View XRT7298_3138702.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

XRT7298 '6676 ( ,qwhjudwhg /lqh 7udqvplwwhu 5hy . (;$5 &rusrudwlrq .dwr 5rdg )uhprqw &$ ` ` )$; $sulo fea tures - )xoo\ ,qwhjudwhg 7udqvplw ,qwhuidfh iru '6676 ru ( - ,qwhjudwhg 3xovh 6kdslqj &lufxlw - &rpsoldqfh zlwk &rpsdwlelolw\ %xoohwlq - &rpsoldqfh zlwk &&,77 5hfrpphqgdwlrqv * * - &rpsoldqfh zlwk %hoofruh 751:7 - &rpsoldqfh zlwk $16, 7 - %xlowlq %=6+'% (qfrghu dqg 'hfrghu - 5hprwh dqg /rfdo /rrsedfn )xqfwlrqv - 6lqjoh 9 3rzhu 6xsso\ - &rqwdlqv 7udqvplw &orfn 'xw\ &\foh &ruuhfwlrq &lufxlw rq &kls applica tions - ,qwhuidfh iru 621(7 '6 dqg ( 1hwzrun (txlsphqw - 'ljlwdo &urvv&rqqhfw 6\vwhpv - &68'68 (txlsphqw - 3&0 7hvw (txlsphqw - )lehu 2swlf 7huplqdov general description 7kh ;57 lv d ixoo\ lqwhjudwhg 3&0 /lqh 'ulyhu ,& lqwhqghg iru '6 0esv ru ( 0esv dssolfdwlrqv ,w fdq dovr eh xvhg iru wudqvplwwlqj 621(7 676 0esv vljqdov ryhu frd[ldo fdeoh 7kh ,& lv ghvljqhg wr frpsohphqw hlwkhu ;57 '6621(7 676 ru ;57( ( ,qwhjudwhg /lqh 5hfhlyhuv 7kh ;57 frqyhuwv lqsxw forfn dqg gxdoudlo xqlsrodu gdwd lqwr $0, sxovhv dffruglqj wr $7 7 7hfkqlfdo $gylvru\ 1r ru &&,77 * uhfrpphqgdwlrqv 7kh ghylfh surylghv %=6 '6 ru +'% ( hqfrglqj ixqfwlrqv iru gdwd wr eh wudqvplwwhg wr wkh olqh $ frpsolphqwdu\ ghfrghu flufxlw lv dovr lqfoxghg lq wkh fkls iru ghfrglqj uhfhlyhg vljqdov iurp dq h[whuqdo olqh uhfhlyhu %rwk hqfrghu dqg ghfrghu ixqfwlrqv fdq eh glvdeohg lqghshqghqwo\ wkurxjk h[whuqdo frqwuro slqv ,q wkh uhfhlyh gluhfwlrq frglqj huuruv dqg elsrodu ylrodwlrqv duh ghwhfwhg dqg iodjjhg dw dq rxwsxw slq 2qfkls sxovh vkdshu flufxlwu\ holplqdwhv qrupdoo\ uhtxluhg h[whuqdo frpsrqhqwv iru olqh htxdol]dwlrq wr phhw wkh furvvfrqqhfw whpsodwh )ru v\vwhp ohyho wurxeohvkrrwlqj dqg whvwlqj erwk orfdo dqg uhprwh orrsedfnv duh srvvleoh zlwk wkh exlowlq orrsedfn flufxlw 7kh ;57 ghylfh frqwdlqv dq rqfkls 7udqvplw &orfn 'xw\ &\foh &ruuhfwlrq flufxlw 7klv flufxlw jxdudqwhhv wkdw wkh ;57 ghylfh zloo jhqhudwh sxovhv wkdw zloo phhw wkh ydulrxv sxovhwhpsodwh uhtxluhphqwv hj ,787 * iru ( $16, 7 dqg %hoofruh 751:7 iru '6 surylghg wkh xvhu vxssolhv d wudqvplw forfn vljqdo wr wkh 7&/. lqsxw slq slq wkdw kdv gxw\ f\foh udqjlqj iurp wr 7klv ihdwxuh holplqdwhv wkh qhhg iru wkh xvhu wr surylgh d wudqvplw forfn vljqdo wr 7&/. zlwk d gxw\ f\foh udqjlqj iurp wr iru ( dqg wr iru '6 7kh ;57 lv pdqxidfwxuhg xvlqj %l&026 whfkqrorj\ dqg lv sdfndjhg lq d slq 3',3 ru 62- sdfndjhv 7kh ghylfh uhtxluhv d vlqjoh 9 srzhu vxsso\ dqg frqvxphv d pd[lpxp srzhu ri p: /lqh fxuuhqw ihhg ghylfh glvvlsdwlrq ordering information part no. package operating t emperaturerange ;57,3 /hdg 0lo 3',3 q q &wr q q & ;57,: - /hdg 0lo -('(& 62- q q &wr q q &
