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c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 4 - s e p . , 2 0 1 1 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 . m o n o / s t e r e o h i g h - p o w e r c l a s s - d a m p l i f i e r a p a 2 6 1 5 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 o p e r a t i n g v o l t a g e : 8 . 0 v - 1 6 . 5 v h i g h e f f i c i e n c y 9 0 % a t p o = 1 0 w , 8 w s p e a k e r , v d d = 1 2 v l o w s h u t d o w n c u r r e n t ?v i d d = 5 m a a t v d d = 1 6 . 5 v p o w e r l i m i t f u n c t i o n s w i t c h a b l e n o n - c l i p f u n c t i o n / d r c ( d y n a m i c r a n g e c o n t r o l ) f u n c t i o n b u i l d - i n o s c i l l a t o r s p r e a d c l o c k f u n c t i o n e x t e r n a l s y n c h r o n i z a t i o n f u n c t i o n m a s t e r / s l a v e r s y n c h r o n i z a t i o n f u n c t i o n d c d e t e c t i o n f u n c t i o n s t e r e o / m o n a u r a l f u n c t i o n s h u t d o w n a n d m u t e f u n c t i o n 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 p i n - t o - p i n c o m p a t i b l e y d a 1 4 8 s p a c e s a v i n g p a c k a g e q f n 5 . 2 x 6 . 2 - 3 2 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 ) 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 t h e a p a 2 6 1 5 i s a s t e r e o , h i g h e f f i c i e n c y , c l a s s - d a u d i o a m p l i f i e r a v a i l a b l e i n a q f n 5 . 2 x 6 . 2 - 3 2 p a c k a g e . t h e f i l t e r - f r e e c l a s s - d a r c h i t e c t u r e e l i m i n a t e s t h e e x t e r - n a l l o w p a s s f i l t e r s , a n d s a v e t h e p c b s p a c e a n d b o m c o s t s . t h e a p a 2 6 1 5 a l s o h a s a s p r e a d c l o c k f u n c t i o n t h a t r e d u c e s t h e h i g h f r e q u e n c y r a d i a t i o n a n d l o w t h e e m i n o i s e . t h e z e r o - c r o s s i n g - c h a n g e f u n c t i o n c h a n g e s t h e g a i n w h e n b o t h o u t p u t ( v o u t p a n d v o u t n ) c r o s s i n g t o g e t h e r c a n m i n i m u m t h e p o p n o i s e . t h e p o w e r l i m i t f u n c t i o n c a n p r o t e c t t h e s p e a k e r w h e n o u t p u t s i g n a l e x c e s s t h e s p e a k e r l i m i t r a t i n g . t h e n o n - c l i p a n d d r c f u n c t i o n s a r e e l i m i n a t e t h e d i s t o r t i o n a t l a r g e i n p u t s i g n a l , a n d c a n f i t t h e h i g h d y n a m i c i n p u t s i g n a l t o a s m a l l d y n a m i c s p e a k e r . the operating voltage is from 8v to 16.5v. the APA2615 is capable of driving 10w at 12v or 18w at 16v into 8 w speaker and provides thermal and over-current protections. it also can detect the dc that prevents the speaker voice coil from being destroyed. APA2615 left channel input right channel input left channel speaker right channel speaker linp loutp linn rinn routn rinp loutn routp efficiency vs. output power (8 w ) e f f i c i e n c y ( % ) v dd =12v r l =8 w +33 m h f in =1khz aux-0025 aes-17(20khz) output power (w) 0 1 2 3 4 5 6 7 8 9 10 0 10 20 30 40 50 60 70 80 90 100
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 4 - s e p . , 2 0 1 1 w w w . a n p e c . c o m . t w 2 a p a 2 6 1 5 o r d e r i n g a n d m a r k i n g i n f o r m a t i o n a b s o l u t e m a x i m u m r a t i n g s ( n o t e 1 ) 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 ) . p i n c o n f i g u r a t i o n linn 4 pmax 9 agnd 8 vref 5 rinn 6 3v3reg 2 linp 3 rinp 7 3 0 l o u t p r p g n d 1 3 r o u t p 1 2 r p v d d 1 0 r p v d d 1 6 r o u t n 1 5 r o u t p 1 1 r o u t n 1 4 avdd 1 2 9 l p g n d 3 1 l o u t p 2 8 l o u t n 3 2 l p v d d 2 7 l o u t n 2 6 l p v d d 22 drc0 17 sd 24 gain0 21 oscin 23 drc1 25 gain1 20 osco 19 mute 18 pflag APA2615 (top view) symbol parameter rating unit v dd supply voltage (rpvdd to rpgnd, lpvdd to lpgnd, avdd to agnd) - 0.3 to 20 v sd i nput voltage (sd to agnd) - 0.3 to 20 v in input voltage (linn, linp, rinn and rinp to agnd) - 0.3 to 4 v control input voltage (mute, pmax, drc0, drc1, gain0 and gain1 to agnd) - 0.3 to 4 v pgnd_agnd input voltage (lpgnd, rpgnd to agnd) - 0.3 to +0.3 v APA2615 package code qa : qfn5.2x6.2-32 operating ambient temperature range i : -40 to 85 o c handling code tr : tape & reel assembly material g : halogen and lead free device assembly material handling code temperature range package code APA2615 qa : APA2615 xxxxx xxxxx - date code
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 4 - s e p . , 2 0 1 1 w w w . a n p e c . c o m . t w 3 a p a 2 6 1 5 symbol parameter rating unit t j maximum junction temperature 150 o c t stg storage temperature range - 65 to +150 o c t s dr soldering temperature range , 10 seconds 260 o c p d power dissipation internally limited w range symbol parameter min. max. unit v dd supply voltage 8.0 16.5 sd 2.5 16.5 v ih high l evel t hreshold v oltage mute, pmax, drc0, drc1, gain0, gain1 2.5 3.6 sd 0 1 v il low l evel t hreshold v oltage mute, pmax, drc0, drc1, gain0, gain1 0 1 v ic common mode input voltage 0 3 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 APA2615 symbol parameter test conditions min. typ. max. unit v 3v3reg i o =2ma 2.85 3.3 3.75 v vref - v 3v3reg /2 - v det the dc detection active voltage at output dc detection (>0.5s) - 2 2.5 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 ( n o t e 4 ) e l e c t r i c a l c h a r a c t e r i s t i c s note 4: at stereo mode, if the r l =4 w , the v dd should not excess 12v or it may trigger the over-current protection. 