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1 . 1 w m o n o l o w - v o l t a g e a u d i o p o w e r a m p l i f i e r 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 . 2 - a p r , 2 0 1 2 a p a 0 7 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 . t h e a p a 0 7 1 3 i s a b r i d g e d - t i e d l o a d ( b t l ) a u d i o p o w e r a m p l i f i e r d e v e l o p e d e s p e c i a l l y f o r l o w - v o l t a g e a p p l i c a - t i o n s w h e r e i n t e r n a l s p e a k e r s o p e r a t i o n i s r e q u i r e d . o p e r a t i n g w i t h a 5 v s u p p l y , t h e a p a 0 7 1 3 c a n d e l i v e r 1 . 1 w o f c o n t i n u o u s p o w e r i n t o a b t l 8 w l o a d a t 1 0 % t h d + n t h r o u g h o u t v o i c e b a n d f r e q u e n c i e s . a l t h o u g h t h i s d e v i c e i s c h a r a c t e r i z e d o u t t o 2 0 k h z , i t s o p e r a t i o n i s o p t i m i z e d f o r n a r r o w b a n d a p p l i c a t i o n s s u c h a s w i r e l e s s c o m m u n i c a t i o n s . t h e b t l c o n f i g u r a t i o n e l i m i n a t e s t h e n e e d f o r e x t e r n a l c o u p l i n g c a p a c i t o r s o n t h e o u t p u t i n m o s t a p p l i c a t i o n s , w h i c h i s p a r t i c u l a r l y i m p o r t a n t f o r s m a l l b a t t e r y - p o w e r e d e q u i p m e n t . t h i s d e v i c e f e a t u r e s a s h u t - d o w n m o d e f o r p o w e r - s e n s i t i v e a p p l i c a t i o n s w i t h s p e - c i a l d e p o p c i r c u i t r y t o e l i m i n a t e s p e a k e r n o i s e w h e n e x i t - i n g s h u t d o w n m o d e . t h e a p a 0 7 1 3 i s a v a i l a b l e i n 8 - p i n s o p . o p e r a t i n g v o l t a g e : 2 . 6 v - 5 . 5 v a p a 0 7 1 3 c o m p a t i b l e w i t h t p a 7 5 1 s u p p l y c u r r e n t ? i d d = 1 . 3 m a a t v d d = 5 v , b t l m o d e ? i d d = 0 . 9 m a a t v d d = 3 . 3 v , b t l m o d e l o w s h u t d o w n c u r r e n t ? i d d = 0 . 1 m a l o w d i s t o r t i o n ? 6 3 0 m w , a t v d d = 5 v , b t l , r l = 8 w t h d + n = 0 . 1 5 % ? 2 8 0 m w , a t v d d = 3 . 3 v , b t l , r l = 8 w t h d + n = 0 . 1 5 % o u t p u t p o w e r a t 1 % t h d + n ? 9 0 0 m w , a t v d d = 5 v , b t l , r l = 8 w ? 4 0 0 m w , a t v d d = 3 . 3 v , b t l , r l = 8 w a t 1 0 % t h d + n ? 1 . 1 w a t v d d = 5 v , b t l , r l = 8 w ? 4 8 0 m w a t v d d = 3 . 3 v , b t l , r l = 8 w d e p o p c i r c u i t r y i n t e g r a t e d t h e r m a l s h u t d o w n p r o t e c t i o n a n d o v e r c u r r e n t p r o t e c t i o n c i r c u i t r y h i g h s u p p l y v o l t a g e r i p p l e r e j e c t i o n s u r f a c e - m o u n t p a c k a g i n g ? 8 p i n s o p l e a d f r e e a v a i l a b l e ( r o h s c o m p l i a n t ) 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 p d a s d i g i t a l c a m e r a s p o r t a b l e e l e c t r o n i c d e v i c e s 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). apa 0713 handling code temperature range package code package code k : sop - 8 temperature range i : - 40 to 85 o c handling code tr : tape & reel assembly material g : halogen and lead free device xxxxx - date code assembly material apa 0713 k : apa 0713 xxxxx