XRT7298 5hy block diagram figure 1. XRT7298 block diagram
XRT7298 5hy pin configuration 51'$7$ 53'$7$ ,&7 7;/(9 5&/. 5/223 //223 '6676 ( 9 '' $ 77,3 75,1* *1'$ 7$26 9 '' ' 73'$7$ 71'$7$ 07,3 7&/. 05,1* *1'' '02 (1&2',6 5&/.2 '(&2',6 5326 %39 51(* 3//287 28 lead soj (jedec,0.300) 51'$7$ 53'$7$ ,&7 7;/(9 9 '' $ 77,3 75,1* *1'$ 5&/. 5/223 //223 '6676 ( 7$26 9 '' ' 73'$7$ 71'$7$ 07,3 7&/. 05,1* *1'' '02 (1&2',6 5&/.2 '(&2',6 5326 %39 51(* 3//287 28 lead pdip (0.600) pin description pin # symbol t ype description 5&/. , receive clock input. ,qsxw vdpsolqj forfn iru 53'$7$ dqg 51'$7$ 5/223 , remote loop back. $ kljk rq wklv slq fdxvhv 53'$7$ dqg 51'$7$ wr wudqvplwwhg wr wkh olqh xvlqj 5&/. 6hwwlqj 5/223 dqg //223 kljk vlpxowdqhrxvo\ lv qrw shuplwwhg //223 , local loop back. $ kljk rq wklv slq fdxvhv 73'$7$ dqg 71'$7$ wr sdvv wkurxjk wkh hq frghu dqg rxwsxw dw 5326 dqg 51(* uhvshfwlyho\ 6hwwlqj //223 dqg 5/223 kljk vlpxowd qhrxvo\ lv qrw shuplwwhg '6676 ( , ds3, sts-1 or e3 select pin $ kljk rq wklv slq vhohfwv '6 ru 676 rshudwlrq dqg vhwv wkh hqfrghu dqg ghfrghu lq %=6 prgh $ orz vhohfwv ( dqg vhwv wkh hqfrghu dqg ghfrghu lq +'% prgh 7$26 , t ransmit all ones select $ kljk rq wklv slq fdxvhv d frqwlqxrxv $0, doo v sdwwhuq wr eh wudqvplwwhg wr wkh olqh 7kh iuhtxhqf\ lv ghwhuplqhg e\ 7&/. 9 '' ' 5 v digital supply iru doo orjlf flufxlwu\ 73'$7$ , t ransmit positive data 73'$7$ lv vdpsohg rq wkh idoolqj hgjh ri 7&/. 3lq dqg slq fdq eh wlhg wrjhwkhu iru elqdu\ lqsxw vljqdov 71'$7$ , t ransmit negativedata. 71'$7$ lv vdpsohg rq wkh idoolqj hgjh ri 7&/. 3lq dqg slq fdq eh wlhg wrjhwkhu iru elqdu\ lqsxw vljqdov 7&/. , t ransmit clock iru 73'$7$ dqg 71'$7$ *1'' digital ground iru doo orjlf flufxlwu\ (1&2',6 , encoder disable. $ kljk rq wklv slq glvdeohv %=6 ru +'% hqfrglqj ixqfwlrqv xqohvv ryhu ulgghq e\ 7$26 uhtxhvw 7klv slq pxvw eh vhw kljk li 73'$7$ dqg 71'$7$ duh douhdg\ hq frghg '(&2',6 , decoderdisable $ kljk rq wklv slq glvdeohv %=6 ru +'% ghfrglqj ixqfwlrqv
XRT7298 5hy pin description (contd) pin # symbol t ype description %39 2 bipolar violation output 7klv slq jrhv kljk iru rqh elw shulrg zkhq d elsrodu ylrodwlrq qrw fruuhvsrqglqj wr wkh dssursuldwh frglqj uxoh ru frglqj huuru lv ghwhfwhg lq wkh 53'$7$ 51'$7$ vljqdov 3//287 2 pll clock output. &orfn rxwsxw v\qfkurql]hg wr 7&/. 