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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 . 1 - m a r . , 2 0 1 1 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 . 3 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 a p a 2 0 1 0 b the apa2010b is a mono, filter-free class-d audio am- plifier available in wlcsp-9 packages. the gain can be set by an external input resistance. high psrr and dif- ferential architecture provide increased immunity to noise and rf rectification. in addition to these features, a fast startup time and small package size make the apa2010b an ideal choice for both cellular handsets and pdas. the apa2010b is capable of driving 1.5w at 5v or 730mw at 3.6v into 8 w . it is also capable of driving 4 w . the apa2010b 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 architecture eliminates the output filter, reduces the external compo- nent count, board area, and system costs, and simplifies the design. moreover, the apa2010b provides thermal and over-cur- rent protections. 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 e p h o n e s h a n d s e t s 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 s 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 % l o w s u p p l y c u r r e n t ? i d d = 2 m a a t v d d = 5 v ? i d d = 1 . 6 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 ? 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 ? 2 . 4 w , a t v d d = 5 v , r l = 4 w (wlcsp-9) ? 2 . 1 w , a t v d d = 5 v , r l = 4 w ? 1 . 2 w , a t v d d = 3 . 6 v , r l = 4 w a t 1 0 % t h d + n ? 3 . 1 w , a t v d d = 5 v , r l = 4 w (wlcsp-9) ? 2 . 6 5 w , a t v d d = 5 v , r l = 4 w ? 1 . 3 w , a t v d d = 3 . 6 v , r l = 4 w 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 : 8 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 - 9 b u m p 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 ) p i n c o n f i g u r a t i o n ( n o t e 1 ) n o t e 1 : t h e m a r k i n g f o r a p a 2 0 1 0 b i s ? a 2 0 ? wlcsp1.5x1.5-9a (top view) date code a20 x marking pin a1 von (a3) pgnd (b3) vop (c3) gnd (a2) pvdd (b2) sd (c2) vdd (b1) inn (c1) inp (a1)
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 . 1 - m a r . , 2 0 1 1 w w w . a n p e c . c o m . t w 2 a p a 2 0 1 0 b 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 2 ) (over operating free - air temperature range unless otherwise noted.) symbol parameter rating unit v dd supply voltage (vdd, pvdd) - 0.3 to 6 v v in , v sd input voltage (sd, inp, inn) - 0.3 to 6 v t a operating ambient temperature range - 40 to 85 o c t j maximum junction temperature 150 o c t stg storage temperature range - 65 to +150 o c t s dr maximum lead soldering temperature, 10 seconds 260 o c p d power dissipation internally limited w note2: stresses beyond those listed under "absolute maxim um ratings" may cause permanent damage to the device. these are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. exposure to absolute maximum rating conditions for extended periods may affect device reliability 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 3 ) wlcsp1.5x1.5 - 9a 165 o c /w note 3 : please refer to ? layout recommendation?, the thermalpad on the bottom of the ic should soldered directly to the pcb's thermalpad area that with several thermal vias connect to the ground plan, and the pcb is a 2-layer, 5-inch square area with 2oz copper thickness . 