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# # # YMU757 ma-1 # # # yamaha corporation # YMU757 catalog catalog no.:lsi-4mu757a2 2000.2 outline the y m u 757 i s a hi gh qual i t y mel ody lsi f or cel l ul ar phone handset s, suppor t i ng t he dat a f or mat f or var i ous appl i cat i ons i ncl udi ng r i ngi ng and hol di ng mel ody sounds. the bui l t - i n yamaha' s or i gi nal fm syn t hesi zer can cr eat e var i ous t i mbr es, and i t s bui l t - i n sequencer can pr oduce up t o 4 di f f er ent sounds wi t h 4 di f f er ent t i mbr es si mul t aneousl y wi t hout pl aci ng a l oad t o t he cont r ol l er . the ser i al por t cont r ol l er i nt er f ace enabl es r eal t i me r epr oduct i on of t he mel ody dat a vi a fi fo , wi t hout t he l i mi t at i on of t he dat a capaci t y. wi t h a bui l t - i n am pl i f i er t o dr i ve t he dynam i c t ype speaker , i t i s p o ssi bl e t o connect t he speaker di r ect l y. thi s lsi al so has an anal og- out put t er mi nal f or t he phone j ack. i n t he st and- by m ode, t he pow er consum pt i on can be r educed t o 1 a or l ess whi l e wai t i ng. a por t abl e t er mi nal m achi ne. features yam aha' s or i gi nal fm sound gener at or f unct i on bui l t - i n sequencer c apabl e of pr oduci ng up t o 4 di f f er ent sounds si mul t aneousl y ( 4 i ndependent t i mbr es avai l abl e) bui l t - i n out put 400m w speaker am pl i f i er bui l t - i n ci r cui t f or sound qual i t y cor r ect i ng equal i zer bui l t - i n ser i al i nt er f ace 2. 688, 8. 4, 12. 6, 14. 4, 19. 2, 19. 68, 19. 8 and 27. 82 mhz ser i al cl ock i nput s suppor t anal og out put f or ear phone. pow er dow n m ode ( typ 1a or l ess) pow er suppl y vol t age ( di gi t al and anal og) : 3. 0v 10 % 20- pi n tsso p
YMU757 # # - 2 - contents ? g ener al descr i pt i on of y m u 757 3 ? b l ock descr i pt i on. . 4 ? pi n conf i gur at i on . . 5 ? pi n descr i pt i on . 6 ? b l ock di agr am . . 7 ? r egi st er map. 8 ? e xpl anat i on of r egi st er s . 9- 19 musi cal sco r e dat a. . . 9- 13 ti mbr e dat a. 14- 17 ot her cont r ol dat a 17- 19 ? pow er - dow n cont r ol di vi si on di agr am 20 ? e xpl anat i on of each bi t . . . . . 20- 22 ? r eset t i ng. . . 23 ? set t i ngs & pr ocedur e r equi r ed t o gener at e mel ody 23 ? i nt er r upt sequence. . . . . 23- 24 ? st at e t r ansi t i on descr i pt i on. . . . . 25- 26 ? o per at i on i n fi fo em pt y st at e. . . 27 ? r epr oduct i on met hod assu m i ng occur r ence of em pt y st at e 27 ? e xam pl e of syst em connect i on. . . 28 ? o ne sound and vol um e l evel adj ust ment i n 4 sound pr onunci at i on. 29- 30 ? sound qual i t y cor r ect i on ci r cui t . 31- 32 ? ser i al i nt er f ace speci f i cat i ons. 33 ? e l ect r i cal char act er i st i cs . 34- 39 ? g ener al descr i pt i on of fm sound gener at or . 40 ? e xt er nal di mensi ons . . 41
YMU757 # # - 3 - general description of YMU757 the y m u 757 i s cont r ol l ed by way of t he ser i al i nt er f ace. show n bel ow i s i t s i nt er nal conf i gur at i on. w hen t he dat a i s i nput t ed i nt o t he ser i al i nt er f ace, i t i s conver t ed i nt o t he par al l el dat a and t r ansm i t t ed t o each f unct i on bl ock accor di ng t o t he i ndex addr ess. the musi cal sco r e dat a i s st or ed i n t he 32- wor d fi fo f i r st and t hen t r ansm i t t ed t o t he sequencer wher e i t i s i nt er pr et ed and si gnal s t o cont r ol sound gener at i on of t he fm syn t hesi zer i s out put . the t i mbr e r egi st er i s wher e up t o 8 t i mber dat a can be st or ed. al so , as t he sequencer cont r ol l i ng par am et er s, t he st ar t / st op and t em po si gnal s ar e pr ovi ded. i n or der t o have sound gener at ed, t he f ol l ow i ng pr o cesses must be per f or med f or t hi s lsi . 1) i ni t i al st at us set t i ng ( cancel l at i on of pow er - dow n f unct i on, cl ock sel ect i on, et c. ) 2) ti mbr e dat a set t i ng 3) wr i t i ng t he musi cal sco r e dat a i n fi fo bef or e st ar t i ng t he sequence 4) wr i t i ng t he next musi cal sco r e dat a bef or e f i f o becom es em pt y upon r ecei pt of t he i nt er r upt si gnal f r om fi fo dur i ng r epr oduct i on. ( for t he det ai l s, r ef er t o "s et t i ngs & pr ocedur e r equi r ed t o gener at e mel ody". ) ser i al i nt er f ace fi fo 32w or d / i rq sequencer fm synt hesi zer d/ a + vol um e am p ti mbr e r egi st er musi cal sco r e dat a tem po sta r t/ sto p ti mbr e al l ot ment ti mbr e dat a vol um e, pow er management , et c. sd i n sync sc lk spout hpout
YMU757 # # - 4 - block description 1) ser i al i nt er f ace when t he ser i al i nt er f ace r ecei ves t he ser i al dat a, i t i dent i f i es t he i ndex dat a and t r ansm i t s t he cont r ol dat a t o each f unct i on bl ock. 2) fi fo the musi cal sco r e dat a ar e st or ed t em por ar i l y i n fi fo whi ch can cont ai n up t o 32 musi cal sco r e dat a. the musi cal sco r e dat a ar e pr o cessed ar e pr o cessed i n t he sequencer when t hey ar e gener at ed as sounds and t hose t hat have been pr o cessed ar e del et ed one af t er anot her . when t he r em ai ni ng dat a am ount i n fi fo r eaches t he r egi st er set t i ng ( i rq poi nt ) or l ess, i t out put s an i nt er r upt si gnal t o ask f or t he cont i nui ng musi cal sco r e dat a t o be f ed. 3) sequencer when t he sequencer r ecei ves t he sta r t command, i t st ar t s t o r ead t he musi cal sco r e dat a whi ch have been st or ed i n fi fo . the pr o cessed musi cal sco r e dat a ar e del et ed. 4) ti mbr e r egi st er the t i mbr e dat a ar e st or ed i n t hi s r egi st er whi ch can cont ai n up t o 8 t i mbr es. set t i ngs f or t hi s r egi st er must be made bef or e sound gener at i on. i t i s i ni t i al i zed when t he har dw ar e or t he so f t war e i s r eset but t he val ues ar e r et ai ned whi l e i n t he pow er - dow n m ode and al so af t er i t i s cancel l ed. 5) fm syn t hesi zer the t i mbr es ar e syn t hesi zed and gener at ed accor di ng t o set t i ngs. four sounds can be gener at ed at t he sam e t i me. 6) d/ a, vol um e and am pl i f i er the out put s f r om t he synt hesi zer ar e d / a conver t ed and vol um e pr o cessed . af t er t hat , t hey ar e out put f r om t he speaker or t he ear phone out t er mi nal .