51(* 2 receive negative data. 7klv vljqdo lv wkh ghfrghg yhuvlrq ri 51'$7$ 5326 2 receive positive data 7klv vljqdo lv wkh ghfrghg yhuvlrq ri 53'$7$ 5&/.2 2 receive clock output 7klv vljqdo lv wkh lqyhuwhg yhuvlrq ri 5&/. '02 2 driver monitor output. ,i qr wudqvplwwhg $0, vljqdo lv suhvhqw rq 07,3 dqg 05,1* iru 7&/. forfn shulrgv '02 jrhv kljk xqwlo wkh qh[w $0, vljqdo lv ghwhfwhg 05,1* , monitor ring input $0, vljqdo iurp 75,1* fdq eh frqqhfwhg wr wklv slq iru olqh gulyhu idlo xuh ghwhfwlrq ,qwhuqdoo\ sxoohg kljk 07,3 , monitor t ip input $0, vljqdo iurp 77,3 fdq eh frqqhfwhg wr wklv slq iru olqh gulyhu idloxuh ghwhfwlrq ,qwhuqdoo\ sxoohg kljk *1'$ analog ground iru dqdorj flufxlwu\ 75,1* 2 t ransmit ring output 7udqvplw $0, vljqdo lv gulyhq wr wkh olqh yld d wudqviruphu iurp wklv slq 77,3 2 t ransmit t ip output. 7udqvplw $0, vljqdo lv gulyhq wr wkh olqh yld d wudqviruphu iurp wklv slq 9 '' $ 5v analog supply ( 5%) iru dqdorj flufxlwu\ 7;/(9 , t ransmit level select. 7kh rxwsxw vljqdo dpsolwxgh dw 77,3 dqg 75,1* fdq eh ydulhg e\ vhwwlqj wklv slq kljk ru orz :khq wkh fdeoh ohqjwk lv juhdwhu wkdq iw 7;/(9 vkrxog eh vhw kljk :khq lw lv ehorz iw lw vkrxog eh vhw orz 7klv slq lv dfwlyh rqo\ zlwk slq vhw wr '6 ru 676 prgh ,&7 , in-circuit t esting. $ orz dw wklv slq fdxvhv doo gljlwdo dqg dqdorj rxwsxwv wr jr lqwr d kljklp shgdqfh vwdwh wr doorz iru lqflufxlw whvwlqj ,qwhuqdoo\ sxoohg kljk 53'$7$ , receive positive data 15= lqsxw gdwd wr wkh ghfrghu eorfn 6dpsohg rq wkh idoolqj hgjh ri 5&/. 51'$7$ , receive negative data 15= lqsxw gdwd ri wkh ghfrghu eorfn 6dpsohg rq idoolqj hgjh ri 5&/. note : 1 if a bipolarviolationoccurs,rpos andrneg cancorrespondto thedecoded versions of rndat a andrpdat a respectively .if decodis is high,rpos andrneg alwaystrackrpdat a andrndat a respectively .
XRT7298 5hy electrical characteristics (see figure 8 ) t est conditions: v dd =5v 5%, t a = -40 q c to +85 q c, unless otherwise specified. all timing characteristics are measuredwith 10pf loading. symbol parameter min. t yp. max. units ac electrical characteristics 7&/. &orfn 'xw\ &\foh '6 676 7&/. &orfn 'xw\ &\foh ( w5 7&/. &orfn 5lvh 7lph wr qv w) 7&/. &orfn )doo 7lph wr qv w768 73'$7$71'$7$ wr 7&/. )doolqj 6hw 8s 7lph qv w7+2 73'$7$71'$7$ wr 7&/. )doolqj +rog 7lph qv w7'< 77,375,1* wr 7&/. 