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 note : anpec lead-free products contain molding compounds/die attach materials and 100% matte tin plate termination finish; which are fully compliant with rohs. anpec lead-free products meet or exceed the lead-free requirements of ipc/jedec j-std-020d for msl classification at lead-free peak reflow temperature. anpec defines ?green? to mean lead-free (rohs compliant) and halogen free (br or cl does not exceed 900ppm by weight in homogeneous material and total of br and cl does not exceed 1500ppm by weight). apa2010b handling code temperature range package code package code ha : wlcsp1.5x1.5-9a operating ambient temperature range i : -40 to 85 o c handling code tr : tape & reel assembly material g : halogen and lead free device assembly material apa2010b ha: x - date code a20 x
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 . 1 - m a r . , 2 0 1 1 w w w . a n p e c . c o m . t w 3 a p a 2 0 1 0 b 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 v ih high level threshold voltage sd 1 - v v il low level threshold voltage sd - 0.35 v 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 v dd = 5v, gnd = 0v, t a = 25 o c (unless otherwise noted) apa2010b symbol parameter test condition s min. typ. max. unit i dd supply current - 2 - ma i sd shutdown current sd = 0v - 1 - m a i i input current sd - 0. 1 - m a f osc oscillator frequency 200 250 300 khz p - channel mosfet (wlcsp1.5x1.5 - 9a) - 340 - v dd = 5v n - channel mosfet (wlcsp1.5x1.5 - 9a) - 195 - p - channel mosfet (wlcsp1.5x1.5 - 9a) - 400 - v dd = 3.6v n - channel mosfet (wlcsp1. 5x1.5 - 9a) - 215 - p - channel mosfet (wlcsp1.5x1.5 - 9a) - 550 - r dscon static drain - source on - state resistance v dd = 2.4v n - channel mosfet (wlcsp1.5x1.5 - 9a) - 260 - m w v dd =5v, t a =25 x c r l = 4 w (wlcsp1.5x1.5 - 9a) - 2.45 - r l = 4 w - 2.1 - thd +n = 1%, f in = 1khz r l = 8 w 1 1.3 - r l = 4 w (wlcsp1.5x1.5 - 9a) - 3.1 - r l = 4 w - 2.65 - p o output power thd +n = 10%, f in = 1khz r l = 8 w - 1.6 - w r l = 4 w p o = 1.6 w - 0.3 - thd+n total harmonic distortion pulse noise f in = 1khz r l = 8 w p o = 0.96 w - 0.1 - % psrr power supply rejection ratio r l = 8 w , f in = 217 hz - 80 - db v os output offset voltage r l = 8 w 2 5 mv s/n w ith a - weighting filter p o = 0.96 w, r l = 8 w - 90 - db vn noise output voltage w ith a - weig hting filter - 100 - m v (rms)
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 . 1 - m a r . , 2 0 1 1 w w w . a n p e c . c o m . t w 4 a p a 2 0 1 0 b 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 dd = 5v, gnd = 0v, t a = 25 o c (unless otherwise noted) apa2010b symbol parameter test condition s min. typ. max. unit v dd = 3.6 v, t a =25 x c r l = 4 w ( wlcsp1.5x1.5 - 9a) - 1.2 - r l = 4 w - 1.1 - thd +n = 1%, f in = 1khz r l = 8 w - 0.6 - r l = 4 w ( wlcsp1.5x1.5 - 9a) - 1.5 - r l = 4 w - 1.35 - p o output power thd +n = 10%, f in = 1khz r l = 8 w - 0.8 - w r l = 4 w p o = 0.82 w, - 0.35 - thd+n total harmonic distortion pulse noise f in = 1khz r l = 8 w p o = 0.45 w - 0.1 - % psrr power supply re jection ratio r l = 8 w , f in = 217 hz - 75 - db v os output offset voltage r l = 8 w - - 25 mv s/n w ith a - weighting filter p o = 0.43 w, r l = 8 w , - 85 - db vn noise output voltage w ith a - weighting filter - 105 - m v (rms) v dd = 2.5 v, t a =25 x c r l = 4 w - 0 .45 - thd +n = 1%, f in = 1khz r l = 8 w - 0.3 - r l = 4 w - 0.55 - p o output power thd +n = 1 0%, f in = 1khz r l = 8 w - 0.35 - w p o = 0.34 w, r l = 4 w - 0.35 - thd+n total harmonic distortion pulse noise f in = 1khz p o = 0.22 w, r l = 8 w - 0.2 - % psrr power supply rejection ratio r l = 8 w , f in = 217 hz - 70 - db v os output offset voltage r l = 8 w - - 25 mv s/n w ith a - weighting filter p o = 0.2 w, r l = 8 w - 83 - db vn noise output voltage with a - weighting filter - 120 - m v (rms)