YMU757 # # - 5 - pin configuration 20 pi n tsso p t op vi ew dvdd sd i n sync sc lk a v ss vref hpout eq 1 eq 2 eq 3 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 clk_i / i rq testo / rst / testi d v ss spv ss spout2 spout1 avdd
YMU757 # # - 6 - pin description no. pin i/o function 1 dvdd - digital power supply (+3.0v) connect 0.1f and 4.7f capacitors between this terminal and the digital ground terminal. 2 sdin i serial i/f data input 3 sync i serial i/f synchronous signal input 4 sclk ish serial i/f bit clock input 5 avss - analog ground 6 vref a analog reference voltage terminal connect 0.1 f capacitor between this terminal and the analog ground terminal. 7 hpout ao analog output terminal for ear phone 8 eq1 ao equalizer terminal 1 9 eq2 ai equalizer terminal 2 10 eq3 ao equalizer terminal 3 11 avdd - analog power supply (+3.0v) connect 0.1 f and 4.7 f capacitors between this terminal and the analog ground terminal 12 spout1 a0 speaker output terminal 1 13 spout2 ao speaker output terminal 2 14 spvss - analog ground exclusively used for speaker 15 dvss - digital ground 16 /testi i lsi test input terminal (always connect with dvdd.) 17 /rst i hardware reset terminal 18 testo o lsi test output terminal (disconnected) 19 /irq o interrupt signal output 20 clk_i ish clock input terminal (8 types of frequency are supported.) not e : i sh = schm i t t i nput t er mi nal a i = anal og i nput t er mi nal a 0 = anal og out put t er mi nal
YMU757 # # - 7 - block diagram c oncer ni ng ai n si gnal i nput t ed i nt o equal i zer ci r cui t as t hi s desi gn pr esupposes t he use of t hi s lsi f or t he "hands- f r ee", i t i s p o ssi bl e t o pr o cess t he fm sound and cal l sound by anal og mi xi ng i n t he equal i zer ci r cui t and out put t he r esul t i ng sound t hr ough t he speaker . 6<1& # 6',1 # 6&/. # &/.b, # 2 567 # 2 ,54 # (4 4# 95() # 6huldo # , 2 ) # # '9'' # '966 # )092/ # 65 vwhs # 3rzhu # grzq # &rqwuro # 5hjlvwhu # )0 # 6\qwkhvl]hu # 7 6rxqg # vljqdov # jhqhudwhg # vlpxowdqhrxvo\ # ## '$& # $03 # $9'' # $966 # 7lplqj # *hqhudwru # +328 +392/ # 65 vwhs # ),)2 # 49 e # [ #65 z # (4 5# (4 6# 63287 63287 # 95() # cr ci r cui t eq 63966 # 6392/ # 65 vwhs # $,1 #- # 6htxhqfhu # .# - 95() #
YMU757 # # - 8 - register map i ndex b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0 description b l1 b l0 n t 3 n t 2 n t 1 n t 0 c h 1 c h 0 v i b ti 3 t i 2 t i 1 t i 0 t k 2 t k 1 t k 0 note data $00h 0 0 1 1 0 0 c h 1 c h 0 v c h e t i 3 t i 2 t i 1 t i 0 v c h 2 v c h 1 v c h 0 rest data m l2 m l1 m l0 v i b e g t su s r r 3 r r 2 r r 1 r r 0 d r 3 d r 2 d r 1 d r 0 a r 3 a r 2 $10- 2fh a r 1 a r 0 sl3 sl2 sl1 sl0 t l5 t l4 t l3 t l2 t l1 t l0 w a v fl2 fl1 fl0 timbre data (left data for 1 timbre) $30h 0 v 32 v 31 v 30 0 v 22 v 21 v 20 0 v 12 v 11 v 10 0 v 02 v 01 v 00 timbre allotment data $31h 0 0 0 0 0 0 0 0 t 7 t 6 t 5 t 4 t 3 t 2 t 1 t 0 tempo data $32h 0 0 0 0 0 0 0 0 0 0 0 0 0 0 clr st fm control $33h 0 0 0 0 0 0 0 0 0 0 0 0 0 c lk se l clk_i select $34h 0 0 0 0 0 0 0 0 0 0 i rqe i rq poi nt irq control $35h 0 0 0 0 0 0 0 0 0 0 0 v 4 v 3 v 2 v 1 v 0 speaker volume $36h 0 0 0 0 0 0 0 0 0 0 0 v 4 v 3 v 2 v 1 v 0 fm volume $37h 0 0 0 0 0 0 0 0 0 0 0 v 4 v 3 v 2 v 1 v 0 hpout volume $38h 0 0 0 0 0 0 0 0 0 0 0 a p4 a p3 a p2 a p1 d p power management $39 - $e fh r eser ved ( access pr ohi bi t ed) reserved $f0 - ffh for lsi test ( access pr ohi bi t ed) lsi test not e : maki ng an access t o t he spaces mar ked "r eser ved" and "f o r lsi test" i n t he above t abl e i s pr ohi bi t ed. be su r e t o wr i t e "0 " f or t he em pt y bi t , al t hough wr i t i ng "1 " t her e wi l l not af f ect t he lsi oper at i on.
YMU757 # # - 9 - explanation of registers the y m u 757 has t hr ee t ypes of cont r ol r egi st er s. they ar e musi cal sco r e dat a, t i mbr e dat a and ot her cont r ol dat a. musical score data $00h musical score data the m usi cal sco r e dat a ar e w r i t t en i n fi f o w hose capaci t y i s 32 w or ds. ther e ar e t wo t ypes of musi cal sco r e dat a; not e dat a and r est dat a. not e d at a def aul t : 0000h index b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0 $00h bl1 bl0 nt3 nt2 nt1 nt0 ch1 ch0 vib ti3 ti2 ti1 ti0 tk2 tk1 tk0 bl1 C bl0 : oct ave bl ock set t i ng thr ee oct ave bl ocks ar e avai l abl e f or sound r ange set t i ng. the set t i ng r ange i s 1 t o 3. do not use "0 " f or set t i ng. the sound gener at i on r ange i nvol ves t he coef f i ci ent nam ed "m u l t i pl e ( mul t i pl yi ng f act or f or sound f r equency) . by com bi ni ng t he oct ave bl ock and mul t i pl e set t i ngs, sounds can be gener at ed i n t he r anges as l i st ed i n t he t abl e bl ow . si nce t he set t i ng r anges of "m u l t i pl e" coef f i ci ent i s 0 t o 7, act ual l y, sounds can be gener at ed i n a w i der r anges t han t hose gi ven i n t he t abl e bel ow . multiple = 1 ( x 1) multiple = 2 ( x 2) multiple = 4 ( x 4) bl[1:0] = 01b c#3 (139hz) d3 (147hz) d#3 (156hz) e3 (165hz) f3 (175hz) f#3 (185hz) g3 (196hz) g#3 (208hz) a3 (220hz) a#3 (233hz) b3 (247hz) c4 (262hz) c#4 (277hz) d4 (294hz) d#4 (311hz) e4 (330hz) f4 (349hz) f#4 (370hz) g4 (392hz) g#4 (415hz) a4 (440hz) a#4 (466hz) b4 (494hz) c5 (523hz) c#5 (554hz) d5 (587hz) d#5 (622hz) e5 (659hz) f5 (698hz) f#5 (740hz) g5 (784hz) g#5 (831hz) a5 (880hz) a#5 (932hz) b5 (988hz) c6 (1046hz) bl[1:0] = 10b c#4 (277hz) d4 (294hz) d#4 (311hz) e4 (330hz) f4 (349hz) f#4 (370hz) g4 (392hz) g#4 (415hz) a4 (440hz) a#4 (466hz) b4 (494hz) c5 (523hz) c#5 (554hz) d5 (587hz) d#5 (622hz) e5 (659hz) f5 (698hz) f#5 (740hz) g5 (784hz) g#5 (831hz) a5 (880hz) a#5 (932hz) b5 (988hz) c6 (1046hz) c#6 (1109hz) d6 (1175hz) d#6 (1245hz) e6 (1319hz) f6 (1397hz) f#6 (1480hz) g6 (1568hz) g#6 (1661hz) a6 (1760hz) a#6 (1865hz) b6 (1976hz) c7 (2093hz) bl[1:0] = 11b c#5 (554hz) d5 (587hz) d#5 (622hz) e5 (659hz) f5 (698hz) f#5 (740hz) g5 (784hz) c#6 (1109hz) d6 (1175hz) d#6 (1245hz) e6 (1319hz) f6 (1397hz) f#6 (1480hz) g6 (1568hz) c#7 (2217hz) d7 (2349hz) d#7 (2489hz) e7 (2637hz) f7 (2794hz) f#7 (2960hz) g7 (3136hz)
YMU757 # # - 10 - g#5 (831hz) a5 (880hz) a#5 (932hz) b5 (988hz) c6 (1046hz) g#6 (1661hz) a6 (1760hz) a#6 (1865hz) b6 (1976hz) c7 (2093hz) g#7 (3322hz) a7 (3520hz) a#7 (3729hz) b7 (3951hz) c8 (4186hz) nt3 - nt0 : pi t ch set t i ng four bi t s f r om nt3 t o 0 ar e used t o speci f y t he pi t ch. the bi t assi gnm ent i s as show n bel ow . n t [ 3: 0] pi t ch 0h not pr onounce 1h c # 2h d 3h d # 4h i nhi bi t 5h e 6h f 7h f# 8h i nhi bi t 9h g a h g # b h a c h i nhi bi t d h a # e h b fh c i f 0h i s set t o nt[ 3: 0] , movement of lsi i s as f ol l ow s. ? the pr obl em t hat lsi hangs up doesn' t occur . ? the par t speci f i ed wi t h ch[ 1: 0] i sn ' t pr onounced i n sp i t e of t he est abl i sh m en t val ue of pr onunci at i on head tk [ 2: 0] t o expl ai n i n t he r est . ? the i nt er val t i me when i t i s set wi t h ti [ 3: 0] t o expl ai n i n t he r est i s ef f ect i ve. when i nt er val t i me p asses, i t deal s wi t h t he next musi c dat a. ? though i t l ooks l i ke a "r est ", t her e i s a di f f er ence i n behavi or wi t h t he f ol l ow i ng case as a movement . 7. # 7, # the t r eat ment of t he next musi c dat a begi ns at t h e t i me of a. when r est dat a w er e speci f i ed, as f or t he r el eas e t i me i s goes on. when t he dat a n t i s 0h i n t he sam e par t , a r el ease of t he sl ant l i ne par t i s not pr onounced. (qyhorsh # zdyh # vkdsh # ri # fduulhu #
