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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 . 8 - m a y . , 2 0 1 2 a p a 2 0 6 8 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 l o w o p e r a t i n g c u r r e n t w i t h 9 m a i m p r o v e d 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 t u r n - o n a n d t u r n - o f f t r a n s i e n t s i n o u t p u t s h i g h p s r r 3 2 s t e p s v o l u m e a d j u s t a b l e b y d c v o l t a g e w i t h h y s t e r e s i s 2 . 6 w p e r c h a n n e l o u t p u t p o w e r i n t o 4 w l o a d a t 5 v , b t l m o d e t w o o u t p u t m o d e s a l l o w a b l e w i t h b t l a n d s e m o d e s s e l e c t e d b y s e / b t l p i n l o w c u r r e n t c o n s u m p t i o n i n s h u t d o w n m o d e ( 1 m a ) s h o r t - c i r c u i t p r o t e c t i o n 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 m a x i m u m o u t p u t s w i n g c l a m p i n g f u n c t i o n t h e o u t + s i g n a l a n d t h e i n - s i g n a l a r e o u t p h a s e s o p - 1 6 p p a c k a g e s w i t h t h e r m a l p a d p a c k a g e l e a d f r e e a n d g r e e n d e v i c e s a v a i l a b l e ( r o h s c o m p l i a n t ) 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 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 p a 2 0 6 8 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 ( 1 . 8 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 6 8 i s f r o m 2 0 d b ( d c _ v o l = 0 v ) t o - 8 0 d b ( d c _ v o l = 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 o f 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 a p a 2 0 6 8 , 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 f r o m 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 , a p a 2 0 6 8 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 s ( 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 . n b s l c d m o n i t o r o r t v s 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 ) . apa2068 handling code temperature range package code package code ka : sop-16p operating ambient temperature range i : - 40 to 85 o c handling code tr : tape & reel assembly material l : lead free device g : halogen and lead free device apa2068 ka : apa2068 xxxxx xxxxx - date code assembly material
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 . 8 - m a y . , 2 0 1 2 a p a 2 0 6 8 w w w . a n p e c . c o m . t w 2 symbol parameter rating unit v dd supply voltage range - 0.3 to 6 v v in input voltage range, se/btl, shutdown, mute - 0.3 to v dd +0.3 v t j maximum junction temperature 150 c t stg storage temperature range - 65 to +150 c t s dr maximum lead soldering temp erature,10 s econds 260 c p d power dissipation internal limited w symbol parameter typical value unit q ja thermal resistance from junction to ambient (note 2) sop - 16p 45 c /w q jc thermal resistance from junction to case (note 3) sop - 16p 10 c /w range symbol parameter min. max. unit v dd supply voltage 4.5 5.5 v t a operating ambient temperature range - 40 85 c t j operating junction temperature - 125 c shutdown , mute 2 - v ih high l evel t hreshold v oltage se/btl 4 - v ( 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 . ) 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 ) 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 p i n c o n f i g u r a t i o n note1: stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. these are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated under "recom- mended operating conditions" is not implied. exposure to absolute maximum rating conditions for extended periods may affect device reliability. note 2: the thermal-pad on the bottom of the ic should soldered directly to the pcb?s thermal-pad area that with several thermal vias connect to the ground plan, and the pcb is a 2-layer, 5-inch square area with 2oz copper thickness . note 3: the case temperature is measured at the center of the thermal-pad on the underside of the sop-16p package. bypass 4 13 se/btl volmax 8 gnd 5 15 vdd lin- 6 12 gnd shutdown 2 14 rout+ rin- 3 16 rout- 11 lout+ 10 vdd volume 7 mute 1 9 lout- apa2068 = thermal pad (connected to gnd for better heat dissipation)
