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2EZ11 063EB SKY77752 EPJ4021 1N823 CS453 BUX47A 9013H
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  h i g h e f f i c i e n c y , g r o u n d - r e f e r e n c e d c l a s s - g h e a d p h o n e a m p l i f i e r d a t a s h e e t s s m 2 9 3 2 r e v . 0 i n f o r m a t i o n f u r n i s h e d b y a n a l o g d e v i c e s i s b e l i e v e d t o b e a c c u r a t e a n d r e l i a b l e . h o w e v e r , n o r e s p o n s i b i l i t y i s a s s u m e d b y a n a l o g d e v i c e s f o r i t s u s e , n o r f o r a n y i n f r i n g e m e n t s o f p a t e n t s o r o t h e r r i g h t s o f t h i r d p a r t i e s t h a t m a y r e s u l t f r o m i t s u s e . s p e c i f i c a t i o n s s u b j e c t t o c h a n g e w i t h o u t n o t i c e . n o l i c e n s e i s g r a n t e d b y i m p l i c a t i o n o r o t h e r w i s e u n d e r a n y p a t e n t o r p a t e n t r i g h t s o f a n a l o g d e v i c e s . t r a d e m a r k s a n d r e g i s t e r e d t r a d e m a r k s a r e t h e p r o p e r t y o f t h e i r r e s p e c t i v e o w n e r s . o n e t e c h n o l o g y w a y , p . o . b o x 9 1 0 6 , n o r w o o d , m a 0 2 0 6 2 - 9 1 0 6 , u . s . a . t e l : 7 8 1 . 3 2 9 . 4 7 0 0 w w w . a n a l o g . c o m f a x : 7 8 1 . 4 6 1 . 3 1 1 3 ? 2 0 1 2 a n a l o g d e v i c e s , i n c . a l l r i g h t s r e s e r v e d . f e a t u r e s g r o u n d - r e f e r e n c e d c l a s s - g o u t p u t s t a g e v e r y h i g h e f f i c i e n c y f o r p o r t a b l e a p p l i c a t i o n s 1 . 7 m a t y p i c a l q u i e s c e n t c u r r e n t 5 0 m w p e r c h a n n e l i n t o 1 6  l o a d ( w i t h 3 . 3 v s u p p l y ) 9 8 d b s i g n a l - t o - n o i s e r a t i o ( s n r ) , a - w e i g h t e d 9 0 d b p o w e r s u p p l y r e j e c t i o n r a t i o a t 2 1 7 h z 2 . 5 v t o 3 . 6 v s u p p l y r a n g e s e l e c t a b l e g a i n : 0 d b o r 6 d b h i g h - z o u t p u t m o d e f o r s h a r i n g o f o u t p u t j a c k 1  a s h u t d o w n c u r r e n t s h o r t - c i r c u i t p r o t e c t i o n p o p - a n d - c l i c k r e d u c t i o n c i r c u i t r y 8 k v e s d p r o t e c t i o n o n o u t p u t t e r m i n a l s 1 6  b a l l , 0 . 4 m m p i t c h w l c s p ( 1 . 6 4 m m 1 . 6 4 m m ) ? 4 0 c t o + 8 5 c o p e r a t i n g t e m p e r a t u r e r a n g e a p p l i c a t i o n s c e l l p h o n e s s m a r t p h o n e s / m u l t i m e d i a p h o n e s d i g i t a l c a m e r a s p o r t a b l e m e d i a p l a y e r s p h o n e a c c e s s o r i e s p d a s g e n e r a l d e s c r i p t i o n t h e s s m 2 9 3 2 i s a s t e r e o h e a d p h o n e a m p l i f i e r c a p a b l e o f d e l i v e r i n g 5 0 m w o f c o n t i n u o u s o u t p u t p o w e r p e r c h a n n e l i n t o 1 6  s i n g l e - e n d e d l o a d s a t t h e 1 % t h d + n t h r e s h o l d . t h e s t e r e o h e a d p h o n e d r i v e r s a r e h i g h e f f i c i e n c y , t r u e g r o u n d - r e f e r e n c e d c l a s s - g t e c h n o l o g y . t h e s s m 2 9 3 2 i n c o r p o r a t e s a g a i n c o n t r o l p i n t h a t s e l e c t s a g a i n o f 0 d b o r 6 d b . t h e g r o u n d - r e f e r e n c e d o u t p u t s c h e m e e l i m i n a t e s t h e n e e d f o r l a r g e d c b l o c k i n g c a p a c i t o r s , r e d u c i n g s y s t e m c o s t a n d b o a r d a r e a . t h e c l a s s - g a m p l i f i e r i s f i n e - t u n e d t o m a x i m i z e b a t t e r y l i f e , a c r i t i c a l t a s k i n p o r t a b l e a p p l i c a t i o n s . t h e d e v i c e m a x i m i z e s b a t t e r y l i f e b y m o d u l a t i n g t h e a m p l i f i e r p o w e r s u p p l y r a i l t o m a t c h t h e o u t p u t d e m a n d w i t h o u t c o n s u m i n g e x c e s s i v e s u p p l y c u r r e n t , t h u s r e d u c i n g p o w e r d i s s i p a t i o n d u r i n g t y p i c a l a u d i o p l a y b a c k . t h e s s m 2 9 3 2 i s s p e c i f i e d o v e r t h e i n d u s t r i a l t e m p e r a t u r e r a n g e o f ? 4 0 q c t o + 8 5 q c . i t h a s o u t p u t s h o r t - c i r c u i t p r o t e c t i o n a s w e l l a s e s d p r o t e c t i o n t o 8 k v ( h u m a n b o d y m o d e l ) . t h e s s m 2 9 3 2 i s a v a i l a b l e i n a 1 6 - b a l l , 1 . 6 4 m m 1 . 6 4 m m w a f e r l e v e l c h i p s c a l e p a c k a g e ( w l c s p ) . f u n c t i o n a l b l o c k d i a g r a m 1 0 3 6 0 - 0 0 1 p o r g a i n p o w e r m a n a g e m e n t p g a p g a p o p / c l i c k c u r r e n t l i m i t s s m 2 9 3 2 o u t l s g n d o u t r i n l + i n l ? i n r + i n r ? p g n d p v d d c p v s s c p v d d c f 2 c f 1 g a i n h i - z s d f i g u r e 1 .