YMU757 # # - 11 - ch1 - ch0 : par t set t i ng as t he sound gener at or can gener at e sounds i n 4 par t s si mul t aneousl y, set t he par t f or each not e by usi ng ch1 and 0 bi t s. c h [ 1: 0] par t 00b 0 01b 1 10b 2 11b 3 vi b : vi br at o set t i ng thi s bi t i s used t o set vi br at o f unct i on on or of f f or each not e : "0 " t o set i t of f and "1 " t o set i t on. the vi br at o f r equency i s 6. 4h z and t he m odul at i on r at e i s 13. 47 cent . when vi b bi t of t i mbr e dat a( $10- 2fh) i s "0 ", vi br at o f unct i on of f . ti 3 - ti 0 : i nt er val set t i ng t hese bi t s ar e used t o set t he i nt er val per i od bef or e t he not e and r est ar e pr o cessed next . the i nt er val "48" r epr esent s t he t i me f or t he w hol e not e. ti [3:0] interval 0h 0 1h 2 2h 3 3h 4 4h 6 5h 8 6h 9 7h 12 8h 18 9h 24 ah 48 bh 0 ch 16 dh 24 eh 36 fh 48 tk 2 - 0 : not e ( sound l engt h) desi gnat i on t hese 3 bi t s ar e used t o desi gnat e t he not e ( sound l engt h) . d ependi ng on t he val ues of i nt er val set t i ng ( ti 3 - 0) , t he l engt h var i es as show n i n t he f ol l ow i ng t abl e. the i nt er val "48" r epr esent s t he t i me f or t he w hol e not e. ti [3:0] = 0-ah ti [3:0] = b-fh tk[2:0] 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 sound length 1 2 3 5 7 8 11 17 15 23 29 32 35 41 47 tie, slur
YMU757 # # - 12 - p recau t i on when key i s t ur ned on agai n under t he condi t i on t hat a r el ease i sn ' t f i ni sh ed com pl et el y, a t one may change. ( i t i s l i mi t ed when envel ope wave shape i s su st ai ned sound. ) thi s happens because envel ope wave shape of t he car eer si de of fm sound so u r ce and m odul at or si de ar e sh i f t ed. the movement of envel ope i s expl ai ned. as f or t he condi t i on t hat i t st ops com pl et el y, i t moves t o at t ack r at e at t he sam e t i me wi t h keyon. i f t he l ast pr onunci at i on i s condi t i on t hat i n r el ease and i sn t st opped com pl et el y, t he est abl i sh m en t of a r el ease i s made f or ci bl y ear l y ( 8. 94m s) . and i t moves t o at t ack r at e f r om t he condi t i on t hat i t st ops. ( a i n f i gur e) an exam pl e i s gi ven t o i t , and t he cause t hat a t one changes i s expl ai ned. i t t hi nks t hat t her e i s a t one whi ch onl y r el ease t i me i s di f f er ent f r om wi t h t he car eer and m odul at or . t hough envel ope of t he so l i d l i ne changes t o at t ack r at e soon at t he t i me of t he second keyon. but can' t move t o at t ack r at e soon, because sound doesn' t st op com pl et el y, envel ope of t he dot t ed l i ne. i t moves t o at t ack r at e af t er be speed up r el ease t i me and i t becom es t he condi t i on t hat r el ease t i me i s st ops com pl et el y. bot h envel ope ar e sh i f t ed by t hi s movement . and t he sym p t om t hat a t one changes i n t he per i od when i t i s su r r ounded by a ci r cl e occur s. i t asks f or t he f ol l ow i ng consi der at i on t o avoi d t hi s sym p t om . - i t i s pr onounced under t he condi t i on t hat a r el ease st ops com pl et el y. - the r el ease t i me of t he t one i s sh o r t ened wi t h t he car eer , m odul at or si de as wel l . i f su st ai n l evel set t i ng of t he car eer si de and m odul at or si de ar e sam e val ue, t he met hod of avoi dance i s as f ol l ow s. - the r el ease t i me of car eer si de and m odul at or si de i s made t he sam e l engt h. rest dat a def aul t : 0000h index b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0 $00h 0 0 1 1 0 0 ch1 ch0 vche ti3 ti2 ti1 ti0 vch2 vch1 vch0 7. # 7, # 7. # $ # wrqh # fkdqjhv 1#
YMU757 # # - 13 - ch1 - ch0 : par t set t i ng usi ng ch1 or 0 bi t , set t he par t f or each r est . ch[1:0] part 00b 0 01b 1 10b 2 11b 3 ti 3 - ti 0 : i nt er val set t i ng t hese bi t s ar e used t o set t he i nt er val bef or e t he not e and r est ar e pr o cessed next . the i nt er val "48" r epr esent s t he t i me f or t he w hol e not e. ti [3:0] interval 0h 3 1h 2 2h 3 3h 4 4h 6 5h 8 6h 9 7h 12 8h 18 9h 24 ah 48 bh 1 ch 16 dh 24 eh 36 fh 48 vche, vch 2 - 0 : ti mbr e change f unct i on al t hough t he maxi mum num ber of t i mbr es t hat can be used si mul t aneousl y i s f our , t he t i mbr e can be changed dur i ng sound r epr oduct i on by set t i ng t hese bi t s. set "1 " f or v c h e and use v c h 2 t o v c h 0 t o set t he t i mbr e n o. . then st ar t i ng wi t h t he not e w hose sound i s t o be gener at ed next , t he t i mbr e f or t he par t whi ch has been set by usi ng ch0 and 1 wi l l be changed. change a t one af t er t he pr onunci at i on of a par t t o change st ops com pl et el y. the condi t i on t hat pr onunci at i on st ops i s not t he condi t i on t hat tk ( pr onunci at i on l engt h) i s f i ni sh ed , but t he condi t i on t hat t he t i me when r el eases of envel ope i s f i ni sh ed . b e car ef ul because st r ange sound m om ent ar i l y i s p r onounced w hen you change a t one under t he condi t i on t hat pr onunci at i on doesn' t st op com pl et el y. i f t he t i mbr e al l ot ment i s changed by usi ng t hi s f unct i on, t he $30h r egi st er i t sel f wi l l be r ew r i t t en.
YMU757 # # - 14 - timbre data $10 C 2fh timbre data i t i s p o ssi bl e t o r egi st er t he dat a f or 8 t i mbr es i n t he r egi st er and 4 am ong t hem can be r epr oduced si mul t ane ousl y. one t i mbr e consi st s o f [ par am et er f or t he m odul at or ] and [ par am et er f or t he car r i er ] as a set . ( for t he det ai l s o f t he m odul at or and t he car r i er , pl ease r ef er t o "g ener al descr i pt i on of fm sound gener at or ") . i ndex 10h, 11h ti mbr e dat a f or t he 1st t i mbr e m odul at or i ndex 12h, 13h ti mbr e dat a f or t he 1st t i mbr e car r i er i ndex 14h, 15h ti mbr e dat a f or t he 2nd m odul at or i ndex 16h, 17h ti mbr e dat a f or t he 2nd t i mbr e car r i er omi t t ed. i ndex 2c h, 2d h ti mbr e dat a f or t he 8t h t i mbr e m odul at or i ndex 2e h, 2fh ti mbr e dat a f or t he 8t h t i mbr e car r i er the f ol l ow i ng bi t assi gnm ent i s used f or bot h m odul at or and car r i er . the set t i ng must be com pl et ed bef or e any sound i s gener at ed. i t i s pr ohi bi t ed t o change t he t i mbr e par am et er whi l e any sound i s gener at ed. ti m b re dat a def aul t : 0000h index b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0 even ml2 ml1 ml0 vib egt sus rr3 rr2 rr1 rr0 dr3 dr2 dr1 dr0 ar3 ar2 odd ar1 ar0 sl3 sl2 sl1 sl0 tl5 tl4 tl3 tl2 tl1 tl0 wav fl2 fl1 fl0 ml2 - ml0 : mul t i pl e set t i ng "m u l t i pl e" r ef er s t o t he mul t i pl yi ng f act or f or sound f r equency. the out put f r equency i s det er mi ned by t he oct ave, pi t ch and mul t i pl e set t i ngs on t he car r i er si de. on t he m odul at or si de, i t i s p o ssi bl e t o adj ust t he mul t i pl e set t i ng and cr eat e di f f er ent t i mbr es. m l [ 2: 0] mul t i pl yi ng f act or f or f r equency 0h x 1/ 2 1h x 1 2h x 2 3h x 3 4h x 4 5h x 5 6h x 6 7h x 7
YMU757 # # - 15 - vi b : vi br at o thi s f unct i on i s used f or set t i ng t he vi br at o f unct i on on or of f . use "0 " t o set i t of f and "1 " t o set i t on. the vi br at o f r equency i s 6. 4h z and t he m odul at i on r at e i s 13. 47cent . egt : envel ope wavef or m t ype thi s f unct i on i s used t o sel ect t he t ype of t he envel ope wavef or m. use "0 " f or t he dam ped sound and "1 " f or t he su st ai ned sound. show n bel ow ar e t he wavef or ms f or t he dam ped sound and su st ai ned sound. ar3 - ar0 : at t ack r at e set t i ng "a t t ack r at e" r ef er s t o t he t i me f r om st ar t of t he sound gener at i on ( - 48db ) unt i l i t r eaches t he maxi mum vol um e ( 0db ) . the t abl e on page 15 show s t he set t i ngs by t he t i me r equi r ed t o r each 0db f r om C48db . dr3 - dr0 : d ecay r at e set t i ng the decay r at e r ef er s t o t he dam pi ng t i me r equi r ed t o r each t he su st ai n l evel ( sl) f r om t he maxi mum vol um e l evel ( 0db ) . the t abl e bel ow show s t he set t i ngs by t he t i me r equi r ed t o r each - 48db f r om 0db . rr3 - rr0 : rel ease r at e set t i ng the r el ease r at e i s def i ned di f f er ent l y f or t he dam ped sound and t he su st ai ned sound. - i n t he case of t he dam ped sound, i t m eans t he dam pi ng t i me f r om t he su st ai n l evel t o t he end of t he sound l engt h. the sound i s dam ped i n 286m s ( t i me t o r each - 48db f r om 0db ) af t er t he end of t he sound l engt h i s r eached. - i n t he case of t he su st ai ned sound, i t m eans t he dam pi ng t i me f r om t he end of t he sound l engt h. sl3 - sl0 : sust ai n l evel set t i ng $5 # '5 # 55 # 6/ # 3 g% # 07; g% # w hen sus=o n egt=0 damped sound sound len g th $5 # '5 # 55 # 6/ # 3 g% # 07; g% # w hen sus=o n egt=1 sustained sound sound length
