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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 . 5 - f e b . , 2 0 1 3 w w w . a n p e c . c o m . t w 1 a n p e c r e s e r v e s t h e r i g h t t o m a k e c h a n g e s t o i m p r o v e r e l i a b i l i t y o r m a n u f a c t u r a b i l i t y w i t h o u t n o t i c e , a n d a d v i s e c u s t o m e r s t o o b t a i n t h e l a t e s t v e r s i o n o f r e l e v a n t i n f o r m a t i o n t o v e r i f y b e f o r e p l a c i n g o r d e r s . 2 . 5 w s t e r e o c l a s s - d a u d i o p o w e r a m p l i f i e r ( w i t h d c v o l u m e c o n t r o l ) a p a 2 6 0 3 b the apa2603b is a stereo, high efficiency, filter-free class- d audio amplifier available in a sop-16, qfn4x4-20a package. the apa2603b provide the precise dc volume control, the gain range is from -80db (v volume =5v) to +20db (v volume =0v) with 64 steps precise control. it?s easy to get the suitable amplifier?s gain with the 64 steps gain setting. the filter-free architecture eliminates the output filters compared to the traditional class-d audio amplifier, and reduces the external component counts and the compo- nents high, it could save the pcb space, system cost, simplifies the design and the power loss at filter. apa2603b provides an internal agc (non-clip) function, and this function can low down the dynamic range for large input signal. apa2603b can provide from 20db to - 80db with 64 steps gain decrease for non-clipping function, and this function can avoid output signal clipping. the apa2603b also integrates the de-pop circuitry that reduces the pops and click noises during power on/off or shutdown enable process. the apa2603b has build-in over-current and thermal pro- tection that prevent the chip being destroyed by short cir- cuit or over temperature situation. 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 l c d t v s d v d p l a y e r a c t i v e s p e a k e r s o p e r a t i n g v o l t a g e : 3 . 3 v - 5 . 5 v h i g h e f f i c i e n c y 8 5 % a t p o = 2 . 5 w , 4 w s p e a k e r , v d d = 5 v f i l t e r - f r e e c l a s s - d a m p l i f i e r l o w s h u t d o w n c u r r e n t - i d d = 1 m a a t v d d = 5 v 6 4 s t e p s v o l u m e a d j u s t a b l e f r o m - 8 0 d b t o + 2 0 d b 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 o u t p u t p o w e r a t t h d + n = 1 % - 2 . 5 w a t v d d = 5 v , r l = 4 w l e s s e x t e r n a l c o m p o n e n t s r e q u i r e d i n t e r n a l a g c f u n c t i o n i n p u t s i g n a l a n d o u t p u t s i g n a l i n p h a s e t h e r m a l a n d o v e r - c u r r e n t p r o t e c t i o n s w i t h a u t o - r e c o v e r y l e a d f r e e a n d g r e e n d e v i c e a v a i l a b l e ( r o h s c o m p l i a n t ) p o w e r e n h a n c e d p a c k a g e s s o p - 1 6 a n d q f n 4 x 4 - 2 0 a 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 apa 2603 b stereo speakers rout - rout + lout + lout - rin lin volume stereo input signals dc volume control
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 5 - f e b . , 2 0 1 3 w w w . a n p e c . c o m . t w 2 a p a 2 6 0 3 b o r d e r i n g a n d m a r k i n g i n f o r m a t i o n note : anpec lead-free products contain molding compounds/die attach materials and 100% matte tin plate termination finish; which are fully compliant with rohs. anpec lead-free products meet or exceed the lead-free requirements of ipc/jedec j-std-020d for msl classification at lead-free peak reflow temperature. anpec defines ?green? to mean lead-free (rohs compliant) and halogen free (br or cl does not exceed 900ppm by weight in homogeneous material and total of br and cl does not exceed 1500ppm by weight). apa 2603 b package code operating ambient temperature range i : - 40 to 85 o c handling code lead free code lead free code handling code temperature range package code apa 2603 b k : apa 2603 b xxxxx xxxxx - date code g : halogen and lead free device k : sop - 16 tr : tape & reel apa 2603 b qa : apa 2603 xxxxx xxxxx - date code qa : qfn 4 x 4 - 20 a b p i n c o n f i g u r a t i o n gnd 5 gnd 4 13 gnd mute 8 15 vdd lin 6 12 gnd rin 3 14 rout + bypass 2 16 rout - 11 lout + 10 vdd volume 7 sd 1 9 lout - apa 2603 b sop - 16 ( top view ) apa 2603 b r o u t - 1 n c 2 s d 3 b y p a s s 4 2 0 v d d 1 9 r o u t + 1 8 g n d 1 7 l o u t + r i n 5 1 5 l o u t - 1 4 n c 1 3 v d d 1 2 n c 1 1 n c 1 6 v d d g n d 6 l i n 7 v o l u m e 8 m u t e 9 n c 1 0 qfn 4 x 4 - 20 a ( 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 . 