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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 - o c t . , 2 0 1 0 a p a 2 0 7 0 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 . s t e r e o 2 . 6 w a u d i o p o w e r a m p l i f i e r ( w i t h d c v o l u m e c o n t r o l ) f e a t u r e s low operating current about 9ma (typical) improved depop circuitry to eliminate turn-on and turn-off transients in outputs 32-step volume adjustable by dc voltage with hysteresis output power at 1% thd+n - 2.4w, at v dd =5v, btlmode, r l =3 w - 2w, at v dd =5v, btlmode, r l =4 w at 10% thd+n - 3.1w, at v dd =5v, btlmode, r l =3 w - 2.6w, at v dd =5v, btlmode, r l =4 w two output modes: btl and se modes selected by se/btl pin low current consumption in shutdown mode (1 m a, typical) short circuit protection thermal shutdown protection and over-current protection circuitry the outp signal and the inn signal are outphase power enhanced package (dip-16/dip-16a) lead free and green devices available (rohs compliant) a p p l i c a t i o n s g e n e r a l d e s c r i p t i o n t h e a p a 2 0 7 0 i s a m o n o l i t h i c i n t e g r a t e d c i r c u i t , w h i c h p r o v i d e s p r e c i s e d c v o l u m e c o n t r o l , a n d a s t e r e o b r i d g e d a u d i o p o w e r a m p l i f i e r s c a p a b l e o f p r o d u c i n g 2 . 6 w ( 2 w ) i n t o 4 w w i t h l e s s t h a n 1 0 % ( 1 . 0 % ) t h d + n . t h e a t t e n u a t o r r a n g e o f t h e v o l u m e c o n t r o l i n a p a 2 0 7 0 i s f r o m 1 8 d b ( v volume = 0 v ) t o - 8 0 d b ( v volume = 3 . 5 4 v ) w i t h 3 2 s t e p s . t h e a d v a n t a g e o f i n t e r n a l g a i n s e t t i n g c a n b e l e s s c o m p o n e n t s a n d p c b a r e a . b o t h t h e d e p o p c i r c u i t r y a n d t h e 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 c i r c u i t r y a r e i n t e g r a t e d i n t h e a p a 2 0 7 0 , t h a t r e d u c e p o p s a n d c l i c k s n o i s e d u r - i n g p o w e r u p o r s h u t d o w n m o d e o p e r a t i o n . i t a l s o i m - p r o v e s t h e p o w e r o f f p o p n o i s e a n d p r o t e c t s t h e c h i p b e - i n g d e s t r o y e d b y o v e r t e m p e r a t u r e a n d s h o r t c u r r e n t f a i l u r e . t o s i m p l i f y t h e a u d i o s y s t e m d e s i g n , t h e a p a 2 0 7 0 c o m b i n e s a s t e r e o b r i d g e - t i e d l o a d ( b t l ) m o d e f o r s p e a k e r d r i v e a n d a s t e r e o s i n g l e - e n d ( s e ) m o d e f o r h e a d - p h o n e d r i v e i n t o a s i n g l e c h i p , w h e r e b o t h m o d e s a r e e a s i l y s w i t c h e d b y t h e s e / b t l i n p u t c o n t r o l p i n s i g n a l . notebook pc lcd monitor or tv 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 r-ch input l-ch input loutp loutn linn volume APA2070 routp rinn routn stereo headphone stereo speaker dc volume control
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 - o c t . , 2 0 1 0 a p a 2 0 7 0 w w w . a n p e c . c o m . t w 2 symbol parameter rating unit v dd supply voltage (vdd to gnd) - 0.3 to 6 v input voltage ( se/btl, shutdown , volume, rin n , lin n to gnd) - 0.3 to v dd + 0.3 v out put voltage ( loutn, loutp, routp, routn to gnd ) - 0.3 to v dd + 0.3 v t a operating ambien t 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 p i n c o n f i g u r a t i o n 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 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 ) note 1: absolute maximum ratings are those values beyond which the life of a device may be impaired. exposure to absolute maximum rating conditions for extended periods may affect device reliability. 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 ) . APA2070 handling code temperature range package code APA2070 j : APA2070 xxxxx xxxxx - date code assembly material package code j : dip-16 / dip-16a operating ambient temperature range i : - 40 to 85 o c handling code tu : tube assembly material l : lead free device g : halogen and lead free device gnd 5 gnd 4 13 gnd se/ btl 8 15 vdd linn 6 12 gnd rinn 3 14 routp bypass 2 16 routn 11 loutp 10 vdd volume 7 shutdown 1 9 loutn APA2070
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 - o c t . , 2 0 1 0 a p a 2 0 7 0 w w w . a n p e c . c o m . t w 3 symbol parameter typical value unit q ja junction - to - ambient resistance in free air (note 2) 45 o c/w q jc junction - to - case resistance in free air (note 3) 8 o c/w symbol parameter range unit v dd supply voltage 4.5 ~ 5.5 shutdown 0.4v dd ~ v dd v ih high level threshold voltage se/ btl 0.8v dd ~ v dd shutdown 0 ~ 1.0 v il low level threshold voltage se/ btl 0 ~ 1.0 v c i m common mode input voltag e ~ v dd - 1.0 v t a ambient t emperature range - 40 ~ 80 t j junction temperature range - 40 ~ 125 o c r l speaker resistance 3 ~ r l headphone resistance 16 ~ w 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 ( n o t e 4 ) 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 APA2070 symbol parameter test conditions min. typ. max. unit v se/btl =0v - 9 20 i dd supply current v se/btl =5v - 4 10 ma i sd shutdown current v se/btl =0v v shutdown =0v - 1 - m a t start - up start - up time from shutdown c b ypass = 2.2 m f - 1.6 - s btl mode. v dd =5v, gain=6db (unless otherwise noted) thd+n=10%, r l =3 w, f in =1 k hz - 3.1 - thd+n =10%, r l =4 w , f in =1 k hz - 2.6 - thd+n =10%, r l =8 w , f in =1 k hz - 1.6 - thd+n =1%, r l =3 w , f in =1 k hz - 2.4 - thd+n =1%, r l =4 w , f in =1 k hz - 2 - p o output power thd+n =0.5%, r l =8 w , f in =1 k hz 1 1.3 - w p o =1.2w, r l =4 w , f in =1 k hz - 0.07 - thd+n total harmonic distortion pulse noise p o =0.9w, r l =8 w , f in =1 k hz - 0.08 - % unless otherwise specified, these specifications apply over v dd =5v, v gnd =0v and t a = -40 ~ 85 o c. typical values are at t a =25 o c. n o t e 4 : r e f e r t o t h e 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 t h e r m a l c h a r a c t e r i s t i c s n o t e 2 : q j a i s m e a s u r e d w i t h t h e c o m p o n e n t m o u n t e d o n a h i g h e f f e c t i v e t h e r m a l c o n d u c t i v i t y t e s t b o a r d i n f r e e a i r . 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 g n d p i n o n t h e b e s i d e o f t h e d i p - 1 6 / d i p - 1 6 a p a c k a g e .
