evaluation board us er guide ug - 382 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 evaluation board for fsk ad5700 / ad5700 - 1 hart modem please see the last page for an important warning and legal terms and conditions . rev. a | page 1 of 8 features convenient connections for power through screw terminal block use of on - chip rc osc illator or an external crystal various link options equipment needed host c ontroller with uart interface general description this user guide describes the evaluation b oard for the ad5700 / ad5700 - 1 highway addressable remote transducer (hart ? ) modem . thi s board can be used to evaluate either the ad5700 or the ad5700 - 1 part . both can operate from a single 1. 7 1 v to 5.5 v supply , with the ad5700 - 1 having the added feature of an integrated oscillator. complete specifications for both products can be found in the ad5700 / ad5700 - 1 data sheet available from analog devices, inc., which should be con sulted in conjunction with this user guide when using the evaluation board. evaluation board figure 1. 10565-001
ug- 382 evaluation board user guide rev. a | page 2 of 8 table of contents features .............................................................................................. 1 equipment needed ........................................................................... 1 general description ......................................................................... 1 evaluation board .............................................................................. 1 revision history ............................................................................... 2 evaluation board hardware ............................................................ 3 powe r supplies ...............................................................................3 link options ..................................................................................3 evaluation board schematics and artwork ...................................4 ordering information .......................................................................7 bill of materials ..............................................................................7 revision histo ry 5 / 13 rev. 0 to rev. a changed supply min from 2 v to 1.71 v ...................................... 1 2 /1 2 revision 0 : initial version
evaluation board user guide ug- 382 rev. a | page 3 of 8 evaluation board har dware power supplies agnd and dgnd are connected together on the board to provide a single gnd signal. to power the e va l - ad 5700 - 1 ebz , supply 3.3 v between the v cc and gnd inputs for t he analog supply of the ad5700 / a d5 700 - 1 . with l5 inserted (default), this also provide s power to iov cc . link options a number of link s on the evaluation board must be set for the required operating setup before using the board. the functions of these link options are described in detail in table 2 . the default setup is using the on - chip reference, the crystal oscillator , and the internal receive filter (see table 1 ) . table 1 . default link options link no. option clk_cfg1 a clk_cfg0 a xtal_en a filter_sel b l1 a l2 a ref_en b duplex a l5 inserted l6 not i nserted l 8 inserted table 2 . link functions link no. function clk_cfg1, clk_cfg0 , xtal_en the ad5700 / ad5700 -1 support numerous clocking configurations to allow a simple , low cost solution. the ad5700 / ad5700 -1 can use an external crystal or ceramic resonator, a cmos input, or an in ternal rc oscillator ( ad5700 -1 only) . the clk_cfg0, clk_cfg1 , and xtal_en links configure the clock generation as follows : xtal_en clk_cfg1 clk_cfg0 clkout description b a a no output 3.6864 mhz cmos clock connected at xtal1 pin b a b no output 1.2288 mhz cmos clock connected at xtal1 pin b b a no output internal oscillator enabled b b b 1.2288 mhz output internal oscillator enabled, clkout enabled a a a no output crystal oscillator enabled a a b 3.6864 mhz output crystal oscillator enabled, clkout enabled a b a 1.8432 mhz output crystal oscillator enabled, clkout enabled a b b 1.2288 mhz output crystal oscillator enabled, clkout enabled filter_sel, l1, l2 these link options set whether the internal or external receive band - pass filter is used at the hart input. setting filter_sel to position b and l1 and l2 to position a sets the board to use the internal receive band - pass filter. setting filter_sel to position a and l1 and l2 to position b sets the board to use the external receive band - pass filter. ref_en this sets whether the internal or an external reference is used. position a d isables the internal reference , and a buffered external 2.5 v reference source must be applied at ref. position b e nables the internal 1.5 v reference and buffer. duplex allows the modulator and demodulator of the ad5700 / ad5700 -1 to be enabled at the same time. position a t he ad5700 / ad5700 - 1 operate in half -d uplex operation (controlled by rts ) . position b t he ad5700 / ad5700 - 1 operate in full d uplex operation, with the modulator and demodulator of the ad5700/ ad5700 -1 enabled at the same time. l5 allows v cc to be connected directly to io v cc . inserted v cc is connected to io v cc . not inserted v cc is disconnected from iov cc . l6 do not insert this link . l8 this link must be inserted .
ug- 382 evaluation board user guide rev. a | page 4 of 8 evaluation board sch ematic and artwork figure 2. schematic of controller circuitry 10565-002
evaluation board user guide ug- 382 rev. a | page 5 of 8 figure 3. component placement drawing figure 4. component side pcb drawing 10565-003 10565-004
ug- 382 evaluation board user guide rev. a | page 6 of 8 figure 5. solder side pcb drawing 10565-005
evaluation board user guide ug- 382 rev. a | page 7 of 8 order ing information bill of materials table 3 . q uan t ity reference designator description part number supplier/number 1 u2 hart m odem ad5700 - 1bcpz analog devices 2 c1, c2 36 pf, c0g c apacitor (0603) c0603c360j5gactu fec 1865478 2 c3, c4 1 f, x7r c apacitor (0603) c0603c105k4ractu fec 1828826 2 c5, c10 100 nf, x7r c apacitor (0603) mcca000159 fec 1759016 1 c6 300 pf, c0g c apacitor (0603) grm1885c1h301ja01d digi - key 490- 1438 -1 -nd 1 c7 150 pf, c0g c apacitor (0603) 06031a151jat2a fec 1740606 1 c8 680 pf, c0g c apacitor (0603) mcca000221 fec 1759084 1 c12 22 nf, x7r c apacitor (0603) 06035c223kat2a fec 1658869 1 c14 2.2 f, x7r c apacitor (0603) grm188r71a225ke15d fec 1797012 1 c17 2.2 nf, c0g c apacitor (0603) c0603c222j5gactu fec 1535565 1 c19 10 f, t antalum c apacitor (case a) tcja106m010r0300 fec 1135234 10 clk_cfg0, clk_cfg1, duplex, filter_sel, ref_en, xtal_en, j2, j3, l1, l2 headers m20 - 9990345 fec 1022248 1 j1 2 - p in t erminal b lock ctb5000/2 fec 151789 3 l5, l6, l8 2 - pin (0.1" p itch) header and s horting s hunt m20 - 9990246 fec 1022247 1 r1 1 m (0603) mc 0.063w 0603 5% 1m fec 9331727 2 r2, r3 1.2 m (0603) rc0603fr - 071m2l fec 9238859 1 r4 150 k (0603) mc 0.063w 0603 1% 150k fec 9330623 1 r6 0 (0603) crcw06030000z0ea fec 1469739 1 3 tp1 to tp13 test point 20 - 313137 fec 8731144 1 y1 quartz c rystal smd abls - 3.6864mhz - l4q -t digi - key 535- 9893 -1 -nd
ug-382 evaluation board user guide rev. a | page 8 of 8 notes esd caution esd (electrostatic discharge) sensitive device . charged devices and circuit boards can discharge without detectio n. although this product features patented or proprietary pr otection circuitry, damage may occur on devices subjected to high energy esd. therefore, proper esd precautions should be taken to avoid performance degradation or loss of functionality. legal terms and conditions by using the evaluation board discussed herein (together with an y tools, components documentation or support materials, the ev aluation 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 a nd 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 a greement is made by and between you (customer) and analog devices, inc. (adi), with its principal place of business at one technology way, norwood, ma 02062, usa. subject to the terms and condition s of the agreement, adi hereby grants to customer a free, limited, personal, temporary, non-exclusive, non-sublicensable, non-transferable license to use the evaluation board for evaluation purposes only. customer understands and agrees that the evaluation board is provided for the sole and exclusive purpose referenced above, and agrees not to use the evaluation 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 boar d; 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 evaluatio n board is not sold to customer; all righ ts not expressly granted herein, including ownership of the evaluation board, are reserved by adi. confiden tiality. this agreement and the evaluation board shall all be c onsidered the confidential and propriet ary information of adi. customer may not disclose or transfer any portion of the evaluation board to any other party for any reason. upon discontinuation of use of the evaluation board or termination of this agreement, customer agrees to promptly return the evaluation board to adi. additional restri ctions. customer may not disassemble, decompile or reverse engine er 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 o r 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. termina tion. adi may terminate this agreement at any time 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 hereunder is provided as is and adi makes no warranties or representations of any kind with respect to it. adi specifically disclaims any re presentations, endorsements, gua rantees, or warranties, express or implied, related to the evaluation board including, but not limited to, the implied warranty of merchantability, title, fitness for a particular purpose or noninfringement of intellectual property rights. in no event will adi and its licensors be liable for any incidental, special, indirect, or consequential damag es resulting from customers possession or use of the evaluation board, including but not limited to lost profits, delay costs, labor costs or loss of goodwill. adis total liab ility from any and all causes shall be limited to the amount of one hundred us dollars ($100.00). export. customer agrees that it will not directly or indirectly export the evaluati on 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 constru ed in accordance with the substantive laws of the commonwealth of massachusetts (excluding conflict of law rules). any legal action regarding this agreement will be heard in the state or federa l courts having jurisdiction in suffolk county, massachusetts, and customer hereby submits to the personal jurisdiction and venue of such courts. the united nations convention on contracts for the international sale of goods shall not apply to this agreement and is expressly disclaimed. ? 2012C2013 analog devices, inc. all rights reserved. trademarks and registered trademarks are the prop erty of their respective owners. ug10565-0-5/13(a)
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