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. 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 junction - to - ambient resistance in f ree a ir (note 2) qfn5.2x6.2 - 32 22 o c/w q jc junction - to - case resistance in free a ir (note 3) qfn5.2x6.2 - 32 4 o c/w note 2: q ja is measured with the component mounted on a high effective thermal conductivity test board in free air. the exposed pad of qfn5.2x6.2-32 is soldered directly on the pcb. note 3: the case temperature is measured at the center of the exposed pad on the underside of the qfn5.2x6.2-32 package. v dd =12v, gnd=0v, t a = 25 o c, a v =22db (unless otherwise noted) a b s o l u t e m a x i m u m r a t i n g s ( c o n t . ) ( n o t e 1 )
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 4 - s e p . , 2 0 1 1 w w w . a n p e c . c o m . t w 4 a p a 2 6 1 5 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 . ) v dd =12v, gnd=0v, t a = 25 o c, a v =22db (unless otherwise noted) APA2615 symbol parameter test conditions min. typ. max. unit v flag protection flag output voltage i sourcing =0.4ma - - 0.4 v oscoh oscillator output voltage i sourcing =4ma 2.2 - - v oscol oscillator output voltage i sinking =4ma - - 0.6 v t sd reco very time from shutdown c 5 =0.1 m f - 1 1.5 t mute recovery time from mute - - 0.001 s i dd supply current no load - 18 36 i mute mute current - 2 10 ma i sd shutdown current sd = 0v - 5 100 i i input c urrent sd, mute, drc0, drc1, gain0, gain1 - - 5 m a f osc internal oscillator frequency 400 500 600 f osci external clock at osci pin 400 500 600 khz dc osci duty cycle of external clock 40 - 60 % v dd =8v, i l =0.8a - 530 - v dd =12v, i l =1a - 480 - r dson static drain - source on - state resistance (p - channel and n channel power mosfet) v dd =16v, i l =1.4a - 440 - m w r i input resistor rinn, rinp, linn, linp (gain independent ) 8 10 12 r o output resistor routn, routp, loutn, loutp - 300 - k w stereo, r l =8 w , p o =9w - 89 - h efficiency stereo, r l =4 w , p o =15w - 85 - % drc[1:0] (0,0), gain (0,0) - 22 - drc (0,0), gain (0,1) - 28 - drc (0,0), gain (1,0) - 34 - drc (0,0), gain (1,1) - 16 - drc (0,1), gain (0,0) - 34 - drc (0,1), gain (0,1) - 40 - drc (0,1), gain (1,0) - 46 - drc (0,1) , gain (1,1) - 28 - drc (1,0), gain (0,0) - 34 - drc (1,0), gain (0,1) - 40 - drc (1,0), gain (1,0) - 46 - drc (1,0), gain (1,1) - 28 - drc (1,1), gain (0,0) - 34 - drc (1,1), gain (0,1) - 40 - drc (1,1), gain (1,0) - 46 - a v closed - l oop gain d rc (1,1), gain (1,1) - 28 - 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 . 4 - s e p . , 2 0 1 1 w w w . a n p e c . c o m . t w 5 a p a 2 6 1 5 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 . ) v dd =12v, gnd=0v, t a = 25 o c, a v =22db (unless otherwise noted) APA2615 symbol parameter test conditions min. typ. max. unit v dd = 16 v,t a =25 o c thd +n =1% f in =1 k hz r l = 8 w - 14 - p o output power thd +n =1 0 % f in =1 k hz r l = 8 w - 18 - w thd+n total harmonic distortion pl u s noise f in =1 k hz r l = 8 w p o = 10 w - 0.05 0.1 % crosstalk channel separation p o =1w,r l =8 w , f in =1khz - - 70 - 60 f in = 100 hz - - 65 - 55 psrr power supply rejection ratio r l = 8 w f in = 1k hz - - 65 - 55 cmrr common mode rejection ration f in =1khz, r l =8 w , v in =0.1v pp , a v =22db - - 65 - 55 att mute mute attenua tion f in =1 k hz , r l = 8 w, v in = 1vpp - - 115 - 100 att shutdown shutdown attenuation f in =1 k hz , r l = 8 w, v in = 1vpp - - 115 - 100 db v os offset voltage no load, a v =22db - - 20 mv v n noise output voltage w ith a - weighting filter (a v =22db) - 250 500 m vrms v dd = 12 v,t a =25 o c r l = 4 w - 14 - thd +n =1% f in =1 k hz r l = 8 w - 8 - r l = 4 w - 17 - p o output power thd +n =1 0 % f in =1 k hz r l = 8 w - 10 - w r l = 4 w p o = 10 w - 0.07 0.1 thd+n total harmonic distortion pl u s noise f in =1 k hz r l = 8 w p o = 6 w - 0.07 0.1 % crosstalk channel s eparation p o =0.5w, r l =8 w , f in =1khz - - 70 - 60 f in = 100 hz - - 65 - 55 psrr power supply rejection ratio r l = 8 w , f in = 1k hz - - 65 - 55 cmrr common mode rejection ration f in =1khz, r l =8 w , v in =0.1v pp , a v =22db - - 65 - 55 att mute mute attenuation f in =1 k hz , r l = 8 w, v in = 1vpp - - 115 - 100 att shutdown shutdown attenuation f in =1 k hz , r l = 8 w, v in = 1vpp - - 115 - 100 db v os offset voltage no load, a v =22db - - 20 mv v n noise output voltage w ith a - weighting filter (a v =22db) - 230 500 m vrms v dd = 8 v,t a =25 o c r l = 4 w - 6 - thd +n =1% f in =1 k hz r l = 8 w - 3.5 - r l = 4 w - 7.5 - p o output po wer thd +n =1 0 % f in =1 k hz r l = 8 w - 4.5 - w s t e r e o m o d e
