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mo sa MS6853 m ono 1.9w / stereo 300mw power amplifier r e v 1 1 www.m o sanalog.com mono 1.9w / stereo 300mw power amplifier low voltage operation, pop noise free features ? operat i on range: 2.7v~ 5 .5v ? shut down c u rrent 18ua at 5v ? out put power, thd+n=1% btl, r l =3 ? , 2.1w at 5v btl, r l =4 ? , 1.9w at 5v, 500m w at 2.7v btl, r l =8 ? , 1.2w at 5v, 350m w at 2.7v se, r l =8 ? , 300m w at 5v, 85m w at 2.7v se, r l =32 ? , 90m w at 5v, 25m w at 2.7v ? headphone sense ? uni t y -gai n st abl e , pop noi se free ? space-saving msop10 (enhance therm a l pad), tssop14 applications ? deskt op com put er?s sound card ? port abl e audi o devi ces ? pda?s ? handhel d gam e s ? c o m m uni cat i on headset s ? cross-reference: ssm 2250, lm 4853 description th e m s 685 3 is a l o w d i st o r tio n p o w e r am p lif ier th at can dr iv e a set o f 1 . 9w o f con tinuo us av er ag e pow er in to a m o no 4 ? b r i d ge d-t i e d l o a d (b tl ) or 2 * 90m w i n t o st ere o 3 2 ? si ngl e en de d (s e) l o a d s h eadp h one . it ca n a u t o m a tically switch b e tween m o n o btl an d stereo se m o d e s u tilizin g a h e ad pho n e sen s e p i n . the btl configuratio n elim in at es th e n e ed for extern al co up ling cap acitors o n th e o u t p u t i n mo st app licatio ns. th e u n ity g a in stab le ms685 3?s g a in is set by ext e rnal gai n -set t i ng resi st ors. the m s 6853 has good feat ure for port a bl e equi pm ent , t h ese feat ures i n cl ude t h e l o w vol t a ge operat i on, m i cropower consum pt i on shut down m ode, enhance t h erm a l pad and sm al l package m s op10, tssop14, m a ke t h e m s 6853 i d eal l y sui t e d for use i n port a bl e di gi t a l audi o equi pm ent s . block diagram s h ut do w n a2 - + l- i n gnd v dd byp as s r- i n btl out+ r - out l - out / btl out- hp - i n v dd mono / st er eo m ode swit ching c i r c uit r y a3 - + a1 - + v dd c l i ck/ po p redu c t ion bias
mo sa MS6853 m ono 1.9w / stereo 300mw power amplifier r e v 1 2 www.m o sanalog.com pin configuration symbol msop10 pin tssop14 pin description l-in 1 2 left channel i nput shutdow n 2 3 shutdow n places the entire device in shutdown m ode when held low. ttl com p atible input. h p - i n 3 4 headphone i nput det ect i on. a l ogi cal l o w set s se m ode, a l ogi cal hi gh set s b tl m ode. g n d 4 5 g r o u n d r -in 5 6 r i ght channel i nput r - out 6 9 r i ght channel out put by pass 7 10 b y pass i s t h e cap t o t h e vol t a ge di vi der for i n t e rnal m i d-suppl y bi as. thi s t e rm i n al shoul d be connect ed t o a 0.1-f t o 10-f capaci t o r c bp . btl out+ 8 1 1 brid g e d - tied lo ad p o s itiv e o u t p u t v d d 9 1 2 suppl y vol t a g e l-out/btl out- 1 0 1 3 left channel out put or bri dged-t i e d l o ad negat i v e out put n c - 1 , 7 , 8 , 1 4 n o connect e d msop10 l-out / b t l ou t- 6 7 8 9 1 0 2 3 4 1 l-i n sh ut d o w n hp - i n gn d 5 r- i n v dd btl out + b ypas s r- o u t thermal pa d ms 68 53 tssop14 l-o u t / b t l ou t- 10 11 12 13 14 2 3 4 1 l- in s hut down hp- i n gnd 5 r-i n v dd bt l ou t + bypass r-o u t 9 6 8 7 nc