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ez linx? hardware user guide i coupler? isolated inte rface development environment one technology way ? p. o. box 9106 ? norwood, ma 02062 - 9106, u.s.a. ? tel: 781.329.4700 ? fax: 781.461.3113 ? www.analog.com please see the last page for an important warning and legal terms and conditions . rev. pra | page 1 of 15 features plug and play system evaluation easy evaluation of eight isolated physical layer communication standards open source hardware open source software i coupler? and i so power? technology adsp - bf548 blackfin processor running uclinux sample pc applicati on sample embedded uclinux application 64 mb ram 32 mb flash extender connector for additional functionality applications isolated interfaces evaluation kit conte nts one each ezlinx - iiide - ebz power supply usb - a to usb mini b cable ezlinx - iiide - ebz figur e 1 . general description the ez linx i coupler isolated interface development environment provides developers with a cost - effective, plug and play method for evaluating eight physical layer, digitally - isolated communication standa rds( usb , rs - 422, rs - 485, rs - 232, can , spi , i2c and lvds). the blackfin ? adsp - bf548 processor is used to run the uclinux operating system and allows for easy customization through the open source hardware and software platform. development time is significa ntly reduced for embedded designers and system architects who are designing and evaluating isolated communication standards.the interfaces on ez linx use adi 's isolated transceivers with integrated i coupler and iso power? digital isolator technology. the har dware of th e ez linx i coupler isolated interface development environment contains the adsp - bf548 b lackfin processor with 64mb of ram and 32mb of flash memory. the isolated physical layer communication standards are implemented using adi's isolated transceiv ers with integrated i coupler and iso power technology. included are the following: ? isolated usb using the adum3160 ? isolated can using the adm 3053 signal and power isolated can transceiver ? isolated rs - 485 and rs - 422 using the adm2587e signal and power isolated rs - 485/rs - 422 transceiver ? isolated rs - 232 using the adm3252e signal and power isolated rs - 232 transceiver ? isolated i2c using the adum1250 and adum5000 ? isolated spi using the adum3401 , adum3402 and adum5000 ? isolated lvds using the adum3442 , adum5000 , adn4663 and adn4664
ez linx? hardware user guide i coupler? isolated inte rface development environment one technology way ? p. o. box 9106 ? norwood, ma 02062 - 9106, u.s.a. ? tel: 781.329.4700 ? fax: 781.461.3113 ? www.analog.com please see the last page for an important warning and legal terms and conditions . rev. pra | page 2 of 15 table of conte nts features .............................................................................................. 1 applications ....................................................................................... 1 evaluation kit contents ................................................................... 1 ezlinx - iiide - ebz .......................................................................... 1 general description ......................................................................... 1 revision history ............................................................................... 2 system architecture .......................................................................... 3 isolated can ................................................................................. 3 isolated rs - 485 and rs - 422 ........................................................ 4 isolated usb .................................................................................. 5 isolated rs - 232 ............................................................................. 6 isolated i 2 c .....................................................................................6 isolated spi .....................................................................................7 isolated lvds ................................................................................9 power input ................................................................................. 10 3.3v power supply ..................................................................... 10 1.2v, 2.5v and 5v power supplies ............................................ 11 extender connector ................................................................... 12 rs - 232 console .......................................................................... 12 ordering information .................................................................... 14 ordering guide .......................................................................... 14 revi sion history 5/1 2 re vision pra : preliminary versi on
ez lin x ? hardware user guide i coupler ? isolated interface development environment rev. pra | page 3 of 15 system architecture the system architecture block diagram of the ez linx hardware is shown in figure 2 . an extender connector, hirose fx8 120p - sv(91), is added for additional f unctionality. the ethernet option is not fitted on the standard ez linx hardware . figure 2 . ezlinx hardware block diagram isolated can the isolated can port is implemented using the adm3053 signal and power isolated can trans ceiver. the adm3053 connects to can0 of the adsp - bf548 and is capable of functioning at data rates of up to 1mbit/s. figure 3 shows a circuit diagram of the implementation of the adm3053 on the ez linx hardware. the can node can b e configured using jumpers jp17 and jp18. when both jumpers jp17 and jp18 is fitted, the can node is split terminated with 120 ? and a common mode capacitor o f 47nf. if termination is not required , remove jp17 and jp18. table x show jumper configurations f or all the interfaces on ez linx. the 5v supply is connected to v cc (pin 8) to power the iso power isolated power supply of the adm3053. this generates an isolated 5v on the visoout pin(pin 12) of the adm3053 and needs to is connected to the visoin pin(pin 19 ). the 3.3v supply is connected to the v io pin (pin 6) to power the i coupler signal isolation that needs to be compatible with the 3.3v logic of the blackfin adsp - bf548. the rs pin(pin 18 ) is connected through a 0 ? resistor to can_iso_gnd in order to de - acti vate slew rate limiting, a four pin screw terminal connector , j8 is used for easy access to the canh (pin 1) , canl (pin 3) and can_iso_gnd (pin 2 and 4) connections. application note an - 1123 provides more informati on on implementing can nodes.