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 4 - s e p . , 2 0 1 1 w w w . a n p e c . c o m . t w 6 a p a 2 6 1 5 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 . ) v dd =12v, gnd=0v, t a = 25 o c (unless otherwise noted) APA2615 symbol parameter test conditions min. typ. max. unit v dd = 8 v,t a =25 o c (cont.) r l = 4 w p o = 4.5 w - 0.1 0.2 thd+n total harmonic distortion pl u s noise f in =1 k hz r l = 8 w p o = 2.5 w - 0.1 0.2 % crosstalk channel separation p o =0.5w, r l =8 w , f in =1 khz - - 60 - 60 f in = 100 hz - - 65 - 55 psrr power supply rejection ratio r l = 8 w f in = 1k hz - - 65 - 55 cmrr common mode rejection ration f in =1khz, r l =8 w , v in =0.1v pp , a v =22db - - 70 - 55 att mute mute attenuation f in =1 k hz , r l = 8 w , v in = 1vpp - - 115 - 100 att shutdown shutdown attenuation f in =1 k hz , r l = 8 w , v in = 1vpp - - 115 - 100 db v os offset voltage no load, a v =22db - - 20 mv v n noise output voltage w ith a - weighting filter (a v =22db) - 200 400 m vrms s t e r e o m o d e m o n o m o d e APA2615 symbol parameter test conditions min. typ. max. unit v dd = 12 v,t a =25 o c r l = 4 w - 16 - thd +n =1% f in =1 k hz r l = 8 w - 8.5 - r l = 4 w - 20 - p o output power thd +n =1 0 % f in =1 k hz r l = 8 w - 11 - w r l = 4 w p o = 12 w - 0.08 0.2 thd+n total harmonic distortion pl u s noise f in =1 k hz r l = 8 w p o = 6 w - 0.1 0.2 % f in = 100 hz - - 65 - 55 psrr power supply rejection ratio r l = 8 w , f in = 1k hz - - 65 - 55 cmrr common mode rejection ration f in =1khz, r l =8 w , v in =0.1v pp , a v =22db - - 60 - 55 att mute mute at tenuation f in =1 k hz , r l = 8 w , v in = 1vrms - - 115 - 100 att shutdown shutdown attenuation f in =1 k hz , r l = 8 w , v in = 1vrms - - 115 - 100 db v os offset voltage no load, a v =22db - - 20 mv v n noise output voltage w ith a - weighting filter (a v =22db) - 200 400 m vrms
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 4 - s e p . , 2 0 1 1 w w w . a n p e c . c o m . t w 7 a p a 2 6 1 5 t y p i c a l o p e r a t i n g c h a r a c t e r i s t i c s efficiency vs . output power ( 4 w ) output power ( w ) e f f i c i e n c y ( % ) 0 10 20 30 40 50 60 70 80 90 0 2 4 6 8 10 12 14 16 18 r l = 4 w + 33 m h f in = 1 khz c i = 1 m f a v = 22 db thd + n ?? 10 % aux - 0025 aes - 17 ( 20 khz ) v dd = 8 v v dd = 12 v 100 20 efficiency vs . output power ( 8 w ) 0 10 20 30 40 50 60 70 80 90 100 0 2 4 6 8 10 12 14 16 18 20 e f f i c i e n c y ( % ) output power ( w ) v dd = 8 v v dd = 12 v v dd = 16 v r l = 8 w + 33 m h f in = 1 khz c i = 1 m f a v = 22 db thd + n ?? 10 % aux - 0025 aes - 17 ( 20 khz ) output power vs . supply voltage o u t p u t p o w e r ( w ) supply voltage ( v ) 6 8 10 12 14 16 18 8 9 10 11 12 thd + n = 1 % thd + n = 10 % r l = 4 w f in = 1 khz c i = 1 m f a v = 22 db aux - 0025 aes - 17 ( 20 khz ) 0 10 20 30 40 50 60 70 80 90 100 0 5 10 15 20 25 30 35 efficiency vs . output power ( 4 w_ mono mode ) output power ( w ) e f f i c i e n c y ( % ) r l = 4 w + 33 m h f in = 1 khz c i = 1 m f a v = 22 db thd + n ?? 10 % aux - 0025 aes - 17 ( 20 khz ) mono mode v dd = 8 v v dd = 12 v v dd = 16 v output power vs . supply voltage o u t p u t p o w e r ( w ) supply voltage ( v ) 0 5 10 15 20 8 10 12 14 16 thd + n = 1 % thd + n = 10 % r l = 8 w f in = 1 khz c i = 1 m f a v = 22 db aux - 0025 aes - 17 ( 20 khz ) output power vs . supply voltage ( mono mode ) 6 8 10 12 14 16 18 8 9 10 11 12 r l = 4 w f in = 1 khz c i = 1 m f a v = 22 db aux - 0025 aes - 17 ( 20 khz ) mono mode thd + n = 1 % thd + n = 10 % o u t p u t p o w e r ( w ) supply voltage ( v ) 20
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 4 - s e p . , 2 0 1 1 w w w . a n p e c . c o m . t w 8 a p a 2 6 1 5 t y p i c a l o p e r a t i n g c h a r a c t e r i s t i c s ( c o n t . ) r frequency (hz) t h d + n ( % ) thd+n vs. frequency v dd =12v r l =4 w c i =1 m f aux-0025 aes-17(20khz) p o =10w a v =22db p o =1w a v =22db p o =1w a v =34db p o =10w a v =34db 20 20k 100 1k 10k 0.006 1 0.01 0.1 20 20k 100 1k 10k frequency (hz) t h d + n ( % ) thd+n vs. frequency v dd =12v r l =8 w c i =1 m f aux-0025 aes-17(20khz) p o =6w a v =22db p o =1w a v =22db p o =1w a v =34db p o =6w a v =34db 0.006 1 0.01 0.1 0.01 10 0.1 1 0 45 5 10 15 20 25 30 35 40 thd+n vs. output power output power (w) t h d + n ( % ) r l =4 w f in =1khz c i =1 m f a v =22db aux-0025 aes-17(20khz) mono mode v dd =8v v dd =16v v dd =12v frequency (hz) t h d + n ( % ) thd+n vs. frequency v dd =12v r l =4 w c i =1 m f aux-0025 aes-17(20khz) mono mode p o =11w a v =22db p o =1w a v =22db p o =1w a v =34db p o =11w a v =34db 0.006 1 0.01 0.1 20 20k 100 1k 10k 0 . 01 10 0 . 1 1 0 18 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 thd + n vs . output power output power ( w ) t h d + n ( % ) r l = 4 w f in = 1 khz c i = 1 m f a v = 22 db aux - 0025 aes - 17 ( 20 khz ) single channel v dd = 8 v v dd = 12 v thd + n vs . output power output power ( w ) t h d + n ( % ) r l = 8 w f in = 1 khz c i = 1 m f a v = 22 db aux - 0025 aes - 17 ( 20 khz ) single channel v dd = 8 v v dd = 16 v v dd = 12 v 0 22 2 4 6 8 10 12 14 16 18 20 0 . 01 10 0 . 02 0 . 05 0 . 1 0 . 2 0 . 5 1 2 5