YMU757 # # - 16 - the su st ai n l evel r ef er s t o t he l evel at whi ch sh i f t i ng f r om t he decay r at e t o t he r el ease r at e t akes pl ace i n t he case of t he dam ped sound, and t he vol um e l evel of t he sound bei ng su st ai ned i n t he case of t he su st ai ned sound. sl -> sl3 sl2 sl1 sl0 weighted bit (db) -24 -12 -6 -3 ar[3:0] dr[3:0] rr[3:0] attack rate from -48 to 0db (ms) decay rate, release rate from 0 to -48db (ms) fh 0 2.23 eh 4.65 8.94 dh 9.30 17.88 ch 18.59 35.76 bh 37.19 71.52 ah 74.38 143.04 9h 148.76 286.07 8h 297.51 572.14 7h 595.03 1144.25 6h 1190.05 2288.56 5h 2380.10 4577.12 4h 4760.21 9154.25 3h 9520.42 18308.50 2h 19040.84 36617.00 1h 38081.68 73234.00 0h inhibit infinity tl5 - tl0 : tot al l evel set t i ng thi s f unct i on i s used t o set t he envel ope l evel . tl tl5 tl4 tl3 tl2 tl1 tl0 weighted bit (db) -24 -12 -6 -3 -1.5 -0.75 su s : sust ai n on/ o ff set t i ng "0 " : o ff "1 " : on the r el ease r at e changes t o "6 " ( 2. 29s) when t he sound l engt h com es t o t he end. wav : wavef or m sel ect i on the m odul at or and car r i er can gener at e t he si n wave but when t hi s bi t set t i ng i s made, i t i s p o ssi bl e t o gener at e a hal f - wave r ect i f i ed wavef or m of t he si n wave, t he t i mbr es i n wi der r ange can be cr eat ed. "0 " : si n wave "1 " : hal f - wave r ect i f i ed wavef or m of t he si n wave. fl2 - fl0 : f eed- back set t i ng thi s f unct i on i s ef f ect i ve f or t he oper at or on t he car r i er si de onl y. i t i s used t o set t he f eedback m odul at i on r at e. be su r e t o set "0 " f or t he oper at or on t he m odul at or si de. thi s i s ef f ect i ve when gener at i ng t he st r i ngs. wav=0 wav=1
YMU757 # # - 17 - fl [2:0] 0 1 2 3 4 5 6 7 modulation rate 0 ?/16 ?/ 8 ?/ 4 ?/ 2 ? 2? 4? other control data $30h timbre allotment data one mel ody consi st s of f our par t s and a t i mbr e i s al l ot t ed f or each of t hese par t s. a m ong t he ei ght t i mbr es r egi st er ed i n t he t i mbr e dat a r egi st er , use f our of t hem f or each of t hese par t s. def aul t : 0000h index b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0 $30h 0 v32 v31 v30 0 v22 v21 v20 0 v12 v11 v10 0 v02 v01 v00 "x" i n vx[ 2: 0] m eans t he par t no. the t i mbr e dat a used wi t h vx[ 2: 0] ar e as f ol l ow s. vx[ 2: 0] ti mbr e dat a t o be used 0h t i mbr e set f or i ndex 10 t o 13h i s used. 1h t i mbr e set f or i ndex 14 t o 17h i s used. 2h t i mbr e set f or i ndex 18 t o 1b h i s used. 3h t i mbr e set f or i ndex 1c t o 1fh i s used. 4h t i mbr e set f or i ndex 20 t o 23h i s used. 5h t i mbr e set f or i ndex 24 t o 27h i s used. 6h t i mbr e set f or i ndex 28 t o 2b h i s used. 7h t i mbr e set f or i ndex 2c t o 2fh i s used. $31h tempo data the "t em po" r ef er s t o t he num ber of quar t er not es r epr oduced i n one mi nut e. use t hi s set t i ng t o set t he t em po of t he mel ody used when r epr oduced. the set t i ng dat a i s ( 8739/ tem po ) - 1 def aul t : 0000h index b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0 $31h 0 0 0 0 0 0 0 0 t7 t6 t5 t4 t3 t2 t1 t0 $32h fm section control def aul t : 0000h index b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0 $32h 0 0 0 0 0 0 0 0 0 0 0 0 0 0 clr st st : thi s bi t i s used t o cont r ol st ar t / st op of t he mel ody. use "1 " f or t he st ar t set t i ng and "0 " f or t he st op set t i ng. clr : thi s bi t i s used t o i ni t i al i ze t he ent i r e lsi by t he so f t war e. bi t clr i t sel f i s not cl ear ed when i t i s set as "1 ". bi t clr shoul d be wr i t t en "0 ". $33h clock selection
YMU757 # # - 18 - def aul t : 0000h i ndex b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0 $33h 0 0 0 0 0 0 0 0 0 0 0 0 0 clksel thi s set t i ng set s t he cl ock f r equency i nput t ed t hr ough t he clk_i t er mi nal . be su r e t o execut e t hi s set t i ng bef or e r epr oduci ng t he mel ody. even i f cl ock of whi ch f r equency i s bei ng i nput t ed dur i ng r eset t i ng, i t i s ok. cksel [2:0] clock frequency (mhz) 0h 2.688 1h 19.200 2h 19.680 3h 19.800 4h 8.400 5h 14.400 6h 27.821 7h 12.600 $34h interrupt control def aul t : 0000h i ndex b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0 $34h 0 0 0 0 0 0 0 0 0 0 i r q e i r q poi nt the musi cal sco r e dat a i s t aken i nt o fi fo whi ch has a capaci t y f or 32 dat a. as t he sounds ar e r epr oduced, t he dat a i n fi fo ar e pr o cessed and del et ed. when t he am ount of dat a r em ai ni ng i n fi fo becom es l ess t han t he i rq poi nt set val ue, an i nt er r upt si gnal i s gener at ed. at t hi s poi nt , set "0 " f or i rqe and wr i t e t he cont i nui ng musi cal sco r e dat a i nt o fi fo . make su r e t hat t he wr i t t en dat a exceeds t he i rq poi nt . af t er wr i t i ng t he dat a, r eset "1 " f or i rqe and wai t unt i l anot her i nt er r upt si gnal i s gener at ed. i r q poi nt can set 32 ways f r om 0 ( em pt y) t o 31 ( 1 dat a vacancy) . i rqe i s enabl e bi t . set 1 f or enabl e. $35h speaker volume control $36h fm volume control $37h ear phone output volume control def aul t : 0000h index b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0 $35-7h 0 0 0 0 0 0 0 0 0 0 0 v4 v3 v2 v1 v0
YMU757 # # - 19 - t hese bi t s ar e used t o set t he vol um e of each sour ce. the vol um e set t i ng consi st s of 31 st eps and mut e f unct i on. i t i s p o ssi bl e t o set at 1db i nt er val s. as t he def aul t i s mut ed, cancel t he mut e f unct i on bef or e pr oceedi ng t o sound gener at i on. al so , t o r educe t he pow er , be su r e t o mut e t he vol um e subj ect t o pow er r educt i on bef or e sh i f t i ng. rel at i ons of r egi st er set t i ng val ue and vol um e. v[4:0] volume(db) v[4:0] volume(db) v[4:0] volume(db) v[4:0] volume(db) 00h mute 08h -23 10h -15 18h -7 01h -30 09h -22 11h -14 19h -6 02h -29 0ah -21 12h -13 1ah -5 03h -28 0bh -20 13h -12 1bh -4 04h -27 0ch -19 14h -11 1ch -3 05h -26 0dh -18 15h -10 1dh -2 06h -25 0eh -17 16h - 9 1eh -1 07h -24 0fh -16 17h - 8 1fh 0 $38h power management control def aul t : 001e h index b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0 $38h 0 0 0 0 0 0 0 0 0 0 0 ap4 ap3 ap2 ap1 dp thi s set t i ng i s used t o r educe t he pow er of each f unct i on. i t i s p o ssi bl e t o cont r ol 1 di gi t al syst em and 4 anal og syst em s i ndependent l y. ( for t he det ai l s, pl ease r ef er t o "p o w er - dow n cont r ol di vi si on di agr am ". ) set t i ng al l bi t s t o "1 " wi l l mi ni mi ze t he pow er of t he ent i r e lsi . dp : use of "1 " f or t hi s set t i ng wi l l r educe t he pow er of t he ent i r e di gi t al sect i on. ap1 : use of "1 " f or t hi s set t i ng wi l l r educe t he pow er of t he vref ci r cui t i n t he anal og sect i on. ap2 : use of "1 " f or t hi s set t i ng wi l l r educe t he pow er on t he non- i nver t ed am pl i f i er si de of t he fm vol um e, speaker vol um e, equal i zer ci r cui t and speaker out put sect i on. ap3 : use of "1 " f or t hi s set t i ng wi l l r educe t he pow er of t he i nver t ed am pl i f i er si de of t he speaker out put sect i on. ap4 : use of "1 " f or t hi s set t i ng wi l l r educe t he pow er of t he dac and ear phone out put vol um e. af t er i ni t i al i zat i on, t he pow er of t he anal og sect i on ( ap1 t o ap4) i s r educed.