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 - o c t . , 2 0 1 0 a p a 2 0 7 0 w w w . a n p e c . c o m . t w 4 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 . ) APA2070 symbol parameter test condition s min. typ. max. unit btl mode. v dd =5v, gain=6db (unless otherwise noted) (cont.) psrr power supply rejection ratio v dd ripple=0.1vrms, r l =8 w , c b ypass = 2.2 m f, f in = 217 hz - 60 - db crosstalk channel separati on c b ypass = 2.2 m f, r l =8 w , f in =1 k hz - 90 - db v os output offset voltage r l = 4 w - 5 - mv s/n signal to noise ratio p o =1.1w, r l =8 w , a_we i ght ing - 95 - db se mode. v dd =5v, gain= 0db thd+n=10%, r l = 16 w, f in =1 k hz - 220 - thd+n =10%, r l = 32 w , f in =1 k hz - 120 - thd+n =1%, r l = 16 w , f in =1 k hz - 160 - po output power thd+n =1%, r l =3 2 w , f in =1 k hz - 95 - mw p o =125mw, r l = 16 w , f in =1 k hz - 0.09 - thd+n total harmonic distortion pulse noise p o = 65m w, r l = 32 w , f in =1 k hz - 0.09 - % psrr power supply rejectio n ratio v dd ripple =0.1 vrms, r l = 32 w , c b ypass = 2.2 m f, f in = 217 hz - 60 - db crosstalk channel separation c b ypass = 2.2 m f, r l =32 w , f in =1 k hz - 60 - db v os output offset voltage r l = 32 w - 5 - mv s/n signal to noise ratio p o = 75mw , r l = 32 w , a_we i ghting - 100 - db unless otherwise specified, these specifications apply over v dd =5v, v gnd =0v and t a = -40 ~ 85 o c. typical values are at t a =25 o c .
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 - o c t . , 2 0 1 0 a p a 2 0 7 0 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 t h d + n v s . o u t p u t p o w e r t h d + n v s . o u t p u t p o w e r thd+n (%) o u t p u t p o w e r ( w ) o u t p u t p o w e r ( w ) thd+n (%) t h d + n v s . o u t p u t p o w e r t h d + n v s . o u t p u t p o w e r thd+n (%) o u t p u t p o w e r ( w ) o u t p u t p o w e r ( w ) thd+n (%) 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 thd+n (%) thd+n (%) f r e q u e n c y ( h z ) f r e q u e n c y ( h z ) 0.01 10 0.1 1 0 3.5 0.5 1 1.5 2 2.5 3 v dd = 5v a v =18db f in = 1khz btl mode r l = 8 w r l = 4 w r l = 3 w 0.01 10 0.1 1 0 240m 40m 80m 120m 160m 200m v dd = 5v a v =12db f in = 1khz se mode r l = 32 w r l = 16 w 0.01 10 0.1 1 0 3.5 0.5 1 1.5 2 2.5 3 a v = 18db a v = 6db v dd = 5v f in =1khz r l =3 w btl mode 0.05 10 0.1 1 10m 5 100m 1 f in = 20khz f in = 20hz f in = 1khz v dd = 5v a v =18db r l =3 w btl mode 0.01 10 0.1 1 20 20k 100 1k 10k v dd = 5v r l =3 w p o = 1.8w btl mode a v = 18db a v = 6db 0.01 10 0.1 1 20 20k 100 1k 10k p o = 0.9w p o = 1.8w v dd = 5v a v = 6db r l =3 w btl mode
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 - o c t . , 2 0 1 0 a p a 2 0 7 0 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 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 ) o u t p u t p o w e r ( w ) thd+n (%) thd+n (%) 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 thd+n (%) thd+n (%) f r e q u e n c y ( h z ) 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 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 ) o u t p u t p o w e r ( w ) thd+n (%) thd+n (%) 0.01 10 0.1 1 10m 5 100m 1 f in = 20khz f in = 20hz f in = 1khz v dd = 5v a v =18db r l =4 w btl mode 0.01 10 0.1 1 20 20k 100 1k 10k v dd = 5v r l =4 w p o =1.5w btl mode a v = 18db a v = 6db 0.01 10 0.1 1 20 20k 100 1k 10k v dd = 5v a v = 6db r l =4 w btl mode p o = 0.8w p o = 1.5w 0.01 10 0.1 1 0 3.5 0.5 1 1.5 2 2.5 3 a v = 18db a v = 6db v dd = 5v f in = 1khz r l =8 w btl mode 0.01 10 0.1 1 10m 5 100m 1 f in = 20khz f in = 20hz f in = 1khz v dd = 5v a v = 18db r l =8 w btl mode 0.01 10 0.1 1 0 3.5 0.5 1 1.5 2 2.5 3 a v = 18db a v = 6db v dd = 5v f =1khz r l =4 w btl mode
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 - o c t . , 2 0 1 0 a p a 2 0 7 0 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 . ) thd+n (%) thd+n (%) 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 thd+n (%) thd+n (%) f r e q u e n c y ( h z ) 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 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 ) o u t p u t p o w e r ( w ) thd+n (%) thd+n (%) 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 f r e q u e n c y ( h z ) f r e q u e n c y ( h z ) 0.01 10 0.1 1 20 20k 100 1k 10k p o = 0.5w v dd = 5v a v = 6db r l =8 w btl mode p o = 0.9w 0.01 10 0.1 1 20 20k 100 1k 10k a v = 6db a v = 18db v dd =5v r l =8 w p o =0.9w btl mode 0.01 10 0.1 1 0 240m 40m 80m 120m 160m 200m v dd =5v f in =1khz r l =16 w se mode a v = 0db a v = 12db 0.01 10 0.1 1 10m 300m 50m 100m 200m v dd =5v a v =12db r l =16 w c o =1000 m f se mode f in = 20khz f in = 1khz f in = 20hz 0.01 10 0.1 20 20k 100 1k 10k v dd =5v r l =16 w p o =125mw c o =1000 m f se mode a v = 0db 1 a v = 12db 0.01 10 0.1 1 20 20k 100 1k 10k v dd =5v a v =0db r l =16 w c o =1000 m f se mode p o = 125mw p o = 60mw
