17 N C O_7 Master Out Slave In Data In from MCU 20 MISO I O_6 Master In Slave Out Data Out from TRF7960 TRF79x0ATB NFC HF RFID Reader Module Table 1 Connector P1 RF1 SLOU372A June 2013 Revised June 2014 Submit Documentation Feedback Copyright 2013 2014 Texas Instruments Incorporated l TEXAS INSTRUMENTS www ti com TRF79x0ATB Connections and Technical Details Table 2 Connector P2 RF2 1 N C 2 N C 3 N C 4 N C 5 N C 6 N C 7 3 3VDC IN VDC in to TPS61222DCKT for generation of 5 VDC 8 N C VDC in to TPS61222DCKT for generation of 5 VDC 10 N C 11 N C 12 N C 15 N C 16 N C Direct mode selection between ASK and OOK modulation 0 ASK 1 OOK Also can be configu
9. acitor values to be 97pF and 51pF respectively This is lt 2 change from the calculated total cap value Schematic fa a l I eto BUI doh i iia j1 O ay Tea TAS Oo Be Te TPI poan 232 a RG Lis TF a ga thie af iA FA Rw Fettum Lida RETI Wow TE a bm r fin eas fa Y pSti TEPER ar En frm Freq fasume a ie Smith Chart simulation for Rpar value 680 Q standard value reveals theoretical parallel and series capacitor values to be 82 pF and 69 pF respectively This is lt 4 change from the calculated value i ie C i Q Cr 1 apr R S CHA C28 680 ra2pF p 2PF i DNI 0 950uH TRF79x0ATB NFC HF RFID Reader Module SLOU372A June 2013 Revised June 2014 Submit Documentation Feedback Copyright 2013 2014 Texas Instruments Incorporated la TEXAS INSTRUMENTS www ti com Antenna Tuning Details The calculations and simulations for a desired Q range of 5 to 20 results in Figure 12 and Figure 13 that indicate the required resistor and capacitance values should be populated Theoretical Parallel Resistor Value for Desired Q 001 53E 03 001 33E 03 30E 03 2 001 13E 03 c Rpar O 925 00E 00 725 00E 00 525 00E 00
10. ck upgrades to newer devices or quick applications changes It is also compatible with many TI low power RF wireless evaluation modules such as the CC2520EMK and the TRF79x0ATB module discussed in this document The Experimenter Board helps designers quickly learn and develop using the new F5xx MCUs which provide the industry s lowest active power consumption more memory and leading integration for applications such as energy harvesting wireless sensing and automatic metering infrastructure AMI A TI Flash Emulation Tool like the MSP FET430UIF is required to program and debug the MSP430 devices on the experimenter board Rf3 Debug GE MN E aa Oa Header Beceter is OPS EI OR a ti g bpbbattss SREP REARS TRE79x0ATB ola PFS mo d u le 5 j 3 aeree connects here a i E 8S 8S eB eaeaae a Ee sete eee tee 8 fra ga ers E ITI aS Ae ip A SO 7 foie 3 nT ij Pe 3 a W INSTRUMENTS _ P s z g i a E m s 2 i z z 2 R z 5 a 4 5 x Figure 4 MSP EXP430F5438 Development Board SLOU372A June 2013 Revised June 2014 TRF79x0ATB NFC HF RFID Reader Module 9 Submit Documentation Feedback Copyright 2013 2014 Texas Instruments Incorporated I TEXAS INSTRUMENTS TRF79x0ATB Module Schematic www ti com seengeneee IRQ Vy as MISO DATA_CLK SLAVE SELECT MOSI Fi RF2 Connectian for TI Chipcon RFID EMs F3 RF4 Connectian for e2 RF EMs Debug Figure 5 Debug Header RF3 Logic Analyzer Con
11. d Peripherals Consumer Electronics Energy and Lighting Industrial Medical Security Space Avionics and Defense Video and Imaging TI E2E Community www ti com wirelessconnectivity Mailing Address Texas Instruments Post Office Box 655303 Dallas Texas 75265 Copyright 2014 Texas Instruments Incorporated www ti com automotive www ti com communications www ti com computers www ti com consumer apps www ti com energy www ti com industrial www ti com medical www ti com security www ti com space avionics defense www ti com video