YMU757 # # - 20 - power-down control division diagram as f or t he pow er - dow n, i t i s p o ssi bl e t o di vi de an i nsi de f unct i on sep ar at el y and t o cont r ol i t . the pow er - dow n i s cont r ol l ed by i ndex 38h. explanation of each bit dp i t i s t he bi t t o make t he pow er - dow n w hol e of t he di gi t al depar t ment . b ecause cl ock t o move i nsi de st ops consum pt i on el ect r i c cur r ent of t he di gi t al par t can be r est r ai ned i n mi ni mum. dat a on fi fo ar e cl ear ed t hough cont ent s of a r egi st er ar e hel d. ap1 i t i s t he bi t t hat t he pow er - dow n a vref ci r cui t decl i ne. i f ap1 i s set t o 1, t he w hol e of t he anal og par t st ops. b ecause an anal og cent er vol t age i s made by vref ci r cui t . ap2 i t i s t he bi t t o make pow er - dow n fm vol um e par t , eq ci r cui t , speaker vol um e, and non- r ever sal am pl i f i er si de of speaker out put par t . 6<1& # 6',1 # 6&/. # 2 567 # 2 ,54 # (4 4# 95() # 6huldo # , 2 ) # '9'' # '966 # 92/ # 65 vwhs # 3rzhu # grzq # &rqwuro # 5hjlvwhu # 5$0 # )0 # 6\qwkhvl]hu # # 7# vrxqgv # #### jhqhudwhg # vlpxowdqhrxvo\ # ## '$& # $03 # $9'' # $966 # 7lplqj # *hqhudwru # +3287 # 92/ # 65 vwhs # ),)2 # 49 e # [ #65 z # (4 # (4 5# (4 6# 63287 63287 95() # &rqwuroohg # e\ # xvlqj # '3 # elw # &rqwuroohg # e\ # xvlqj # $3 7# elw # &rqwuroohg # e\ # xvlqj # $3 6# elw # &rqwuroohg # e\ # xvlqj # $3 4# elw # &rqwuroohg # e\ # xvlqj # $3 5# elw # 92/ # 65 vwhs # &/.b, # 63966 #
YMU757 # # - 21 - ap3 i t i s t he bi t t hat t he pow er - dow n t he r ever sal am pl i f i er si de of t he speaker out put par t decl i ne. a r ever sal am pl i f i er si de i s st ar t ed af t er a vref ci r cui t and a non- r ever sal am pl i f i er ar e st ar t ed. a nd, i t depends, and pop noi se occur r ence can be r est r ai ned. ap4 i t i s t he bi t t hat pow er - dow n dac and t he hp vol um e par t . the at t en t i on poi nt when t he p ow er- dow n m oves. m ove f r om t he condi t i on t hat pr onunci at i on su r el y st ops f or t he pow er - dow n. i t i s p o ssi bl e t hat t he pow er - dow n a di gi t al and an anal og decl i ne at t he sam e t i me. b e su r e t o mut e fm vol um e and hp vol um e. i t i s t o r est r ai n t he noi se when pow er goi ng dow n. the r egi st er whi ch a di gi t al par t can' t access dur i ng t he pow er goi ng dow n i s as t he f ol l ow i ng. index register functions $00h note data $10-2fh tone data $30h timbre allotment $31h tempo data $34h irq control the at t en t i on poi nt t o can cel t he p ow er- dow n 1 the t i me of 64c lk _i i s necessar y bef or e a di gi t al par t r ever t s t o t he nor mal i t y af t er i t i s set up i n d p=0. be su r e t o do r egi st er access af t er you wai t f or t hi s t i me. 2 the f ol l ow i ng ar e pr ocedur e t hat r ever t f r om t he condi t i on i n anal og w hol e pow er - dow n and anal og pow er suppl y of f . ? ap1 i s set t o 0. vref st ands up at t he t i me of maxi mum 50m s. unt i l vref st ands up, don t set 0 t o ap2- ap4. ? ap2 i s set t o 0. ? ap3, ap4 ar e set t o 0 af t er mi ni mum 10s. ? an anal og par t becom es p o ssi bl e i t moves. ap4 i s set t o 1 when used onl y a speaker am pl i f i er par t ( hands f r ee phone) . ap2, 3 ar e set t o 1 when a speaker am pl i f i er i sn ' t used and onl y head phone i s used. a nd i t i s p o ssi bl e t hat el ect r i c cur r ent i s f ur t her r est r ai ned. anal og p ow er suppl y o ff mode onl y whi l e pr onunci at i on st ops, i t i s p o ssi bl e t hat an anal og pow er suppl y i s t ur ned of f . tur n of f an anal og pow er suppl y af t er ap1, ap2, ap3 and ap4 ar e set t o 1. i t has t he p o ssi bi l i t y t hat pop noi se occur s i f i t doesn' t do so .
YMU757 # # - 22 - the est abl i sh m en t exam pl e by t he use case. d ependi ng on how t he f unct i on i s used, bi t set t i ngs can be com bi ned as show n bel ow . ap1 ap2 ap3 ap4 precaution power reduction of entire analog section 1 1 1 1 be sure to set all volumes to "mute" first, then set all bits to "1" simultaneously. used for ear phone output only 0 1 1 0 set the fm and speaker volumes to "mute". used for speaker only (hand-free phone) 0 0 0 1 set the hp and fm volumes to "mute".
YMU757 # # - 23 - resetting thi s lsi can be i ni t i al i zed by set t i ng t he / rst t er mi nal t o "l " or t hr ough t he so f t war e as t he clr bi t i s pr ovi ded f or t he $32h set t i ng. when i ni t i al i zat i on i s execut ed, - al l t he r egi st er s wi l l be r eset t o t he def aul t st at e. - t he fi fo dat a count er wi l l be cl ear ed and fi fo wi l l be em pt y. i t i s necessar y t o i nput clk_i dur i ng r eset t i ng. make su r e t o i nput clk_i f or at l east 100 cl ocks dur i ng r eset t i ng. af t er r eset t i ng i s cancel l ed, wai t f or at l east 64 cl ocks of clk_i i nput and t hen st ar t maki ng an access t o r egi st er s. settings and procedure to generate melody fol l ow t he st eps as descr i bed bel ow / 1. set t he clksel ( $33h) accor di ng t o t he cl ock f r equency i nput t ed f or clk_i . 2. c ancel t he pow er - dow n m ode of t he anal og sect i on. ( ref er t o "r eset t i ng sequence of anal og sect i on" on page 21. ) 3. set t he t i mbr e dat a ( $10- 2fh) , t i mbr e al l ot ment dat a ( $30h) , t em po dat a ( $31h) and vol um es ( $35- 37h) as desi r ed. 4. ent er 32 musi cal sco r e dat a ( $00h) unt i l fi fo i s f ul l . 5. set t he i rq poi nt val ue of $34h. ( def aul t at t he cent er of fi fo ) . 6. set "1 " f or i rqe of $34h 7. set "1 " f or t he st bi t of $32h and st ar t t he mel ody. interrupt sequence an i nt er r upt f r om lsi ( / i rq- "l ") occur s when t he dat a am ount i n fi fo i s l ess t han t he set val ue. for exam pl e, supposi ng t hat 10h ( 16b) i s set f or t he i rq poi nt of $34h, fi fo i s f ul l wi t h t he dat a bef or e st ar t i ng t he mel ody as descr i bed above under "s et t i ngs and pr ocedur e t o gener at e mel ody". o nce t he mel ody i s st ar t ed, t he musi cal sco r e dat a i s pr o cessed and t he dat a i n fi fo r educes cont i nuousl y. when t he r em ai ni ng dat a am ount becom es 16 byt es or l ess, t he / i rq t er mi nal becom es "l " and an i nt er r upt si gnal i s t r ansm i t t ed t o t he ext er nal mi cr opr o cesso r . when an i nt er r upt si gnal i s d et ect ed, set "0 " f or i r q e and ent er t he m usi cal sco r e dat a i nt o fi fo bef or e i t becom es em pt y. as over wr i t i ng t he dat a i nt o t he f i l l ed fi fo i s pr ohi bi t ed, ent er t he dat a i nt o fi fo by t he am ount not causi ng over wr i t i ng ( 16 dat a i n t hi s case) .