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 - o c t . , 2 0 1 0 a p a 2 0 7 0 w w w . a n p e c . c o m . t w 8 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 . ) thd+n (%) thd+n (%) f r e q u e n c y r e s p o n s e f r e q u e n c y r e s p o n s e thd+n (%) thd+n (%) f r e q u e n c y ( h z ) 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 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 ) o u t p u t p o w e r ( w ) amplitude(db) amplitude(db) 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 . f r e q u e n c y f r e q u e n c y ( h z ) phase (degrees) phase (degrees) 0.01 10 0.1 1 0 240m 40m 80m 120m 160m 200m v dd =5v f in =1khz r l =32 w se mode a v = 0db a v = 12db 0.01 10 0.1 1 10m 300m 50m 100m 200m v dd =5v a v =12db r l =32 w c o =1000 m f se mode f in = 20hz f in = 1khz f in = 20khz 0.01 10 0.1 1 20 20k 100 1k 10k a v = 0db a v = 14db v dd =5v r l =32 w p o =65mw c o =1000 m f se mode 0.01 10 0.1 1 20 20k 100 1k 10k p o = 65mw p o = 30mw v dd =5v a v =12db r l =32 w c o =1000 m f se mode +60 +260 +100 +140 +180 +220 +0 +20 +4 +8 +12 +16 10 200k 100 1k 10k phase( 6db) amplitude( 6db) amplitude( 14db) phase( 14db) v dd =5v r l =4 w p o =0.8w btl mode +60 +260 +100 +140 +180 +220 +0 +20 +4 +8 +12 +16 10 200k 100 1k 10k amplitude( 6db) amplitude( 14db) phase( 14db) phase( 6db) v dd =5v r l =8 w p o =0.5w btl mode
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 - o c t . , 2 0 1 0 a p a 2 0 7 0 w w w . a n p e c . c o m . t w 9 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 . ) c r o s s t a l k v s . r e s p o n s e c r o s s t a l k v s . r e s p o n s e f r e q u e n c y ( h z ) f r e q u e n c y ( h z ) crosstalk(db) crosstalk(db) c r o s s t a l k v s . f r e q u e n c y f r e q u e n c y ( h z ) c r o s s t a l k v s . f r e q u e n c y f r e q u e n c y ( h z ) f r e q u e n c y r e s p o n s e f r e q u e n c y r e s p o n s e f r e q u e n c y ( h z ) f r e q u e n c y ( h z ) amplitude(db) amplitude(db) crosstalk(db) crosstalk(db) phase (degrees) phase (degrees) +60 +260 +100 +140 +180 +220 10 200k 100 1k 10k amplitude(0db) phase(0db) amplitude(12db) phase(12db) -8 +14 -4 0 +4 +10 v dd =5v r l =16 w c o =1000 m f p o =60mw se mode +60 +260 +100 +140 +180 +220 10 200k 100 1k 10k amplitude(12db) amplitude(0db) phase(12db) phase(0db) -8 +14 -4 0 +4 +10 v dd =5v r l =32 w c o =1000 m f p o =30mw se mode -120 +0 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 20 20k 100 1k 10k v dd =5v r l =8 w p o =0.9w btl mode right to left left to right -120 +0 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 20 20k 100 1k 10k right to left left to right v dd =5v r l =4 w p o =1.5w btl mode -100 +0 -90 -80 -70 -60 -50 -40 -30 -20 -10 20 20k 100 1k 10k right to left left to right v dd =5v r l =16 w c o =1000 m f p o =125mw se mode -100 +0 -80 -60 -40 -20 20 20k 100 1k 10k -10 -30 -50 -70 -90 v dd =5v r l =32 w c o =1000 m f p o =65mw se mode right to left left to right
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 - o c t . , 2 0 1 0 a p a 2 0 7 0 w w w . a n p e c . c o m . t w 1 0 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 . ) m u t e a t t e n u a t i o n v s . f r e q u e n c y s h u t d o w n a t t e n u a t i o n v s . f r e q u e n c y f r e q u e n c y ( h z ) f r e q u e n c y ( h z ) shutdown attenuation(db) mute attenuation(db) 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 ) 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 ) 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 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 f r e q u e n c y ( h z ) f r e q u e n c y ( h z ) output noise voltage(db) output noise voltage(db) psrr(db) psrr(db) -100 +0 -90 -80 -70 -60 -50 -40 -30 -20 -10 20 20k 100 1k 10k v dd =5v r l =4 w v in =200mv a v =18db btl mode -100 +0 -90 -80 -70 -60 -50 -40 -30 -20 -10 20 20k 100 1k 10k v dd =5v r l =32 w v in =200mv a v =12db se mode 1 m 100 m 10 m 20 m 20 20k 100 1k 10k v dd =5v a v =6db r l =4 w btl mode a-weighting filter bw<22khz 1 m 100 m 10 m 20 m 20 20k 100 1k 10k filter bw<22khz a-weighting v dd =5v a v =0db r l =32 w se mode -130 +0 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 20 20k 100 1k 10k v dd =5v r l =8 w v in =1vrms a v =6db btl mode -120 +0 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 20 20k 100 1k 10k v dd =5v r l =8 w v in =1vrms a v =6db btl mode
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 - o c t . , 2 0 1 0 a p a 2 0 7 0 w w w . a n p e c . c o m . t w 1 1 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 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 g a i n v s . v o l u m e v o l t a g e 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 d c v o l t a g e ( v ) s u p p l y v o l t a g e ( v ) supply current (ma) gain(db) power dissipation(w) power dissipation(w) 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0 3.0 3.5 4.0 4.5 5.0 5.5 btl se no load o u t p u t p o w e r ( w ) o u t p u t p o w e r ( m w ) -80 -70 -60 -50 -40 -30 -20 -10 0 10 20 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 up down v dd =5v no load btl mode 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 r l =3 w r l =4 w r l =8 w v dd =5v btl mode 0 20 40 60 80 100 120 140 160 180 200 0 50 100 150 200 250 r l =8 w r l =32 w r l =16 w v dd =5v se mode 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.50 4.75 5.00 5.25 5.50 o u t p u t p o w e r ( w ) output power vs. supply voltage r l =8 w ,thd+n=1% r l =8 w ,thd+n=10% r l =4 w ,thd+n=1% r l =4 w ,thd+n=10% r l =3 w ,thd+n=1% r l =3 w ,thd+n=10% supply voltage (v) btl mode a v =6db
