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c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 4 - a u g . , 2 0 1 3 w w w . a n p e c . c o m . t w 1 a n p e c r e s e r v e s t h e r i g h t t o m a k e c h a n g e s t o i m p r o v e r e l i a b i l i t y o r m a n u f a c t u r a b i l i t y w i t h o u t n o t i c e , a n d a d v i s e c u s t o m e r s t o o b t a i n t h e l a t e s t v e r s i o n o f r e l e v a n t i n f o r m a t i o n t o v e r i f y b e f o r e p l a c i n g o r d e r s . 2 . 8 w m o n o c l a s s d a u d i o p o w e r a m p l i f i e r w i t h a g c a p a 2 0 1 1 / 2 0 1 1 a f e a t u r e s g e n e r a l d e s c r i p t i o n a p p l i c a t i o n s m o b i l p h o n e s h a n d s e t p d a s p o r t a b l e m u l t i m e d i a d e v i c e o p e r a t i n g v o l t a g e : 2 . 4 v - 5 . 5 v h i g h e f f i c i e n c y u p t o 9 0 % s u p p l y c u r r e n t ?v i d d = 3 m a a t v d d = 5 v ?v i d d = 2 . 5 m a a t v d d = 3 . 6 v l o w s h u t d o w n c u r r e n t ?v i d d = 1 m a a t v d d = 5 v o u t p u t p o w e r a t 1 % t h d + n ?v 1 . 3 w , a t v d d = 5 v , r l = 8 w ?v 0 . 6 w , a t v d d = 3 . 6 v , r l = 8 w ?v 2 . 0 w , a t v d d = 5 v , r l = 4 w ?v 1 . 0 w , a t v d d = 3 . 6 v , r l = 4 w a t 1 0 % t h d + n ?v 1 . 6 w , a t v d d = 5 v , r l = 8 w ?v 0 . 8 w , a t v d d = 3 . 6 v , r l = 8 w ?v 2 . 8 w , a t v d d = 5 v , r l = 4 w ( w l c s p - 9 ) ?v 2 . 4 w , a t v d d = 5 v , r l = 4 w ?v 1 . 2 w , a t v d d = 3 . 6 v , r l = 4 w a p a 2 0 1 1 d y n a m i c r a n g e c o n t r o l ( d r c ) p r o v i d e m a x i m u m 1 5 d b c o n t r o l ( 2 : 1 c o m p r e s s i o n r a t i o ) a p a 2 0 1 1 a n o n - c l i p f u n c t i o n c a n p r o v i d e m a x i - m u m 1 5 d b c o n t r o l ( g a i n d e c r e a s i n g ) l e s s e x t e r n a l c o m p o n e n t s r e q u i r e d f a s t s t a r t - u p t i m e ( 4 m s ) h i g h p s r r : 7 0 d b a t 2 1 7 h z t h e r m a l a n d o v e r - c u r r e n t p r o t e c t i o n s s p a c e s a v i n g p a c k a g e s w l c s p 1 . 5 x 1 . 5 - 9 b u m p , t d f n 3 x 3 - 8 l e a d f r e e a n d g r e e n d e v i c e s a v a i l a b l e ( r o h s c o m p l i a n t ) s i m p l i f i e d a p p l i c a t i o n c i r c u i t the apa2011/2011a is a mono, filter-free class-d audio amplifier available in wlcsp1.5x1.5-9 or tdfn3x3-8 package. the default gains without the external input resistor is 27db. besides, the gain can be low down by external input resistance. apa2011 provides an dynamic-range- control (drc) function, and this function can low down the dynamic range for large input signal. apa2011 can provide maximun 15db gain control. APA2011A can pro- vide maximum 15db gain decrease for non-clipping function , a n d t h i s f u n c t i o n c a n a v o i d o u t p u t s i g n a l c l i p p i n g . high psrr and differential architecture provide increased immunity to noise and rf rectification. in addition to these features, a fast start-up time and small package size make the apa2011/2011a an ideal choice for portable devices. the apa2011/2011a is capable of driving 1.6w at 5v or 0.8w at 3.6v into 8 w . it is also capable of driving 4 w . the apa2011/2011a is designed with a class-d architecture and operating with highly efficiency compared with class- ab amplifier. it?s suitable for power sensitive application, such as battery-powered devices. the filter-free architec- ture eliminates the output filter, reduces the external com- ponent count, board area, and system costs, and simpli- fies the design. moreover, the apa2011/2011a provides thermal and short circuit protection. apa2011/2011a audio input signals audio speaker inp outp inn outn free datasheet http:///
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 4 - a u g . , 2 0 1 3 w w w . a n p e c . c o m . t w 2 a p a 2 0 1 1 / 2 0 1 1 a a b s o l u t e m a x i m u m r a t i n g s ( n o t e 1 ) symbol parameter rating unit v pgnd_gnd pgnd to gnd - 0.3 to +0.3 v dd supply voltage (vdd to pgnd, vdd to gnd) - 0.3 to 6 v in input voltage (inn, inp to gnd) - 0.3 to v dd +0.3 v sd, v dr input voltage (sd, dr to gnd) - 0.3 to v dd +0.3 v t j maximum j unction temperature 150 t stg storage temperature range - 65 to +150 o c o r d e r i n g a n d m a r k i n g i n f o r m a t i o n n o t e : a n p e c l e a d - f r e e p r o d u c t s c o n t a i n m o l d i n g c o m p o u n d s / d i e a t t a c h m a t e r i a l s a n d 1 0 0 % m a t t e t i n p l a t e t e r m i n a t i o n f i n i s h ; w h i c h a r e f u l l y c o m p l i a n t w i t h r o h s . a n p e c l e a d - f r e e p r o d u c t s m e e t o r e x c e e d t h e l e a d - f r e e r e q u i r e m e n t s o f i p c / j e d e c j - s t d - 0 2 0 d f o r m s l c l a s s i f i c a t i o n a t l e a d - f r e e p e a k r e f l o w t e m p e r a t u r e . a n p e c d e f i n e s ? g r e e n ? t o m e a n l e a d - f r e e ( r o h s c o m p l i a n t ) a n d h a l o g e n f r e e ( b r o r c l d o e s n o t e x c e e d 9 0 0 p p m b y w e i g h t i n h o m o g e n e o u s m a t e r i a l a n d t o t a l o f b r a n d c l d o e s n o t e x c e e d 1 5 0 0 p p m b y w e i g h t ) . p i n c o n f i g u r a t i o n sd 1 dr 2 inp 3 inn 4 tdfn3x3-8 top view 7 gnd 5 o ut p 6 vdd 8 o ut n apa2011/2011a handling code temperature range package code package code ha : wlcsp1.5x1.5-9 qb : tdfn3x3-8 operating ambient temperature range i : - 40 to 85 o c handling code tr : tape & reel assembly material g : halogen and lead free device x - date code assembly material a11 x xxxxx - date code apa 2011 xxxxx x - date code a11a x xxxxx - date code apa 2011a xxxxx apa2011 ha : APA2011A ha : apa2011 qb : APA2011A qb : wlcsp1.5x1.5-9 top view a11 x marking outn (a3) pgnd (b3) outp (c3) gnd (a2) vdd (b2) sd (c2) inp (a1) dr (b1) inn (c1) a11a x marking date code pin a1 free datasheet http:///