YMU757 # # - 24 - flow chart execute each register setting following the steps described under "settings and procedure to generate melody". start the melody. as the sounds are produced, the musical score data are processed in the lsi. has the remaining data in fifo reduced to the ir no point specified by the $34h setting or less? yes set the irq enable bit (irqe) to "0" and enter the data into fifo, observing the following precautions. be sure to enter the data before fifo becomes empty. overwriting the data into the filled fifo is prohibited. do you want to stop the melody? no yes stop the melody. (st=0)
YMU757 # # - 25 - state transition description show n bel ow i s a st at e t r ansi t i on di agr am of t he y m u 757. sequence t o t urn on t he p ow er suppl y. i deal l y, t he di gi t al si de pow er suppl y shoul d be t ur ned on f i r st t o i ni t i al i ze t he har dw ar e, f ol l ow ed by t ur ni ng on of t he anal og si de pow er suppl y. i f t he anal og pow er suppl y i s t ur ned on when t he har dw ar e has not been i ni t i al i zed, noi ses may be gener at ed. ,qlwldol]hg # har dw ar e reset 6723 # 3/$< # 6wdqge\ # 3od\ # $qdorj # 3rzhu'rzq # prgh # pow er on di gi t al pow er on r eady :ulwh # 6hwxs # 'dwd # ),)2 # 'dwd # :ulwh ## 67$57 # 6723 ## anal og pow er on r eady pow er on 'ljlwdo # 3rzhu'rzq # prgh # pow er of f
YMU757 # # - 26 - expl ai ns about each st at us di gi t al p ow er on r eady i t i s t he condi t i on bef or e st ar t i ng a di gi t al pow er suppl y. h ard w are reset the di gi t al pow er suppl y has been t ur ned on. i mmedi at el y af t er i t has t ur ned on, al ways ent er t he har dw ar e r eset t i ng dat a. anal og p ow er on r eady i t i s t he condi t i on bef or e st ar t i ng a anal og pow er suppl y. tur n on t he anal og pow er suppl y af t er t he di gi t al sect i on has been i ni t i al i zed. anal og p ow er down mode i t i s t he st at e t hat t he consum pt i on el ect r i c pow er of t he anal og par t i s mi ni mum. af t er t he anal og pow er suppl y has been t ur ned on, t he ent i r e anal og sect i on i s i n t he pow er dow n st at e. i n or der t o pr oceed t o t he next st ep i ni t i al i zed st at e, use t he pr ocedur e descr i bed on page 20. the pow er of t he anal og sect i on has been r educed. the pow er consum pt i on of t he anal og sect i on can be r educed. be su r e t o t ake t he pr ocedur e t o r educe t he pow er of t he anal og sect i on f r om t he i ni t i al i zed st at e. ( that i s, each vol um e must be set t o "m u i te". ) i t i s p o ssi bl e t o sel ect t he poi nt wher e t he pow er i s r educed dependi ng on t he use pur pose. for t he det ai l s, r ef er t o "p o w er - dow n sequence" on pages 20 and 21. to t ur n of f t he anal og pow er suppl y, al ways t ake t he necessar y pr ocedur e f r om t hi s st at e. in i t i al i zed b ecom es t hi s st at e when i t com es out of t he pow er dow n m ode of t he anal og par t , t he di gi t al par t . a nd, move t o t he pow er dow n m ode f r om t hi s st at e. st o p the vol um e mut i ng f unct i on has been cancel l ed and t he t i mbr e dat a set t i ngs have been com pl et ed. i n t hi s st at e, fi fo i s em pt y. thi s st at e i s r est or ed when t he mel ody r epr oduct i on i s st opped. al so , t he pr ocedur e t o r educe t he pow er of t he di gi t al sect i on can be t aken f r om t hi s st at e. thi s st at e wi l l be r est or ed when t he pow er - dow n f unct i on i s cancel l ed. play st andby wr i t i ng t he musi cal sco r e dat a i nt o fi fo has been com pl et ed and r eady f or mel ody r epr oduct i on. set t i ng "1 " f or t he st bi t wi l l set f or t he next pla y m ode. i t i s p o ssi bl e t o t ake t he pr ocedur e t o r educe t he pow er of t he di gi t al sect i on f r om t hi s st at e. however , t he sto p st at e w i l l be r est or ed af t er t he pow er - dow n f unct i on i s cancel l ed. play the m el ody i s b ei ng r epr oduced. set t i ng 0 f or t he st bi t wi l l set t o t he sto p m ode. i t i s p r ohi bi t ed t o change t he di gi t al sect i on f r om t hi s m ode t o t he pow er dow n m ode. ( i t may cause noi ses t o occur . ) di gi t al p ow er down mode the pow er of t he di gi t al sect i on has been r educed. ( "1 " set f or dp bi t ) as cl ocks ar e not i nput t ed i nsi de of t he lsi even w hen t hey ar e i nput t ed t o t he c lk _i t er mi nal , pow er consum pt i on of t he di gi t al sect i on can be r educed. bef or e pr oceedi ng t o t hi s m ode, set bot h hp vol um e and fm vol um e t o "m u t e ".
YMU757 # # - 27 - operation in fifo empty state i f fi fo has becom e em pt y dur i ng r epr oduct i on, t he musi cal sco r e dat a wr i t t en l ast i s pr o cessed cont i nuousl y unt i l t he next dat a i s ent er ed. i f t he l ast wr i t t en dat a i s a not e dat a, t hat not e i s r epr oduced cont i nuousl y. i f t he l ast wr i t t en dat a i s a r est dat a, t he r est st at e wi l l be mai nt ai ned. reproduction method assuming occurrence of empty state i n t he or di nar y m el ody r epr oduct i on, i t i s p r ohi bi t ed t o al l ow t he fi fo em pt y st at e t o occur . however , ut i l i zi ng t he above f eat ur e enabl es shor t sounds pr oduced easi l y. the i nt er r upt f unct i on w oul d not be necessar y. to have shor t sounds pr oduced, f ol l ow t he st eps as descr i bed bel ow . shor t sounds ar e appl i cabl e t o 1 t o 32 wor d dat a bl ock. i f t he dat a bl ock exceeds 33 wor ds, use t he r egul ar r epr oduct i on pr ocedur e ut i l i zi ng t he i nt er r upt f unct i on. 1) compl et e t he pr ocedur e of pow er on - - > anal og pow er down m ode - - i ni t i al i zed - - > sto p i n advance. ( pl ease r ef er t o "s t at e t r ansi t i on descr i pt i on" di agr am on page 25. ) 2) st ar t r epr oduct i on i n t he fi fo em pt y st at e. 3) wr i t e t he dat a bl ock t o be r epr oduced i nt o fi fo . 4) i mmedi at el y af t er wr i t i ng ( af t er 0 t o 20us) , t h e m u si cal sco r e dat a ar e pr o cessed i nt er nal l y and r epr oduct i on i s st ar t ed. as r epr oduct i on goes on, t he dat a i n fi fo ar e pr o cessed and cl ear ed. 5) when fi fo becom es em pt y, i f t he l ast dat a i n t he dat a bl ock i s a not e dat a, t hat not e i s r epr oduced cont i nuousl y and i f i t i s a r est dat a, t he r est st at e i s r et ai ned unt i l t he next dat a bl ock i s wr i t t en i nt o fi fo . 6) when r epr oduci ng t he next dat a bl ock, go t o st ep 3) . to st op r epr oduct i on, set "0 " f or st. then t he dat a count er of fi fo wi l l be cl ear ed and t he st at e as descr i bed i n st ep 1) wi l l be r est or ed.
YMU757 # # - 28 - example of system connection sclk sdin sync dvss dvdd YMU757 /rst +3.0v reset# sync sdin sclk clk_i clk avdd avss /irq irq# spout1 spout2 vref 0.1f eq1 eq2 c1 eq3 r1 r2 c2 hpout headphone ain +3.0v 0.1f 4.7f 0.1f 4.7f spvss
YMU757 # # - 29 - one sound and volume level adjustment in 4 sound pronunciation the vol um e l evel out put t ed f r om dac by t he num ber of t he pr onunci at i on i s di f f er ent . when 1 sound ( *) i s out put t ed f r om fm sound sour ce, out put vol t age am pl i t ude f r om dac i s 0. 375v p- p. when mor e t han one sound i s p r onounced at t he sam e t i me, out put vol t age am pl i t ude var i es i n t he phase of each wave shape. but , when t h e w av e sh ap e o f t h e sam e p h ase p i l es up, i t becom es 0. 75v p- p by 2 sound, 1. 125v p- p by 3 sound, 1. 5v p- p by 4 sound. ( *: the vol um e adj ust ment ( tot al level of car r i er ) of 1 sound i s bei ng expl ai ned wi t h t he pr em i se of 0db . ) an a ssu m p t i on i n 300m w out put . out put pow er f r om t he speaker i s 300m w when rl i s ; - and a vol t age bet w een spout1 and 2 i s 1. 55v r ms. btl out put am pl i t ude at t hi s t i me becomes 1. 5521. 414=4. 38v pp, and becom es 4. 38/ 3. 8=1. 15v pp w i t h t he eq 3 t er mi nal . ( gai n wi t h t he speaker am pl i f i er i s +11. 6db = 3. 8 t i mes. ) s ecu ri ng a vol um e l evel by one sound. gai n adj ust ment i n t he par t eq am pl i f i er i s r ecom m ended as t he way of secur i ng a vol um e l evel by one sound. gai n depends on t he r esi st ance r at i o of r1 and r2, and i t i s gai n=r2/ r1. gai n t o r ecom m end i s about f our t i mes f r om t hr ee t i mes. + dac r1 vref fm vol hp vol hpout eq 1 eq 2 eq 3 r2 sp vol btl dr i ver +11. 6db spout1 spout2 rl=8 - fm sound
YMU757 # # - 30 - a l evel adj ust ment recom m en d at i on exam p l e i n al l fm vol um e or ei t her of sp vol um es i s a l i t t l e squeezed as a def aul t ( f r om C3db t o - 6db ) . when a user adj ust s vol um e, i t i s consi der ed cont r ol l i ng ei t her fm or sp vol um e. at t hi s t i me, because t he si de whi ch gai n i s r ai sed t o i s secur ed i n advance, ei t her of fm vol um e or sp vol um es i s a l i t t l e squeezed as a def aul t . i t i s r ecom m ended maki ng gai n of t he par t eq am pl i f i er about 3 - 4 t i mes t o secur e t he out put l evel f or whi ch t o be one sound ( for exam pl e, r 1=22k - , r 2=82k - ) . when one sound i s pr onounced under t hi s condi t i on( fm vol um e as 0db ) , eq 1 i s 0. 375v p- p. i n t hi s st at e, i f set gai n=f our t i mes i n eq am pl i f i er , eq 3 becom es 1. 5v p- p. when i t i s set up i n - 4db wi t h spv o l, vol t age bet w een spout1 and 2 becom es 3. 6v p- p, and can be get out put pow er 162m w wi t h t he speaker + 5/ ; - ,1 a l evel adj ust ment of f our sound pronunci at i on si mul t aneousl y when usual musi c i s r egener at ed, t he am pl i t ude of dac never al most sw i ngs t o 1. 5v p- p. ther ef or e, t her e i s no hi ndr ance by t he set up of gai n whi ch i s t he sam e as 1 sound. adj ust i t wi t h fm , sp vol um e i f you r est r ai n gai n of t he par t eq am pl i f i er a l i t t l e when you ar e anxi ous about t he di st or t i on of t he sound. a l evel adj ust ment of hpout adj ust i t out si de t he lsi when you r ai se gai n on t he hpout si de.