i coupler ? isolated interface development environment ez lin x ? hardware user guide rev. pra | page 4 of 15 figure 3 . adm3053 isolated can implementation isolated rs - 485 and rs -422 the isolated rs - 485 and rs - 422 port is implemented using the adm2587e signal and power isolated can transceiver. the adm25 87e connects to uart2 of the adsp - bf548 and is capable of functioning at data rates of up to 500kbit/s. figure 4 shows a circuit diagram of the implementation of the adm3053 on the ez linx hardware. the rs - 485 node can be configur ed using jumpers jp 3, jp4, jp19 and jp 40. to configure the node as a half - duplex rs - 485 node , connect jp3 and jp4. w hen jp3 and jp4 are fitted , it will connect a to y and b to z. when jp3 and jp4 are removed, the node will be configured as a full duplex rs - 485 node or as a rs - 422 node. when jp19 is fitted, the a and b pins will be terminated with 120 ?. if termination is not required, remove jp19. when jp40 is connected a pull - up resistor on the rxd pin of 10k ? will be connected. table x show jumper configurations for all the interfaces on ez linx. the 3.3 v supply is connected to v cc (pin 2 and 8) to pow er the iso power isolated power suppl y and i coupler signal isolation of the adm 2587e . this generates an isolated 3.3 v on the visoout pin(pin 12) of the adm 2587e and is connected to the visoin pin(pin 19). a six pin screw terminal connector, j7 is used for easy access to the a (pin 2 ), b (pin 3) , z(pin 4), y(pin 5) and rs - 485 _iso_gnd(pin 1 and 6 ) connections. application note an - 960 provides more information on circuit implementation of rs - 485 and rs - 422 applications .
ez lin x ? hardware user guide i coupler ? isolated interface development environment rev. pra | page 5 of 15 figure 4 . adm2 587e isolated rs - 485 and rs - 422 implementation isolated usb the isolated usb port is implemented using the adum3160 full speed usb isolator. the ad u m 3 160 connects to the integrated usb phy of the adsp - bf548 and is capable of functioning at data rates of u p to 12m bit/s. figure 5 shows a circuit diagram of the implementation of the ad u m3160 on the ez linx hardware. the v bus1 and v dd1 of the adum3160 is powered from the bus power 5. vbus2 and vdd2 is powered from 3.3v generated by the ez linx power supply. a mini usb - b connector is used for easy connection to a usb master. figure 5 . adum3160 isolated usb implementation
i coupler ? isolated interface development environment ez lin x ? hardware user guide rev. pra | page 6 of 15 isolated rs -232 the isolated rs - 232 port is implemented using the adm3252e signal and p ower isolated rs - 232 transceiver. the adm3252e connects to uart3 of the adsp - bf548 and is capable of functioning at data rates of up to 460 kbit/s. figure 6 shows a circuit diagram of the implementation of the adm3 252e on the ez lin x hardware. the isolated rs - 232 jp2 jumper when fitted will implement a loopback of the transmitter output(tout1) to the receiver input(rin1). the v cc of the adm3252e is powered with 3.3v and will generate an isolated 3.3v on v iso using adis iso power tec hnology. a three pin screw terminal connector, j 6 is used for easy access to the tout1(pin 2) , rin1(pin 3) and rs 232 _iso_gnd(pin 1) connections. figure 6 . adm3252e isolated rs - 232 implementation isolated i 2 c the isolated i 2 c port is implemented using the adum1250 i2c isolator and adum5000 iso power isolated dc to dc converter. the ad u m 1250 connects to tw1 of the adsp - bf548 and is capable of functioning at a maximum frequency of 1mh z . figure 7 shows a circuit diagram of the implementation of the ad u m 1250 and adum5000 on the ez linx hardware. v dd1 of the adum1250 and v dd1 of the adum5000 is powered by 3.3v. the adum5000 will generate an isolated 3.3v and is used to supply power to v dd2 of the adum1250 . a three pin screw terminal connector, j22 is used for easy access to the sd a(pin 1 ), scl (pin 2 ) and i2c _iso_gnd(pin 3 ) connections.
