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v1.9 septembe r 2006 data sheet ag1170 +5 v / + 3 .3 v lo w po we r rin g in g slic silver t e l e c o m features ? a highly featured low power slic in a 14 pi n sil or 21 pi n dil format . ? integral hi gh effici ency dc/ dc converter. single +5v or +3.3v s u pply voltage. ? highl y integrated wit h an on-board ringing generat o r. ? tip/ring polarity reversal. on-hook transmission for caller line id. ? line and bala nce impedance progr a mmable with exter nal components (on ag1170-p ver s ion) ? easy to use, with a minimum number of external components. ? simplified protection in ?on-premise? applicati o ns. ? silver tel e co m ?de s i g n-in? a s si stan ce. pb pb descri ption the silver telecom ag1170 is a single subscriber line interface circuit (slic) in a 14 pin single in line (sil) or 21 pin dual in line (dil) format. t he combination of features and packaging offers extremely efficient use of board area, saving sig n ificant system size an d cost, minimising time to market for telephony systems de velopers. the ag1170 has been designed t o work with loop lengths of typically 3.0km (800 ? includ ing telephone). its perf o rmance to regulator y standards ( g 712) allows use in public an d private network applica t ions. the ag1170 has integ r al dc/dc converter and ringing generation thus providing all the line powering requirements from a single supply . the slic requires a minimum of external components. the system interface has been designed fo r direct conn ection to popular codecs, for both audio and si gnalling the ag1170 is ideal f o r low line count, short loop length application s , such as isdn terminal adaptors, in ternet telep hony (voip), computer telephony integration ( cti), wire less lo cal loops (wl l ) and small office home offic e (soh o). ? silver tele com 20 06
v1.9 september 20 06 ag1170 data sheet ? silver tele com 20 06 2 +5v / +3. 3 v low power ringing slic figure 1: dil variant packaging format a g 1170 a g 1170 - - d d 5 / 3. 3 l o w p o w e r r i n g i n g s l i c 5 / 3. 3 l o w p o w e r r i n g i n g s l i c si l v e r si l v e r t e l e c o m t e l e c o m a g 1170 a g 1170 - - d d 5 / 3. 3 l o w p o w e r r i n g i n g s l i c 5 / 3. 3 l o w p o w e r r i n g i n g s l i c si l v e r si l v e r t e l e c o m t e l e c o m s s i i l l v v e e r r t t e e l l e e c c o o m m a a g g 1 1 1 1 7 7 0 0 s s figure 2: sil variant packaging format part number imped a nce pack age suppl y voltage mar k ing ag 1 1 7 0 - d 5 60 0 o h m dil 5 vol t 5 ag 1 1 7 0 - s 5 60 0 o h m sil 5 vol t 5 ag 1 1 7 0 - d 3 60 0 o h m dil 3. 3 vol t 3 ag 1 1 7 0 - s 3 60 0 o h m sil 3. 3 vol t 3 a g11 70 p- d5 p r ogr ammab l e d i l 5 v o l t p5 a g11 70 p- s5 p r ogr ammab l e si l 5 v o l t p5 a g11 70 p- d3 p r ogr ammab l e d i l 3 . 3 v o l t p3 a g11 70 p- s3 p r ogr ammab l e si l 3 . 3 v o l t p3 table 1: ordering information and device marking* * all v e rsions of the ag1170 ar e rohs compliant. * industrial temperatur e r a nge v e rsions of th e a g1170 are av ailable. contact silv er telecom for further d e tails.
v1.9 september 20 06 ag1170 data sheet ? silver tele com 20 06 3 +5v / +3. 3 v low power ringing slic figure 3: functional block diagram f/ r rm shk v in v out ri ng ti p 2-4 wire con v er ter and li ne interfa ce v a gnd a li ne rev e rsal and ri ngi ng contr o l super v i s i on po w e r m a nageme nt and dc-dc conv er ter gnd pwr v pwr pd *z b * zt1 * zt2 * onl y used for th e a g 1170p dev i ce. do not connect f o r th e a g 1170 as t h e i m pedances are pr ogr a mmed to 600r i n te r n all y .