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 . 8 - m a y . , 2 0 1 2 a p a 2 0 6 8 w w w . a n p e c . c o m . t w 3 range symbol parameter min. max. unit shutdown, mute - 1.0 v il low l evel t hreshold v oltage se/btl - 1 v v icm common m ode i nput v oltage v dd - 1.0 - 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 ( c o n t . ) apa20 68 symbol parameter test condition s min. typ. max. unit se/btl=0v - 9 2 0 i dd supply current se/btl=5v - 4 1 0 ma i sd supply current in shutdown mode se/btl= 0 v shutdown=0v - 1 - m a i ih high i nput current - 900 - na i il low input curren t - 900 - na v os output differential voltage - 5 - mv t start - up start - up time from shutdown bypass capacitor, c b =2.2 m f - 1 - s apa20 68 symbol parameter test condition s min. typ. max. unit thd +n =10%, r l =3 w , f in = 1 k hz - 2. 9 - 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 - t hd +n =1%, r l = 4 w , f in = 1 k hz - 1. 8 - p o maximum output power thd +n =1%, r l = 8 w , f in = 1 k hz 1 1. 3 - w p o = 1. 2 w, r l = 4 w , f in = 1 k hz - 0.07 - thd+n total harmonic distortion plus noise p o = 0.9 w, r l = 8 w , f in = 1 k hz - 0.08 - % psrr power ripple rejection ratio v rr = 0.1vrms, r l = 8 w , c b = 1 m f, f in = 120hz - 60 - db cross talk channel separation c b = 1 m f, r l = 8 w , f in = 1 k hz - 90 - db s/n signal to noise ratio p o = 1.1w, r l = 8 w , a _w eighting - 95 - db 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 o p e r a t i n g c h a r a c t e r i s t i c s , b t l m o d e v d d = 5 v , t a = 2 5 c , r l = 4 w , g a i n = 2 v / v ( 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 ) apa20 68 symbol parameter test condition s min. typ. max. unit 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 - 1 2 0 - thd +n = 1%, r l = 16 w , f in = 1 k hz - 160 - p o maximum output power thd +n = 1%, r l = 32 w , f in = 1 k hz - 9 5 - mw 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 e m o d e . v d d = 5 v , t a = 2 5 c , g a i n = 1 v / v ( u n l e s s o t h e r w i s e n o t 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 . 8 - m a y . , 2 0 1 2 a p a 2 0 6 8 w w w . a n p e c . c o m . t w 4 pin no. name i/o function 1 mute i mute control signal input, hold low for normal operation, hold high to mute. 2 shutdown i it will be into shutdown mode when pull low. i sd = 1 m a 3 rin - i right channel input terminal 4 bypass i bias voltage generat or 5,12 gnd - ground connection, connected to thermal pad. 6 lin - i left channel input terminal 7 volume i input signal for internal volume gain setting. 8 volmax i setting the maximum output swing. input a non - zero voltage (v c ) to this pin, the output voltage swing will be clamped between v oh (the maximum positive v alue ) - v c & v ol (the minimum negative v alue ) + v c . disable this function when tie this pin to gnd. maximum input voltage 1/2 v dd . 9 lout - o left channel negative output in btl mode and h igh impedance in se mode. 10,15 vdd - supply voltage 11 lout+ o left channel positive output in btl mode and se mode. 13 se/btl i output mode control input, high for se output mode and low for btl mode. 14 rout+ o right channel positive output in btl mode and se mode. 16 rout - o right channel negative output in btl mode and high impedance in se mode. p i n d e s c r i p t i o n shutdown mute se/btl operating m ode l x x shutdown mode h l l btl out h l h se out h h x mute c o n t r o l i n p u t t a b l e apa20 68 symbol parameter test condition s min. typ. max. unit p o = 125mw, r l = 16 w , f in = 1 k hz - 0.09 - thd+n total harmonic distortion plus noise p o = 65mw, r l = 32 w , f in = 1 k hz - 0.09 - % psrr power ripple rejection ratio v in = 0.1vrms, r l = 8 w , c b = 1 m f, f in = 120hz - 60 - db cross talk channel separation c b = 1 m f, r l = 32 w , f in = 1 k hz - 60 - db s/n signal to noise ratio p o = 75mw, se, r l = 32 w , a_ w eight ing - 100 - db 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 . ) 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 e m o d e . v d d = 5 v , t a = 2 5 c , g a i n = 1 v / v ( u n l e s s o t h e r w i s e n o t 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 . 