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 4 - a u g . , 2 0 1 3 w w w . a n p e c . c o m . t w 3 a p a 2 0 1 1 / 2 0 1 1 a symbol parameter rating unit t s dr maximum lead soldering temperature, 10 s econds 260 o c p d power dissipation internally limited w n o t e 1 : s t r e s s e s b e y o n d t h o s e l i s t e d u n d e r " a b s o l u t e m a x i m u m r a t i n g s " m a y c a u s e p e r m a n e n t d a m a g e t o t h e d e v i c e . t h e s e a r e s t r e s s r a t i n g s o n l y a n d f u n c t i o n a l o p e r a t i o n o f t h e d e v i c e a t t h e s e o r a n y o t h e r c o n d i t i o n s b e y o n d t h o s e i n d i c a t e d u n d e r " r e c o m m e n d e d o p e r a t i n g c o n d i t i o n s " i s n o t i m p l i e d . e x p o s u r e t o a b s o l u t e m a x i m u m r a t i n g c o n d i t i o n s f o r e x t e n d e d p e r i o d s m a y a f f e c t d e v i c e r e l i a b i l i t y . t h e r m a l c h a r a c t e r i s t i c s symbol parameter typical value unit q ja thermal resistance - junction to ambient ( note 2) wlcsp1.5x1.5 - 9 tdfn3x3 - 8 165 50 o c /w q j c thermal resistance - junction to case ( note 3) tdfn3x3 - 8 10 o c /w n o t e 2 : p l e a s e r e f e r t o ? l a y o u t r e c o m m e n d a t i o n ? , t h e t h e r m a l p a d o n t h e b o t t o m o f t h e i c s h o u l d s o l d e r e d d i r e c t l y t o t h e p c b ? s t h e r m a l p a d a r e a t h a t w i t h s e v e r a l t h e r m a l v i a s c o n n e c t t o t h e g r o u n d p l a n , a n d t h e p c b i s a 2 - l a y e r , 5 - i n c h s q u a r e a r e a w i t h 2 o z c o p p e r t h i c k n e s s . n o t e 3 : t h e c a s e t e m p e r a t u r e i s m e a s u r e d a t t h e c e n t e r o f t h e e x p o s e d p a d o n t h e u n d e r s i d e o f t h e t d f n 3 x 3 - 8 p a c k a g e . r e c o m m e n d e d o p e r a t i n g c o n d i t i o n s range symbol parameter min. max. unit v dd supply voltage 2 . 4 5.5 v ih high level threshold voltage sd 1 - v il low level threshold voltage sd - 0. 4 v ic common mode input voltage - v dd - 1 v t a ambient temperature range - 40 85 t j junction temp erature range - 40 12 5 o c r l speaker resistance 2.8 - w e l e c t r i c a l c h a r a c t e r i s t i c s apa2011/2011a symbol parameter test condition s min. typ. max. unit i dd supply current - 3 6 ma i sd shutdown current sd = 0v - 1 5 i i input current sd - 0. 1 1 m a f osc oscillator frequency 400 500 600 khz t wake - up recovery time from shutdown - 4 8 ms r i input resistor inn, inp 23.75 25 26.25 r dr dr pin pull - high resistor 9.5 10 10.5 k w r ds(on) static drain - source on - state resistance (pmosfet+nmosfet) v dd = 5v , i l =0.8a wlcsp1.5x1.5 - 9 - 780 - m w v d d = 5 v , g n d = 0 v , a v = 1 5 d b , t a = 2 5 o c ( u n l e s s o t h e r w i s e n o t e d ) a b s o l u t e m a x i m u m r a t i n g s ( c o n t . ) ( n o t e 1 ) free datasheet http:///
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 4 - a u g . , 2 0 1 3 w w w . a n p e c . c o m . t w 4 a p a 2 0 1 1 / 2 0 1 1 a e l e c t r i c a l c h a r a c t e r i s t i c s ( c o n t . ) apa2011/2011a symbol parameter test condition s min. typ. max. unit v dd =3.6 v , i l =0.6a wlcsp1.5x1.5 - 9 - 900 - r ds(on) static drain - source on - state resistance (pmosfet+nmosfet) v dd =2.4 v , i l =0.4a wlcsp1.5x1.5 - 9 - 1000 - m w p o =1. 2 w, r l =8 w +33 m h wlcsp1.5x1.5 - 9 - 90 - h efficiency p o = 2 w, r l = 4 w +33 m h wlcsp1.5x1.5 - 9 - 82 - % v dd = 5v r l = 3 w - 2.45 - r l = 4 w , wlcsp1.5x1.5 - 9 - 2.2 - r l = 4 w - 2.0 - thd +n =1% , f in =1 k hz r l = 8 w 1 1.3 - r l = 3 w - 3.0 - r l = 4 w , wlcsp1.5x1.5 - 9 - 2.8 - r l = 4 w - 2.4 - p o output power thd +n =10% , f in =1 k hz r l = 8 w - 1.6 - w r l = 4 w p o = 1.4 w - 0.05 0.1 r l = 8 w p o = 0.9w - 0.04 0.1 thd+n total harmonic distortion p lus noise f in =1 k hz r l = 8 w p o = 1.5w, v dr =v dd - 3 5 % v os output offset voltage r l = 8 w - - 2 0 mv v n noise output voltage w ith a - weight ing filter , r l = 8 w - 100 200 m vrms s/n signal to noise ratio w ith a - weight ing filter , p o = 0.9 w, r l = 8 w 82 89 - psrr power supply rejection ratio r l =8 w , f in = 217 hz ,v rr =0.5v pp - - 70 - 60 cmrr common mode rejec tion ratio f in =1khz, r l =8 w , v in =0.1v pp - - 60 - 50 att shutdown shutdown attenuation f in =1 k hz , r l = 8 w , v in = 1v pp - - 100 - 90 db v dd = 3.6 v r l = 4 w - 1.0 - thd +n =1%, f in =1 k hz r l = 8 w - 0.6 - r l = 4 w - 1.2 - p o output power thd +n =10%, f in =1 k hz r l = 8 w - 0 .8 - w r l = 4 w p o = 0.7 w - 0.07 0.15 thd+n total harmonic distortion p lus noise f in =1 k hz r l = 8 w p o = 0.4 w - 0.05 0.1 % v os output offset voltage r l = 8 w - - 20 mv v n noise output voltage w ith a - weight ing filter , r l = 8 w - 100 200 m vrms v d d = 5 v , g n d = 0 v , a v = 1 5 d b , t a = 2 5 o c ( u n l e s s o t h e r w i s e n o t e d ) free datasheet http:///
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 4 - a u g . , 2 0 1 3 w w w . a n p e c . c o m . t w 5 a p a 2 0 1 1 / 2 0 1 1 a e l e c t r i c a l c h a r a c t e r i s t i c s ( c o n t . ) v d d = 5 v , g n d = 0 v , a v = 1 5 d b , t a = 2 5 o c ( u n l e s s o t h e r w i s e n o t e d ) apa2011/2011a symbol parameter test condition s min. typ. max. unit v dd = 3.6 v (cont.) s/n signal to noise ratio w ith a - weight ing filter , p o = 0.4 w, r l = 8 w 79 85 - psrr power supply rejection ratio r l =8 w , f in = 217 hz ,v rr =0.2v pp - - 70 - 60 db cmrr co mmon mode rejection ratio f in =1khz, r l =8 w , v in =0.1v pp - - 60 - 50 att shutdown shutdown attenuation f in =1 k hz , r l = 8 w, v in = 1v pp - - 100 - 90 v dd = 2.4 v r l = 4 w - 0 .45 - thd +n =1%, f in =1 k hz r l = 8 w - 0.3 - r l = 4 w - 0. 55 - p o output power thd +n =10%, f in =1 k hz r l = 8 w - 0.35 - w r l = 4 w p o = 0.32 w - 0.2 0.5 thd+n total harmonic distortion p lus noise f in =1 k hz r l = 8 w p o = 0.2 w - 0.1 0.3 % v os output offset voltage r l = 8 w - - 20 mv v n noise output voltage w ith a - weight ing filter , r l = 8 w - 110 220 m vr ms s/n signal to noise ratio w ith a - weight ing filter , p o = 0.2 w, r l = 8 w 75 81 - psrr power supply rejection ratio r l =8 w , f in =217hz ,v rr =0.1v pp - - 65 - 60 cmrr common mode rejection ratio f in =1khz, r l =8 w , v in =0.1v pp - - 60 - 50 att shutdown shutdown atte nuation f in =1 k hz , r l = 8 w, v in = 1v pp - - 100 - 90 db free datasheet http:///