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 . 2 - a p r . , 2 0 1 2 a p a 0 7 1 3 w w w . a n p e c . c o m . t w 2 symbol parameter rating unit v dd supply voltage - 0.3 to 6 v v in input voltage range, shutdown, se/btl - 0.3 to v dd +0.3 v t a operating ambient temperature range - 40 to 85 c t j maximum junction temperature internally limited* 1 c t stg storage temperatur e range - 65 to +150 c t s dr lead soldering temperature, 10 seconds 260 c p d power dissipation internally limited w symbol parameter test conditions min. max. unit v dd supply voltage 2.6 5.5 v v ih high - level voltage shutdown 2.2 v v il low - level voltage shutdown 0.4 v 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 t h e r m a l c h a r a c t e r i s t i c s symbol parameter value unit r thja thermal resistance from junction to ambient in free air sop - 8 (note 2) 200 c/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 . n o t e 2 : a p a 0 7 1 3 s t a r t s i t s i n t e r n a l t h e r m a l s h u t d o w n p r o t e c t i o n w h e n j u n c t i o n t e m p e r a t u r e r a m p s u p t o 1 7 0 c . a b s o l u t e m a x i m u m r a t i n g s ( o v e r o p e r a t i n g f r e e - a i r t e m p e r a t u r e r a n g e u n l e s s o t h e r w i s e n o t e d . ) n o t e 2 : 3 . 4 2 i n 2 p r i n t e d c i r c u i t b o a r d w i t h 2 0 z t r a c e a n d c o p p e r . s o p - 8 p i n c o n f i g u r a t i o n shutdown 1 bypass 2 in + 3 in - 4 7 gnd 5 vo + 6 vdd 8 vo -
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 . 2 - a p r . , 2 0 1 2 a p a 0 7 1 3 w w w . a n p e c . c o m . t w 3 apa071 3 symbol parameter test conditions min. typ. max. unit v os output o ffset v oltage r l = 8 w , r f = 10k w 20 mv i dd supply c urrent btl mode, r f = 10k w 0.9 1.8 m a i dd(sd) supply c urrent, s hutdown m ode r f = 10k w 0.1 2 m a |ih| shutdown, v i = v d d 1 m a |il| shutdown, v i = 0v 1 m a operating characteristic, v dd = 3.3v, t a = 25 c , rl = 8 w thd+n = 1 %, btl mode, r l = 8 w 400 p o output p ower ( note 3 ) thd+n = 1 %, btl mode, r l = 4 w 600 mw thd+n total h armonic d istortion plus n oise ( note 1 ) p o = 280 mw, btl mode, r l = 8 w 0. 15 % bom maximum output p ower b andwidth gain = 2, thd+n = 2% 20 khz b1 unity - g ain b andwidth open loop 2 mhz psrr power s upply r ejection r atio (note1) c b = 1 m f, btl mode , r l = 8 w 74 db vn noise o utput v oltage gain = 1, c b = 0.1 m f 28 m v(rms) t wu wake - up time c b = 1 m f 380 ms 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 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 a t s p e c i f i e d f r e e - a i r t e m p e r a t u r e v d d = 3 . 3 v , t a = 2 5 c ( u n l e s s o t h e r w i s e n o t e d ) v d d = 5 v , t a = 2 5 c ( u n l e s s o t h e r w i s e n o t e d ) apa071 3 symbol parameter test conditions min. typ. max. unit v os output o ffset v oltage r l = 8 w , r f = 10k w 20 mv btl mode, r f = 10 k w 1.3 2.6 i dd supply c urrent se mode, r f = 10 k w 0.75 1.5 m a i dd(sd) supply c urrent, s hutdown m ode r f = 10 k w 0.1 2 m a |ih| shutdown, v i = v dd 1 m a |il| shutdown, v i = 0v 1 m a operating characteristic, v dd = 5 v, t a = 25 c , r l = 8 w thd+n = 1 %, btl mode, r l = 8 w 900 mw p o output p ower ( note 3 ) thd+n = 1 %, btl mode, r l = 4 w 1.5 w thd+n total h armonic d istortion plus n oise ( note 3 ) p o = 630 mw, btl mode, r l = 8 w 0. 15 % bom maximum output p ower b andwidth gain = 2, thd+n = 2% 20 khz b1 unity - g ain b andwidth open loop 2 mhz psrr power s upply r ejection r atio (note 3 ) c b = 1 m f, btl mode , r l = 8 w 74 db vn noise o utput v oltage gain = 1, c b = 0.1 m f 28 m v(rms) twu wake - up time c b = 1 m f 400 ms n o t e 3 : o u t p u t p o w e r i s m e a s u r e d a t t h e o u t p u t t e r m i n a l s o f d e v i c e a t f = 1 k h z .