nc nc nc ms 685 3 ordering information package part number packaging marking t ransport media 10-pi n m s op m s 6853m tr 6853 3.5k uni t s tape and r eel 10-pi n m s op m s 6853m u 6853 80 uni t s tube 10-pi n m s op (l ead free) m s 6853m gtr 6853g 3.5k uni t s tape and r eel 10-pi n m s op (l ead free) m s 6853m gu 6853g 80 uni t s tube 14pi n tssop m s 6853ttr m s 6853 2.5uni t s tape and r eel 14pi n tssop m s 6853tu m s 6853 98uni t s tube 14pi n tssop (l ead free) m s 6853tgtr m s 6853g 2.5uni t s tape and r eel 14pi n tssop (l ead free) m s 6853tgu m s 6853g 98uni t s tube
mo sa MS6853 m ono 1.9w / stereo 300mw power amplifier r e v 1 3 www.m o sanalog.com absolute maximum ratings symbol p a r a m e t e r r a t i n g u n i t v dd s u p p l y vol t a g e 6 v v esd el ect rost at i c handl i ng 3500 v t stg st orage t e m p erat ure range -65 t o 150
t a operat i ng am bi ent t e m p erat ure range -40 t o 85
t j m a xi m u m junct i on t e m p erat ure 150
t s sol d eri ng t e m p erat ure, 10 seconds 260
r thja therm a l resistance from juncti on to am bient in free air m s op10 (enhance t h erm a l pad) tssop14 50 150
/w operating ratings s y m b o l p a r a m e t e r m i n t y p m a x u n i t v dd suppl y vol t a ge 2.7 5 5.5 v 5v electrical characteristics ta = 25c , v dd =5v, f=1khz, b w <30khz, unl ess ot herwi s e speci fi ed. s y m b o l p a r a m e t e r c o n d i t i o n s min t y p m a x u n i t btl mode, v in =0v, i o = 0 a - 2 . 4 - m a i q quiescent current se m ode, v in =0v, i o = 0 a - 1 . 6 - m a i sd shut down current sd m ode, v sd =v dd 1 8 u a v sdh shut down i nput vol t a ge hi gh 2.0 - - v v sdl shut down i nput vol t a ge l o w - - 0.8 v c s c h annel separat i o n se m ode, r l =32 ? 1 0 0 1 1 0 - db c bp =1uf, f=100hz - 48 - db psr r power suppl y reject i on rat i o c bp =10uf, f=100hz - 64 - db - - 7 3 - 6 8 db thd+n tot a l harm oni c di st ort i on pl us noi se se m ode, r l =32 ? , 60m w - 0 . 0 2 2 0 . 0 4 % s/ n si gnal - t o -noi se rat i o se m ode, a-wei ght i ng 90 95 - db btl mode, r l = 3 ? thd+n = 1% - 2 . 1 - w btl mode, r l = 4 ? thd+n = 1% - 1 . 9 - w btl mode, r l = 8 ? thd+n = 1% - 1 . 2 - w se m ode, r l =8 ? thd+n = 1% - 3 0 0 m - w p o o u t put p o w e r se m ode, r l = 32 ? thd+n = 1% - 9 0 m - w
mo sa MS6853 m ono 1.9w / stereo 300mw power amplifier r e v 1 4 www.m o sanalog.com 3.3 v electrical characteristics ta = 25c , v dd =3.3v, f=1khz, b w <30khz, unl ess ot herwi s e speci fi ed. s y m b o l p a r a m e t e r c o n d i t i o n s min t y p m a x u n i t btl mode, v in =0v, i o = 0 a - 2 . 1 - m a i q quiescent current se m ode, v in =0v, i o = 0 a - 1 . 5 - m a i sd shut down current sd m ode, v sd =v dd - 1 2 - u a c s c h annel separat i o n se m ode, r l =32 ? 1 0 0 1 1 0 - db c bp =1uf, f=100hz - 48 - db psr r power suppl y reject i on rat i o c bp =10uf, f=100hz - 67 - db - - 7 0 - 6 5 db thd+n tot a l harm oni c di st ort i on pl us noi se se m ode, r l =32 ? , 25m w 0 . 0 3 2 0 . 0 5 6 % s/ n si gnal - t o -noi se rat i o se m ode, a-wei ght i ng 89 94 - db btl mode, r l = 4 ? thd+n = 1% - 0 . 8 3 - w btl mode, r l = 8 ? thd+n = 1% - 0 . 