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 4 - a u g . , 2 0 1 3 w w w . a n p e c . c o m . t w 6 a p a 2 0 1 1 / 2 0 1 1 a t y p i c a l o p e r a t i n g c h a r a c t e r i s t i c s efficiency vs. output power (8 w ) e f f i c i e n c y ( % ) output power (w) r l =8 w +33 m h f in =1khz r in =75k w a v =15db aux-0025 aes-17(20khz) v dd =2.4v v dd =3.6v v dd =5v 0 10 20 30 40 50 60 70 80 90 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 efficiency vs. output power (4 w ) e f f i c i e n c y ( % ) output power (w) v dd =2.4v v dd =3.6v v dd =5v r l =4 w +33 m h f in =1khz r in =75k w a v =15db aux-0025 aes-17(20khz) 0 10 20 30 40 50 60 70 80 90 0 0.5 1.0 1.5 2.0 2.5 3.0 output power vs. load resistance o u t p u t p o w e r ( w ) load resistance ( w ) thd+n =10% f in =1khz r in =75k w a v =15db aux-0025 aes-17(20khz) v dd =2.4v v dd =5v wlcsp1.5x1.5-9 tdfn3x3-8 0 0.5 1.0 1.5 2.0 2.5 3.0 4 8 12 16 20 24 28 32 v dd =3.6v output power vs. load resistance load resistance ( w ) o u t p u t p o w e r ( w ) thd+n =1% f in =1khz r in =75k w a v =15db aux-0025 aes-17(20khz) v dd =5v v dd =2.4v v dd =3.6v wlcsp1.5x1.5-9 tdfn3x3-8 0 0.5 1.0 1.5 2.0 2.5 4 8 12 16 20 24 28 32 v dd =2.4v thd+n vs. output power t h d + n ( % ) output power (w ) f in =1khz r in =75k w r l =8 w a v =15db aux-0025 aes-17(20khz) tdfn3x3-8 v dd =3.6v v dd =5v v dd =5.5v v dd =4.2v 0 2.5 1 2 0.01 10 0.1 1 thd+n vs. output power t h d + n ( % ) output power (w ) f in =1khz r in =75k w r l =4 w a v =15db aux-0025 aes-17(20khz) tdfn3x3-8 v dd =2.4v v dd =3.6v v dd =5v v dd =5.5v v dd =4.2v 0.01 10 0.1 1 0 4 1 2 3 free datasheet http:///
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 4 - a u g . , 2 0 1 3 w w w . a n p e c . c o m . t w 7 a p a 2 0 1 1 / 2 0 1 1 a t y p i c a l o p e r a t i n g c h a r a c t e r i s t i c s ( c o n t . ) v dd =2.4v output power (w ) f in =1khz r in =75k w r l =8 w a v =15db aux-0025 aes-17(20khz) wlcsp1.5x1.5-9 v dd =3.6v v dd =5v v dd =5.5v v dd =4.2v thd+n vs. output power t h d + n ( % ) 0 2.8 1 2 0.01 10 0.1 1 r thd+n vs. frequency t h d + n ( % ) v dd =2.4v c i =0.1 m f r in =75k w r l =8 w a v =15db aux-0025 aes-17(20khz) p o =0.2w p o =0.1w frequency (hz ) 20 20k 100 1k 10k 0.01 10 0.1 1 thd+n vs. frequency t h d + n ( % ) v dd =3.6v c i =0.1 m f r in =75k w r l =8 w a v =15db aux-0025 aes-17(20khz) p o =0.5w p o =0.3w p o =0.1w frequency (hz ) 20 20k 100 1k 10k 0.005 10 0.01 0.1 1 f in =1khz r in =75k w r l =4 w a v =15db aux-0025 aes-17(20khz) wlcsp1.5x1.5-9 v dd =2.4v v dd =3.6v v dd =5v v dd =5.5v v dd =4.2v thd+n vs. output power output power (w ) t h d + n ( % ) 0 4.5 1 2 3 4 0.01 10 0.1 1 p o =1w thd+n vs. frequency t h d + n ( % ) v dd =5v c i =0.1 m f r in =75k w r l =8 w a v =15db aux-0025 aes-17(20khz) p o =0.5w p o =0.3w frequency (hz ) 20 20k 100 1k 10k 0.005 10 0.01 0.1 1 10 0 . 01 0 . 1 1 0 5 1 3 4 2 output power ( w ) t h d + n ( % ) thd + n vs . output power f in = 1 khz r in = 75 k w r l = 3 w a v = 15 db aux - 0025 aes - 17 ( 20 khz ) wlcsp 1 . 5 x 1 . 5 - 9 v dd = 5 v v dd = 4 . 2 v v dd = 3 . 6 v v dd = 2 . 4 v free datasheet http:///
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 4 - a u g . , 2 0 1 3 w w w . a n p e c . c o m . t w 8 a p a 2 0 1 1 / 2 0 1 1 a t y p i c a l o p e r a t i n g c h a r a c t e r i s t i c s ( c o n t . ) psrr vs. frequency p o w e r s u p p l y r e j e c t i o n r a t i o ( d b ) v dd =5v v rr =0.5vpp c i =0.1 m f r in =75k w r l =8 w a v =15db inputs short aux-0025 aes-17(20khz) frequency (hz ) -80 +0 -70 -60 -50 -40 -30 -20 -10 20 20k 100 1k 10k r r thd+n vs. frequency t h d + n ( % ) v dd =3.6v c i =0.1 m f r in =75k w r l =4 w a v =15db aux-0025 aes-17(20khz) p o =0.8w p o =0.4w p o =0.2w frequency (hz ) 20 20k 100 1k 10k 0.005 10 0.01 0.1 1 r thd+n vs. frequency t h d + n ( % ) v dd =5v c i =0.1 m f r in =75k w r l =4 w a v =15db aux-0025 aes-17(20khz) p o =1.7w p o =0.5w p o =0.9w frequency (hz ) 20 20k 100 1k 10k 0.005 10 0.01 0.1 1 frequency response g a i n ( d b ) v dd =5v c i =0.1 m f r in =75k w r l =8 w p o =0.13w a v =15db aux-0025 aes-17(20khz) p h a s e ( d e g ) amplitude phase frequency (hz ) -160 +180 -120 -80 -40 +0 +40 +80 +120 +160 20 100k 100 1k 10k -0 +18 +2 +4 +6 +8 +10 +12 +14 +16 cmrr vs. frequency c o m m o n m o d e r e j e c t i o n r a t i o ( d b ) v dd =5v c i =0.1 m f r in =75k w r l =8 w v o =1vrms a v =15db aux-0025 aes-17(20khz) frequency (hz ) 20 20k 100 1k 10k -80 +0 -70 -60 -50 -40 -30 -20 -10 thd+n vs. frequency t h d + n ( % ) v dd =2.4v c i =0.1 m f r in =75k w r l =4 w a v =15db aux-0025 aes-17(20khz) p o =0.3w p o =0.2w frequency (hz ) 20 20k 100 1k 10k 0.005 10 0.01 0.1 1 free datasheet http:///
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 4 - a u g . , 2 0 1 3 w w w . a n p e c . c o m . t w 9 a p a 2 0 1 1 / 2 0 1 1 a t y p i c a l o p e r a t i n g c h a r a c t e r i s t i c s ( c o n t . ) supply current vs. output power s u p p l y c u r r e n t ( a ) output power (w ) v dd =5v c i =1 m f r in =75k w r l =8 w a v =15db aux-0025 aes-17(20khz) v dd =2.4v v dd =3.6v v dd =5v 0 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0 0.3 0.6 0.9 1.2 1.5 1.8 supply current vs. output power s u p p l y c u r r e n t ( a ) output power (w ) v dd =5v c i =1 m f r in =75k w r l =4 w a v =15db aux-0025 aes-17(20khz) v dd =2.4v v dd =3.6v v dd =5v 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0 0.5 1.0 1.5 2.0 2.5 apa2011 dynamic range control function_tdfn input voltage (vrms ) g a i n ( d b ) o u t p u t p o w e r ( w ) v dd =5v v dr =4.23v c i =0.1 m f r in =75k w r l =4 w a v =15db aux-0025 aes-17(20khz) tdfn3x3-8 0 1.6 1 2 0.1 1 2.5 -0 +16 +1 +2 +3 +4 +5 +6 +7 +8 +9 +10 +11 +12 +13 +14 +15 apa2011 dynamic range control function_tdfn g a i n ( d b ) input voltage (vrms ) v dd =5v v dr =4.5v c i =0.1 m f r in =75k w r l =4 w a v =15db o u t p u t p o w e r ( w ) aux-0025 aes-17(20khz) tdfn3x3-8 -0 +16 +1 +2 +3 +4 +5 +6 +7 +8 +9 +10 +11 +12 +13 +14 +15 3 0.1 1 2 0 2.4 1 2 v dd =5v v dr =4.5v c i =0.1 m f r in =75k w r l =4 w a v =15db o u t p u t p o w e r ( w ) g a i n ( d b ) input voltage (vrms ) apa2011 dynamic range control function_wlcsp aux-0025 aes-17(20khz) wlcsp1.5x1.5-9 0 2.5 1 2 -0 +16 +1 +2 +3 +4 +5 +6 +7 +8 +9 +10 +11 +12 +13 +14 +15 3 0.1 1 2 noise vs. frequency o u t p u t n o i s e v o l t a g e ( m v ) frequency (hz ) v dd =5v c i =0.1 m f r in =75k w r l =8 w a v =15db aux-0025 aes-17(20khz) a-weighting 10 m 1m 100 m 20 20k 100 1k 10k free datasheet http:///