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 - o c t . , 2 0 1 0 a p a 2 0 7 0 w w w . a n p e c . c o m . t w 1 2 p i n d e s c r i p t i o n pin no. n ame function 1 shutdown shutdown control pin . pulling low the voltage on this pin shuts off the ic. in shutdown mode, the ic only draws 1 m a (typical) of supply current. 2 bypass bypass capacitor connection pin for the bias voltage genera tor. 3 rin nn right channel input terminal 4,5,12,13 gnd ground connection . connect all of the gnd pins to ground plane. 6 lin n left channel input terminal 7 volume dc voltage input pin for internal volume gain setting (dc volume control). 8 se/ btl output mode control input, high for se output mode and low for btl mode. 9 lout n left channel negative output in btl mode and high impedance in se mode. 10,15 vdd supply voltag e input pin. connect all of the vdd pins to supply voltage. 11 lout p left ch annel positive output in btl mode and se mode. 14 rout p right channel positive output in btl mode and se mode. 16 rout n right channel negative output in btl mode and high impedance in se mode. b l o c k d i a g r a m power and depop circuit loutp loutn linn se/btl shutdown bypass dc volume control volume routp rinn bias voltage generator routn gnd vdd shutdown se/btl mode selection circuit
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 - o c t . , 2 0 1 0 a p a 2 0 7 0 w w w . a n p e c . c o m . t w 1 3 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 4 4 ring headphone jack sleeve control pin tip se/ btl signal 1 220 m f 220 1k w r-ch input v dd 100k shutdown signal 1 l-ch input v dd vdd gnd 100 0.1 100k w shutdown loutp loutn linn se/ btl shutdown bypass volume control volume routp rinn routn v dd 50k w 2.2 m f m f m f m f w w w m f m f bias voltage generator se/btl mode selection circuit dc c cl c cr c il c ir c s c bypass 1k 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 . 4 - o c t . , 2 0 1 0 a p a 2 0 7 0 w w w . a n p e c . c o m . t w 1 4 d c v o l u m e c o n t r o l t a b l e _ b t l m o d e voltage range (% of v dd ) voltage range (v dd =5v) gain(db) h igh(%) low(%) recommended (%) h igh(v) low(v) recommended (v) 18 2.40 0.00 0.00 0.12 0.00 0.00 17.5 4.60 3.40 4.00 0.23 0.17 0.20 17 6.80 5.60 6.20 0.34 0.28 0.31 16.5 9.20 7.80 8.60 0.46 0.39 0.43 16 11.40 10.20 10.80 0.57 0.51 0.54 15.5 13.80 12.40 13.00 0.69 0.62 0.65 15 16.00 14.60 15.40 0.80 0.73 0.77 14.5 18.20 16.80 17.60 0.91 0.84 0.88 14 20.60 19.20 19.80 1.03 0.96 0.99 13 22.80 21.40 22.00 1.14 1.07 1.10 12 25.00 23.60 24.40 1. 25 1.18 1.22 10 27.40 25.80 26.60 1.37 1.29 1.33 8 29.60 28.20 28.80 1.48 1.41 1.44 6 31.80 30.40 31.20 1.59 1.52 1.56 4 34.20 32.60 33.40 1.71 1.63 1.67 2 36.40 34.80 35.60 1.82 1.74 1.78 0 38.60 37.00 37.80 1.93 1.85 1.89 - 2 41.00 39.40 40.20 2.05 1.97 2.01 - 4 43.20 41.60 42.40 2.16 2.08 2.12 - 7 45.60 43.80 44.60 2.28 2.19 2.23 - 10 47.80 46.00 47.00 2.39 2.30 2.35 - 13 50.00 48.40 49.20 2.50 2.42 2.46 - 16 52.40 50.60 51.40 2.62 2.53 2.57 - 19 54.60 52.80 53.80 2.73 2.64 2.69 - 22 56.80 55.00 56 .00 2.84 2.75 2.80 - 25 59.20 57.40 58.20 2.96 2.87 2.91 - 28 61.40 59.60 60.40 3.07 2.98 3.02 - 31 63.60 61.80 62.80 3.18 3.09 3.14 - 34 66.00 64.00 65.00 3.30 3.20 3.25 - 37 68.20 66.40 67.20 3.41 3.32 3.36 - 40 70.40 68.60 69.60 3.52 3.43 3.48 - 80 100. 00 70.80 100.00 5.00 3.54 5.00
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 - o c t . , 2 0 1 0 a p a 2 0 7 0 w w w . a n p e c . c o m . t w 1 5 f u n c t i o n d e s c r i p t i o n f i g u r e 1 : a p a 2 0 7 0 i n t e r n a l c o n f i g u r a t i o n ( e a c h c h a n n e l ) bridge-tied load (btl) operation the APA2070?s output stage of each channel, which con- sists of one pair of operational amplifiers, provides op- tion for btl operation shown as figure 1. s i n g l e - e n d e d ( s e ) o p e r a t i o n s e / b t l mode selection function t h e p o w e r a m p l i f i e r ? s ( o p 1 ) g a i n i s s e t b y i n t e r n a l u n i t y g a i n a n d i n p u t a u d i o s i g n a l c o m e s f r o m i n t e r n a l v o l u m e c o n t r o l a m p l i f i e r 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 o u t p a n d o u t n , a n a m p l i f i e r c o n f i g u r a t i o n i s c o m m o n l y r e - f e r r e d t o b r i d g e d m o d e i s e s t a b l i s h e d . 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 t h e g r o u n d . a 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 e s 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 . w h e n p l a c e d 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 a m p l i f i e r h a s f o u r t i m e s t h e o u t p u t p o w e r o f a s e a m p i f i e r . 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 a p a 2 0 7 0 , 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 , r o u t p , r o u t n , l o u t p , a n d l o u t n , a r e b i a s e d a t h a l f - s u p p l y , i t ? s n o t n e c e s s a r y f o r d c v o l t a g e t o b e 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 . t o c o n s i d e r t h e 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 s h o w n i n 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 , a c o u p l i n g c a p a c i t o r i s r e q u i r e d t o b l o c k t h e d c o f f s e t v o l t a g e f r o m r e a c h i n g t h e l o a d . t h e s e c a p a c i t o r s c a n b e q u i t e l a r g e ( a p p r o x i m a t e l y 3 3 m f t o 1 0 0 0 m f ) s o t h e y t e n d t o b e e x p e n s i v e , o c c u p y v a l u a b l e p c b a r e a , a n d h a v e t h e a d d i t i o n a l d r a w b a c k o f l i m i t i n g 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 s y s t e m ( r e f e r