5 4 - w se m ode, r l =8 ? thd+n = 1% - 1 2 5 m - w p o o u t put p o w e r se m ode, r l = 32 ? thd+n = 1% - 4 3 m - w 2.7 v electrical characteristics ta = 25c , v dd =2.7v, f=1khz, b w <30khz, unl ess ot herwi s e speci fi ed. s y m b o l p a r a m e t e r c o n d i t i o n s min t y p m a x u n i t btl mode, v in =0v, i o = 0 a - 2 - m a i q quiescent current se m ode, v in =0v, i o = 0 a - 1 . 4 - m a i sd shut down current sd m ode, v sd =v dd - 7 . 5 - u a c s c h annel separat i o n se m ode, r l =32 ? 1 0 0 1 1 0 - db c bp =1uf, f=100hz - 47 - db psr r power suppl y reject i on rat i o c bp =10uf, f=100hz - 67 - db - - 6 9 - 6 4 db thd+n tot a l harm oni c di st ort i on pl us noi se se m ode, r l =32 ? , 15m w 0 . 0 3 6 0 . 0 6 3 % s/ n si gnal - t o -noi se rat i o se m ode, a-wei ght i ng 87 92 - db btl mode, r l = 4 ? thd+n = 1% - 0 . 5 1 - w btl mode; r l = 8 ? thd+n = 1% - 0 . 3 5 - w se m ode; r l = 8 ? thd+n = 1% - 8 5 m - w p o o u t put p o w e r se m ode; r l = 32 ? thd+n = 1% - 2 5 m - w
mo sa MS6853 m ono 1.9w / stereo 300mw power amplifier r e v 1 5 www.m o sanalog.com typical performance characteristics ta = 25c , b w <30khz, unl ess ot herwi s e speci fi ed. thd+n (%) fre q ue ncy (hz ) thd+n (%) fre q ue ncy (hz ) thd+n (%) fre q ue ncy (hz ) thd+n vs. frequency thd+n vs. frequency thd+n vs. frequency v dd =3.3v bt l m ode r l =4 ? v dd =5v bt l m ode r l =4 ? v dd =2.7v bt l m ode r l =4 ? po=1.9w po=0.8w po=0.5w thd+n (%) fre q ue ncy (hz ) thd+n (%) fre q ue ncy (hz ) thd+n (%) fre q ue ncy (hz ) v dd =3.3v bt l m ode r l =8 ? v dd =5v bt l m ode r l =8 ? v dd =2.7v bt l m ode r l =8 ? po=0.5w po=1.2w po=0.34w po=0.3w po=1w po=0.25w thd+n vs. frequency thd+n vs. frequency thd+n vs. frequency thd+n (%) fre q ue ncy (hz ) thd+n (%) fre q ue ncy (hz ) thd+n (%) fre q ue ncy (hz ) v dd =3.3v se m ode r l =32 ? v dd =5v se m ode r l =32 ? v dd =2.7v se m ode r l =32 ? po=25m w po=90m w po=25m w po=60m w po=15m w po=35m w thd+n vs. frequency thd+n vs. frequency thd+n vs. frequency
mo sa MS6853 m ono 1.9w / stereo 300mw power amplifier r e v 1 6 www.m o sanalog.com thd+n (%) out p ut p o w e r (w ) thd+n (%) out p ut p o w e r (w ) thd+n (%) out p ut p o w e r (w ) thd+n vs. output pow e r thd+n vs. output pow e r thd+n vs. output pow e r f = 20k hz f = 20k hz f = 20k hz f= 1 k h z f= 1 k h z f= 1 k h z v dd =2.7v bt l m ode r l =4 ? v dd =5v bt l m ode r l =4 ? v dd =3.3v bt l m ode r l =4 ? f = 20hz f = 20hz f = 20hz thd+n (%) out p ut p o w e r (w ) thd+n (%) out p ut p o w e r (w ) thd+n (%) out p ut p o w e r (w ) thd+n vs. output pow e r thd+n vs. output pow e r thd+n vs. output pow e r f = 20k hz f = 20k hz f = 20k hz f= 1 k h z f= 1 k h z f= 1 k h z f = 20hz f = 20hz f = 20hz v dd =5v bt l m ode r l =8 ? v dd =3.3v bt l m ode r l =8 ? v dd =2.7v bt l m ode r l =8 ? thd+n (%) out p ut p o w e r (w ) thd+n (%) out p ut p o w e r (w ) thd+n (%) out p ut p o w e r (w ) thd+n vs. output pow e r thd+n vs. output pow e r thd+n vs. output pow e r f = 20k hz f = 20k hz f = 20k hz f= 1 k h z f= 1 k h z f= 1 k h z f = 20hz f = 20hz f = 20hz v dd =5v se m ode r l =32 ? v dd =3.3v se m ode r l =32 ? v dd =2.7v se m ode r l =32 ?