v1.9 september 20 06 data sheet ag1170 +5v / +3. 3 v low power ringing slic 1.0 pin description - dil package pin # name description 1 t i p ( a ) tip. connects to the subscriber line tip. 2 r i n g ( b ) ring. connects to the subscriber line ring. 3 i c internal c onnection. do not connect externally to this pin. 4 p d pow e r dow n of dc/dc conv e r ter . a logic 0 powers off the dc/dc converter. leave open circuit for free run operation. do not input logic 1 to this pin. 5 n c no connection. this pin is not connected internally. 6 n c no connection. this pin is not connected internally. 7 r m ringing mode. sets bias conditions during ringing. must be set to logic 1 during ringing. logic 0 for other modes. 8 g n d a analog ground. normally conn ected to system ground. 9 + v a analog suppl y . connect to the +5v or +3.3v supply via an rc filter, to supply power to the analog circuits. 1 0 * z t 2 line impe dance. connect to zt1 via impedance programming component s. 1 1 * z t 1 line impe dance. connect to zt2 via impedance programming component s. 1 2 * z b balance impedance. connect to vin via impedance programming components. 1 3 v in audio in. analog input signal from t he codec (which is output on tip and ring). connect via a 100nf capacit or. 1 4 n c no connection. this pin is not connected internally. 1 5 v ou t audio out. analog out put signal (from tip and ring) to the codec. connect via a 100nf capacitor. 1 6 f / r forw a rd/reverse. a logic 0 will reverse the tip and rin g voltage polarities. f/r is toggled to produce the ringing output. 1 7 s h k s w itch hook. indicates an off-hook condition when at logic 1. 1 8 g n d pwr dc/dc ground. ground input for the dc/dc converter. 1 9 + v pwr dc/dc su ppl y . +5v or +3.3v input fo r the dc/dc converter. 2 0 g n d pwr dc/dc ground. ground input for the dc/dc converter. 2 1 + v pwr dc/dc su ppl y . +5v or +3.3v input fo r the dc/dc converter. * onl y used for the ag11 70p devic e. do not conn ect for ag117 0 as imp e d ance is pr ogra mmed to 600 r interna l l y ? silver tele com 20 06 4
v1.9 september 20 06 data sheet ag1170 +5v / +3. 3 v low power ringing slic 1.1 pin descriptio n ? sil package pin # name description 1 r i n g ( b ) ring. connects to the subscriber line ring. 2 t i p ( a ) tip. connects to the subscriber line tip. 3 f / r forw a rd/reverse. a logic 0 will reverse the tip and rin g voltage polarities. f/r is toggled to produce the ringing output. 4 r m ringing mode. sets bias conditions during ringing. must be set to logic 1 during ringing. logic 0 for other modes. 5 s h k s w itch hook. indicates an off-hook condition when at logic 1. 6 * z t 1 line. connect to zt2 via impedance programming components. 7 * z t 2 line impe dance. connect to zt1 via impedance programming component s 8 * z b balance impedance. connect to vin via impedance programming components 9 v in audio in. analog input signal from the codec (which is output on tip and ring). connect via a 100nf capacit or 1 0 v ou t audio out. this is the analog output signal (from tip and ring) to the codec. connect via a 100nf capacit or. 1 1 + v a analog suppl y . connected to the +5v or +3.3v supply via an rc filter, to supply power to the analog circuits. 1 2 g n d pwr dc/dc ground. ground input for the dc/dc converter. 1 3 + v pwr dc/dc su ppl y . +5v or +3.3v input for the dc/dc converter. 1 4 p d pow e r dow n of dc/dc conv e r ter . a logic 0 powers off the dc/dc converter. leave open circuit for free run operation. do not input logic 1 to this pin. * onl y use d for the ag117 0p devic e. do not conn ect fo r ag117 0 as the imped ances a r e progr amme d to 600r i n ter nall y ? silver tele com 20 06 5
