advance product note january 2000 lu97ac-link soft modem chip set f e a t u r e s n o p e r a tin g s y s te m s u p p o r t: w in d o w s * 9 5 , 9 8 , 2 0 0 0 p c 9 9 c o m p lia n t a c p i c o m p lia n t n h ig h - s p e e d d a ta m o d e c a p a b ilitie s : it u - t v .9 0 d a ta r a t e s 2 8 0 0 0 b its /s 5 6 0 0 0 b its / s ? u ltr a h ig h c o m p r e s s io n th r o u g h p u t d u e to p a r a l- le l a c c e s s d ir e c tly t o th e h o s t p c it u - t v .3 4 e x te n d e d r a t e s : 3 3 6 0 0 b its /s 2 4 0 0 b its /s v .3 2 te r b o , v .3 2 b is , a n d fa llb a c k s t ia / e ia 6 0 2 s t a n d a r d fo r a t c o m m a n d s e t v .4 2 e r r o r c o r r e c t io n ( l a p m a n d m n p ? ) v .4 2 b is a n d m n p c la s s 5 d a ta c o m p r e s s io n n f a x m o d e c a p a b ilitie s : it u - t v .1 7 , v . 2 9 , v .2 7 t e r, a n d v .2 1 c h 2 t ia / e ia 5 7 8 c la s s 1 f a x n v id e o - r e a d y m o d e m in t e r fa c e ( v r m ) v .8 0 n c o m p le te d a a in c lu d e s th e fo llo w in g : a c 9 7 /m c 9 7 2 .1 c o m p lia n t i n te r n a tio n a l lin e in t e r fa c e c o m p lia n t w ith f c c , c t r 2 1 , j a t e , a n d o th e r p t t s 3 .3 v to 5 v p o w e r s u p p ly 2 4 0 0 v is o la tio n in t e g r a te d r in g d e t e c t o r i n te g r a te d a n a lo g f r o n t e n d ( a f e ) 2 - w ir e to 4 - w ir e h y b r id l o w - p o w e r s ta n d b y m o d e l o w - p r o f ile s o i c p a c k a g e s n a p p lic a tio n s : m o d e m r is e r c a r d s m o b ile d a u g h te r c a r d s * w in d o w s a n d w in d o w s n t a r e r e g is te r e d t r a d e m a r k s o f m i c r o s o ft c o r p o r a tio n . ? a c tu a l s p e e d s o v e r u .s . te le p h o n e lin e s v a r y a n d a r e le s s t h a n 5 6 k , d u e to c u r r e n t f c c r e g u la tio n s a n d lin e c o n d itio n s . ? m n p is a r e g is te r e d tr a d e m a r k o f m ic r o c o m , in c . e ia is a r e g is te r e d tr a d e m a r k o f e l e c tr o n ic in d u s tr ie s a s s o c ia - tio n . in t r o d u c t io n t h e l u c e n t t e c h n o lo g ie s l u 9 7 c h ip s e t is a n i n te - g r a te d d ir e c t a c c e s s a r r a n g e m e n t ( d a a ) c h ip s e t th a t p r o v id e s a lo w - c o s t, is o la t e d , s ilic o n - b a s e d m c 9 7 c o m p lia n t in te r fa c e to th e te le p h o n e li n e . t h e c h ip s e t s a v e s c o s t a n d b o a r d a r e a b y e lim in a tin g th e n e e d fo r a m o d e m a f e o r s e r ia l c o d e c . it a ls o e lim in a te s t h e n e e d fo r a n is o la tio n tr a n s fo r m e r, r e la y s , o p to is o - la to r s , a n d a 2 - w i r e to 4 - w ir e h y b r id . t h e l u 9 7 c h ip s e t c o m p lie s w ith a c 9 7 / m c 9 7 i n te r fa c e s p e c if ic a - tio n r e v . 2 .1 . t h e c h i p s e t is fu l ly p r o g r a m m a b le t o m e e t w o r ld w id e te le p h o n e lin e in t e r fa c e r e q u ir e m e n ts , in c lu d in g th o s e d e s c r ib e d b y c t r 2 1 , j a t e , f c c , a n d v a r io u s c o u n tr y - s p e c ific p t t s p e c i f ic a tio n s . t h e p r o g r a m m a - b le p a r a m e te r s o f th e l u 9 7 c h ip s e t in c lu d e a c te r m i- n a t io n , d c te r m in a tio n , r in g e r im p e d a n c e , a n d r in g e r t h r e s h o ld . t h e l u 9 7 c h ip s e t h a s b e e n d e s ig n e d t o m e e t s t r in g e n t w o r ld w id e r e q u ir e m e n ts fo r o u t - o f- b a n d e n e r g y , b illi n g - to n e im m u n ity , li g h tn in g s u r g e s , a n d s a f e ty r e q u ir e m e n ts . t h e l u 9 7 c h ip s e t a c h ie v e s a n is o la tio n b a r r ie r th r o u g h lo w - c o s t , h ig h - v o lt a g e c a p a c it o r s in c o n ju n c - tio n w it h l u c e n ts p r o p r ie ta r y s ig n a l p r o c e s s in g te c h - n iq u e s . t h e s e t e c h n iq u e s e lim in a te a n y s ig n a l d e g r a d a tio n d u e to c a p a c it o r m is m a t c h e s , c o m m o n - m o d e i n te r fe r e n c e , o r n o is e c o u p lin g . a ll tr a n s m it , r e c e iv e , c o n tr o l, a n d r in g d e te c t d a ta a r e c o m m u n i- c a te d t h r o u g h th i s b a r r ie r. t h e l u 9 7 c h ip s e t is a v a ila b le in tw o 1 6 - p in s m a ll o u tlin e p a c k a g e s w ith a n a c 9 7 in te r fa c e o n t h e c s p 1 0 3 7 a n d a t e le p h o n e lin e in te r fa c e o n th e c s p 1 0 3 7 a /b . t h e c s p 1 0 3 7 a is d e s ig n e d fo r d o m e s tic d a a s , w h ile th e c s p 1 0 3 7 b is fo r in t e r n a - t io n a l d a a s .
2 lucent technologies inc. advance product note january 2000 lu97 ac-link soft modem chip set functional description figure 1. functional block diagram the lu97 chip set is an integrated direct access arrangement (daa) that provides a programmable line interface to meet international telephone line requirements. the lu97 chip set is available in two 16-pin small outline packages (ac97 interface on csp1037 and telephone line interface on csp1037a/b). the chip set eliminates the need for an afe, an isolation transformer, relays, optoisolators, and a 2-wire to 4-wire hybrid. the lu97 chip set dramati- cally reduces the number of discrete components and cost required to achieve compliance with international regu- latory requirements. the csp1037 complies with ac97/mc97 interface specification rev. 2.1. the chip set is fully programmable to meet worldwide telephone line interface requirements, including those described by ctr21, jate, fcc, and various country-specific ptt specifications. the programmable parameters of the lu97 chip set include ac termination, dc termination, ringer impedance, and ringer threshold. the lu97 chip set has been designed to meet stringent worldwide requirements for out-of-band energy, billing-tone immunity, lightning surges, and safety requirements. the lu97 chip set achieves an isolation barrier through low-cost, high-voltage capacitors in conjunction with lucents proprietary signal processing techniques. these techniques eliminate any signal degradation due to capacitor mismatches, common-mode interference, or noise coupling. all transmit, receive, control, and ring detect data are communicated through this barrier. 5-8164 (f) clock ac97 digital interface control interface isolation interface hybrid and dc ring detect off-hook isolation interface termination xout mclk/xin reset bit_clk sync sdata_in sdata_out id0 id1 gpio_a gpio_b rx filt filt2 ref dct vreg vreg2 rext rext2 rng1 rng2 qb qe qe2 csp1037 csp1037a/b
lucent technologies inc. 3 advance product note january 2000 lu97 ac-link soft modem chip set pin information csp1037 pin information figure 2. csp1037 pin locations, 16-pin soic table 1. csp1037 pin locations, 16-pin soic csp1037 serial interface signals table 2. csp1037 serial interface signal descriptions pin name type pin name type pin name type pin name type 1 mclk/xin i 5 sdata_in o 9 aout o 13 v a p 2 xout o 6 sdata_out i 10 id0 i 14 id1 i 3 bit_clk i/o 7 sync i 11 c1a 15gpio_bi/o 4v d p 8 reset i 12 gnd p 16 gpio_a i/o signal description bit_clk serial port bit clock output/input . controls the serial data on sdata_in and latches the data on sdata_out. output when configured as primary device. input when configured as secondary device. sdata_in serial port data out . serial communication and control data that is generated by the digital ac97 controller and presented as an input to the csp1037. sdata_out serial port data in . serial communication and status data that is provided by the csp1037 to the digital ac97 controller. sync frame sync input . data framing signal that is used to indicate the start and stop of a communication data frame. reset reset input (active-low) . an active-low input that is used to reset all control registers to a defined, initialized state. also used to bring the lu97 chip set out of sleep mode. 5-8163 (f) 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 mclk/xin xout bit_clk v d sdata_in sdata_out sync reset gpio_a gpio_b id1 v a gnd c1a id0 aout csp1037
4 lucent technologies inc. advance product note january 2000 lu97 ac-link soft modem chip set pin information (continued) csp1037 miscellaneous signals table 3. csp1037 miscellaneous signal descriptions csp1037 power signals table 4. csp1037 power signal descriptions csp1037a/b pin information figure 3. csp1037a/b pin locations, 16-pin soic table 5. csp1037a/b pin locations, 16-pin soic signal description id0 device id bit 0 . bit 0 of the device configuration. id1 device id bit 1 . bit 1 of the device configuration. aout analog speaker output . provides an analog output signal for driving a call progress speaker. c1a isolation capacitor 1a . connects to one side of the isolation capacitor c1. mclk/xin master clock input/crystal input . xout crystal output . gpio_a general-purpose i/o a . programmable via registers 4ch54h. default input. gpio_b general-purpose i/o b . programmable via registers 4ch54h. default input. signal description v d digital supply voltage . provides the digital supply voltage to the csp1037. nominally either 3.3 v or 5 v. v a analog supply voltage . provides analog supply voltage for the csp1037. nominally 5 v. gnd ground . connects to the system digital ground. also connects to capacitor c2. pin name pin name pin name pin name 1 qe2 5 rng1 9 vreg 13 rext 2 dct 6 rng2 10 vreg2 14 rx 3 ignd 7 qb 11 ref 15 filt 4 c1b 8 qe 12 rext2 16 filt2 5-8165 ( f ) 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 qe2 dct ignd c1b rng1 rng2 qb qe filt2 filt rx rext rext2 ref vreg2 vreg csp1037a/b
lucent technologies inc. 5 advance product note january 2000 lu97 ac-link soft modem chip set pin information (continued) csp1037a/b line interface signals table 6. csp1037a/b line interface signal descriptions csp1037a/b isolation signals table 7. csp1037a/b isolation signal descriptions csp1037a/b miscellaneous signals table 8. csp1037a/b miscellaneous signal descriptions signal description filt filter . sets the time constant for the dc termination circuit. filt2 filter 2 . sets the time constant for the dc termination circuit. rx receive input . serves as the receive side input from the telephone network. dct dc termination . provides dc termination to the telephone network. rext external resistor . sets the real ac termination impedance. rext2 external resistor 2 . sets the complex ac termination impedance. rng1 ring 1 . connects through a 2200 pf capacitor to the tip lead of the telephone line. provides the ring and signals to the csp1037a/b. rng2 ring 2 . connects through a 2200 pf capacitor to the ring lead of the telephone line. provides the ring and signals to the csp1037a/b. qb transistor base . connects to the base of transistor q3. qe transistor emitte r. connects to the emitter of transistor q3. qe2 transistor emitter 2 . connects to the emitter of transistor q4. ref reference . connects to an external resistor to provide a high-accuracy reference current. signal description c1b isolation capacitor 1b . connects to one side of isolation capacitor c1. ignd isolated ground . connects to ground on the line-side interface. also connects to capacitor c2. signal description vreg voltage regulator . connects to an external capacitor to provide bypassing for an internal voltage. vreg2 voltage regulator 2 . connects to an external capacitor to provide bypassing for an internal power supply.
6 lucent technologies inc. advance product note january 2000 lu97 ac-link soft modem chip set package outline diagram lu97 16-pin small-outline package dimensions are in millimeters. ordering information table 9. lu97 ordering information device package comcode csp1037 16-pin, small-outline 108500117 csp1037a 16-pin, small-outline 108500091 cSP1037B 16-pin, small-outline 108500109 0.10 seating plane 16 9 9.80/10.01 3.90 0.10 detail a 0.40/1.27 gage plane seating plane 1.07 ref 0.010 0.19/0.25 see detail a 18 6.00 0.20 1.35/1.75 1.27 1.40 0.10 0.10/0.25 0.33/0.51 5-8994 (f)
lucent technologies inc. 7 advance product note january 2000 lu97 ac-link soft modem chip set notes
lucent technologies inc. reserves the right to make changes to the product(s) or information contained herein without notice. n o liability is assumed as a result of their use or application. no rights under any patent accompany the sale of any such product(s) or information. copyright ? 2000 lucent technologies inc. all rights reserved printed in u.s.a. january 2000 pn99-096dmod for additional information, contact your microelectronics group account manager or the following: internet: http://www.lucent.com/micro e-mail: docmaster@micro.lucent.com n. america: microelectronics group, lucent technologies inc., 555 union boulevard, room 30l-15p-ba, allentown, pa 18103 1-800-372-2447 , fax 610-712-4106 (in canada: 1-800-553-2448 , fax 610-712-4106) asia pacific: microelectronics group, lucent technologies singapore pte. ltd., 77 science park drive, #03-18 cintech iii, singap ore 118256 tel. (65) 778 8833 , fax (65) 777 7495 china: microelectronics group, lucent technologies (china) co., ltd., a-f2, 23/f, zao fong universe building, 1800 zhong shan xi road, shanghai 200233 p. r. china tel. (86) 21 6440 0468 , ext. 316 , fax (86) 21 6440 0652 japan: microelectronics group, lucent technologies japan ltd., 7-18, higashi-gotanda 2-chome, shinagawa-ku, tokyo 141, japan tel. (81) 3 5421 1600 , fax (81) 3 5421 1700 europe: data requests: microelectronics group dataline: tel. (44) 7000 582 368 , fax (44) 1189 328 148 technical inquiries: germany: (49) 89 95086 0 (munich), united kingdom: (44) 1344 865 900 (ascot), france: (33) 1 40 83 68 00 (paris), sweden: (46) 8 594 607 00 (stockholm), finland: (358) 9 4354 2800 (helsinki), italy: (39) 02 6608131 (milan), spain: (34) 1 807 1441 (madrid)
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