5 - f e b . , 2 0 1 3 w w w . a n p e c . c o m . t w 3 a p a 2 6 0 3 b a b s o l u t e m a x i m u m r a t i n g s ( n o t e 1 ) symbol parameter rating unit v dd supply voltage (vdd to gnd) - 0.3 to 6.5 input voltage (linn, rinn to gnd) - 0.3 to v dd +0.3 input voltage ( sd , mute, volume and bypass to gnd) - 0.3 to v dd +0.3 v t j maximum junction temperature 150 t stg sto rage temperature range - 65 to +150 t s dr maximum soldering temperature range , 10 seconds 260 o c p d power dissipation internally limited w n o t e 1 : s t r e s s e s b e y o n d t h o s e l i s t e d u n d e r ? a b s o l u t e m a x i m u m r a t i n g s ? m a y c a u s e p e r m a n e n t d a m a g e t o t h e d e v i c e . t h e s e a r e s t r e s s r a t i n g s o n l y a n d f u n c t i o n a l o p e r a t i o n o f t h e d e v i c e a t t h e s e o r a n y o t h e r c o n d i t i o n s b e y o n d t h o s e i n d i c a t e d u n d e r ? r e c o m m e n d e d o p e r a t i n g c o n d i t i o n s ? i s n o t i m p l i e d . e x p o s u r e t o a b s o l u t e m a x i m u m r a t i n g c o n d i t i o n s f o r e x t e n d e d p e r i o d s m a y a f f e c t d e v i c e r e l i a b i l i t y . t h e r m a l c h a r a c t e r i s t i c s symbol parameter typical value unit q ja thermal resistance - junction to ambient (note 2 ) sop - 16 qfn4x4 - 20a 80 45 o c /w q j c thermal resistance - junction to case (note 3 ) sop - 16 qfn4x4 - 20a 16 7 o c /w n o t e 2 : p l e a s e r e f e r t o ? l a y o u t r e c o m m e n d a t i o n ? , t h e p g n d p i n o n t h e c e n t r a l o f t h e i c s h o u l d c o n n e c t t o t h e g r o u n d p l a n , a n d t h e p c b i s a 2 - l a y e r , 5 - i n c h s q u a r e a r e a w i t h 2 o z c o p p e r t h i c k n e s s . 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 p g n d p i n o n t h e u n d e r s i d e o f t h e s o p - 1 6 p a c k a g e . r e c o m m e n d e d o p e r a t i n g c o n d i t i o n s range symbol parameter min max unit v dd supply voltage 3.3 5.5 v ih high l evel t hreshold v oltage sd , mute 2 v dd v il low l evel t hreshold v oltage sd, mute 0 0.8 v v icm common mode input voltage 1 v dd - 1 v t a ambient t emperature range - 40 85 t j junction temperature range - 40 125 o c r l speaker resistance 3.5 - 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 . 5 - f e b . , 2 0 1 3 w w w . a n p e c . c o m . t w 4 a p a 2 6 0 3 b e l e c t r i c a l c h a r a c t e r i s t i c s apa2603b symbol parameter test condition s min. typ. max. unit i dd supply current v mute = 0 v , v /sd = 5 v , no load - 8 20 i mute supply current (mute mode) v mute = 5 v , v /sd = 5 v , no load - 8 20 ma i sd supply current (sd mode) v mute = 0 v , v /sd = 0 v , n o load - - 1 i i input c urrent sd , mute, volume - - 1 m a f osc oscillator frequency 400 500 600 khz p - channel power mosfet 215 270 325 v dd =5.5v, i l =0.8a n - channel power mosfet 205 260 310 p - channel power mosfet 225 285 340 v dd =4.5v, i l =0.6a n - channel power mosfet 215 270 325 p - channel power mosfet 240 300 360 r dson static drain - source on - state resistance v dd =3.6v, i l =0.4a n - channel power mosfet 220 280 335 m w t start - up start - up time from shutdown bypass capacitor, c b =2.2 m f. - 1.2 2 s v dd = 5 v, t a =25 x c , gain=20db p o output power thd +n =1% f in =1 k hz r l = 4 w 2.2 2.4 - w r l = 4 w , p o = 1.7 w - 0.1 0.3 thd+n total harmonic distortion p lus noise f in =1 k hz r l = 8 w , p o = 1 w - 0.08 0.2 % crosstalk channel separation p o =0.24w, r l =4 w , f in =1khz - - 90 - 60 f in = 100 hz - - 60 - 50 psrr power supply rejection ratio r l = 4 w , input ac - ground f in = 1k hz - - 70 - 60 snr signal to noise ratio with a - weighting filter v o = 0.96w , r l =8 w 80 85 - att mute mute attenuation f in =1 k hz , r l = 8 w, v in = 1vrms - - 100 - 80 att shu tdown shutdown attenuation f in =1 k hz , r l = 8 w, v in = 1vrms - - 120 - 90 d b v n output noise w ith a - weight ing filter (gain=20db), ac=gnd - 75 100 m v rms v os output offset voltage r l = 4 w , gain=20db - 10 30 mv v dd = 3.6 v, t a =25 x c , gain=20db p o output power thd +n =1% f in =1 k hz r l = 4 w - 1.1 - w crosstalk channel separation p o =0.12w, r l =4 w , f in =1khz - - 90 - 60 f in = 100 hz - - 60 - 50 psrr power supply rejection ratio r l = 4 w , input ac - ground f in = 1k hz - - 70 - 60 snr signal to noise ratio with a - weighting filter p o = 0.96 w, r l = 8 w 80 85 - att mute mute attenuation f in =1 k hz , r l = 8 w , v in = 1v rms - - 100 - 80 att shutdown shutdown attenuation f in =1 k hz , r l = 8 w , v in = 1v rms - - 120 - 90 v n output noise w ith a - weight ing filter (gain=20db), ac=gnd - 75 100 m v rms v os output offset vo ltage r l = 4 w , gain=20db - 10 30 mv v d d = 5 v , v g n d = 0 v , t a = 2 5 o c , ( 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 . 5 - f e b . , 2 0 1 3 w w w . a n p e c . c o m . t w 5 a p a 2 6 0 3 b 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 r thd + n vs . frequency t h d + n ( % ) frequency ( hz ) 20 20 k 100 1 k 10 k 0 . 001 0 . 01 0 . 1 1 av = 20 db av = 10 db v dd = 5 v r l = 4 w po = 1 . 7 w aes - 17 ( 20 khz ) 10 thd + n vs . frequency t h d + n ( % ) frequency ( hz ) 20 20 k 100 1 k 10 k 0 . 001 0 . 01 0 . 