s s m 2 9 3 2 d a t a s h e e t r e v . 0 | p a g e 2 o f 1 6 t a b l e o f c o n t e n t s f e a t u r e s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1  a p p l i c a t i o n s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1  g e n e r a l d e s c r i p t i o n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1  f u n c t i o n a l b l o c k d i a g r a m . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1  r e v i s i o n h i s t o r y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2  s p e c i f i c a t i o n s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3  d i g i t a l i n p u t s p e c i f i c a t i o n s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4  a b s o l u t e m a x i m u m r a t i n g s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5  t h e r m a l r e s i s t a n c e . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5  e s d c a u t i o n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5  p i n c o n f i g u r a t i o n a n d f u n c t i o n d e s c r i p t i o n s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6  t y p i c a l p e r f o r m a n c e c h a r a c t e r i s t i c s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7  t h e o r y o f o p e r a t i o n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2  a m p l i f i e r g a i n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2  a m p l i f i e r s h u t d o w n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2  h i g h o u t p u t i m p e d a n c e . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2  g r o u n d s e n s e . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2  l a y o u t . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2  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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 4  o u t l i n e d i m e n s i o n s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 5  o r d e r i n g g u i d e . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 5  r e v i s i o n h i s t o r y 2 / 1 2 ? r e v i s i o n 0 : i n i t i a l v e r s i o n
d a t a s h e e t s s m 2 9 3 2 r e v . 0 | p a g e 3 o f 1 6 s p e c i f i c a t i o n s p v d d = 3 . 0 v , c c f = 1 f , c c p v d d = c c p v s s = 2 . 2 f , r l = 3 2  , t a = 2 5 c , u n l e s s o t h e r w i s e n o t e d . t a b l e 1 . p a r a m e t e r s y m b o l t e s t c o n d i t i o n s / c o m m e n t s m i n t y p m a x u n i t d e v i c e c h a r a c t e r i s t i c s v o l t a g e g a i n a v i n p u t v o l t a g e = 1 0 0 m v r m s g a i n p i n h i g h 6 d b g a i n p i n l o w 0 d b o u t p u t p o w e r p o f = 1 k h z , t h d = 1 % r l = 1 6  , o n e c h a n n e l 8 5 m w r l = 3 2  , o n e c h a n n e l 5 0 m w r l = 1 6  , s t e r e o 4 0 m w r l = 3 2  , s t e r e o 4 5 m w t o t a l h a r m o n i c d i s t o r t i o n p l u s n o i s e t h d + n p o = 1 0 m w p e r c h a n n e l 0 . 0 1 % g a i n m a t c h i n g  a v 1 % f r e q u e n c y r a n g e r i p p l e w i t h i n 0 . 5 d b 2 0 2 0 , 0 0 0 h z d i f f e r e n t i a l i n p u t i m p e d a n c e z i n 1 2 1 8 3 4 . 5 k  c h a r g e p u m p o s c i l l a t o r f r e q u e n c y f o s c 0 i d l e m o d e , v o u t = 0 v 5 4 k h z f o s c 1 a c t i v e m o d e 5 5 0 k h z h e a d p h o n e a m p l i f i e r s u p p l y p o s i t i v e r a i l v c p v d d e f f i c i e n c y m o d e : v o u t < 0 . 2 v r m s p v d d / 2 v h i g h p o w e r m o d e : v o u t > 0 . 2 v r m s 2 . 2 v n e g a t i v e r a i l v c p v s s e f f i c i e n c y m o d e : v o u t < 0 . 2 v r m s ? p v d d / 2 v h i g h p o w e r m o d e : v o u t > 0 . 2 v r m s ? 2 . 2 v o u t p u t v o l t a g e t h r e s h o l d v t h 1 t r a n s i t i o n f r o m e f f i c i e n c y m o d e t o h i g h p o w e r m o d e 2 8 5 m v v t h 2 t r a n s i t i o n f r o m h i g h p o w e r m o d e t o e f f i c i e n c y m o d e 3 7 5 m v c h a r g e p u m p t r a n s i t i o n t i m e t r e l e a s e c h a r g e p u m p t r a n s i t i o n f r o m h i g h p o w e r m o d e t o e f f i c i e n c y m o d e 0 . 