YMU757 # # - 31 - sound quality correction circuit i t i s p o ssi bl e t o cor r ect t he sound qual i t y and gai n by usi ng an ext er nal ci r cui t connect ed t o eq 1 t o 3 t er mi nal s. a ci r cui t st r uct ur e of eq 1 t o 3 t er mi nal i nsi de and exam pl e of ext er nal ci r cui t ar e as f ol l ow s. gai n and f i l t er char act er i st i c ar e adj ust ed by val ue of c1, c2, r1 and r2. gai n = r2 / r1. r ecom m endat i on of r1 i s 22k w and r2 i s 82k w ( gai n = 3. 7 t i mes) . cut of f f r equency f 1 and f 2 of f i l t er i s as f ol l ow s. i 4 42#+5 ? r 1c 1) . i 5 42#+5 ? r 2c 2) . r ecom m endat i on of each val ue ar e as f ol l ow s. i f c1=0. 022f and c 2=120pf, cut of f f r equency f 1=330h z and f 2=16kh z. mor eover , t he ci r cui t encl osed wi t h t he dot t ed l i ne becom es necessar y w hen an anal og si gnal i s i nput t ed f r om a i n and i t want s t o mi x i t . the l evel adj ust ment t hat i t i s mi xed depends on t he r esi st ance r at i o r2/ rx of rx and r2. 7kh # ydoxh # ri # 5[ # zkhq # lw # zdqwv # wr # pl[ # lw # lq # wkh # dpsolwxgh # ri # rqh # wlph # ri # $,1 # lv #;5 n - 1 f 1 f 2 gai n1 gai n1 - 3db gai n fr eq + vref eq 2 eq 3 fm vol eq 1 r1 r2 c2 c1 rx c3 ai n
YMU757 # # - 32 - i f add r esi st er r3, f r equency char act er i st i c i s as f ol l ow s. gai n1= ( r2+r3) / r1. gai n2=r 3/ r1. cut of f f r equency f 1 and f 2 of f i l t er i s as f ol l ow s. i 4 42#+5 ? r1c1) . i 5 42#+5 ? r2c2) . f 1 f 2 gai n1 gai n1- 3db gai n fr eq + vref eq 2 eq 3 fm vol eq 1 r1 r2 c2 c1 r3 gai n2
YMU757 # # - 33 - serial i/f specifications the y m u 757 i s cont r ol l ed t hr ough t he t hr ee ser i al i nt er f aces sclk , sync and sd i n. about t he rel at i ons bet w een sd in and sc l k the val ue of sd i n i s t aken i n t he i nsi de of t he lsi at t he sclk r i se. i nput sd i n so t hat set up/ hol d t i me i s secur ed t o r i se edge of sclk . ( ref er t o t he ac char act er i st i cs of t he el ect r i c char act er i st i cs f or t he det ai l s of t he t i mi ng speci f i cat i on. ) about sd in the f i gur e above show s no dat a t r ansm i ssi on bet w een i ndex dat a and c ont r ol dat a but i t m eans not hi ng pr obl em at i c. 24 bi t cont i nuous dat a t r ansm i ssi on i s al so p o ssi bl e. when t r ansm i t t i ng t he dat a by 8- bi t uni t , t r ansm i t t he upper 8 bi t s and l ow er 8 bi t s of t he cont r ol dat a sep ar at el y. ther e i s no par t i cul ar speci f i cat i on f or t he i nt er val bet w een t he end of t r ansm i ssi on of t he upper 8 bi t s and st ar t of t r ansm i ssi on of t he l ow er 8 bi t s. however , t he l onger t he i nt er val i s, t he l onger t i me one t r ansm i ssi on t akes. when ent er i ng t he musi cal sco r e dat a i nt o fi fo , use car e not t o make fi fo em pt y. about sync i t can cor r espond t o type1 and type2 of t he upper f i gur e. when r i se edge of sync occur s i nsi de t he lsi , i t consi der s t hat t he dat a t r ansf er of one t i me was com pl et ed. sd i n f or 24sc lk j ust bef or e r i se edge of sync occur s i s j udged val i d dat a. ( sd i n f or 16sc lk ar e val i d dat a when t r ansf er onl y c ont r ol dat a. ) ther e i s no r egul at i on speci al l y about t he l engt h of t he h per i od. but , l per i od i s t o make 100ns be secur ed at l east i n t he case of t he type2 wave shape i t has t he p o ssi bi l i t y t hat f aul t y oper at i on i s caused when r i se edge of sync and f al l edge of sclk appr oach i t . gi ve car ef ul consi der at i on t o r i se edge of sclk doesn t occur t ow ar d r i se edge of sync. about t he dat a t ran sf er onl y cont rol dat a. i f i nput sd i n f or sc lk 16 bet w een r i se ed g e o f sy n c and next r i se ed g e o f sync, t he i nsi de of t he lsi i s j udged i t i s musi c dat a ( $00h) and t ake i t . sc lk 8 cl k 16 cl k sync t ype1 sd i n msb lsb msb lsb i ndex dat a ( 8bi t ) cont r ol dat a ( 16bi t ) 6 # 7 # 1 # 0 # 15 # 1 # 0 # msb 6 # 7 # sync t ype2
YMU757 # # - 34 - electrical characteristics 1. absol ut e maxi mum r at i ngs parameter symbol min. max. unit power supply voltage (analog) av dd -0.3 4.2 v power supply voltage (digital) dv dd -0.3 4.2 v analog input voltage v ina -0.3 av dd +0.3 v digital input voltage v ind -0.3 dv dd +0.3 v operating temperature t op -20 85 c storage temperature t stg -50 125 c note) dv ss = av ss = spv ss = 0v 2. r ecom m ended oper at i ng condi t i ons parameter symbol min. typ. max. unit operating voltage (analog) av dd 2.7 3.0 3.3 v operating voltage (digital) dv dd 2.7 3.0 3.3 v operating temperature t op -20 25 85 c note) dv ss = av ss = spv ss = 0v 3. dc char act er i st i cs parameter symbol condition min. typ. max. unit high-level input voltage v ih1 *1 0.7 dv dd - - v low-level input voltage v il1 *1 - - 0.2 dv dd v high-level output voltage v oh i out = -1ma 0.8 dv dd - - v low-level output voltage v ol i out = 1ma - - 0.4 v schmitt width vsh 1.0 v input leakage current il -10 10 a input capacity ci 10 pf note) t op =-20~85c, dv dd =3.00.3v, capacitor load=50pf
YMU757 # # - 35 - 4. ac char act er i st i cs i nput vi h=0. 8v dd, vi l=0. 1v dd as i nput si gnal . m easur e t i mi ng at vi h=0. 7v dd, vi l=0. 2v dd. 4- 1. clk_i , reset parameter symbol min. typ. max. unit clk_i clock cycle period tcclk_period 35.8 ns clk_i "l" pulse width tcclk_low 12 ns clk_i "h" pulse width tcclk_high 12 ns /rst active "l" pulse width trst_low 100 clk_i sclk start delay time (after /rst inactive) trst2clk 64 clk_i note) t op =-20~85c, dv dd =3.00.3v, capacitor load=50pf x clk_i means the number of clocks inputted through the clk_i terminal. clk_i dut y har dw ar e reset / rst sc lk tr st 2cl k tr st _l ow v i l clk_i t ccl k_l ow t ccl k_hi gh t ccl k_per i od 0. 8v dd 0. 7v dd 0. 1v dd 0. 2v dd
YMU757 # # - 36 - 4- 2. ser i al i nt er f ace parameter symbol min. typ. max. unit sclk clock period tclk_period 430 - ns sclk "l" pulse width tclk_low 200 ns sclk "h" pulse width tclk_high 200 ns sclk rise time trise_clk - - 20 ns sclk fall time tfall_clk - - 20 ns sync "h" pulse width tsync_high 100 - ns sync rise time trise_sync - - 20 ns sync fall time tfall_sync - - 20 ns sync delay time tdelay_sync 0 ns sync l pulse width sync_low 100 - - ns sync > sdin setup time tsetup_sync 50 - - ns sdin setup time tsetup_sdin 50 - - ns sdin hold time thold_sdin 50 - - ns sdin rise time trise_din - - 20 ns sdin fall time tfall_din - - 20 ns note) t op =-20~85c, dv dd =3.00.3v, capacitor load=50pf 6&/. # 7fonborz # 7fonbkljk # 7fonbshulrg # 7ulvhbfon # 7idoobfon # 7idoobv\qf # 7ulvhbv\qf # 6<1& # 7v\qfbkljk # 6',1 # 7idoobglq # 7ulvhbglq # # 7krogb6',1 # 7vhwxsb6',1 # 7ghod\b6<1& # 6<1& # 6<1&borz # # 7vhwxsb6<1& # 6&/. # 6',1 #
YMU757 # # - 37 - 5. pow er consum pt i on parameter min. typ. max. unit during normal operation (digital) 500 2000 a during no output sound(analog) 9 12 ma output 300mw (analog) (rl=8 w ) 200 300 ma in power-down mode 0.1 1 a note) t op =-20~85c, dv dd = av dd =3.00.3v, capacitor load=50pf 6. anal og char act er i st i cs sp ampl i f i er parameter min. typ. max. unit gain setting (fixed) 1.9 times minimum resister load (rl) 8 w full-scale analog output(rl=8 w ) 5.0 vp-p maximum output power (rl=8 w ,thd+n<=0.05%) 360 mw maximum output power (rl=8 w ,thd+n<=1.0%) 400 mw thd + n (rl=8 w ,f=1khz,300mw output) 0.025 % noise level(no signal, f= 400hz - 20khz) -90 dbv psrr (f=1khz) 65 db note) t op =25c, dvdd = avdd = 3.0v e q ampl i f i er parameter min typ max. unit gain setting range 30 db maximum output current 120 a full-scale analog output 1.5 vp-p thd + n ( f=1khz) 0.01 % noise level (no signal, f= 400hz - 20khz) -90 dbv input impedance 10 m w psrr (f=1khz) 36 db note) t op =25c, dvdd = avdd = 3.0v sp vol um e parameter min typ max unit volume setting range -30 0 db volume step width 1 db noise level (no signal, f= 400hz - 20khz) -90 dbv thd + n ( f=1khz) 0.01 % note) t op =25c, dvdd = avdd = 3.0v
YMU757 # # - 38 - fm vol um e parameter min typ max unit volume setting range -30 0 db volume step width 1 db noise level (no signal, f= 400hz - 20khz) -90 dbv maximum output current 120 a full-scale analog output 1.5 vp-p output impedance 300 600 w psrr (f=1khz) 36 db note) t op =25c, dvdd = avdd = 3.0v h p vol um e parameter min typ max unit volume setting range -30 0 db volume step width 1 db noise level (no signal, f= 400hz - 20khz) -90 dbv maximum output current 120 a full-scale analog output 1.5 vp-p output impedance 300 600 w psrr (f=1khz) 36 db note) t op =25c, dvdd = avdd = 3.0v vref parameter min typ max unit vref voltage 1.4 1.5 1.6 v note) t op =25c, dvdd = avdd = 3.0v dac parameter min typ max unit resolution 12 bit full-scale analog output (*) 1.5 vp-p thd+n (f= 1khz) 0.5 % noise level (no signal, f=400hz - 20khz) -90 dbv frequency characteristic (f=50hz - 20khz) -0.5 +0.5 db note) t op =25c, dvdd = avdd = 3.0v * when it was made to pronounce fm 4 sound at the same time in the same phase.