1 1 10 av = 20 db av = 10 db v dd = 5 v r l = 8 w po = 1 w aes - 17 ( 20 khz ) output noise voltage vs . frequency frequency ( hz ) o u t p u t n o i s e v o l t a g e ( v r m s ) 20 20 k 100 1 k 10 k 20 m 40 m 60 m 80 m 100 m v dd = 3 . 6 v r l = 4 w input ac gnd aes - 17 ( 20 khz ) av = 6 db av = 14 db av = 20 db o u t p u t n o i s e v o l t a g e ( v r m s ) output noise voltage vs . frequency frequency ( hz ) 20 20 k 100 1 k 10 k 20 m 40 m 60 m 80 m 100 m v dd = 5 v r l = 4 w input ac gnd aes - 17 ( 20 khz ) av = 6 db av = 14 db av = 20 db thd + n vs . output power t h d + n ( % ) output power ( w ) 0 . 01 0 . 1 1 10 0 1 1 . 5 2 2 . 5 3 0 . 5 v dd = 5 . 5 v v dd = 5 v v dd = 3 . 6 v v dd = 3 . 3 v f = 1 khz r l = 4 w av = 20 db aes - 17 ( 20 khz ) t h d + n ( % ) thd + n vs . output power output power ( w ) 0 . 01 10 0 . 1 1 0 800 m 1 . 2 1 . 6 400 m v dd = 5 . 5 v v dd = 5 v v dd = 3 . 6 v v dd = 3 . 3 v f = 1 khz r l = 8 w av = 20 db aes - 17 ( 20 khz )
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 . 5 - f e b . , 2 0 1 3 w w w . a n p e c . c o m . t w 6 a p a 2 6 0 3 b 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 frequence response g a i n ( d b ) frequency ( hz ) 20 100 k 100 1 k 20 k 0 + 6 + 10 + 20 v dd = 3 . 6 v r l = 4 w po = 150 mw av = 0 db av = 20 db av = 6 db p h a s e ( d e g ) + 180 + 0 + 100 + 360 + 260 + 16 phase , av = 20 db phase , av = 6 db phase , av = 0 db frequence response g a i n ( d b ) frequency ( hz ) 20 100 k 100 1 k 20 k 0 + 6 + 10 + 20 p h a s e ( d e g ) + 180 + 0 + 100 + 360 + 260 + 16 v dd = 5 v r l = 8 w po = 150 mw av = 0 db av = 20 db av = 6 db phase , av = 20 db phase , av = 6 db phase , av = 0 db shutdown attenuation vs . frequence g a i n ( d b ) frequency ( hz ) 20 20 k 100 1 k 10 k - 140 - 120 - 100 - 60 - 80 v dd = 5 v r l = 8 w av = 20 db vo = 1 vrms aes - 17 ( 20 khz ) mute attenuation vs . frequence frequency ( hz ) 20 20 k 100 1 k 10 k - 100 - 90 - 80 - 60 - 60 - 40 v dd = 5 v r l = 8 w av = 20 db vo = 1 vrms aes - 17 ( 20 khz ) psrr vs frequency p s r r ( d b ) frequency ( hz ) - 70 + 0 - 40 - 30 - 20 20 20 k 100 1 k 10 k - 60 - 50 - 10 v dd = 5 v r l = 4 w av = 20 db vrr = 0 . 2 vrms aes - 17 ( 20 khz ) input to gnd input floating frequency ( hz ) c r o s s t a l k ( d b ) crosstalk vs . frequency 20 20 k 100 1 k 10 k r - channel to l - channel l - channel to r - channel - 100 - 60 - 80 - 70 - 90 v dd = 5 v r l = 4 w po = 0 . 24 w aes - 17 ( 20 khz )
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 . 5 - f e b . , 2 0 1 3 w w w . a n p e c . c o m . t w 7 a p a 2 6 0 3 b 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 supply current vs . supply voltage s u p p l y c u r r e n t ( m a ) supply voltage ( v ) 0 6 2 4 1 3 5 0 1 2 3 4 5 no load shutdown current vs . supply voltage s u p p l y c u r r e n t ( m a ) supply voltage ( v ) 0 6 2 4 1 3 5 0 . 1 0 . 2 0 . 3 0 . 4 0 . 5 0 . 6 agc function output power vs . input ac o u t p u t p o w e r ( w ) input ac ( vrms ) 0 . 4 1 . 6 2 . 0 2 . 4 0 . 2 1 . 2 0 . 4 0 . 6 0 . 8 0 . 8 1 . 2 2 . 8 1 . 4 1 v dd = 5 v r l = 4 w av = 20 db aes - 17 ( 20 khz ) frequency ( hz ) crosstalk vs . frequency c r o s s t a l k ( d b ) 20 20 k 100 1 k 10 k - 60 - 90 - 80 - 100 - 70 r - channel to l - channel l - channel to r - channel v dd = 3 . 3 v r l = 4 w po = 0 . 12 w aes - 17 ( 20 khz ) agc function output power vs . input ac input ac ( vrms ) o u t p u t p o w e r ( w ) 0 . 2 0 . 8 1 . 0 1 . 2 0 . 4 0 . 6 1 . 4 0 . 2 1 . 2 0 . 4 0 . 6 0 . 8 1 . 4 1 v dd = 5 v r l = 8 w av = 20 db aes - 17 ( 20 khz ) gain vs . volume voltage g a i n ( d b ) dc volume voltage ( v ) 0 1 2 3 4 5 gain down gain up - 60 20 0 - 20 - 40 vdd = 5 . 0 v no load aux - 0025 aes - 17 ( 20 khz )
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 . 5 - f e b . , 2 0 1 3 w w w . a n p e c . c o m . t w 8 a p a 2 6 0 3 b 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 efficiency vs . output power ( 4 w ) output power ( w ) e f f i c i e n c y ( % ) 2 . 5 0 . 5 1 . 5 0 100 10 50 80 0 1 2 20 30 40 60 70 90 v dd = 5 v v dd = 3 . 3 v r l = 4 w + 33 mh fin = 1 khz av = 20 db aes - 17 ( 20 khz ) efficiency vs . output power ( 8 w ) output power ( w ) e f f i c i e n c y ( % ) 1 0 . 2 0 . 6 0 100 10 50 80 0 0 . 4 0 . 8 20 30 40 60 70 90 v dd = 5 v v dd = 3 . 3 v r l = 8 w + 33 mh fin = 1 khz av = 20 db aes - 17 ( 20 khz )
