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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 . 3 - m a y . , 2 0 0 9 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 . 270mw stereo cap-free headphone driver a p a 2 1 7 6 / 2 1 7 6 a f e a t u r e s g e n e r a l d e s c r i p t i o n a p p l i c a t i o n s headsets pdas portable multimedia devices notebooks 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 n o o u t p u t c a p a c i t o r r e q u i r e d dual supply voltage (pv dd >v dd ) ? v d d = 1 . 8 ~ 4 . 5 v ? pv dd =2.2 ~ 5.5v meeting vista requirements o u t p u t p o w e r a t 1 % t h d + n - 2 0 0 m w , a t v d d = 3 . 3 v , p v d d = 5 . 0 v , r l = 1 6 w - 5 5 m w , a t v d d = 1 . 8 v , p v d d = 3 . 0 v , r l = 1 6 w a t 1 0 % t h d + n - 2 7 0 m w , a t v d d = 3 . 3 v , p v d d = 5 . 0 v , r l = 1 6 w - 7 0 m w , a t v d d = 1 . 8 v , p v d d = 3 . 0 v , r l = 1 6 w l e s s e x t e r n a l c o m p o n e n t s r e q u i r e d h i g h p s r r : 8 0 d b a t 2 1 7 h z fast start-up time : 120 m s s h o r t - c i r c u i t a n d t h e r m a l p r o t e c t i o n s u r f a c e - m o u n t p a c k a g e ? t q f n 4 x 4 - 2 0 b ( w i t h e n h a n c e d t h e r m a l p a d ) ? t s s o p - 1 6 ? t q f n 3 x 3 - 1 6 ( w i t h e n h a n c e d t h e r m a l p a d ) ( f o r a p a 2 1 7 6 a ) 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 ) t h e a p a 2 1 7 6 / 2 1 7 6 a i s a s t e r e o , f i x e d g a i n , a n d c a p - f r e e h e a d p h o n e d r i v e r w h i c h i s a v a i l a b l e i n a t q f n 4 x 4 2 0 - p i n , t q f n 3 x 3 1 6 - p i n ( a p a 2 1 7 6 a ) o r t s s o p - 1 6 p a c k a g e . d u a l s u p p l y v o l t a g e p r o v i d e s h i g h e r e f f i c i e n c y a n d b e t t e r p o w e r r i p p l e r e j e c t i o n . the apa2176/2176a is designed with ground-reference o u t p u t a n d n o n e e d t h e o u t p u t c a p a c i t o r s f o r d c b l o c k i n g . t h e a d v a n t a g e s o f e l i m i n a t i n g t h e o u t p u t c a p a c i t o r a r e s a v i n g t h e c o s t , p c b ? s s p a c e , a n d c o m p o n e n t h e i g h t . t h e b u i l t - i n g a i n s e t t i n g c a n m i n i m i z e t h e e x t e r n a l c o m - p o n e n t c o u n t s a n d s a v e t h e p c b s p a c e . h i g h p s r r p r o - v i d e s i n c r e a s e d i m m u n i t y t o n o i s e a n d r f r e c t i f i c a t i o n . i n a d d i t i o n t o t h e s e f e a t u r e s , a f a s t s t a r t - u p t i m e a n d s m a l l p a c k a g e s i z e m a k e t h e a p a 2 1 7 6 / 2 1 7 6 a a n i d e a l c h o i c e f o r p o r t a b l e m u l t i m e d i a d e v i c e s . m o r e o v e r , t h e a p a 2 1 7 6 / 2 1 7 6 a i s a l s o e q u i p p e d o t h e r f e a t u r e s . f o r e x a m p l e , a t t h d + n = 1 % , i t i s c a p a b l e o f d r i v i n g 2 0 0 m w a t v d d = 3 . 3 v , p v d d = 5 . 0 v i n t o 1 6 w . i n a d d i t i o n , i t p r o v i d e s t h e r m a l a n d s h o r t c i r c u i t p r o t e c t i o n s . stereo headphone rout rin rsd lin lout lsd r-ch input l-ch input shutdown control apa2176/2176a
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 . 3 - m a y . , 2 0 0 9 w w w . a n p e c . c o m . t w 2 a p a 2 1 7 6 / 2 1 7 6 a 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 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 c 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 ) . apa 2176 handling code temperature range package code package code qb : tqfn4x4-20b o : tssop-16 qb : tqfn3x3-16 (apa2176a) operating ambient temperature range i : -40 to 85 o c handling code tr : tape & reel assembly material g : halogen and lead free device xxxxx - date code assembly material apa2176 apa2176 xxxxx apa2176 xxxxx apa 2176a xxxxx - date code apa2176 xxxxx - date code apa2176a apa 2176a xxxxx qb : qb : o : apa2176a top view 5 c v s s 6 v s s 7 l o u t 8 v d d c p + 1 p g n d 2 c p - 3 n c 4 9 r o u t 1 0 l i n 1 1 r s d 1 2 r i n nc 13 gnd 14 lsd 15 pvdd 16 tqfn3x3-16 tqfn4x4-20b apa2176 top view 6 n c 7 v s s 8 n c 9 l o u t 1 0 v d d c p + 1 p g n d 2 c p - 3 n c 4 c v s s 5 1 1 r o u t 1 2 n c 1 3 l i n 1 4 r s d 1 5 r i n gnd 17 lsd 18 pvdd 19 nc 20 nc 16 =thermal pad (connected the thermal pad to ground plane for better heat dissipation) pvdd 2 n c 3 c p + 4 p g n d 5 c p - 6 c v s s 7 v s s 8 9 l o u t 1 0 v d d 11 rout 12 lin 13 rsd 14 rin 15 gnd 16 lsd n c 1 tssop-16 apa2176 top view