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 4 - s e p . , 2 0 1 1 w w w . a n p e c . c o m . t w 9 a p a 2 6 1 5 t y p i c a l o p e r a t i n g c h a r a c t e r i s t i c s ( c o n t . ) frequency response p h a s e ( d e g r e e ) frequency (hz) v dd =12v r l =4 w p o =1.1w c i =1 m f aux-0025 mono mode gain, a v =22db gain, a v =34 db phase , a v =22 db phase, a v =34 db g a i n ( d b ) 20 100k 100 1k 10k +12 +37 +14.5 +17 +19.5 +22 +24.5 +27 +29.5 +32 +34.5 -180 +80 -160 -140 -120 -100 -80 -60 -40 -20 +0 +20 +40 +60 20 100k 100 1k 10k frequency response p h a s e ( d e g r e e ) frequency (hz) v dd =12v r l =8 w p o =0.6w c i =1 m f aux-0025 gain, a v =22db gain, a v =34 db phase , a v =22 db phase, a v =34 db g a i n ( d b ) +12 +37 +14.5 +17 +19.5 +22 +24.5 +27 +29.5 +32 +34.5 -80 +80 -60 -40 -20 +0 +20 +40 +60 output noise voltage vs. frequency a v =16db frequency (hz) o u t p u t n o i s e v o l t a g e ( m v ) v dd =12v r l =4 w c i =1 m f aux-0025 aes-17(20khz) a-weighting mono mode a v =28db a v =22db a v =34db 20 20k 100 1k 10k 10 m 1m 100 m output noise voltage vs. frequency a v =16db frequency (hz) o u t p u t n o i s e v o l t a g e ( m v ) v dd =12v r l =8 w c i =1 m f aux-0025 aes-17(20khz) a-weighting a v =28db a v =22db a v =34db 10 m 1m 100 m 20 20k 100 1k 10k crosstalk vs. frequency c r o s s t a l k ( d b ) right channel to left channel left channel to right channel frequency (hz) v dd =12v r l =8 w p o =0.6w c i =1 m f av=22db aux-0025 aes-17(20khz) 20 20k 100 1k 10k -120 +0 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 v dd =12v r l =4 w p o =1w c i =1 m f av=22db aux-0025 aes-17(20khz) crosstalk vs. frequency c r o s s t a l k ( d b ) right channel to left channel left channel to right channel frequency (hz) -120 +0 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 20 20k 100 1k 10k
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 4 - s e p . , 2 0 1 1 w w w . a n p e c . c o m . t w 1 0 a p a 2 6 1 5 t y p i c a l o p e r a t i n g c h a r a c t e r i s t i c s ( c o n t . ) inter-modulation performance f f t ( d b r ) frequency (hz) v dd =12v r l =8 w p o =1w c i =1 m f a v =22db f in =19khz&20khz, 1:1 bw=22~22khz aux-0025 60 20k 100 200 500 1k 2k 5k 10k -140 +0 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 60 20k 100 1k 10k f f t ( d b r ) frequency (hz) v dd =12v r l =4 w p o =1w c i =1 m f a v =22db f in =19khz&20khz, 1:1 bw=22~22khz aux-0025 mono mode -140 +0 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 inter-modulation performance 20 20k 100 1k 10k cmrr vs. frequency frequency (hz) c m r r ( d b ) v dd =12v r l =8 w c i =1 m f v o =1 vrms aux-0025 aes-17(20khz) a v =22db a v =34db -100 +0 -90 -80 -70 -60 -50 -40 -30 -20 -10 psrr vs. frequency p s r r ( d b ) frequency (hz) v dd =12v r l =8 w c i =1 m f a v =22db v rr =0.2v rms input ac short to gnd aux-0025 aes-17(20khz) 20 20k 100 1k 10k -100 +0 -90 -80 -70 -60 -50 -40 -30 -20 -10 20 20k 100 1k 10k cmrr vs. frequency frequency (hz) c m r r ( d b ) v dd =12v r l =4 w c i =1 m f v o =1 vrms aux-0025 aes-17(20khz) mono mode a v =22db a v =34db -100 +0 -90 -80 -70 -60 -50 -40 -30 -20 -10 20 20k 100 1k 10k psrr vs. frequency p s r r ( d b ) frequency (hz) v dd =12v r l =4 w c i =1 m f a v =22db v rr =0.2v rms input ac short to gnd aux-0025 aes-17(20khz) mono mode -100 +0 -90 -80 -70 -60 -50 -40 -30 -20 -10
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 4 - s e p . , 2 0 1 1 w w w . a n p e c . c o m . t w 1 1 a p a 2 6 1 5 t y p i c a l o p e r a t i n g c h a r a c t e r i s t i c s ( c o n t . ) supply current vs. supply voltage s u p p l y c u r r e n t ( m a ) supply voltage (v) no load 0 2 4 6 8 10 12 14 16 18 0 5 10 15 20 25 20 20k 100 1k 10k shutdown attenuation vs. frequency s h u t d o w n a t t e n u a t i o n ( d b ) frequency (hz) v dd =12v r l =8 w c i =1 m f a v =22db v o =2v rms aux-0025 aes-17(20khz) right channel left channel -130 +0 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 20 20k 100 1k 10k mute attenuation vs. frequency m u t e a t t e n u a t i o n ( d b ) frequency (hz) v dd =12v r l =8 w c i =1 m f a v =22db v o =2v rms aux-0025 aes-17(20khz) right channel left channel -130 +0 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 supply current vs. output power each channel output power (w) s u p p l y c u r r e n t ( a ) v dd =8v v dd =12v r l =4 w +33 m h f in =1khz c i =1 m f a v =22db thd+n ?? 1% aux-0025 aes-17(20khz) 0 2 4 6 8 10 12 14 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 supply current vs. output power each channel output power (w) s u p p l y c u r r e n t ( a ) v dd =8v v dd =16v v dd =12v r l =8 w +33 m h f in =1khz c i =1 m f a v =22db thd+n ?? 1% aux-0025 aes-17(20khz) 0 2 4 6 8 10 12 14 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 0 0 . 2 0 . 4 0 . 6 0 . 8 1 . 0 1 . 2 1 . 4 1 . 6 1 . 8 2 . 0 0 5 10 15 20 25 30 supply current vs . output power l output power ( w ) s u p p l y c u r r e n t ( a ) v dd = 8 v v dd = 5 v v dd = 12 v r l = 4 w + 33 m h f in = 1 khz c i = 1 m f a v = 22 db thd + n ?? 1 % mono mode 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 . 4 - s e p . , 2 0 1 1 w w w . a n p e c . c o m . t w 1 2 a p a 2 6 1 5 t y p i c a l o p e r a t i n g c h a r a c t e r i s t i c s ( c o n t . ) input voltage vs. output voltage o u t p u t v o l t a g e ( v ) input voltage (v) v dd =12v v pmax =0.5v c i =1 m f a v =46db aux-0025 aes-17(20khz) non-clip mode drc 2 mode drc 1 mode 200m 20 500m 1 2 5 10 1m 1 10m 100m mute current vs. supply voltage no load supply voltage (v) s u p p l y c u r r e n t ( m a ) 0 0.3 0.6 0.9 1.2 1.5 0 2 4 6 8 10 12 14 16 18 input voltage vs. output voltage o u t p u t v o l t a g e ( v ) input voltage (v) v dd =12v v pmax =1v c i =1 m f a v =46db aux-0025 aes-17(20khz) non-clip mode drc 1 mode drc 2 mode 1m 1 10m 100m 200m 20 500m 1 2 5 10 shutdown current vs. supply voltage s u p p l y c u r r e n t ( m a ) supply voltage (v) no load 0 1 2 3 4 5 0 2 4 6 8 10 12 14 16 18 input voltage (v) o u t p u t v o l t a g e ( v ) v dd =12v v pmax =1.3v c i =1 m f a v =46db aux-0025 aes-17(20khz) drc 2 mode drc 1 mode non-clip mode input voltage vs. output voltage 200m 20 500m 1 2 5 10 1m 1 10m 100m