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 . 5 - f e b . , 2 0 1 3 w w w . a n p e c . c o m . t w 9 a p a 2 6 0 3 b pin no. sop - 16 qfn4x4 - 20a name i/o/p function 1 3 sd i shutdown m ode c ontrol i nput, p lace e ntire ic in s hutdown m ode w hen h eld l ow. 2 4 bypass p bias voltage for power amplifiers. 3 5 rin i n egative i nput of right channel power amplifier . 4,5,12 ,1 3 6,18 gnd p ground connection. 6 7 lin i n egative i nput of left channel power amplifier . 7 8 volume i to set the amplifier ? s gain by using the dc voltage. 8 9 mute i mute control signal input, hold low for normal operation, hold high to mute. 9 15 l out - o negative output of left channel power amplifier. 10,15 13,16,20 vdd p power supply. 11 17 lout+ o positive output of left channel power amplifier. 14 19 rout+ o positive output of right channel power amplifier. 16 1 rout - o negative output of ri ght channel power amplifier. p i n d e s c r i p t i o n t y p i c a l a p p l i c a t i o n c i r c u i t 4 gnd gnd 13 8 mute 5 gnd vdd 15 6 lin gnd 12 2 bypass rout + 14 3 rin rout - 16 lout + 11 vdd 10 7 volume 1 sd lout - 9 apa 2603 b ( top view ) 1 m f c i 1 1 m f shutdown control mute control 0 . 1 m f 10 m f v dd right channel input signal left channel input signal 4 w 4 w 2 . 2 m f c b 0 . 1 m f v dd r 1 50 k w c i 2 c s 1 c s 2 c s 3
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 . 5 - f e b . , 2 0 1 3 w w w . a n p e c . c o m . t w 1 0 a p a 2 6 0 3 b b l o c k d i a g r a m protection function gate drive gate drive rout + vdd rout - rin oscillator volume lin shutdown control gate drive gate drive lout + vdd lout - volume control biases & reference mute control sd mute bypass bypass gnd agc control
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 5 - f e b . , 2 0 1 3 w w w . a n p e c . c o m . t w 1 1 a p a 2 6 0 3 b d c v o l u m e c o n t r o l t a b l e down (%) down ( v ) up (%) up (v) step gain (db) volume h to l volume l to h recom ( % ) recom(v) 1 20.0 1.70 0.09 0.00 0.00 0.00 0.00 2 19.6 3.25 0.16 2.20 0.11 2.73 0.14 3 19.2 4.80 0.24 3.75 0.19 4.28 0.21 4 18.8 6.35 0.32 5.30 0.27 5.83 0.29 5 18.4 7.90 0.40 6.85 0.34 7.38 0.37 6 18.0 9.45 0.47 8.40 0.42 8.93 0.45 7 17.6 11.00 0.55 9.95 0.50 10.48 0.52 8 17.2 12.55 0.63 11.50 0.58 12.03 0.60 9 16.8 14.10 0.71 13.05 0.65 13.58 0.68 10 16.4 15.65 0.78 14.60 0.73 15.13 0.76 11 16.0 17.20 0.86 16. 15 0.81 16.68 0.83 12 15.6 18.75 0.94 17.70 0.89 18.23 0.91 13 15.2 20.30 1.02 19.25 0.96 19.78 0.99 14 14.8 21.85 1.09 20.80 1.04 21.33 1.07 15 14.4 23.40 1.17 22.35 1.12 22.88 1.14 16 14.0 24.95 1.25 23.90 1.20 24.43 1.22 17 13.6 26.50 1.33 25.45 1 .27 25.98 1.30 18 13.2 28.05 1.40 27.00 1.35 27.53 1.38 19 12.8 29.60 1.48 28.55 1.43 29.08 1.45 20 12.4 31.15 1.56 30.10 1.51 30.63 1.53 21 12.0 32.70 1.64 31.65 1.58 32.18 1.61 22 11.6 34.25 1.71 33.20 1.66 33.73 1.69 23 11.2 35.80 1.79 34.75 1.74 35.28 1.76 24 10.8 37.35 1.87 36.30 1.82 36.83 1.84 25 10.4 38.90 1.95 37.85 1.89 38.38 1.92 26 10.0 40.45 2.02 39.40 1.97 39.93 2.00 27 9.6 42.00 2.10 40.95 2.05 41.48 2.07 28 9.2 43.55 2.18 42.50 2.13 43.03 2.15 29 8.8 45.10 2.26 44.05 2.20 44.58 2.23 30 8.4 46.65 2.33 45.60 2.28 46.13 2.31 31 8.0 48.20 2.41 47.15 2.36 47.68 2.38 32 7.6 49.75 2.49 48.70 2.44 49.23 2.46 v d d = 5 v , v g n d = 0 v , 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 . 5 - f e b . , 2 0 1 3 w w w . a n p e c . c o m . t w 1 2 a p a 2 6 0 3 b d c v o l u m e c o n t r o l t a b l e ( c o n t . ) down (%) down ( v ) up (%) up (v) step gain (db) volume h to l volume l to h recom ( % ) recom(v) 33 7.2 51.30 2.57 50.25 2.51 50.78 2.54 34 6.8 52.85 2.64 51.80 2.59 52.33 2.62 35 6.4 54.40 2.72 53.35 2.67 53.88 2.69 36 6.0 55.95 2.80 54.90 2.75 55.43 2.77 37 5.6 57.50 2.88 56.45 2.82 56.98 2.85 38 5.2 59.05 2.95 58.00 2.90 58.53 2.93 39 4.8 60.60 3.03 59.55 2.98 60.08 3.00 40 4.4 62.15 3.11 61.10 3.06 61.63 3.08 41 4.0 63.70 3.19 62.65 3.13 63.18 3.16 42 3.6 65.25 3.26 64.20 3.21 64.73 3.24 43 3 .2 66.80 3.34 65.75 3.29 66.28 3.31 44 2.8 68.35 3.42 67.30 3.37 67.83 3.39 45 2.4 69.90 3.50 68.85 3.44 69.38 3.47 46 2.0 71.45 3.57 70.40 3.52 70.93 3.55 47 1.6 73.00 3.65 71.95 3.60 72.47 3.62 48 1.2 74.55 3.73 73.50 3.68 74.02 3.70 49 0.8 76.10 3 .81 75.05 3.75 75.57 3.78 50 0.4 77.65 3.88 76.60 3.83 77.12 3.86 51 0.0 79.20 3.96 78.15 3.91 78.67 3.93 52 - 1.0 80.75 4.04 79.70 3.99 80.22 4.01 53 - 2.0 82.30 4.12 81.25 4.06 81.77 4.09 54 - 3.0 83.85 4.19 82.80 4.14 83.32 4.17 55 - 5.0 85.40 4.27 84 .35 4.22 84.87 4.24 56 - 7.0 86.95 4.35 85.90 4.30 86.42 4.32 57 - 9.0 88.50 4.43 87.45 4.37 87.97 4.40 58 - 11.0 90.05 4.50 89.00 4.45 89.52 4.48 59 - 17.0 91.60 4.58 90.55 4.53 91.07 4.55 60 - 23.0 93.15 4.66 92.10 4.61 92.62 4.63 61 - 29.0 94.70 4.74 93 .65 4.68 94.17 4.71 62 - 35.0 96.25 4.81 95.20 4.76 95.72 4.79 63 - 41.0 97.80 4.89 96.75 4.84 97.27 4.86 64 - 80.0 100.00 5.00 98.30 4.92 100.00 5.00 v d d = 5 v , v g n d = 0 v , 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 . 5 - f e b . , 2 0 1 3 w w w . a n p e c . c o m . t w 1 3 a p a 2 6 0 3 b f u n c t i o n d e s c r i p t i o n class-d operation f i g u r e 1 . t h e a p a 2 6 0 3 b o u t p u t w a v e f o r m ( v o l t a g e & c u r r e n t ) t h e a p a 2 6 0 3 b p o w e r a m p l i f i e r m o d u l a t i o n s c h e m e i s s h o w n i n f i g u r e 1 ; t h e o u t p u t s v o u t + a n d v o u t n a r e i n p h a s e w i t h e a c h o t h e r w h e n n o i n p u t s i g n a l s . w h e n o u t p u t > 0 v , t h e d u t y c y c l e o f v o u t + i s g r e a t e r t h a n 5 0 % a n d v o u t - i s l e s s t h a n 5 0 % ; w h e n o u t p u t < 0 v , t h e d u t y c y c l e o f v o u t + i s l e s s t h a n 5 0 % a n d v o u t - i s g r e a t e r t h a n 5 0 % . t h i s m e t h o d r e d u c e s t h e s w i t c h i n g c u r r e n t a c r o s s t h e l o a d , a n d r e - d u c e s t h e i 2 r l o s s e s i n t h e l o a d t h a t i m p r o v e t h e a m p l i f i e r ? s e f f i c i e n c y . t h i s m o d u l a t i o n s c h e m e h a s v e r y s h o r t p u l s e s a c r o s s t h e l o a d , t h i s m a k i n g t h e s m a l l r i p p l e c u r r e n t a n d v e r y l i t t l e l o s s o n t h e l o a d , a n d t h e l c f i l t e r c a n b e e l i m i n a t e i n m o s t a p p l i c a t i o n s . a d d e d t h e l c f i l t e r c a n i n c r e a s e t h e e f f i c i e n c y b y f i l t e r t h e r i p p l e c u r r e n t . bypass voltage the bypass voltage is equal to v dd /2, this voltage is for bias the internal preamplifier stages. the external ca- pacitor for this reference (c 1 ) is a critical component and serves several important functions. dc volume control function t h e a p a 2 6 0 3 b 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 w h o s e 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 6 0 3 b v o l u m e c o n t r o l c o n - s i s t s o f 6 4 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 h e 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 ? d c v o l u m e c o n t r o l g r a p h ? . 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 s l e v e l h a v e a r e 0 . 4 d b / s t e p f r o m 2 0 d b t o 0 d b ; 1 d b / s t e p f r o m 0 d b t o - 3 d b ; 2 d b / s t e p f r o m - 3 d b t o - 1 1 d b a n d 6 d b / s t e p f r o m - 1 1 d b t o - 4 1 d b 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 . v out + v out ( v out + - v out - ) i out i out output = 0 v output > 0 v i out output < 0 v v out - v out + v out - v out - v out + v out ( v out + - v out - ) v out ( v out + - v out - )
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 . 5 - f e b . , 2 0 1 3 w w w . a n p e c . c o m . t w 1 4 a p a 2 6 0 3 b f u n c t i o n d e s c r i p t i o n ( c o n t . ) agc (non-clipping) function t h e a p a 2 6 0 3 b p r o v i d e s t h e 6 4 s t e p s n o n - c l i p p i n g c o n t r o l , a n d t h e r a n g e i s f r o m 2 0 d b t o - 8 0 d b . w h e n t h e o u t p u t r e a c h e s t h e m a x i m u m p o w e r s e t t i n g v a l u e , t h e i n t e r n a l p r o g r a m m a b l e g a i n a m p l i f i e r ( p g a ) w i l l d e c r e a s e t h e g a i n f o r p r e v e n t t h e o u t p u t w a v e f o r m c l i p p i n g . t h i s f e a t u r e p r e - v e n t s s p e a k e r d a m a g e f r o m o c c u r r i n g c l i p p i n g . t h e a g c p i n t o s e t t h e n o n - c l i p p i n g f u n c t i o n . shutdown operation i n o r d e r t o r e d u c e p o w e r c o n s u m p t i o n w h i l e n o t i n u s e , t h e a p a 2 6 0 3 b c o n t a i n s a s h u t d o w n f u n c t i o n t o e x t e r n a l l y t u r n o f f t h e a m p l i f i e r b i a s c i r c u i t r y . t h i s s h u t d o w n f e a t u r e t u r n s t h e a m p l i f i e r o f f w h e n l o g i c l o w i s p l a c e d o n t h e s d p i n f o r a p a 2 6 0 3 b . 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 1 . 5 v . i t i s t h e b e s t t o s w i t c h b e t w e e n g r o u n d a n d t h e s u p p l y v o l t a g e v d d t o p r o v i d e m a x i m u m d e v i c e p e r f o r m a n c e . b y s w i t c h i n g t h e s d p i n t o a l o w l e v e l , t h e a m p l i f i e r e n t e r s a l o w - c o n s u m p t i o n - c u r r e n t s t a t e , i d d f o r a p a 2 6 0 3 b 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 , a p a 2 6 0 3 b ? s s d p i n s h o u l d p u l l t o a h i g h l e v e l t o k e e p t h e i c o u t o f t h e s h u t d o w n m o d e . t h e s d p i n s h o u l d b e t i e d t o a d e f i n i t e v o l t a g e t o a v o i d u n - w a n t e d s t a t e c h a n g e s . over-current protection t h e a p a 2 6 0 3 b m o n i t o r s t h e o u t p u t c u r r e n t , a n d w h e n t h e c u r r e n t e x c e e d s t h e c u r r e n t - l i m i t t h r e s h o l d , t h e a p a 2 6 0 3 b t u r n - o f f t h e o u t p u t s t a g e t o p r e v e n t t h e o u t p u t d e v i c e f r o m d a m a g e s i n o v e r - c u r r e n t o r s h o r t - c i r c u i t c o n d i t i o n . t h e i c w i l l t u r n - o n t h e o u t p u t b u f f e r a f t e r 2 0 0 m s , b u t i f t h e o v e r - c u r r e n t o r s h o r t - c i r c u i t s c o n d i t i o n i s s t i l l r e m a i n , i t e n t e r s t h e o v e r - c u r r e n t p r o t e c t i o n a g a i n . thermal protection t h e o v e r - t e m p e r a t u r e c i r c u i t l i m i t s t h e j u n c t i o n t e m p e r a - t u r e o f t h e a p a 2 6 0 3 b . 