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 . 1 - m a r . , 2 0 1 1 w w w . a n p e c . c o m . t w 5 a p a 2 0 1 0 b e f f i c i e n c y v s . o u t p u t p o w e r efficiency vs. output power (4 w ) o u t p u t p o w e r v s . l o a d r e s i s t a n c e o u t p u t p o w e r v s . l o a d r e s i s t a n c e 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 o u t p u t p o w e r v s . s u p p l y v o l t a g e t h d + n v s . o u t p u t p o w e r 0 10 20 30 40 50 60 70 80 90 0 0.2 0.4 0.6 0.8 1.0 1.2 e f f i c i e n c y ( % ) output power (w) 100 r l =8 w &33 m h f in =1khz c in =0.47 m f r in =150k w 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 0.4 0.8 1.2 1.6 2.0 output power (w) e f f i c i e n c y ( % ) r l =4 w &33 m h f in =1khz c in =0.47 m f r in =150k w aux-0025 aes-17 (20khz) v dd =3.6v v dd =5v v dd =2.4v 0 0.4 0.8 1.2 1.6 2 2.4 2.8 3.2 4 8 12 16 20 24 28 32 o u t p u t p o w e r ( w ) load resistance ( w ) v dd =5v ,wlcsp-9 v dd =3.6v ,wlcsp-9 v dd =2.4v ,wlcsp-9 v dd =5v v dd =3.6v v dd =2.4v thd+n=10% f in =1 k hz c i n =0.22 m f r i n = 1 50k w aux-0025 aes-17(20khz) o u t p u t p o w e r ( w ) load resistance ( w ) 0 0.5 1 1.5 2 2.5 4 8 12 16 20 24 28 32 v dd =5v ,wlcsp-9 v dd =5v v dd =3.6v ,wlcsp-9 v dd =2.4v ,wlcsp-9 v dd =3.6v v dd =2.4v thd+n=1% f in =1 k hz c i n =0.22 m f r i n = 1 50k w aux-0025 aes-17(20khz) 0 0.4 0.8 1.2 1.6 2 2.4 2.8 3.2 2.4 2.8 3.2 3.6 4 4.4 4.8 5 r l =4 w ,wlcsp-9, thd+n=10% r l =4 w ,wlcsp-9, thd+n=1% r l =4 w , thd+n=10% r l =4 w , thd+n=1% r l =8 w ,wlcsp-9, thd+n=10% r l =8 w ,wlcsp-9, thd+n=1% r l =8 w , thd+n=10% r l =8 w , thd+n=1% o u t p u t p o w e r ( w ) supply voltage (volt) f in =1 k hz c i n =0.22 m f r i n = 1 50k w aux-0025 aes-17(20khz) 0.0 1 10 0.1 1 0 3.2 0.4 0.8 1.2 1.6 2 2.4 2.8 output power (w) t h d + n ( % ) v dd =2.4v v dd = 3 . 6 v v dd = 5 v f in =1 k hz c i n =0.22 m f r i n = 1 50k w r l = 4 w aux-0025 aes-17(20khz) wlcsp-9
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 . 1 - m a r . , 2 0 1 1 w w w . a n p e c . c o m . t w 6 a p a 2 0 1 0 b t h d + n v s . f r e q u e n c y t h d + n v s . o u t p u t p o w e r 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 . ) t h d + n v s . f r e q u e n c y t h d + n v s . f r e q u e n c y t h d + n v s . f r e q u e n c y t h d + n v s . o u t p u t p o w e r 0.01 10 0.1 1 0 2.8 0.4 0.8 1.2 1.6 2 2.4 v dd = 5 v v dd = 3 . 6 v v dd =2.4v output power (w) t h d + n ( % ) f in =1 k hz c i n =0.22 m f r i n = 1 50k w r l = 4 w aux-0025 aes-17(20khz) 0.01 10 0.1 1 20 20k 100 1k 10k frequency (hz) t h d + n ( % ) p o =1.6w p o =0.8w v dd =5v c in =0.47 m f r in =150k w r l =4 w aux-0025 aes-17 (20khz) 0.01 10 0.1 1 20 20k 100 1k 10k t h d + n ( % ) frequency (hz) v dd =3.6v c in =0.47 m f r in =150k w r l =4 w aux-0025 aes-17 (20khz) p o =0.82w p o =0.41w 0.01 10 0.1 1 20 20k 100 1k 10k v dd =2.4v c in =0.47 m f r in =150k w r l =4 w aux-0025 aes-17 (20khz) p o =0.34w p o =0.17w frequency (hz) t h d + n ( % ) 0.01 10 0.1 1 0 1.8 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 v dd =2.4v v dd = 3 . 6 v v dd = 5 v output power (w) t h d + n ( % ) f in =1 k hz c i n =0.22 m f r i n = 1 50k w r l = 8 w aux-0025 aes-17(20khz) 0.005 10 0.01 0.1 1 20 20k 100 1k 10k t h d + n ( % ) v dd =5v c in =0.47 m f r in =150k w r l =8 w aux-0025 aes-17 (20khz) frequency (hz) p o =0.96w p o =0.48w