mo sa MS6853 m ono 1.9w / stereo 300mw power amplifier r e v 1 7 www.m o sanalog.com psr r ( d b) fre q ue ncy (hz ) psr r ( d b) fre q ue ncy (hz ) psr r ( d b) fre q ue ncy (hz ) c bp =10uf c bp =10uf c bp =10uf c bp =1uf c bp =1uf c bp =1uf v dd =5v se m ode r l =32 ? v dd =5v se m ode r l =32 ? v dd =5v se m ode r l =32 ? psrr vs. frequency psrr vs. frequency psrr vs. frequency quie s c e n t curre nt (ma ) su pply volt age ( v ) c h a n n e l separ ation ( d b) fre q ue ncy (hz ) v in =0v no load v dd =5v po=90m w v dd =3.3v po=40m w v dd =2.7v po=25m w bt l m ode se m ode se m ode r l =32 ? quiescent current vs. supply voltage channel separation vs. frequency
mo sa MS6853 m ono 1.9w / stereo 300mw power amplifier r e v 1 8 www.m o sanalog.com application information b a si c appl i c ati o n exampl e l-in m s 6853 shut dow n vdd r-in 10 9 btl out + hp-i n gn d bypas s r-o u t 20k 8 7 6 5 4 3 2 1 l-o u t/btl ou t- 1u f 1 u f 20k v dd 20k r l 8 ? 100uf 1k 1uf 100uf 1k 1uf headp hone jack 20k 100 k 100 k v dd v dd v in r v in l r f r f r in r in dc gain = - r f / r in = -1 fi g.1 a audi o ampl i f i er appl i c ati o n ci rcui t . se mo de a nd btl mo de o p era tio n as shown i n bl ock di agram and fi g.1, i n t h e se m ode , t h e m s 6853 operat e s as a hi gh current out put dual op am p. am pl i f i e r a1 and a3 are i ndependent am pl i f i e rs wi t h an ext e rnal l y confi gured gai n of a v = - r f /r in. am p lifier a2 is shut down t o a hi gh out put i m pedance st at e. in b tl m ode, a3 i s shut down t o a hi gh i m pedance st at e. the audi o si gnal from t h e r -in pi n i s di rect ed t o t h e i nvert i ng i nput of a1. as a resul t , t h e l-in and r -in audi o si gnal s , v inl and v inr , are sum m e d t oget h er at t h e i nput of a1. a2 i s t h en act i v at ed wi t h a cl osed-l oop gai n of a v = -1 fi xed by t w o i n t e rnal resi st ors. the out put s of a1 and a2 are t h en used t o dri v e t h e m ono bri dged-t i e d l o ad. hp-in operation the ability of the MS6853 is easily switched between m ono b tl and stereo se m odes. the m ode is switched by headphone cont rol pi n, hp-in. a l ogi c-hi gh act i v at es t h e se m ode when a set of headphone pl ugged i n t o t h e sy st em , on t h e ot her hand, a l ogi cal -l ow t o hp-in act i v at es t h e b tl m ode when no headphones. thermal pad considerations the t h erm a l pa d m u st be c o n n ect ed t o g r o u n d . t h e pac k a g e wi t h t h erm a l pa d of t h e m s 6 8 5 3 re qui res speci al at t e nt i on o n th erm a l d e sig n . th e th ermal p a d o n the bo tto m o f t h e ms 6 853 shou ld b e so ld er ed do wn to a co pp er p a d on th e cir c u it bo ard . h eat can b e co ndu cted aw ay f r o m th e th ermal p a d thr oug h th e co pp er p l an e t o am b i e n t. if th e copper plane is not on the top s u rfac e of the circ u it bo ard , 9 v i as o f 13 m il o r smaller in d i ameter shou ld b e u s ed to t h erm a lly cou p l e t h e t h er m a l pad t o t h e bot t o m pl ane. fo r g o o d t h er m a l cond uct i o n, t h e vi as m u st be pl at ed t h ro u gh a n d s o l d e r filled .