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 . 3 - m a y . , 2 0 0 9 w w w . a n p e c . c o m . t w 3 a p a 2 1 7 6 / 2 1 7 6 a a b s o l u t e m a x i m u m r a t i n g s ( n o t e 1 ) symbol parameter rating unit v dd supply voltage ( vdd to gnd ) - 0.3 to 5.5 v pv dd charge pump supply voltage ( pvdd to pgnd ) - 0.3 to 5.5 v v pgnd _ gnd pgnd to gnd voltage - 0.3 to 0.3 v v rsd , v lsd input voltage (rsd and lsd to gnd ) - 0.3 to v dd +0.3 v v ss , cv ss vss and cvss to gnd and pgnd voltage - 5.5 to 0.3 v v rout , v lout rout and lout to gnd voltage v ss - 0.3 to v dd +0.3 v v cp+ cp+ to pgnd voltage - 0.3 to pv dd +0.3 v v cp - cp - to pgnd voltage cv ss - 0.3 to 0.3 v 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 ( 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 . ) notes 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. 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 , 3 ) symbol parameter typical value unit q ja junction - to - ambient resistance in free a ir tqfn3x3 - 16 tqfn4x4 - 20b tssop16 55 43 100 o c/w q jc junction - to - case resistance in free air tqfn3x3 - 16 tqfn4x4 - 20b 10 8 o c/w note 2: please refer to ?thermal pad consideration?. 2 layered 5 in2 printed circuit boards with 2oz trace and copper through several thermal vias. the thermal pad is soldered on the pcb. n o t e 3 : t h e c a s e t e m p e r a t u r e i s m e a s u r e d a t t h e c e n t e r o f t h e e x p o s e d p a d o n t h e u n d e r s i d e o f t h e t q f n 3 x 3 - 1 6 a n d t q f n 4 x 4 - 2 0 b p a c k a g e s . 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 ) symbol parameter range unit v dd supply voltage 1.8 ~ 4.5 v pv dd charge pump power supply voltage 2.2 ~ 5.5 v v ih high level threshold voltage rsd, lsd 0.6pv dd ~ pv dd v v il low level threshold voltage rsd, lsd 0 ~ 0.3pv dd v v icm common mode inpu t voltage ~ v dd - 1 v t a ambient temperature - 40 ~ 85 o c t j junction temperature - 40 ~ 125 o c r l headphone resistance 14 ~ w note 4 : refer to the typical application 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 . 3 - m a y . , 2 0 0 9 w w w . a n p e c . c o m . t w 4 a p a 2 1 7 6 / 2 1 7 6 a e l e c t r i c a l c h a r a c t e r i s t i c s apa2176/2176a symbol parameter test conditions min. typ. max. unit supply current i dd v dd supply current - 2.0 4.0 ma i pvdd pv dd supply current - 3.2 6.5 ma i sd (vdd) v dd shutdown current v rsd = v lsd = 0 - 1.0 5.0 m a i sd(pvdd) pv dd shu tdown current v rsd = v lsd = 0 - 1.0 5.0 m a charge pump f osc switching frequency 450 510 570 khz req charge pump equivalent resistance c cpo =c cpf =2.2 m f 6 7 9 w power - on - reset rising v dd threshold pv dd =5v 1.67 1.7 1.73 v falling v dd threshold pv dd =5v 1.57 1.6 1.63 v amplifiers av internal voltage gain no load - 1.55 - 1.5 - 1.45 v/v d a v gain match - 1.0 - % r i input resistance 12 14 16 k w sr slew rate - 2.5 - v/ m s c l maximum capacitive load - 400 - pf t start - up start - up time from shutdown - 120 - m s v dd =3.3 v, p v dd =5.0v, t a =25 x c thd +n = 1% , f in =1khz, in phase r l = 16 w r l = 32 w 125 200 150 - p o output power thd +n = 1 0 % , f in =1khz, in phase r l = 16 w r l = 32 w 170 270 200 - m w thd+n total harmonic distortion pulse noise f in = 1 k h z p o = 140m w , r l = 16 w p o = 105m w , r l = 32 w v o = 1.7vrms , r l = 10k w - 0.04 0.03 0.002 - % crosstalk channel separation f in = 1khz p o = 140mw , r l = 16 w v o = 1.7vrms, r l = 10k w - 78 90 - db psrr power supply rejection ratio r l = 16 w , f in =217hz - 90 - db vos output offset voltage r l = 32 w - 5 - 5 mv s/n signal to noise ratio w ith a - weight ing filter p o = 105m w, r l = 32 w - 95 - db vn noise output voltage r l = 32 w - 15 - m v (rms) u n l e s s o t h e r w i s e s p e c i f i e d , t h e s e s p e c i f i c a t i o n s a p p l y o v e r v d d = 3 . 3 v , p v d d = 5 v , v p g n d = v g n d = 0 v , a n d c c p o = c c p f = 2 . 2 m f . t y p i c a l v a l u e s a r e a t t a = 2 5 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 . 3 - m a y . , 2 0 0 9 w w w . a n p e c . c o m . t w 5 a p a 2 1 7 6 / 2 1 7 6 a e l e c t r i c a l c h a r a c t e r i s t i c s ( c o n t . ) apa2176/2176a symbol parameter test condition s min. typ. max. unit v dd =1.8 v, p v dd =3.0v, t a =25 x c thd +n = 1% , f in =1khz, in phase r l = 16 w r l = 32 w 35 55 40 - p o output power thd +n = 1 0 % , f in =1khz, in phase r l = 16 w r l = 32 w 45 70 55 - m w thd+n total harmonic distortion pulse noise f in = 1 k hz p o = 40m w , r l = 16 w p o = 30m w , r l = 32 w v o = 0.9vrms , r l = 10k w - 0.04 0.03 0.002 - % crosstalk channel separation f in = 1khz p o = 40mw , r l = 16 w v o = 0.9vrms , r l = 10k w - 78 90 - db psrr pow er supply rejection ratio r l = 16 w , f in =217hz - 82 - db v os output offset voltage r l = 32 w - 5 - 5 mv s/n signal to noise ratio w ith a - weight ing filter p o = 30m w, r l = 32 w - 95 - db vn noise output voltage r l = 32 w - 15 - m v (rms) u n l e s s o t h e r w i s e s p e c i f i e d , t h e s e s p e c i f i c a t i o n s a p p l y o v e r v d d = 3 . 3 v , p v d d = 5 v , v p g n d = v g n d = 0 v , a n d c c p o = c c p f = 2 . 2 m f . t y p i c a l v a l u e s a r e a t t a = 2 5 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 . 