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 . 1 - m a r . , 2 0 1 1 w w w . a n p e c . c o m . t w 7 a p a 2 0 1 0 b f r e q u e n c y r e s p o n s e c m r r v s . f r e q u e n c y c m r r v s . f r e q u e n c y 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 . ) p s r r v s . f r e q u e n c y t h d + n v s . f r e q u e n c y t h d + n v s . f r e q u e n c y 0.005 10 0.01 0.1 1 20 20k 100 1k 10k v dd =3.6v c in =0.47 m f r in =150k w r l =8 w aux-0025 aes-17 (20khz) t h d + n ( % ) frequency (hz) p o =0.45w p o =0.23w 0.005 10 0.01 0.1 1 20 20k 100 1k 10k v dd =2.4v c in =0.47 m f r in =150k w r l =8 w aux-0025 aes-17 (20khz) p o =0.22w p o =0.11w frequency (hz) t h d + n ( % ) g a i n ( d b ) p h a s e ( d e g ) frequency (hz) -180 +20 -160 -140 -120 -100 -80 -60 -40 -20 +0 +0 +10 +1 +2 +3 +4 +5 +6 +7 +8 +9 10 50k 20 50 100 200 500 1k 2k 5k 10k 20k phase gain v dd =5v c in =0.47 m f r in =150k w p o =0.156w r l =8 w aux-0025 aes-17 (20khz) frequency (hz) 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 ) -60 +0 -50 -40 -30 -20 -10 20 20k 50 100 200 500 1k 2k 5k 10k v dd =2.4v v dd =3.6v v dd =5v c in =0.47 m f r in =150k w r l =4 w inputs short aux-0025 aes-17 (20khz) -60 +0 -50 -40 -30 -20 -10 20 20k 50 100 200 500 1k 2k 5k 10k c in =0.47 m f r in =150k w r l =8 w inputs short aux-0025 aes-17 (20khz) frequency (hz) 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 =2.4v v dd =3.6v v dd =5v -100 +0 -90 -80 -70 -60 -50 -40 -30 -20 -10 20 20k 50 100 200 500 1k 2k 5k 10k t c in =0.47 m f r in =150k w r l =4 w aux-0025 aes-17 (20khz) 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 =2.4v v dd =3.6v v dd =5v frequency (hz)
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 . 1 - m a r . , 2 0 1 1 w w w . a n p e c . c o m . t w 8 a p a 2 0 1 0 b o u t p u t n o i s e v o l t a g e v s . f r e q u e n c y s u p p l y c u r r e n t v s . o u t p u t p o w e r 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 . ) s u p p l y c u r r e n t v s . s u p p l y v o l t a g e o u t p u t n o i s e v o l t a g e v s . f r e q u e n c y s u p p l y c u r r e n t v s . o u t p u t p o w e r 0 0.5 1 1.5 2 2.5 0 1 2 3 4 5 6 s u p p l y c u r r e n t ( m a ) supply voltage (volt) no load p s r r v s . f r e q u e n c y 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 ) frequency (hz) -100 +0 -90 -80 -70 -60 -50 -40 -30 -20 -10 20 20k 50 100 200 500 1k 2k 5k 10k t t t c in =0.47 m f r in =150k w r l =8 w inputs short aux-0025 aes-17 (20khz) v dd =2.4v v dd =3.6v v dd =5v 10 m 200 m 20 m 30 m 40 m 50 m 70 m 100 m 20 20k 50 100 200 500 1k 2k 5k 10k c in =0.47 m f r in =150k w r l =4 w inputs short to gnd aux-0025 lpf=22khz a-weighting frequency (hz) o u t p u t n o i s e v o l t a g e ( m v ) v dd =2.4v v dd =3.6v v dd =5v 10 m 200 m 20 m 30 m 40 m 50 m 70 m 100 m 20 20k 50 100 200 500 1k 2k 5k 10k frequency (hz) c in =0.47 m f r in =150k w r l =8 w inputs short to gnd aux-0025 lpf=22khz a-weighting o u t p u t n o i s e v o l t a g e ( m v ) v dd =2.4v v dd =3.6v v dd =5v 0 0.05 0.1 0.15 0.2 0.25 0.3 0 0.2 0.4 0.6 0.8 1 1.2 1.4 r l =8 w &33 m h f in =1khz c in =0.47 m f r in =150k w aux-0025 aes-17 (20khz) v dd =5v v dd =3.6v v dd =2.4v output power (w) s u p p l y c u r r e n t ( a ) 0 0.1 0.2 0.3 0.4 0.5 0.6 0 0.5 1 1.5 2 2.5 v dd =2.4v v dd =3.6v v dd =5v r l =4 w &33 m h f in =1khz c in =0.47 m f r in =150k w aux-0025 aes-17 (20khz) s u p p l y c u r r e n t ( a ) output power (w)
