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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 . 6 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 a p a 2 6 0 7 the apa2607 is a stereo, high efficiency, class-d audio amplifier available in a tqfn5x5-32 package. the filter-free class-d architecture eliminates the exter- nal low pass filters and saves the pcb space and bom costs. the apa2607 also has spread clock function that reduces the high frequency radiation and low the emi noise. the zero-crossing-change function changes the gain when both output (v outp and v outn ) crossing together can minimum the pop noise. the power limit function can protect the speaker when output signal excesses the speaker limit rating. the non-clip and drc functions eliminate the distortion at large input signal and can fit the high dynamic input signal to a small dynamic speaker. the operating voltage is from 8v to 16.5v. the apa2607 is capable of driving 6w at 12v into 8 w speaker and pro- vides thermal and over-current protections. the apa2607 also can detect the dc that prevents the speaker voice coil being destroyed. 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 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 = 6 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 - 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 s p a c e s a v i n g p a c k a g e t q f n 5 x 5 - 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 apa2607 left channel input right channel input left channel speaker right channel speaker linp loutp linn rinn routn rinp loutn routp 0 1 2 3 4 5 6 7 8 9 10 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(20 k hz) output power (w) 10 20 30 40 50 60 70 80 90 100 0
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 0 7 p i n c o n f i g u r a t i o n o r d e r i n g a n d m a r k i n g i n f o r m a t i o n 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). apa2607 handling code temperature range package code package code qb : t qfn5x5-32 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 apa2607 xxxxx apa2607 qb: xxxxx - date code linn 4 p m a x 9 agnd 8 vref 5 rinn 6 3v3reg 2 linp 3 rinp 7 avdd 1 22 drc0 17 sd 24 gain0 21 oscin 23 drc1 20 osco 19 mute 18 pflag apa2607 tqfn5x5-32 (top view) r p v d d 1 0 r o u t p 1 1 r o u t p 1 2 r p g n d 1 3 r o u t n 1 4 r o u t n 1 5 r p v d d 1 6 2 5 g a i n 1 3 2 l p v d d 3 1 l o u t p 3 0 l o u t p 2 9 l p g n d 2 8 l o u t n 2 7 l o u t n 2 6 l p v d 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 3 a p a 2 6 0 7 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 (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, p max, 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 t j maximum junction temperature 150 o c t stg storage temperature range - 65 to +150 o c t s dr maximum soldering temperature range , 10 secon ds 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 junction - to - ambient resistance in free air (note 2) tqfn5x5 - 32 28 o c/w q jc junction - to - case resistance in free air (note 3) tqfn5x5 - 32 6 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 tqfn5x5-32 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 tqfn5x5-32 package. 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 ) 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 - 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 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.
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 0 7 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 apa2607 symbol parameter test condition s 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 flag protection flag output voltage i soucing =0. 4ma - - 0.4 v v osco oscillator output voltage i sinking =i soucing =4ma 2.2 - - v pp t sd recovery 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 ii input c urrent sd, mute, drc0, drc1, gain0, gain1 - - 5 m a f osc internal oscill ator frequency 400 500 600 f osci external clock at osci pin 400 500 600 khz dt 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 ) - 10 - r o output resistor routn, routp, loutn, loutp - 300 - k w h efficiency stereo, r l =8 w , p o =6w - 89 - % 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 - a v closed - loop gain drc (1,1), gain (0,1) - 40 - db v dd =12v, gnd=0v, t a =25 o c (unless otherwise noted)