8 - m a y . , 2 0 1 2 a p a 2 0 6 8 w w w . a n p e c . c o m . t w 5 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 b l o c k d i a g r a m se/btl signal 4 w 4 w ring headphone jack sleeve control pin tip se/btl signal 1 m f 220 m f 220 m f 1k w 1k w r-ch input v dd 100k w shutdown signal 1 m f l-ch input v dd vdd gnd 100 m f 0.1 m f 100k w shutdown ckt se/btl lout+ lout- lin- btl shutdown bypass mute mute volume control volume a2068_appckt rout+ rin- bypass rout- volmax mute signal v dd 50k w volmax signal 2.2 m f se/ c b shutdown ckt power and depop circuit se/btl lout + lout- lin- se/btl shutdown bypass mute mute volume control volume apa2068_block rout+ rin- bypass rout- gnd vdd volmax
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 . 8 - m a y . , 2 0 1 2 a p a 2 0 6 8 w w w . a n p e c . c o m . t w 6 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 gain (db) high (v) low (v) hysteresis (mv) recommended voltage (v) 20 0.12 0.00 0 18 0.23 0.17 52 0.20 16 0.34 0.28 51 0.31 14 0.46 0.39 50 0.43 12 0.57 0.51 49 0.54 10 0.69 0.62 47 0.65 8 0.80 0.73 46 0.77 6 0.91 0.84 45 0.88 4 1.03 0.96 44 0.99 2 1.14 1.07 43 1.10 0 1.25 1.18 41 1.22 - 2 1.37 1.29 40 1.33 - 4 1.48 1.41 39 1.44 - 6 1.59 1.52 38 1.56 - 8 1.71 1.63 37 1.67 - 10 1.82 1.74 35 1.78 - 12 1.93 1.85 34 1.89 - 14 2.05 1.97 33 2.01 - 16 2.16 2.08 32 2.12 - 18 2.28 2.19 30 2.23 - 20 2.39 2.30 29 2.35 - 22 2.50 2.42 28 2.46 - 24 2.62 2.53 27 2.57 - 26 2.73 2.64 26 2.69 - 28 2.84 2.75 24 2.80 - 30 2.96 2.87 23 2.91 - 32 3.07 2.98 22 3.02 - 34 3.18 3.09 21 3.14 - 36 3.30 3.20 20 3.25 - 38 3.41 3.32 18 3.36 - 40 3.52 3.43 17 3.48 - 80 5.00 3.5 4 16 5 s u p p l y v o l t a g e v d d = 5 v
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 . 8 - m a y . , 2 0 1 2 a p a 2 0 6 8 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 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 =20db f in = 1khz btl 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 =14db f in = 1khz se r l = 32 w r l = 16 w 0.05 10 0.1 1 10m 5 100m 1 v dd = 5v a v =20db r l =3 w btl f in = 20khz f in = 20hz f in = 1khz 0.01 10 0.1 1 0 3.5 0.5 1 1.5 2 2.5 3 v dd = 5v f in =1khz r l =3 w btl a v = 20db a v = 6db 0.01 10 0.1 1 20 20k 100 1k 10k v dd = 5v r l =3 w p o = 1.8w btl a v = 20db a v = 6db 0.01 10 0.1 1 20 20k 100 1k 10k v dd = 5v a v = 6db r l =3 w btl p o = 0.9w p o = 1.8w
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 . 8 - m a y . , 2 0 1 2 a p a 2 0 6 8 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 . ) 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 20 20k 100 1k 10k v dd = 5v r l =4 w p o =1.5w btl a v = 20db 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 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 = 20db a v = 6db v dd = 5v f in = 1khz r l =8 w btl 0.01 10 0.1 1 10m 5 100m 1 f in = 20khz f in = 20hz f in = 1khz v dd = 5v a v = 20db r l =8 w btl 0.01 10 0.1 1 0 3.5 0.5 1 1.5 2 2.5 3 v dd = 5v f in =1khz r l =4 w btl a v = 20db a v = 6db 0.01 10 0.1 1 10m 5 100m 1 v dd = 5v a v =20db r l =4 w btl f in = 20khz f in = 20hz f in = 1khz