YMU757 # # - 39 - s peaker am pl i f i r e thd+n vs out put pow er 0. 0100 0. 1000 1. 0000 10. 0000 0 100 200 300 400 500 out put pow er ( mw ) thd+n (%) s peaker am pl i f i r e fr equency char act er i st i cs vs psr r - 80. 00 - 70. 00 - 60. 00 - 50. 00 - 40. 00 - 30. 00 - 20. 00 - 10. 00 0. 00 10 100 1000 10000 100000 fr equency ( hz) psrr (db) $9'' 613 9 # 5/ # #; w # i 4 n+] # $9'' 613 9 # 5/ # #; w #
YMU757 # # - 40 - general description of fm sound generator "f m " st ands f or fr equency m odul at i on. the fm sound gener at or ut i l i zes t he hi gher har m oni c wave pr oduced by t he f r equency m odul at i on f or syn t hesi s of t he musi cal sounds as use of t hi s fm syst em enabl es a com par at i vel y si mpl e ci r cui t t o pr oduce su ch wavef or m t hat has a har m oni c wave i ncl udi ng di sh ar m oni ous sounds, i t i s p o ssi bl e t o cr eat e a w i de r ange of sounds f r om t he synt hesi zed sounds of t he nat ur al musi cal i nst r um ent s t o t he el ect r oni c sounds. the di agr am bel ow show s t he most basi c conf i gur at i on of t he fm syst em . the "o per at or " r ef er s t o t he sect i on w her e a si ne w ave i s g en er at ed and t he com bi nat i on of t he oper at or s i s cal l ed "al gor i t hm ". the oper at or i n t he f r ont st age i s cal l ed "m odul at or " and t hat i n t he r ear st age "car r i er ". e ach oper at or i s capabl e of set t i ng t he f r equency and t he envel ope wavef or m. the conf i gur at i on i n t he above di agr am can be expr essed i n t he f or mul a as f ol l ow s. fm ( t ) = a si n( w ct + b si n w mt ) a : ampl i t ude of t he car r i er . b : ampl i t ude of t he m odul at or . w : angl e f r equency of t he car r i er wm : angl e f r equency of t he m odul at or i n addi t i on, a syst em cal l ed "f eedback fm " i s avai l abl e t o cr eat e a wi der r ange of sounds. i n t hi s syst em , t he f r equency m odul at i on i s f ed back as show n i n t he di agr am i n t he f ol l ow i ng page. b i s cal l ed "f eed- back r at i o". usi ng t he f eed- back fm f unct i on, i t i s p o ssi bl e t o pr oduce t he st r i ngs t ype sounds. & m 3kdvh # *hqhudwru # 2shudwru #4#=# 0rgxodwru # , # 2shudwru #5#=# &duulhu # # f # i # 6lq # :dyh # 7deoh # # f # 3kdvh # *hqhudwru # $ 6lq # :dyh # 7deoh # (qyhorsh # *hqhudwru # (qyhorsh # *hqhudwru # 5
YMU757 # # - 41 - external dimensions # ## not e) the su r f ace i nst al l ed lsi ' s r equi r e speci al pr ecaut i ons when st or i ng and so l der i ng t hem . pl ease cont act t he yamaha deal er f or i nf or mat i on f or pr oper handl i ng.
YMU757 # # - 42 - # i m portant noti ce 1. yamaha r eser ves t he r i ght t o make changes t o i t s pr oduct s and t o t hi s docum ent wi t hout not i ce. the i nf or mat i on cont ai ned i n t hi s docum ent has been car ef ul l y checked and i s b el i eved t o be r el i abl e . however , yamaha assu m es no r esponsi bi l i t i es f or i naccur aci es and makes no commi t ment t o updat e o r t o keep cur r ent t he i nf or mat i on cont ai ned i n t hi s docum ent . 2. t hese yamaha pr oduct s ar e desi gned onl y f or commer ci al and nor mal i ndust r i al appl i cat i ons, and ar e not su i t abl e f or ot her uses, such as m edi cal l i f e suppor t equi pm ent , nucl ear f aci l i t i es, cr i t i cal car e equi pm ent or any ot her appl i cat i on t he f ai l ur e of whi ch coul d l ead t o deat h, per so n al i nj ur y o r envi r onm ent al or pr oper t y dam age. use of t he pr oduct s i n any such appl i cat i on i s at t h e cu st om er ' s so l e r i sk and expense. 3. yam aha assum es no li abi li ty for i nci dental, consequenti al or speci al dam ages or i njury that may result fr o m mi sa ppli cati on or i m proper use or operati on of the products. 4. yam aha m akes no w arranty or representati on that the products are subject to i n tellectu a l pro perty li cense from yam aha or anythi rd pa rty , and yam aha m akes no w arranty or representati on of non- i nfri ngem ent w i th respect to the products. yam aha speci fi ca lly excludes any li abi li ty to the custom er or any thi rd pa rty ari si ng fr o m or related to the products' i nfri ngem ent of any thi rd party' s i ntellectual property ri ghts, i ncludi ng the patent, copyri ght, tradem ark or trade secret ri ghts of any thi rd pa rty . 5. ex am ples o f u se d escri bed herei n are m erely to i ndi cate the characteri sti cs and perform ance of yam aha products. yam aha a ssu m es no responsi bi li ty for any i ntellectual property clai m s or other problem s that m ay result from appli cati ons based on the exam ples descri bed herei n. yam aha m akes no w arranty w i th respect to the products, ex press o r i mpli ed , i ncludi ng, but not li mi ted to the w arranti es of m erchantabi li ty, fi tn ess fo r a pa rti cular use and ti tle. not e) the speci f i cat i ons of t hi s pr oduct ar e su b j ect t o change wi t hout not i ce. $jhqf\ # $gguhvv # lqtxlulhv # wr = $gguhvv # lqtxlulhv # wr = $gguhvv # lqtxlulhv # wr = $gguhvv # lqtxlulhv # wr =# sem i conduct or sal es & m arket i ng depart ment j # +hdg # 2iilfh #536/# 0dwvxqrnlmlpd /# 7r\rrnd 0 pxud /# ,zdwd 0 jxq /# 6kl]xrnd 0 nhq /#76;034<5# 7ho 1#.;4086<09507<4;# # )d[ 1#.;4086<09508387# j # 7rn\r # 2iilfh # 504:044/# 7dndqdzd /# 0lqdwr 0 nx /# 7rn\r /#43;0;89;# 7ho 1#.;406087;;08764# # )d[ 1#.;406087;;083;;# j # 2vdnd # 2iilfh # 1dqed # 7vx]lprwr # 1lvvhl # %ogj 1#7 ) # 404604:/# 1dqedqdnd /# 1dqlzd 0 nx /# 2vdnd # &lw\ /# 2vdnd /#88903344# 7ho 1#.;40909966069<3 ##### )d[ 1#.;40909966069<4# j # 8 1 6 1 $ 1# 2iilfh # <$0$+$ # 6\vwhpv # 7hfkqrorj\ 1# 433# &hqwxu\ # &hqwhu # &rxuw /# 6dq # -rvh /# &$ <8445# 7ho 1#.4073;079:05633# # )d[ 1#.4073;076:0;:<4 #

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