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 0 7 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 . ) apa2607 symbol parameter test condition s min. typ. max. unit drc (1,1), gain (1,0) - 46 - a v closed - loop gain drc (1,1), gain (1,1) - 28 - db v dd =12v, gnd=0v, t a =25 o c (unless otherwise noted) s t e r e o m o d e apa2607 symbol parameter test condition s min. typ. max. unit v dd = 16 v, t a =25 x c thd +n =1% f in =1 k hz r l = 8 w - 12 - p o output power thd +n =1 0 % f in =1 k hz r l = 8 w - 15 - w thd+n total harmonic distortion pulse noise f in =1 k hz r l = 8 w, p o = 6w - 0.07 0.1 % cros stalk channel separation p o = 0.5w, r l = 8 w, f in =1 k hz - - 70 - 60 f in =1 00 hz - - 65 - 55 psrr power supply rejection ratio r l = 8 w f in =1 k hz - - 65 - 55 cmrr common mode rejection ration f in =1 k hz , r l = 8 w, v in = 0. 1 vpp - - 65 - 55 att mute mute attenuation f in =1 k hz , r l = 8 w, v in =1 vpp - - 115 - 100 att shutdown shutdown attenuation f in =1 k hz , r l = 8 w, v in =1 vpp - - 115 - 100 db v os offset voltage no load, a v =22db - - 20 mv v n noise output voltage with a - weighted filter (a v =22db) - 230 500 m vrms v dd = 12 v, t a =25 x c r l = 4 w - 10 - thd +n =1% f in =1 k hz r l = 8 w - 6 - r l = 4 w - 14 - p o output powe r thd +n =1 0 % f in =1 k hz r l = 8 w - 8 - w r l = 4 w, p o = 7 w - 0.07 0.1 thd+n total harmonic distortion p ulse noise f in =1 k hz r l = 8 w, p o = 4.5 w - 0.07 0.1 % crosstalk channel separation 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 = 1v pp - - 115 - 100 att shutdown shutdown attenuation f in =1 k hz , r l = 8 w , v in = 1v pp - - 115 - 100 db v os offset voltage no load, a v =22db - - 20 mv v n noise output voltage w ith a - weight ing filter (a v =22db) - 230 500 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 6 a p a 2 6 0 7 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) s t e r e o m o d e ( c o n t . ) apa2607 symbol parameter test condition s min. typ. max. unit v dd =8v, t a =25 x c r l =4 w - 5.5 - thd+n=1% f in =1khz r l =8 w - 3.2 - r l =4 w - 7 - p o output power thd+n=10% f in =1khz r l =8 w - 4 - w r l =4 w, p o =4.5w - 0.1 0.2 thd+n total harmonic distortion pulse noise f in =1khz r l =8 w, p o =2.5w - 0.1 0.2 % crosstalk channel separation p o =0.5w, r l =8 w , f in =1khz - - 60 - 60 f in =100hz - - 65 - 55 psrr power supply rejection ratio r l =8 w f in =1khz - - 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 =1khz, r l =8 w , v in =1v pp - - 115 - 100 att shutdown shutdown attenuation f in =1khz, r l =8 w , v in =1v pp - - 115 - 100 db v os offset voltage no load, a v =22db - - 20 mv v n noise output volta ge w ith a - weight ing filter (a v =22db) - 200 400 m vrms m o n o m o d e apa2607 symbol parameter test condition s min. typ. max. unit v dd = 12 v, t a =25 x c thd +n =1% f in =1 k hz r l = 4 w - 12 - p o output power thd +n =1 0 % f in =1 k hz r l = 4 w - 14 - w thd+n total harmonic distortion pulse noise f in =1 k hz r l = 4 w p o = 8 w - 0.08 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 attenuation f in =1 k hz , r l = 8 w , v in = 1vrms - - 115 - 100 att shutdown sh utdown 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 - weight ing filter (a v =22db) - 200 400 m vr ms
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 0 7 t y p i c a l o p e r a t i n g c h a r a c t e r i s t i c s e f f i c i e n c y v s . o u t p u t p o w e r ( 4 w ) e f f i c i e n c y v s . o u t p u t p o w e r ( 8 w ) o u t p u t p o w e r v s . s u p p l y v o l t a g e o u t p u t p o w e r v s . s u p p l y v o l t a g e o u t p u t p o w e r v s . s u p p l y v o l t a g e ( m o n o m o d e ) t h d + n v s . o u t p u t p o w e r 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 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 = 12 v v dd = 8 v 100 0 10 20 30 40 50 60 70 80 90 100 0 2 4 6 8 10 12 14 16 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 ) 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 = 10 % thd + n = 1 % 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 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 % r l = 8 w f in = 1 khz c i = 1 m f a v = 22 db aux - 0025 aes - 17 ( 20 khz ) s ingle c hannel thd + n = 10 % 6 8 10 12 14 16 20 8 9 10 11 12 o u t p u t p o w e r ( w ) supply voltage ( v ) thd + n = 10 % thd + n = 1 % 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 18 0 . 01 10 0 . 02 0 . 05 0 . 1 0 . 2 0 . 5 1 2 5 2 20 4 6 8 10 12 14 16 18 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 = 12 v v dd = 8 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 8 a p a 2 6 0 7 t y p i c a l o p e r a t i n g c h a r a c t e r i s t i c s ( c o n t . ) t h d + n v s . o u t p u t p o w e r t h d + n v s . o u t p u t p o w e r t h d + n v s . f r e q u e n c y t h d + n v s . f r e q u e n c y t h d + n v s . f r e q u e n c y c r o s s t a l k v s . f r e q u e n c y frequency (hz) t h d + n ( % ) 0.006 1 0.01 0.1 20 20k 100 1k 10k 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 frequency (hz) t h d + n ( % ) 0.006 1 0.01 0.1 20 20k 100 1k 10k 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 frequency (hz) t h d + n ( % ) 0.006 1 0.01 0.1 20 20k 100 1k 10k v dd =12v r l =4 w c i =1 m f aux-0025 aes-17(20khz) mono mode p o =11w a v =34db p o =11w a v =22db p o =1w a v =22db p o =1w a v =34db c r o s s t a l k ( d b ) 20 20k 100 1k 10k v dd =12v r l =4 w p o =1w c i =1 m f av=22db aux-0025 aes-17(20khz) frequency (hz) left channel to right channel right channel to left channel -120 +0 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 output power (w) t h d + n ( % ) r l =8 w f in =1khz c i =1 m f a v =22db aux-0025 aes-17(20khz) v dd =16v v dd =12v v dd =8v 0 22 2 4 6 8 10 12 14 16 18 20 0.01 10 0.1 1 output power (w) t h d + n ( % ) 0.01 10 0.1 1 0 45 5 10 15 20 25 30 35 40 r l =4 w f in =1khz c i =1 m f a v =22db aux-0025 aes-17(20khz) mono mode v dd =12v v dd =8v v dd =16v