8 m s t a t t a c k c h a r g e p u m p t r a n s i t i o n f r o m e f f i c i e n c y m o d e t o h i g h p o w e r m o d e 1 0 s n o i s e p e r f o r m a n c e o u t p u t v o l t a g e n o i s e e n b w = 2 0 k h z , a - w e i g h t e d , g a i n = 0 d b 1 2  v r m s s i g n a l - t o - n o i s e r a t i o s n r a - w e i g h t e d 9 8 d b p o p - a n d - c l i c k n o i s e v c p ? 6 0 d b v c h a n n e l s e p a r a t i o n x t a l k s i n g l e - e n d e d , 1 v r m s , p o = 3 1 m w 8 6 d b o u t p u t c h a r a c t e r i s t i c s o u t p u t o f f s e t v o l t a g e | v o s | 0 . 2 5 m v c a p a c i t i v e o u t p u t d r i v e c l o a d 1 5 0 p f s l e w r a t e s r 1 . 2 5 v /  s s t a r t u p a n d s h u t d o w n m e a s u r e d f r o m s d r i s i n g e d g e s t a r t - u p t i m e t s u 2 0 m s s h u t d o w n t i m e t s d 3 6 s p o w e r s u p p l y 0 c < t a < 7 0 c s u p p l y v o l t a g e r a n g e p v d d g u a r a n t e e d f r o m p s r r t e s t 2 . 5 3 . 6 v q u i e s c e n t c u r r e n t i d d r l = 3 2  + 2 0 0 p f ; g a i n = 0 d b , p v d d = 3 v 1 . 7 m a s h u t d o w n c u r r e n t i s d s d = g n d 1 a p o w e r s u p p l y r e j e c t i o n r a t i o p s r r v r i p p l e = 1 0 0 m v p e a k , g a i n = 0 d b f = 2 1 7 h z 9 0 d b f = 1 k h z 8 4 d b f = 1 0 k h z 6 2 d b
s s m 2 9 3 2 d a t a s h e e t r e v . 0 | p a g e 4 o f 1 6 d i g i t a l i n p u t s p e c i f i c a t i o n s t a b l e 2 . p a r a m e t e r s y m b o l t e s t c o n d i t i o n s / c o m m e n t s m i n t y p m a x u n i t i n p u t v o l t a g e h i g h v i h 1 . 2 v i n p u t v o l t a g e l o w v i l 0 . 5 v i n p u t l e a k a g e c u r r e n t i i n v i n = 0 v o r v d d 1 a i n p u t c a p a c i t a n c e c i n 5 p f
d a t a s h e e t s s m 2 9 3 2 r e v . 0 | p a g e 5 o f 1 6 a b s o l u t e m a x i m u m r a t i n g s t a = 2 5 c , u n l e s s o t h e r w i s e n o t e d . t h e r m a l r e s i s t a n c e  j a i s s p e c i f i e d f o r t h e w o r s t - c a s e c o n d i t i o n s , t h a t i s , a d e v i c e s o l d e r e d i n a c i r c u i t b o a r d f o r s u r f a c e - m o u n t p a c k a g e s . t a b l e 3 . p a r a m e t e r r a t i n g a n a l o g s u p p l y v o l t a g e ( p v d d ) 3 . 7 5 v i n p u t v o l t a g e 1 . 8 v p e a k o u t p u t e s d , h u m a n b o d y m o d e l 8 k v s t o r a g e t e m p e r a t u r e r a n g e ? 6 5 c t o + 1 5 0 c o p e r a t i n g t e m p e r a t u r e r a n g e ? 4 0 c t o + 8 5 c j u n c t i o n t e m p e r a t u r e r a n g e ? 6 5 c t o + 1 6 5 c l e a d t e m p e r a t u r e ( s o l d e r i n g , 6 0 s e c ) 3 0 0 c t a b l e 4 . t h e r m a l r e s i s t a n c e p a c k a g e t y p e  j a u n i t 1 6 - b a l l , 1 . 6 4 m m 1 . 6 4 m m w l c s p 6 6 c / w e s d c a u t i o n s t r e s s e s a b o v e 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 i s i s a s t r e s s r a t i n g o n l y ; 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 a b o v e t h o s e i n d i c a t e d i n t h e o p e r a t i o n a l s e c t i o n o f t h i s s p e c i f i c a t i o n 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 .
s s m 2 9 3 2 d a t a s h e e t r e v . 0 | p a g e 6 o f 1 6 p i n c o n f i g u r a t i o n a n d f u n c t i o n d e s c r i p t i o n s t o p v i e w ( b a l l s i d e d o w n ) n o t t o s c a l e 1 0 3 6 0 - 0 0 2 1 a bc d 2 3 4 b a l l a 1 i n d i c a t o r s d p g n d c f 2 h i - z o u t l c p v d d s g n d o u t r i n l ? i n l + i n r + i n r ? p v d d c f 1 c p v s s g a i n f i g u r e 2 . p i n c o n f i g u r a t i o n t a b l e 5 . p i n f u n c t i o n d e s c r i p t i o n s p i n n o . m n e m o n i c d e s c r i p t i o n a 1 s d s h u t d o w n c o n t r o l b 1 p g n d p o w e r g r o u n d c 1 c f 2 c h a r g e p u m p f l y i n g c a p a c i t o r , t e r m