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 . 1 - m a r . , 2 0 1 1 w w w . a n p e c . c o m . t w 9 a p a 2 0 1 0 b g s m p o w e r s u p p l y r e j e c t i o n v s . t i m e g s m p o w e r s u p p l y r e j e c t i o n v s . f r e q u e n c y c o m m o n m o d e r e j e c t i o n r a t i o v s . c o m m o n m o d e i n p u t v o l t a g e 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 . ) s h u t d o w n c u r r e n t v s . s u p p l y v o l t a g e 0 0.2 0.4 0.6 0.8 1 0 1 2 3 4 5 6 no load supply voltage (volt) s h u t d o w n c u r r e n t ( m a ) v d d ( d b v ) -150 +0 -100 -50 0 2k 400 800 1.2k 1.6k -150 +0 -100 -50 frequency (hz) v o u t ( d b v ) v dd 200mv/div v out 10mv/div high 3.6v low 3.088v 2ms/div -60 +0 -50 -40 -30 -20 -10 0 5 1 2 3 4 v dd =2.4v v dd =3.6v v dd =5v 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 ) common mode input voltage (volt)
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 . 1 - m a r . , 2 0 1 1 w w w . a n p e c . c o m . t w 1 0 a p a 2 0 1 0 b pin (wlcsp1.5x1.5 - 9a) no. name i/o f unction a1 inp i t he non - inverting input of amplifier . in p is connected to gnd via a capacitor for single - end ( se) input signal. a2 gnd - ground connection for circuitry. a3 von o the negative output termi nal of class - d amplifier. b1 vdd - supply voltage input pin. b2 pvdd - supply voltage only for power stage. b3 pgnd - ground connection for power stage c1 inn i t he inverting input of amplifier . in n is used as audio input terminal, typically. c2 sd i shutdown mode control signal input, place entire ic in shutdown mode when held low. c3 vop o the positive output terminal of class - d amplifier. p i n d e s c r i p t i o n b l o c k d i a g r a m startup protection logic biases & reference gate drive gate drive pvdd von pgnd inp inn over-current protection thermal protection ramp gen, ttl input buffer sd vop a v =2 (150k w /r in ) * de-glitch & modulation logic * apa2010b : 150k w 150/125k w * 150/125k w *
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 . 1 - m a r . , 2 0 1 1 w w w . a n p e c . c o m . t w 1 1 a p a 2 0 1 0 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 (wlcsp1.5x1.5-9a) single-ended input mode (wlcsp1.5x1.5-9a) apa2010/2010a pvdd (b2) 4 w v dd vdd (b1) von (a3) vop (c3) pgnd (b3) gnd (a2) inn (c1) inp (a1) sd (c2) 150k w 150k w 0.1 m f 0.1 m f 0.1 m f 10 m f negative input signal positive input signal shutdown signal 0.1 m f apa2010/2010a pvdd (b2) 4 w v dd vdd (b1) von (a3) vop (c3) pgnd (b3) gnd (a2) inn (c1) inp (a1) sd (c2) 150k w 150k w 0.1 m f 0.1 m f 10 m f singal-ended signal shutdown signal r inn c inn - r inp c inp + gnd r inn c inn - c inn + r inp gnd gnd
