apr9301 - v 2 . aplus integrated circuits inc . . c k b a y a l nd p g a rdi n c o re e c i v o o t n o i t l u e s o i v t c e ef f s t a c o r o f e s u - f - o e s a e d , a n y t l i i t l a vo n - n o , io n p t u m on s r c e w p o w l o h t i w z e i s al l s m a e s i n b m o c e i c de v th e on . i s re s p m o d c a n g n i co d e n d b y c e od u r in t fte n o i s t a h t o n i t o r t s i e d h g t n i t a i n i m l e , s m r o l f a r u t n a r i e h t i n s l a g n si e i c o s v c e od u rep r an d e s r st o -v2 apr930 1 . th e l s e v e l e lta g 6 v o an 2 5 re t h o ore m y s t l l a c i n ty p h c a i c h w f o c h a e , ll s ry c e m o m e e ti l l a o n- v h n o a s l f e d an c ad v n i te d e n e m l p m i s i g y l o o n h e te c ora g s t l ev e ti- l u l / m g al o a n aplus integrated s . o n i ca t l i ap p a l str i nd u i d er a n u m on s c r h e t o n y d m a , a n s to y , er s r d o e re c c i o v e tab l r po r l f o a id e i s t ge. i a s s e nd m o c -s e 3 0 o t 20 - e l g si n a t h i w k c a b y pl a an d n g rd i o re c t y l i a -q u g h i h s id e o v r it p ort . up p s e r rol l on t o c r c i m r o ar e ft w s o n o s ir e u re q n d a t y i bi l p a c a g e or a t s e t st a d - i l o p s i -c h l e g n i ue s r rs t f e f ce o v i d e e apr930 1 th n o i ip t sc r l d e ner a e g l y up p r s e v pow e 6 5 ng l i s ? o n s i pa n e x ag e s s e le m m p s i fo r pi n l e na b p e h i c ? e li f r y tt e a er b on g for l ur e fea t n o w r- d e w o p c at i o m t u a ? t : 1 u a ( ty pi ca l , n o l oa d ) e n r r by c u an d t s - ad ) l o o , n a l i c p y t ( m a 5 t: 2 e n r r c u g n at i pe r o - n ti o um p n s c o e r po w lo w ? he s c t sw i k ba c a y pl te d v a t i a c ge - e d ng & i d r o c e r d at e i v t c a - e l le v - e d i r eq u t r n o em s s t s y en t op m e l de v & in g am m r g o r p - n o at i pe r e o u s o - t - s y , e a l y en d i r f - r e s u ? n o i t c l e se o r t s i re s l rn a e t x e t h i w , s d co n s e to 3 0 0 e of 2 a g s s e e m ng l i s ? ) a l i c y p t ( io n ten t e r ag e s me s r e a y - 10 0 - ) l a c i y p ( t s e yc l c r d c o r e k 0 0 1 - e d i r eq u r u p c k b a y r tt e a o b n - y g o l n o c h e t y r m o m e h s a l f e l i a t o l v - o n n ? nt s on e om p c na l te r e x u m i m n i m - e d i r eq u r ic s na l r t e x o e n - o n i t l u so k ba c a y & p l in g r d o re c e c i o ty v l i qu a g h , h i i p h e- c ng l i s ? s ur e feat 1 ag e p nd messag e sec o to 3 0 for single 20 devic e playbac k ice recording & o v le-chi p sing