3 - m a y . , 2 0 0 9 w w w . a n p e c . c o m . t w 6 a p a 2 1 7 6 / 2 1 7 6 a 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 t h d + n v s . o u t p u t v o l t a g e t h d + n v s . o u t p u t p o w e r t y p i c a l o p e r a t i n g c h a r a c t e r i s t i c s t h d + n v s . o u t p u t p o w e r t h d + n v s . v o l t a g e 0.01 10 0.1 1 0 350 50 100 150 200 250 300 t h d + n ( % ) output power (mw) f in =1khz f in =20hz f in =20khz v dd =3.3v pv dd =5.0v r l =16 w c in =1 m f bw<80khz stereo, in phase 0.01 10 0.1 1 0 250 50 100 150 200 t h d + n ( % ) output power (mw) f in =1khz f in =20hz f in =20khz v dd =3.3v pv dd =5.0v r l =32 w c in =1 m f bw<80khz stereo, in phase 0.001 10 0.01 0.1 1 0 4 1 2 3 t h d + n ( % ) output voltage (v rms ) f in =1khz f in =20hz f in =20khz v dd =3.3v pv dd =5.0v r l =10k w c in =1 m f bw<80khz stereo, in phase 0.01 10 0.1 1 0 200 50 100 150 t h d + n ( % ) output power (mw) f in =1khz f in =20hz f in =20khz v dd =2.8v pv dd =3.6v r l =16 w c in =1 m f bw<80khz stereo, in phase 0.01 10 0.1 1 0 150m 30 60 90 120 t h d + n ( % ) output power (mw) f in =1khz f in =20hz f in =20khz v dd =2.8v pv dd =3.6v r l =32 w c in =1 m f bw<80khz stereo, in phase 0.001 10 0.01 0.1 1 0 3 1 2 t h d + n ( % ) output voltage (vrms) f in =1khz f in =20hz f in =20khz v dd =2.8v pv dd =3.6v r l =10k w c in =1 m f bw<80khz stereo, in phase
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 3 - m a y . , 2 0 0 9 w w w . a n p e c . c o m . t w 7 a p a 2 1 7 6 / 2 1 7 6 a 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 t h d + n v s . v o l t a g e t h d + n v s . o u t p u t p o w e r t y p i c a l o p e r a t i n g c h a r a c t e r i s t i c s ( c o n t . ) t h d + n v s . o u t p u t p o w e r t h d + n v s . v o l t a g e 0.01 10 0.1 1 0 100 20 40 60 80 t h d + n ( % ) output power (mw) f in =1khz f in =20hz f in =20khz v dd =1.8v pv dd =3.0v r l =16 w c in =1 m f bw<80khz stereo, in phase 0.01 10 0.1 1 0 60 10 20 30 40 50 t h d + n ( % ) output power (mw) f in =1khz f in =20hz f in =20khz v dd =1.8v pv dd =3.0v r l =32 w c in =1 m f bw<80khz stereo, in phase 0.001 10 0.01 0.1 1 0 2 0.5 1 1.5 t h d + n ( % ) f in =1khz f in =20hz f in =20khz v dd =1.8v pv dd =3.0v r l =10k w c in =1 m f bw<80khz stereo, in phase output voltage (vrms) 0.01 10 0.1 1 0 80 20 40 60 t h d + n ( % ) output power (mw) f in =1khz f in =20hz f in =20khz v dd =1.8v pv dd =2.4v r l =16 w c in =1 m f bw<80khz stereo, in phase 0.01 10 0.1 1 0 60 10 20 30 40 50 t h d + n ( % ) output power (mw) f in =1khz f in =20hz f in =20khz v dd =1.8v pv dd =2.4v r l =32 w c in =1 m f bw<80khz stereo, in phase 0.001 10 0.01 0.1 1 0 2 0.5 1 1.5 t h d + n ( % ) output voltage (vrms) f in =1khz f in =20hz f in =20khz v dd =1.8v pv dd =2.4v r l =10k w c in =1 m f bw<80khz stereo, in phase
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 3 - m a y . , 2 0 0 9 w w w . a n p e c . c o m . t w 8 a p a 2 1 7 6 / 2 1 7 6 a t h d + n v s . f r e q u e n c y t h d + n v s . f r e q u e n c y t h d + n v s . f r e q u e n c y t h d + n v s . f r e q u e n c y t y p i c a l o p e r a t i n g c h a r a c t e r i s t i c s ( c o n t . ) t h d + n v s . f r e q u e n c y t h d + n v s . f r e q u e n c y 0.006 10 0.01 0.1 1 20 20k 100 1k 10k frequency (hz) left channel right channel v dd =3.3v pv dd =5.0v r l =16 w p o =140mw c in =1 m f bw<22khz t h d + n ( % ) 0.006 10 0.01 0.1 1 20 20k 100 1k 10k frequency (hz) left channel right channel t h d + n ( % ) v dd =3.3v pv dd =5.0v r l =32 w p o =105mw c in =1 m f bw<22khz 0.0006 10 0.01 0.1 1 20 20k 100 1k 10k frequency (hz) left channel right channel t h d + n ( % ) v dd =3.3v pv dd =5.0v r l =10k w v o =1.7vrms c in =1 m f bw<22khz 0.001 0.006 10 0.01 0.1 1 20 20k 100 1k 10k frequency (hz) left channel right channel t h d + n ( % ) v dd =2.8v pv dd =3.6v r l =16 w p o =70mw c in =1 m f bw<22khz 0.006 10 0.01 0.1 1 20 20k 100 1k 10k frequency (hz) left channel right channel t h d + n ( % ) v dd =2.8v pv dd =3.6v r l =32 w p o =60mw c in =1 m f bw<22khz 0.0006 10 0.001 0.01 0.1 1 20 20k 100 1k 10k frequency (hz) left channel right channel t h d + n ( % ) v dd =2.8v pv dd =3.6v r l =10k w v o =1.4vrms c in =1 m f bw<22khz
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 . 3 - m a y . , 2 0 0 9 w w w . a n p e c . c o m . t w 9 a p a 2 1 7 6 / 2 1 7 6 a t h d + n v s . f r e q u e n c y t h d + n v s . f r e q u e n c y t h d + n v s . f r e q u e n c y t h d + n v s . f r e q u e n c y t y p i c a l o p e r a t i n g c h a r a c t e r i s t i c s ( c o n t . ) t h d + n v s . f r e q u e n c y t h d + n v s . f r e q u e n c y 0.001 10 0.01 0.1 1 20 20k 100 1k 10k frequency (hz) left channel right channel t h d + n ( % ) v dd =1.8v pv dd =3.0v r l =16 w p o =40mw c in =1 m f bw<22khz 0.001 10 0.01 0.1 1 20 20k 100 1k 10k frequency (hz) left channel right channel t h d + n ( % ) v dd =1.8v pv dd =3.0v r l =32 w p o =30mw c in =1 m f bw<22khz 0.0006 10 0.01 0.1 1 20 20k 100 1k 10k frequency (hz) t h d + n ( % ) left channel right channel v dd =1.8v pv dd =3.0v r l =10k w v o =0.9vrms c in =1 m f bw<22khz 0.001 0.001 10 0.01 0.1 1 20 20k 100 1k 10k frequency (hz) left channel right channel t h d + n ( % ) v dd =1.8v pv dd =2.4v r l =16 w p o =23mw c in =1 m f bw<22khz 0.001 10 0.01 0.1 1 20 20k 100 1k 10k frequency (hz) left channel right channel t h d + n ( % ) v dd =1.8v pv dd =2.4v r l =32 w p o =23mw c in =1 m f bw<22khz 0.0006 10 0.01 0.1 1 20 20k 100 1k 10k frequency (hz) left channel right channel t h d + n ( % ) v dd =1.8v pv dd =2.4v r l =10k w v o =0.9vrms c in =1 m f bw<22khz