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 . 1 - m a r . , 2 0 1 1 w w w . a n p e c . c o m . t w 1 2 a p a 2 0 1 0 b a p p l i c a t i o n i n f o r m a t i o n f i g u r e 1 . t h e c l a s s - d p o w e r a m p l i f i e r 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 ) f u l l y d i f f e r e n t i a l a m p l i f i e r t h e apa2010b i s a f u l l y d i s t i n c t i v e a m p l i f i e r w i t h d i f f e r e n - t i a l i n p u t s a n d o u t p u t s . c o m p a r e w i t h t h e t r a d i t i o n a l a m p l i f i e r s , t h e f u l l y d i f f e r e n t i a l a m p l i f i e r h a s s o m e a d v a n t a g e s . f i r s t l y , t h e r e i s n o n e e d f o r t h e i n p u t c o u - p l i n g c a p a c i t o r s b e c a u s e t h e c o m m o n - m o d e f e e d b a c k w i l l c o m p e n s a t e t h e i n p u t b i a s . t h e i n p u t s c a n b e b i a s e d f r o m 0 . 5 v t o v d d - 0 . 5 v , a n d t h e o u t p u t s s t i l l b e b i a s e d a t m i d - s u p p l y o f a p a 2 0 1 0 b . i f t h e i n p u t s a r e b i a s e d o u t o f t h e i n p u t r a n g e , t h e c o u p l i n g c a p a c i t o r s a r e r e q u i r e d . s e c o n d l y , t h e r e i s n o n e e d f o r t h e m i d - s u p p l y c a p a c i t o r ( c b ) e i t h e r b e c a u s e a n y s h i f t o f t h e m i d - s u p p l y o f a p a 2 0 1 0 b w i l l h a v e t h e s a m e a f f e c t i o n o n b o t h p o s i t i v e & n e g a t i v e c h a n n e l , a n d w i l l c a n c e l a t t h e d i f f e r e n t i a l o u t p u t s . t h i r d l y , t h e f u l l y d i f f e r e n t i a l a m p l i f i e r w i l l c a n c e l t h e g s m r f t r a n s m i t t e r ? s s i g n a l ( 2 1 7 h z ) . c l a s s - d o p e r a t i o n vop v out (vop-von) v out (vop-von) i out i out output = 0v output > 0v v out (vop-von) i out von vop von vop von output < 0v s q u a r e w a v e i n t o t h e s p e a k e r a p p l y i n g 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 i n g o u t t h e a i r g a p a n d d e - f a c i n g 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 i f 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 2 5 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 a n i s s u e 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 . i n p u t r e s i s t a n c e , r i n t h e g a i n o f t h e apa2010b h a s b e e n 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 n ) . (1) r ) 125k (or 2x150k gain(av) in 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 n 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 i n g 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 a s 2 v / v o r l o w e r f o r apa2010b ? s o p t i m a l p e r f o r m a n c e . i n p u t c a p a c i t o r , c i n 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 n , 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 n a n d t h e the apa2010b modulation scheme is shown in figure 1. the outputs vop and von are in phase with each other when no input signals. when output > 0v, the duty cycle of vop is greater than 50% and von is less than 50%; on the contrary, when output <0v, the duty cycle of vop is less than 50% and von is greater than 50%. this method reduces the switching current across the load and the i 2 r losses in the load which can improve the amplifier?s efficiency. this modulation scheme has very short pulses across the load which results in the small ripple current and very little loss on the load. meanwhile, the lc filter can be eliminated in most applications. adding the lc filter can increase the efficiency by filtering the ripple current.