mo sa MS6853 m ono 1.9w / stereo 300mw power amplifier r e v 1 9 www.m o sanalog.com external dimensions msop10 (thermal pad) a a1 b c l d h e a2 th er m a l pa d e w1 w2 tssop14 d e1 e c l a a2 a1 b e dimension in mm dimension in inches sy mbol min n om max m i n n o m max a 0 . 8 1 0.92 1.12 0 . 0 3 2 0 . 0 3 6 0.044 a 1 0 . 0 5 - 0.15 0 . 0 0 2 - 0 . 0 0 6 a 2 0 . 7 6 0.86 0. 97 0 . 0 3 0 0 . 0 3 4 0.038 b 0 . 1 5 0.20 0.30 0 . 0 0 6 0 . 0 0 8 0.012 c 0 . 1 3 0.15 0.23 0 . 0 0 5 0 . 0 0 6 0.009 d 2 . 9 0 3.00 3.10 0 . 1 1 4 0 . 1 1 8 0.122 h 4 . 7 0 4.90 5.10 0 . 1 8 5 0 . 1 9 3 0.201 e 2 . 9 0 3.00 3.10 0 . 1 1 4 0 . 1 1 8 0.122 e 0.50 basic 0.02 basic l 0 . 4 0 0.53 0.66 0 . 0 1 6 0 . 0 2 1 0.026 0 o - 6 o 0 o - 6 o w 1 1 . 2 7 - 1.52 0 . 0 5 0 - 0.060 w 2 1 . 0 2 - 1.27 0 . 0 4 0 - 0.050 dimension in mm dimension in inches sy mbol min n om max m i n n o m max a - - 1.20 - - 0.047 a 1 0 . 0 5 - 0.15 0 . 0 0 2 - 0 . 0 0 6 a 2 0 . 8 0 1.00 1. 05 0 . 0 3 1 0 . 0 3 9 0.041 b 0 . 1 9 - 0.30 0 . 0 0 7 - 0.012 c 0 . 0 9 - 0.20 0 . 0 0 3 5 - 0.008 d 4 . 9 0 5.00 5.10 0 . 1 9 3 0 . 1 9 7 0.201 e - 6.40 - - 0 . 0 2 6 - e 1 4 . 3 4 . 4 4. 5 0 . 1 7 0 0 . 1 7 3 0.177 e 0.650 basic 0.026 basic l 0 . 4 5 0.60 0.75 0 . 0 1 7 7 0 . 0 2 4 0.0295 0 o - 8 o 0 o - 8 o
mo sa MS6853 m ono 1.9w / stereo 300mw power amplifier r e v 1 1 0 www.m o sanalog.com tape and reel (un it : m m ) msop10 3.0 3.6 12.0 6.9 8.0 5.5 1.75 5.4 2.0 4.0 1.5+0.1/-0.0 dia 0.5 radius typical 1.5 min 0.30 0.3r max 1.7 2.0 0.05 0.05 0.05 0.3
mo sa MS6853 m ono 1.9w / stereo 300mw power amplifier r e v 1 1 1 www.m o sanalog.com demo board msop10 (thermal pad) tssop14
mo sa MS6853 m ono 1.9w / stereo 300mw power amplifier r e v 1 1 2 www.m o sanalog.com function description label 1: suppl y input supply voltage range is 2.7v to 5.5v, the right of jum p is positive, the left of jum p is negative. label 2: si gnal input c onnect ed t o audi o si gnal s . label 3: speaker out put c onnect ed t o speaker wi t h 8ohm or 4 ohm label 4: headphone jack used 3.5m m di am et er of headphone wi t h 32ohm label 5: shut down c ont rol sy st em i s act i v e m ode when jum p i s cl ose, sy st em ent e rs shut down m ode when jum p i s open. se mo de a nd btl mo de o p era tio n the headphone cont rol s operat i onal m ode. sy st em en t e rs se m ode when headphone jack i s em pt y . w h en a set of headphone pl ugged i n t o t h e jack, t h e sy st em swi t c hed t o b tl m ode.

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