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 4 - a u g . , 2 0 1 3 w w w . a n p e c . c o m . t w 1 0 a p a 2 0 1 1 / 2 0 1 1 a t y p i c a l o p e r a t i n g c h a r a c t e r i s t i c s ( c o n t . ) APA2011A non-clipping function_tdfn g a i n ( d b ) input voltage (vrms ) v dd =5v v dr =4.5v c i =0.1 m f r in =75k w r l =4 w a v =15db o u t p u t p o w e r ( w ) aux-0025 aes-17(20khz) tdfn-8 0 2.4 1 2 -0 +16 +1 +2 +3 +4 +5 +6 +7 +8 +9 +10 +11 +12 +13 +14 +15 3 0.1 1 2 0.1 1 input voltage (vrms ) g a i n ( d b ) o u t p u t p o w e r ( w ) v dd =5v v dr =4.23v c i =0.1 m f r in =75k w r l =4 w a v =15db aux-0025 aes-17(20khz) tdfn-8 APA2011A non-clipping function_tdfn 0 1.6 1 -0 +16 +1 +2 +3 +4 +5 +6 +7 +8 +9 +10 +11 +12 +13 +14 +15 apa2011 dynamic range control function_wlcsp v dd =5v v dr =4v c i =0.1 m f r in =75k w r l =4 w a v =15db g a i n ( d b ) o u t p u t p o w e r ( w ) input voltage (vrms ) aux-0025 aes-17(20khz) wlcsp1.5x1.5-9 0 1.6 1 -0 +16 +1 +2 +3 +4 +5 +6 +7 +8 +9 +10 +11 +12 +13 +14 +15 2 0.1 1 apa2011 dynamic range control function_tdfn v dd =5v v dr =4v c i =0.1 m f r in =75k w r l =4 w a v =15db input voltage (vrms ) o u t p u t p o w e r ( w ) g a i n ( d b ) aux-0025 aes-17(20khz) tdfn3x3-8 -0 +16 +1 +2 +3 +4 +5 +6 +7 +8 +9 +10 +11 +12 +13 +14 +15 2 0.1 1 0 1.2 1 3 0.1 1 2 v dd =5v v dr =4.5v c i =0.1 m f r in =75k w r l =4 w a v =15db o u t p u t p o w e r ( w ) g a i n ( d b ) input voltage (vrms ) aux-0025 aes-17(20khz) wlcsp-9 APA2011A non-clipping function_w l csp 0 2.4 1 2 -0 +16 +1 +2 +3 +4 +5 +6 +7 +8 +9 +10 +11 +12 +13 +14 +15 v dd =5v v dr =4.23v c i =0.1 m f r in =75k w r l =4 w a v =15db aux-0025 aes-17(20khz) wlcsp1.5x1.5-9 o u t p u t p o w e r ( w ) input voltage (vrms ) g a i n ( d b ) apa2011 dynamic range control function_wlcsp -0 +16 +1 +2 +3 +4 +5 +6 +7 +8 +9 +10 +11 +12 +13 +14 +15 2 0.1 1 0 1.6 1 free datasheet http:///
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 4 - a u g . , 2 0 1 3 w w w . a n p e c . c o m . t w 1 1 a p a 2 0 1 1 / 2 0 1 1 a t y p i c a l o p e r a t i n g c h a r a c t e r i s t i c s ( c o n t . ) 0 1.2 1 2 0.1 1 input voltage (vrms ) g a i n ( d b ) o u t p u t p o w e r ( w ) v dd =5v v dr =4v c i =0.1 m f r in =75k w r l =4 w a v =15db aux-0025 aes-17(20khz) tdfn-8 APA2011A non-clipping function_tdfn -0 +16 +1 +2 +3 +4 +5 +6 +7 +8 +9 +10 +11 +12 +13 +14 +15 supply current vs. supply voltage s u p p l y c u r r e n t ( m a ) supply voltage (v ) no load 0 1 2 3 4 5 5.5 0 1 2 3 4 5 shutdown current vs. supply voltage s h u t d o w n c u r r e n t ( m a ) supply voltage (v ) no load 0 0.2 0.4 0.6 0.8 1.0 1.2 0 1 2 3 4 5 5.5 vdr vs. output power (8 w ) 0 1 2 3.9 4.0 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 4.9 5.0 vdr (v) o u t p u t p o w e r ( w ) typ max min v dd =5v 0 1.2 1 2 0.01 1 v dd =5v v dr =4v c i =0.1 m f r in =75k w r l =4 w a v =15db aux-0025 aes-17(20khz) wlcsp-9 o u t p u t p o w e r ( w ) input voltage (vrms ) g a i n ( d b ) APA2011A non-clipping function_w l csp -0 +16 +1 +2 +3 +4 +5 +6 +7 +8 +9 +10 +11 +12 +13 +14 +15 0 1.6 1 2 0.1 1 v dd =5v v dr =4.23v c i =0.1 m f r in =75k w r l =4 w a v =15db aux-0025 aes-17(20khz) wlcsp-9 o u t p u t p o w e r ( w ) input voltage (vrms ) g a i n ( d b ) APA2011A non-clipping function_w l csp -0 +16 +1 +2 +3 +4 +5 +6 +7 +8 +9 +10 +11 +12 +13 +14 +15 free datasheet http:///
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 4 - a u g . , 2 0 1 3 w w w . a n p e c . c o m . t w 1 2 a p a 2 0 1 1 / 2 0 1 1 a t y p i c a l o p e r a t i n g c h a r a c t e r i s t i c s ( c o n t . ) vdr vs. output power (4 w ) 0 1 2 3 4 3.9 4.0 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 4.9 5.0 vdr(v) o u t p u t p o w e r ( w ) typ max min v dd =5v free datasheet http:///
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 4 - a u g . , 2 0 1 3 w w w . a n p e c . c o m . t w 1 3 a p a 2 0 1 1 / 2 0 1 1 a o p e r a t i n g w a v e f o r m s s h u t d o w n r e l e a s e s h u t d o w n ch1: v sd , 5v/div, dc ch2: v outp , 1v/div, dc time: 20 ms/div ch3: v outn , 1v/div, dc chm1: v out (ch2-ch3) , 100mv/div, dc ch1: v sd , 5v/div, dc ch2: v outp , 1v/div, dc time: 1ms/div ch3: v outn , 1v/div, dc chm1: v out (ch2-ch3) , 100mv/div, dc v dd v out v outp & v outn 1 m1 2&3 p o w e r o n p o w e r o f f 1 m1 2&3 v dd v out v outp & v outn ch1: v dd , 5v/div, dc ch2: v outp , 1v/div, dc time: 2 ms/div ch3: v outn , 1v/div, dc chm1: v out (ch2-ch3) , 100mv/div, dc ch1: v dd , 5v/div, dc ch2: v outp , 1v/div, dc time: 40 ms/div ch3: v outn , 1v/div, dc chm1: v out (ch2-ch3) , 100mv/div, dc 1 m1 2&3 v dd v outp & v outn v out 1 m1 2&3 v dd v out v outp & v outn free datasheet http:///
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 4 - a u g . , 2 0 1 3 w w w . a n p e c . c o m . t w 1 4 a p a 2 0 1 1 / 2 0 1 1 a p i n d e s c r i p t i o n pin no. wlcsp1.5x1.5 - 9 tdfn3x3 - 8 name i/o/p function a1 3 inp i positive i nput of power amplifier . a2 7 gnd p ground connection for circuitry. a3 8 outn o negative output of power amplifier. b1 2 dr i setting the maximum output pow er; disable the drc/non - clipping , when v dr <0.2v dd , and if the 0.2v dd c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 4 - a u g . , 2 0 1 3 w w w . a n p e c . c o m . t w 1 5 a p a 2 0 1 1 / 2 0 1 1 a s i n g l e - e n d e d i n p u t m o d e ( t d f n 3 x 3 - 8 ) a n d a v = 1 5 d b t y p i c a l a p p l i c a t i o n c i r c u i t differential input mode (tdfn3x3-8) n o t e : * t h e s e t t i n g v a l u e h a s 1 5 % v a r i a t i o n b y i c p r o c e s s a n d t h i s e q u a t i o n o n l y f o r w l c s p 1 . 5 x 1 . 5 - 9 p a c k a g e , t h e t d f n 3 x 3 - 8 p a c k a g e ? s o u t p u t p o w e r w i l l l e s s t h a n t h e c a l c u l a t i o n . n o t e : * t h e s e t t i n g v a l u e h a s 1 5 % v a r i a t i o n b y i c p r o c e s s a n d t h i s e q u a t i o n o n l y f o r w l c s p 1 . 5 x 1 . 5 - 9 p a c k a g e , t h e t d f n 3 x 3 - 8 p a c k a g e ? s o u t p u t p o w e r w i l l l e s s t h a n t h e c a l c u l a t i o n . 0.1 m f 0.1 m f shutdown control 4w 0.1 m f 10 m f c i1 c i 2 v dd apa2011/ 2011a sd dr inp inn gnd outp vdd outn differential signals *r 1 v dd 1 2 3 4 5 6 7 8 *r 1 : setting the maximum output power dd 1 1 dr v 10k r r v w + = r spk : speaker resistor c s2 c s1 spk 2 dd dr o r ) 0.5v 2(v p * - = 0.022 m f 0.022 m f shutdown control 4w 0.1 m f 10 m f c i1 c i2 v dd apa2011/ 2011a sd dr inp inn gnd outp vdd outn single-ended signals *r 1 v dd 1 2 3 4 5 6 7 8 *r 1 : setting the maximum output power dd 1 1 dr v 10k r r v w + = r spk : speaker resistor r i1 r i2 75k w 75k w c s2 c s1 15db 20log5.6 a 5.6(v/v), 5.6 k 25 ) r & (r 75k 100k a v i2 i1 v = = = w + w w = spk 2 dd dr o r ) 0.5v 2(v p * - = free datasheet http:///