v1.9 september 20 06 data sheet ag1170 +5v / +3. 3 v low power ringing slic 2.0 line interfacing as well a s being u s e d in an ele c tri c ally demandi ng environ ment, the need s of di fferent application s and regul atory st anda rd s m e ans that the slic m u st be flexible, and have facilit ies to ensure robust perfo rman ce. the ag117 0 slic provi des a com p l e te and flexible in terface to the telepho ne lin e. 2.1 batter y feed the ag11 70 has a n integ r al dc/ dc co nverter, which gene rate s the battery voltage in the device. this mean s that only a sup p ly of +5v o r 3.3v is n eed ed, unlike conve n tional sli c s which will also ne ed a battery volta ge of anythi ng b e twe en -20v and -60v (-7 5v for ringi ng). thi s co nfers a signifi cant co st, spa c e and time to market benefit on the equi p m ent desi gne r. the batte ry feed to the t e leph one lin e is ge ne rat ed from the po sitive supply rail. this provides a -48 v battery feed to the line driver, whi c h is adj ust ed automatically to match line con d ition s . powe r efficie n cy is goo d, becau se the line is su ppli ed with o n ly as much po we r as i s n eed ed . little exce ss heat is gen erated, even on sho r t line s . t he loo p curre n t is pre - set to a consta nt 24ma, unde r the conditio n s sho w n in s e ction 9.3 of this data s h eet, whi c h spe c ifie s the ?dc ele c trical cha r a c t e risti cs? fo r the ag1170. 2.2 ringing the ringi ng signal i s gene rated by swit chin g the slic into ringin g mode, by setting the rm pin high, and the n toggling the f/r pin at t he re qui red freque ncy a n d cad e n c e. the toggling of the f/r pin pro d u c e s a balan ce d sig nal at tip and ri ng. these sig nal waveforms a r e sh own in figure 4. rin g ing voltage of approximatel y 65vrm s i s applie d to a single h and set . it is imp o rtant that the rm pin i s o n ly set hi gh d u ri ng ringin g and that this pin is set low at all other time s. applicatio ns note a n 11 70 -14 provide s advice on ho w to implement this req u irem ent. duri ng ring ing the i n tegral dc/dc convert e r automatically switch es to prod uce a ba ttery voltage of -72v. thi s will produce greater than 40vrm s into a ren of 3. the slope of the edg es on the ringin g waveform is s e t internally to give the c o rrec t waveform with 20 hz to 25hz rin g ing freque ncy. whe n an ?off-hoo k? con d ition o c curs du ring rin g ing, th e ring -trip circui t on the ag1 170 sen s e s the loop cu rre nt flowing a nd signal s the off-hoo k conditi on on the s h k output. the shk sign al must be ?de - boun ce d? (by the controlling processor) for 10m s to rem o ve any spuri ous pulses. t he dc/ dc co ntroller limit s th e po we r. th e ag1170 will operate continuou sly with a ring -trip lo a d . the ring -trip functio n wi ll ope rate u p to a l o o p resi stan ce of typically 800 r (in c lu ding t e leph one ). it is also g u a r ante ed not give a false rin g tri p with a loa d of 3 ren. 2.3 pow e r dow n and sy nchroni sation the dc/dc converte r can be switched off by applying a logic 0 to the pd input . the slic take s 50m s to power up fro m this po we red d o wn stat e. logi c outp u ts are not valid duri ng thi s t i me. wh en u s ing the power down functio n , it is re co mmend ed th at the slic is polled (p owered u p pe rio d ically) to che c k for shk (th e sub s crib er h a s go ne off-hoo k). if not in powe r do wn mode, the p d pin sho u ld be left open circuit. an op en- colle ctor gat e shoul d be used fo r a pplying th e pd sign al. nev e r conne ct a logic high to th e pd p i n. note: thi s i s a se nsitive node; kee p conne ction s v e ry s h ort. the dc/ dc has an i n ternal oscillator. if desi r ed, t he oscillator fre quen cy may be synchro n ise d with an external clo c k fo r emi re aso n s. to do this, a 12 8khz (+5v ) or 64 khz (+3.3v ) square wave (with 5 0 :50 m a rk spa c e ) shou ld be inputt ed to the pd pin. se e applicatio ns note: an11 7 0 -12, for fu rth e r detail s . 