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v1-4 feb r ua r y 2 005 data sheet AG2410 high performance quad trunk ? silver tele com 20 05 silver t e l e c o m features ? 4 highly featured trunks (coic, fxo) in a single module. ? magnetic isolation pr oviding high common mode rejection (cmrr) for use in un-grounded systems. ? highly integrated with on board loop switch and integral diode bridge. ? loop start operati on with on-hoo k reception and reversal detect (for calle r line id and remo te me tering). ? ringing detection and loop curren t detection. ? meets requirements of en60950/ul1950, and fcc pt68. ? minimum number of external co mponents, single +5v system side power supply. ? programmable d.c. mask. ? silver telecom ?design-in? assistance. v in 1 v ou t 1 v in 2 v ou t 2 v in 3 v ou t 3 v in 4 v ou t 4 ti p 1 ri ng 1 ti p 2 ti p 3 ti p 4 ri ng 2 ri ng 3 ri ng 4 tr u n k 1 c o nt r o l and su p e r v i s io n tr u n k 2 tr u n k 3 tr u n k 4 descri ption each c i rcuit requires a minimum of external component s and has been spec ified for ease of use, to reduce time to market. the silver telecom AG2410 comprises four indiv i dual trunk circ u its in a s i ngle module. the combination of features and packaging offers extremely effic i ent use of board area, saving significantly on system size and cost. the system interface has been designed for direct connection to popular codecs of bot h the audio a nd signalling connections. the AG2410 has been designed to work with 600r line impedance and meets international safety and regulatory requirement s. the AG2410 is des i gned for applications where ther e is a high level of common mode interference, such as pabx, long loop applications and systems without a ground. in addition to the features shown above the AG2410 allows flexible programming of many functions, including the dc voltage mask.
v1.4 februa ry 2005 data sheet ? silver tele com 20 05 page 2 AG2410 high per f ormanc e quad trun k a g 2410 ag 2410 q u a d t r u n k q u a d t r u n k si l v e r si l v e r t e l e c o m t e l e c o m figure 1: packaging format o r d e r i n g i n f o r m a t i o n AG2410 high performance quad trunk 2- 4 w i r e co n v e r t e r s u p e r v is io n po w e r m a na ge m e nt v cc gn d ti p 1 ri n g 1 v in 1 rs 1 v ou t 1 v ou t 2 v in 2 ti p 2 ri n g 2 ti p 3 ri n g 3 ti p 4 ri n g 4 tr un k 1 tr un k 2 tr un k 3 tr un k 4 v ou t 3 v in 3 v ou t 4 v in 4 li ne te r m i n a t i o n & loo p sw i t c h ls c 1 rs 2 lc 2 ls c 2 rs 3 lc 3 ls c 3 lc 4 ls c 4 rs 4 dm a 1 dm b 1 z b2 z b1 z b3 z b4 lc 1 dm a 2 dm b 2 dm a 3 dm b 3 dm a 4 dm b 4 v re f 1 v re f 2 v re f 3 v re f 4 fi g ure 2: block dia g ram
v1.4 februa ry 2005 data sheet AG2410 high per f ormanc e quad trun k 1.0 pin description pin # a b c d n a m e d e s c r i p t i o n 1 8 1 5 2 2 tip (a) tip. connects to the subscriber line tip. 2 9 1 6 2 3 ring (b) ring. connects to the subscriber line ring. 3 1 0 1 7 2 4 nc no connect. this pin can be left open circuit . 4 1 1 1 8 2 5 nc no connect. this pin can be left open circuit . 5 1 2 1 9 2 6 dma dc mask a. a resistor is connected between this pin and dmb to adjust the d.c. charac teristics of the termination. 