ez lin x ? hardware user guide i coupler ? isolated interface development environment rev. pra | page 7 of 15 figure 7 . adum1250 and adum5000 isolated i 2 c implementation isolated spi two isolated spi port s are implemented using the adum3401, adum3402 i coupler signal isolators and the adum5000 iso power isolated dc to dc converter. the adum3401 of the isolate d spi1 is connected to spi0 of the adsp - bf548 . the adum3402 is used for isolating the spi slave sele ct lines. figure 8 shows a circuit diagr am of the implementation of isolated spi1 using the adum 3401, adum3402 and adum5000 on the ez linx hardware. the adum3401 of the isolate d spi2 is connected to spi2 of the a dsp - bf548 . the adum3402 is used for isolating the spi slave select lines. figure 9 shows a circuit diagr am of the implementation of isolated spi2 using the adum3401, adum3402 and adum5000 on the ez linx hardware. v dd1 of the adum 34 01, adum3402 and v dd1 of the adum5000 are powered by 3.3v. the adum5000 will generate an isolated 3.3v and is used to supply power to v dd2 of the adum 3401 and adum3402. two seven pin screw terminal connector s, j10 and j25 are used for easy access to the sp isck(pin 1), spimosi(pin 2), spisel1 /spiss (pin 3), spimiso(pin 4). spisel2(pin 5), spisel3(pin 6) and spi_iso_gnd(pin 7). to connect isolated spi1 as a master, connect jumpers jp5, jp7, jp9, jp11, jp13 and jp15 while leaving jumpers jp6 , jp8, jp10, jp12 , j p14 and jp16 open. to connect isolated spi1 as a slave, connect jumpers jp6 , jp8, jp10, jp12 , jp14 and jp16 while leaving jumpers jp5, jp11, jp13 and jp15 open. to c on ne c t is o l ate d spi 2 as a master, connect jumpers jp 22, jp24, jp26, jp28 , jp30 and jp32 whi le leaving jumpers jp 23 , jp25, jp27, jp29 , jp31 and jp33 open. to connect isolated spi1 as a slave, connect jumpers jp23 , jp25, jp27, jp 29, jp31 and jp33 while leaving jumpers jp22, jp24, jp26, jp28 , jp 30 and jp32 open.
i coupler ? isolated interface development environment ez lin x ? hardware user guide rev. pra | page 8 of 15 figure 8 . adum3401, adum3402, adum5000 isolated spi implementation
ez lin x ? hardware user guide i coupler ? isolated interface development environment rev. pra | page 9 of 15 figure 9 . adum3401, adum3402, adum5000 isolated spi implementation isolated lvds t he isolated lvds port is implemented using the adum3 442 i coupler signal isolator , t he adn4664 dual lvds receiver, the adn4663 dual lvds transmitter and the adum5000 iso power isolated dc to dc converter. the adum34 42 is connected to sp ort2 of the adsp - bf548 . figure 10 shows a circuit diagr am of the implementatio n of isolated lvds using the adum34 42 , ad n4663, adn4664 and adum5000 on the ez linx hardware. v dd1 of the adum34 42 , and v dd1 of the adum5000 are powered by 3.3v. the adum5000 will generate an isolated 3.3v and is used to supply power to v dd2 of the adum34 42, v cc of the adn4663 and the adn4664. a 32 pin header connector is used for easy access to the isolated lvds signals.
i coupler ? isolated interface development environment ez lin x ? hardware user guide rev. pra | page 10 of 15 figure 10 . adum3442, adn4663, adn4664 and adum5000 isolated lvds implementation power input an ac/dc deskto p power supply is used to supply 7.5v input to the barrel connector j1 on the ez linx hardware. this supply connects through a protection circuit as shown in figure 11 to the unreg_in node of the circuit. figure 11 . power input 3.3v power supply the adp1864 constant frequency current - mo de step - down dc - to - dc controller is used with an external p - channel mosfet to generate the regulated 3.3v power supply for the ez linx hardware. the circuit implementation of the 3.3v power supply is shown in figure 12.
ez lin x ? hardware user guide i coupler ? isolated interface development environment rev. pra | page 11 of 15 figure 12 . 3.3v power supply 1.2v, 2.5v and 5v po wer supplies a p - channel m osfet is used to regulate the 3.3v input to 1.2v , see figure 13. the adp1706 linear regulator is used to regulate the 3.3v input to 2.5v , see figure 14 . the adp3335 low dropout regulator is used to regulate the unreg_in input to 5 v, s e e figure 15 . figure 13 . 1.2v power supply figure 14 . 2.5v power supply figure 15 . 5v power supply
i coupler ? isolated interface development environment ez lin x ? hardware user guide rev. pra | page 12 of 15 extender connector the hirose fx8 120p - sv(91) extender connector is used for daughter board conn ections. this allows for additional functionality to be added to the ezlinx hardware. figure 16 shows the circuit implementation of the extender connector j23 and j26. connector j26 is a three pin header connector and allows for t he can1 signals of the adsp - bf548 to be routed to an external daughter board. figure 16 . e xtender connector using hirose fx8 120p - sv(91) rs -232 console the rs - 232 console connector is used for accessing the console of the uclin ux kernel running on the adsp - bf548 processor. it uses the adm3202 rs - 232 line driver and receiver to connect to uart1 of the adsp - bf548. the rs - 232 signals connect to a db - 9 connector, j4. a circuit implementation of the rs - 232 console is shown in figure 17.