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 0 7 t y p i c a l o p e r a t i n g c h a r a c t e r i s t i c s ( c o n t . ) c r o s s t a l k v s . f r e q u e n c y o u t p u t n o i s e v o l t a g e v s . f r e q u e n c y o u t p u t n o i s e v o l t a g e v s . f r e q u e n c y f r e q u e n c y r e s p o n s e f r e q u e n c y r e s p o n s e p s r r v s . f r e q u e n c y 20 20k 100 1k 10k 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) -120 +0 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 20 20k 100 1k 10k 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 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 10 m 1m 100 m 20 100k 100 1k 10k 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 +80 +12 +37 +14.5 +17 +19.5 +22 +24.5 +27 +29.5 +32 +34.5 20 100k 100 1k 10k 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 ) -180 -160 -140 -120 -100 -80 -60 -40 -20 +0 +20 +40 +60 p s r r ( d b ) frequency (hz) 20 20k 100 1k 10k 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) -120 +0 -100 -80 -60 -40 -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 1 0 a p a 2 6 0 7 t y p i c a l o p e r a t i n g c h a r a c t e r i s t i c s ( c o n t . ) p s r r v s . f r e q u e n c y m u t e a t t e n u a t i o n v s . f r e q u e n c y s h u t d o w n a t t e n u a t i o n v s . f r e q u e n c y s u p p l y c u r r e n t v s . o u t p u t p o w e r s u p p l y c u r r e n t v s . o u t p u t p o w e r s u p p l y c u r r e n t v s . o u t p u t p o w e r p s r r ( d b ) frequency (hz) 20 20k 100 1k 10k 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 20 20k 100 1k 10k 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 20 20k 100 1k 10k 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 l 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 =4 w +33 m h f in =1khz c i =1 m f a v =22db thd+n ?? 1% mono mode aux-0025 aes-17(20khz) 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 each channel output power ( w ) s u p p l y c u r r e n t ( a ) 0 2 4 6 8 10 12 14 r l = 4 w + 33 m h f in = 1 khz c i = 1 m f a v = 22 db thd + n ?? 1 % aux - 0025 aes - 17 ( 20 khz ) single channel v dd = 12 v v dd = 8 v 0 0 . 2 0 . 4 0 . 6 0 . 8 1 . 0 1 . 2 1 . 4 each channel output power ( w ) s u p p l y c u r r e n t ( a ) v dd = 16 v v dd = 8 v v dd = 12 v r l = 8 w + 33 m h f in = 1 khz c i = 1 m f a v = 22 db thd + n ?? 1 % aux - 0025 aes - 17 ( 20 khz ) single channel 0 0 . 1 0 . 2 0 . 3 0 . 4 0 . 5 0 . 6 0 . 7 0 . 8 0 . 9 1 0 2 4 6 8 10 12 14
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 0 7 t y p i c a l o p e r a t i n g c h a r a c t e r i s t i c s ( c o n t . ) s u p p l y c u r r e n t v s . s u p p l y v o l t a g e m u t e c u r r e n t v s . s u p p l y v o l t a g e s h u t d o w n c u r r e n t v s . s u p p l y v o l t a g e i n p u t v o l t a g e v s . o u t p u t v o l t a g e i n p u t v o l t a g e v s . o u t p u t v o l t a g e i n p u t v o l t a g e v s . o u t p u t v o l t a g e 0 2 4 6 8 10 12 14 16 18 20 s u p p l y c u r r e n t ( m a ) supply voltage (v) no load 0.0 5.0 10.0 15.0 20.0 25.0 s u p p l y c u r r e n t ( m a ) supply voltage (v) 0 1 2 3 4 5 0 2 4 6 8 10 12 14 16 18 no load o u t p u t v o l t a g e ( v ) input voltage (v) 200m 20 1 10 1m 1 10m 100m v dd =12v v pmax =0.5v 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 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 200m 20 1 10 0.2 20 1 10 0.001 1 0.01 0.1 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 supply voltage (v) s u p p l y c u r r e n t ( m a ) no load 0 1 2 3 4 5 6 0 2 4 6 8 10 12 14 16 18
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 0 7 pin no. name i/o/p function 1 avdd p power supply for control block. 2 3v3reg o regulator output, 3.3v. 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. 10,16 rpvdd p the power supply for r ight 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 shutd own mode control input, place entire ic in shutdown mode when held low. 18 pflag o protection flag output. 19 mute i mute mode control input; pull low to mute the class - d amplifier ? s output. 20 osco o the internal oscillator ? s output, for synchronizati on other apa2607s. 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 compress) control; msb bit 1. 24 gain0 i control pin for internal gain setting, lsb, b it0. 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 clas s - d amplifier. 30,31 loutp o the positive output of left channel class - d amplifier. p i n d e s c r i 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 3 a p a 2 6 0 7 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 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 3.3v regulator