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 4 - s e p . , 2 0 1 1 w w w . a n p e c . c o m . t w 1 3 a p a 2 6 1 5 t y p i c a l o p e r a t i n g c h a r a c t e r i s t i c s ( c o n t . ) p o w e r o n v dd outp & outn output 1 2&3 m1 c h 1 : v d d , 1 0 v / d i v , d c c h 2 : o u t p , 5 v / d i v , d c c h 3 : o u t n , 5 v / d i v , d c c h m 1 : o u t p u t , 5 v / d i v , d c t i m e : 2 0 0 m s / d i v c h 1 : v d d , 1 0 v / d i v , d c c h 2 : o u t p , 5 v / d i v , d c c h 3 : o u t n , 5 v / d i v , d c c h m 1 : o u t p u t , 5 v / d i v , d c t i m e : 1 0 0 m s / d i v p o w e r o f f 1 2&3 m1 v dd outp & outn output s h u t d o w n sd outp & outn output 1 2&3 m1 c h 1 : s d , 2 v / d i v , d c c h 2 : o u t p , 5 v / d i v , d c c h 3 : o u t n , 5 v / d i v , d c c h m 1 : o u t p u t , 5 v / d i v , d c t i m e : 2 0 0 m s / d i v s h u t d o w n r e l e a s e sd outp & outn output 1 2&3 m1 c h 1 : s d , 2 v / d i v , d c c h 2 : o u t p , 5 v / d i v , d c c h 3 : o u t n , 5 v / d i v , d c c h m 1 : o u t p u t , 5 v / d i v , d c t i m e : 2 0 0 m s / d i 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 . 4 - s e p . , 2 0 1 1 w w w . a n p e c . c o m . t w 1 4 a p a 2 6 1 5 p i n d e s c r i p t i o n pin no. name i/o/p function 1 avdd p power supply for control block. 2 3v3reg o regulator output, 3.3v. only for internal used. 3 linp i t he positive input of left channel amplifier . 4 linn i t he negative input of left channel amplifier . 5 vref p the reference voltage output. 6 rinn i t he negative input of right channel amplifier . 7 rinp i t he posi tive input of right channel amplifier . 8 agnd p ground connection for control block. 9 pmax i input for set the power limit function. enable: p o(max ) =(1.65 - v pmax )x11.23, disable: gnd. 10,16 rpvdd p the power supply for right channel class - d amplifier. 11,12 routp o the positive output of right channel class - d amplifier. 13 rpgnd p ground connection for right channel class - d amplifier. 14,15 routn o the negative output of right channel class - d amplifier. 17 sd i shutdown mode control input, place entire ic in shutdown mode when held low. 18 pflag o protection flag output (open drain). 19 mute i mute mode control input; pull low to mute the clas s - d amplifier ? s output. 20 osco o the internal oscillator ? s output, for synchronization other APA2615s. 21 oscin i external clock input. 22 drc0 i non - clip and drc (dynamic range compress) control; lsb bit 0. 23 drc1 i non - clip and drc (dynamic range c ompress) control; msb bit 1. 24 gain0 i control pin for internal gain setting, lsb, bit0. 25 gain1 i control pin for internal gain setting, msb, bit1. 26,32 lpvdd p the power supply for left channel class - d amplifier. 27,28 loutn o the negative output of left channel class - d amplifier. 29 lpgnd p ground connection for left channel class - d amplifier. 30,31 loutp o the positive output of left channel class - d 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 . 4 - s e p . , 2 0 1 1 w w w . a n p e c . c o m . t w 1 5 a p a 2 6 1 5 b l o c k d i a g r a m 3v3reg protection function gate drive gate drive rpvdd routn rpgnd routp rpvdd avdd rinn rinp oscillator gain1 gain0 drc0 linp lpvdd linn oscin osco 3.3v regulator drc/non- clip control shutdown control gate drive gate drive power limit drc1 lpvdd loutn lpgnd loutp gain control power limit biases & reference pmax vref agnd v int v int v int v int v int v int v int v int v int mute control pflag pmax pmax mute sd mute
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 4 - s e p . , 2 0 1 1 w w w . a n p e c . c o m . t w 1 6 a p a 2 6 1 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 s s t e r e o o p e r a t i o n linn 4 pmax 9 agnd 8 vref 5 rinn 6 3v3reg 2 linp 3 rinp 7 3 0 l o u t p r p g n d 1 3 r o u t p 1 2 r p v d d 1 0 r p v d d 1 6 r o u t n 1 5 r o u t p 1 1 r o u t n 1 4 avdd 1 2 9 l p g n d 3 1 l o u t p 2 8 l o u t n 3 2 l p v d d 2 7 l o u t n 2 6 l p v d d 22 drc0 17 sd 24 gain0 21 oscin 23 drc1 25 gain1 20 osco 19 mute 18 pflag gain setting no clip and drc control external clock mute control shutdown control 1 m f 1 m f 0.1 m f 1 m f 1 m f left channel input signal left channel input signal c i1 c i2 c b c i3 c i4 220 m f 1 m f 0.1 m f c s2 APA2615 c 1 r 1 r 2 c s5 1 m f 1 m f c s6 c s4 c s3 1 m f 1 m f clock output protection flag v dd v dd c s1 v dd v dd v dd v dd pflag 3v3reg 120k
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 4 - s e p . , 2 0 1 1 w w w . a n p e c . c o m . t w 1 7 a p a 2 6 1 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 s ( c o n t . ) m o n a u r a l o p e r a t i o n linn 4 pmax 9 agnd 8 vref 5 rinn 6 3v3reg 2 linp 3 rinp 7 3 0 l o u t p r p g n d 1 3 r o u t p 1 2 r p v d d 1 0 r p v d d 1 6 r o u t n 1 5 r o u t p 1 1 r o u t n 1 4 avdd 1 2 9 l p g n d 3 1 l o u t p 2 8 l o u t n 3 2 l p v d d 2 7 l o u t n 2 6 l p v d d 22 drc0 17 sd 24 gain0 21 oscin 23 drc1 25 gain1 20 osco 19 mute 18 pflag gain setting no clip and drc control external clock mute control shutdown control 1 m f 1 m f 0.1 m f input signal c i1 c i2 c b 220 m f 1 m f 0.1 m f c s2 APA2615 c 1 r 1 r 2 c s5 1 m f 1 m f c s6 c s 4 c s3 1 m f 1 m f clock output v dd v dd c s1 v dd v dd v dd v dd protection flag pflag 3v3reg 120k