3.0 the 2-4 wire (h y b rid) conversion. the ag11 70 slic tran smits and re ceives bal an ced 2-wi re a nalog signal s at the tip and ri ng co nne ctio ns. these are co nverted to a grou nd refere nce d output at v ou t a nd from a groun d ref e ren c e d input at v in . the v ou t an d v in pins a r e no rmally con n e c ted to a cod e c fo r conversion of audio to a n d from a dig i tal pulse code modulate d (p cm) stre am. 3.1 transmit and receive gain. the gain i n both the tra n smit dire cti on (tip/ri n g to v ou t ) a nd the receive di re ction (v in to tip/ring) is s e t t o 0db. norma lly any gai n adju s tments requi re d by t he use r ca n be made by prog rammin g the cod e c. 3.2 the 2 wire impedance. the 2 wire i m peda nce at tip/ring of th e ag1 170 is set to 600r. it re quire s no ext e rnal p r o g ra mming re si stors. the 2 wi re impedan ce of the ag 1170 -p ca n be prog ram m ed to the req u ired value by con n e c ting comp one nts across pin s z t 1-zt 2. the imp eda n c e ratio for z t is 10 0. re sistors shoul d be multiplied by the ratio and capa citor val ues divid ed b y the ratio to obtain the re quire d prog ramming valu es. e.g. for 600 r impe dan ce, fit 60k resi stor (ne a rest value = 62k ). furthe r d e tails on th e p r og rammin g of th e ag117 0p are contai ned within applicatio ns note: an1 170-1. ? silver tele com 20 06 6
v1.9 september 20 06 data sheet ag1170 +5v / +3. 3 v low power ringing slic 3.3 netw ork balance impedance. the n e two r k balan ce i m pe dan ce zb of the ag11 70 i s set to 60 0r and it requi res n o extern al pro g rammi ng resi st o r s. to p r og ram m e the zb f o r the ag11 70p compo n ents are co nne cte d from th e v in pin to the z b pin. fo r zb = zt use a 1 0 0 k resi stor in serie s with a 4 7nf ca pa citor. furthe r d e tails on th e p r og rammin g of th e ag117 0p are contai ned within applicatio ns note: an1 170-1. 3.4 tip & ring polarity reversal. the ag11 70 can reverse t he battery vol t age pola r ity at tip and ri ng via the f/r pin. c o n d i t i o n 1 - d c op e r at i o n si g n a l no t e s in p u t r m 1 0 no r i n g i n g ou t p u t s h k 1 0 o f f ho o k de t e c t e d of f h o o k n o te: s h k s h o u l d b e d e - b o u nc e d f o r 10 m s c o n d it io n 2 - r in g i n g o n - h o o k rm 1 0 f/ r (i np ut ) 1 0 sh k 1 0 c o n d it io n 3 - r in g i n g / o ff - h o o k ab t h e p h o n e g o es o f f h o o k , an d s h k i s d e t ect ed at p o i n t a ( l ead i n g ed g e ) . r m m u s t b e s w i t ch ed l o w i n < 5 0 0 m s ( p oi nt b ) , a n d t h e r i ng i n g c a d e n c e s h o u l d be r e m o v e d fro m f / r . . a s l o ng a s t h e t e l e ph o n e i s of f ho ok , s h k w i l l r e m a i n hi gh . 1 se c 3 se c 1 se c 3 se c c o n d i t i o n 1 - d c op e r at i o n si g n a l no t e s in p u t r m 1 0 no r i n g i n g ou t p u t s h k 1 0 o f f ho o k de t e c t e d of f h o o k n o te: s h k s h o u l d b e d e - b o u nc e d f o r 10 m s c o n d it io n 2 - r in g i n g o n - h o o k rm 1 0 f/ r (i np ut ) 1 0 sh k 1 0 c o n d it io n 3 - r in g i n g / o ff - h o o k ab t h e p h o n e g o es o f f h o o k , an d s h k i s d e t ect ed at p o i n t a ( l ead i n g ed g e ) . r m m u s t b e s w i t ch ed l o w i n < 5 0 0 m s ( p oi nt b ) , a n d t h e r i ng i n g c a d e n c e s h o u l d be r e m o v e d fro m f / r . . a s l o ng a s t h e t e l e ph o n e i s of f ho ok , s h k w i l l r e m a i n hi gh . 1 se c 3 se c 1 se c 3 se c c o n d i t i o n 1 - d c op e r at i o n si g n a l no t e s in p u t r m 1 0 no r i n g i n g ou t p u t s h k 1 0 o f f ho o k de t e c t e d of f h o o k n o te: s h k s h o u l d b e d e - b o u nc e d f o r 10 m s c o n d it io n 2 - r in g i n g o n - h o o k rm 1 0 f/ r (i np ut ) 1 0 sh k 1 0 c o n d it io n 3 - r in g i n g / o ff - h o o k ab t h e p h o n e g o es o f f h o o k , an d s h k i s d e t ect ed at p o i n t a ( l ead i n g ed g e ) . r m m u s t b e s w i t ch ed l o w i n < 5 0 0 m s ( p oi nt b ) , a n d t h e r i ng i n g c a d e n c e s h o u l d be r e m o v e d fro m f / r . . a s l o ng a s t h e t e l e ph o n e i s of f ho ok , s h k w i l l r e m a i n hi gh . 1 se c 3 se c 1 se c 3 se c figure 4: ringing signal waveforms if f/r is held at logi c 1 (forward) the d. c. voltage at ti p is pos i tive with res p ec t to ring. if f/r is tak e n to logic 0 the voltage polarity is reversed. 3.5 on hook transmission. the ag1 170 i s capa ble of on-h o o k tra n s missio n. th is mean s anal o g sign als ca n be tran smi tted from vin throug h tip a nd ring a nd onto the line even whe n n o loop cu rre nt is flo w ing. this can be u s e d when sen d ing caller li ne id ent ification (cli) inform ation or for other ?no ring? calls. the ag117 0 will provid e on hook tran smissi on with a high impe dan ce on ti p/rin g or with ac load s do wn to 600 r. ? silver tele com 20 06 7