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 . 2 - a p r . , 2 0 1 2 a p a 0 7 1 3 w w w . a n p e c . c o m . t w 4 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 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 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 s u p p l y v o l t a g e ( v ) s u p p l y v o l t a g e ( v ) output power (mw) shutdown cuuret ( m a) p s r r v s . f r e q u e n c y f r e q u e n c y ( h z ) 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 s u p p l y v o l t a g e ( v ) supply cuuret ( m a) ripple rejection ration (db) -100 +0 -80 -60 -40 -20 20 20k 100 1k 10k t r l =8 w c b =1 m f btl v dd =3.3v v dd =5v 0.08 0.09 0.1 0.11 0.12 2.5 3 3.5 4 4.5 5 5.5 r f =10k w t h d + n v s . f r e q u e n c y f r e q u e n c y ( h z ) 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 thd+n (%) ouput power (mw) l o a d r e s i s t a n c e ( w ) 0 100 200 300 400 500 600 700 800 900 1000 8 16 24 32 40 48 56 64 thd+n=1% f in =1khz btl v dd =5v v dd =3.3v 0.01 10 0.1 1 20 20k 100 1k 10k v dd =3.3v p o =250mw r l =8 w btl a v =-20v/v a v =-10v/v a v =-2v/v 0 200 400 600 800 1000 1200 1400 1600 2.5 3 3.5 4 4.5 5 5.5 r f =10k w btl 0 200 400 600 800 1000 1200 2.5 3 3.5 4 4.5 5 5.5 thd+n=1% f in =1khz btl r l =8 w r l =32 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 . 2 - a p r . , 2 0 1 2 a p a 0 7 1 3 w w w . a n p e c . c o m . t w 5 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 . o u t p u t p o w e r f r e q u e n c y ( h z ) o u t p u t p o w e r ( w ) thd+n (%) thd+n (%) 0.01 10 0.1 1 20 20k 100 1k 10k v dd =3.3v r l =8 w a v =-2v/v btl p o =50mw p o =125mw p o =250mw 0.01 10 0.1 1 0 0.6 0.1 0.2 0.3 0.4 0.5 v dd =3.3v f in =1khz a v =-2v/v btl r l =8 w t h d + n v s . f r e q u e n c y f r e q u e n c y ( h z ) t h d + n v s . o u t p u t p o w e r o u t p u t p o w e r ( w ) t h d + n v s . o u t p u t p o w e r t h d + n v s . f r e q u e n c y thd+n (%) thd+n (%) f r e q u e n c y ( h z ) thd+n (%) thd+n (%) o u t p u t p o w e r ( w ) 0.01 10 0.1 1 20 20k 100 1k 10k v dd =5v r l =8 w a v =-2v/v btl p o =50mw p o =700mw p o =350w 0.01 10 0.1 1 0.01 1 0.1 v dd =3.3v r l =8 w c b =1 m f a v =-2v/v btl f in =10khz f in =20khz f in =1khz f in =20hz 0.01 10 0.1 1 20 20k 100 1k 10k v dd =5v p o =700mw r l =8 w btl a v =-2v/v a v =-10v/v a v =-20v/v 0.01 10 0.1 1 0.1 0.3 0.5 0.7 0.9 1.1 1.2 v dd =5v f in =1khz a v =-2v/v btl r l =8 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 . 2 - a p r . , 2 0 1 2 a p a 0 7 1 3 w w w . a n p e c . c o m . t w 6 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 . o u t p u t p o w e r o u t p u t p o w e r ( w ) thd+n (%) 0.01 10 0.1 1 0.01 1 0.1 v dd =5v r l =8 w c b =1 m f a v =2v/v btl f in =10khz f in =20khz f in =1khz f in =20hz t h d + n v s . f r e q u e n c y thd+n (%) f r e q u e n c y ( h z ) 0.001 10 0.01 0.1 1 20 20k 100 1k 10k r v dd =3.3v r l =32 w a v =-1v/v btl p o =30mw p o =15mw p o =10mw c l o s e l o o p g a i n a n d p h a s e v s . f r e q u e n c y f r e q u e n c y ( h z ) c l o s e l o o p g a i n a n d p h a s e v s . f r e q u e n c y close loop gain (db) close loop gain (db) phase( ) phase( ) 10 100k 100 1k 10k +20 +60 +100 +140 +180 +220 -0 +28 +4 +8 +12 +16 +20 +24 v dd =5v r l =8 w a v =-4v/v p o =700mw btl gain phase n o i s e f l o o r v s . f r q u e n c y f r e q u e n c y ( h z ) noise floor ( m v rms ) 1 100 10 20 20k 100 1k 10k v dd =3.3v bw=22hz to 22khz a v =-1v/v r l =8 w , btl n o i s e f l o o r v s . f r q u e n c y noise floor ( m v rms ) f r e q u e n c y ( h z ) 1 100 10 20 20k 100 1k 10k v dd =5v bw=22hz to 22khz a v =-1v/v r l =8 w , btl +20 +60 +100 +140 +180 +220 -0 +28 +4 +8 +12 +16 +20 +24 10 100k 100 1k 10k v dd =3.3v r l =8 w a v =-4v/v p o =250mw btl gain phase