i n a l 2 d 1 h i - z o u t p u t i m p e d a n c e s e l e c t a 2 p v d d p o w e r s u p p l y b 2 c f 1 c h a r g e p u m p f l y i n g c a p a c i t o r , t e r m i n a l 1 c 2 c p v s s c h a r g e p u m p n e g a t i v e s u p p l y d 2 g a i n g a i n c o n t r o l a 3 o u t l l e f t c h a n n e l h e a d p h o n e o u t p u t b 3 c p v d d c h a r g e p u m p p o s i t i v e s u p p l y c 3 s g n d h e a d p h o n e s e n s e g r o u n d d 3 o u t r r i g h t c h a n n e l h e a d p h o n e o u t p u t a 4 i n l ? l e f t c h a n n e l i n v e r t i n g i n p u t b 4 i n l + l e f t c h a n n e l n o n i n v e r t i n g i n p u t c 4 i n r + r i g h t c h a n n e l n o n i n v e r t i n g i n p u t d 4 i n r ? r i g h t c h a n n e l i n v e r t i n g i n p u t
d a t a s h e e t s s m 2 9 3 2 r e v . 0 | p a g e 7 o f 1 6 t y p i c a l p e r f o r m a n c e c h a r a c t e r i s t i c s 1 0 0 1 0 1 0 . 1 0 . 0 1 0 . 0 0 1 0 . 1 1 1 0 1 0 0 o u t p u t p o w e r p e r c h a n n e l ( m w ) t h d + n ( % ) 1 0 3 6 0 - 0 0 4 i n p h a s e o u t o f p h a s e 1 0 0 1 0 1 0 . 1 0 . 0 1 0 . 0 0 1 0 . 1 1 1 0 1 0 0 o u t p u t p o w e r p e r c h a n n e l ( m w ) t h d + n ( % ) 1 0 3 6 0 - 0 0 3 i n p h a s e o u t o f p h a s e f i g u r e 3 . t h d + n v s . o u t p u t p o w e r , p v d d = 3 . 6 v , r l = 3 2  f i g u r e 6 . t h d + n v s . o u t p u t p o w e r , p v d d = 3 . 6 v , r l = 1 6  1 0 0 1 0 1 0 . 1 0 . 0 1 0 . 0 0 1 0 . 1 1 1 0 1 0 0 o u t p u t p o w e r p e r c h a n n e l ( m w ) t h d + n ( % ) 1 0 3 6 0 - 0 2 9 i n p h a s e o u t o f p h a s e 1 0 0 1 0 1 0 . 1 0 . 0 1 0 . 0 0 1 0 . 1 1 1 0 1 0 0 o u t p u t p o w e r p e r c h a n n e l ( m w ) t h d + n ( % ) 1 0 3 6 0 - 0 3 0 i n p h a s e o u t o f p h a s e f i g u r e 4 . t h d + n v s . o u t p u t p o w e r , p v d d = 3 . 0 v , r l = 3 2  f i g u r e 7 . t h d + n v s . o u t p u t p o w e r , p v d d = 3 . 0 v , r l = 1 6  1 0 0 1 0 1 0 . 1 0 . 0 1 0 . 0 0 1 0 . 1 1 1 0 1 0 0 o u t p u t p o w e r p e r c h a n n e l ( m w ) t h d + n ( % ) 1 0 3 6 0 - 0 0 6 i n p h a s e o u t o f p h a s e 1 0 0 1 0 1 0 . 1 0 . 0 1 0 . 0 0 1 0 . 1 1 1 0 1 0 0 o u t p u t p o w e r p e r c h a n n e l ( m w ) t h d + n ( % ) 1 0 3 6 0 - 0 0 5 i n p h a s e o u t o f p h a s e f i g u r e 5 . t h d + n v s . o u t p u t p o w e r , p v d d = 2 . 5 v , r l = 3 2  f i g u r e 8 . t h d + n v s . o u t p u t p o w e r , p v d d = 2 . 5 v , r l = 1 6 
s s m 2 9 3 2 d a t a s h e e t r e v . 0 | p a g e 8 o f 1 6 1 0 . 1 0 . 0 1 0 . 0 0 1 1 0 1 0 0 1 k 1 0 k 1 0 0 k f r e q u e n c y ( h z ) t h d + n ( % ) 1 0 3 6 0 - 0 0 7 p o = 5 m w p o = 1 0 m w p o = 2 0 m w f i g u r e 9 . t h d + n v s . f r e q u e n c y , p v d d = 3 . 6 v , r l = 3 2  1 0 . 1 0 . 0 1 0 . 0 0 1 1 0 1 0 0 1 k 1 0 k 1 0 0 k f r e q u e n c y ( h z ) t h d + n ( % ) 1 0 3 6 0 - 0 0 9 p o = 5 m w p o = 1 0 m w p o = 2 0 m w f i g u r e 1 0 . t h d + n v s . f r e q u e n c y , p v d d = 2 . 5 v , r l = 3 2  ? 5 0 ? 8 0 ? 7 0 ? 6 0 ? 9 0 ? 1 0 0 1 0 1 0 0 1 k 1 0 k 1 0 0 k f r e q u e n c y ( h z ) p s r r ( d b ) 1 0 3 6 0 - 0 1 1 l e f t c h a n n e l r i g h t c h a n n e l f i g u r e 1 1 . p s r r v s . f r e q u e n c y , p v d d = 3 . 0 v , r l = 3 2  1 0 . 1 0 . 0 1 0 . 0 0 1 1 0 1 0 0 1 k 1 0 k 1 0 0 k f r e q u e n c y ( h z ) t h d + n ( % ) 1 0 3 6 0 - 0 0 8 p o = 5 m w p o = 1 0 m w p o = 2 0 m w f i g u r e 1 2 . t h d + n v s . f r e q u e n c y , p v d d = 3 . 6 v , r l = 1 6  1 0 . 1 0 . 0 1 0 . 0 0 1 1 0 1 0 0 1 k 1 0 k 1 0 0 k f r e q u e n c y ( h z ) t h d + n ( % ) 1 0 3 6 0 - 0 1 0 p o = 5 m w p o = 1 0 m w p o = 2 0 m w f i g u r e 1 3 . t h d + n v s . f r e q u e n c y , p v d d = 2 . 5 v , r l = 1 6  ? 5 0 ? 8 0 ? 7 0 ? 6 0 ? 9 0 ? 1 0 0 1 0 1 0 0 1 k 1 0 k 1 0 0 k f r e q u e n c y ( h z ) p s r r ( d b ) 1 0 3 6 0 - 0 1 2 l e f t c h a n n e l r i g h t c h a n n e l f i g u r e 1 4 . p s r r v s . f r e q u e n c y , p v d d = 3 . 0 v , r l = 1 6 