v1.9 september 20 06 data sheet ag1170 +5v / +3. 3 v low power ringing slic 4.0 s w itch hook detect level whe n the su bscrib er go e s ?off-ho ok? l oop cu rrent will begin to flow. if this current i s ab ove the d e tecti o n threshold (10 m a) the swit ch h o o k out put, shk, wi ll swit ch to a lo gic 1. it is re comm end ed t hat software or hard w a r e de -bou nci ng of the switch hoo k si gnal is use d . thi s is to avoid sho r t pul se s whi c h can ca use a false swit ch hoo k o u tp ut, triggeri n g the in corre c t sy st em r e s p o n se. duri ng loop disconnect dialling, shk will pul se betwe en lo gic 1 a nd lo gic 0 to indi cate the digits bei ng dialled. ag a i n it is re co mmend ed th at software de- boun cin g is u s ed to avoid f a lse d e tectio n of digits. +5 v / +3 .3 v c1 a g 1 170 f/ r sh k v ou t v in +v pw r gn d pwr rm t e l e c o m sil v er c2 + r2 +v a gn d pw r / gn d a c3 + c4 pd to m i c r o c ontr o l l e r t o c odec ti p ri n g d2 d3 d4 d5 ri n g ti p d1 c5 c6 to o t h e r ci r c u i t s t1 r1 h i g h i n p u t fo r p o w e r d o w n . l o w i n p u t fo r f r e e r u n +5 v / +3 .3 v c1 a g 1 170 f/ r sh k v ou t v in +v pw r gn d pwr rm t e l e c o m sil v er c2 + r2 +v a gn d pw r / gn d a c3 + c4 pd to m i c r o c ontr o l l e r t o c odec ti p ri n g d2 d3 d4 d5 ri n g ti p d1 c5 c6 to o t h e r ci r c u i t s t1 r1 h i g h i n p u t fo r p o w e r d o w n . l o w i n p u t fo r f r e e r u n components c1, c3, c5, c6 = 1 00nf c2 = 2 20uf, 10v, rubyco n zl (o r equi valent low esr) c4 = 1 00uf, 6.3v r2 = 1 0 r d1 = bzt 0 3 c 82 or p6ke8 2 (only one n eede d per lin e card) d2 ? 5 = 1 n 4 004 or mb4s bridg e r1 = 1 0 k t1 = bc8 46 figure 5: typical con n ection diagram 5.0 protection of the ag1170 slic 5.1 thermal protection should th e slic be ope ra ted incorre c tly, for exampl e by acci dental ly shorting ti p and rin g to each other or to groun d, the power di ssi pation is a u to matically limited by the dc/dc co nverte r this feature means that t he slic will alway s operate within its p o we r limits, without ov erhe ating. when operating o n very sh ort l i nes th e batt e ry voltage i s regul ated to a low val ue. this li mits the po wer dissipatio n a nd en su re s the ag11 70 o perate s with a minimum tem peratu r e ri se. ? silver tele com 20 06 8
v1.9 september 20 06 data sheet ag1170 +5v / +3. 3 v low power ringing slic 5.2 lightning and pow e r cross protection. it is usual fo r the ag11 70 to be u s e d i n ?o n-p r emi s e? appli c ation s , su ch a s so ho, cti and voip. in this ca se po we r cro s s an d lightning p r otectio n is not requi re d. in most ?off-premise? a pplication s , a sub s crib er ci rcuit will be req u ire d to with stand o v er voltage con d i t ions whi c h could be ca used by lightnin g or ove r h ead po wer cab l es stri king the telep hon e cabl es. it is therefore normal i n ?off-p r emi s e ? appli c ation s to provide prima r y and se co nd ary prote c tion ci rcuits to p r eve n t damage to the slic. the ag 117 0 has be en de sign ed to be able to u s e l o w co st protectio n co mpon ent s, a typical circuit i s sho w n in figure 5. this circui t is suitable for most ?o n- premi s e ? appl ication s . with som e addition al co mpone nts, the ag117 0 will meet ul 6095 0 req u irem en ts: a seri es e l ement shoul d be a dde d - a combi natio n of a fuse (e.g. 350m a, bussman c5 15 o r littlefuse 220 003 ) and a surge resi sto r (25 r typically). alternatively a t e ccor f1 250 t or f05 00t fu se may be u s ed witho u t a surge resi stor. for it u-t k20 po we r cross prot ection, a p t c thermi stor (e g. type jh3 3 0l) of 3 0 r i s suitabl e. t he lightning pro t ection i s pr ovided by steering dio d e s con n e c ted to 0v and up gradi ng d1 to a