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 . 3 - m a y . , 2 0 0 9 w w w . a n p e c . c o m . t w 1 0 a p a 2 1 7 6 / 2 1 7 6 a c r o s s t a l k v s . f r e q u e n c y c r o s s t a l k v s . f r e q u e n c y c r o s s t a l k v s . f r e q u e n c y c r o s s t a l k v s . f r e q u e n c y t y p i c a l o p e r a t i n g c h a r a c t e r i s t i c s ( c o n t . ) 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 frequency (hz) -120 +0 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 20 20k 50 100 200 500 1k 2k 5k 10k c r o s s t a l k ( d b ) left to right right to left v dd =3.3v pv dd =5.0v r l =16 w p o =140mw c in =1 m f -120 +0 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 20 20k 50 100 200 500 1k 2k 5k 10k t c r o s s t a l k ( d b ) frequency (hz) left to right right to left v dd =3.3v pv dd =5.0v r l =10k w v o =1.7vrms c in =1 m f -120 +0 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 20 20k 50 100 200 500 1k 2k 5k 10k c r o s s t a l k ( d b ) frequency (hz) left to right right to left v dd =1.8v pv dd =3.0v r l =16 w p o =40mw c in =1 m f -120 +0 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 20 20k 50 100 200 500 1k 2k 5k 10k c r o s s t a l k ( d b ) frequency (hz) left to right right to left v dd =1.8v pv dd =3.0v r l =10k w v o =0.9vrms c in =1 m f 1 m 50 m 10 m 20 m 20 20k 100 1k 10k o u t p u t n o i s e v o l t a g e ( v r m s ) frequency (hz) v dd =3.3v pv dd =5.0v r l =16 w c in =1 m f a-weighting left channel right channel 1 m 50 m 10 m 20 m 20 20k 100 1k 10k o u t p u t n o i s e v o l t a g e ( v r m s ) frequency (hz) v dd =3.3v pv dd =5.0v r l =10k w c in =1 m f a-weighting left channel right channel
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 . 3 - m a y . , 2 0 0 9 w w w . a n p e c . c o m . t w 1 1 a p a 2 1 7 6 / 2 1 7 6 a 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 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 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 . ) 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 1 m 50 m 10 m 20 m 20 20k 100 1k 10k o u t p u t n o i s e v o l t a g e ( v r m s ) frequency (hz) v dd =1.8v pv dd =3.0v r l =16 w c in =1 m f a-weighting left channel right channel 20 20k 100 1k 10k o u t p u t n o i s e v o l t a g e ( v r m s ) frequency (hz) v dd =1.8v pv dd =3.0v r l =10k w c in =1 m f a-weighting left channel right channel 1 m 50 m 10 m 20 m +140 +0 10 200k 100 1k 10k frequency (hz) g a i n ( d b ) p h a s e ( d e g ) +220 +160 +180 +200 +4 +1 +2 +3 gain phase v dd =3.3v pv dd =5.0v r l =16 w c in =1 m f +140 +220 +160 +180 +200 +0 +4 +1 +2 +3 10 200k 100 1k 10k frequency (hz) g a i n ( d b ) p h a s e ( d e g ) gain phase v dd =3.3v pv dd =5.0v r l =10k w c in =1 m f +140 +220 +160 +180 +200 +0 +4 +1 +2 +3 10 200k 100 1k 10k frequency (hz) g a i n ( d b ) p h a s e ( d e g ) gain phase v dd =1.8v pv dd =3.0v r l =16 w c in =1 m f 10 200k 100 1k 10k frequency (hz) g a i n ( d b ) p h a s e ( d e g ) +140 +220 +160 +180 +200 +0 +4 +1 +2 +3 gain phase v dd =1.8v pv dd =3.0v r l =10k w c in =1 m f
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 . 3 - m a y . , 2 0 0 9 w w w . a n p e c . c o m . t w 1 2 a p a 2 1 7 6 / 2 1 7 6 a p s r r v s . f r e q u e n c y p s r r v s . f r e q u e n c y p s r r v s . f r e q u e n c y p s r r v s . f r e q u e n c y t y p i c a l o p e r a t i n g c h a r a c t e r i s t i c s ( c o n t . ) c h a r g e p u m p s u p p l y c u r r e n t v s . s u p p l y v o l t a g e s u p p l y c u r r e n t v s . s u p p l y v o l t a g e -120 -20 -110 -100 -90 -80 -70 -60 -50 -40 -30 20 20k 100 1k 10k t t t t frequency (hz) p s r r ( d b ) v dd =3.3v pv dd =5.0v r l =16 w c in =1 m f v rr =200mvrms left channel right channel -120 -20 -110 -100 -90 -80 -70 -60 -50 -40 -30 20 20k 100 1k 10k frequency (hz) p s r r ( d b ) v dd =3.3v pv dd =5.0v r l =10k w c in =1 m f v rr =200mvrms left channel right channel -120 -20 -110 -100 -90 -80 -70 -60 -50 -40 -30 20 20k 100 1k 10k t t t frequency (hz) p s r r ( d b ) v dd =1.8v pv dd =3.0v r l =16 w c in =1 m f v rr =200mvrms left channel right channel -120 -20 -110 -100 -90 -80 -70 -60 -50 -40 -30 20 20k 100 1k 10k t frequency (hz) p s r r ( d b ) v dd =1.8v pv dd =3.0v r l =10k w c in =1 m f v rr =200mvrms left channel right channel 0.0 1.0 2.0 3.0 4.0 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 s u p p l y c u r r e n t ( m a ) charge pump supply voltage (v) v dd =3.3v i vdd =2.0ma no load 0.0 1.0 2.0 3.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 supply voltage (v) s u p p l y c u r r e n t ( m a ) pv dd =5.0v i p vdd =3.2ma no load