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 . 8 - m a y . , 2 0 1 2 a p a 2 0 6 8 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 . ) 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 p o = 0.9w 0.01 10 0.1 1 20 20k 100 1k 10k a v = 6db a v = 20db v dd =5v r l =8 w p o =0.9w btl 0.01 10 0.1 1 0 240m 40m 80m 120m 160m 200m v dd =5v f in =1khz r l =16 w se a v = 0db a v = 14db 0.01 10 0.1 1 10m 300m 50m 100m 200m v dd =5v a v =14db r l =16 w c o =1000 m f se 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 a v = 0db 1 a v = 14db 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 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 . 8 - m a y . , 2 0 1 2 a p a 2 0 6 8 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 . ) 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 ) gain(db) gain(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 ) 0.01 10 0.1 1 0 240m 40m 80m 120m 160m 200m v dd =5v f in =1khz r l =32 w se a v = 0db a v = 14db 0.01 10 0.1 1 10m 300m 50m 100m 200m v dd =5v a v =14db r l =32 w c o =1000 m f se f in = 20hz f in = 1khz f in = 20khz phase (degrees) phase (degrees) 0.01 10 0.1 1 20 20k 100 1k 10k v dd =5v a v =14db r l =32 w c o =1000 m f se p o = 65m w p o = 30m w 0.01 10 0.1 1 20 20k 100 1k 10k v dd =5v r l =32 w p o =65mw c o =1000 m f se a v = 0db a v = 14db +160 +330 +170 +180 +190 +300 +310 +320 +0 +20 +4 +8 +12 +16 10 200k 100 1k 10k 100k phase( 6db) gain( 20db) gain( 6db) phase( 20db) v dd =5v r l =4 w p o =0.8w btl +160 +330 +170 +180 +190 +300 +310 +320 +0 +20 +4 +8 +12 +16 10 200k 100 1k 10k 100k gain( 20db) phase( 20db) phase( 6db) gain( 6db) v dd =5v r l =8 w p o =0.5w btl
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 . 8 - m a y . , 2 0 1 2 a p a 2 0 6 8 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 . ) 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 ) gain(db) gain(db) crosstalk(db) crosstalk(db) -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 =0.9 w btl 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 =1.5 w btl phase (degrees) phase (degrees) -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 -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 right to left left to right +120 +300 +140 +160 +180 +200 +220 +240 +260 +280 -10 +14 -6 -2 +2 +6 +10 20 200k 100 1k 10k 100k gain(14db) phase(14db) v dd =5v r l =16 w c o =1000 m f p o =60mw se gain(0db) phase(0db) +165 +220 +170 +180 +190 +200 +210 -10 +14 -6 -2 +2 +6 +10 20 200k 100 1k 10k 100k gain(14db) gain(0db) phase(14db) phase(0db) v dd =5v r l =32 w c o =1000 m f p o =30mw se
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 . 8 - m a y . , 2 0 1 2 a p a 2 0 6 8 w w w . a n p e c . c o m . t w 1 2 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(v) output noise voltage(v) psrr(db) psrr(db) 1 m 100 m 10 m 20 m 20 20k 100 1k 10k v dd =5v a v =6db r l =4 w btl 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 -100 +0 -90 -80 -70 -60 -50 -40 -30 -20 -10 20 20k 100 1k 10k v dd =5v r l =4 w v rr =200mv a v =20db btl -100 +0 -90 -80 -70 -60 -50 -40 -30 -20 -10 20 20k 100 1k 10k v dd =5v r l =32 w v rr =200mv a v =14db se -130 +0 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 20 20k 100 1k 10k t v dd =5v r l =8 w v in =1vrms a v =6db btl -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 =1v rms a v =6db btl
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 . 8 - m a y . , 2 0 1 2 a p a 2 0 6 8 w w w . a n p e c . c o m . t w 1 3 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 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(mw) power dissipation(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 o u t p u t p o w e r ( w ) o u t p u t p o w e r ( w ) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 0.00 0.50 1.00 1.50 2.00 2.50 r l =3 w r l =4 w r l =8 w v dd =5v thd+n<1% btl 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 thd+n<1% se