t o t h e o u t p u t c o u p l i n g c a p a c i t o r ) . t h e r u l e s d e s c r i b e d s t i l l h o l d w i t h t h e a d d i t i o n o f t h e f o l l o w i n g r e l a t i o n s h i p : ( 1 ) f i g u r e 2 : s e / b t l i n p u t s e l e c t i o n b y p h o n e j a c k p l u g ring headphone jack sleeve control pin tip 1k w v dd 100k w se/btl t h e b e s t s a v i n g f e a t u r e s o f a p a 2 0 7 0 i s t h a t i t c a n b e s w i t c h e d e a s i l y b e t w e e n b t l a n d s e m o d e s . t h i s f e a - t u r e e l i m i n a t e s t h e r e q u i r e m e n t f o r a n a d d i t i o n a l h e a d - p h o n e a m p l i f i e r i n 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 t e r e o s p e a k e r s a r e d r i v e n i n b t l m o d e b u t e x t e r n a l h e a d p h o n e o r s p e a k e r s m u s t b e a c c o m m o d a t e d . i n s i d e o f t h e a p a 2 0 7 0 , t w o s e p a r a t e d a m p l i f i e r s d r i v e o u t p a n d o u t n ( s e e f i g u r e 1 ) . t h e s e / b t l i n p u t c o n - t r o l s t h e o p e r a t i o n o f t h e f o l l o w e r a m p l i f i e r t h a t d r i v e s l o u t p a n d r o u t n . w h e n s e / b t l k e e p s l o w , t h e o p 2 t u r n s o n a n d t h e a p a 2 0 7 0 i s i n t h e b t l m o d e . w h e n s e / b t l k e e p s h i g h , t h e o p 2 i s i n a h i g h o u t p u t i m p e d a n c e s t a t e , w h i c h c o n f i g u r e s t h e a p a 2 0 7 0 a s s e d r i v e r f r o m o u t p . i d d i s r e d u c e d b y a p p r o x i m a t e l y o n e - h a l f i n s e m o d e . c o n t r o l o f t h e s e / b t l i n p u t c a n b e a l o g i c - l e v e l t t l s o u r c e o r a r e s i s t o r d i v i d e r n e t w o r k o r t h e s t e r e o h e a d p h o n e j a c k w i t h s w i t c h p i n a s s h o w n i n t h e 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 . bias voltage generator outp outn op1 op2 volume control amplifier output signal r l c b y p a s s x 1 5 0 k w 2 r i c i << 2 r l c c 1 1 1
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 - o c t . , 2 0 1 0 a p a 2 0 7 0 w w w . a n p e c . c o m . t w 1 6 s e / b t l mode selection function ( c o n t . ) t h e a p a 2 0 7 0 h a s a n i n t e r n a l s t e r e o v o l u m e c o n t r o l t h a t s e t t i n g i s t h e f u n c t i o n o f t h e d c v o l t a g e a p p l i e d t o t h e v o l u m e i n p u t p i n . t h e a p a 2 0 7 0 v o l u m e c o n t r o l c o n s i s t s o f 3 2 s t e p s t h a t a r e i n d i v i d u a l l y s e l e c t e d b y a v a r i a b l e d c v o l t a g e l e v e l o n t h e v o l u m e c o n t r o l p i n . t h e r a n g e o f t h e s t e p s , c o n t r o l l e d b y t h e d c v o l t a g e , a r e f r o m 1 8 d b t o - 8 0 d b . e a c h g a i n s t e p c o r r e s p o n d s t o a s p e c i f i c i n p u t v o l t a g e r a n g e , a s s h o w n i n t a b l e . t o m i n i m i z e t h e e f f e c t o f n o i s e o n t h e v o l u m e c o n t r o l p i n , w h i c h c a n a f f e c t t h e s e - l e c t e d g a i n l e v e l , h y s t e r e s i s a n d c l o c k d e l a y a r e i m p l e m e n t e d . t h e a m o u n t o f h y s t e r e s i s c o r r e s p o n d s t o h a l f o f t h e s t e p w i d t h , a s s h o w n i n t h e v o l u m e c o n t r o l g r a p h . d c v o l u m e c o n t r o l f u n c t i o n f o r t h e h i g h e s t a c c u r a c y , t h e v o l t a g e s h o w n i n t h e ? r e c - o m m e n d e d v o l t a g e ? c o l u m n o f t h e t a b l e i s u s e d t o s e l e c t a d e s i r e d g a i n . t h i s r e c o m m e n d e d v o l t a g e i s e x a c t l y h a l f - w a y b e t w e e n t h e t w o n e a r e s t t r a n s i t i o n s . t h e g a i n l e v e l s a r e 3 2 s t e p s f r o m 1 8 d b t o - 4 0 d b i n b t l m o d e , a n d t h e l a s t s t e p a t - 8 0 d b a s m u t e m o d e . f u n c t i o n d e s c r i p t i o n ( c o n t . ) 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 l o w , 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 < 1 m a . a p a 2 0 7 0 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 o n , s h u t d o w n p i n i s p u l l e d t o 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 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 i n g . 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 7 0 c o n t a i n s a s h u t d o w n p i 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 i s p l a c e d o n t h e s h u t d o w n p i n . 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 2 . 0 v . i t w o u l d b e b e t t e r 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 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 . s h u t d o w n f u n c t i o n dc volume (v) g a i n ( d b ) -80 -70 -60 -50 -40 -30 -20 -10 0 10 20 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 backward forward APA2070 dc volume control curve (btl) figure 3: gain setting vs. volume pin voltage thermal protection the thermal protection circuit limits the junction tempera- ture of the APA2070. when the junction temperature ex- ceeds t j = +150 o c, a thermal sensor turns off the amplifier, allowing the devices to cool. the thermal sen- sor allows the amplifier to start-up after the junction tem- perature down about 125 o c. the thermal protection is designed with a 25 o c hysteresis to lower the average t j during continuous thermal overload