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 . 3 - m a y . , 2 0 0 9 w w w . a n p e c . c o m . t w 1 3 a p a 2 1 7 6 / 2 1 7 6 a c h a r g e p u m p s h u t d o w n c u r r e n t v s . s u p p l y v o l t a g e s h u t d o w n c u r r e n t v s . s u p p l y v o l t a g e 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 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 charge pump supply voltage (volt) s h u t d o w n c u r r e n t ( m a ) 0.0 0.2 0.4 0.6 0.8 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 rsd = lsd =0v v dd =3.3v i sd( vdd) =0.65 m a no load supply voltage (volt) s h u t d o w n c u r r e n t ( m a ) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.5 2.0 2.5 3.0 3.5 4.0 4.5 rsd = lsd =0v pv dd =5.0v i sd(p vdd) =0.58 m a no load output power (mw) p o w e r d i s s i p a t i o n ( m w ) 0 50 100 150 200 250 0 50 100 150 200 250 v dd =3.3v pv dd =5.0v thd+n<1% r l =16 w r l =32 w output power (mw) p o w e r d i s s i p a t i o n ( m w ) 0 25 50 75 100 125 150 0 20 40 60 80 100 120 v dd =2.8v pv dd =3.6v thd+n<1% r l =32 w r l =16 w output power (mw) p o w e r d i s s i p a t i o n ( m w ) 0 20 40 60 80 100 0 10 20 30 40 50 60 v dd =1.8v pv dd =3.0v thd+n<1% r l =16 w r l =32 w output power (mw) p o w e r d i s s i p a t i o n ( m w ) 0 10 20 30 40 50 60 70 0 10 20 30 40 v dd =1.8v pv dd =2.4v thd+n<1% r l =16 w r l =32 w
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 3 - m a y . , 2 0 0 9 w w w . a n p e c . c o m . t w 1 4 a p a 2 1 7 6 / 2 1 7 6 a o u t p u t p o w e r v s . l o a d r e s i s t a n c e o u t p u t p o w e r v s . l o a d r e s i s t a n c e o u t p u t p o w e r v s . l o a d r e s i s t a n c e o u t p u t p o w e r v s . l o a d r e s i s t a n c e t y p i c a l o p e r a t i n g c h a r a c t e r i s t i c s ( c o n t . ) c h a r g e p u m p o u t p u t r e s i s t a n c e v s . s u p p l y v o l t a g e g s m p o w e r s u p p l y r e j e c t i o n v s . f r e q u e n c y o u t p u t p o w e r ( m w ) load resistance ( w ) 0 50 100 150 200 250 300 10 100 1000 v dd =3.3v pv dd =5.0v f in =1khz c in =1 m f bw<80khz stereo, in phase thd+n=10% thd+n=1% 0 25 50 75 100 125 150 10 100 1000 o u t p u t p o w e r ( m w ) load resistance ( w ) v dd =2.8v pv dd =3.6v f in =1khz c in =1 m f bw<80khz stereo, in phase thd+n=10% thd+n=1% 0 20 40 60 80 100 10 100 1000 o u t p u t p o w e r ( m w ) load resistance ( w ) v dd =1.8v pv dd =3.0v f in =1khz c in =1 m f bw<80khz stereo, in phase thd+n=10% thd+n=1% 0 10 20 30 40 50 60 10 100 1000 o u t p u t p o w e r ( m w ) load resistance ( w ) v dd =1.8v pv dd =2.4v f in =1khz c in =1 m f bw<80khz stereo, in phase thd+n=10% thd+n=1% 4 5 6 7 8 9 10 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 o u t p u t r e s i s t a n c e ( w ) charge pump supply voltage (volt) i pvdd =10ma no load c f =c co =2.2 m f c f =c co =1 m f s u p p l y v o l t a g e ( d b v ) frequency (hz) o u t p u t v o l t a g e ( d b v ) -150 +0 -100 -50 0 2k 400 800 1.2k 1.6k -150 +0 -100 -50
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 . 3 - m a y . , 2 0 0 9 w w w . a n p e c . c o m . t w 1 5 a p a 2 1 7 6 / 2 1 7 6 a o p e r a t i n g w a v e f o r m s output transient at turn on 1 3 2 ch1: v dd , 2v/div, dc ch3: v out , 20mv/div, dc time: 5 ms/div ch2: pv dd , 2v/div, dc v dd v out pv dd shutdown release 1 2 ch1: v rs d , 2v/div, dc ch2: v out , 1v/div, dc time: 200 m s/div v out v rsd output transient at shutdown active 1 2 ch1: v rs d , 2v/div, dc ch2: v out , 20mv/div, dc time: 20 ms/div v out v rsd g s m p o w e r s u p p l y r e j e c t i o n v s . t i m e output transient at power off 1 3 2 ch1: v dd , 2v/div, dc ch3: v out , 20mv/div, dc time: 100 ms/div ch2: pv dd , 2v/div, dc pv dd v dd v out output transient at shutdown release 1 2 ch1: v rs d , 2v/div, dc ch2: v out , 20mv/div, dc time: 20 ms/div v out v rsd t 1 2 ch1: v dd , 500mv/div, dc ch2: v out , 20mv/div, dc time: 20 ms/div v dd v out v dd offset = 3.3v
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 . 3 - m a y . , 2 0 0 9 w w w . a n p e c . c o m . t w 1 6 a p a 2 1 7 6 / 2 1 7 6 a tqfn4x4 - 20b tssop - 16 tqfn3x3 - 16 (for apa2176a) no. no. no. name function 1 4 1 cp+ charge pump flying capacitor positive connection . 2 5 2 pgnd charge pump ground . 3 6 3 cp - charge pump flying capacitor negative connection . 4,6,8,12, 16,20 1,3 4, 13 nc no connection. 5 7 5 cvss charge pump output . 7 8 6 vss connect this pin to cvss. 9 9 7 lout lef t channel output for headphone . 10 10 8 vdd supply voltage input pin. 11 11 9 rout right channel output for headphone . 13 12 10 lin lef t channel a udio signal input pin. 14 13 11 rsd right channel shutdown mode control pin. a low - level voltage applied on this pin shuts off the right channel headphone driver. 15 14 12 rin right channel audio signal input pin. 17 15 14 gnd ground connection for c ircuitry. 18 16 15 lsd left channel shutdown mode control pin. a low - level voltage applied on this pin shuts off the left channel headphone driver. 19 2 16 pvdd charge pump power supply voltage input pin. b l o c k d i a g r a m p i n d e s c r i p t i o n shutdown circuit power and depop circuit rout rin rsd charge pump circuit lin lout gnd vdd cp+ cp- cvss vss pgnd pvdd lsd gnd
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 3 - m a y . , 2 0 0 9 w w w . a n p e c . c o m . t w 1 7 a p a 2 1 7 6 / 2 1 7 6 a 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 shutdown circuit power and depop circuit rout rin rsd charge pump circuit lin lout gnd v dd cp+ cp- cvss v ss pgnd pvdd lsd gnd headphone jack 1 m f r-ch input 1 m f l-ch input 10 m f shutdown control pv dd v dd 2.2 m f 2.2 m f c cpf 0.1 m f c cpo c ir c il 14k 14k 21k 21k c cpb c s 10 m f r ir r il r fr r fl v dd pv dd 3.3v 5.0v 2.2v 3.6v 1.8v 3.0v 1.8v 2.4v recommended supply voltage v ss