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 . 2 - a p r . , 2 0 1 2 a p a 0 7 1 3 w w w . a n p e c . c o m . t w 7 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 o w e r d i s s i p a t i o n v s . o u t p u t p o w e r o u t p u t p o w e r ( m w ) p o w e r d i s s i p a t i o n v s . o u t p u t p o w e r power dissipation (mw) power dissipation (mw) o u t p u t p o w e r ( m w ) 0 50 100 150 200 250 300 350 0 200 400 600 r l =8 w r l =32 w v dd =3.3v btl 0 100 200 300 400 500 600 700 800 0 200 400 600 800 1000 v dd =5v btl r l =8 w r l =32 w t h d + n v s . f r e q u e n c y f r e q u e n c y ( h z ) t h d + n v s . o u t p u t p o w e r thd+n (%) thd+n (%) o u t p u t p o w e r ( w ) 0 0 . 4 0 . 8 1 . 6 2 0 . 1 10 1 2 0 . 2 v = 5 v v = 3 . 3 v r l = 4 w f = 1 khz gain = 6 db btl 1 . 2 20 20 k 100 1 k 10 k 0 . 1 0 . 3 1 0 . 06 po = 600 mw v = 3 . 3 v r l = 4 w gain = 6 db btl po = 60 mw po = 300 mw t h d + n v s . f r e q u e n c y thd+n (%) f r e q u e n c y ( h z ) 20 20 k 100 1 k 10 k 0 . 1 0 . 3 1 0 . 06 v = 5 v r l = 4 w gain = 6 db btl po = 1 . 3 w po = 0 . 6 w po = 0 . 15 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 . 2 - a p r . , 2 0 1 2 a p a 0 7 1 3 w w w . a n p e c . c o m . t w 8 p i n d e s c r i p t i o n s pin name no i/o description shutdown 1 i shutdown mode control signal input, place entire ic in shutdown mode when held high. bypass 2 i bypass pin in+ 3 i in+ is the non - inverting input. in+ is typically tied to the bypass terminal. in - 4 i in - is the inverting input. in - is typically used as the audio input terminal. vo+ 5 o vo+ is the positive btl output. vdd 6 supply voltage input pin. gnd 7 ground connection for circuitry. vo - 8 o vo - is the negative btl output. b l o c k d i a g r a m + _ + _ c b c i r i v dd c s v dd / 2 bypass 1 2 3 4 5 6 7 8 vo + vo - gnd in - bias control r f audio input v dd apa 0713 from system control in + shutdown
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 . 2 - a p r . , 2 0 1 2 a p a 0 7 1 3 w w w . a n p e c . c o m . t w 9 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 s f o r d i f f e r e n t i a l i n p u t a p p l i c a t i o n f o r s i n g l e - e n d e d i n p u t a p p l i c a t i o n + _ + _ c b 1 m f c i 0 . 47 m f r i from system control v dd c s v dd / 2 bypass shutdown in + 1 2 3 4 5 6 7 8 vo + vo - gnd in - bias control r f 10 k w audio input v dd 1 m f 10 k w + _ + _ c b 1 m f c i 0 . 47 m f r i from system control v dd c s v dd / 2 bypass shutdown in + 1 2 3 4 5 6 7 8 vo + vo - gnd in - bias control r f 10 k w audio input - v dd 1 m f audio input + c i 0 . 47 m f r i r f 10 k w 10 k w 10 k 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 . 2 - a p r . , 2 0 1 2 a p a 0 7 1 3 w w w . a n p e c . c o m . t w 1 0 a p p l i c a t i o n i n f o r m a t i o n b t l o p e r a t i o n f i g u r e 1 : a p a 0 7 1 3 p o w e r a m p l i f i e r i n t e r n a l c o n f i g u r a t i o n t h e p o w e r a m p l i f i e r o p 1 g a i n i s s e t b y e x t e r n a l g a i n s e t t i n g , w h i l e t h e s e c o n d a m p l i f i e r o p 2 i s i n t e r n a l l y f i x e d i n a u n i t y - g a i n , i n v e r t i n g c o n f i g u r a t i o n . f i g u r e 1 s h o w s t h a t t h e o u t p u t o f o p 1 i s c o n n e c t e d t o t h e i n p u t t o o p 2 , w h i c h r e s u l t s i n t h e o u t p u t s i g n a l s o f w i t h b o t h a m p l i f i e r s w i t h i d e n t i c a l i n m a g n i t u d e , b u t o u t o f p h a s e 1 8 0 . c o n s e q u e n t l y , t h e d i f f e r e n t i a l g a i n f o r e a c h c h a n - n e l i s 2 x ( g a i n o f s e m o d e ) . b y d r i v i n g t h e l o a d d i f f e r e n t i a l l y t h r o u g h o u t p u t s v o + a n d v o - , a n a m p l i f i e r c o n f i g u r a t i o n c o m m o n l y r e f e r r e d t o a s b r i d g e d m o d e i s e s t a b l i s h e d . t h e b t l m o d e o p e r a t i o n i s d i f f e r e n t f r o m t h e c l a s s i c a l s i n g l e - e n d e d s e a m p l i f i e r