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 4 - a u g . , 2 0 1 3 w w w . a n p e c . c o m . t w 1 6 a p a 2 0 1 1 / 2 0 1 1 a f u n c t i o n d e s c r i p t i o n fully differential amplifier the apa2011/2011a is a fully differential amplifier with differential inputs and outputs. the fully differential has some advantages versus traditional amplifier. first, don?t need the input coupling capacitors because the com- mon-mode feedback will compensate the input bias. the inputs can biased from 0.5v to v dd -0.5v, and the outputs still be biased at mid-supply of apa2011/2011a. if the in- puts are biased out of the input range, the coupling ca- pacitors are required. second, don?t need the mid-sup- ply capacitor (c b ) because any shift of the mid-supply of apa2011/2011a will have the same affect for both positive & negative channel, and will cancel at the differential outputs. third, the fully differential amplifier will cancel the gsm rf transmitter?s signal (217hz). class d operation v outp v out (v outp -v outn ) i out i out output = 0v output > 0v i out output < 0v v outn v outp v outn v outn v outp v out (v outp -v outn ) v out (v outp -v outn ) f i g u r e 1 . a p a 2 0 1 1 / 2 0 1 1 o u t p u t w a v e f o r m ( v o l t a g e & c u r r e n t ) t h e a p a 2 0 1 1 / 2 0 1 1 a m o d u l a t i o n s c h e m e i s s h o w n i n f i g - u r e 1 . t h e o u t p u t s v o u t p a n d v o u t n a r e i n p h a s e w i t h e a c h o t h e r w h e n n o i n p u t s i g n a l s . w h e n o u t p u t > 0 v , t h e d u t y c y c l e o f v o u t p i s g r e a t e r t h a n 5 0 % a n d v o u t n i s l e s s t h a n 5 0 % ; w h e n o u t p u t < 0 v , t h e d u t y c y c l e o f v o u t p i s l e s s t h a n 5 0 % a n d v o u t n i s g r e a t e r t h a n 5 0 % . t h i s m e t h o d r e d u c e s t h e s w i t c h i n g c u r r e n t a c r o s s t h e l o a d a n d r e d u c e s t h e i 2 r l o s s e s i n t h e l o a d t h a t i m p r o v e s t h e a m p l i f i e r ? s e f f i c i e n c y . t h i s m o d u l a t i o n s c h e m e h a s v e r y s h o r t p u l s e s a c r o s s t h e l o a d , t h i s m a k i n g t h e s m a l l r i p p l e c u r r e n t a n d v e r y l i t t l e l o s s o n t h e l o a d , a n d t h e l c f i l t e r c a n b e e l i m i n a t e d i n m o s t a p p l i c a t i o n s . a d d e d t h e l c f i l t e r c a n i n c r e a s e t h e e f f i c i e n c y b y f i l t e r t h e r i p p l e c u r r e n t . non-clipping function (APA2011A) f i g u r e 2 . a p a 2 0 1 1 a n o n - c l i p p i n g c o n t r o l f u n c t i o n v in a v =15db v o u t maximum output power a v =0db t h e a p a 2 0 1 1 a p r o v i d e s t h e 1 5 s t e p s n o n - c l i p p i n g c o n t r o l , a n d t h e r a n g e i s f r o m 1 5 d b t o 0 d b , 1 d b / s t e p . w h e n t h e o u t p u t r e a c h e s t h e m a x i m u m p o w e r s e t t i n g v a l u e , t h e i n t e r n a l p r o g r a m m a b l e g a i n a m p l i f i e r ( p g a ) w i l l d e c r e a s e t h e g a i n f o r p r e v e n t t h e o u t p u t w a v e f o r m c l i p p i n g . t h i s f e a t u r e p r e v e n t s s p e a k e r d a m a g e f r o m o c c u r r i n g c l i p p i n g . u s i n g t h e d r p i n t o s e t t h e non-clipping function and limit the o u t p u t p o w e r . d i s a b l e t h e a g c , w h e n v d r < 0 . 2 v d d , a n d i f t h e 0 . 2 v d d < v d r < 0 . 5 5 v d d , t h e v d r i s s e t t o 0 . 5 5 v d d b y i n t e r n a l , t h i s i s m a x i m u m p o w e r l i m i t ( m i n i m u m t h e o u t - p u t p o w e r ) . (1) dd 1 1 dr v k 10 r r v w + = spk 2 dd dr o r ) v 5 . 0 v ( 2 p * - = r s p k : s p e a k e r r e s i s t o r ( 2 ) free datasheet http:///
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 4 - a u g . , 2 0 1 3 w w w . a n p e c . c o m . t w 1 7 a p a 2 0 1 1 / 2 0 1 1 a f u n c t i o n d e s c r i p t i o n ( c o n t . ) f i g u r e 4 . a p a 2 0 1 1 o u t p u t s i g n a l v s . t i m e a . t h e o u t p u t l e v e l e x c e s s e s t h e a g c s t a r t p o i n t . b . a t o b i s t h e a t t a c k t i m e ( 3 2 m s ) , b u t t h e g a i n n e e d s t o c h a n g e a t o u t p u t s i g n a l z e r o c r o s s i n g . c . t h e o u t p u t l e v e l i s u n d e r t h e l i m i t l e v e l . d . d t o e i s r e l e a s e t i m e ( 5 1 2 m s ) , b u t t h e g a i n n e e d s t o c h a n g e a t o u t p u t s i g n a l z e r o c r o s s i n g . . w h e n t h e a p a 2 0 1 1 / 2 0 1 1 a s e n s e s t h e i n p u t s i g n a l e x - c e s s e s t h e s t a r t p o i n t o f drc/non-clipping , i t n e e d s 3 2 m s t o d e c r e a s e t h e g a i n , t h i s c a l l s ? a t t a c k t i m e ? . a n d i f t h e i n p u t s i g n a l i s s m a l l t h a n t h e t h r e s h o l d a b o u t 5 1 2 m s , t h e g a i n w i l l b e r e c o v e r y , t h i s t i m e c a l l s ? r e l e a s e t i m e ? . t h e a p a 2 0 1 1 ? s c o m p r e s s r a t i o i s 2 : 1 , i t m e a n s w h e n t h e i n p u t s i g n a l h a s t h e 2 d b c h a n g e , t h e o u t p u t s i g n a l w i l l c h a n g e 1 d b . b e c a u s e m o s t s m a l l f o r m s p e a k e r s h a v e o n l y s m a l l d y n a m i c r a n g e , t h e c o m p r e s s a l l o w s i n p u t s i g n a l w i t h l a r g e d y n a m i c r a n g e t o f i t i n t o a s m a l l s p e a k e r w i t h s m a l l d y n a m i c r a g e . and the APA2011A is just decrease the gain to avoid the output signal clipping, and the maximum control is 15db gain. dynamic range control function f i g u r e 3 . a p a 2 0 1 1 a u t o g a i n c o n t r o l f u n c t i o n t h e a p a 2 0 1 1 p r o v i d e s t h e 1 5 s t e p s d y n a m i c r a n g e c o n - t r o l ( d r c ) , a n d t h e r a n g e i s f r o m 1 5 d b t o 0 d b , 1 d b / s t e p . d r c p r o v i d e s c o n t i n u o u s a u t o m a t i c g a i n a d j u s t m e n t t o t h e a m p l i f i e r t h r o u g h a n i n t e r n a l p r o g r a m m a b l e g a i n a m p l i f i e r ( p g a ) . t h i s f e a t u r e e n h a n c e s t h e p e r c e i v e d