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 . 8 - m a y . , 2 0 1 2 a p a 2 0 6 8 w w w . a n p e c . c o m . t w 1 4 i n s i d e o f t h e a p a 2 0 6 8 , t w o s e p a r a t e a m p l i f i e r s d r i v e o u t + a n d o u t - ( 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 - a n d r o u t - . 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 6 8 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 6 8 a s s e d r i v e r f r o m o u t + . 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 a p p l i c a t i o n c i r c u i t . vbias circuit out+ out- rl op1 op2 volume control amplifier output signal a p p l i c a t i o n i n f o r m a t i o n f i g u r e 1 : a p a 2 0 6 8 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 ) c b x 1 5 0 k w 1 1 r i c i << 1 r l c c ( 1 ) b t l o p e r a t i o n t h e a p a 2 0 6 8 o u t p u t s t a g e ( p o w e r a m p l i f i e r ) h a s t w o p a i r s o f o p e r a t i o n a l a m p l i f i e r s i n t e r n a l l y , w h i c h a l l o w s d i f f e r e n t a m p l i f i e r c o n f i g u r a t i o n s . 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 + a n d o u t - , 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 l 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 6 8 , 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 + , r o u t - , l o u t + , a n d l o u t - , 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 s i n g l e - e n d e d o p e r a t i o n o u t p u t s e / b t l o p e r a t i o n t h e b e s t c o s t s a v i n g f e a t u r e o f a p a 2 0 6 8 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 . 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 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 : 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 .
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 . 8 - m a y . , 2 0 1 2 a p a 2 0 6 8 w w w . a n p e c . c o m . t w 1 5 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 t h e a p a 2 0 6 8 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 6 8 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 2 0 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 . 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 a n d e n a b l e s t h e s e m o d e . w h e n t h e i n p u t g o e s h i g h , t h e o u t - a m p l i f i e r i s s h u t d o w n c a u s i n g t h e s p e a k e r t o m u t e . t h e o u t + 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 ( c o ) 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 n e c t e d f r o m t h e s i g n a l p i n , t h e v o l t a g e d i v i d e r 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 p u l l s 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 . o u t p u t s e / b t l o p e r a t i o n ( c o n t . ) f i g u r e 3 : g a i n s e t t i n g v s . v o l u m e p i n v o l t a g e ( 3 ) ( 2 ) v o l u m e c o n t r o l f u n c t i o n -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 dc volume (v) g a i n ( d b ) backward forward apa2068 dc volume control curve (btl) 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 2 d b / s t e p f r o m 2 0 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 . 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 6 8 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 6 8 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 1 0 k w w h e n g a i n s e t t i n g i s 2 0 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 2 0 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 . i f v r r a gain se - = = i f r r -2 gain btl = ring headphone jack sleeve control pin tip 1k w v dd 100k w se/btl 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 . )
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 . 8 - m a y . , 2 0 1 2 a p a 2 0 6 8 w w w . a n p e c . c o m . t w 1 6 a p p l i c a t i o n i n f o r m a t i o n ( c o n t . ) f i g u r e 4 : i n p u t r e s i s t a n c e v s . g a i n s e t t i n g ( 4 ) ( 5 ) i n p u t r e s i s t a n c e , r i ( c o n t . ) ( 6 ) 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 ( 2 5 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 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 2 5 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 a s b e l o w : w h e n t h e i n p u t r e s i s t a n c e v a r i a t i o n i s c o n s i d e r e d , t h e c i i s 0 . 1 3 m f , t h e r e f o r e , a v a l u e i n t h e r a n g e o f 0 . 3 3 m f t o 1 . 