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 0 7 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 linn 4 p m a x 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 2 5 g a i n 1 20 osco 19 mute 18 pflag g a i n s e t t i n g 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 apa2607 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 gain setting bead bead 1n f 1n f bead bead 1n f 1n f s t e r e o o p e r a t i o n
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 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 0 7 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 ( c o n t . ) m o n a u r a l o p e r a t i o n linn 4 p m a x 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 2 5 g a i n 1 20 osco 19 mute 18 pflag g a i n s e t t i n g 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 apa2607 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 c s1 v dd v dd v dd v dd gain setting v dd bead 1n f bead 1n f bead bead 1n f 1n f
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 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 0 7 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 0 7 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 7 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 t h e 3 v 3 r e g r e g u l a t e s t h e v o l t a g e a t 3 . 3 v a n d o n l y f o r i n t e r n a l c i r c u i t u s e d , a n d c o n n e c t s a c a p a c i t o r f r o m 1 m f t o 4 . 7 m f ( x 5 r o r a b o v e ) f o r s t a b l e . ( 0 . 8 m f o r m o r e s h o u l d b e s e c u r e d i n c l u d i n g i t s v a r i a t i o n a n d t e m p e r a t u r e c h a n g e . ) reference voltage t h e v o l t a g e o u t p u t o f v r e f p i n i s e q u a l t o 3 v 3 r e g / 2 a n d n e e d s t o c o n n e c t a c a p a c i t o r o f 0 . 1 m f f o r v o l t a g e s t a b i l i z a t i o n . 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 0 7 ? 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 e d a t t a b l e 1 . mute operation at the mute state, the class-d output is 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 0 7 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 7 . 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
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 0 7 f u n c t i o n d e s c r i p t i o n ( c o n t . ) 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 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 7 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 7 ? 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 . 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 l o w , t h e a p a 2 6 0 7 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 h i g h , t h e a p a 2 6 0 7 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 0 7 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 apa2607 for prevent exceed the maximum power of speaker. ex- cept drc 2 mode, this function is always enabled. the setting value can be a voltage divider by the 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 increased by 12db to compare to the normal mode. the output peak voltage becomes to the power limit value. if the peak volt- age excesses the power limit value, it will be the attenu- ation to the power limit value, and the maximum attenua- tion is -12db. the attack time is zero second, and needs 7.7 seconds to release the non-clip function from -12db to 0db. the non-clip operation should be switched under power- off or shutdown mode to prevent the pop noise between the mode switching. 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 drc1 mode: drc [1:0]=10 (drc1=high, and drc0 =low), the drc 1 mode is active. the gain is increased by 12db to compare to the normal mode. the power limit value is the point that active the dynamic range com- pression function. and the maximum attenuation is -12db. the attack time is zero second, and needs 3.9 seconds to release the non-clip function from -12db to 0db. drc2 mode: drc [1:0]=11 (drc1=high, and drc0 =high), similar to the drc 1 mode, but the perform the power limit function. the drc operation should be switched under power-off or shutdown mode to prevent the pop noise between the mode switching. stereo/mono switching operation w h e n c o n n e c t i n g 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 0 7 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 0 7 . 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 t o c o m p a r e 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 .