a u d i o l o u d n e s s a n d p r e v e n t s s p e a k e r d a m a g e f r o m o c - c u r r i n g c l i p p i n g a t t h e s a m e t i m e . the equations 1 & 2 are the method that set the maxi- mum output power. if the r 1 =40k w , the v dr is 4v. therefore, the maximum output power is 1.125w (r l =4 w ), and the output voltage swing is limited at 3vpp (1.5vp) [the limited voltage can be calculated by 4v(v dr )- 2.5v(internal bypass voltage)=1.5v]. the agc start point is 0.536v pp (1.5vp/5.6(a v )=0.268v p ) at output, it means when the output power excesses 0.036w, the agc will start work and decrease the gain by 1db. if the input sig- nal increase un-limit, the gain will be decreased until the maximum gain attenuation (15db). maximum output power v o u t a v =0db a v =15db agc start point v in a v power limit attack time and release time time limit level limit level v i n time v o u t gain release time attack time a b c d limit level limit level non-clipping function (APA2011A) (cont.) note: *the setting value has 15% variation by ic process and this equation only for wlcsp1.5x1.5-9 package, the tdfn3x3-8 package?s output power will less than the calculation. shutdown operation i n o r d e r t o r e d u c e p o w e r c o n s u m p t i o n w h i l e n o t i n u s e , t h e a p a 2 0 1 1 / 2 0 1 1 a c o n t a i n s a s h u t d o w n f u n c t i o n t o e x - t e r n a l l y t u r n o f f t h e a m p l i f i e r b i a s c i r c u i t r y . t h i s s h u t d o w n f e a t u r e t u r n s t h e a m p l i f i e r o f f w h e n l o g i c l o w i s p l a c e d o n t h e s d p i n f o r a p a 2 0 1 1 / 2 0 1 1 a . t h e t r i g g e r p o i n t b e t w e e n free datasheet http:///
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 4 - a u g . , 2 0 1 3 w w w . a n p e c . c o m . t w 1 8 a p a 2 0 1 1 / 2 0 1 1 a shutdown operation (cont.) over-current protection t h e a p a 2 0 1 1 / 2 0 1 1 a m o n i t o r s t h e o u t p u t c u r r e n t . w h e n t h e c u r r e n t e x c e e d s t h e c u r r e n t - l i m i t t h r e s h o l d , t h e a p a 2 0 1 1 / 2 0 1 1 a t u r n s o f f t h e o u t p u t s t a g e t o p r e v e n t t h e o u t p u t d e v i c e f r o m d a m a g e s i n o v e r - c u r r e n t o r s h o r t - c i r - c u i t c o n d i t i o n . t h e i c w i l l t u r n o n t h e o u t p u t b u f f e r a f t e r 1 m s , b u t i f t h e o v e r - c u r r e n t o r s h o r t - c i r c u i t s c o n d i t i o n s t i l l r e m a i n s , i t e n t e r s t h e o v e r - c u r r e n t p r o t e c t i o n a g a i n . t h e s i t u a t i o n w i l l c i r c u l a t e u n t i l t h e o v e r - c u r r e n t o r s h o r t - c i r - c u i t s h a s b e r e m o v e d . thermal protection t h e o v e r - t e m p e r a t u r e c i r c u i t l i m i t s t h e j u n c t i o n t e m p e r a - t u r e o f t h e a p a 2 0 1 1 / 2 0 1 1 a . w h e n t h e j u n c t i o n t e m p e r a - t u r e e x c e e d s t j = + 1 5 0 o c , a t h e r m a l s e n s o r t u r n s o f f t h e o u t p u t b u f f e r , a l l o w i n g t h e d e v i c e s t o c o o l . t h e t h e r m a l s e n s o r a l l o w s t h e a m p l i f i e r t o s t a r t - u p a f t e r t h e j u n c t i o n t e m p e r a t u r e d o w n a b o u t 1 2 5 o c . t h e t h e r m a l p r o t e c t i o n i s d e s i g n e d w i t h a 2 5 o c h y s t e r e s i s t o l o w e r t h e a v e r a g e t j d u r i n g c o n t i n u o u s t h e r m a l o v e r l o a d c o n d i t i o n s , i n - c r e a s i n g l i f e t i m e o f t h e i c . f u n c t i o n d e s c r i p t i o n ( c o n t . ) a l o g i c h i g h a n d l o g i c l o w l e v e l i s t y p i c a l l y 1 . 4 v . i t i s b e s t t o s w i t c h b e t w e e n t h e g r o u n d a n d t h e s u p p l y v o l t a g e v d d t o p r o v i d e m a x i m u m d e v i c e p e r f o r m a n c e . b y s w i t c h i n g t h e s d p i n t o a l o w l e v e l , t h e a m p l i f i e r e n t e r s a l o w - c o n s u m p - t i o n - c u r r e n t s t a t e , i d d f o r a p a 2 0 1 1 / 2 0 1 1 a i s i n s h u t d o w n m o d e . o n n o r m a l o p e r a t i n g , a p a 2 0 1 1 / 2 0 1 1 a ? s s d p i n s h o u l d p u l l t o a h i g h l e v e l t o k e e p t h e i c o u t o f t h e s h u t - d o w n m o d e . t h e s d p i n s h o u l d b e t i e d t o a d e f i n i t e v o l t - a g e t o a v o i d u n w a n t e d s t a t e c h a n g e s . free datasheet http:///
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 4 - a u g . , 2 0 1 3 w w w . a n p e c . c o m . t w 1 9 a p a 2 0 1 1 / 2 0 1 1 a a p p l i c a t i o n i n f o r m a t i o n square wave into the speaker a p p l y t h e s q u a r e w a v e i n t o t h e s p e a k e r m a y c a u s e t h e v o i c e c o i l o f s p e a k e r j u m p o u t t h e a i r g a p a n d d e f a c e t h e v o i c e c o i l . h o w e v e r , t h i s d e p e n d s o n t h e a m p l i t u d e o f s q u a r e w a v e i s h i g h e n o u g h a n d t h e b a n d w i d t h o f s p e a k e r i s h i g h e r t h a n t h e s q u a r e w a v e ? s f r e q u e n c y . f o r 5 0 0 k h z s w i t c h i n g f r e q u e n c y , t h i s i s n o t i s s u e d f o r t h e s p e a k e r b e c a u s e t h e f r e q u e n c y i s b e y o n d t h e a u d i o b a n d a n d c a n ? t s i g n i f i c a n t l y m o v e t h e v o i c e c o i l , a s c o n e m o v e m e n t i s p r o p o r t i o n a l t o 1 / f 2 f o r f r e q u e n c y o u t o f a u d i o b a n d . input resistor, r i t h e a p a 2 0 1 1 / 2 0 1 1 a ? s i n p u t r e s i s t o r i s f i x e d a n d t h e v a l u e i s 2 5 k w . t h e i n p u t r e s i s t a n c e h a s w i d e v a r i a t i o n ( + / - 5 % ) i s c a u s e d b y m a n u f a c t u r e . t h e g a i n a l s o c a n b e s e t b y t h e e x t e r n a l r e s i s t o r s ( r i e x r ) . input capacitor, c i i n t h e t y p i c a l a p p l i c a t i o n , a n i n p u t c a p a c i t o r , c i , i s r e q u i r e d t o a l l o w t h e a m p l i f i e r t o b i a s t h e i n p u t s i g n a l t o t h e p r o p e r d c l e v e l f o r o p t i m u m o p e r a t i o n . i n t h i s c a s e , c i a n d t h e i n p u t i m p e d a n c e r i f o r m a h i g h - p a s s f i l t e r w i t h t h e c o r n e r f r e q u e n c y d e t e r m i n e d i n t h e f o l l o w i n g e q u a t i o n : ( 4 ) i i ) c(highpass c r 2 1 f p = t h e v a l u e o f c i m u s t b e c o n s i d e r e d c a r e f u l l y b e c a u s e i t d i r e c t l y a f f e c t s t h e l o w f r e q u e n c y p e r f o r m a n c e o f t h e c i r c u i t . w h e r e r i i s 2 5 k w ( m i n i m u m ) a n d t h e s p e c i f i c a t i o n c a l l s f o r a f l a t b a s s r e s p o n s e d o w n t o 1 0 0 h z . e q u a t i o n i s r e c o n f i g u r e d a s b e l o w : c i i f r 2 1 c p = ( 5 ) w h e n t h e i n p u t r e s i s t a n c e v a r i a t i o n i s c o n s i d e r e d , t h e c i i s 0 . 