c o n - f i g u r a t i o n w h e r e o n e s i d e o f i t s l o a d i s c o n n e c t e d t o g r o u n d . t h e b t l a m p l i f i e r d e s i g n h a s a f e w d i s t i n c t a d v a n t a g e s o v e r t h e s e c o n f i g u r a t i o n , a s i t p r o v i d e s d i f f e r e n t i a l d r i v e t o t h e l o a d , t h u s d o u b l i n g t h e o u t p u t s w i n g f o r a s p e c i f i e d s u p p l y v o l t a g e . f o u r t i m e s t h e o u t p u t p o w e r i s p o s s i b l e a s c o m p a r e d w i t h a s e a m p l i f i e r u n d e r t h e s a m e c o n d i t i o n s . a b t l c o n f i g u r a t i o n , s u c h a s t h e o n e u s e d i n t h e a p a 0 7 1 3 , a l s o c r e a t e s a s e c o n d a d v a n t a g e o v e r s e a m p l i f i e r s . s i n c e t h e d i f f e r e n t i a l o u t p u t s , v o + a n d v o - , a r e b i a s e d a t h a l f - s u p p l y , n o n e e d d c v o l t a g e e x i s t s a c r o s s t h e l o a d . t h i s e l i m i n a t e s t h e n e e d f o r a n o u t p u t c o u p l i n g c a p a c i t o r w h i c h i s r e q u i r e d i n a s i n g l e s u p p l y , s e c o n f i g u r a t i o n . i n p u t c a p a c i t o r , 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 m i n i m u m i n p u t i m p e d a n c e r i 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 : ( 1 ) t h e v a l u e o f c i i s i m p o r t a n t t o c o n s i d e r a s 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 . c o n - s i d e r t h e e x a m p l e w h e r e r i i s 1 0 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 d o w n t o 4 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 f o l l o w e d : ( 2 ) c o n s i d e r i n p u t r e s i s t a n c e v a r i a t i o n , t h e c i i s 0 . 0 4 m f s o o n e w o u l d l i k e l y c h o o s e a v a l u e i n t h e r a n g e o f 0 . 1 m f t o 1 . 0 m f . 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 a s t h e d c l e v e l t h e r e i s h e l d a t v d d / 2 , w h i c h i s l i k e l y h i g h e r t h a n t h e s o u r c e d c l e v e l . 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 . e f f e c t i v e b y p a s s c a p a c i t o r , c b y p a s s a s o t h e r p o w e r a m p l i f i e r s , p r o p e r s u p p l y b y p a s s i n g i s c r i t i c a l f o r l o w n o i s e p e r f o r m a n c e a n d h i g h p o w e r s u p p l y r e j e c t i o n . t h e c a p a c i t o r s l o c a t e d o n t h e b y p a s s a n d p o w e r s u p p l y p i n s s h o u l d b e a s c l o s e t o t h e d e v i c e a s p o s s i b l e . t h e e f f e c t o f a l a r g e r h a l f s u p p l y b y p a s s c a p a c i t o r w i l l i m p r o v e c i i f r 2 1 c p = i i c c r 2 1 ) highpass ( f p = vbias vo + vo - rl op1 op2
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 . 2 - a p r . , 2 0 1 2 a p a 0 7 1 3 w w w . a n p e c . c o m . t w 1 1 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 . ) p s r r d u e t o i n c r e a s e d h a l f - s u p p l y s t a b i l i t y . t y p i c a l a p - p l i c a t i o n e m p l o y s a 5 v r e g u l a t o r w i t h 1 . 0 m f a n d a 0 . 1 m f b y p a s s a s s u p p l y f i l t e r i n g . t h i s d o e s n o t e l i m i n a t e t h e n e e d f o r b y p a s s i n g t h e s u p p l y n o d e s o f t h e a p a 0 7 1 3 . t h e s e l e c t i o n o f b y p a s s c a p a c i t o r s , e s p e c i a l l y c b y p a s s , t h u s d e p e n d s u p o n d e s i r e d p s r r r e q u i r e m e n t s , c l i c k - a n d - p o p p e r f o r m a n c e . e f f e c t i v e b y p a s s c a p a c i t o r , c b y p a s s ( c o n t . ) t o a v o i d s t a r t - u p p o p n o i s e o c c u r r e d , t h e b y p a s s v o l t - a g e s h o u l d r i s e s l o w e r t h a n t h e i n p u t b i a s v o l t a g e a n d t h e r e l a t i o n s h i p s h o w n i n e q u a t i o n ( 4 ) s h o u l d b e m a i n t a i n e d . < < ( 3 ) i f i c ) r (r 1 + t h e b y p a s s c a p a c i t o r i s f e d f r o m a 8 0 k w r e s i s t o r i n s i d e t h e a m p l i f i e r . b y p a s s c a p a c i t o r , c b y p a s s , v a l u e s o f 0 . 