tra n zorb device (m otorola or stm 1.5 ke82a). for lightning an d ul6 095 0 po wer cro ss prote c tion, d1 sho u ld be upgrade d furt her (ge n e r al semico ndu ct or o r semitro n 5kp75). ju st one tra n zorb is nee ded p e r line c a r d. 6.0 approvals. it can be see n from the el ectri c al cha r acteri stics giv en on su bsequ e n t page s that the slic ha s been d e si gne d to meet th e equipm ent st anda rd s of a s m any m a j o r publi c teleph one auth o ritie s as p o ssibl e . it is the respo n sibility of the equipme n t desig n autho rity to ensu r e tha t their syste m meets the requi rem ents of the releva nt regulato r y bod ies. every effort is mad e to ensure th at silver tele com prod uct s are compli ant wit h the latest sta ndards. 7.0 a t y pical application. the ag1 170 has bee n d e sig ned to i n terface to a n y cod e c. appli c ation s d r a w ings fo r man y code cs an d dsp chip s are availa ble. please conta c t silver telecom or visit our we bsite www. sil v ertel.com. an example is sh own in figu re 5. the status o u tputs from t he slic are passe d to t h e micro-cont roll er. the s e sig nals can th en be processe d as ne ce ssary by the system softwa r e. the audi o si gnal s whi c h are on the 4 wire side of t he con n e c tion a r e co uple d by 100nf cap a citors to avoid d.c. level pro b lems b e twe en the two de vices. the ag1 170 provide s fo r a 2 wire imp edan ce and a netwo rk bal ance imp e d ance of 60 0 ? . fo r o t her impeda nces t he ag117 0-p can b e used. this can be prog ram m ed usi ng exte rn al compo nen ts (se c tion 3 . 2 and 3.3). 7.1 dc suppl y voltage duri ng op erat ion the dc supply voltage must be regul ated wit h in the limits sho w n in the electri c al cha r a c teri stics ? section 9. 0 of this data s he et. use of a ?cle an ? po wer su pply is e x tremely important. shoul d the v cc supp ly rail go abo ve the absolu te maximum rating of 5.5 v , for even a sho r t time, then perman e n t damag e to the ag1170 i s likely to re sult. we al so advi s e that the de sign er pe rforms a full system evalu a tion, unde r a ll possible pe rforman c e con d ition s , to ensu r e that the v cc maxi mum rating i s not excee ded . in som e a ppl ication s , a ddi tional emi su ppre s sion ma y be need ed. in this instan ce 3 capa cito rs ca n be add ed to filter o u t the hi ghe r freq uen cie s of the dc-dc conve r ter. see figure 6 fo r details. a g 1170 ti p ri n g zb v ou t 1n f 1n f 1 00pf a g 1170 a g 1170 ti p ri n g zb v ou t 1n f 1n f 1 00pf a g 1170 figure 6: optional e m i suppression ? silver tele com 20 06 9
v1.9 september 20 06 data sheet ag1170 +5v / +3. 3 v low power ringing slic 8.0 lay out considerations. pd is a se nsitive node. keep the tra c king as sho r t as possibl e. particularly if co nne cting a transi s tor to th is pin. 8.1 pow e r and ground 8.2 impedance figure 7 gives an exampl e of the tracking ne ede d for the ag11 70. tra c ks to th e +v pw r and gnd pw r s h ould be ma de a s thi ck as possibl e. to maximise the perfo rman ce of the device, signal t r a c ks shoul d be ke pt as sho r t as possibl e. a low im peda nce (e sr) cap a cito r mu st be used for c2. to red u ce dc/ dc n o ise zt1, zt2 an d zb are sen s itive node s. keep the tra c ks as short as poss ible. cap a cito rs u p to 10nf may be con n e c te d to groun d at tip and ri ng. 8 1 pi n n a m e s bo t t o m v i e w 7 9 ti p ( a ) r i ng ( b ) ic pd nc nc rm +v pw r +v pw r sh k v ou t v in zt1 +v a c odec to oth e r ci r c u i t r y 0. 1 u f , 25 v ( c 3 ) 10 0 u f , 6. 3 v ( c 4 ) 20 22 0u f , 1 0 v ( c 2 ) mu s t be l o w e s r 21 to o t he r ci r c u i t r y tr a c k s fo r + v pw r an d + v a , a nd fo r gn d pw r an d g n d a a r e j o in ed at t h e i n pu t s i de of t h e p o w e r f i l t e r . 10 r 0 0. 1 u f , 16 v ( c 1 ) gn d pw r gn d pw r f/ r zb zt2 gn d a pow e r fi l t er (r 1 ) 8 1 pi n n a m e s bo t t o m v i e w 7 9 ti p ( a ) r i ng ( b ) ic pd nc nc rm +v pw r +v pw r sh k v ou t v in zt1 +v a c odec to oth e r ci r c u i t r y 0. 1 u f , 25 v ( c 3 ) 10 0 u f , 6. 3 v ( c 4 ) 20 22 0u f , 1 0 v ( c 2 ) mu s t be l o w e s r 21 to o t he r ci r c u i t r y tr a c k s fo r + v pw r an d + v a , a nd fo r gn d pw r an d g n d a a r e j o in ed at t h e i n pu t s i de of t h e p o w e r f i l t e r . 10 r 0 0. 1 u f , 16 v ( c 1 ) gn d pw r gn d pw r f/ r zb zt2 gn d a pow e r fi l t er (r 1 ) fi g ure 7: t yp ical la y out ? silver tele com 20 06 10