0 6 4 m f , s o a v a l u e i n t h e r a n g e o f 0 . 1 m f t o 0 . 2 2 m f w o u l d b e c h o s e n . a f u r t h e r c o n s i d e r a t i o n f o r t h i s c a p a c i - t o r i s t h e l e a k a g e p a t h f r o m t h e i n p u t s o u r c e t h r o u g h t h e i n p u t n e t w o r k ( r i + r f , c i ) t o t h e l o a d . t h i s l e a k a g e c u r r e n t c r e a t e s a d c o f f s e t v o l t a g e a t t h e i n p u t t o t h e a m p l i f i e r t h a t r e d u c e s u s e f u l h e a d r o o m , e s p e c i a l l y i n h i g h g a i n a p p l i c a t i o n s . f o r t h i s r e a s o n , a l o w - l e a k a g e t a n t a l u m o r c e r a m i c c a p a c i t o r i s t h e b e s t c h o i c e . w h e n p o l a r i z e d c a - p a c i t o r s a r e u s e d , t h e p o s i t i v e s i d e o f t h e c a p a c i t o r s h o u l d f a c e t h e a m p l i f i e r i n p u t i n m o s t a p p l i c a t i o n s b e c a u s e t h e d c l e v e l o f t h e a m p l i f i e r i n p u t i s h e l d a t v d d / 2 . p l e a s e n o t e t h a t i t i s i m p o r t a n t t o c o n f i r m t h e c a p a c i t o r p o l a r i t y i n t h e a p p l i c a t i o n . ferrite bead selection i f t h e t r a c e s f o r m a p a 2 0 1 1 / 2 0 1 1 a t o s p e a k e r i s s h o r t , t h e f e r r i t e b e a d f i l t e r s c a n r e d u c e t h e h i g h f r e q u e n c y r a d i a t e d t o m e e t t h e f c c & c e r e q u i r e d . a f e r r i t e t h a t h a s v e r y l o w i m p e d a n c e a t l o w f r e q u e n c i e s a n d h i g h i m p e d a n c e a t h i g h f r e q u e n c i e s ( a b o v e 1 m h z ) i s r e c o m m e n d e d . output low-pass filter i f t h e t r a c e s f o r m a p a 2 0 1 1 / 2 0 1 1 a t o s p e a k e r a r e s h o r t , i t d o n ? t r e q u i r e o u t p u t f i l t e r f o r f c c & c e s t a n d a r d . a f e r r i t e b e a d m a y b e n e e d e d i f i t ? s f a i l i n g t h e t e s t f o r f c c o r c e t e s t e d w i t h o u t t h e l c f i l t e r . t h e f i g u r e 5 i s t h e s a m p l e f o r a d d e d f e r r i t e b e a d ; t h e f e r r i t e s h o w c h o o s i n g h i g h i m p e d a n c e i n h i g h f r e q u e n c y . f i g u r e 5 . f e r r i t e b e a d o u t p u t f i l t e r f i g u r e 6 a n d 7 a n d a r e e x a m p l e s f o r a d d e d t h e l c f i l t e r ( b u t t e r w o r t h ) , i t ? s r e c o m m e n d e d f o r t h e s i t u a t i o n t h a t t h e t r a c e f o r m a m p l i f i e r t o s p e a k e r i s t o o l o n g , a n d n e e d s t o e l i m i n a t e t h e r a d i a t e d e m i s s i o n o r e m i . v on v op 4 w 1n f 1n f ferrite bead ferrite bead ( 3 ) 6 . 5 ) r & r ( riexr k 25 k 100 6 . 5 r r k 100 a 2 i 1 i iexr i v + w w = + w = f o r f u l l y d i f f e r e n t i a l o p e r a t i n g , t h e r i e x r ( r i 1 & r i 2 ) m a t c h i s v e r y i m p o r t a n t f o r c m r r , p s r r , a n d h a r m o n i c d i s t o r t i o n p e r f o r m a n c e . i t ? s r e c o m m e n d e d t o u s e 1 % t o l e r a n c e r e - s i s t o r o r b e t t e r . k e e p t h e i n p u t t r a c e a s s h o r t a s p o s s i b l e t o l i m i t t h e n o i s e i n j e c t i o n . t h e g a i n i s r e c o m m e n d e d t o s e t 5 . 6 v / v o r l o w e r f o r o p t i m a l t h e a p a 2 0 1 1 / 2 0 1 1 a ? s p e r f o r m a n c e . free datasheet http:///
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 4 - a u g . , 2 0 1 3 w w w . a n p e c . c o m . t w 2 0 a p a 2 0 1 1 / 2 0 1 1 a output low-pass filter (cont.) a p p l i c a t i o n i n f o r m a t i o n ( c o n t . ) outp outn 8 w 1 m f 36 m h 36 m h 1 m f f i g u r e 6 . l c o u t p u t f i l t e r f o r 8 w s p e a k e r outp outn 4 w 2.2 m f 18 m h 18 m h 2.2 m f f i g u r e 7 . l c o u t p u t f i l t e r f o r 4 w s p e a k e r f i g u r e 6 a n d 7 ? s l o w p a s s f i l t e r c u t - o f f f r e q u e n c y a r e 2 5 k h z ( f c ) . ( 6 ) power-supply decoupling capacitor, c s t h e a p a 2 0 1 1 / 2 0 1 1 a i s a h i g h - p e r f o r m a n c e c m o s a u d i o a m p l i f i e r t h a t r e q u i r e s a d e q u a t e p o w e r s u p p l y d e c o u p l i n g t o e n s u r e t h e o u t p u t t o t a l h a r m o n i c d i s t o r t i o n ( t h d ) i s a s l o w a s p o s s i b l e . p o w e r s u p p l y d e c o u p l i n g a l s o p r e v e n t s t h e o s c i l l a t i o n s b e i n g c a u s e d b y l o n g l e a d l e n g t h b e - t w e e n t h e a m p l i f i e r a n d t h e s p e a k e r . t h e o p t i m u m d e c o u p l i n g i s a c h i e v e d b y u s i n g t w o d i f f e r - e n t t y p e s o f c a p a c i t o r s t h a t t a r g e t s o n d i f f e r e n t t y p e s o f n o i s e o n t h e p o w e r s u p p l y l e a d s . f o r h i g h e r f r e q u e n c y t r a n s i e n t s , s p i k e s , o r d i g i t a l h a s h o n t h e l i n e , a g o o d l o w e q u i v a l e n t - s e r i e s - r e s i s t a n c e ( e s r ) c e r a m i c c a p a c i t o r , t y p i c a l l y 0 . 1 m f p l a c e d a s c l o s e a s p o s s i b l e t o t h e d e v i c e v d d p i n f o r w o r k s b e s t . f o r f i l t e r i n g l o w e r f r e q u e n c y n o i s e s i g n a l s , a l a r g e a l u m i n u m e l e c t r o l y t i c c a p a c i t o r o f 1 0 m f o r g r e a t e r p l a c e d n e a r t h e a u d i o p o w e r a m p l i f i e r i s r e c o m m e n d e d . layout recommendation f i g u r e 8 . w l c s p 1 . 5 x 1 . 5 - 9 l a n d p a t t e r n r e c o m m e n d a - t i o n f i g u r e 9 . t d f n 3 x 3 - 8 l a n d p a t t e r n r e c o m m e n d a t i o n 0.65mm 1.8mm ground plane for thermalpad 2 . 5 m m 0.35mm 1.2mm 0.275mm thermalvia diamater 12milx5 1 . a l l c o m p o n e n t s s h o u l d b e p l a c e d c l o s e t o t h e a p a 2 0 1 1 / 2 0 1 1 a . f o r e x a m p l e , t h e i n p u t c a p a c i t o r ( c i ) s h o u l d b e c l o s e t o a p a 2 0 1 1 / 2 0 1 1 a ? s i n p u t p i n s t o a v o i d c a u s i n g n o i s e c o u p l i n g t o a p a 2 0 1 1 / 2 0 1 1 a ? s h i g h i m p e d a n c e i n p u t s ; t h e d e c o u p l i n g c a p a c i t o r ( c s ) s h o u l d b e p l a c e d b y t h e a p a 2 0 1 1 ? s p o w e r p i n t o d e c o u p l e t h e p o w e r r a i l n o i s e . 9x f 0.275mm . 0.5mm 0 . 5 m m lc 2 1 f c(lowpass) p = free datasheet http:///
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 4 - a u g . , 2 0 1 3 w w w . a n p e c . c o m . t w 2 1 a p a 2 0 1 1 / 2 0 1 1 a layout recommendation (cont.) a p p l i c a t i o n i n f o r m a t i o n ( c o n t . ) 2 . t h e o u t p u t t r a c e s s h o u l d b e s h o r t , w i d e ( > 5 0 m i l ) a n d s y m m e t r i c . 3 . t h e i n p u t t r a c e s h o u l d b e s h o r t a n d s y m m e t r i c . 4 . t h e p o w e r t r a c e w i d t h s h o u l d g r e a t e r t h a n 5 0 m i l . 5 . t h e t d f n 3 x 3 - 8 t h e r m a l p a d s h o u l d b e s o l d e r e d o n p c b , a n d t h e g r o u n d p l a n e n e e d s s o l d e r e d m a s k ( t o a v o i d s h o r t c i r c u i t ) e x c e p t t h e t h e r m a l p a d a r e a . free datasheet http:///
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 4 - a u g . , 2 0 1 3 w w w . a n p e c . c o m . t w 2 2 a p a 2 0 1 1 / 2 0 1 1 a p a c k a g e i n f o r m a t i o n w l c s p 1 . 5 x 1 . 5 - 9 e d a2 a1 a e e b pin a1 s y m b o l min. max. 0.67 0.20 0.29 0.31 1.47 1.53 0.24 a a1 b d e e millimeters a2 0.33 0.43 0.50 bsc wlcsp1.5x1.5-9 0.020 bsc min. max. inches 0.026 0.008 0.013 0.017 0.011 0.012 0.058 0.060 0.009 0.53 0.021 1.47 1.53 0.058 0.060 free datasheet http:///
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 4 - a u g . , 2 0 1 3 w w w . a n p e c . c o m . t w 2 3 a p a 2 0 1 1 / 2 0 1 1 a p a c k a g e i n f o r m a t i o n t d f n 3 x 3 - 8 d e pin 1 a b a1 a3 s y m b o l min. max. 0.80 0.00 0.25 0.35 1.90 2.40 0.05 1.40 a a1 b d d2 e e2 e l millimeters a3 0.20 ref tdfn3x3-8 0.30 0.50 1.75 0.008 ref min. max. inches 0.031 0.000 0.010 0.014 0.075 0.094 0.055 0.012 0.020 0.70 0.069 0.028 0.002 0.65 bsc 0.026 bsc 0.20 0.008 k 2.90 3.10 0.114 0.122 2.90 3.10 0.114 0.122 pin 1 corner d2 e e 2 k l free datasheet http:///
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 4 - a u g . , 2 0 1 3 w w w . a n p e c . c o m . t w 2 4 a p a 2 0 1 1 / 2 0 1 1 a application a h t1 c d d w e1 f 178.0 ? 2.00 50 min. 8.4+2.00 - 0.00 13.0+0.50 - 0.20 1.5 min. 20.2 min. 8.0 ? 0.30 1.75 ? 0.10 3.5 ? 0.05 p 0 p1 p 2 d 0 d1 t a 0 b 0 k 0 wlcsp1.5x1.5 - 9 4.0 ? 0.10 4.0 ? 0.10 2.0 ? 0.05 1.5+0.10 - 0.00 1.5 min. 0.6+0.00 - 0.40 1.70 ? 0.20 1.70 ? 0.20 0.90 ? 0.20 application a h t1 c d d w e1 f 178.0 ? 2.00 50 min. 12.4+2.00 - 0.00 13.0+0.50 - 0.20 1.5 min. 20.2 min. 12.0 ? 0.30 1.75 ? 0.10 5.5 ? 0.05 p 0 p1 p 2 d 0 d1 t a 0 b 0 k 0 tdfn3x3 - 8 4.0 ? 0.10 8.0 ? 0.10 2.0 ? 0.05 1. 5+0.10 - 0.00 1.5 min. 0.6+0.00 - 0.40 3.30 ? 0.20 3.30 ? 0.20 1.30 ? 0.20 (mm) c a r r i e r t a p e & r e e l d i m e n s i o n s package type unit quantity wlcsp1.5x1.5 - 9 tape & reel 3000 tdfn3x3 - 8 tape & reel 3000 d e v i c e s p e r u n i t a e 1 a b w f t p0 od0 b a0 p2 k0 b 0 section b-b section a-a od1 p1 h t1 a d free datasheet http:///
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 4 - a u g . , 2 0 1 3 w w w . a n p e c . c o m . t w 2 5 a p a 2 0 1 1 / 2 0 1 1 a t a p i n g d i r e c t i o n i n f o r m a t i o n w l c s p 1 . 5 x 1 . 5 - 9 t d f n 3 x 3 - 8 user direction of feed user direction of feed free datasheet http:///
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 4 - a u g . , 2 0 1 3 w w w . a n p e c . c o m . t w 2 6 a p a 2 0 1 1 / 2 0 1 1 a c l a s s i f i c a t i o n r e f l o w p r o f i l e s profile feature sn - pb eutectic assembly pb - free assembly preheat & soak temperature min (t smin ) temperature max (t smax ) time (t smin to t smax ) ( t s ) 100 c 150 c 60 - 120 seconds 150 c 200 c 60 - 1 2 0 seconds average ramp - up rate (t smax to t p ) 3 c/second ma x. 3 c/second max. liquidous temperature ( t l ) time at l iquidous (t l ) 183 c 60 - 150 seconds 217 c 60 - 150 seconds peak package body temperature (t p ) * see classification temp in table 1 see classification temp in table 2 time (t p ) ** within 5 c of the spec ified c lassification t emperature ( t c ) 2 0 ** seconds 3 0 ** seconds average r amp - down rate (t p to t smax ) 6 c/second max. 6 c/second max. time 25 c to p eak t emperature 6 minutes max. 8 minutes max. * tolerance for peak profile temperature (t p ) is defined a s a supplier minimum and a user maximum. ** tolerance for time at peak profile temperature (t p ) is defined as a supplier minimum and a user maximum. c l a s s i f i c a t i o n p r o f i l e free datasheet http:///
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 4 - a u g . , 2 0 1 3 w w w . a n p e c . c o m . t w 2 7 a p a 2 0 1 1 / 2 0 1 1 a c u s t o m e r s e r v i c e a n p e c e l e c t r o n i c s c o r p . head office : no.6, dusing 1st road, sbip, hsin-chu, taiwan, r.o.c. tel : 886-3-5642000 fax : 886-3-5642050 t a i p e i b r a n c h : 2 f , n o . 1 1 , l a n e 2 1 8 , s e c 2 j h o n g s i n g r d . , s i n d i a n c i t y , t a i p e i c o u n t y 2 3 1 4 6 , t a i w a n t e l : 8 8 6 - 2 - 2 9 1 0 - 3 8 3 8 f a x : 8 8 6 - 2 - 2 9 1 7 - 3 8 3 8 table 2. pb - free process ? classification temperatures (tc) package thickness volume mm 3 <350 volume mm 3 350 - 2000 volume mm 3 >2000 <1.6 mm 260 c 260 c 260 c 1.6 mm ? 2.5 mm 260 c 250 c 245 c 3 2.5 mm 250 c 245 c 245 c table 1. snpb eutectic process ? classification temperatures (tc) package thickness volume mm 3 <350 volume mm 3 3 350 <2.5 mm 235 c 22 0 c 3 2.5 mm 220 c 220 c r e l i a b i l i t y t e s t p r o g r a m c l a s s i f i c a t i o n r e f l o w p r o f i l e s ( c o n t . ) test item method description solderability jesd - 22, b102 5 sec, 245 c holt jesd - 22, a108 1000 hrs, bias @ t j =125 c pct jesd - 22, a102 168 hrs, 100 % rh, 2atm , 121 c tct jesd - 22, a104 500 cycles, - 65 c~150 c hbm mil - std - 883 - 3015.7 vhbm ? 2kv mm jesd - 22, a1 15 vmm ? 200v latch - up jesd 78 10ms, 1 tr ? 100ma free datasheet http:///

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