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 e x - c e e d s t j = + 1 5 5 o c , a t h e r m a l s e n s o r t u r n s o f f t h e o u t p u t b u f f e r , a l l o w i n g t h e d e v i c e s t o c o o l . t h e t h e r m a l s e n s o r a l l o w s t h e a m p l i f i e r t o s t a r t - u p a f t e r t h e j u n c t i o n t e m p e r a - t u r e d o w n a b o u t 1 2 5 o c . t h e t h e r m a l p r o t e c t i o n i s d e - s i g n e d w i t h a 2 5 o c h y s t e r e s i s t o l o w e r t h e a v e r a g e t j d u r i n g c o n t i n u o u s t h e r m a l o v e r l o a d c o n d i t i o n s , i n c r e a s - i n g l i f e t i m e o f t h e i c . mute operation w h e n p l a c e t h e l o g i c h i g h o n m u t e p i n , t h e a p a 2 6 0 3 b ? s o u t p u t s r u n s a t a c o n s t a n t 5 0 % d u t y c y c l e , a n d t h e a p a 2 6 0 3 b i s a t m u t e s t a t e . p l a c e t h e l o g i c l o w o n m u t e p i n e n a b l e s t h e o u t p u t s , a n d t h e o u t p u t c h a n g e s t h e d u t y c y c l e w i t h t h e i n p u t s i g n a l . t h i s p i n c o u l d b e u s e d a s a q u i c k d i s a b l e / e n a b l e o f o u t p u t s w h e n c h a n g i n g c h a n n e l s o n a t e l e v i s i o n o r t r a n s i t i o n i n g b e t w e e n d i f f e r e n t a u d i o s o u r c e s . t h e m u t e p i n m u s t n o t b e f l o a t i n g . t h e s i t u a t i o n w i l l c i r c u l a t e u n t i l t h e o v e r - c u r r e n t o r s h o r t - c i r c u i t s h a s b e r e m o v 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 . 5 - f e b . , 2 0 1 3 w w w . a n p e c . c o m . t w 1 5 a p a 2 6 0 3 b a p p l i c a t i o n i n f o r m a t i o n square wave into the speaker a p p l y t h e s q u a r e w a v e i n t o t h e s p e a k e r m a y c a u s e t h e v o i c e c o i l o f s p e a k e r j u m p i n g o u t t h e a i r g a p a n d d e f a c i n g t h e v o i c e c o i l . h o w e v e r , t h i s d e p e n d s o n t h e a m p l i t u d e o f s q u a r e w a v e i s h i g h e n o u g h a n d t h e b a n d w i d t h o f s p e a k e r i s h i g h e r t h a n t h e s q u a r e w a v e ? | s f r e q u e n c y . f o r 5 0 0 k h z s w i t c h i n g f r e q u e n c y , t h i s i s n o t i s s u e d f o r t h e s p e a k e r b e c a u s e t h e f r e q u e n c y i s b e y o n d t h e a u d i o b a n d a n d c a n ? | t s i g n i f i c a n t l y m o v e t h e v o i c e c o i l , a s c o n e m o v e m e n t i s p r o p o r t i o n a l t o 1 / f 2 f o r f r e q u e n c y o u t o f a u d i o b a n d . input resistor, r i f o r a c h i e v i n g t h e 6 4 s t e p s g a i n s e t t i n g , i t v a r i e s t h e i n p u t r e s i s t a n c e n e t w o r k ( r i & r f ) o f a m p l i f i e r . t h e i n p u t r e s i s t o r ? s r a n g e f o r m s m a l l e s t t o m a x i m u m i s a b o u t 3 . 5 t i m e s . t h e r e f o r e , t h e i n p u t h i g h - p a s s f i l t e r ? s l o w c u t o f f f r e q u e n c y w i l l c h a n g e 3 . 5 t i m e s f r o m l o w t o h i g h . t h e c u t o f f f r e q u e n c y c a n b e c a l c u l a t e d b y e q u a t i o n 1 . input capacitor, 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 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 : ( 1 ) i i ) c(highpass c r 2 1 f p = t h e v a l u e o f c i m u s t b e c o n s i d e r e d c a r e f u l l y b e c a u s e i t d i r e c t l y a f f e c t s t h e l o w f r e q u e n c y p e r f o r m a n c e o f t h e c i r c u i t . w h e r e r i i s 3 6 k w ( m i n i m u m ) 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 . 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 : ( 2 ) c i i f r 2 1 c p = 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 . 0 8 m f , s o a v a l u e i n t h e r a n g e o f 0 . 0 1 m f t o 0 . 0 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 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 s ? i n p u t i n m o s t a p p l i c a t i o n s b e c a u s e t h e d c l e v e l o f t h e a m p l i f i e r s ? i n p u t s a r e h e l d a t v d d / 2 . p l e a s e n o t e t h a t i t i s i m p o r t a n t t o c o n f i r m t h e c a p a c i t o r p o l a r i t y i n t h e a p p l i c a t i o n . effective bypass capacitor, c b as with any power amplifier, proper supply bypassing is critical for low noise performance and high power supply rejection. the bypass capacitance effects the start-up time. it is determined in the following equation: t start-up =0.5(sec/ m f)xc1+0.2(sec) (3) the capacitor location on the bypass pin should be as close to the device as possible. the effect of a larger half bypass capacitor is improved psrr due to increased half-supply stability. the selection of bypass capacitors, especially c b , is thus dependent upon desired psrr requirements, click and pop performance. to avoid the start-up pop noise occurred, choose c i which is not larger than c b . 20 30 40 50 60 70 80 90 100 110 120 130 140 - 40 - 35 - 30 - 25 - 20 - 15 - 10 - 5 0 5 10 15 20 gain vs . input resistance i n p u t r e s i s t a n c e ( k w ) gain ( db )