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 . 1 - m a r . , 2 0 1 1 w w w . a n p e c . c o m . t w 1 3 a p a 2 0 1 0 b 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 . ) i n p u t c a p a c i t o r , c i ( c o n t . ) t h e v a l u e o f c i n 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 . f o r e x a m p l e , w h e n r i n i s 1 5 0 k w 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 a r e d o w n t o 2 0 h z . t h e 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 : m i n i m u m i n p u t i m p e d a n c e r i n f r o 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 a r e 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 : (2) c r 2 1 f in in ) c(highpass p = (3) f r 2 1 c c in in p = w h e n i n p u t r e s i s t a n c e i s c o n s i d e r e d , t h e c i n i s 0 . 0 5 m f . t h e r e f o e , a v a l u e i n t h e r a n g e o f 0 . 0 6 8 m f t o 0 . 1 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 n + r f , c i n ) 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 s ? i n p u t s a r e 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 . o u t p u t c a p a c i t o r , c o i f t h e u s e r w a n t s t o a d d c a p a c i t o r a t o u t p u t w i t h o u t f e r r i t e b e a d a n d i n d u c t o r , p l e a s e n o t e t h e o u t p u t c a p a c i t o r s h o u l d n o t b e g r e a t e r t h a n 1 n f ( v d d = 4 . 2 v ) . t h e h i g h v a l u e o f o u t - p u t c a p a c i t o r m a y b e t r i g g e r t h e o c p ( o v e r - c u r r e n t p r o t e c t i o n ) o f apa2010b . p o w e r s u p p l y d e c o u p l i n g , c s t h e apa2010b 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 + n ) 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 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 , i s 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 t h e b e s t o p e r a t i o n . 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 i s 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 . s h u t d o w n f u n c t i o n 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 apa2010b 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 apa2010b . t h e t r i g g e r p o i n t b e t w e e n 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 0 . 4 v d d . i t s u g g e s t s t o s w i t c h t o e i t h e r g r o u n d o r 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 , a n d t h e n t h e apa2010b i s i n s h u t d o w n m o d e . i n n o r m a l o p e r a t i n g , apa2010b ? s s d p i n s h o u l d b e p u l l e d 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 . o u t p u t l c f i l t e r i f t h e t r a c e s f r o m t h e apa2010b t o s p e a k e r a r e s h o r t , t h e apa2010b d o e s 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 i s 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 2 i s t h e s a m p l e f o r a d d i n g 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 s w h e n 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 2 . f e r r i t e b e a d o u t p u t f i l t e r von vop 4 w 1n f 1n f ferrite bead ferrite bead
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 . 1 - m a r . , 2 0 1 1 w w w . a n p e c . c o m . t w 1 4 a p a 2 0 1 0 b o u t p u t l c f i l t e r ( c o n t . ) 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 . ) f i g u r e 3 ? 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 i s f c m i x i n g t w o s i n g l e - e n d e d i n p u t s i g n a l s r 1 inp inn r 2 r p c 1 c 2 c p f i g u r e 4 . m i x i n g t w o s i n g l e - e n d e d i n p u t s i g n a l s f o r m i x i n g t w o s i n g l e - e n d e d ( s e ) i n p u t s i g n a l s , p l e a s e r e f e r t o f i g u r e 4 . t h e g a i n s o f e a c h i n p u t c a n b e s e t d i f f e r e n c e : t h e c o r n e r f r e q u e n c y o f e a c h i n p u t h i g h - p a s s - f i l t e r a l s o c a n b e s e t b y r 1 & c 1 , a n d r 2 & c 2 . t h e n o n - i n v e r t i n g i n p u t ? s r e s i s t o r ( r p ) a n d c a p a c i t o r ( c p ) n e e d t o m a t c h t h e i m p e d a n c e s o f i n v e r t i n p u t s . l a y o u t r e c o m m e n d a t i o n 9 x f 0.275mm 0 . 5 m m 0.5mm f i g u r e 5 . w l c s p - 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 3 i s a n e x a m p l e f o r a d d i n g t h e l c f i l t e r . i t ? s r e c o m - m e n d e d 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 w h e n t h e t r a c e f r o 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 . f i g u r e 3 . l c o u t p u t f i l t e r von vop 4 w 1 m f 1 m f 47 m h 47m h (4) lc 2 1 f c(lowpass) p = (5) r ) 125k (or 150k 2 (1) a 1 v w w = (6) r ) 125k (or 150k 2 (2) a 2 v w w = (7) c c c // c c 2 1 2 1 p + = = (8) r r r r //r r r 2 1 2 1 2 1 p + = = 1. all components should be placed close to the apa2010b. for example, the input resistor (r in ) should be close to apa2010b ?s input pins to avoid causing noise coupling to apa2010b ?s high impedance inputs; the decoupling capacitor (c s ) should be placed by the apa2010b ?s power pin to decouple the power rail noise. 2. the output traces should be short, wide (>50mil), and symmetric. 3. the input trace should be short and symmetric. 4. the power trace width should greater than 50mil.
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 . 1 - m a r . , 2 0 1 1 w w w . a n p e c . c o m . t w 1 5 a p a 2 0 1 0 b p a c k a g e i n f o r m a t i o n wlcsp1.5x1.5-9a pin 1 d e a1 a2 a e e b s y m b o l min. max. 0.67 0.20 0.29 0.31 1.42 1.50 0.24 a a1 b d e e millimeters a2 0.33 0.43 0.50 bsc wlcsp1.5x1.5-9a 0.020 bsc min. max. inches 0.026 0.008 0.013 0.017 0.011 0.012 0.056 0.059 0.009 0.53 0.021 1.42 1.50 0.056 0.059
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 . 1 - m a r . , 2 0 1 1 w w w . a n p e c . c o m . t w 1 6 a p a 2 0 1 0 b 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 wlcsp 1.5x1.5 - 9 a 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 (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 d e v i c e s p e r u n i t package type unit quantity wlcsp 1.5x1.5 - 9 a tape & reel 3000 h t1 a d a e 1 a b w f t p0 od0 b a0 p2 k0 b 0 section b-b section a-a od1 p1
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 . 1 - m a r . , 2 0 1 1 w w w . a n p e c . c o m . t w 1 7 a p a 2 0 1 0 b t a p i n g d i r c e t i o n i n f o r m a t i o n wlcsp1.5x1.5-9a c l a s s i f i c a t i o n p r o f i l e user direction of feed
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 . 1 - m a r . , 2 0 1 1 w w w . a n p e c . c o m . t w 1 8 a p a 2 0 1 0 b 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 r e f l o w p r o f i l e s 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 . ) 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 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 r e l i a b i l i t y t e s t p r o g r a m 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
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 . 1 - m a r . , 2 0 1 1 w w w . a n p e c . c o m . t w 1 9 a p a 2 0 1 0 b 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 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

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