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 . 3 - m a y . , 2 0 0 9 w w w . a n p e c . c o m . t w 1 8 a p a 2 1 7 6 / 2 1 7 6 a age pv dd to provide maximum device performance. by switching the both rsd and lsd pins to low level, the am plifier enters a low-consumption curren t circumstance, with charge pump disabled, and very small i dd for the apa 2 1 7 6 / 2 1 7 6 a . the charge pump is enabled once ei ther rsd or lsd pin is pulled to high. in normal operating, the apa 2 1 7 6 / 2 1 7 6 a ?s rsd and lsd pins should be pulled to high level to keep the ic out of the shutdown mode. the rsd and lsd pins should be tied to a definite volt age to avoid unwanted mode changing. 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 . c a p - f r e e o p e r a t i o n t h e a p a 2 1 7 6 / 2 1 7 6 a ? s h e a d p h o n e d r i v e r s u s e a c h a r g e p u m p t o i n v e r t t h e p o s i t i v e p o w e r s u p p l y ( p v d d ) t o n e g a - t i v e p o w e r s u p p l y ( c v s s ) , s e e f i g u r e 1 . t h e h e a d p h o n e d r i v e r s o p e r a t e a t t h i s b i p o l a r p o w e r s u p p l y ( v d d a n d v s s ) a n d t h e o u t p u t s r e f e r e n c e r e f e r s t o t h e g r o u n d . t h i s f e a - t u r e e l i m i n a t e s t h e o u t p u t c a p a c i t o r s w h i c h a r e u s e d i n c o n v e n t i o n a l s i n g l e - e n d e d h e a d p h o n e a m p l i f i e r s . c o m - p a r e d w i t h t h e s i n g l e p o w e r s u p p l y a m p l i f i e r s , t h e p o w e r s u p p l y v o l t a g e i s a l m o s t d o u b l e . the apa2176/2176a is a stereo, fixed gain, cap-free head- phone driver. the gain is set by internal resistors, input resistors (r i ), and feedback resistors (r f ) with -1.5v/v (see typical application circuit). s h u t d o w n f u n c t i o n in order to reduce power consumption, the apa 2 1 7 6 / 2 1 7 6 a contain two shutdown signal input pins (lsd for left chan- nel and rsd for right channel) to allow respective shut- down which turns off the bias current of the amplifier . this shutdown feature turns the amplifier off when logic low is placed on the rsd or lsd pin for the apa 2 1 7 6 / 2 1 7 6 a . the trigger po int betwee n a logic high and logic low level i s typica lly 0.6pv dd and 0.3pv dd . it is highly rec- ommended to switc h between ground and the supply vol t- v dd v dd /2 gnd v out v dd v ss gnd v out conventional headphone amplifier cap-free headphone amplifier
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 . 3 - m a y . , 2 0 0 9 w w w . a n p e c . c o m . t w 1 9 a p a 2 1 7 6 / 2 1 7 6 a a p p l i c a t i o n i n f o r m a t i o n charge pump flying capacitor (c cpf ) t h e f l y i n g c a p a c i t o r ( c c p f ) a f f e c t s t h e l o a d t r a n s i e n t o f t h e c h a r g e p u m p . i f t h e c a p a c i t o r ? s v a l u e i s t o o s m a l l , a n d t h e n t h i s i n c r e a s e s c h a r g e p u m p ? s o u t p u t r e s i s t a n c e a n d d e g r a d e s t h e p e r f o r m a n c e o f h e a d p h o n e a m p l i f i e r . i n c r e a s i n g t h e f l y i n g c a p a c i t o r ? s v a l u e i m p r o v e s t h e l o a d t r a n s i e n t o f c h a r g e p u m p . i t i s r e c o m m e n d t o u s e t h e l o w e s r c e r a m i c c a p a c i t o r s ( x 7 r t y p e i s r e c o m m e n d e d ) a b o v e 2 . 2 m f . charge pump output capacitor (c cpo ) the charge pump needs an output capacitor(c cpo ) to fil- ter the negative output current pulse flowing into cvss pin as well as reduces the output voltage ripple(cvss). the capacitor also sucks in surge current flowing from the v ss pin, the negative power input pin for the amplifiers. the output ripple is determined by the capacitance, esr, and current ripple of the output capacitor. increasing the value of output capacitor and decreasing the esr can reduce the voltage ripple. using a low-esr ceramic ca- pacitor greater than 2.2 m f is recommended. for reduc- ing the parasitic inductance and improving the noise decoupling, place the capacitor near the cvss and the pgnd pins as close as possible. charge pump bypass capacitor (c cpb ) 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 i n p u t i m p e d a n c e r i f r o m a h i g h - p a s s f i l t e r w i t h t h e c u t o f f f r e q u e n c y a r e d e t e r m i n e d i n t h e f o l l o w i n g e q u a t i o n : 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 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 1 4 k w a n d t h e s p e c i f i c a t i o n t h a t c a l l s f o r a f l a t b a s s r e s p o n s e d o w n t o 1 0 h z . t h e e q u a t i o n i s r e c o n f i g u r e d a s b e l o w : 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 1 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 1 m f t o 2 . 