v1.9 september 20 06 data sheet ag1170 +5v / +3. 3 v low power ringing slic 9.0 electrical characteristics. 9.1 absolute maximum ratings* all voltages are w i th respect to gr ound unless othe r w ise stated. p a r a m e t e r s y m b o l m i n m a x u n i t s 1 dc supply voltage v cc - 0 . 3 5 . 5 v 2 max i mum power dissipation, off hook @ 25 o c p slic 1 . 2 w 3 s t o r a g e t e m p e r a t u r e t s - 4 0 + 1 0 0 o c 4 duty cycle for rm(h) 33 % *exceeding the a bove ratings ma y cause permane nt damage to t h e product. fu nctional operation u nder these condit i ons is not imp lied. maximum ratings assume free air flow . 9.2 recommended operating conditions* all voltages are w i th respect to gr ound unless othe r w ise stated. p a r a m e t e r s y m b o l m i n ty p m a x u n i t s 1 dc supply voltage (5v version) v cc 4 . 7 5 5 . 0 5 . 2 5 v 2 dc supply voltage (3.3v version) v cc 3 . 1 0 3 . 3 0 3 . 5 0 v 3 operating temperature t op 0 2 5 7 0 o c *t y p ical figures a r e at 25 c w i t h n o minal +5v/+3.3v supplies and are for d e sign use onl y . the y a r e n o t guarant eed it is important tha t the user pe rfor ms a full sy stem evaluat ion, under all possible perf o rmance conditions, to ensure tha t the vcc ma x i m u m rati n g is not exce eded. ? silver tele com 20 06 11
v1.9 september 20 06 data sheet ag1170 +5v / +3. 3 v low power ringing slic 9.3 dc electrical characteristics. dc characteristic sy m min t y p* max u nits test comments 1 supply current, on- hook ag1170-5 ag1170-3 i sup 90 110 ma ma 2 supply current ringing 1 ren ag1170-5 ag1170-3 i ringin g 300 500 ma ma r loop = 0r load = 1 ren 3 supply current, off-hook ag1170-5 ag1170-3 i active 160 260 ma ma r loop =0r load = 300r 4 supply current during ring trip (<1 sec ma x) ag1170-5 ag1170-3 420 600 ma ma r loop =0r load = 300r 5 supply current in power down i pd 5 m a 6 w a k e - u p t i m e 5 0 m s logic outputs not valid during wake-up period 7 constant current feed to line ag1170-5 ag1170-3 i loop 21.5 21.5 24 24 26.5 26.5 ma ma r loop =170 r (1km) load = 300r 8 tip/gnd or ring/gnd or tip&ring/gnd overcurrent 35.0 45.0 ma ma rm = l rm = h 9 off-hook detect; ag1170 3.3v output low voltage output high voltage v ol v oh 2.7 0.2 v v 10 off-hook detect; ag1170 5v output low voltage output high voltage v ol v oh 4.4 0.2 v v 10ua max o u tput (with 62k int e rnal pull-up resistor). fit external pull-up for higher o u tput current v il v ih 2.1 0.9 v v ag1170 - 3.3v versions 11 control inputs, f/r, pd, rm input low voltage input high voltage v il v ih 3.5 1.5 v v ag1170 - 5v versions 12 control inputs, f/r, pd, rm input low cu rrent input high current i il i ih -0.5 -0.5 0.5 0.5 ma ma 13 switch hoo k detect threshold 7 . 0 10.0 13.0 m a 14 load on v ou t 1 0 . 0 k o h m 1 0 0 n f c o u p l i n g 1) all dc electrical charac teristics are over the re commended ope r ating conditions w i th v cc at +5. 0 v + 5%,or +3. 3 v + 5%, unless other w i se stated. 2) op erating cur r ents are depe nd ent on the users application. *t y p ical figures a r e at 25 c w i th n o minal 5v supply and are fo r desi gn aid onl y . no t guar anteed ? silver tele com 20 06 12
v1.9 september 20 06 data sheet ag1170 +5v / +3. 3 v low power ringing slic 9.4 ac electrical characteristics. ac characteristic sy m m i n t y p* max u n i t s t e s t c o m m e n t s 1 shk detec t time 5 . 0 ms no rin ging 2 ring trip capability 5 0 0 8 0 0 ohm includes telephone handset 3 input impedance at v in 1 0 0 kohm 4 output impedance at v ou t 1 0 ohm 5 ringing capability 40v rms into ren=3 5 0 0 ohm 6 r i n g i n g v o l t a g e 6 5 vrms no load 7 absolute voltage gain, 2 wire to v out - 0 . 5 0 0 . 5 db off-hook 8 absolute voltage gain v in to 2wire - 0 . 5 0 0 . 5 db off-hook 9 relative gain. referenced to 1khz. 2wire - v out , v in - 2 w ire -0.25 0 . 2 5 db over frequency range 300 to 3400 hz 10 total harmonic distortion @ 2wire and v ou t thd 0 . 1 1 . 0 % @0dbm, 1khz 11 overload distortion @2 wire and v out od 0 . 5 5 . 0 % @+3dbm, 1khz 12 common mode rejectio n ratio cmrr 4 0 4 6 db 300-3400hz, at 2 wire 13 idle channel nois e n c 2 . 0 12.0 dbrnc @2 wire & v out 14 power sup p ly rejection ratio at 2 wire and v ou t psrr 2 5 3 2 db ripp l e 0.1v, 1khz on v cc 1 5 r e t u r n l o s s rl 1 8 3 5 db 300-3400hz 16 transhybrid loss thl 18 21 35 35 db db 300-3400hz 500-2500hz 17 load on vout 10.0 kohm cou p li ng capac itor = 100nf 18 longitud i n a l to metallic balance 40 46 43 53 db 300-600hz 600-3400hz 19 tip-ring reversal settling time 5 0 ms to within + 20% of set i loop 3) all ac electrical charac teristics are over the re commended ope r ating conditions w i th v cc at +5.0 v + 5%, unless other w i se stated. 4) gain, transh y brid loss and t o tal harmonic dist ortion paramet ers measured w i t h 600r te rmination. *t y p ical figures a r e at 25 c w i th n o mi nal 5v supply and are fo r desi gn aid onl y . ? silver tele com 20 06 13
v1.9 september 20 06 data sheet ag1170 +5v / +3. 3 v low power ringing slic 10.0 ag1170-d dil package 4.0 19.0 (m a x ) 51.0 ( m a x ) 2.0 0.1 42.0 2.0 0 .1 12.0 (m a x ) 8 20 1 botto m vie w 7 9 21 8 20 1 pin na mes botto m vie w 7 9 21 tip ( a ) ring ( b ) ic pd nc nc rm v pwr v pwr shk v out v in * zt1 v a gnd pwr gnd pwr fr nc *z b * zt2 gnd a 3.5 si lv er t elec om r ec om mends the use of 2mm s o c k e ts, es pec ially on pr ototy pe a n d pr e- pr oduc tion boar d s . rec o mmended pcb ho le d i a meter = 0.9 0 .05 mm * o nly u s ed for t he a g11 70p d evi c e. d o n o t c o nne ct f or th e a g117 0 a s th e im pe dan ce s ar e pro g ram m ed to 600r i nt erna lly. d i m ensi ons are i n m m and are no m ina l u nle ss oth e rw is e st at ed 0.5 0.05 0.5 0.05 4.0 19.0 (m a x ) 51.0 ( m a x ) 2.0 0.1 42.0 2.0 0 .1 12.0 (m a x ) 8 20 1 botto m vie w 7 9 21 8 20 1 pin na mes botto m vie w 7 9 21 tip ( a ) ring ( b ) ic pd nc nc rm v pwr v pwr shk v out v in * zt1 v a gnd pwr gnd pwr fr nc *z b * zt2 gnd a 3.5 si lv er t elec om r ec om mends the use of 2mm s o c k e ts, es pec ially on pr ototy pe a n d pr e- pr oduc tion boar d s . rec o mmended pcb ho le d i a meter = 0.9 0 .05 mm * o nly u s ed for t he a g11 70p d evi c e. d o n o t c o nne ct f or th e a g117 0 a s th e im pe dan ce s ar e pro g ram m ed to 600r i nt erna lly. d i m ensi ons are i n m m and are no m ina l u nle ss oth e rw is e st at ed 0.5 0.05 0.5 0.05 ? silver tele com 20 06 14
v1.9 september 20 06 data sheet ag1170 +5v / +3. 3 v low power ringing slic 11.0 ag1170-s sil package 12.0 61 3.0 0.6 0.05 2.54 0.25 12.7 0.25 1.27 ag 1170s ag 1170s 1 0.6 0.05 12.0 m a x 6.5 d i m e ns i o ns ( i n m m ) a r e no m i na l u n l e s s o t he r w i s e s t a t e d 12.0 61 3.0 0.6 0.05 2.54 0.25 12.7 0.25 1.27 ag 1170s ag 1170s ag 1170s ag 1170s 1 0.6 0.05 12.0 m a x 6.5 d i m e ns i o ns ( i n m m ) a r e no m i na l u n l e s s o t he r w i s e s t a t e d ag 1170s ag 1170s ti p ( a ) f/ r rm sh k *z t 1 *z t 2 *z b v in v ou t +v a gn d p w r vpw r pd *o n l y u s ed f o r t h e a g11 70p dev i c e . t h ese p i n s a r e ? i nt e r n a l c onn e c t ? f o r t h e a g11 70 ( a s t h e i m pe dan ces a r e p r ogr a m m ed t o 6 00r in t e r n a l l y ) . pi n 1 r i n g ( b ) ag 1170s ag 1170s ag 1170s ag 1170s ti p ( a ) f/ r rm sh k *z t 1 *z t 2 *z b v in v ou t +v a gn d p w r vpw r pd *o n l y u s ed f o r t h e a g11 70p dev i c e . t h ese p i n s a r e ? i nt e r n a l c onn e c t ? f o r t h e a g11 70 ( a s t h e i m pe dan ces a r e p r ogr a m m ed t o 6 00r in t e r n a l l y ) . pi n 1 r i n g ( b ) silver teleco m recomme nds the u s e o f 2.54mm so ckets, e s pe cial ly on prototype and pre prod uction b oards. re comm end ed pcb hole diamete r = 1. 1 0.05 mm ? silver tele com 20 06 15

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