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 4 - s e p . , 2 0 1 1 w w w . a n p e c . c o m . t w 1 8 a p a 2 6 1 5 f u n c t i o n d e s c r i p t i o n class d operation v outp v out (v outp -v outn ) i out i out output = 0v output > 0v i out output < 0v v outn v outp v outn v outn v outp v out (v outp -v outn ) v out (v outp -v outn ) f i g u r e 1 . t h e a p a 2 6 1 5 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 1 5 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 p 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 p i s g r e a t e r t h a n 5 0 % a n d v o u t n 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 p i s l e s s t h a n 5 0 % a n d v o u t n 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 s 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 d 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 . 3.3v regulator operation the 3v3reg regulates the voltage at 3.3v and only for internal circuit used. and connect a capacitor from 1 m f to 4.7 m f (x5r or above) for stable. (0.8 m f or more should be secured including its variation and temperature change.) reference voltage the voltage output of vref pin is equal to v 3v3reg /2 and needs to connect a capacitor of 0.1 m f for voltage stabilization. gain setting operation table 1. the gain setting gain1 gain0 drc1 drc0 gain 0 0 0 0 22db 0 1 0 0 28db 1 0 0 0 34db 1 1 0 0 16db 0 0 x 1 34db 0 1 x 1 40db 1 0 x 1 46db 1 1 x 1 28db 0 0 1 x 34db 0 1 1 x 40db 1 0 1 x 46db 1 1 1 x 28db t h e a p a 2 6 1 5 ? s g a i n c a n b e s e t b y g a i n 0 , g a i n 1 . t h e d e t a i l g a i n s e t t i n g v a l u e i s l i s t a t t a b l e 1 . mute operation at mute state, the class-d output will be forced at 50% duty at outp and outn, so differential is zero, and out- put signals have be disabled. the recovery time of mute state to normal operation is about 1ms (max.). 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 1 5 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 1 5 . 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 t h e 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 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 o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 4 - s e p . , 2 0 1 1 w w w . a n p e c . c o m . t w 1 9 a p a 2 6 1 5 c u r r e n t s t a t e , i d d f o r a p a 2 6 1 5 i s i n t h e 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 1 5 ? 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 . f u n c t i o n d e s c r i p t i o n ( c o n t . ) shutdown operation (cont.) oscillator operation osci pin mode osco 0 fixed internal fixed clock mode internal fixed clock output 1 fixed internal spread clock mode (5) internal spread clock output clock in external clock mode external clock buffer output w h e n t h e o s c i p i n p u l l s l o w , t h e a p a 2 6 1 5 w o r k s a t i n t e r - n a l f i x e d c l o c k m o d e , a n d o s c o p i n i s o u t p u t t h a t f i x e d c l o c k ( 5 0 0 k h z ) ; w h e n t h e o s c i p i n p u l l s h i g h , t h e a p a 2 6 1 5 w o r k s a t i n t e r n a l s p r e a d c l o c k m o d e , a n d t h e c l o c k r a n g e i s f r o m 4 0 0 k h z t o 6 0 0 k h z ; t h e o s c o p i n i s t h e b u f f e r f o r o u t p u t t h e s e s p r e a d c l o c k . a p p l y t h e e x t e r n a l c l o c k t o t h e o s c i p i n , t h e a p a 2 6 1 5 w i l l w o r k a t e x t e r n a l c l o c k m o d e , a n d t h e e x t e r n a l c l o c k s h o u l d a t t h e r a n g e f r o m 4 0 0 k h z t o 6 0 0 k h z a n d t h e d u t y c y c l e s h o u l d b e a t r a n g e f r o m 4 0 % t o 6 0 % , a n d t h e o s c o i s t h e e x t e r n a l c l o c k ? s o u t p u t b u f f e r . power limit operation this function limits the maximum output power of APA2615 for prevent exceeding the maximum power of speaker. except drc 2 mode, this function is always enabled. the setting value can be a voltage divider by resistor that connects 3v3reg and gnd. the maximum power limit value (peak voltage) = (1.65- v pmax )x11.23. non-clip operation when the drc [1:0]=01(drc1=low, and drc0=high), the non-clip mode is active. the gain is increasing by 12db compared to the normal mode. the output peak voltage becomes the power limit value. if the peak volt- age excesses the power limit value, it will be attenuated to the power limit value, and the maximum attenuation is -12db. the attack time is zero second and needs 7.7 drc operation drc1 drc0 mode 0 0 normal mode (drc mode off , non - clip mode off) 0 1 non - clip mode 1 0 drc 1 mode 1 1 drc 2 mode d r c 1 m o d e : d r c [ 1 : 0 ] = 1 0 ( d r c 1 = h i g h , a n d d r c 0 = l o w ) , t h e d r c 1 m o d e i s a c t i v e . t h e g a i n i s i n - c r e a s i n g b y 1 2 d b c o m p a r e d t o t h e n o r m a l m o d e . t h e p o w e r l i m i t v a l u e i s t h e p o i n t t h a t a c t i v e t h e d y n a m i c r a n g e c o m p r e s s i o n f u n c t i o n , a n d t h e m a x i m u m a t t e n u a t i o n i s - 1 2 d b . t h e a t t a c k t i m e i s z e r o s e c o n d a n d n e e d s 3 . 