conditions, which is increasing lifetime of the ic. over-current protection i n f i g u r e 2 , i n p u t s e / b t l o p e r a t e s a s b e l o w : w h e n t h e p h o n e j a c k p l u g i s i n s e r t e d , t h e 1 k w r e s i s t o r i s d i s c o n n e c t e d a n d t h e s e / b t l i n p u t i s p u l l e d h i g h t o e n - a b l e t h e s e m o d e . m e a n w h i l e , t h e o u t n a m p l i f i e r i s s h u t d o w n w h i c h t u r n s t h e s p e a k e r t o b e m u t e . t h e o u t p a m p l i f i e r t h e n d r i v e s t h r o u g h t h e o u t p u t c a p a c i t o r i n t o t h e h e a d p h o n e j a c k . w h e n t h e r e i s n o h e a d p h o n e p l u g g e d i n t o t h e s y s t e m , t h e c o n t a c t p i n o f t h e h e a d p h o n e j a c k i s c o n n e c t e d f r o m t h e s i g n a l p i n , a n d t h e v o l t a g e d i v i d e r i s s e t u p b y r e s i s t o r s 1 0 0 k w a n d 1 k w . r e s i s t o r 1 k w t h e n i s p u l l e d l o w t h e s e / b t l p i n , e n a b l i n g t h e b t l f u n c t i o n . t h e a p a 2 0 7 0 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 7 0 t u r n s o f f t h e o u t p u t t o p r e v e n t t h e i c 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 . w h e n t h e o v e r - c u r r e n t o c c u r s i n p o w e r a m p l i f i e r , t h e o u t p u t b u f f e r ? s c u r r e n t w i l l b e f o l d b a c k e d t o a l o w s e t t i n g l e v e l , a n d i t w i l l r e l e a s e w h e n o v e r - c u r r e n t s i t u a t i o n i s n o l o n g e x i s t e n c e . o n t h e c o n t r a r y , i f t h e o v e r - c u r r e n t p e r i o d i s l o n g e n o u g h a n d t h e i c ? s j u n c t i o n t e m p e r a t u r e r e a c h e s t h e t h e r m a l p r o t e c t i o n t h r e s h o l d , t h e i c w i l l e n t e r t h e r m a l p r o t e c t i o n m o d e .
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 - o c t . , 2 0 1 0 a p a 2 0 7 0 w w w . a n p e c . c o m . t w 1 7 a p p l i c a t i o n i n f o r m a t i o n ( 3 ) ( 2 ) i n p u t r e s i s t a n c e ( r i ) t h e g a i n f o r e a c h a u d i o i n p u t o f t h e a p a 2 0 7 0 i s s e t b y t h e i n t e r n a l r e s i s t o r s ( r i a n d r f ) o f v o l u m e c o n t r o l a m p l i f i e r i n i n v e r t i n g c o n f i g u r a t i o n . b t l m o d e o p e r a t i o n b r i n g s t h e f a c t o r o f 2 i n t h e g a i n e q u a t i o n d u e t o t h e i n v e r t i n g a m p l i f i e r m i r r o r i n g t h e v o l t - a g e s w i n g a c r o s s t h e l o a d . f o r v a r y i n g g a i n s e t t i n g s , t h e a p a 2 0 7 0 g e n e r a t e s e a c h i n p u t r e s i s t a n c e o n f i g u r e 4 . t h e i n p u t r e s i s t a n c e w i l l a f f e c t 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 a u d i o s i g n a l . t h e m i n m u m i n p u t r e s i s t a n c e i s 3 0 k w w h e n g a i n s e t t i n g i s 1 8 d b a n d t h e r e s i s t a n c e w i l l r a m p u p w h e n c l o s e l o o p g a i n b e l o w 1 8 d b . 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 ( + / - 1 0 % ) c a u s e d b y p r o - c e s s v a r i a t i o n . 0 20 40 60 80 100 120 140 160 -40 -30 -20 -10 0 10 20 gain(btl) r i ( k w ) r i vs. gain(btl) figure 4: input resistance vs. gain setting ( 4 ) ( 5 ) 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 ( 3 0 k w ) 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 : 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 . 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 3 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 5 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 b e l o w : w h e n v a r i t a t i o n o f i n p u t r e s i s t a n c e ( r i ) i s c o n s i d e r e d , t h e c i s h o u l d i s 0 . 1 m f , s o a v a l u e i n t h e r a n g e o f 0 . 0 4 7 m f t o 0 . 4 7 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 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 . 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 p o w e r a m p l i f i e r , 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 l o c a t i o n o n t h e b y p a s s p i n 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 s u p p l y b y p a s s c a p a c i t o r i s t o i m p r o v e 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 w o c r i t i c a l c r i t e r i a o f b y p a s s c a p a c i t o r ( c b y p a s s ) : 1 s t , i t 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 a n d c l i c k - a n d - p o p p e r f o r m a n c e ; 2 n d , t h e l e a k a g e c u r r e n t o f c b y p a s s w i l l i n d u c e t h e v o l t a g e d r o p o f v b y p a s s ( v o l t a g e o f b y p a s s p i n ) , a n d i f t h e v b y p a s s i s l e s s t h a n 0 . 4 9 v d d , t h e a p a 2 0 7 0 w i l l e n t e r m u t e c o n d i t i o n . t h e v a l u e o f v b y p a s s c a n b e c a l c u l a t e d a s b e l o w : ( 6 ) where i leakage =leakage current of c bypass therefore, it is recommended that c bypass ?s leakage cur- rent should be no more than 0.4 m a for properly work of the APA2070. i f v r r a gain se - = = i f r r -2 gain btl = c f k 30 2 1 i c w p = w = 150k i - 0.5v v leakage dd bypass i ) highpass ( c c k 30 2 1 f w p =