pag g e 2 fun c t i o n a l bloc k dia g r a m fi g u r e 2 sh ow s the fun c ti ona l b l oc k dia g ra m fo r th e APR9301-V2 figur e 2 apr9301 -v2 functional block diagram sa mple applic ation fi g u r e 3 s how s t he dia g ra m for a s i n g le , 2 0 -s ec ond m e s s a g e re c o rdin g a nd pl a y b a c k app lic ati o n us in g th eapr9301 d e v i ce . whe n pi ns a r e co nn ect ed a s sh ow n i n thi s ex am pl e, th e o pera t in g m o d e s are as fol l ow s : r e cor d m ode (le vel -a ctiva t ed) a s i n g l e vo ic e m e s s a g e of up to 20 se co nds ca n be reco rde d . th e /led pi n w ill g o low du rin g the ac tu al rec o rd in g p r oc es s to p r ov ide a v i s ual i ndi ca tio n if an led li g ht i s co nne cte d to th is pi n. th e c h i p i s i n re cord m ode as lo n g a s the /r ec l pi n st a y s low ( le ve l - ac ti v a t e d ) . if the me ss a g e la sts lo n g er t h an 20 se co n d s , r e co r d in g will term in ate au tom a ti cal l y aft e r th e l a s t av ai lab l e me mor y ce ll is w r it t e n. i f t h e m e s s a g e is s h o r ter th an 20 s e c ond s, the rec o rd in g o pera t io n w i ll s t op w hen th e th e /r ec l pi n g oe s hi g h. t h e s p ea ke r d r iv er is au t o ma ti ca l l y tri s t a ted du rin g th e re c o rd in g op era t io n. me ss a g es o f u p t o 3 0 sec o n d s c an be rec o rd ed b y us i n g di ffe r e nt os cr r e s i st or v a l u es ( see t abl e 1 ) . pla y ba ck mod e (ed ge-a ct ivate d ) pl a y ba ck al w a y s sta r ts from the be g in nin g of t h e m e s s a g e. th e c h ip is in p l a y ba ck mo de a fter t he / p la y e pi n pu ls es l o w ( ed g e - ac tiv a te d ) . pla y ba ck w i ll st op im me dia t el y w hen th e /pl a y e p i n pu ls e s l o w a se co nd t i me . if t h e ne w l y rec o rde d me ss a g e i s sh or t e r t h an t h e pr e v i o us l y rec o rde d m e s s a g e, th e rem a in in g po r t io n of t h e p r ev io u s me ss a g e w i ll n o t be pl a y ed a fter t he n e w me ss a g e is pla y ed b a c k . t h e i n pu t pr e - a m pl ifi e r , ag c , an d ma in am pl ifi e r ci rcu i ts a r e di sa ble d d u rin g pl a y ba ck . sta ndby mo de ( / ce = " 0 " ) th e ch ip w i ll au tom a t i ca ll y retu rn to t he s t and b y sta t e aft e r re c o r d in g or p l a y b a c k o per atio n i s c o m p l e te d. pow e r d o w n mo de ( / ce = " 1 " ) th e ch ip i s al w a y s in sta ndb y st a t e. no r e co r d in g or p l a y ba ck i s a llo w ed. c u rren t c ons um pti o n is t y pic a l l y les s tha n 1 u a. anain power supplies amp agc micref micin oscr sp+ /le d amp v ssd v ssa sp- a u to m a tic g a in pre- amp v cc d v cc a /recl /playe c ont r o l ( a g c ) s a mp l e & h o l d s w i t c h e d c a p a c ito r f ilte r a n a l o g w r i t e & r ead c i r c u i t s n o n - v o la tile a n a l og s t or a g e m e m o ry a rra y device control s w i t c h e d c a p a c ito r f ilte r ci r c u i t anaout i n t e r n a l o s c illa to r aplus APR9301-V2