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 . 5 - f e b . , 2 0 1 3 w w w . a n p e c . c o m . t w 1 6 a p a 2 6 0 3 b a p p l i c a t i o n i n f o r m a t i o n ( c o n t . ) f i g u r e 2 . f e r r i t e b e a d o u t p u t f i l t e r v on v op 4 w 1n f 1n f ferrite bead ferrite bead f i g u r e 3 a n d 4 a r e e x a m p l e s f o r a d d e d t h e l c f i l t e r ( b u t t e r w o r t h ) , i t ? s r e c o m m e n d e d f o r t h e s i t u a t i o n t h a t t h e t r a c e f o r m a m p l i f i e r t o s p e a k e r i s t o o l o n g a n d n e e d s t o e l i m i n a t e t h e r a d i a t e d e m i s s i o n o r e m i . f i g u r e 3 . l c o u t p u t f i l t e r f o r 8 w s p e a k e r outp outn 8 w 1 m f 36 m h 36 m h 1 m f f i g u r e 4 . l c o u t p u t f i l t e r f o r 4 w s p e a k e r outp outn 4 w 2.2 m f 18 m h 18 m h 2.2 m f f i g u r e 3 a n d 4 ? s l o w p a s s f i l t e r c u t - o f f f r e q u e n c y a r e 2 5 k h z ( f c ) . lc 2 1 f c(lowpass) p = ( 5 ) power-supply decoupling capacitor, c s t h e a p a 2 6 0 3 b 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 ) 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 . ferrite bead selection i f t h e t r a c e s f o r m a p a 2 6 0 3 b t o s p e a k e r a r e s h o r t , t h e f e r - r i t e b e a d f i l t e r s c a n r e d u c e t h e h i g h f r e q u e n c y r a d i a t e d t o m e e t t h e f c c & c e r e q u i r e d . a f e r r i t e t h a t h a s v e r y l o w i m p e d a n c e a t l o w f r e q u e n c i e s a n d h i g h i m p e d a n c e a t h i g h f r e q u e n c i e s ( a b o v e 1 m h z ) i s r e c o m m e n d e d . i f t h e t r a c e s f o r m a p a 2 6 0 3 b t o s p e a k e r a r e s h o r t , i t d o e s n ? t r e q u i r e o u t p u t f i l t e r f o r f c c & c e s t a n d a r d . a f e r r i t e b e a d m a y b e n e e d e d i f i t ? s f a i l i n g t h e t e s t f o r f c c o r c e t e s t e d w i t h o u t t h e l c f i l t e r . t h e f i g u r e 2 i s t h e s a m p l e f o r a d d e d f e r r i t e b e a d ; t h e f e r r i t e s h o w s c h o o s i n g h i g h i m p e d a n c e i n h i g h f r e q u e n c y . output low-pass filter
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 . 5 - f e b . , 2 0 1 3 w w w . a n p e c . c o m . t w 1 7 a p a 2 6 0 3 b a p p l i c a t i o n i n f o r m a t i o n ( c o n t . ) layout recommendation f i g u r e 5 . s o p - 1 6 p & s o p - 2 4 c o - l a y o u t l a n d p a t t e r n r e c o m m e n d a t i o n 1 . a l l c o m p o n e n t s s h o u l d b e p l a c e d c l o s e t o t h e a p a 2 6 0 3 b . f o r e x a m p l e , t h e i n p u t c a p a c i t o r ( c i ) s h o u l d b e c l o s e t o a p a 2 6 0 3 b ? s i n p u t p i n s t o a v o i d c a u s i n g n o i s e c o u p l i n g t o a p a 2 6 0 3 b ? | s h i g h i m p e d a n c e i n p u t s ; t h e d e c o u p l i n g c a p a c i t o r ( c s ) s h o u l d b e p l a c e d b y t h e a p a 2 6 0 3 b ? s p o w e r p i n t o d e c o u p l e t h e p o w e r r a i l n o i s e . 2 . t h e o u t p u t t r a c e s s h o u l d b e s h o r t , w i d e ( > 5 0 m i l ) a n d s y m m e t r i c . 3 . t h e i n p u t t r a c e s h o u l d b e s h o r t a n d s y m m e t r i c . 4 . t h e p o w e r t r a c e w i d t h s h o u l d g r e a t e r t h a n 5 0 m i l . 5 . a p a 2 6 0 3 b a n d a p a 2 6 0 3 a s h a r e t h e p i n 9 ~ 1 6 t o a v o i d s o l d e r i n g s h o r t . a p a 2 6 0 3 b ? s l e f t h a l f p a d s a r e c o n - n e c t e d t o a p a 2 6 0 3 a b y l i n e s . the optimum decoupling is achieved by using two differ- ent types of capacitors that target on different types of noise on the power supply leads. for higher frequency transients, spikes, or digital hash on the line, a good low equivalent-series-resistance (esr) ceramic capacitor, typically 0.1 m f placed as close as possible to the device vdd pin for works best. for filtering lower frequency noise signals, a large aluminum electrolytic capacitor of 10 m f or greater placed near the audio power amplifier is recommended. power-supply decoupling capacitor, c s (cont.) 0 . 7 mm 2 . 54 mm 1 . 27 mm 5 . 5 mm 2 . 0 mm 11 . 05 mm 0 . 27 mm f i g u r e 6 . q f n 4 x 4 - 2 0 a l a n d p a t t e r n r e c o m m e n d a t i o n 1 . a l l c o m p o n e n t s s h o u l d b e p l a c e d c l o s e t o t h e a p a 2 6 0 3 b . f o r e x a m p l e , t h e i n p u t c a p a c i t o r ( c i ) s h o u l d b e c l o s e t o a p a 2 6 0 3 b ? s i n p u t p i n s t o a v o i d c a u s i n g n o i s e c o u p l i n g t o a p a 2 6 0 3 b ? s h i g h i m p e d a n c e i n p u t s ; t h e d e c o u p l i n g c a p a c i t o r ( c s ) s h o u l d b e p l a c e d b y t h e a p a 2 6 0 3 b ? s p o w e r p i n t o d e c o u p l e t h e p o w e r r a i l n o i s e . 