5lvlqj 3ursdjdwlrq 'hod\ qv 5&/. &orfn 'xw\ &\foh w5 5&/. &orfn 5lvh 7lph wr qv w) 5&/. &orfn )doo 7lph wr qv w568 53'$7$51'$7$ wr 5&/. )doolqj 6hw 8s 7lph qv w5+2 53'$7$51'$7$ wr 5&/. )doolqj +rog 7lph qv w5 5&/.2 &orfn 5lvh 7lph wr qv w) 5&/.2 &orfn )doo 7lph wr qv w5'< 532651(*515= wr 5&/.2 5lvlqj 3ursdjdwlrq 'hod\ qv dc electrical characteristics 9 '' ' 9 '' $ '& 6xsso\ 9rowdjh 9 6xsso\ &xuuhqw p$ 9 ,/ ,qsxw /rz 9rowdjh 9 9 ,+ ,qsxw +ljk 9rowdjh 9 '' 9 '' ' 9 9 2/ 2xwsxw /rz 9rowdjh , 287 p$ *1'' 9 9 2+ 2xwsxw +ljk 9rowdjh , 287 p$ 9 '' ' 9 '' ' 9 , / ,qsxw /hdndjh &xuuhqw p $ 3lq ,qsxw 9 p $ & , ,qsxw &dsdflwdqfh s) & / /rdg &dsdflwdqfh s) notes : 1 whentheencoderis enabled,a handlingdelayof six tclk clockcyclesfor b3zs andseven clockcyclesfor hdb3 alwaysexists between tpda t a/tndat a andttip/tring. the handlingdelayis reduced tothreeandahalfcycleswhentheen coderis disabled. 2 whenthe decoder is enabled,a handlingdelayof six anda halfrclk clockcycleswill alwaysexist between rpdat a/rndat a andrpos/rneg. the handlingdelayis reducedto oneandhalfrclk clockcycles whenthe decoder is disabled. 3 supply currentis measured withtransmittersendingall ones ami signal andwitht ransmit level (txlev) set to high. 4 all inputs exceptpin 19, 20 andpin 26. specifications are subject to changewithout notice
XRT7298 5hy absolute maximumratings 3rzhu 6xsso\ wr 9 6wrudjh 7hpshudwxuh q &wr q & 9rowdjh $w $q\ 3lq 9 wr 9 '' 9 3rzhu 'lvvlsdwlrq 62- 3nj p: 3rzhu 'lvvlsdwlrq ',3 3nj : ,qsxw 9rowdjh $q\ 3lq 9 wr 9 '' 9 ,qsxw &xuuhqw $q\ 3lq p$ system description b3zs/hdb3 encoder 'dwd wr eh wudqvplwwhg lv lqsxw wr wkh hqfrghu eorfn wr eh hqfrghg hlwkhu lq %=6 ru +'% dv ghwhuplqhg e\ wkh vwdwh ri wkh '6676( slq ,qsxw gdwd irupdw fdq eh xqlsrodu ru elqdu\ )ru elqdu\ vljqdov 73'$7$ dqg 71'$7$ qhhg wr eh frqqhfwhg wrjhwkhu h[whuqdoo\ 7kh olqh frgh xvhg iru '6 lv %=6 ,q wklv prgh hdfk eorfn ri wkuhh frqvhfxwlyh ]hurv lv uhpryhg dqg uhsodfhg e\ rqh ri wzr frghv zklfk frqwdlq elsrodu ylrodwlrq 7khvh uhsodfhphqw frghv duh %9 dqg 9 zkhuh % lqglfdwhv d sxovh frqiruplqj zlwk wkh elsrodu uxoh dqg 9 uhsuhvhqwv d sxovh ylrodwlqj wkh uxoh 7kh fkrlfh ri wkhvh frghv lv pdgh vxfk wkdw dq rgg qxpehu ri % sxovhv zloo eh wudqvplwwhg ehwzhhq frqvhfxwlyh elsrodu ylrodwlrq 9 sxovhv )ru ( irupdw wkh olqh frgh lv +'% 7kh hqfrglqj uxoh ri +'% lv vlplodu wr %=6 h[fhsw wkh qxpehu ri frqvhfxwlyh ]hurv lv lqfuhdvhg wr irxu ehiruh d frgh uhsodfhphqw fdq wdnh sodfh 7kh uhsodfhphqw frghv lq wklv fdvh duh 9 dqg %9 676 rshudwlrq lv dfklhyhg e\ sodflqj wkh sduw lq wkh '6 prgh dqg xvlqj 0+] forfnv /rjlf rshudwlrq iru 676 lv wkh vdph iru '6 transmit all one select 6hwwlqj 7$26 kljk fdxvhv frqwlqxrxv $0, hqfrghg v wr eh wudqvplwwhg wr wkh olqh ,q wklv prgh lqsxw 73'$7$ dqg 71'$7$ duh ljqruhg ,i uhprwh orrs edfn 5/223 lv vhw kljk 7$26 uhtxhvw lv ljqruhg remote loop-back 6hwwlqj 5/223 kljk fdxvhv uhfhlyh 53'$7$ dqg 51'$7$ wr eh wudqvplwwhg wr wkh olqh wkurxjk 77,3 dqg 75,1* 7kh gdwd udwh lv ghwhuplqhg e\ 5&/. ,q wklv prgh 73'$7$ dqg 71'$7$ duh ljqruhg local loopback 6hwwlqj //223 kljk fdxvhv 73'$7$ dqg 71'$7$ wr jr wkurxjk erwk wkh hqfrghu dqg wkh ghfrghu ,q wklv prgh wkh wudqvplw vljqdo 5&/.2 5326 dqg 51(* fruuhvsrqgv wr 7&/. 