g pa g e 3 figu r e 3 s a mpl e a pplica t io n f o r t h e APR9301-V2 t a ble 1 t ypical depende n c e of sampling fr e q u e ncy a n d t o tal v o ice dur a t i on on osc r res i stor v a lue (v cca = v ccd = 6v ; v ss a = v ss d = 0 v ; t a = 25 o c) pin 7 - o s c r t y pica l sa mpli ng fre quen c y c utoff freque ncy (3 db poin t) t y p i ca l t o tal v o ice duratio n 38 k w 8 k h z 3 . 4 khz 1 6 se co nd s 52 k w 6. 4 k h z 2 . 7 khz 2 0 se co nd s 67 k w 5. 3 k h z 2 . 3 khz 2 4 se co nd s 89 k w 4. 0 k h z 1 . 7 khz 3 2 se co nd s nc nc nc nc nc /c e o scr nc nc nc nu1 v ss sp+ sp- v cc d v ssd /l e d nc /p l a y e nc an a o u t an a i n agc mi c r e f mi c i n vcca_r vcca_l 28 27 26 25 24 23 22 21 20 19 18 17 16 15 1 2 3 4 5 6 7 8 9 10 11 12 13 14 /r e c l 52 k 8 ohm speaker 1k 0. 1 f 47u 0.1uf 4. 7 f 22 0k 4. 7 k 22 f 4. 7k 0. 1 f el e c t r e t m i c r op ho ne no t e s : n c = n o c onnect ( m ust be f l oat i ng) . pi ns 23 and 27 ha v e i n t e r n a l pul l - up r e si s t or s . the t ypi cal sam p l i ng f r equenc y i s 6.4 kh z w i t h o s cr = 52 k w. substrate should be connected to gnd. 15 0k vc c 0. 1 f 1 k vc c(6vdc) vc c vc c f o r l o w power a ppl i c at i ons us e doubl e po l e s w i t c h . aplus APR9301-V2
pa g e 4 fi g u r e 4 sho w s t he s a m e a ppl ic ati on u s i n g ext e rna l m i c r op hon e bi as in g i n st ea d of t h e m i c r op h o n e am pl i f i e r on th e apr9301 -v2 , thus b y pa ss in g t h e p r ea mp l i f i er p o r t i o n o f the c h ip fun c ti on . figur e 4 s a m ple applic ation using exter n al m i cr ophone b i asing e l ec t r i c a l c h ar a c t e r i st i c s t a b l es 2 t h rou g h 4 l i s t a b so l u t e ma xi mu m ra t i n g s, r e com m end ed d c c h ara c te ris t ic s, an d rec o m m e nde d an alo g c h arac teri st ics fo r th e apr9301 -v2 device. absolut e m aximum rat i ngs str e s s es g r e at e r t h an t h os e l i s t e d i n t a bl e 2 m a y c aus e p e rm ane nt da ma g e to the d e v i c e . th es e sp ec ific at ion s re pres en t a st ress rati n g on l y . op er a t io n of t h e de vi c e a t th es e or a n y o t her c ond iti ons a bov e tho s e s pec ifi e d in th e re co mm end ed d c c h ara c te ris t ic s o r rec o m m e n d ed an alo g c h arac teri st ics o f th is s pec ifi c a t io n i s not im pli e d . o per atio n of t h e de vi ce at ma xi mu m co nd i t io ns fo r ex te n d e d p e r i o ds ma y af fec t re lia bi lit y . nc nc nc nc nc /c e os c r nc nc nc nu1 v ss sp+ sp- v cc d v ssd /l e d nc /p l a y e nc nc an a i n nc nc nc vcca_r vcca_l 28 27 26 25 24 23 22 21 20 19 18 17 16 15 1 2 3 4 5 6 7 8 9 10 11 12 13 14 a p r9301-v2 /r e c l 52 k 8 ohm speaker 2k 0. 1 f 47 f 0. 1 f 22 f el e c t r et m i c r op ho ne no t e s : n c = n o c onnect ( m ust be f l oat i ng) . pi ns 23 a nd 27 ha v e i n t e r n al pul l - up r e s i st or s. the t ypi cal s a m p l i ng f r equenc y i s 6.4 kh z w i t h o s cr = 52 k w. n p n bi pol ar t r ansi st or , t1 m odel #mps3904 or equi v a l e nt . r 1 and r 2 ar e r ecom m ended t o be 30 k w and 10 k w , r e spec t i v e l y , f o r t ypi c a l appl i cat i ons. 1k r2 t1 10 k 10 0k vc c(6vdc) vc c v c c vcc aplus APR9301-V2 0.1uf substrate should be connected to gnd.
pa g e 5 t a ble 2 a bsolute m aximum ratings. t a ble 3 dc cha r ac t e rist ic s no t e 1 t a ble 4 a nalog cha r ac t e r i stic s no t e 1 item sym bol con dition mi n m ax uni t power s upply v olta g e v cc t a = 25 o c 5. 5 6 . 5 v i nput v olta g e v in 1 t a = 25 o c -0 . 3 v cc +0. 3 v i nput v olta g e v in 2 |i in | < 20 m a -1 . 0 v cc +1. 0 v st ora g e t e m perat ur e t st g - - 65 150 o c t e m perature und er b ias t bs - - 65 125 o c lead t e mper at ure t ld <10s - 300 o c item sym bol cond ition m i n t yp m a x u nit input hi g h v olta g ev ih -0 . 8 x- v cc v input low v o l t a g ev il -- - 0 . 8 v output hi g h v olta g ev oh i oh = -1 .6 m a 2 . 4 - - v output low v o l t a g ev ol i ol = 4.0ma - - 0 . 4 5 v input leak a g e cur rent i ih v ih = v cc -- 1 . 0 ua input leak a g e cur rent i il v il = v ss n o te 2 -1. 0 - - ua output t r istate leak a g e cur rent i oz v ou t = v cc or v ou t = v ss -1. 0 - 1. 0 ua oper at in g c u rrent cons umption i cc i n ternal c l oc k, no l oad - 2 5 - ma s t and by cu rrent cons umption i cc s no load - 1 .0 - ua i t em symb ol c o nditi o n m in t y p m ax unit micin input v olt a g ev mi -- - 2 0 m v p- p micin input res i s t anc e r mi -- 1 0 - k w micin a m p gain (1) g mi 1 agc < 2. 2v - 2 4 - db micin a m p gain (2) g mi 2 agc > 3. 0v - - 45 -1 5 d b anain input v olt a g ev an i -- - 5 0 m v p- p anain input res i s t anc e r an i -- 1 0 - k w anain a m p gain g an i anain to s p +/- - 22 - d b agc out put res ist anc e r ag c -- 1 - k w sp +/ - out put p ower p sp r sp + / - = 1 6 w - 12.2 - mw vo l t a g e am pl itude a cros s sp+/- v sp r sp + / - > 16 w -1 . 2 5 - v p- p t o tal harm onic dist r ot ion thd @ 1khz & 20m vp- p input 1 % not e 1: t y p i c a l v a l ues : v cc d = v cc a = 6 v ; v ss d = v ss a = 0 v ; t a = 25 o c not e 2: e xcept pins 23 and 27 which have int ernal pull - up re sist o rs. aplus APR9301-V2
pa g e 6 bonding p a d diagr a m & de scr iption o f b o nding pad coor d i n a t e s figur e 5 APR9301-V2 die bonding pad diagram t a ble 5 apr9301 -v2 bonding pad coordinates p i n pin na me x axis (n o t e ) y axis (n o t e ) /c e c hi p en ab le -2 496 .20 1 5 65.8 0 os cr os ci ll at o r f r e q u enc y - s etti n g re si sto r - 2 459 .55 7 2 9 .8 0 n u 1 c o n n e c t t o g r ou nd -1 808 .45 - 1 496 .10 v ssd di g ita l g r ou nd supp l y -1 564 .05 - 1 572 .00 v ssa an alo g g r ou nd supp l y -1 384 .05 - 1 548 .70 v ssa an alo g g r ou nd supp l y -1 204 .35 - 1 477 .10 sp+ non - inv e rt in g spe a k e r o u tp ut -707 .15 - 1 390 .00 sp- in v e rtin g sp eak er o u t put 47 9.1 5 -1 389 .90 v cca an alo g po wer su ppl y 97 6.4 5 -1 492 .00 v cca an alo g po wer su ppl y 1 1 9 0 .4 0 - 1 523 .70 mi cin m ic rop hon e in put 16 19.4 5 -1 551 .40 mi cr e f m i c r op hon e r e f e ren c e inp u t 2 0 35.4 5 -1 551 .40 ag c a u t om ati c g a i n c o ntro l 2 4 87.4 5 -1 551 .40 a n ai n a na l o g si g na l in pu t 2 4 87.4 5 -1 049 .90 an ao ut an alo g si g na l o u t put 24 87.4 5 - 648 .90 /p l a y ee d g e-ac ti vat ed p l a y ba ck 24 93.6 5 13 71.1 0 / l ed l e d ou tpu t 14 30.7 0 15 65.8 0 n u 2 c o n n e c t t o g r ou nd 86 5.7 5 15 65.8 0 /r ec l l eve l -ac tiv a te d r e co rd 25 8.1 5 15 65.8 0 v ccd di g ita l po wer su ppl y -229 .40 1 5 79.0 5 v ccd di g ita l po wer su ppl y -510 .80 1 5 41.6 0 no te: w i th res pec t t o di e c e n t er ( m ) o scr / l e d n u 2 / r ecl v c c d v cc d /c e /p l ay e an a o u t an a i n n u 1 v s s d a g c m ic r e f v c c a s p - s p + v s s a v s s a no t e s : di e d i a g ra m is with res pec t to di e c ent er ( m ) . di e di me n s i o n s : x = 21 4 + 1 m i l s y = 14 4 + 1 m i l s d i e t h i c kn es s: 13 .8 + 1.0 mi ls ( 35 0 + 25 m pa d o pen in g : 11 0 m 4.3 m ils c o nn e c t su bs t r at e to g roun d. m ic i n APR9301-V2 n c n c n c nc n c nc n c n c nc nc nc v c c a aplus APR9301-V2
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