6 1 3 2 0 2 7 dmb dc mask b. a resistor is connected between this pin and dma to adjust the d.c. charac teristics of the termination. 7 1 4 2 1 2 8 nc no connect. this pin can be left open circuit . 7 1 5 7 4 3 2 9 gnd analog ground. normally connected to system ground. all four pins must be connected to analog ground. 7 2 5 8 4 4 3 0 v cc +5v supply . all four pins must be connected to +5v. 7 3 5 9 4 5 3 1 nc no connect. this pin can be left open circuit . 7 4 6 0 4 6 3 2 nc no connect. this pin can be left open circuit . 7 5 6 1 4 7 3 3 z b balance n e tw ork. the network balance matching component s are connected between this pin, v in and gnd. 7 6 6 2 4 8 3 4 v in audio in. this is the analog input signal from the codec (which is output on tip and ring). connected via a 100nf capacitor. 7 7 6 3 4 9 3 5 nc no connect. this pin can be left open circuit . 7 8 6 4 5 0 3 6 v ou t audio out. this is the analog output signal (from tip and ring) to the codec. connec ted via a 100nf capacitor. 7 9 6 5 5 1 3 7 nc no connect. this pin can be left open circuit . 8 0 6 6 5 2 3 8 lc loop current. a logic 1 indicates that loop current is flowing. 8 1 6 7 5 3 3 9 lsc loop s w itch control. applying a logic 1 closes the integral loop switch. 8 2 6 8 5 4 4 0 rs ringing signal. a logic 0 indic a tes the presence of ringing voltage on the telephone line. toggles at twice the ringing frequency. also rs indicates whether the line polarity has reversed with a pulse. 8 3 6 9 5 5 4 1 nc no connect. this pin can be left open circuit . 8 4 7 0 5 6 4 2 v ref analog reference. bias voltage for analog c i rcuitry. must be de-coupled with 100uf. ? silver tele com 20 05 page 3
v1.4 februa ry 2005 data sheet AG2410 high per f ormanc e quad trun k 2.0 line interfacing the line i n te rface s o n th e ag241 0 p r ovide a flexi b le and rob u st i n terface to t he tele phon e line. t hey are desi gne d to meet regul atory stand ard s whilst providing a spa c e a nd power efficie n t solution. 2.1 d.c. termination. any equipm ent termin ating a tele ph one lin e mu st pre s ent the corre c t d.c. resi stan ce to the line. th is ensure s that the co rre ct curre n t flows to be able to detect the off hook con d ition, avoids e x cessive po wer dissipatio n in the subscrib er line inte rface (slic) a nd the subscri b er?s equip m e n t and minim i se s the si ze of power supply neede d to dri v e the slic. the ag24 1 0 has be e n desig ned to meet the requi rem ents of many net work o p e r ato r s. thi s i s do ne by makin g th e d.c. charact e risti c adj ust able. the s e are controlled by con n e c ting th e dm pin s o n the line sid e of the circuit. table 1 sho w s how the s e a r e con n e c ted. table 1 set up of the dm pins m a r k e t d m a d m b north america (eia 464, resistive) connect together through 270k resistor europe (ctr21) connect together through 470k resistor far east connect together through 270k resistor 2.2 signalling and loop status. the ag24 10 provide s fa cil i ties to monit o r an d co ntrol the telephon e line. this allows the de vice to be used with a vari ety of loop signall i ng sch e me s and mini mise s the num ber of externa l com pon ent s ne ede d t o impleme n t a compl e te line interface. 