9 s e c o n d s t o r e l e a s e t h e n o n - c l i p f u n c t i o n f r o m - 1 2 d b t o 0 d b . d r c 2 m o d e : d r c [ 1 : 0 ] = 1 1 ( d r c 1 = h i g h , a n d d r c 0 = h i g h ) , s i m i l a r t o t h e d r c 1 m o d e , b u t n o t p e r f o r m t h e p o w e r l i m i t f u n c t i o n . t h e d r c o p e r a t i o n s h o u l d b e s w i t c h e d u n d e r p o w e r - o f f o r s h u t d o w n m o d e t o p r e v e n t t h e p o p n o i s e b e t w e e n t h e m o d e s w i t c h i n g . stereo/mono switching operation w h e n c o n n e c t s t h e r i n n a n d r i n p t o 3 v 3 r e g b e f o r e p o w e r - o n , t h e a p a 2 6 1 5 w i l l e n t e r t h e m o n a u r a l o p e r a - t i o n a l w h e n p o w e r - o n . i n t h i s o p e r a t i o n , t h e o u t p u t o f r o u t p s h o u l d c o n n e c t t o l o u t p f o r p o s i t i v e o u t p u t , a n d t h e r o u n s h o u l d c o n n e c t t o l o u t n f o r n e g a t i v e o u t p u t , t h e i n p u t s i g n a l w i l l v i a l i n n a n d l i n p t o i n p u t t h e a p a 2 6 1 5 . t h i s m o d e c a n i n c r e a s e m o r e o u t p u t p o w e r c o m p a r e d t o t h e s t e r e o m o d e s i n g l e c h a n n e l ? s o u t p u t p o w e r . seconds to release the non-clip function from -12db to 0db. the non-clip operation should be switched under power- off or shut down mode to prevent the pop noise between the mode switching. multi-APA2615 synchronization operation t h e e x t e r n a l c l o c k s y n c h r o n i z a t i o n f u n c t i o n a n d t h e c l o c k o u t p u t f u n c t i o n a r e p r e p a r e d a n d t h e u s e o f m a s t e r / s l a v e c o n f i g u r a t i o n r e a l i z e s c a r r i e r c l o c k s y n c h r o n i z 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 . 4 - s e p . , 2 0 1 1 w w w . a n p e c . c o m . t w 2 0 a p a 2 6 1 5 f u n c t i o n d e s c r i p t i o n ( c o n t . ) multi-APA2615 synchronization operation (cont.) protection flag operation protection function pflag output latch class - d output state cancellation dc detection low yes weak low shutdown or power - off uvlo high - z - weak low - over current protection low yes weak low shutdown or power - off thermal protection (power limit) - no p ower limit ( - 6db) shutdown or power - off or lower temperature thermal protection (class - d off) low no weak low shutdown or power - off or low temperature dc detection operation w h e n a d c s i g n a l a p p l i e s t o t h e i n p u t o f a p a 2 6 1 5 a n d t h e t i m e e x c e s s e s 0 . 5 s , a p a 2 6 1 5 w i l l t u r n - o f f t h e c l a s s - d o u t p u t , a n d t h e p f l a g p i n w i l l p u l l l o w . t h i s f u n c t i o n p r o - t e c t s t h e s p e a k e r t o b e d e s t r o y e d b y l a r g e d c o f f s e t . a t m u t e m o d e , t h e d c d e t e c t i o n f u n c t i o n w i l l b e d i s a b l e d . t h e d c d e t e c t i o n s t a t e w i l l l a t c h a n d n e e d p o w e r - o f f o r s h u t d o w n t o r e l e a s e t h e p r o t e c t i o n . c o n n e c t p f l a g t o s d p i n , t h e d c d e t e c t i o n w i l l b e a u t o r e c o v e r y . over-current protection t h e a p a 2 6 1 5 m o n i t o r s t h e o u t p u t c u r r e n t . w h e n t h e c u r - r e n t e x c e e d s t h e c u r r e n t - l i m i t t h r e s h o l d , t h e a p a 2 6 1 5 t u r n - o f f t h e o u t p u t t o p r e v e n t t h e i c f r o m b e i n g d a m a g e d 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 , a n d t h e a p a 2 6 1 5 w i l l l a t c h a t t h i s s t a t e u n t i l s h u t d o w n o r p o w e r - o f f t o r e - l e a s e t h e o v e r - c u r r e n t p r o t e c t i o n . p f l a g w i l l p u l l - h i g h w h e n t h e p r o t e c t i o n o c c u r s . c o n n e c t p f l a g t o s d p i n , t h e o v e r - c u r r e n t p r o t e c t i o n w i l l b e a u t o r e c o v e r y . thermal protection the thermal protection has two modes to prevent the APA2615 from being destroyed by over temperature. when the junction temperature exceeds 155c and un- der the 165c, the APA2615 will limit the output power by 6db to lower the temperature. this calls thermal limit mode. when the junction temperature falls down to 130c, the thermal limit state will be cancelled. when junction temperature exceeds 165c, the class-d output would turn-off, and the pflag pin will pull-low. this calls thermal mute mode. all the state will be can- celled when junction lower than 130c. some conditions, like v dd =5v, r l =4 w , can?t meet spec p o =14w because ic into thermal shutdown. output power curve use dot line to indicate thermal limit. w h e n u s i n g i t w i t h m u l t i c h i p s s y n c h r o n i z e d , o n e i s u s e d a s a m a s t e r c h i p a n d t h e o t h e r i s u s e d a s a s l a v e c h i p . a t t h i s t i m e , c o n n e c t o s c o p i n o f a m a s t e r c h i p t o o s c i p i n o f a s l a v e c h i p . w h e n u s i n g 3 p i e c e s o f a p a 2 6 1 5 ( m a s t e r / s l a v e 1 / s l a v e 2 ) , c o n n e c t o s c o t e r m i n a l o f a s l a v e 1 c h i p t o o s c i p i n o f a s l a v e 2 c h i p .