2 m f w o u l d b e c h o s e n . a f u r t h e r c o n s i d e r a t i o n f o r t h i s c a p a c i - t o r i s t h e l e a k a g e p a t h f r o m t h e i n p u t s o u r c e t h r o u g h t h e i n p u t n e t w o r k ( r i + r f , c i ) t o t h e l o a d . t h i s l e a k a g e c u r r e n t c r e a t e s a d c o f f s e t v o l t a g e a t t h e i n p u t t o t h e a m p l i f i e r t h a t r e d u c e s u s e f u l h e a d r o o m , e s - p e c i a l l y i n h i g h g a i n a p p l i c a t i o n s . f o r t h i s r e a s o n , a l o w - l e a k a g e t a n t a l u m o r c e r a m i c c a p a c i t o r i s t h e b e s t c h o i c e . w h e n p o l a r i z e d c a p a c i t o r s a r e u s e d , t h e n e g a 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 s ? i n p u t s i n m o s t a p p l i c a t i o n s b e c a u s e t h e d c l e v e l o f t h e a m p l i f i e r s ? i n - p u t s a r e h e l d a t 0 v . 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 . 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 1 7 6 / 2 1 7 6 a i s a h i g h - p e r f o r m a n c e c m o s a u d i o a m p l i f i e r t h a t r e q u i r e s a d e q u a t e p o w e r s u p p l y d e c o u p l i n g t o e n s u r e t h e o u t p u t t o t a l h a r m o n i c d i s t o r t i o n ( t h d + n ) 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 t h a t t a r g e t s o n d i f f e r e n t t y p e s o f n o i s e o n t h e p o w e r s u p p l y l e a d s . f o r h i g h e r f r e q u e n c y t r a n s i e n t s , s p i k e s , o r d i g i t a l h a s h o n t h e l i n e , a g o o d l o w e q u i v a l e n t - s e r i e s - r e s i s t a n c e ( e s r ) c e r a m i c c a p a c i t o r , t y p i c a l l y 0 . 1 m f , 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 f o r t h e b e s t p e r f o r m a n c e . f o r f i l t e r i n g l o w e r f r e q u e n c y n o i s e s i g n a l s , a l a r g e a l u m i n u m e l e c t r o l y t i c c a p a c i t o r o f 1 0 m f o r g r e a t e r p l a c e d n e a r t h e a u d i o p o w e r a m p l i f i e r i s r e c o m m e n d e d . thermal consideration linear power amplifiers dissipate a significant amount of heat in the package in normal operating condition. the (1) (2) c i i f r 2 1 c p = i i ) c(highpass c r 2 1 f p = the bypass capacitor(c cpb ) connected with pv dd pin sup- plies the charge pump with surge current as well as re- duces the voltage ripple on pv dd pin. using a low-esr ceramic capacitor 10 m f(typical) is recommended. for reducing the parasitic inductance and improving the noise decoupling, place the capacitor near the pv dd and the pgnd pins as close as possible.
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 . 3 - m a y . , 2 0 0 9 w w w . a n p e c . c o m . t w 2 0 a p a 2 1 7 6 / 2 1 7 6 a 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 . ) thermal consideration (cont.) f i g u r e 2 . t q f n 4 x 4 - 2 0 b l a y o u t r e c o m m e n d a t i o n f i g u r e 3 . t q f n 3 x 3 - 1 6 l a y o u t r e c o m m e n d a t i o n first consideration to calculate maximum ambient tem- peratures is the numbers from the power dissipation vs. output power graphs are per channel values, therefore, the dissipation of the ic heat needs to be doubled for two-channel operation. given q ja , the maximum allow- able junction temperature (t jmax ), the total internal dissi- pation (p d ), and the maximum ambient temperature can be calculated with the following equation. the maximum recommended junction temperature for the apa2176/ 2176a is 150c. the internal dissipation figures are taken from the power dissipation vs. output power graphs. the apa2176/2176a is designed with a thermal shutdown protection that turns the device off when the junction tem- perature surpasses 150c to prevent damaging the ic. layout consideration 1. all components should be placed close to the apa2176/ 2176a. for example, the input capacitor (c i ) should be close to apa2176/2176a?s input pins to avoid causing noise coupling to apa2176/2176a?s high impedance inputs; the decoupling capacitor (c s ) should be placed by the apa2176/2176a?s power pin to decouple the power rail noise. 2. the output traces should be short, wide (>50mil), and symmetric. 3. the input trace should be short and symmetric. 4. the power trace width should be greater than 50mil. 5. the tqfn thermal pad should be soldered on pcb, and the ground plane needs soldered mask (to avoid short circuit) except the thermal pad area. 2.2mm 2 . 2 m m 0.5mm 0.35mm ground plane for thermalpad thermalvia diameter 0.3mm x 5 4 . 9 m m 0.9mm 1 . 5 5 m m 1.55mm 0.5mm 0.3mm 1mm ground plane for thermal pad thermal via diameter 0.3mm x 5 4 . 0 m m
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 3 - m a y . , 2 0 0 9 w w w . a n p e c . c o m . t w 2 1 a p a 2 1 7 6 / 2 1 7 6 a p a c k a g e i n f o r m a t i o n t q f n 4 x 4 - 2 0 b k 0.20 0.008 3.90 4.10 0.154 0.161 3.90 4.10 0.154 0.161 s y m b o l min. max. 0.80 0.00 0.18 0.30 2.00 2.70 0.05 2.00 a a1 b d d2 e e2 e l millimeters a3 0.20 ref tqfn4x4-20b 0.35 0.45 2.70 0.008 ref min. max. inches 0.031 0.000 0.008 0.012 0.079 0.106 0.079 0.014 0.018 0.70 0.106 0.028 0.002 0.50 bsc 0.020 bsc note : 1. followed from jedec mo-220 vggd-5. a b a1 a3 d pin 1 e e pin 1 corner d2 e 2 k l