2.2.1 the on-board loop s w itch the ag 241 0 impleme n ts t he lo op sta r t protocol wh en initiating and answeri ng a call. this means that a swit ch mu st be cl osed to allow lo op curre n t to flow, sign alling to the slic that the terminating equipm e n t has go ne ?of f -hoo k?. thi s h a s be en done hi stori c ally by a relay. the ag241 0 use s an i n tegral o p tically isolate d swit ch to d o thi s , eliminating th e ne ed fo r a n external relay , so spa c e a n d co st is save d for the user. the on-b oard lo op s w itch is controlle d by th e ls c pin. a logic 1 applied to the pin clo s e s the loop switch. this is d one whe n the terminating eq ui pment wi she s to begin a call or in re spo n se to th e rece ption of t he ringin g si gnal . the lsc pin can be controlle d by the output drive pins of a cod e c o r from a micro controll er device. once the lo op switch h a s bee n clo s ed confi r mati on that loop current is flowi n g is provided by the lc pi n. this can be use d for fault detectio n an d for call cl e a r detectio n . 2.2.2 ringing detection and sensitivit y . the te rmin al equipm ent m u st b e ca pab le of dete c tin g and re sp ondi ng to an in co ming call in t he sam e way as a telepho ne set. the termination circuitry m u st, therefo r e, det ect the prese n ce of the rin g ing si gnal. the ag241 0 provide s an output, rs, whi c h indi cat e s the pre s e n ce of ringing by switching fro m a logic 1 t o logic 0. th e rs outp u t wil l toggle at twi c e th e ri ngin g freque ncy. a cap a cito r to grou nd can a l so b e add ed if ringin g cade nce i s ne ed ed rath er th an the rin g i ng freque ncy. the se nsitivity to ringing is set internally to 20vrms. 2.2.3 reversal detect the ringi ng detect ci rcuit will also detect dc pol arity reversal at ti p/ring. since this is a c cou p led o n ly a pulse output (15ms min.) is given at the rs output at the instant of reversal. an example of this type of signalling is i n caller line id in the unite d kingd om, wh ere a battery pol arity reversal p r e c ede s the tran smissio n of d a ta before the ringin g sig nal is applie d to the line. there m u st be g r e a ter th an 3 0 v a c ro ss tip an d ring for reversal detect to functi on co rrectl y. this mea n s that there is n o detectio n when off-ho ok. 3.0 the 2-4 wire (hy b rid) conversion. each circuit on the ag 2410 modul e tran smits and receives bala n ce d 2-wire a nalog sign als at the tip an d ring con n e c tions. the s e are conve r ted to a gro u n d referen c ed output at v ou t a nd from a gro u nd referen c ed si gnal at v in . v ou t and v in are n o rm ally con n e c ted to a co de c (vi a d.c. blo cki ng cap a cito rs) fo r co nversio n to and fro m a pulse code modulate d (p cm) stre am. 3.1 transmit and receive gain. the gain in b o th the transmit and re cei v e directio ns is set at 0db. any gain adj ustment s ca n be made u s i ng the code c fu nction ality. t h is is eithe r by hard w are or softwa r e de p endin g upon t he co de c used. ? silver tele com 20 05 page 4