73'$7$ dqg 71'$7$ uhvshfwlyho\ 8qohvv ryhuulghq e\ 7$26 uhtxhvw 73'$7$ dqg 71'$7$ zloo vwloo eh wudqvplwwhg wr wkh olqh 6hwwlqj 5/223 dqg //223 kljk vlpxowdqhrxvo\ lv qrw shuplwwhg b3zs/hdb3 decoder 7kh ghfrghu eorfn lv lqfoxghg wr shuirup %=6 ru +'% ghfrglqj dv ghwhuplqhg e\ wkh vwdwh ri wkh '6 676( slq ,q wkh %=6 irupdw wkh ghfrghu ghwhfwv erwk %9 dqg 9 sxovhv dqg uhsodfhv wkhp zlwk gdwd ,i +'% ghfrglqj lv vhohfwhg e\ vhwwlqj wkh '6 676( slq orz %9 dqg 9 sxovhv zloo eh ghwhfwhg dqg uhsodfhg zlwk frgh ,q erwk fdvhv elsrodu ylrodwlrq dqg frglqj huuruv zklfk gr qrw frqirup wr wkh frglqj vfkhph duh ghwhfwhg dqg lqglfdwhg dw wkh %39 rxwsxw slq decoder disable )ru whvwlqj sxusrvhv dqg lq dssolfdwlrqv zkhuh wkh ghfrghu qhhgv wr eh e\sdvvhg wkh ghfrghu fdq eh glvdeohg e\ vhwwlqj '(&2',6 kljk ,q wklv prgh doo elsrodu ylrodwlrq sxovhv duh lqglfdwhg dw wkh %39 slq bipolar violation 7kh %39 slq zloo jr kljk iru rqh elw shulrg zkhq d elsrodu ylrodwlrq qrw fruuhvsrqglqj wr wkh dssursuldwh frglqj uxoh ru d frgh huuru lv ghwhfwhg rq wkh 53'$7$51'$7$ 7kh ylrodwlrq sxovh lv dozd\v uhpryhg iurp wkh ghfrghu rxwsxw 5326 51(* zkhq '(&2',6 lv vhw orz
XRT7298 5hy pulse shaper 7kh sxovh vkdshu flufxlw xvhv d frpelqdwlrq ri ilowhuv dqg vohz udwh frqwuro whfkqltxhv wr suhvkdsh wkh sxovh jrlqj rxw wr wkh olqh 7kh dpsolwxgh ri wkh wudqvplw sxovh fdq eh dgmxvwhg xvlqj wkh 7;/(9 7udqvplw /hyho slq :khq wkh glvwdqfh wr wkh furvvfrqqhfw h[fhhgv iw 7;/(9 vkrxog eh vhw kljk :khq wkh glvwdqfh lv ohvv wkdq iw 7;/(9 vkrxog eh vhw orz 6hwwlqj 7;/(9 kljk hqdeohv wkh wudqvplwwhu wr vhqg rxw d qrplqdo yrowdjh ri 9 shdn dqg p9 shdn zkhq orz 7kh vwdwh ri 7;/(9 slq kdv qr hiihfw rq ( rshudwlrq driver monitor 8vlqj 77,3 dqg 75,1* dv lqsxw wkh gulyhu prqlwru ghwhfwv gulyhu idloxuh e\ prqlwrulqj wkh dfwlylwlhv dw 07,3 dqg 05,1* ,i qr vljqdo lv ghwhfwhg rq wkhvh slqv iru 7&/. f\fohv f\fohv '02 zloo eh vhw kljk xqwlo wkh qh[w $0, vljqdo lv ghwhfwhg 77,3 75,1* figure 2. t ransmit pulse amplitude t est circuit note : 1 t ransformer= pulse engineeringpe 65966, pe 65967 surfacemount,same t ransformerfor ds3, sts-1 and e3. parameter value 7xuq 5dwlr 3ulpdu\ ,qgxfwdqfh p + ,vrodwlrq 9rowdjh 9upv /hdndjh ,qgxfwdqfh p + t able1. t ransmit t ransformer characteristics