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 . 3 - m a y . , 2 0 0 9 w w w . a n p e c . c o m . t w 2 2 a p a 2 1 7 6 / 2 1 7 6 a p a c k a g e i n f o r m a t i o n t s s o p - 1 6 s y m b o l min. max. 1.20 0.05 0.09 0.20 4.90 5.10 0.15 a a1 c d e1 l e millimeters b 0.19 0.30 tssop-16 4.30 4.50 min. max. inches 0.047 0.002 0.007 0.012 0.004 0.008 0.193 0.201 0.244 0.260 0.169 0.177 0 0.006 a2 0.80 1.05 6.20 6.60 e 6.5 bsc 0.26 bsc 0.031 0.041 note : 1. follow from jedec mo-153 ab. 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 "e1" does not include inter-lead flash or protrusions. inter-lead flash and protrusions shall not exceed 10 mil per side. s 8 0 8 0 a 2 a a 1 view a seating plane gauge plane 0 . 2 5 l 0.45 0.75 0.018 0.030 see view a c d e e 1 b 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 . 3 - m a y . , 2 0 0 9 w w w . a n p e c . c o m . t w 2 3 a p a 2 1 7 6 / 2 1 7 6 a p a c k a g e i n f o r m a t i o n t q f n 3 x 3 - 1 6 note : follow jedec mo-220 weed-4. d e pin 1 a b a1 a3 d2 e 2 e pin 1 corner k s y m b o l min. max. 0.80 0.00 0.18 0.30 1.50 1.80 0.05 1.50 a a1 b d d2 e e2 e l millimeters a3 0.20 ref tqfn3x3-16 0.30 0.50 1.80 0.008 ref min. max. inches 0.031 0.000 0.007 0.012 0.059 0.071 0.059 0.012 0.020 0.70 0.071 0.028 0.002 0.50 bsc 0.020 bsc k 0.20 0.008 2.90 3.10 0.114 0.122 2.90 3.10 0.114 0.122
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 . 3 - m a y . , 2 0 0 9 w w w . a n p e c . c o m . t w 2 4 a p a 2 1 7 6 / 2 1 7 6 a application a h t1 c d d w e1 f 330.0 ? 2.00 50 min. 12.4+2.00 - 0.00 13.0+0.50 - 0.20 1.5 min. 20.2 min. 12.0 ? 0.30 1.75 ? 0.10 5.5 ? 0.05 p 0 p1 p 2 d 0 d1 t a 0 b 0 k 0 tqfn4x4 - 20b 4.0 ? 0.10 8.0 ? 0.10 2.0 ? 0.05 1.5+0.10 - 0.00 1.5 min. 0.6+0.00 - 0.40 4.30 ? 0.20 4.30 ? 0.20 1.30 ? 0.20 application a h t1 c d d w e1 f 330.0 ? 2.00 50 min. 12.4+2.00 - 0.00 13.0+0.50 - 0.20 1.5 min. 20.2 min. 12.0 ? 0.30 1.75 ? 0.10 5.50 ? 0.05 p 0 p1 p 2 d 0 d1 t a 0 b 0 k 0 tssop - 16 4.00 ? 0.10 8.00 ? 0.10 2.0 0 ? 0.05 1.5+0.10 - 0.00 1.5 min. 0.6+0.00 - 0.40 6.90 ? 0.20 5.40 ? 0.20 1.60 ? 0.20 application a h t1 c d d w e1 f 330 ? 2.00 50 min. 12.4+2.00 - 0.00 13.0+0.50 - 0.20 1.5 min. 20.2 min. 12.0 ? 0.30 1.75 ? 0.10 5.5 ? 0.05 p 0 p1 p 2 d 0 d1 t a 0 b 0 k 0 tqfn3x3 - 16 4.0 ? 0.10 8.0 ? 0.10 2.0 ? 0.05 1.5+0.10 - 0.00 1.5 min. 0.6+0.00 - 0.40 3.30 ? 0.20 3.30 ? 0.20 1.30 ? 0.20 (mm) c a r r i e r t a p e & r e e l d i m e n s i o n s a e 1 a b w f t p0 od0 b a0 p2 k0 b 0 section b-b section a-a od1 p1 h t1 a d
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 3 - m a y . , 2 0 0 9 w w w . a n p e c . c o m . t w 2 5 a p a 2 1 7 6 / 2 1 7 6 a package type unit quantity tqfn4x4 - 20b tape & reel 3000 tssop - 16 tape & reel 2500 tqfn3x3 - 16 tape & reel 3000 d e v i c e s p e r u n i t 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 t q f n 3 x 3 - 1 6 t q f n 4 x 4 - 2 0 b t s s o p - 1 6 user direction of feed user direction of feed user direction of feed
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 3 - m a y . , 2 0 0 9 w w w . a n p e c . c o m . t w 2 6 a p a 2 1 7 6 / 2 1 7 6 a c l a s s i f i c a t i o n p r o f i l e profile feature sn - pb eutectic assembly pb - free assembly preheat & soak temperature min (t smin ) temperature max (t smax ) time (t smin to t smax ) ( t s ) 100 c 150 c 60 - 120 seconds 150 c 200 c 60 - 1 2 0 seconds average ramp - up rate (t smax to t p ) 3 c/second ma x. 3 c/second max. liquidous temperature ( t l ) time at l iquidous (t l ) 183 c 60 - 150 seconds 217 c 60 - 150 seconds peak package body temperature (t p ) * see classification temp in table 1 see classification temp in table 2 time (t p ) ** within 5 c of the spec ified c lassification t emperature ( t c ) 2 0 ** seconds 3 0 ** seconds average r amp - down rate (t p to t smax ) 6 c/second max. 6 c/second max. time 25 c to p eak t emperature 6 minutes max. 8 minutes max. * tolerance for peak profile temperature (t p ) is defined a s a supplier minimum and a user maximum. ** tolerance for time at peak profile temperature (t p ) is defined as a supplier minimum and a user maximum. c l a s s i f i c a t i o n r e f l o w p r o f i l e s
c 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 . 3 - m a y . , 2 0 0 9 w w w . a n p e c . c o m . t w 2 7 a p a 2 1 7 6 / 2 1 7 6 a table 1. snpb eutectic process ? classification temperatures (tc) package thickness volume mm 3 <350 volume mm 3 3 350 <2.5 mm 235 c 22 0 c 3 2.5 mm 220 c 220 c table 2. pb - free process ? classification temperatures (tc) package thickness volume mm 3 <350 volume mm 3 350 - 2000 volume mm 3 >2000 <1.6 mm 260 c 260 c 260 c 1.6 mm ? 2.5 mm 260 c 250 c 245 c 3 2.5 mm 250 c 245 c 245 c r e l i a b i l i t y t e s t p r o g r a m test item method description solderability jesd - 22, b102 5 sec, 245 c holt jesd - 22, a108 1000 hrs, bias @ 125 c pct jesd - 22, a102 168 hrs, 100%rh, 2atm , 121 c tct jesd - 22, a104 500 cycles, - 65 c~150 c esd mil - std - 883 - 3015.7 vhbm ? 2kv, vmm ? 200v latch - u p jesd 78 10ms, 1 tr ? 100ma 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 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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