2 . t h e o u t p u t t r a c e s s h o u l d b e s h o r t , w i d e ( > 5 0 m i l ) , a n d s y m m e t r i c . 3 . t h e i n p u t t r a c e s h o u l d b e s h o r t a n d s y m m e t r i c . 4 . t h e p o w e r t r a c e w i d t h s h o u l d g r e a t e r t h a n 5 0 m i l . 5 . t h e q f n 4 x 4 - 2 0 a t h e r m a l p a d s h o u l d b e s o l d e r e d o n p c b , a n d t h e g r o u n d p l a n e n e e d s s o l d e r e d m a s k ( t o a v o i d s h o r t - c i r c u i t ) e x c e p t t h e t h e r m a l p a d a r e a . 0.5mm 0.28mm 2.2mm ground plane for thermal pad thermalvia diameter 0.3mm x 5 3 . 2 m m 1mm solder mask to prevent short-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 . 5 - f e b . , 2 0 1 3 w w w . a n p e c . c o m . t w 1 8 a p a 2 6 0 3 b p a c k a g e i n f o r m a t i o n s o p - 1 6 0 l view a 0 . 2 5 seating plane gauge plane d e e 1 e h x 4 5 o c see view a b max . 0 . 069 0 . 010 0 . 050 0 . 020 0 . 010 0 . 020 0 . 25 0 . 31 0 . 17 0 . 40 e l h e 1 e d c b 0 . 050 bsc 1 . 27 bsc 1 . 27 8 o 0 . 016 0 . 010 0 . 25 0 . 51 0 . 228 0 . 007 0 . 012 1 . 25 0 . 10 min . millimeters s y m b o l a 2 a 1 a sop - 16 max . 1 . 75 0 . 15 min . 0 . 004 0 . 049 inches 6 . 20 0 . 50 0 . 244 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 . q 0 o 8 o 0 . 394 0 . 374 0 . 157 0 . 150 9 . 80 10 . 00 3 . 80 5 . 80 4 . 00 0 o a a 2 a 1 nx aaa c aaa 0 . 10 0 . 004
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 5 - f e b . , 2 0 1 3 w w w . a n p e c . c o m . t w 1 9 a p a 2 6 0 3 b p a c k a g e i n f o r m a t i o n qfn4x4-20a note : 1. followed from jedec mo-220 vggd-5. s y m b o l min. max. 1.00 0.00 0.18 0.30 2.00 2.50 0.05 2.00 a a1 b d d2 e e2 e l millimeters a3 0.20 ref qfn4x4-20a 0.35 0.45 2.50 0.008 ref min. max. inches 0.039 0.000 0.008 0.012 0.079 0.098 0.079 0.014 0.018 0.80 0.098 0.031 0.002 0.50 bsc 0.020 bsc k 0.20 0.008 3.90 4.10 0.154 0.161 3.90 4.10 0.154 0.161 e pin 1 corner e 2 k l d2 a1 a3 b a d e pin 1
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 5 - f e b . , 2 0 1 3 w w w . a n p e c . c o m . t w 2 0 a p a 2 6 0 3 b 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 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 - 0.4 0 6.40 ? 0.20 10.30 ? 0.20 2.10 ? 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 5.5 ? 0.05 p 0 p1 p 2 d 0 d1 t a 0 b 0 k 0 qfn4x4 - 20a 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 (mm) package type unit quantity qfn4x4 - 20a tape & reel 3000 sop - 16 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 . 5 - f e b . , 2 0 1 3 w w w . a n p e c . c o m . t w 2 1 a p a 2 6 0 3 b 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 s o p - 1 6 user direction of feed qfn4x4-20a 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 . 5 - f e b . , 2 0 1 3 w w w . a n p e c . c o m . t w 2 2 a p a 2 6 0 3 b 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 . 5 - f e b . , 2 0 1 3 w w w . a n p e c . c o m . t w 2 3 a p a 2 6 0 3 b profile feature sn - pb eutectic assembly pb - free assembly preheat & soak temperature min (t smin ) temperature max (t smax ) time (t smin to t smax ) ( t s ) 100 c 150 c 60 - 120 seconds 150 c 200 c 60 - 1 2 0 seconds average ramp - up rate (t smax to t p ) 3 c/second ma x. 3 c/second max. liquidous temperature ( t l ) time at l iquidous (t l ) 183 c 60 - 150 seconds 217 c 60 - 150 seconds peak package body temperature (t p ) * see classification temp in table 1 see classification temp in table 2 time (t p ) ** within 5 c of the spec ified c lassification t emperature ( t c ) 2 0 ** seconds 3 0 ** seconds average r amp - down rate (t p to t smax ) 6 c/second max. 6 c/second max. time 25 c to p eak t emperature 6 minutes max. 8 minutes max. * tolerance for peak profile temperature (t p ) is defined a s a supplier minimum and a user maximum. ** tolerance for time at peak profile temperature (t p ) is defined as a supplier minimum and a user maximum. c l a s s i f i c a t i o n r e f l o w p r o f i l e s 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 @ tj=125 c pct jesd - 22, a102 168 hrs, 100 % rh, 2atm , 121 c tct jesd - 22, a104 500 cycles, - 65 c~150 c hbm mil - std - 883 - 3015.7 vhbm ? 2kv mm jesd - 22, a1 15 vmm ? 200v latch - up jesd 78 10ms, 1 tr ? 100ma
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 . 5 - f e b . , 2 0 1 3 w w w . a n p e c . c o m . t w 2 4 a p a 2 6 0 3 b c u s t o m e r s e r v i c e a n p e c e l e c t r o n i c s c o r p . head office : no.6, dusing 1st road, sbip, hsin-chu, taiwan tel : 886-3-5642000 fax : 886-3-5642050 t a i p e i b r a n c h : 2 f , n o . 1 1 , l a n e 2 1 8 , s e c 2 j h o n g s i n g r d . , s i n d i a n c i t y , t a i p e i c o u n t y 2 3 1 4 6 , t a i w a n t e l : 8 8 6 - 2 - 2 9 1 0 - 3 8 3 8 f a x : 8 8 6 - 2 - 2 9 1 7 - 3 8 3 8

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