0 m f w o u l d b e c h o s e n . a f u r t h e r c o n s i d e r a t i o n f o r t h i s c a p a c i t o r i s t h e l e a k a g e p a t h f r o m t h e i n p u t s o u r c e t h r o u g h t h e i n p u t n e t w o r k ( r i + r f , c i ) t o t h e l o a d . t h i s l e a k a g e c u r r e n t c r e a t e s a d c o f f s e t v o l t a g e a t t h e i n p u t t o t h e a m p l i f i e r t h a t r e d u c e s u s e f u l h e a d r o o m , e s p e c i a l l y i n h i g h g a i n a p p l i c a t i o n s . f o r t h i s r e a s o n , a l o w - l e a k a g e t a n t a - l u m o r c e r a m i c c a p a c i t o r i s t h e b e s t c h o i c e . w h e n p o l a r - i z e d c a p a c i t o r s a r e u s e d , t h e p o s i t i v e s i d e o f t h e c a p a c i t o r s h o u l d f a c e t h e a m p l i f i e r i n p u t i n m o s t a p p l i c a t i o n s b e - c a u s e t h e d c l e v e l o f t h e a m p l i f i e r s ? i n p u t i s h e l d a t v d d / 2 . p l e a s e n o t e t h a t i t i s i m p o r t a n t t o c o n f i r m t h e c a p a c i t o r p o l a r i t y i n t h e a p p l i c a t i o n . 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 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 ) : 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 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 , a p a 2 0 6 8 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 : where i leakage =leakage current of c b therefore, it is recommended that c b ?s leakage current should be no more then 0.4 m a for properly work of apa2068. ( 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 the amplifier and the 150k w is the maximum input resis- tance of (r i +r f ). bypass capacitor, c b , values of 2.2 m f to 10 m f ceramic or tantalum low-esr capacitors are rec- ommended for the best thd+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 ) w = 150k i - 0.5v v leakage dd bypass i c c k 25 2 1 ) highpass ( f w p = c i f k 25 2 1 c w p = ) x150k 5x(c up tstart bypass w = 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 . ( 9 ) c l c c r 2 1 ) highpass ( f p = 0 20 40 60 80 100 120 140 160 -40 -30 -20 -10 0 10 20 r i vs. gain (btl) gain (btl) r i ( k w ) w << w x150k c 1 ) x150k c ( 1 i b
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 . 8 - m a y . , 2 0 1 2 a p a 2 0 6 8 w w w . a n p e c . c o m . t w 1 7 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 6 8 i s i n s h u t - d o w n m o d e . o n n o r m a l o p e r a t i n g , s h u t d o w n p i n p u l l 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 e n n o t i n u s e , t h e a p a 2 0 6 8 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 i s b e s t t o s w i t c h b e t w e e n t h e g r o u n d a n d t h e s u p p l y v 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 . 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 ( c o n t . ) 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 a n d 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 . 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 2 0 6 8 i s a h i g h - p e r f o r m a n c e c m o s a u d i o a m p l i - f i e r t h a t r e q u i r e s a d e q u a t e p o w e r s u p p l y d e c o u p l i n g t o e n s u r e t h e o u t p u t t o t a l h a r m o n i c d i s t o r t i o n ( t h d + n ) i s a s l o w a s p o s s i b l e . p o w e r s u p p l y d e c o u p l i n g a l s o p r e - v e n t s t h e o s c i l l a t i o n s b e i n g c a u s e d b y l o n g l e a d l e n g t h b e t w e e n t h e a m p l i f i e r a n d t h e s p e a k e r . t h e o p t i m u m d e c o u p l i n g i s a c h i e v e d b y u s i n g t w o d i f f e r e n t t y p e s o f c a p a c i t o r s t h a t t a r g e t o n d i f f e r e n t t y p e s o f n o i s e o n t h e p o w e r s u p p l y l e a d s . f o r h i g h e r f r e q u e n c y t r a n s i e n t s , s p i k e s , o r d i g i t a l h a s h o n t h e l i n e , a g o o d l o w e q u i v a l e n t - s e r i e s - r e s i s t a n c e ( e s r ) c e r a m i c c a p a c i t o r , t y p i c a l l y 0 . 