12. ent Platform cccecceeeeeeee nee eeeeeeeneeeeseeneneeesseennneesenes 13 12 Theoretical Parallel Resistor Value for Desired Q oo cee c cece cece cece cece eee eee nee e ene eeeeeneeseeneeeeaeneesaane 17 13 Theoretical Capacitance Values for Resonance at Desired Q ec ccce ccc cc cece eee ence eee eens eeeneeeenneneeaanes 17 List of Tables 1 CONMECIOl P AF saevecscecatataunsceeeusdsicoventeneesssiinekecncrnsinteeceeieerssoreswueneecetaneorereqncesiienceviencese 6 2 Sie 0 106 eye a ee ene en ee ee ene E ee ee E ne eae 7 SLOU372A June 2013 Revised June 2014 List of Figures 3 Submit Documentation Feedback Copyright 2013 2014 Texas Instruments Incorporated j User s Guide TEXAS SLOU372A June 2013 Revised June 2014 INSTRUMENTS TRF79xOATB NFC HF RFID Reader Module This evaluation module provides directions for TRF7960A and TRF 970A users to implement a 13 56 MHz NFC RFID reader solution using the TRF79x0A IC connected to a Texas Instruments embedded microcontroller or microprocessor development platform Examples of such development platforms are the MSP EXP430F5438 board MSP EXP430F5529 board the ARM Cortex M3 M4 based board or any other Tl embedded microcontroller platforms with the EM socket headers populated This document also covers the TRF 79x0ATB module as it relates to using the module for evaluation and development purposes in conjunction with Texas Instruments Embedded Development platforms It does
13. et USB OTG Host Device and CAN enabled Stellaris ARM Cortex M3 based microcontrollers Each board has an In Circuit Debug Interface ICDI that provides hardware debugging functionality not only for the on board Stellaris devices but also for any Stellaris microcontroller based target board The development kit contains all cables software and documentation needed to develop and run applications for Stellaris microcontrollers easily and quickly The Stellaris DK LM3S9B96 EM2 TRF7960R Development Kit features StellarisWare Peripheral Library USB Library and Graphics Library in conjunction with ARM development tools from ARM tools partners An EPI header to EM header interface board DK LM3S9B96 EM2 is needed for use with the TRF7960TB module f Ce m meresan i nite pa E as 12 wi TEXAS INSTRUMENTS igre Increment Decrement Nin p 1 Aatarta VO cara Gerected www ti com stellaris Figure 11 DK LM3S9B96 EM2 TRF7960R Development Platform SLOU372A June 2013 Revised June 2014 TRF79x0ATB NFC HF RFID Reader Module 13 Submit Documentation Feedback Copyright 2013 2014 Texas Instruments Incorporated I TEXAS INSTRUMENTS Quick Start www ti com Quick Start 7 14 1 oo oe SN Plug TRF79x0ATB Module into microcontroller development platform of choice NOTE If DK LM3S9B96 board remove SDRAM module and replace with DK LM3S9B96 EM2 interface board before attempting
14. nections for Monitoring SP Communications Between MSP430F5438A and TRF79x0A on TRF79x0ATB Module RF3 Debug Header Figure 6 Firmware Development and Debug Setup for MSP EXP430F5438 Experimenters Board 10 TRF79x0ATB NFC HF RFID Reader Module SLOU372A June 2013 Revised June 2014 Submit Documentation Feedback Copyright 2013 2014 Texas Instruments Incorporated TEXAS INSTRUMENTS www ti com MSP EXP430F5529 Experimenters Board 4 MSP EXP430F5529 Experimenters Board The MSP430F5529 Experimenter Board MSP EXP430F5529 is a development platform for the MSP430F5529 device from the latest generation of MSP430 devices with integrated USB The board is compatible with many TI low power RF wireless evaluation modules such as the TRF 79xxATB modules The Experimenter Board helps designers quickly learn and develop using the new F55xx MCUs which provide the industry s lowest active power consumption integrated USB and more memory and leading integration for applications such as NFC HF RFID energy harvesting wireless sensing and automatic metering infrastructure AMI The MSP430F5529 device on the experimenter board can be powered and debugged via the integrated ezFET or via Tl Flash Emulation Tool like the MSP FET430UIF The TRF79x0ATB module plugs into the RF1 and RF2 headers on this MSP EXP board see Figure 7 and Figure 8 For logic analyzer connection during firmware debug user can use test points on TRF79x0ATB