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 0 7 f u n c t i o n d e s c r i p t i o n ( c o n t . ) multi-apa2607 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 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 . 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 0 7 ( 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 . 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 power 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 0 7 a n d t h e t i m e e x c e s s e s 0 . 5 s , t h e a p a 2 6 0 7 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 0 7 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 0 7 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 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 , a n d t h e a p a 2 6 0 7 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 p r o t e c t i o n o c c u r . 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 apa2607 being destroyed by over-temperature. when the junction temperature excesses 155c and un- der the 165c, the apa2607 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. and when junction temperature excesses 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 cancelled when junction lower than 130c. some contitions, like v dd =5v, r l =4 w , can?t meet spec p o =10w because ic into thermal shutdown. output power curve use dot line to indicate thermal limit.
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 0 7 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 . b u t 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 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 resistance, r i t h e a p a 2 6 0 7 ? 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 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 0 % ) 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 : 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 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 . e q u a t i o n i s r e c o n f i g u r e d a s b e l o w : w h e n t h e i n p u t r e s i s t a n c e v a r i a t i o n i s c o n s i d e r e d , t h e c i i s 0 . 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 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 t h e r e i s h e l d a t v 3 c 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 0 7 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 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 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 . 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 . 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 (1) c r 2 1 f i i ) c(highpass p = (2) f r 2 1 c c i i p = v on v op 4 w 1n f 1n f ferrite bead ferrite bead outp outn 8 w 1 m f 36 m h 36 m h 1 m f
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 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 0 7 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.) outp outn 4 w 2.2 m f 18 m h 18 m h 2.2 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 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) lc 2 1 f c(lowpass) p = power-supply decoupling capacitor, c s t h e a p a 2 6 0 7 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 s 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 d 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 , 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 0 7 . 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 d t o a p a 2 6 0 7 ? 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 7 ? 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 7 ? 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. tqfn5x5-32 land pattern recommendation 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 t q f n 5 x 5 - 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 . 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 apa2607 c11 1 m f v dd v dd c11 1 m f
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 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 0 7 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.) f i g u r e 6 . t q f n 5 x 5 - 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 3 . 6 m m 3.6mm 0.5mm 0.25mm ground plane for thermalpad thermalvia diameter 0.3mm x 9 4 . 1 m m solder mask to prevent short-circuit 1.15mm
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 0 7 p a c k a g e i n f o r m a t i o n tqfn5x5-32 note : followed jedec mo-220 whhd-4. 0.020 bsc 0.20 0.008 k 4.90 5.10 0.193 0.201 4.90 5.10 0.193 0.201 s y m b o l min. max. 0.80 0.00 0.18 0.30 3.50 3.80 0.05 3.50 a a1 b d d2 e e2 e l millimeters a3 0.20 ref tqfn5x5-32 0.35 0.45 3.80 0.008 ref min. max. inches 0.031 0.000 0.007 0.012 0.138 0.150 0.138 0.014 0.018 0.70 0.150 0.028 0.002 0.50 bsc 0.003 aaa 0.08 d2 e 2 pin 1 corner e l k pin 1 e d a b a1 a3 nx aaa c
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 4 - 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 0 7 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 tqfn5x5 - 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 5.30 ? 0.20 5.30 ? 0.20 1.30 ? 0.20 (mm) c a r r i e r t a p e & r e e l d i m e n s i o n s d e v i c e s p e r u n i t package type unit quantity tqfn5x5 - 32 tape & reel 2500 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
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 0 7 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 tqfn5x5-32 c l a s s i f i c a t i o n p r o f i l e 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 5 a p a 2 6 0 7 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 spe cified 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 as 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 6 a p a 2 6 0 7 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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