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 - o c t . , 2 0 1 0 a p a 2 0 7 0 w w w . a n p e c . c o m . t w 1 8 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 . ) ( 7 ) to avoid the start-up pop noise, the bypass voltage should rise slower than the input bias voltage and the relation- ship shown in equation should be maintained. the capacitor is fed from a 150k w resistor inside of th e am plifier and the 150k w is the maximum inpu t resi s- tance of (r i +r f ). bypass cap acitor, c b ypass , values of 2.2 m f to 10 m f ceramic or tantalum low-esr cap acitors are recommended for the best th d+n and noise performance. t h e b y p a s s c a p a c i t a n c e a l s o a f f e c t s 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 : ( 8 ) ( 9 ) o u t p u t c o u p l i n g c a p a c i t o r ( c c ) i n t h e t y p i c a l 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 , 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 ( c c ) i s r e q u i r e d t o b l o c k t h e d c b i a s a t t h e o u t p u t o f t h e a m p l i f i e r t h u s p r e v e n t i n g d c c u r r e n t s i n t h e l o a d . a s w i t h 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 , t h e o u t p u t c o u p l i n g c a p a c i t o r a n d i m p e d a n c e o f t h e l o a d f o r m a h i g h - p a s s f i l t e r g o v e r n e d b y t h e e q u a t i o n . f o r e x a m p l e , a 3 3 0 m f c a p a c i t o r w i t h a n 8 w s p e a k e r w o u l d a t t e n u a t e l o w f r e q u e n c i e s b e l o w 6 0 . 6 h z . t h e m a i n d i s a d v a n t a g e , f r o m a p e r f o r m a n c e s t a n d p o i n t , i s t h e l o a d i m p e d a n c e i s t y p i c a l l y s m a l l , w h i c h d r i v e s t h e l o w - f r e - q u e n c y c o r n e r h i g h e r d e g r a d i n g t h e b a s s r e s p o n s e . l a r g e v a l u e s o f c c a r e r e q u i r e d t o p a s s l o w f r e q u e n c i e s i n t o t h e l o a d . 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 . ) p o w e r s u p p l y d e c o u p l i n g c a p a c i t o r ( c s ) t h e a p a 2 0 7 0 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 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 l e a d 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 , i t i s r e c o m m e n d e d t o p l a c e 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 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 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 2 0 7 0 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 s a n d p o p s , 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 a m p 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 s a n d p o p s . 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 a s e c o n f i g u r a t i o n , t h e o u t p u t c o u p l i n g c a p a c i t o r ( c c ) , i s o f p a r t i c u l a r c o n c e r n . t h i s c a p a c i t o r d i s c h a r g e s t h r o u g h t h e i n t e r n a l 1 0 k w r e s i s t o r s . d e p e n d i n g o n t h e s i z e o f c c , t h e t i m e c o n s t a n t c a n b e r e l a t i v e l y l a r g e . t o r e d u c e t r a n s i e n t s i n s e m o d e , a n e x t e r n a l 1 k w r e s i s t o r c a n b e p l a c e d i n p a r a l l e l w i t h t h e i n t e r n a l 1 0 k w r e s i s t o r . t h e t r a d e o f f f o r u s i n g t h i s r e s i s t o r i s a n i n c r e a s e i n q u i e s c e n t c u r r e n t . i n 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 4 . 7 m f a n d a n e x t e r n a l 1 k w r e s i s t o r s h o u l d b e p l a c e d i n p a r a l l e l w i t h t h e i n t e r n a l 1 0 k w r e s i s - t o r 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 , s o 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 . w << w x150k c 1 ) x150k c ( 1 i bypass ) x150k 5x(c t bypass up start w = c l ) highpass ( c c r 2 1 f p =
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 - o c t . , 2 0 1 0 a p a 2 0 7 0 w w w . a n p e c . c o m . t w 1 9 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 . ) ( 1 0 ) ( 1 1 ) ( 1 2 ) 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 . 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 : t a b l e 1 i s f o r c a l c u l a t i n g e f f i c i e n c i e s f o r f o u r 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 . ( 1 3 ) n o t e t h a t 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 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 . i n a d d i t i o n , 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 s t e r e o 1 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 3 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 , 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 t h e 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 , u s e t h e e f f i c i e n c y a n a l y s i s 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 . po (w) efficiency (%) i dd (a) v pp (v) p d (w) 0.25 31. 25 0.16 2.00 0.55 0.50 47.62 0.21 2.83 0.55 1.00 66.67 0.30 4.00 0.5 1.25 78.13 0.32 4.47 0. 35 * * 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 5 - v / 8 w b t l s y s - t e m s 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 , p o w e r d i s s i p a t i o n i s t h e m a j o r c o n c e r n . e q u a t i o n ( 1 4 ) 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 . ( 1 4 ) 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 . ( 1 5 ) ( 1 6 ) s i n c e t h e a p a 2 0 7 0 i s a d u a l 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 2 t i m e s t h a t b o t h o f e q u a t i o n s d e p e n d o n t h e m o d e o f o p e r a t i o n . e v e n w i t h t h i s s u b s t a n t i a l i n c r e a s e i n p o w e r d i s s i p a t i o n , t h e a p a 2 0 7 0 d o e s n o t r e q u i r e e x t r a h e a t s i n k . 