1 m f t o 2 . 2 m f c e r a m i c o r t a n t a l u m l o w - e s r c a p a c i t o r s a r e r e c o m m e n d e d f o r t h e b e s t t h d + n a n d n o i s e p e r f o r m a n c e . t h e b y p a s s c a p a c i t a n c e a l s o e f f e c t s t o t h e s t a r t u p t i m e . i t i s 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 : ) k 80 c ( 5 t bypass startup w = ( 4 ) 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 a p a 0 7 1 3 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 c a u s i n g 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 ? s v d d l e a d , w h i c h i s f o r t h e b e s t p e r f o r m a n c e . 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 . o p t i m i z i n g d e p o p c i r c u i t r y c i r c u i t r y h a s b e e n i n c l u d e d i n t h e a p a 0 7 1 3 t o m i n i - m i z e t h e a m o u n t o f p o p p i n g n o i s e a t p o w e r - u p a n d w h e n c o m i n g o u t o f s h u t d o w n m o d e . p o p p i n g o c c u r s w h e n - e v e r a v o l t a g e s t e p i s a p p l i e d t o t h e s p e a k e r . i n o r d e r t o e l i m i n a t e c l i c k - a n d - p o p , a l l c a p a c i t o r s m u s t b e f u l l y d i s - c h a r g e d b e f o r e t u r n - o n . r a p i d o n / o f f s w i t c h i n g o f t h e d e - v i c e o r t h e s h u t d o w n f u n c t i o n w i l l c a u s e t h e c l i c k - a n d - p o p c i r c u i t r y . t h e v a l u e o f c i w i l l a l s o a f f e c t t u r n - o n p o p s ( r e f e r t o e f f e c t i v e b y p a s s c a p a c i t a n c e ) . t h e b y p a s s v o l t - a g e r i s e u p s h o u l d b e s l o w e r t h a n i n p u t b i a s v o l t a g e . a l t h o u g h t h e b y p a s s p i n c u r r e n t s o u r c e c a n n o t b e m o d i f i e d , t h e s i z e o f c b y p a s s c a n b e c h a n g e d t o a l t e r t h e d e v i c e t u r n - o n t i m e a n d t h e a m o u n t o f c l i c k - a n d - p o p . b y i n c r e a s i n g t h e v a l u e o f c b y p a s s , t u r n - o n p o p c a n b e r e d u c e d . h o w e v e r , t h e t r a d e o f f f o r u s i n g a l a r g e r b y p a s s c a p a c i t o r i s t o i n c r e a s e t h e t u r n - o n t i m e f o r t h i s d e v i c e . t h e r e i s a l i n e a r r e l a t i o n s h i p b e t w e e n t h e s i z e o f c b y p a s s a n d t h e t u r n - o n t i m e . i n t h e m o s t c a s e s , c h o o s i n g a s m a l l v a l u e o f c i i n t h e r a n g e o f 0 . 3 3 m f t o 1 m f , c b y p a s s b e i n g e q u a l t o 1 m f s h o u l d p r o d u c e a v i r t u a l l y c l i c k l e s s a n d p o p l e s s t u r n - o n . a h i g h g a i n a m p l i f i e r i n t e n s i f i e s t h e p r o b l e m a s t h e s m a l l d e l t a i n v o l t a g e i s m u l t i p l i e d b y t h e g a i n . h e n c e , i t i s a d - v a n t a g e o u s t o u s e l o w - g a i n c o n f i g u r a t i o n s . 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 i n g , t h e a p a 0 7 1 3 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 a l o g i c l o w o n t h e s h u t d o w n p i n f o r a p a 0 7 1 3 . 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 b e t t e r t o s w i t c h b e t w e e n 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 h u t d o w n p i n t o h i g h 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 u r r e n t s t a t e , i d d f o r a p a 0 7 1 3 . a p a 0 7 1 3 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 o n , a p a 0 7 1 3 ? s s h u t d o w n p i n s h o u l d b e p u l l e d t o l o w l e v e l t o k e e p t h e i c w 80k c 1 bypass