1 m f , i s p l a c e d a s c l o s e a s p o s s i b l e t o t h e d e v i c e v d d 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 6 8 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 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 . s h u t d o w n f u n c t i 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 . m u t e f u n c t i o n t h e a p a 2 0 6 8 m u t e s t h e a m p l i f i e r o u t p u t s w h e n l o g i c h i g h i s a p p l i e d t o t h e m u t e p i n . a p p l y i n g l o g i c l o w t o t h e m u t e p i n r e t u r n s t h e a p a 2 0 6 8 t o n o r m a l o p e r a t i o n . p r e v e n t u n a n t i c i p a t e d m u t e b e h a v i o r b y c o n n e c t i n g t h e m u t e p i n t o l o g i c h i g h o r l o w . d o n o t l e t t h e m u t e p i n f l o a t . a p p l i c a t i o n i n f o r m a t i o n ( c o n t . )
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 . 8 - m a y . , 2 0 1 2 a p a 2 0 6 8 w w w . a n p e c . c o m . t w 1 8 ( 1 0 ) ( 1 1 ) ( 1 2 ) ( 1 3 ) m a x i m u m o u t p u t s w i n g c l a m p i n g f u n c t i o n ( v o l m a x ) t h e a p a 2 0 6 8 p r o v i d e s t h e m a x i m u m o u t p u t s w i n g c l a m p - i n g f u n c t i o n t o p r o t e c t t h e s p e a k e r . w h e n i n p u t a n o n - z e r o v o l t a g e ( v x ) t o v o l m a x p i n , b t l m o d e o u t p u t a m p l i t u d e ( v o p ) i s b e l i m i t e d a t v o p = v d d - 2 v x . s e m o d e o u t p u t a m p l i t u d e ( v o p ) i s b e l i m i t e d a t v o p = 1 / 2 v d d - 2 v x . t h i s f u n c t i o n c a n e f f e c t i v e l y l i m i t e t h e o u t p u t p o w e r a c r o s s t h e s p e a k e r a n d a v o i d d a m a g i n g t h e s p e a k e r . t h e m a x i m u m s e t t i n g v o l t a g e o f v o l m a x i s v d d / 2 , a n d w h e n t h i s f u n c t i o n i s n o t u s e d , c o n n e c t t h e v o l m a x t o t h e g n d . 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 c a l c u l a t e s 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 . 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 . 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 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 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 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 . table 1 : efficiency vs. output power in 5 - v/8 w btl systems . 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 . 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 . sup p 1 efficiency = 2 v v p orms = l p p l orms orms o r 2 ) v v ( r v v p = = l p dd ddsvg dd sup r v 2 v l v p 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 2 2 dd max d, r 2 v = p : mode se p 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 5 ) s i n c e t h e a p a 2 0 6 8 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 6 8 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 : l 2 2 dd max d, r 2 4v = p : mode btl p ( 1 6 ) ja a max j, max d, t - t p q = 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 .
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 . 8 - m a y . , 2 0 1 2 a p a 2 0 6 8 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 . ) p o w e r d i s s i p a t i o n ( c o n t . ) 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 2 0 6 8 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 . 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 p a d c o n s i d e r a t i o n t h e t h e r m a l p a d m u s t b e c o n n e c t e d t o t h e g r o u n d . t h e p a c k a g e w i t h t h e r m a l p a d o f t h e a p a 2 0 6 8 r e q u i r e s s p e - c i a l a t t e n t i o n o n t h e r m a l d e s i g n . i f t h e t h e r m a l d e s i g n i s s u e s a r e n o t p r o p e r l y a d d r e s s e d , t h e a p a 2 0 6 8 4 w w i l l g o i n t o t h e r m a l s h u t d o w n w h e n d r i v i n g a 4 w l o a d . t h e t h e r m a l p a d o n t h e b o t t o m o f t h e a p a 2 0 6 8 s h o u l d b e s o l d e r e d d o w n t o a c o p p e r p a d o n t h e c i r c u i t b