d a t a s h e e t s s m 2 9 3 2 r e v . 0 | p a g e 9 o f 1 6 1 7 0 1 5 0 1 3 0 1 1 0 9 0 7 0 5 0 2 . 5 2 . 7 2 . 9 3 . 1 3 . 3 3 . 5 s u p p l y v o l t a g e ( v ) t o t a l o u t p u t p o w e r ( m w ) 1 0 3 6 0 - 0 1 3 t h d + n = 1 % t h d + n = 1 0 % f i g u r e 1 5 . 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 , r l = 3 2  0 . 2 0 . 1 0 ? 0 . 1 ? 0 . 2 1 0 1 0 0 1 k 1 0 k 1 0 0 k f r e q u e n c y ( h z ) g a i n ( d b ) 1 0 3 6 0 - 0 1 5 f i g u r e 1 6 . f r e q u e n c y r e s p o n s e , p v d d = 3 . 0 v ? 7 5 ? 8 0 ? 8 5 ? 9 0 ? 9 5 ? 1 0 0 ? 1 0 5 ? 1 1 0 ? 1 1 5 1 0 1 0 0 1 k 1 0 k 1 0 0 k f r e q u e n c y ( h z ) c h a n n e l s e p a r a t i o n ( d b ) 1 0 3 6 0 - 0 1 7 r i g h t t o l e f t l e f t t o r i g h t f i g u r e 1 7 . c h a n n e l s e p a r a t i o n v s . f r e q u e n c y , p v d d = 3 . 0 v , r l = 3 2  2 1 0 1 9 0 1 7 0 1 5 0 1 3 0 9 0 1 1 0 3 0 5 0 7 0 2 . 5 2 . 7 2 . 9 3 . 1 3 . 3 3 . 5 s u p p l y v o l t a g e ( v ) t o t a l o u t p u t p o w e r ( m w ) 1 0 3 6 0 - 0 1 4 t h d + n = 1 % t h d + n = 1 0 % f i g u r e 1 8 . 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 , r l = 1 6  1 0 0 k 1 k 1 0 k 1 0 0 1 0 0 1 k 1 0 k 1 0 0 k 1 m 1 0 m f r e q u e n c y ( h z ) i m p e d a n c e ( ? ) 1 0 3 6 0 - 0 1 6 f i g u r e 1 9 . h i g h - z m o d e o u t p u t i m p e d a n c e v s . f r e q u e n c y ? 5 5 ? 6 0 ? 6 5 ? 7 0 ? 7 5 ? 8 0 ? 8 5 ? 9 0 ? 9 5 1 0 1 0 0 1 k 1 0 k 1 0 0 k f r e q u e n c y ( h z ) c h a n n e l s e p a r a t i o n ( d b ) 1 0 3 6 0 - 0 1 8 r i g h t t o l e f t l e f t t o r i g h t f i g u r e 2 0 . c h a n n e l s e p a r a t i o n v s . f r e q u e n c y , p v d d = 3 . 0 v , r l = 1 6 
s s m 2 9 3 2 d a t a s h e e t r e v . 0 | p a g e 1 0 o f 1 6 0 0 2 5 0 2 0 0 1 5 0 5 0 1 0 0 0 0 2 0 4 0 6 0 8 0 1 t o t a l o u t p u t p o w e r ( m w ) p o w e r c o n s u m p t i o n ( m w ) 1 0 3 6 0 - 0 2 0 f i g u r e 2 1 . p o w e r c o n s u m p t i o n v s . o u t p u t p o w e r , p v d d = 3 . 0 v , r l = 3 2  1 4 0 1 2 0 1 0 0 8 0 4 0 6 0 2 0 0 0 2 0 4 0 6 0 8 0 1 t o t a l o u t p u t p o w e r ( m w ) p o w e r d i s s i p a t i o n ( m w ) 1 0 3 6 0 - 0 2 1 0 0 f i g u r e 2 2 . p o w e r d i s s i p a t i o n v s . o u t p u t p o w e r , p v d d = 3 . 0 v , r l = 3 2  1 0 0 1 0 1 1 0 1 0 0 1 k l o a d r e s i s t a n c e ( ? ) o u t p u t p o w e r p e r c h a n n e l ( m w ) 1 0 3 6 0 - 0 2 4 p v d d = 2 . 5 v p v d d = 3 . 3 v f i g u r e 2 3 . m a x i m u m o u t p u t p o w e r p e r c h a n n e l v s . l o a d r e s i s t a n c e , f l y i n g c a p a c i t o r = 1 f , t h d + n = 1 % 3 5 0 3 0 0 2 5 0 2 0 0 1 0 0 1 5 0 5 0 0 0 2 0 4 0 6 0 8 0 1 t o t a l o u t p u t p o w e r ( m w ) p o w e r c o n s u m p t i o n ( m w ) 1 0 3 6 0 - 0 2 2 0 0 f i g u r e 2 4 . p o w e r c o n s u m p t i o n v s . o u t p u t p o w e r , p v d d = 3 . 0 v , r l = 1 6  2 5 0 2 0 0 1 5 0 5 0 1 0 0 0 0 2 0 4 0 6 0 8 0 1 t o t a l o u t p u t p o w e r ( m w ) p o w e r d i s s i p a t i o n ( m w ) 1 0 3 6 0 - 0 2 3 0 0 f i g u r e 2 5 . p o w e r d i s s i p a t i o n v s . o u t p u t p o w e r , p v d d = 3 . 0 v , r l = 1 6  1 . 7 2 1 . 7 0 1 . 6 8 1 . 6 6 1 . 6 4 1 . 6 2 1 . 6 0 2 . 5 2 . 7 2 . 9 3 . 1 3 . 3 3 . 5 s u p p l y v o l t a g e ( v ) q u i e s c e n t c u r r e n t ( m a ) 1 0 3 6 0 - 0 1 9 r l = 3 2 ? r l = 1 6 ? f i g u r e 2 6 . q u i e s c e n t c u r r e n t v s . s u p p l y v o l t a g e
d a t a s h e e t s s m 2 9 3 2 r e v . 0 | p a g e 1 1 o f 1 6 1 0 3 6 0 - 0 2 6 5 0 0 m v / 1 . 0 0 v / 2 0 . 0 0 m s 5 . 0 0 m s 1 . 7 5 v t r i g ? d ? 1 2 3 4 2 t 1 , 2 1 0 3 6 0 - 0 2 7 1 . 0 0 v / 1 . 0 0 v / 1 . 5 2 0 m s 2 . 0 0 0 m s 1 . 0 1 v t r i g ? d ? 1 2 3 4 1 t 1 , 2 f i g u r e 2 7 . s t a r t - u p w a v e f o r m v s . t i m e f i g u r e 2 9 . s h u t d o w n w a v e f o r m v s . t i m e 0 ? 2 0 ? 4 0 ? 6 0 ? 8 0 ? 1 0 0 ? 1 2 0 ? 1 4 0 ? 1 6 0 ? 1 8 0 1 0 1 0 0 1 k 1 0 k 1 0 0 k f r e q u e n c y ( h z ) o u t p u t ( d b v ) 1 0 3 6 0 - 0 2 8 f i g u r e 2 8 . o u t p u t s p e c t r u m v s . f r e q u e n c y , p v d d = 3 . 0 v , r l = 3 2 