15. perature sensor a three axis accelerometer for motion detection and easy access through holes to all of the available device signals The kit also includes extensive source code examples allowing you to start building C code applications quickly amp Position Screw Terminal Block for OLED Stellaris An 3 User Extemal JTAG Graphics a Power LNMF232H500 User Measurement Header Display oe L Microcontroller ie IB ad avaus Epig een PD Era SPH pega ics _ es pun ee CH2 F ea A kal PCL eae La Tibia F PEs Le PERT Pes Anam PAE wisi cl tt a krh in PANTIS 4 CARD LM4F232Hs 40 nS ESTE wo geivsgeninesotinsay w OnE MAERA ii rua fees STELLARIS MCU Power Select USB Connector SELECT IMA TES USS Connector Reset 3 Axis Analog micnnsl Jdurmper Power ECL WARE Curent Shunt HostDevice Sawitch Accelerometer Card Sot l Button Amplifier OTS and Cument Shunt Resistors Figure 10 EK LM4F232 Development Platform EM header locations on backside 12 TRF79x0ATB NFC HF RFID Reader Module SLOU372A June 2013 Revised June 2014 Submit Documentation Feedback Copyright 2013 2014 Texas Instruments Incorporated la TEXAS INSTRUMENTS www ti com DK LM3S9B96 EM2 TRF7960R ARM Cortex M 3 Develooment Board 6 DK LM3S9B96 EM2 TRF7960R ARM Cortex M 3 Development Board The Stellaris DK LM3S9B96 EM2 TRF7960R Development Kit provides a feature rich development platform for Ethern
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17. red to provide the received analog signal output ANA OUT 19 N C 20 N C SLOU372A June 2013 Revised June 2014 Submit Documentation Feedback TRF79x0ATB NFC HF RFID Reader Module 7 Copyright 2013 2014 Texas Instruments Incorporated TRF79x0ATB Module Schematic TRF79x0ATB Module Schematic 3 8 x 2O ES nat ESC Eg 5 sE 3 EgO amp gC Ego wud 9ee0ce00ceso x lt TESES S 8 ego amp XR EEA 7 Lr v lay FA F a U t e y O N Ew fi Tuning componente will change for different inductance values Senn om eer TRE7S60RHS TRF7970RHB 8 9 jc c se f AE POWER AL POW LAL POEM OWE POF Device Options TRF7960RHB C 13 TEXAS INSTRUMENTS www ti com SPM 190 024 0 4 A _ This schematic drives two separate layouts TRF7960ATB brd and TRF7970ATB brd the only difference is the bottom side silkscreen Figure 3 TRF79x0ATB Module Schematic TRF79x0ATB NFC HF RFID Reader Module Copyright 2013 2014 Texas Instruments Incorporated SLOU372A June 2013 Revised June 2014 Submit Documentation Feedback J TEXAS INSTRUMENTS www ti com TRF79x0ATB Module Schematic MSP EXP430F5438 Experimenters Board The MSP430F5438 Experimenter Board MSP EXP430F5438 is a development platform for the latest generation MSP430 MCUs It features a 100 pin socket that supports the MSP430F5438 data sheet and other devices with similar pinouts The socket allows for qui
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20. their own design or application Below are some design and application notes for users to reference if they want to change the antenna Q factor or experiment further on their own in order to serve their particular application directly TRF79x0ATB coil antenna tuning details starts with calculations to produce the theoretical values shown below and based on measurements of antenna coil on Rev B board The coil value nominally measures 0 95 uH at 13 56 MHz and X 0 8 j80 8 0 990 63 4 To calculate the necessary values required for course resonance tuning and proper Q setting of the antenna the following formula is used CRES total s otal total a where 2nf 1 SLOU372A June 2013 Revised June 2014 TRF79x0ATB NFC HF RFID Reader Module 15 Submit Documentation Feedback Copyright 2013 2014 Texas Instruments Incorporated ld TEXAS INSTRUMENTS Antenna Tuning Details www ti com therefore 1 CRES total a 2n x 13 56 MHz x 0 95 uH CRES total 145 157 pF 2 16 The dampening resistor value can now be calculated for a desired Q value using the formula _ RPAR Qn fL 3 therefore RpAR 2nfLQ 4 For Q 20 IS015693 operations RPAR 1 29 kQ 5 move to standard value of 1 3 KQ For Q 10 IS014443 and ISO15693 operations RpaR 647 6 move to standard value of 680 Q Smith Chart simulation for Rpap value 1 3 KQ reveals theoretical parallel and series capacitor values cap