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 . 2 - a p r . , 2 0 1 2 a p a 0 7 1 3 w w w . a n p e c . c o m . t w 1 2 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 . ) s h u t d o w n f u n c t i o n ( c o n t . ) o u t o f t h e s h u t d o w n m o d e . t h e s h u t d o w n 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 . b t l a m p l i f i e r e f f i c i e n c y a n e a s y - t o - u s e e q u a t i o n t o c a l c u l a t e e f f i c i e n c y s t a r t s o u t a s b e i n g e q u a l t o t h e r a t i o o f p o w e r f r o m t h e p o w e r s u p - p l y t o t h e p o w e r d e l i v e r e d t o t h e l o a d . t h e f o l l o w i n g e q u a - t i o n s a r e t h e b a s i s f o r c a l c u l a t i n g a m p l i f i e r e f f i c i e n c y . ( 5 ) ( 6 ) ( 7 ) ( 8 ) where e f f i c i e n c y o f a b t l c o n f i g u r a t i o n : 2 v v p orms = l p p l orms orms o r 2 ) v v ( r v v p = = dd p l p dd l p p sup o 4v v ) r v 2 v ( ) r 2 v v ( p p p = p = l p dd avg , dd dd sup r v 2 v l v p p = = po (w) efficiency (%) v p (v) p d (w) 0.1 25 33.6 1 . 41 0.26 0. 25 47.6 2 . 00 0.29 0 .375 58.3 2 . 45* 0.28 * h i g h p e a k v o l t a g e s c a u s e t h e t h d + n t o i n c r e a s e . t a b l e 1 . e f f i c i e n c y v s . o u t p u t p o w e r i n 3 . 3 v / 8 w b t l s y s t e m s . t a b l e 1 e m p l o y s e q u a t i o n 8 t o c a l c u l a t e e f f i c i e n c i e s f o r t h r e e d i f f e r e n t o u t p u t p o w e r l e v e l s w h e n l o a d i s 8 w . t h e e f f i c i e n c y o f t h e a m p l i f i e r i s q u i t e l o w f o r l o w e r p o w e r l e v e l s a n d r i s e s s h a r p l y a s p o w e r t o t h e l o a d i s i n c r e a s e d p o w e r d i s s i p a t i o n w h e t h e r t h e p o w e r a m p l i f i e r i s o p e r a t e d i n b t l o r s e m o d e s , p o w e r d i s s i p a t i o n i s a m a j o r c o n c e r n . i n e q u a - t i o n 9 s t a t e s t h e m a x i m u m p o w e r d i s s i p a t i o n p o i n t f o r a s e m o d e o p e r a t i n g a t a g i v e n s u p p l y v o l t a g e a n d d r i v i n g a s p e c i f i e d l o a d . l 2 2 dd max , d r 2 v p : e mod se p = ( 9 ) i n b t l m o d e o p e r a t i o n , t h e o u t p u t v o l t a g e s w i n g i s d o u b l e d a s i n s e m o d e . t h u s t h e m a x i m u m p o w e r d i s s i - p a t i o n p o i n t f o r a b t l m o d e o p e r a t i n g a t t h e s a m e g i v e n c o n d i t i o n s i s 4 t i m e s a s i n s e m o d e . l 2 2 dd max , d r 2 v 4 p : e mod btl p = ( 1 0 ) s i n c e t h e a p a 0 7 1 3 i s a m o n o c h a n n e l p o w e r a m p l i f i e r , t h e m a x i m u m i n t e r n a l p o w e r d i s s i p a t i o n i s e q u a l t o t h e b o t h o f e q u a t i o n s d e p e n d i n g o n t h e m o d e o f o p e r a t i o n . t h e p o w e r d i s s i p a t i o n f r o m e q u a t i o n 1 0 , a s s u m i n g a 5 v - p o w e r s u p p l y a n d a n 8 w l o a d , m u s t n o t b e g r e a t e r t h a n t h e p o w e r d i s s i p a t i o n t h a t r e s u l t s f r o m t h e e q u a t i o n 1 1 : ja a max , j max , d t t p q - = ( 1 1 ) r e s u l t i n g i n a n e a r l y f l a t i n t e r n a l p o w e r d i s s i p a t i o n o v e r t h e n o r m a l o p e r a t i n g r a n g e . n o t e t h a t t h e i n t e r n a l d i s s i - p a t i o n a t f u l l o u t p u t p o w e r i s l e s s t h a n i n t h e h a l f p o w e r r a n g e . c a l c u l a t i n g t h e e f f i c i e n c y f o r a s p e c i f i c s y s t e m i s t h e k e y t o p r o p e r p o w e r s u p p l y d e s i g n . f o r a m o n o 9 0 0 m w a u d i o s y s t e m w i t h 8 w l o a d s a n d a 5 v s u p p l y , t h e m a x i m u m d r a w o n t h e p o w e r s u p p l y i s a l m o s t 1 . 5 w . a f i n a l p o i n t t o r e m e m b e r a b o u t l i n e a r a m p l i f i e r s ( e i t h e r s e o r b t l ) i s h o w t o m a n i p u l a t e t h e t e r m s i n t h e e f f i - c i e n c y e q u a t i o n t o u t m o s t a d v a n t a g e w h e n p o s s i b l e . n o t e t h a t i n e q u a t i o n 8 , v d d i s i n t h e d e n o m i n a t o r . t h i s i n d i c a t e s t h a t a s v d d g o e s d o w n , e f f i c i e n c y g o e s u p . i n o t h e r w o r d s , t h e e f f i c i e n c y a n a l y s i s i s u s e d t o c h o o s e t h e c o r r e c t s u p p l y v o l t a g e a n d s p e a k e r i m p e d a n c e f o r t h e a p p l i c a t i o n . sup o p p efficiency =