s s m 2 9 3 2 d a t a s h e e t r e v . 0 | p a g e 1 2 o f 1 6 t h e o r y o f o p e r a t i o n t h e s s m 2 9 3 2 p r o v i d e s a h i g h e f f i c i e n c y c l a s s - g s t e r e o h e a d - p h o n e o u t p u t t h a t i s t r u e g r o u n d - r e f e r e n c e d ; t h e r e f o r e , n o e x t e r n a l c o u p l i n g c a p a c i t o r s a r e r e q u i r e d f o r c o n n e c t i o n t o t h e h e a d p h o n e s . t h e h e a d p h o n e s c a n b e c o n n e c t e d d i r e c t l y t o t h e h e a d p h o n e o u t p u t p i n s , o u t l ( b a l l a 3 ) a n d o u t r ( b a l l d 3 ) . t h e h e a d p h o n e a m p l i f i e r u s e s t h e s u p p l y p r o v i d e d a t p v d d ( b a l l a 2 ) . t h i s s u p p l y v o l t a g e m u s t b e d e c o u p l e d w i t h a 1 f e l e c t r o l y t i c c a p a c i t o r , a l o n g w i t h a 1 0 0 n f c e r a m i c x 7 r c a p a c i t o r . t h e h e a d p h o n e a m p l i f i e r u s e s c l a s s - g a r c h i t e c t u r e a n d g e n e r a t e s t h e r e q u i r e d p o w e r s u p p l i e s w i t h a b u i l t - i n c h a r g e p u m p t h a t u s e s a f l y i n g c a p a c i t o r c o n n e c t e d a c r o s s c f 1 ( b a l l b 2 ) a n d c f 2 ( b a l l c 1 ) . t h e c h a r g e p u m p s w i t c h i n g f r e q u e n c y i s a p p r o x i m a t e l y 5 4 k h z i n t h e i d l e s t a t e w i t h n o i n p u t s i g n a l d e t e c t e d a n d 5 5 0 k h z w h e n a s i g n a l i s p r e s e n t . t h e g e n e r a t e d s u p p l y v o l t a g e s a r e a v a i l a b l e a t c p v d d ( b a l l b 3 , p o s i t i v e r a i l ) a n d c p v s s ( b a l l c 2 , n e g a t i v e r a i l ) . t h e s u p p l y v o l t a g e o f t h e h e a d p h o n e a m p l i f i e r d e p e n d s o n t h e i n p u t s i g n a l t o t h e a m p l i f i e r . f o r l o w e r i n p u t s i g n a l l e v e l s , t h e p o s i t i v e a n d n e g a t i v e r a i l s a r e l o w e r e d , t y p i c a l l y t o p v d d / 2 . a s t h e s i g n a l l e v e l i n c r e a s e s , c p v d d a n d c p v s s a r e r a i s e d t o 2 . 2 v . t h i s r a i l s w i t c h i n g a l l o w s t h e a m p l i f i e r t o a c h i e v e h i g h e r e f f i c i e n c y . i n m o s t t y p i c a l u s a g e c o n d i t i o n s , t h e a m p l i f i e r w o r k s o n t h e l o w e r c p v d d a n d c p v s s v o l t a g e s ( p v d d / 2 ) , t h e r e b y c o n s u m i n g l e s s p o w e r . i n a d d i t i o n , b e c a u s e t h e a m p l i f i e r g e n e r a t e s t h e p o s i t i v e a n d n e g a t i v e r a i l s , t h e o u t p u t a m p l i f i e r i s t r u e g r o u n d - r e f e r e n c e d , t h e r e b y e l i m i n a t i n g t h e n e e d f o r l a r g e c o u p l i n g c a p a c i t o r s t o d r i v e t h e l o a d . f o r b e s t a u d i o p e r f o r m a n c e , i t i s r e c o m m e n d e d t h a t 2 . 2 f , x 7 r c e r a m i c d e c o u p l i n g c a p a c i t o r s b e u s e d f o r c p v d d a n d c p v s s . t h e s e c a p a c i t o r s s e r v e a s a r e s e r v o i r f o r t h e h e a d p h o n e a m p l i f i e r . t h e h e a d p h o n e a m p l i f i e r h a s b u i l t - i n s h o r t - c i r c u i t p r o t e c t i o n a n d , t h e r e f o r e , s h u t s d o w n i n t h e e v e n t o f a s h o r t c i r c u i t o n t h e h e a d p h o n e o u t p u t s . t h e a m p l i f i e r i s d e s i g n e d t o d r i v e h e a d p h o n e s w i t h a m i n i - m u m i m p e d a n c e o f 1 6  . c a p a c i t i v e l o a d s o f u p t o 1 5 0 p f a r e s u p p o r t e d . a m p l i f i e r g a i n t h e s s m 2 9 3 2 a m p l i f i e r g a i n c a n b e s e t t o e i t h e r 0 d b o r 6 d b b y a p p l y i n g t h e a p p r o p r i a t e l o g i c l e v e l t o t h e g a i n p i n ( s e e t a b l e 6 ) . t a b l e 6 . a m p l i f i e r g a i n a n d g a i n p i n l o g i c l e v e l s a m p l i f i e r g a i n g a i n p i n l o g i c l e v e l 0 d b l o w (  0 . 