o a r d . h e a t c a n b e c o n d u c t e d a w a y f r o m t h e t h e r m a l p a d t h r o u g h t h e c o p p e r p l a n e t o a m b i e n t . i f t h e c o p p e r p l a n e i s n o t o n t h e t o p s u r f a c e o f t h e c i r c u i t b o a r d , 8 t o 1 0 v i a s o f 1 3 m i l o r s m a l l e r i n d i a m e t e r s h o u l d b e u s e d t o t h e r m a l l y c o u p l e t h e t h e r m a l p a d t o t h e b o t t o m p l a n e . f o r g o o d t h e r m a l c o n d u c t i o n , t h e v i a s m u s t b e p l a t e d t h r o u g h a n d s o l d e r f i l l e d . t h e c o p p e r p l a n e u s e d t o c o n - d u c t h e a t a w a y f r o m t h e t h e r m a l p a d s h o u l d b e a s l a r g e a s p r a c t i c a l . i f t h e a m b i e n t t e m p e r a t u r e i s h i g h e r t h a n 2 5 c , a l a r g e r c o p p e r p l a n e o r f o r c e d - a i r c o o l i n g w i l l b e r e q u i r e d t o k e e p t h e a p a 2 0 6 8 j u n c t i o n t e m p e r a t u r e b e l o w t h e t h e r m a l s h u t d o w n t e m p e r a t u r e ( 1 5 0 c ) . i n h i g h e r a m b i e n t t e m p e r a t u r e , h i g h e r a i r f l o w r a t e a n d / o r l a r g e r c o p p e r a r e a w i l l b e r e q u i r e d t o k e e p t h e i c o u t o f t h e r m a l s h u t d o w n . 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 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 , f i r s t c o n - s i d e r a t i o n i s t h a t 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 6 8 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 6 8 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 . f o r s o p 1 6 - p p a c k a g e w i t h t h e r m a l p a d , 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 .
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 . 8 - m a y . , 2 0 1 2 a p a 2 0 6 8 w w w . a n p e c . c o m . t w 2 0 p a c k a g e i n f o r m a t i o n s o p - 1 6 p d e e 1 e b exposed pad d1 e 2 h x 4 5 o c see view a a a 1 a 2 0 l view a 0 . 2 5 seating plane gauge plane note : 1. follow from jedec ms-012 bc. 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. max. 0.069 0.006 0.050 0.020 0.010 0.020 2.00 3.50 0.31 0.17 0.25 0.40 e l h d1 e1 e2 e d c b 0.050 bsc 1.27 bsc 0.50 1.27 8 o 0.016 0.010 0.25 0.51 0.138 0.079 0.007 0.012 1.25 0.00 min. millimeters s y m b o l a2 a1 a sop-16p max. 1.75 0.15 min. 0.000 0.049 inches 4.50 3.00 0.177 0.118 0 o 8 o 0.394 0.386 0.150 0.157 0.244 0.228 9.80 10.00 3.80 4.00 5.80 6.20 0 o 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 . 8 - m a y . , 2 0 1 2 a p a 2 0 6 8 w w w . a n p e c . c o m . t w 2 1 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 h t1 a d a e 1 a b w f t p0 od0 b a0 p2 k0 b 0 section b-b section a-a od1 p1 application a h t1 c d d w e1 f 330.0 ? 2.00 50 min. 16.4+2.00 - 0.00 13.0+0.50 - 0.20 1.5 min. 20.2 min. 16.0 ? 0.30 1.75 ? 0.10 7.5 ? 0.10 p 0 p1 p 2 d 0 d1 t a 0 b 0 k 0 sop - 16 p 4.0 ? 0.10 8.0 ? 0.10 2.0 ? 0.10 1.5+0.10 - 0.00 1.5 min. 0.6+0.00 - 0. 40 6.40 ? 0.20 10.30 ? 0.20 2.10 ? 0.20 (mm) package type unit quantity sop - 16 p tape & reel 2500 d e v i c e s p e r u n i t
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 . 8 - m a y . , 2 0 1 2 a p a 2 0 6 8 w w w . a n p e c . c o m . t w 2 2 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 sop-16p user direction of feed 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 . 8 - m a y . , 2 0 1 2 a p a 2 0 6 8 w w w . a n p e c . c o m . t w 2 3 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. 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 @ 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, a115 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 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 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 . 8 - m a y . , 2 0 1 2 a p a 2 0 6 8 w w w . a n p e c . c o m . t w 2 4 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

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