ez lin x ? hardware user guide i coupler ? isolated interface development environment rev. pra | page 13 of 15 figure 17 . rs - 232 console implementation
i coupler ? isolated interface development environment ez lin x ? hardware user guide rev. pra | page 14 of 15 ordering information ordering guide model description ez linx - iiide- ebz 1 i coupler isolated interface development environment evaluation board 1 z = rohs compliant part.
ez lin x ? hardware user guide i coupler ? isolated interface development environment rev. pra | page 15 of 15 notes esd caution esd (electrostatic discharge) sensitive device . charged devices and circuit boards can discharge without detection. although this product features patented or proprietary protection circuitry, damag e may occur on devices subjected to high energy esd. therefore, proper esd precautions should be taken to avoid performance d egradation or loss of functionality. legal terms and conditions by using the evaluation board discussed herein (together with any tools, components documentation or support materials, the evaluation board), you are agreeing to be bound by the terms and conditions set forth below (agreement) unless you have purchased the evaluation board, in which case the analog devices standard terms and conditions of sale shall govern. do not use the evaluation board until you have read and agreed to the agreement. your use of the evaluation board shall signify your acceptance of the agreement. this agreement is made by and between you (custom er) and analog devices, inc. (adi), with its principal place of business at one technology way, norwood, ma 02062, usa. subject to the terms and conditi ons of the agreement, adi hereby grants to customer a free, limited, personal, temporary, non - exclusi ve, non - sublicensable, non - transferable license to use the evaluation board for evaluation purposes only. customer understands and agrees that the evalu ation board is provided for the sole and exclusive purpose referenced above, and agrees not to use the e valuation board for any other purpose. furthermore, the license granted is expressly made subject to the following additional limitations: customer shall not (i) rent, lease, display, sell, transfer, assign, sublicense, or distribute the evaluation bo ard; and (ii) permit any third party to access the evaluation board. as used herein, the term third party includes any entity other than adi, customer, their employees, affiliates and in - house consultants. the evaluation board is not sold to customer; all rig hts not expressly granted herein, including ownership of the evaluation board, are reserved by adi. confidentiality. this agreement and the evaluation board shall all be considered the confidential and proprietary information of adi. customer may not discl ose or transfer any portion of the evaluation board to any other party for any reason. upon discontinuation of use of the eva luation board or termination of this agreement, customer agrees to promptly return the evaluation board to adi. additional restrict ions. customer may not disassemble, decompile or reverse engineer chips on the evaluation board. customer shall inform adi of any occurred damages or any modifications or alterations it makes to the evaluation board, including but not limited to soldering or any other activity that affects the material content of the evaluation board. modifications to the evaluation board must comply with applicable law, including but not limited to the rohs directive. termination. adi may t erminate this agreement at any ti me upon giving written notice to customer. customer agrees to return to adi the evaluation board at that time. limitation of liability. the evaluation board provided he reunder is provided as is and adi makes no warranties or representations of any kind w ith respect to it. adi specifically disclaims any representations, endorsements, guarantees, or warranties, express or implied, related to the evaluation board including, but not limited to, the implied warranty of merchantability, title, fitness for a par ticular purpose or noninfringement of intellectual property rights. in no event will adi and its licensors be liable for any incidental, special, indirect, or consequential damages resu lting from customers possession or use of the evaluation board, includ ing but not limited to lost profits, delay costs, labor costs or loss of goodwill. adis total liability from any and all cau ses shall be limited to the amount of one hundred us dollars ($100.00). export. customer agrees that it will not directly or indire ctly export the evaluation board to another country, and that it will comply with all applicable united states federal laws and regulations relating to exports. governing law. this agreement shall be governed by and const rued in accordance with the substa ntive laws of the commonwealth of massachusetts (excluding conflict of law rules). any legal action regarding this agreement will be heard in the state or fede ral courts having jurisdiction in suffolk county, massachusetts, and customer hereby submits to t he personal jurisdiction and venue of such courts. the united nations convention on contracts for the international sale of g oods shall not apply to this agreement and is expressly disclaimed. ? 2012 analog d evices, inc. all rights reserved. trademarks and registered trademarks are the property of their respective owners. ug10615 - 0 - 4/12(0)

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