XRT7298 5hy ds3 signal requirements at the dsx )ru '6 rshudwlrq sxovh fkdudfwhulvwlfv duh vshflilhg dw wkh '6; zklfk lv dq lqwhufrqqhfwlrq dqg whvw srlqw uhihuuhg wr dv wkh furvvfrqqhfw 7kh furvvfrqqhfw h[lvwv dw wkh srlqw zkhuh wkh wudqvplwwhg vljqdo uhdfkhv wkh glvwulexwlrq iudph mdfn 7kh '6; lqwhufrqqhfwlrq vshflilfdwlrq wdeohv olvw wkh vljqdo uhtxluhphqwv table1) 7kh ;57 fdq wudqvplw wkurxjk ihhw ri $ fdeoh wr wkh '6; lq '6 prgh &xuuhqwo\ wzr lvrodwhg sxovh whpsodwh uhtxluhphqwv h[lvw wkh $16, 7 sxovh whpsodwh see t able3 andfigure 3 dqg wkh %hoofruh 751:7 sxovh whpsodwh 7kh sxovh wudqvplwwhg e\ wkh ;57 phhwv wkhvh whpsodwhv parameter specification /lqh 5dwh 0esv ssp /lqh &rgh %lsrodu zlwk wkuhh vxevwlwxwlrq %=6 7hvw /rdg : p 3xovh 6kdsh $q lvrodwhg sxovh pxvw ilw wkh whpsodwh lq figure 3 ru figure 4 7kh sxovh dpsolwxgh pd\ eh vfdohg e\ d frqvwdqw idfwru wr ilw wkh whpsodwh 7kh sxovh dpsolwxgh pxvw eh eh wzhhq 9sn dqg 9sn phdvxuhg dw wkh fhqwhu ri wkh sxovh 3rzhu /hyhov )ru dq doo v wudqvplwwhg sdwwhuq wkh srzhu dw 0+] pxvw eh wr g%p dqg wkh srzhu dw 0+] pxvw eh g%p wr g%p notes : 1 the pulse template proposedby g.703 standardsis shownin figure 4 andspecifiedin t able4 the proposed g.703 standards furtherstatethatthevoltage in atimeslot containing a0 must notexceed p 5% of thepeakpulse amplitude, except fortheresidue of preceding pulses. 2 the powerlevels specifiedbytheproposedg.703 standardsareidentical except thatthepoweris tobe measuredin 3khz bands. 3 the all 1s patternmust bea pureall 1s signal, withoutframingor othercontrolbits. t able2. dsx?3 interconnection specification lower curve upper curve t ime equation t ime equation 7 { 7 { { 7 { > vlq s > 7 @@ { 7 { > vlq s > 7@@ { 7 h 7 t able3. dsx-3 pulse t emplateboundaries for ansi t1.404 standards (see figure 3. ) lower curve upper curve t ime equation t ime equation { 7 { { 7 { { 7 { > vlq s > 7@@ { 7 { > vlq s > 7@@ { 7 { { 7 { h 7 t able4. dsx-3 pulse t emplateboundaries for bellcore tr-nwt -000499standards (see figure 4 )
XRT7298 5hy t ime slots-normalized to peak location figure 3. dsx-3 isolated pulse t emplatefor ansi t1.404 standards normalizedamplitudes sts-1 signal requirements )ru 676 rshudwlrq wkh furvvfrqqhfw lv uhihuuhg dw wkh 676; table5 olvwv wkh vljqdo uhtxluhphqwv dw wkh 676; ,qvwhdg ri wkh '6 lvrodwhg sxovh whpsodwh dq h\h gldjudp pdvn lv vshflilhg iru 676 rshudwlrq 7$76< 6hh figure 5 t ime slots-normalized to peak location figure 4. dsx-3 isolated pulse t emplatefor bellcore tr-nwt -000499 