v1.4 februa ry 2005 data sheet AG2410 high per f ormanc e quad trun k example 2- w i re impedance net w o r k balanc e impedance z b a l 1 z b a l 2 z b a l 3 c 3 n o t e s 1 600 ? 6 0 0 ? 5 1 k 3 6 k 0 ? 47pf far ea st, middle east 2 600 ? at&t compromi se 3 3 k 3 3 k 1 5 k 2700 pf north ame r i c a 3 o t h e r o t h e r 5 1 k 3 6 k 0 ? 47pf program imp edan ce u s in g ?intelligent? codec (e.g. sicofi or qsla c) table 2: line and network balance impedance examples 3.2 the 2 wire impedance 3.3 netw ork b a lance impedance the setting of the netwo rk balan ce can be don e by prog ram m ing of the cod e c, usin g the . c ir file, or it can be don e by hard w a r e com pone nts. the in put i m peda nce, z in , of ea ch circuit i s set internally to 600 r. to provide othe r impeda nces, use a cod e c whe r e the internal filter cha r a c te ristics can be prog ram m ed to provide th e corre c t mat c hin g . in ord e r to gene rate t he filter coeffi cient s a m o d e l of the ag 2 410 must be u s e d . this file, in .cir format is available on requ est fro m silver telecom or one of our rep r e s entativ es. if the ha rd wa re te ch nique is u s e d a net work mu st b e con n e c ted be tween z b an d v in . common example s a r e sho w n in ta b l e 2. 3.4 on-hook reception full details o n how the co dec i s progra mmed mu st be obtaine d from the code c m anufa c ture r. the nee d to provide the fa cility for data excha nge for 600 ? ap plic ation : r1 = 270k zbal1 = 51k zbal2 = 36k zbal3 = 0 ? c1, c2, c4 = 10 0nf c3 = 47pf c5 = 10uf, 6.3v c6 ? 100u f, 6.3 v ptc = tr6 00-15 0 th yri s tor = tvb2 70sa z bal3 c6 + re f + c5 c4 th y r i s tor ptc gnd z bal2 c3 gnd codec silver v t e l e c o m gnd gnd z b cc v dma tip ring lsc lc rs out in v AG2410 (1 channel) dmb v protection netw ork c2 c1 z bal1 r1 +5 v fi g ure 3: a sin g le channel show in g im p edance and pr otection com p onents ? silver tele com 20 05 page 5
v1.4 februa ry 2005 data sheet AG2410 high per f ormanc e quad trun k by the ag241 0 the devi c e prote c tion i s depe ndent u p on regul atory standa rd s in the market in whi c h th e equipm ent is deployed. some exam ples a r e giv en belo w , but these a r e not e x haustive. on-hoo k is becoming in crea singly co mmon, whet her for caller line i.d. or for te le me tr y pu r p os es . t h e AG2410 can receive sig nals o n -ho o k , pre s e n ting a high im ped a n ce to the li ne, i.e. whil e dra w in g a v e ry small current (5 a approx) from the line. 4.1 fcc pt 68 requirements. 3.5 ringer load netw orks to with stand the fcc pt 68 longitu din a l voltage su rge of 1500v no prote c tion is req u ire d a s the ba rrie r will withsta nd 15 00v pea k voltage to gnd. the ?d ummy ringe r? i s u s ually a cap a citive/re s isti ve load which is conn ecte d a c ro ss tip/ring. du rin g a call it is of su fficiently high impeda nce not to affect t he operation of the interfa c e. the d u mmy ringe r is integral to t he ag24 10, and is suita b le for ctr21 (euro p e ) , usa and asia. to withstand the fcc pt 68 metallic surges at 800v requi re s a 1 30v ac vari stor (whi ch clamps at 30 0v whi c h i s the rating of th e loop switch tran si stor). a 14mm device should be used to wit h stan d the t w o 100a 10/56 0 u s surg es. for othe r du mmy ringe r requireme nts not cove red i n this data s he e t, please con t act silver te lecom, o r the i r lo c a l re pr es en ta tive . examples of suitabl e devices are:- joyin jvr-1 4 n2 01k; wals in vz14d201kbs 4.0 device pr otection. note: if varistors to gro und are used for adde d prote c tion (e. g . more than 1500v may be see n in the as with many of the requirements whi c h must be met c1 4 a g 2410 qu a d tr u n k ci r c u i t dm a 1 dm b 1 dm a 2 dm b 2 dm a 3 dm b 3 dm a 4 dm b 4 ti p 2 ri n g 2 ti p 3 ri n g 3 ti p 4 ri n g 4 ti p 1 ri n g 1 0v r1 r2 r4 am d qs l a c co de c p r o c e sso r in t e r f a c e v cc f o r 600r l i n e an d b a l a n c e i m p e d a n c e : r 1 - 4 = 2 70k ( a s r e qui r e d b y t h e q s la c ) r 5 - r 8 = 5 1 k r 9 - 12 = 0 ? r 13- 16 = 36k c 1 - 8 , c 13 = 100 n f c 9 - 12 = 4 7 p f c 14 = 10u f c 15- c 18 = 100 u f p r ot e c t i o n c i r c u i t de pe n d s up on pr e c i s e a ppl i c a t i o n 5v c7 c8 z b4 v in 4 v ou t 4 rs 4 ls c 4 r1 2 vo u t 4 vi n 4 cd 1 4 c3 4 c1 3 r1 6 c1 c2 z b1 v in 1 v ou t 1 rs 1 ls c 1 vo u t 1 vi n 1 cd 1 1 c3 1 0v c3 c4 z b2 v in 2 v ou t 2 rs 2 ls c 2 r6 vo u t 2 vi n 2 cd 1 2 c3 2 c1 0 r1 4 c5 c6 z b3 v in 3 v ou t 3 rs 3 ls c 3 r7 vo u t 3 vi n 3 cd 1 3 c3 3 c1 1 gn d + t e l e c o m s ilv e r v re f 1 p r o t e c ti on c i r c ui t + p r o t e c ti on c i r c ui t p r o t e c ti on c i r c ui t p r o t e c ti on c i r c ui t v re f 2 r3 v re f 3 v re f 4 0v c1 5 0v c1 6 0v c1 7 0v c1 8 0v 0v 0v c9 r1 3 r5 r9 r1 0 r1 1 r1 5 r6 c1 2 + + + c1 4 a g 2410 qu a d tr u n k ci r c u i t dm a 1 dm b 1 dm a 2 dm b 2 dm a 3 dm b 3 dm a 4 dm b 4 ti p 2 ri n g 2 ti p 3 ri n g 3 ti p 4 ri n g 4 ti p 1 ri n g 1 0v r1 r2 r4 am d qs l a c co de c p r o c e sso r in t e r f a c e v cc f o r 600r l i n e an d b a l a n c e i m p e d a n c e : r 1 - 4 = 2 70k ( a s r e qui r e d b y t h e q s la c ) r 5 - r 8 = 5 1 k r 9 - 12 = 0 ? r 13- 16 = 36k c 1 - 8 , c 13 = 100 n f c 9 - 12 = 4 7 p f c 14 = 10u f c 15- c 18 = 100 u f p r ot e c t i o n c i r c u i t de pe n d s up on pr e c i s e a ppl i c a t i o n 5v c7 c8 z b4 v in 4 v ou t 4 rs 4 ls c 4 r1 2 vo u t 4 vi n 4 cd 1 4 c3 4 c1 3 r1 6 c1 c2 z b1 v in 1 v ou t 1 rs 1 ls c 1 vo u t 1 vi n 1 cd 1 1 c3 1 0v c3 c4 z b2 v in 2 v ou t 2 rs 2 ls c 2 r6 vo u t 2 vi n 2 cd 1 2 c3 2 c1 0 r1 4 c5 c6 z b3 v in 3 v ou t 3 rs 3 ls c 3 r7 vo u t 3 vi n 3 cd 1 3 c3 3 c1 1 gn d + t e l e c o m s ilv e r v re f 1 p r o t e c ti on c i r c ui t p r o t e c ti on c i r c ui t p r o t e c ti on c i r c ui t + p r o t e c ti on c i r c ui t p r o t e c ti on c i r c ui t p r o t e c ti on c i r c ui t p r o t e c ti on c i r c ui t p r o t e c ti on c i r c ui t p r o t e c ti on c i r c ui t p r o t e c ti on c i r c ui t p r o t e c ti on c i r c ui t p r o t e c ti on c i r c ui t v re f 2 r3 v re f 3 v re f 4 0v c1 5 0v c1 5 0v c1 6 0v c1 6 0v c1 7 0v c1 7 0v c1 8 0v c1 8 0v 0v 0v 0v 0v 0v c9 r1 3 r5 r9 r1 0 r1 1 r1 5 r6 c1 2 + + + fi g ure 4: a 4 channel circuit usin g the amd qslac ? silver tele com 20 05 page 6
v1.4 februa ry 2005 data sheet AG2410 high per f ormanc e quad trun k 5.0 regulatory stand a rds field) cu stom ers shoul d b e a w are that the f c c te st gene rato r for longitudin a l tests i s rated at up to 100 0 a . 10 ? 4.2 ul1459 an d ul1950 protection. the ag2 410 meets the req u ire m ent s of e n 609 50 (199 2) p a ra grap h 6.2.1. 2 for all countrie s ex cept norway and swede n. ple a se conta c t s ilver tel e com if the prod uct is neede d for norway or swe den. to meet the ul1 459 a nd ul1 950 m a in s cro ss te st 2 2 ? 6.0 lay out signal tra c ks shoul d be kept a s sho r t as possibl e. special attention sh ould be paid to dm a, dmb an d zb , as the s e are sen s itive nod es. 4.3 other standards. for ge ne ral mains cross prote c tion (ccitt k2 1), a 47 ? ? silver tele com 20 05 page 7
v1.4 februa ry 2005 data sheet AG2410 high per f ormanc e quad trun k 7.0 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 sy m m i n m a x u n i t s 1 dc supply voltage v cc - 0 . 3 6 . 0 v 2 dc battery voltage present between tip and ring (on-hook) v tr 3 0 0 v 3 maximum voltage on programmable pin, lsc -0.3 6.0 v 4 maximum power dissipation per trunk @ 25 8.0 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 v cc 4 . 7 5 5 . 0 5 . 2 5 v 2 dc battery voltage on tip and ring (on-hook) v tip v rin g 0 0 0 -48 -120 -120 v v 3 dc loo p current i loop 0 2 5 8 5 m a 4 o p e r a t i n g t e m p e r a t u r e 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 supplies and are for d e sign use only . ? silver tele com 20 05 page 8
v1.4 februa ry 2005 data sheet AG2410 high per f ormanc e quad trun k 9.0 dc electrical characteristics. c h a r a c t e r i s t i c s y m m i n t y p 2 max u n i t s t e s t comments 1 1 supply current (per trunk), on-hook 3 i cc 4 . 0 6 . 0 m a 2 power consumption, on-hook p to t 20.0 80.0 m w 3 loop current range i loop 1 4 . 0 85.0 m a 4 status outputs, rs, lc output low voltage output high voltage v ol v oh 3.5 0.4 v v @ 50 at + 5 . 0 v + 5 % , unle s s o t herw i se sta t ed. 1 for te st cir c uit de tails plea se con t a c t silv er telecom 2 t y pical figure s a r e at 25 c w i th nomi nal +5v su pply and 25ma l oop cur r ent, unle s s o t herw i se state d . the s e fig u re s a r e for de si gn aid only . 3 operatin g curren t s a r e de pendan t o n the u s er s a pplicati on. ? silver tele com 20 05 page 9
v1.4 februa ry 2005 data sheet AG2410 high per f ormanc e quad trun k 10.0 ac electrical characteristics. characteris t i c s y m m i n t y p* m a x u n i t s test comments 1 1 ringing voltage: detect ringing voltage: no detect v rd 28 20 20 14 v rms 2 r i n g i n g f r e q u e n c y f r 1 5 6 8 h z 3 input impedance at v in 1 0 0 k ? page 10
v1.4 februa ry 2005 data sheet ? silver tele com 20 05 page 11 AG2410 high per f ormanc e quad trun k 11.0 mechanical specification and pin assignation 7 5 .0 m m 5 4 .0 m m 2. 0m m 11 . 0 0 m m 2. 0m m 3. 5m m 1 bo tto m v i e w 6. 0m m 42 . 0 m m 29 30 43 44 57 58 71 72 28 c i r c u i t a c ir c u it b c ir c u it c c ir c u it d 5. 0 m m 5. 0 m m no t to s c al e 7 84 83 1 71 72 ci r c u i t a 7 84 83 pi n n a m e s b o tto m v i e w ti p ( a ) ri n g ( b ) nc nc dm a dm b nc gn d nc z b nc nc ls c nc v ref rs lc v ou t v in nc v cc 1 71 72 ci r c u i t a 7 84 83 pi n n a m e s to p v i e w ti p ( a ) ri n g ( b ) nc nc dm a dm b nc gn d nc z b nc nc ls c nc v ref rs lc v ou t v in nc v cc s i l v e r t e l e c o m r e c o m m e nds t h e us e of 2m m s o c k e t s , e s pe c i a l l y on pr ot ot ype a nd pr e - pr oduc t i on boa r d s . r e c o m m e nde d p c b hol e di a m e t e r = 0.9 0.05 m m

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