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 . 2 - a p r . , 2 0 1 2 a p a 0 7 1 3 w w w . a n p e c . c o m . t w 1 3 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 . ) p o w e r d i s s i p a t i o n ( c o n t . ) f o r s o p - 8 p a c k a g e , t h e t h e r m a l r e s i s t a n c e ( q j a ) i s e q u a l t o 2 0 0 o c / w , r e s p e c t i v e l y . s i n c e t h e m a x i m u m j u n c t i o n t e m p e r a t u r e ( t j , m a x ) o f a p a 0 7 1 3 i s 1 7 0 o c a n d t h e a m b i e n t t e m p e r a t u r e ( t a ) i s d e f i n e d b y t h e p o w e r s y s t e m d e s i g n , t h e m a x i m u m p o w e r d i s s i p a t i o n w h i c h t h e i c p a c k a g e i s a b l e t o h a n d l e c a n b e o b t a i n e d f r o m e q u a t i o n 1 1 . o n c e t h e p o w e r d i s s i - p a t i o n i s g r e a t e r t h a n t h e m a x i m u m l i m i t ( p d , m a x ) , e i t h e r t h e s u p p l y v o l t a g e ( v d d ) m u s t b e d e c r e a s e d , t h e l o a d i m - p e d a n c e ( r l ) m u s t b e i n c r e a s e d , o r t h e a m b i e n t t e m - p e r a t u r e s h o u l d b e r e d u c e d .
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 . 2 - a p r . , 2 0 1 2 a p a 0 7 1 3 w w w . a n p e c . c o m . t w 1 4 p a c k a g e i n f o r m a t i o n s o p - 8 l view a 0 . 2 5 seating plane gauge plane note: 1. follow jedec ms-012 aa. 2. dimension ? d ? does not include mold flash, protrusions or gate burrs. mold flash, protrusion or gate burrs shall not exceed 6 mil per side. 3. dimension ? e ? does not include inter-lead flash or protrusions. inter-lead flash and protrusions shall not exceed 10 mil per side. s y m b o l min. max. 1.75 0.10 0.17 0.25 0.25 a a1 c d e e1 e h l millimeters b 0.31 0.51 sop-8 0.25 0.50 0.40 1.27 min. max. inches 0.069 0.004 0.012 0.020 0.007 0.010 0.010 0.020 0.016 0.050 0 0.010 1.27 bsc 0.050 bsc a2 1.25 0.049 0 8 0 8 3.80 5.80 4.80 4.00 6.20 5.00 0.189 0.197 0.228 0.244 0.150 0.157 d e e e 1 see view a c b h x 4 5 a 2 a aaa c nx aaa 0.10 0.004
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 . 2 - a p r . , 2 0 1 2 a p a 0 7 1 3 w w w . a n p e c . c o m . t w 1 5 application a h t1 c d d w e1 f 330.0 ? 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 sop - 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 6.40 ? 0.20 5.20 ? 0.20 2.10 ? 0.20 (mm) d e v i c e s p e r u n i t 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 sop - 8 tape & reel 2500 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
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 . 2 - a p r . , 2 0 1 2 a p a 0 7 1 3 w w w . a n p e c . c o m . t w 1 6 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 c l a s s i f i c a t i o n p r o f i l e s o p - 8 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 . 2 - a p r . , 2 0 1 2 a p a 0 7 1 3 w w w . a n p e c . c o m . t w 1 7 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 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 test item method description solderability jesd - 22, b102 5 sec, 245 c holt jesd - 22, a108 1000 hrs, bias @ tj=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 r e l i a b i l i t y t e s t p r o g r a m
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 . 2 - a p r . , 2 0 1 2 a p a 0 7 1 3 w w w . a n p e c . c o m . t w 1 8 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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