5 v ) 6 d b h i g h (  1 . 2 v ) a m p l i f i e r s h u t d o w n s h u t d o w n o f t h e s s m 2 9 3 2 a m p l i f i e r i s c o n t r o l l e d b y t h e s d p i n . i f a l o g i c l o w i s a p p l i e d t o t h i s p i n , t h e a m p l i f i e r b e c o m e s i n a c t i v e a n d d r a w s o n l y m i n i m a l c u r r e n t f r o m t h e s u p p l y . t a b l e 7 . a m p l i f i e r s h u t d o w n a m p l i f i e r s t a t e s d p i n l o g i c l e v e l s h u t d o w n l o w (  0 . 5 v ) p o w e r - o n h i g h (  1 . 2 v ) h i g h o u t p u t i m p e d a n c e t h e s s m 2 9 3 2 h a s a h i - z c o n t r o l p i n t h a t m u t e s t h e a m p l i f i e r a n d s e t s t h e o u t p u t t o a h i g h i m p e d a n c e . i f b o t h h i - z a n d s d a r e s e t h i g h , t h e a m p l i f i e r r e m a i n s i n a h i g h i m p e d a n c e s t a t e . t h i s f e a t u r e a l l o w s t h e h e a d p h o n e o u t p u t j a c k t o b e s h a r e d f o r o t h e r f u n c t i o n s s u c h a s v i d e o o u t p u t o r d a t a t r a n s m i s s i o n . g r o u n d s e n s e s g n d ( b a l l c 3 ) i s p r o v i d e d f o r s e n s i n g t h e d c p o t e n t i a l a t t h e h e a d p h o n e j a c k . i t i s r e c o m m e n d e d t h a t s g n d b e c o n n e c t e d d i r e c t l y t o t h e g r o u n d p i n o f t h e h e a d p h o n e j a c k t o e n s u r e t h e l o w e s t d c o f f s e t a t t h e a m p l i f i e r o u t p u t a n d t o e l i m i n a t e p o p - a n d - c l i c k n o i s e s w h e n t h e a m p l i f i e r i s t u r n e d o n o r o f f . i n a d d i t i o n , c o n n e c t i n g t h e s g n d b a l l d i r e c t l y t o t h e g r o u n d p i n o f t h e h e a d - p h o n e j a c k h e l p s t o r e d u c e c r o s s t a l k b e t w e e n t h e l e f t a n d r i g h t c h a n n e l o u t p u t s . a d c p a t h b e t w e e n t h e s g n d p i n a n d t h e s y s t e m g r o u n d m u s t a l s o b e p r o v i d e d . l a y o u t c a r e m u s t b e t a k e n t o l a y o u t p c b t r a c e s a n d w i r e s p r o p e r l y b e t w e e n t h e a m p l i f i e r , l o a d , a n d p o w e r s u p p l y . a g o o d p r a c t i c e i s t o u s e s h o r t , w i d e p c b t r a c k s t o d e c r e a s e v o l t a g e d r o p s a n d m i n i m i z e i n d u c t a n c e . e n s u r e t h a t t r a c k w i d t h s a r e a t l e a s t 2 0 0 m i l p e r i n c h o f t r a c k l e n g t h f o r l o w e s t d c r , a n d u s e a t l e a s t 1 o z o r 2 o z c o p p e r t h i c k n e s s t o m i n i m i z e r e s i s t a n c e . a p o o r l a y o u t i n c r e a s e s v o l t a g e d r o p s , c o n s e q u e n t l y a f f e c t i n g e f f i c i e n c y . u s e l a r g e t r a c e s f o r t h e p o w e r s u p p l y i n p u t s a n d a m p l i f i e r o u t p u t s t o m i n i m i z e l o s s e s d u e t o p a r a s i t i c t r a c e r e s i s t a n c e . p r o p e r g r o u n d i n g g u i d e l i n e s h e l p t o i m p r o v e a u d i o p e r f o r - m a n c e , m i n i m i z e c r o s s t a l k b e t w e e n c h a n n e l s , a n d p r e v e n t s w i t c h i n g n o i s e f r o m c o u p l i n g i n t o t h e a u d i o s i g n a l . t h e p c b t r a c e s t h a t c o n n e c t t h e o u t p u t p i n s t o t h e l o a d , a s w e l l a s t h e p c b t r a c e s t o t h e s u p p l y p i n s , s h o u l d b e a s w i d e a s p o s s i b l e t o m a i n t a i n t h e m i n i m u m t r a c e r e s i s t a n c e s . i t i s a l s o r e c o m m e n d e d t h a t a l a r g e g r o u n d p l a n e b e u s e d f o r m i n i m u m i m p e d a n c e s . t h e s g n d p i n s h o u l d b e c o n n e c t e d d i r e c t l y t o t h e g r o u n d p i n o f t h e h e a d p h o n e j a c k .