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 4 ) , 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 6 ) : 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 t h e a p a 2 0 7 0 i s 1 5 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 6 . f o r d i p - 1 6 / d i p - 1 6 a 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 4 5 o c / w . l 2 p l 2 rms , o o r 2 v r v p = = sup o p p efficiency = 2 v v p rms , o = l p dd avg , dd dd sup r v 2 v i v p p = = dd p l p dd l 2 p sup o 4v v r v 2 v r 2 v p p p = p = l 2 2 dd max d, r 2 v = p : mode se p l 2 2 dd max d, r 2 4v = p : mode btl p ja a max j, max d, t - t p q =
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 - o c t . , 2 0 1 0 a p a 2 0 7 0 w w w . a n p e c . c o m . t w 2 0 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 . ) 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 . t h e r m a l c o n s i d e r a t i o n l i n e a r p o w e r a m p l i f i e r s d i s s i p a t e a s i g n i f i c a n t a m o u n t o f h e a t i n t h e p a c k a g e u n d e r n o r m a l o p e r a t i n g c o n d i t i o n s . t h e f i r s t c o n s i d e r a t i o n t o c a l c u l a t e m a x i m u m a m b i e n t t e m p e r a t u r e s i s t h e n u m b e r s f r o m t h e 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 g r a p h s a r e p e r c h a n n e l v a l u e s , s o t h e d i s s i p a t i o n o f t h e i c h e a t n e e d s t o b e d o u b l e d f o r t w o - c h a n n e l o p e r a t i o n . g i v e n q j a , t h e m a x i m u m a l l o w - a b l e j u n c t i o n t e m p e r a t u r e ( t j m a x ) , a n d t h e t o t a l i n t e r n a l d i s s i p a t i o n ( p d ) , t h e m a x i m u m a m b i e n t t e m p e r a t u r e c a n b e c a l c u l a t e d w i t h t h e f o l l o w i n g e q u a t i o n . t h e m a x i m u m r e c o m m e n d e d j u n c t i o n t e m p e r a t u r e f o r t h e a p a 2 0 7 0 i s 1 5 0 c . t h e i n t e r n a l d i s s i p a t i o n f i g u r e s a r e t a k e n f r o m t h e 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 g r a p h s . t a m a x = t j m a x - q j a p d ( 1 6 ) 1 5 0 - 4 5 ( 0 . 8 * 2 ) = 7 8 c t h e a p a 2 0 7 0 i s d e s i g n e d w i t h a 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 t h a t t u r n s t h e d e v i c e o f f 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 s u r p a s s e s 1 5 0 c t o p r e v e n t d a m a g i n g t h e i c . l a y o u t c o n s i d e r a t i o n figure 5: apa 2070 land pattern recommendation 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 7 0 . 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 7 0 ? 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 7 0 ? 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 7 0 ? 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 . 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 b e g r e a t e r t h a n 5 0 m i l . 5 . t h e a p a 2 0 7 0 ? s g n d p i n s h o u l d b e s o l d e r e d o n t h e g r o u n d p l a n e o f t h e p c b . 16mm 20mm 3mm 4mm ground plane for gnd pin via diameter =0.3mm x 24
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 - o c t . , 2 0 1 0 a p a 2 0 7 0 w w w . a n p e c . c o m . t w 2 1 p a c k a g e i n f o r m a t i o n d i p - 1 6 note : 1. followed from jedec ms-001ab 2. dimension d, d1 and e1 do not include mold flash or protrusions. mold flash or protrusions shall not exceed 10 mil. s y m b o l min. max. 5.33 0.38 0.36 0.56 1.14 1.78 0.20 0.35 18.6 20.31 0.13 2.92 3.81 a a1 b b2 c d d1 e e1 e ea millimeters a2 2.92 4.95 2.54 bsc dip-16 7.62 8.26 6.10 7.11 eb l 10.92 7.62 bsc min. max. inches 0.210 0.015 0.100 bsc 0.300 bsc 0.115 0.195 0.014 0.022 0.045 0.070 0.008 0.014 0.732 0.800 0.005 0.300 0.325 0.240 0.280 0.430 0.115 0.150 d e 1 0 . 3 8 c ea eb e a 2 a 1 a l b b2 e d1
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 - o c t . , 2 0 1 0 a p a 2 0 7 0 w w w . a n p e c . c o m . t w 2 2 p a c k a g e i n f o r m a t i o n d i p - 1 6 a d1 b2 b e a 2 a a 1 l eb ea c e 0 . 3 8 s y m b o l min. max. 5.33 0.38 0.36 0.56 1.14 1.78 0.20 0.35 18.6 20.31 0.13 2.92 3.81 a a1 b b2 c d d1 e e1 e ea millimeters a2 2.92 4.95 2.54 bsc dip-16a 7.62 8.26 6.10 7.11 eb l 10.92 7.62 bsc min. max. inches 0.210 0.015 0.100 bsc 0.300 bsc 0.115 0.195 0.014 0.022 0.045 0.070 0.008 0.014 0.732 0.800 0.005 0.300 0.325 0.240 0.280 0.430 0.115 0.150 note : 1. followed from jedec ms-001ab 2. dimension d, d1 and e1 do not include mold flash or protrusions. mold flash or protrusions shall not exceed 10 mil. d e 1
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 - o c t . , 2 0 1 0 a p a 2 0 7 0 w w w . a n p e c . c o m . t w 2 3 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
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 - o c t . , 2 0 1 0 a p a 2 0 7 0 w w w . a n p e c . c o m . t w 2 4 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 . ) 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 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

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