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 4 - s e p . , 2 0 1 1 w w w . a n p e c . c o m . t w 2 1 a p a 2 6 1 5 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 o u t t h e a i r g a p a n d d e f a c e t h e v o i c e c o i l . h o w e v e r , i t 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 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 resistance, r i t h e a p a 2 6 1 5 ? s i n p u t r e s i s t o r i s f i x e d a n d t h e v a l u e i s 1 8 . 8 k w . 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 5 % ) w h i c h i s b e i n g c a u s e d b y m a n u f a c t u r e . 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 ) 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 1 8 . 8 k w a n d t h e s p e c i f i c a t i o n c a l l s f o r a f l a t b a s s r e s p o n s e d o w n t o 4 0 h z . 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 ) 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 . 2 2 m f , s o a v a l u e i n t h e r a n g e o f 0 . 2 2 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 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 e r s ? i n p u t s i s h e l d a t v 3 v 3 r e g / 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 . output low-pass filter i f t h e t r a c e s f o r m a p a 2 6 1 5 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 n e 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 . 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 f i g u r e 3 a n d f i g u r e 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 . figure 3. lc output filter for 8 w speaker v outp v outn 4 w 1n f 1n f ferrite bead ferrite bead i i ) c(highpass c r 2 1 f p = c i i f r 2 1 c p = outp outn 8 w 1 m f 33 m h 33 m h 1 m f inductor :toko 11rhbp a7503ay-330m
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 4 - s e p . , 2 0 1 1 w w w . a n p e c . c o m . t w 2 2 a p a 2 6 1 5 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 . ) output low-pass filter (cont.) 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 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 ) . ( 3 ) power-supply decoupling capacitor, c s t h e a p a 2 6 1 5 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 . 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 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 a v d d p i n a n d 1 m f p l a c e d t o t h e l p v d d a n d r p v d d l e a d s f o r 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 , 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 2 2 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 . layout recommendation i n h i g h p o w e r c l a s s - d p o w e r a m p l i f i e r , a c o r r e c t l a y o u t i s i m p o r t a n t t o e n s u r e p r o p e r o p e r a t i o n o f t h e a m p l i f i e r a n d a v o i d t h e s w i t c h n o i s e r a d i a t i o n . i n g e n e r a l , i n t e r c o n n e c t - i n g i m p e d a n c e s h o u l d b e m i n i m i z e d b y u s i n g s h o r t a n d w i d e p r i n t e d c i r c u i t t r a c e s . e s p e c i a l f o r t h e h i g h s l e w r a t e o u t p u t p w m s i g n a l t o s p e a k e r , t h e s e l o o p s s h o u l d b e a s s m a l l a s p o s s i b l e . 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 1 5 . 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 1 5 ? 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 1 5 ? 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 1 5 ? 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 , a n d t h i s l o o p l i k e t h e f i g u r e 5 , s h o u l d b e a s s m a l l a s p o s s i b l e , ( t h i s l o o p i s h i g h s l e w r a t e a n d h i g h c u r r e n t p a t h ) . figure 5. APA2615 output topology 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 5 . 2 x 6 . 2 - 3 2 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 . l i k e t h e f i g u r e 6 i l l u s t r a t e . lc 2 1 f c(lowpass) p = 3 0 l o u t p 2 9 l p g n d 3 1 l o u t p 2 8 l o u t n 3 2 l p v d d 2 7 l o u t n 2 6 l p v d d APA2615 1 m f 1 m f v dd v dd outp outn 4 w 2.2 m f 22 m h 22 m h 2.2 m f inductor :toko 11rhbp a7503ay-220m
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 4 - s e p . , 2 0 1 1 w w w . a n p e c . c o m . t w 2 3 a p a 2 6 1 5 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 (cont.) 0.5mm 0.25mm 3.3mm ground plane for thermalpad thermal via diameter 0.3mm x 12 4 . 3 m m solder mask to prevent short circuit 1.15mm 4.0mm 5 . 0 m m f i g u r e 6 . q f n 5 . 2 x 6 . 2 - 3 2 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
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 4 - s e p . , 2 0 1 1 w w w . a n p e c . c o m . t w 2 4 a p a 2 6 1 5 p a c k a g e i n f o r m a t i o n q f n 5 . 2 x 6 . 2 - 3 2 d e pin 1 a a1 a3 b pin 1 corner d2 e 2 k l e s y m b o l min. max. 1.00 0.00 0.18 0.30 4.20 4.60 0.05 3.20 a a1 b d d2 e e2 e l millimeters a3 0.20 ref qfn5.2x6.2-32 0.50 0.70 3.60 0.008 ref min. max. inches 0.039 0.000 0.007 0.012 0.165 0.181 0.126 0.020 0.028 0.80 0.142 0.031 0.002 0.50 bsc 0.020 bsc 6.10 6.30 0.240 0.248 5.10 5.30 0.201 0.209 0.20 k 0.008
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 4 - s e p . , 2 0 1 1 w w w . a n p e c . c o m . t w 2 5 a p a 2 6 1 5 application a h t1 c d d w e1 f 330.0 ? 2.00 50 min. 12.4+2.00 - 0.00 13.0+0.50 - 0.20 1.5 min. 20.2 min. 12.0 ? 0.30 1.75 ? 0.10 5.5 ? 0.10 p 0 p1 p 2 d 0 d1 t a 0 b 0 k 0 qfn5.2x6.2 - 32 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 5.60 ? 0.20 6.6 ? 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 package type unit quantity qfn5.2x6.2 - 32 tape & reel 2500 d e v i c e s p e r u n i t 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 . 4 - s e p . , 2 0 1 1 w w w . a n p e c . c o m . t w 2 6 a p a 2 6 1 5 t a p i n g d i r e c t i o n i n f o r m a t i o n c l a s s i f i c a t i o n p r o f i l e q f n 5 . 2 x 6 . 2 - 3 2 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 . 4 - s e p . , 2 0 1 1 w w w . a n p e c . c o m . t w 2 7 a p a 2 6 1 5 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 @ t j =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 . 4 - s e p . , 2 0 1 1 w w w . a n p e c . c o m . t w 2 8 a p a 2 6 1 5 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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