d a t a s h e e t s s m 2 9 3 2 r e v . 0 | p a g e 1 3 o f 1 6 i n a d d i t i o n , g o o d p c b l a y o u t i s o l a t e s c r i t i c a l a n a l o g p a t h s f r o m s o u r c e s o f h i g h i n t e r f e r e n c e . h i g h f r e q u e n c y c i r c u i t s ( a n a l o g a n d d i g i t a l ) s h o u l d b e s e p a r a t e d f r o m l o w f r e q u e n c y c i r c u i t s . p r o p e r l y d e s i g n e d m u l t i l a y e r p c b s c a n r e d u c e e m i e m i s s i o n s a n d i n c r e a s e i m m u n i t y t o t h e r f f i e l d b y a f a c t o r o f 1 0 o r m o r e c o m p a r e d w i t h d o u b l e - s i d e d b o a r d s . a m u l t i l a y e r b o a r d a l l o w s a c o m p l e t e l a y e r t o b e u s e d f o r t h e g r o u n d p l a n e , w h e r e a s t h e g r o u n d p l a n e s i d e o f a d o u b l e - s i d e d b o a r d i s o f t e n d i s r u p t e d b y s i g n a l c r o s s o v e r . i f t h e s y s t e m h a s s e p a r a t e a n a l o g a n d d i g i t a l g r o u n d a n d p o w e r p l a n e s , t h e a n a l o g g r o u n d p l a n e s h o u l d b e d i r e c t l y b e n e a t h t h e a n a l o g p o w e r p l a n e , a n d , s i m i l a r l y , t h e d i g i t a l g r o u n d p l a n e s h o u l d b e d i r e c t l y b e n e a t h t h e d i g i t a l p o w e r p l a n e . t h e r e s h o u l d b e n o o v e r l a p b e t w e e n a n a l o g a n d d i g i t a l g r o u n d p l a n e s o r b e t w e e n a n a l o g a n d d i g i t a l p o w e r p l a n e s .
s s m 2 9 3 2 d a t a s h e e t r e v . 0 | p a g e 1 4 o f 1 6 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 1 0 3 6 0 - 0 3 1 p o r g a i n p o w e r m a n a g e m e n t p h o n e j a c k p g a p g a o u t l s g n d o u t r i n l + 1 f 1 f 2 . 2 f 2 . 2 f i n l ? i n r + i n r ? p g n d p v d d c p v s s c p v d d c f 2 c f 1 g a i n h i - z s d 1 0 0 n f 0 . 1 f 0 . 1 f 0 . 1 f 0 . 1 f p o p / c l i c k c u r r e n t l i m i t s s m 2 9 3 2 f i g u r e 3 0 . a p p l i c a t i o n c i r c u i t ( d i f f e r e n t i a l i n p u t c o n f i g u r a t i o n )
d a t a s h e e t s s m 2 9 3 2 r e v . 0 | p a g e 1 5 o f 1 6 o u t l i n e d i m e n s i o n s 0 2 - 0 3 - 2 0 1 2 - a a b c d 0 . 5 6 0 0 . 5 0 0 0 . 4 4 0 s i d e v i e w 0 . 2 3 0 0 . 2 0 0 0 . 1 7 0 0 . 3 0 0 0 . 2 6 0 0 . 2 2 0 c o p l a n a r i t y 0 . 0 5 s e a t i n g p l a n e 1 2 3 4 b o t t o m v i e w ( b a l l s i d e u p ) t o p v i e w ( b a l l s i d e d o w n ) b a l l a 1 i d e n t i f i e r 0 . 4 0 r e f 1 . 2 0 r e f 1 . 6 8 0 1 . 6 4 0 s q 1 . 6 0 0 f i g u r e 3 1 . 1 6 - b a l l w a f e r l e v e l c h i p s c a l e p a c k a g e [ w l c s p ] 1 . 6 m m 1 . 6 m m b o d y ( c b - 1 6 - 1 1 ) d i m e n s i o n s s h o w n i n m i l l i m e t e r s o r d e r i n g g u i d e m o d e l 1 t e m p e r a t u r e r a n g e p a c k a g e d e s c r i p t i o n p a c k a g e o p t i o n s s m 2 9 3 2 a c b z - r l ? 4 0 c t o + 8 5 c 1 6 - b a l l w a f e r l e v e l c h i p s c a l e p a c k a g e [ w l c s p ] c b - 1 6 - 1 1 s s m 2 9 3 2 a c b z - r 7 ? 4 0 c t o + 8 5 c 1 6 - b a l l w a f e r l e v e l c h i p s c a l e p a c k a g e [ w l c s p ] c b - 1 6 - 1 1 e v a l - s s m 2 9 3 2 z e v a l u a t i o n b o a r d 1 z = r o h s c o m p l i a n t p a r t .
s s m 2 9 3 2 d a t a s h e e t r e v . 0 | p a g e 1 6 o f 1 6 n o t e s ? 2 0 1 2 a n a l o g d e v i c e s , i n c . a l l r i g h t s r e s e r v e d . t r a d e m a r k s a n d r e g i s t e r e d t r a d e m a r k s a r e t h e p r o p e r t y o f t h e i r r e s p e c t i v e o w n e r s . d 1 0 3 6 0 - 0 - 2 / 1 2 ( 0 )


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