normalizedamplitudes parameter specification /lqh 5dwh 0esv /lqh &rgh %lsrodu zlwk wkuhh vxevwlwxwlrq %=6 7hvw /rdg : p 3rzhu /hyhov $ zlghedqg srzhu ohyho phdvxuhphqw dw wkh 676; lqwhuidfh xvlqj d orz sdvv ilowhu zlwk d g% fxwrii iuhtxhqf\ ri dw ohdvw 0+] lv zlwklq g%p dqg g%p t able5. stsx-1 interconnection specification ? ? ? ? ? figure 5. stsx-1 isolated pulse t emplatefor bellcore t a-tsy -000253 normalizedamplitude
XRT7298 5hy e3 signal requirements 7kh 7 lv ghvljqhg wr wudqvplw sxovhv wkdw frqirup wr &&,77 uhfrpphqgdwlrq * figure 6 vkrzv wkh ( sxovh pdvn uhtxluhphqw uhfrpphqghg lq * dqg table6 vkrzv wkh sxovh vshflilfdwlrqv figure 6. ccitt g.703 pulse mark at the 34,368-kbit/sinterface qv &&,77 qv 9 qv qv qv qv 1rplqdo sxovh parameter value 3xovh 6kdsh 1rplqdoo\ 5hfwdqjxodu $oo pdunv ri d ydolg vljqdo pxvw frq irup zlwk wkh pdvn see figure 6 luuhvshfwlyh ri wkh vljq 3dluv ,q (dfk 'luhfwlrq 2qh frd[ldo sdlu 7hvw /rdg ,pshgdqfh : uhvlvwlyh 1rplqdo 3hdn 9rowdjh ri d 0dun 3xovh 9 3hdn 9rowdjh ri d 6sdfh 1r 3xovh 9 9 1rplqdo 3xovh :lgwk qv 5dwlr ri wkh $psolwxghv ri 3rvlwlyh dqg 1hjdwlyh 3xovhv dw wkh &hqwhu ri d 3xovh ,qwhuydo wr 5dwlr ri wkh :lgwkv ri 3rvlwlyh dqg 1hjdwlyh 3xovhv dw wkh 1rplqdo +doi $psolwxgh wr t able6. e3 pulse specifications
XRT7298 5hy w5 w) 7&/. 73'$7$ 25 71'$7$ 77,3 25 75,1* w7'< w768 w7+2 w5 w) 5&/. 53'$7$ 25 51'$7$ w568 w5+2 w5 w) w5'< 5&/.2 532651(* figure 7. t iming diagrams for system interface
XRT7298 5hy 9 v 53'$7$ 51'$7$ 5326 51(* %39 %39 &ruuhvsrqglqj 7r &rglqj 5xoh %39 1rw &ruuhvsrqglqj 7r &rglqj 5xoh &rglqj (uuru note: the delayfromrpdat a/rndat a to rpos/rneg/rnrz is notshown here. figure 8. bipolar violation example for b3zs mode 9
XRT7298 5hy 5 . 9 && 9 && / 2 6 7 + 5 5 . 6 6: ',3 5/26 73 5/2/ 73 receiver monitor outputs 5/2/ 5/26 5 ,1 (;&/. 9 ' ' $ 9 ' ' & 9 ' ' ' *1'' *1'& *1'$ 5(4% 51'$7$ 53'$7$ 70& 70& /3) /3) /267+5 ,&7 & p ) 5 5 ,1387 6,*1$/ (;7(51$/ &/2&. % % 5 5 5 5 5 % 7&/. 3 *1' 9 ' ' $ 9 ' ' ' //223 5/223 '6676( 7$26 ,&7 7;/(9 (1&2',6 '(&2',6 5&/. 51'$7$ 53'$7$ '02 %39 71'$7$ 7&/. 73'$7$ *1'$ *1'' 07,3 05,1* 77,3 75,1* 5&/.2 5326 51(* 3//287 u2 XRT7298 51(* 5&/.2 5326 //223 5/223 7( 7$26 7;/(9 ,&7 (1&2',6 '(&2',6 receiver 6 6: ',3 outputs 5 5 7 3( % 75,1* 77,3 5 5 3//287 % 71'$7$ % 73'$7$ & p ) & p ) & p ) %7 )(55,7( %($' )(55,7( %($' )$,5 5,7( & p ) ( p ) 3 9 && 5; transmiter monitor outputs '02 %39 & p ) ( p ) & p ) 75$16)250(5 38/6( (1*,1((5,1* %7 )(55,7( %($' & p ) 3( 3( ,1 685)$&( 02817 9 && 7; u1 xrt7295 5&/. 3 figure 9. evaluation system schematic 5 ( 4 % , & 7