21. to mount TRF79x0ATB module Apply power Load the base application firmware specific to the platform that you are working with Test for basic communication and functionality Modify and Debug code as desired for specific application or protocol Test for advanced functionality as implemented by modified code Base Application Firmware TRF 9x0ATB module base application firmware for various Texas Instruments Microcontrollers are available here TRF79x0ATB NFC HF RFID Reader Module MSP430F238xx http www ti com litv zip sloc203 Code Composer Studio or IAR MSP430F5438A http focus ti com docs toolsw folders print msp exp430f5438 html MSP430F5529 http www ti com tool nfclink LM4F232 hitp www ti com tool ekc Im4f232 LM3S9B96 http Awww ti com tool dk em2 7960r SLOU372A June 2013 Revised June 2014 Submit Documentation Feedback Copyright 2013 2014 Texas Instruments Incorporated l TEXAS INSTRUMENTS www ti com Mechanical and Physical Information 9 10 Mechanical and Physical Information ae uw CJ 1 412 Antenna Tuning Details Module antenna as shipped is tuned for 50 Q impedance at 13 56 MHz It has a nominal bandwidth of 1 3 MHz which results in a quality factor of approximately 10 Module antenna circuit has a board mounted U FL connector installed for users that want to experiment with different tuning solutions or disconnect onboard antenna and experiment with antennas of
22. ulation Tool licensed copy http Awww fritz dellsperger net TRF79x0ATB NFC HF RFID Reader Module SLOU372A June 2013 Revised June 2014 Submit Documentation Feedback Copyright 2013 2014 Texas Instruments Incorporated ld TEXAS INSTRUMENTS www ti com Revision History Revision History Changes from Original June 2013 to A Revision Page GOmeciea links mn Decio T2 6cdscaccanteanneuesasnndeerssanbatmentonssneetecuamsretesnnsssbeesantsanasdeataorsenstedtdearssaseateas 20 NOTE Page numbers for previous revisions may differ from page numbers in the current version SLOU372A June 2013 Revised June 2014 Revision History 21 Submit Documentation Feedback Copyright 2013 2014 Texas Instruments Incorporated IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries Tl reserve the right to make corrections enhancements improvements and other changes to its semiconductor products and services per JESD46 latest issue and to discontinue any product or service per JESD48 latest issue Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete All semiconductor products also referred to herein as components are sold subject to Tl s terms and conditions of sale supplied at the time of order acknowledgment Tl warrants performance of its components to the specifications applicable at the time of sale in accordance with the war
23. user also has access to and full control over the TRF79x0A EN2 and EN lines allowing for design and development of ultra low power NFC HF RFID systems The module has an onboard boost converter TPS61222DCKT that boosts 3 3 VDC in to 5 VDC out to TRF79x0A IC for 23 dBm full transmitter power out operations An impedance matching circuit from 4 Q to 50 Q is populated on the module and this is connected to a tuned 50 Q antenna circuit which consists of an onboard four turn coil with series and parallel passive elements capacitors and a resistor Test points are available on the board for checking firmware operations with the oscilloscope or logic analyzer impedance matching and for attaching external antenna Connection to Texas Instruments Microcontroller platforms are made via Samtec EM headers located on the underside of the board Connectors P1 RF1 and P2 RF2 SS 2 Mas 22 2 N 4 rae D miso FID 4 lt an a i G IDATA_CLK OFT 25 Je TC uR A Ci a rad 4 i eee Ua ieor 3 O C26 of rh EP E e n T me i j lt FID3 BA J aie Gi 4 AL E i c24 Tst port 2O E Pop 28 ji Figure 1 TRF7960ATB Evaluation Module SLOU372A June 2013 Revised June 2014 TRF79x0ATB NFC HF RFID Reader Module 5 Submit Documentation Feedback Copyright 2013 2014 Texas Instruments Incorporated 2 6 I TEXAS INSTRUMENTS TRF79x0ATB Connections and Technical Details www ti com coal m wy o a
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