XRT7298 5hy 28 lead plastic dual-in-line (600 mil pdip) rev. 1.00 symbol min max min max inches $ $ $ % % & ' ( ( h %6& %6& h $ %6& %6& h % / d q q q q q q q q millimeters d b 1 a 1 e 1 e a l b seating plane d e c a 2 note: the controldimensionis theinchcolumn e b e a
x r t 7 2 9 8 1 5 r e v . 1 . 0 1 2 8 l e a d s m a l l o u t l i n e j l e a d ( 3 0 0 m i l j e d e c s o j ) r e v . 3 . 0 0 e d e h b a 1 s e a t i n g p l a n e 2 8 1 5 1 4 1 a 2 s y m b o l m i n m a x m i n m a x a 0 . 1 2 0 0 . 1 4 0 3 . 0 5 3 . 5 6 a 1 0 . 0 2 5 - - - - - - 0 . 6 4 - - - - - - a 2 0 . 0 9 0 0 . 1 1 5 2 . 2 9 2 . 9 2 b 0 . 0 1 4 0 . 0 2 0 0 . 3 6 0 . 5 1 c 0 . 0 0 8 0 . 0 1 3 0 . 2 0 0 . 3 0 d 0 . 6 9 7 0 . 7 1 2 1 7 . 7 0 1 8 . 0 8 e 0 . 2 9 2 0 . 3 0 0 7 . 4 2 7 . 6 2 e 1 0 . 2 6 2 0 . 2 7 2 6 . 6 5 6 . 9 1 e 0 . 0 5 0 b s c 1 . 2 7 b s c h 0 . 3 3 5 0 . 3 4 7 8 . 5 1 8 . 8 1 r 0 . 0 3 0 0 . 0 4 0 0 . 7 6 1 . 0 2 i n c h e s m i l l i m e t e r s n o t e : t h e c o n t r o l d i m e n s i o n i s t h e i n c h c o l u m n a c r e 1
XRT7298 5hy 127,&( (;$5 &rusrudwlrq uhvhuyhv wkh uljkw wr pdnh fkdqjhv wr wkh surgxfwv frqwdlqhg lq wklv sxeolfdwlrq lq rughu wr lp suryh ghvljq shuirupdqfh ru uholdelolw\ (;$5 &rusrudwlrq dvvxphv qr uhvsrqvlelolw\ iru wkh xvh ri dq\ flufxlwv gh vfulehg khuhlq frqyh\v qr olfhqvh xqghu dq\ sdwhqw ru rwkhu uljkw dqg pdnhv qr uhsuhvhqwdwlrq wkdw wkh flufxlwv duh iuhh ri sdwhqw lqiulqjhphqw &kduwv dqg vfkhgxohv frqwdlqhg khuh lq duh rqo\ iru looxvwudwlrq sxusrvhv dqg pd\ ydu\ ghshqglqj xsrq d xvhuv vshflilf dssolfdwlrq :kloh wkh lqirupdwlrq lq wklv sxeolfdwlrq kdv ehhq fduhixoo\ fkhfnhg qr uhvsrqvlelolw\ krzhyhu lv dvvxphg iru lqdffxudflhv (;$5 &rusrudwlrq grhv qrw uhfrpphqg wkh xvh ri dq\ ri lwv surgxfwv lq olih vxssruw dssolfdwlrqv zkhuh wkh idloxuh ru pdoixqfwlrq ri wkh surgxfw fdq uhdvrqdeo\ eh h[shfwhg wr fdxvh idloxuh ri wkh olih vxssruw v\vwhp ru wr vljqlilfdqwo\ diihfw lwv vdihw\ ru hiihfwlyhqhvv 3urgxfwv duh qrw dxwkrul]hg iru xvh lq vxfk dssolfdwlrqv xqohvv (;$5 &rusrudwlrq uhfhlyhv lq zulwlqj dvvxudqfhv wr lwv vdwlvidfwlrq wkdw d wkh ulvn ri lqmxu\ ru gdpdjh kdv ehhq plqlpl]hg e wkh xvhu dvvxphv doo vxfk ulvnv f srwhqwldo oldelolw\ ri (;$5 &rusrudwlrq lv dghtxdwho\ surwhfwhg xqghu wkh flufxp vwdqfhv &rs\uljkw (;$5 &rusrudwlrq 'dwdvkhhw $sulo 5hsurgxfwlrq lq sduw ru zkroh zlwkrxw wkh sulru zulwwhq frqvhqw ri (;$5 &rusrudwlrq lv surklelwhg

▲Up To Search▲

Price & Availability of XRT7298

	To Download XRT7298 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .