Pcm 30dd02

8/10/2019 Pcm 30dd02

1/41

F E A T U R E S

A P P L I C A T I O N S

D E S C R I P T I O N

Lch In

Rch In Analog Front-End

Delta-Sigma

Modulator

Digital

DecimationFilter

Serial Interface

and

Mode Control

Digital Out

Mode Control

System Clock

B0006-01

Digital In

Digital

Interpolation

Filter

Lch Out

Rch Out

Low-Pass Filter

and

Output Buffer

Multilevel

Delta-Sigma

Modulator

*

* PCM3002 Only

P C M 3 0 0 2

P C M 3 0 0 3

S B A S 0 7 9 A O C T O B E R 2 0 0 0 R E V I S E D O C T O B E R 2 0 0 4

1 6 / 2 0 - B I T S I N G L E - E N D E D A N A L O G I N P U T / O U T P U T S T E R E O A U D I O C O D E C S

S i n g l e 3 - V P o w e r S u p p l y

M o n o l i t h i c 2 0 - B i t A D C a n d D A C S m a l l P a c k a g e : S S O P - 2 4 1 6 / 2 0 - B i t I n p u t / O u t p u t D a t a

S o f t w a r e C o n t r o l : P C M 3 0 0 2 D V C A p p l i c a t i o n s

H a r d w a r e C o n t r o l : P C M 3 0 0 3 D S C A p p l i c a t i o n s

S t e r e o A D C : P o r t a b l e / M o b i l e A u d i o A p p l i c a t i o n s

S i n g l e - E n d e d V o l t a g e I n p u t

A n t i a l i a s i n g F i l t e r

6 4 O v e r s a m p l i n g T h e P C M 3 0 0 2 a n d P C M 3 0 0 3 a r e l o w - c o s t ,

H i g h P e r f o r m a n c e s i n g l e - c h i p s t e r e o a u d i o c o d e c s ( a n a l o g - t o - d i g i t a l a n d d i g i t a l - t o - a n a l o g c o n v e r t e r s ) w i t h s i n g l e - e n d e d a n a l o g T H D + N : 8 6 d B v o l t a g e i n p u t a n d o u t p u t .

S N R : 9 0 d B

T h e A D C s a n d D A C s e m p l o y d e l t a - s i g m a m o d u l a t i o n D y n a m i c R a n g e : 9 0 d B w i t h 6 4 - t i m e s o v e r s a m p l i n g . T h e A D C s i n c l u d e a

S t e r e o D A C : d i g i t a l d e c i m a t i o n f i l t e r , a n d t h e D A C s i n c l u d e a n

S i n g l e - E n d e d V o l t a g e O u t p u t 8 - t i m e s o v e r s a m p l i n g d i g i t a l i n t e r p o l a t i o n f i l t e r . T h e D A C s a l s o i n c l u d e d i g i t a l a t t e n u a t i o n , d e - e m p h a s i s , A n a l o g L o w - P a s s F i l t e ri n f i n i t e z e r o d e t e c t i o n , a n d s o f t m u t e t o f o r m a

6 4 O v e r s a m p l i n g c o m p l e t e s u b s y s t e m . T h e P C M 3 0 0 2 a n d P C M 3 0 0 3

H i g h P e r f o r m a n c e o p e r a t e w i t h l e f t - j u s t i f i e d ( A D C ) a n d r i g h t - j u s t i f i e d ( D A C ) f o r m a t s , w h i l e t h e P C M 3 0 0 2 a l s o s u p p o r t s T H D + N : 8 6 d B o t h e r f o r m a t s , i n c l u d i n g t h e I 2 S d a t a f o r m a t . S N R : 9 4 d B

T h e P C M 3 0 0 2 a n d P C M 3 0 0 3 p r o v i d e a p o w e r - d o w n D y n a m i c R a n g e : 9 4 d B m o d e t h a t o p e r a t e s o n t h e A D C s a n d D A C s i n d e p e n -

S p e c i a l F e a t u r e s ( P C M 3 0 0 2 , P C M 3 0 0 3 ) d e n t l y .

D i g i t a l D e - E m p h a s i s : 3 2 k H z , 4 4 . 1 k H z , T h e P C M 3 0 0 2 a n d P C M 3 0 0 3 a r e f a b r i c a t e d u s i n g a 4 8 k H z h i g h l y a d v a n c e d C M O S p r o c e s s , a n d a r e a v a i l a b l e i n

P o w e r D o w n : A D C / D A C I n d e p e n d e n t a 2 4 - p i n S S O P p a c k a g e . T h e P C M 3 0 0 2 a n d S p e c i a l F e a t u r e s ( P C M 3 0 0 2 ) P C M 3 0 0 3 a r e s u i t a b l e f o r a w i d e v a r i e t y o f

c o s t - s e n s i t i v e c o n s u m e r a p p l i c a t i o n s w h e r e g o o d p e r - D i g i t a l A t t e n u a t i o n ( 2 5 6 S t e p s )f o r m a n c e i s r e q u i r e d .

S o f t M u t eT h e P C M 3 0 0 2 p r o g r a m m a b l e f u n c t i o n s a r e c o n t r o l l e d D i g i t a l L o o p b a c kb y s o f t w a r e . T h e P C M 3 0 0 3 f u n c t i o n s , w h i c h a r e

F o u r A l t e r n a t i v e A u d i o D a t a F o r m a t s c o n t r o l l e d b y h a r d w a r e , i n c l u d e d e - e m p h a s i s , S a m p l i n g R a t e : 4 k H z t o 4 8 k H z p o w e r - d o w n , a n d a u d i o d a t a f o r m a t s e l e c t i o n s .

P l e a s e b e a w a r e t h a t a n i m p o r t a n t n o t i c e c o n c e r n i n g a v a i l a b i l i t y , s t a n d a r d w a r r a n t y , a n d u s e i n c r i t i c a l a p p l i c a t i o n s o f T e x a s I n s t r u m e n t s s e m i c o n d u c t o r p r o d u c t s a n d d i s c l a i m e r s t h e r e t o a p p e a r s a t t h e e n d o f t h i s d a t a s h e e t .

S y s t e m T w o , A u d i o P r e c i s i o n a r e t r a d e m a r k s o f A u d i o P r e c i s i o n , I n c . A l l o t h e r 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 .

P R O D U C T I O N D A T A i n f o r m a t i o n i s c u r r e n t a s o f p u b l i c a t i o n d a t e . C o p y r i g h t 2 0 0 0 2 0 0 4 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d P r o d u c t s c o n f o r m t o s p e c i f i c a t i o n s p e r t h e t e r m s o f t h e T e x a s I n s t r u m e n t s s t a n d a r d w a r r a n t y . P r o d u c t i o n p r o c e s s i n g d o e s n o t n e c e s s a r i l y i n c l u d e t e s t i n g o f a l l p a r a m e t e r s .

8/10/2019 Pcm 30dd02

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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

P C M 3 0 0 2

P C M 3 0 0 3


T h i s i n t e g r a t e d c i r c u i t c a n b e d a m a g e d b y E S D . T e x a s I n s t r u m e n t s r e c o m m e n d s t h a t a l l i n t e g r a t e d c i r c u i t s b e h a n d l e d w i t h a p p r o p r i a t e p r e c a u t i o n s . F a i l u r e t o o b s e r v e p r o p e r h a n d l i n g a n d i n s t a l l a t i o n p r o c e d u r e s c a n c a u s e d a m a g e .

E S D d a m a g e c a n r a n g e f r o m s u b t l e p e r f o r m a n c e d e g r a d a t i o n t o c o m p l e t e d e v i c e f a i l u r e . P r e c i s i o n i n t e g r a t e d c i r c u i t s m a y b e m o r e s u s c e p t i b l e t o d a m a g e b e c a u s e v e r y s m a l l p a r a m e t r i c c h a n g e s c o u l d c a u s e t h e d e v i c e n o t t o m e e t i t s p u b l i s h e d s p e c i f i c a t i o n s .

A l l s p e c i f i c a t i o n s a t T A = 2 5 C , VD D = VC C = 3 V , f S = 4 4 . 1 k H z , S Y S C L K = 3 8 4 f S , a n d 1 6 - b i t d a t a , u n l e s s o t h e r w i s e n o t e d

P C M 3 0 0 2 E / 3 0 0 3 E P A R A M E T E R C O N D I T I O N S

M I N T Y P M A X U N I T S

D I G I T A L I N P U T / O U T P U T

I n p u t L o g i c

V I H ( 1 ) ( 2 ) ( 3 ) 0 . 7 V D D

I n p u t l o g i c l e v e l V D C V I L

( 1 ) ( 2 ) ( 3 ) 0 . 3 V D D

II N ( 2 )

1I n p u t l o g i c c u r r e n t AII N

( 1 ) ( 3 ) 1 0 0

O u t p u t L o g i c

V O H ( 4 ) IO U T = 1 m A V D D 0 . 3

V O L ( 4 ) O u t p u t l o g i c l e v e l I O U T = 1 m A 0 . 3 V D C

V O L ( 5 ) IO U T = 1 m A 0 . 3

C L O C K F R E Q U E N C Y

fs S a m p l i n g f r e q u e n c y 4 ( 6 ) 4 4 . 1 4 8 k H z

2 5 6 f S 1 . 0 2 4 1 1 . 2 8 9 6 1 2 . 2 8 8

S y s t e m c l o c k f r e q u e n c y 3 8 4 f S 1 . 5 3 6 1 6 . 9 3 4 4 1 8 . 4 3 2 M H z

5 1 2 f S 2 . 0 4 8 2 2 . 5 7 9 2 2 4 . 5 7 6

A D C C H A R A C T E R I S T I C S

R e s o l u t i o n 2 0 B i t s

D C A c c u r a c y

G a i n m i s m a t c h , c h a n n e l - 1 3 % o f F S R t o - c h a n n e l

G a i n e r r o r 2 5 % o f F S R

G a i n d r i f t 2 0 p p m o f F S R / C

B i p o l a r z e r o e r r o r H i g h - p a s s f i l t e r b y p a s s e d ( 7 ) 1 . 7 % o f F S R

B i p o l a r z e r o d r i f t H i g h - p a s s f i l t e r b y p a s s e d ( 7 ) 2 0 p p m o f F S R / C

D y n a m i c P e r f o r m a n c e ( 8 )

V I N = 0 . 5 d B 8 6 8 0 T H D + N d B

V I N = 6 0 d B 2 8

D y n a m i c r a n g e A - w e i g h t e d 8 6 9 0 d B

S i g n a l - t o - n o i s e r a t i o A - w e i g h t e d 8 6 9 0 d B

C h a n n e l s e p a r a t i o n 8 4 8 8 d B

( 1 ) P i n s 7 , 8 , 1 7 a n d 1 8 : R S T , M L , M D , a n d M C f o r t h e P C M 3 0 0 2 ; P D A D , P D D A , D E M 1 , a n d D E M 0 f o r P C M 3 0 0 3 ( S c h m i t t - t r i g g e r i n p u t w i t h 1 0 0 - k t y p i c a l i n t e r n a l p u l l d o w n r e s i s t o r )

( 2 ) P i n s 9 , 1 0 , 1 1 , 1 5 : S Y S C L K , L R C I N , B C K I N , D I N ( S c h m i t t - t r i g g e r i n p u t ) ( 3 ) P i n 1 6 : 2 0 B I T f o r P C M 3 0 0 3 ( S c h m i t t - t r i g g e r i n p u t , 1 0 0 - k t y p i c a l i n t e r n a l p u l l d o w n r e s i s t o r ) ( 4 ) P i n 1 2 : D O U T ( 5 ) P i n 1 6 : Z F L G f o r P C M 3 0 0 2 ( o p e n - d r a i n o u t p u t ) ( 6 ) S e e A p p l i c a t i o n B u l l e t i n S B A A 0 3 3 f o r i n f o r m a t i o n r e l a t i n g t o o p e r a t i o n a t l o w e r s a m p l i n g f r e q u e n c i e s . ( 7 ) H i g h - p a s s f i l t e r f o r o f f s e t c a n c e l ( 8 ) f I N = 1 k H z , u s i n g t h e S y s t e m T w o a u d i o m e a s u r e m e n t s y s t e m b y A u d i o P r e c i s i o n i n r m s m o d e w i t h 2 0 - k H z L P F , 4 0 0 - H z H P F u s e d

f o r p e r f o r m a n c e c a l c u l a t i o n .

2
http://www-s.ti.com/sc/techlit/sbaa033http://www-s.ti.com/sc/techlit/sbaa033

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P C M 3 0 0 2

P C M 3 0 0 3


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 i n u e d )




D i g i t a l F i l t e r P e r f o r m a n c e

P a s s b a n d 0 . 4 5 4 f S H zS t o p b a n d 0 . 5 8 3 f S H z

P a s s - b a n d r i p p l e 0 . 0 5 d B

S t o p - b a n d a t t e n u a t i o n 6 5 d B

D e l a y t i m e 1 7 . 4 / f S s

H P F f r e q u e n c y r e s p o n s e 3 d B 0 . 0 1 9 f S m H z

A n a l o g I n p u t

V o l t a g e r a n g e 0 . 6 V C C V p - p

C e n t e r v o l t a g e 0 . 5 V C C V D C

I n p u t i m p e d a n c e 3 0 k

A n t i a l i a s i n g f i l t e r f r e q u e n c y 3 d B 1 5 0 k H z r e s p o n s e

D A C C H A R A C T E R I S T I C S

R e s o l u t i o n 2 0 B i t s

D C A c c u r a c y

G a i n m i s m a t c h , c h a n n e l - 1 3 % o f F S R t o - c h a n n e l

G a i n e r r o r 1 5 % o f F S R

G a i n d r i f t 2 0 p p m o f F S R / C

B i p o l a r z e r o e r r o r 2 . 5 % o f F S R

B i p o l a r z e r o d r i f t 2 0 p p m o f F S R / C

D y n a m i c P e r f o r m a n c e ( 9 )

V O U T = 0 d B ( f u l l s c a l e ) 8 6 8 0 T H D + N d B

V O U T = 6 0 d B 3 2

D y n a m i c r a n g e E I A J , A - w e i g h t e d 8 8 9 4 d B

S i g n a l - t o - n o i s e r a t i o E I A J , A - w e i g h t e d 8 8 9 4 d B

C h a n n e l s e p a r a t i o n 8 6 9 1 d B

D i g i t a l F i l t e r P e r f o r m a n c e

P a s s b a n d 0 . 4 4 5 f S H z

S t o p b a n d 0 . 5 5 5 f S H z

P a s s - b a n d r i p p l e 0 . 1 7 d B

S t o p - b a n d a t t e n u a t i o n 3 5 d B

D e l a y t i m e 1 1 . 1 / f S s

A n a l o g O u t p u t

V o l t a g e r a n g e 0 . 6 V C C V p - p

C e n t e r v o l t a g e 0 . 5 V C C V D C

L o a d i m p e d a n c e A C c o u p l i n g 1 0 k

L P F f r e q u e n c y r e s p o n s e f = 2 0 k H z 0 . 1 6 d B

( 9 ) f O U T = 1 k H z , u s i n g t h e S y s t e m T w o a u d i o m e a s u r e m e n t s y s t e m b y A u d i o P r e c i s i o n i n r m s m o d e w i t h 2 0 - k H z L P F , 4 0 0 - H z H P F u s e d f o r p e r f o r m a n c e c a l c u l a t i o n .

3

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A B S O L U T E M A X I M U M R A T I N G S

P C M 3 0 0 2

P C M 3 0 0 3


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 i n u e d )




P O W E R S U P P L Y R E Q U I R E M E N T S

2 5 C t o 8 5 C 2 . 7 3 3 . 6 V D C V C C , V D D S u p p l y v o l t a g e 0 C t o 7 0 C ( 1 0 ) 2 . 4 3 3 . 6 V D C

O p e r a t i o n , V C C = V D D = 3 V 1 8 2 4 m A S u p p l y c u r r e n t

P o w e r d o w n , V C C = V D D = 3 V 5 0 A

O p e r a t i o n , V C C = V D D = 3 V 5 4 7 2 m W

P o w e r d i s s i p a t i o n P o w e r d o w n ( 1 1 ) , V C C = V D D = 1 5 0 W3 V

T E M P E R A T U R E R A N G E

T A O p e r a t i o n 2 5 8 5 C

T s t g S t o r a g e 5 5 1 2 5 C

J A T h e r m a l r e s i s t a n c e 1 0 0 C / W

( 1 0 ) A p p l i e s f o r v o l t a g e s b e t w e e n 2 . 4 V a n d 2 . 7 V f o r 0 C t o 7 0 C a n d 2 5 6 f S / 5 1 2 f S o p e r a t i o n ( 3 8 4 f S n o t a v a i l a b l e ) ( 1 1 ) S Y S C L K , B C K I N , a n d L R C I N a r e s t o p p e d .

P A C K A G E / O R D E R I N G I N F O R M A T I O N

P A C K A G E P A C K A G E P A C K A G E O R D E R I N G T R A N S P O R T P R O D U C T Q U A N T I T Y

T Y P E C O D E M A R K I N G N U M B E R M E D I A

P C M 3 0 0 2 E R a i l s 5 8 P C M 3 0 0 2 E 2 4 - p i n S S O P D B P C M 3 0 0 2 E

P C M 3 0 0 2 E / 2 K T a p e a n d r e e l 2 0 0 0

P C M 3 0 0 3 E R a i l s 5 8 P C M 3 0 0 3 E 2 4 - p i n S S O P D B P C M 3 0 0 3 E

P C M 3 0 0 3 E / 2 K T a p e a n d r e e l 2 0 0 0

S u p p l y v o l t a g e V D D , V C C 1 , V C C 2 0 . 3 V t o 6 . 5 V

S u p p l y v o l t a g e d i f f e r e n c e s 0 . 1 V

G N D v o l t a g e d i f f e r e n c e s 0 . 1 V

D i g i t a l i n p u t v o l t a g e 0 . 3 V t o V D D + 0 . 3 V , < 6 . 5 V

A n a l o g i n p u t v o l t a g e 0 . 3 V t o V C C 1 , V C C 2 + 0 . 3 V , < 6 . 5 V

P o w e r d i s s i p a t i o n 3 0 0 m W

I n p u t c u r r e n t ( a n y p i n s e x c e p t s u p p l i e s ) 1 0 m A

O p e r a t i n g t e m p e r a t u r e 2 5 C t o 8 5 C

S t o r a g e t e m p e r a t u r e 5 5 C t o 1 2 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 2 6 0 C , 5 s

P a c k a g e t e m p e r a t u r e ( I R r e f l o w , p e a k ) 2 3 5 C

4

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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

1

2

3

4

5

6

7

8

9

10

11

12

24

23

22

21

20

19

18

17

16

15

14

13

VCC1

VCC1

VINR

VREF1

VREF2

VINL

RST

ML

SYSCLK

LRCIN

BCKIN

DOUT

VCC2

AGND1

AGND2

VCOM

VOUTR

VOUTL

MC

MD

ZFLG

DIN

VDD

DGND

PCM3002

(TOP VIEW)

P0004-02

1

2

3

4

5

6

7

8

9

10

11

12

24

23

22

21

20

19

18

17

16

15

14

13

VCC1

VCC1

VINR

VREF1

VREF2

VINL

PDAD

PDDA

SYSCLK

LRCIN

BCKIN

DOUT

VCC2

AGND1

AGND2

VCOM

VOUTR

VOUTL

DEM0

DEM1

20BIT

DIN

VDD

DGND

PCM3003

(TOP VIEW)

P C M 3 0 0 2

P C M 3 0 0 3


o v e r o p e r a t i n g f r e e - a i r t e m p e r a t u r e r a n g e

M I N N O M M A X U N I T

A n a l o g s u p p l y v o l t a g e , V C C 1 , V C C 2 2 . 7 3 3 . 6 V

D i g i t a l s u p p l y v o l t a g e , V D D 2 . 7 3 3 . 6 V

A n a l o g i n p u t v o l t a g e , f u l l s c a l e ( 0 d B ) V C C

= 3 V 1 . 8 V p - p

D i g i t a l i n p u t l o g i c f a m i l y C M O S

S y s t e m c l o c k 8 . 1 9 2 2 4 . 5 7 6 M H z D i g i t a l i n p u t c l o c k f r e q u e n c y

S a m p l i n g c l o c k 3 2 4 8 k H z

A n a l o g o u t p u t l o a d r e s i s t a n c e 1 0 k

A n a l o g o u t p u t l o a d c a p a c i t a n c e 3 0 p F

D i g i t a l o u t p u t l o a d c a p a c i t a n c e 1 0 p F

O p e r a t i n g f r e e - a i r t e m p e r a t u r e , T A 2 5 8 5 C

P I N A S S I G N M E N T S P C M 3 0 0 2

N A M E P I N I / O D E S C R I P T I O N

A G N D 1 2 3 A D C a n a l o g g r o u n d

A G N D 2 2 2 D A C a n a l o g g r o u n d

B C K I N 1 1 I B i t c l o c k i n p u t ( 1 )

D G N D 1 3 D i g i t a l g r o u n d

D I N 1 5 I D a t a i n p u t ( 1 )

D O U T 1 2 O D a t a o u t p u t

L R C I N 1 0 I S a m p l e r a t e c l o c k i n p u t ( f s) ( 1 )

M C 1 8 I B i t c l o c k f o r m o d e c o n t r o l ( 1 ) ( 2 )

M D 1 7 I S e r i a l d a t a f o r m o d e c o n t r o l ( 1 ) ( 2 )

M L 8 I S t r o b e p u l s e f o r m o d e c o n t r o l ( 1 ) ( 2 )

R S T 7 I R e s e t , a c t i v e L O W ( 1 ) ( 2 )

S Y S C L K 9 I S y s t e m c l o c k i n p u t ( 1 )

V C C 1 1 , 2 A D C a n a l o g p o w e r s u p p l y

V C C 2 2 4 D A C a n a l o g p o w e r s u p p l y

V C O M 2 1 A D C / D A C c o m m o n

V D D 1 4 D i g i t a l p o w e r s u p p l y

( 1 ) S c h m i t t - t r i g g e r i n p u t ( 2 ) W i t h 1 0 0 - k t y p i c a l i n t e r n a l p u l l d o w n r e s i s t o r

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P C M 3 0 0 2

P C M 3 0 0 3


P I N A S S I G N M E N T S P C M 3 0 0 2 ( c o n t i n u e d )


V I N L 6 I A D C a n a l o g i n p u t , L c h

V I N R 3 I A D C a n a l o g i n p u t , R c h

V O U T L 1 9 O D A C a n a l o g o u t p u t , L c h

V O U T

R 2 0 O D A C a n a l o g o u t p u t , R c h

V R E F 1 4 A D C r e f e r e n c e 1


Z F L G 1 6 O Z e r o f l a g o u t p u t , a c t i v e L O W ( 3 )

( 3 ) O p e n - d r a i n o u t p u t

P I N A S S I G N M E N T S P C M 3 0 0 3


A G N D 1 2 3 A D C a n a l o g g r o u n d

A G N D 2 2 2 D A C a n a l o g g r o u n d

B C K I N 1 1 I B i t c l o c k i n p u t ( 1 )

D E M 0 1 8 I D e - e m p h a s i s c o n t r o l 0 ( 1 ) ( 2 )

D E M 1 1 7 I D e - e m p h a s i s c o n t r o l 1 ( 1 ) ( 2 )

D G N D 1 3 D i g i t a l g r o u n d

D I N 1 5 I D a t a i n p u t ( 1 )

D O U T 1 2 O D a t a o u t p u t

L R C I N 1 0 I S a m p l e r a t e c l o c k i n p u t ( f s) ( 1 )

P D A D 7 I A D C p o w e r d o w n , a c t i v e L O W ( 1 ) ( 2 )

P D D A 8 I D A C p o w e r d o w n , a c t i v e L O W ( 1 ) ( 2 )

S Y S C L K 9 I S y s t e m c l o c k i n p u t ( 1 )

V C C 1 1 , 2 A D C a n a l o g p o w e r s u p p l y

V C C 2 2 4 D A C a n a l o g p o w e r s u p p l y

V C O M 2 1 A D C / D A C c o m m o n

V D D 1 4 D i g i t a l p o w e r s u p p l y

V I N L 6 I A D C a n a l o g i n p u t , L c h

V I N R 3 I A D C a n a l o g i n p u t , R c h

V O U T L 1 9 O D A C a n a l o g o u t p u t , L c h

V O U T R 2 0 O D A C a n a l o g o u t p u t , R c h



2 0 B I T 1 6 I 2 0 - b i t f o r m a t s e l e c t ( 1 ) ( 2 )

( 1 ) S c h m i t t - t r i g g e r i n p u t ( 2 ) W i t h 1 0 0 - k t y p i c a l i n t e r n a l p u l l d o w n r e s i s t o r

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T Y P I C A L P E R F O R M A N C E C U R V E S

A D C S E C T I O N

86

88

90

92

94

25 0 25 50 75 100

TA Free-Air Temperature C

DynamicRangedB

SNR

94

92

90

86

88

SNRSignal-to-NoiseRatiodB

G002

Dynamic Range

0.002

0.004

0.006

0.008

0.010

25 0 25 50 75 100


THD+NT

otalHarm.Dist.+Noiseat0.5dB%

0.5 dB

5

4

3

1

2

60 dB

G001

THD+NTotalHarm.Dist.+Noiseat60dB%

86

88

90

92

94

2.1 2.4 2.7 3.0 3.3 3.6 3.9VCC Supply Voltage V

DynamicRangedB

94

92

90

86

88


G004

Dynamic Range

SNR

0.002

0.004

0.006

0.008

0.010

2.1 2.4 2.7 3.0 3.3 3.6 3.9VCC Supply Voltage V

THD+NTotalHarm.Dist.+Noiseat0.5dB%

5

4

3

1

2


G003

60 dB

0.5 dB

P C M 3 0 0 2

P C M 3 0 0 3


A l l s p e c i f i c a t i o n s a t T A = 2 5 C , VC C = VD D = 3 V , f S = 4 4 . 1 k H z , f S Y S C L K = 3 8 4 f S , a n d f S I G N A L = 1 k H z , u n l e s s o t h e r w i s e n o t e d

T H D + N D Y N A M I C R A N G E a n d S N R v s v s

T E M P E R A T U R E T E M P E R A T U R E

F i g u r e 1 . F i g u r e 2 .


S U P P L Y V O L T A G E S U P P L Y V O L T A G E

F i g u r e 3 . F i g u r e 4 .

N O T E : A l l c h a r a c t e r i s t i c s a t s u p p l y v o l t a g e s f r o m 2 . 4 V t o 2 . 7 V a r e m e a s u r e d a t S Y S C L K = 2 5 6 f S .

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86

88

90

92

94

DynamicRangedB

94

92

90

86

88


G006

Dynamic Range

SNR

fS Sampling Frequency kHz

4832 44.10.002

0.004

0.006

0.008

0.010


THD+NTotalHarm.Dist.+Noiseat0.5dB%

5

4

3

1

2

G005

THD

+NTotalHarm.Dist.+Noiseat60dB%

4832 44.1

60 dB

0.5 dB

D A C S E C T I O N

90

92

94

96

98

25 0 25 50 75 100


DynamicRangedB

SNR

98

96

94

90

92


G008

Dynamic Range

0.002

0.004

0.006

0.008

0.010

25 0 25 50 75 100


THD+NTotalHarm.Dist.+NoiseatFS%

FS

4

3

2

0

1

60 dB

G007

THD+NTotalHarm.Dist.+Noiseat60dB

%

P C M 3 0 0 2

P C M 3 0 0 3


T Y P I C A L P E R F O R M A N C E C U R V E S ( c o n t i n u e d )



S A M P L I N G F R E Q U E N C Y S A M P L I N G F R E Q U E N C Y

F i g u r e 5 . F i g u r e 6 .


T E M P E R A T U R E T E M P E R A T U R E

F i g u r e 7 . F i g u r e 8 .

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90

92

94

96

98

2.1 2.4 2.7 3.0 3.3 3.6 3.9

VCC Supply Voltage V

DynamicRangedB

98

96

94

90

92


G010

Dynamic Range

SNR

0.002

0.004

0.006

0.008

0.010

2.1 2.4 2.7 3.0 3.3 3.6 3.9


TH

D+NTotalHarm.Dist.+NoiseatFS%

4

3

2

0

1

THD

+NTotalHarm.Dist.+Noiseat60dB%

G009

60 dB

FS

90

92

94

96

98

DynamicRangedB

98

96

94

90

92


G012

Dynamic

Range

SNR


4832 44.1

256 fS, 512 fS

384 fS

0.002

0.004

0.006

0.008

0.010


THD+NTotalHarm.Dist.+NoiseatFS%

4

3

2

0

1

G011


4832 44.1

384 fS

256 fS, 512 fS

384 fS

256 fS, 512 fSFS

60 dB

P C M 3 0 0 2

P C M 3 0 0 3





S U P P L Y V O L T A G E S U P P L Y V O L T A G E

F i g u r e 9 . F i g u r e 1 0 .

N O T E : A l l c h a r a c t e r i s t i c s a t s u p p l y v o l t a g e s f r o m 2 . 4 V t o 2 . 7 V a r e m e a s u r e d a t S Y S C L K = 2 5 6 f S .


S A M P L I N G F R E Q U E N C Y a n d S Y S T E M C L O C K S A M P L I N G F R E Q U E N C Y a n d S Y S T E M C L O C K

F i g u r e 1 1 . F i g u r e 1 2 .

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O U T P U T S P E C T R U M

A D C s

f Frequency kHz

140

120

100

80

60

40

20

0

0 5 10 15 20 25

AmplitudedB

G013

f Frequency kHz

140

120

100

80

60

40

20

0

0 5 10 15 20 25

AmplitudedB

G015

Signal Level dB

96 84 72 60 48 36 24 12 0

THD+NTotalHarmonicDistortion+Noise%

G017

0.001

0.1

100

0.01

1

10

P C M 3 0 0 2

P C M 3 0 0 3




O U T P U T S P E C T R U M ( 0 . 5 d B , N = 8 1 9 2 ) O U T P U T S P E C T R U M ( 6 0 d B , N = 8 1 9 2 )

F i g u r e 1 3 . F i g u r e 1 4 .

T H D + N v s

S I G N A L L E V E L

F i g u r e 1 5 .

1 0

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D A C s

f Frequency kHz

140

120

100

80

60

40

20

0

0 5 10 15 20 25

AmplitudedB

G014

f Frequency kHz

140

120

100

80

60

40

20

0

0 5 10 15 20 25

AmplitudedB

G016

Signal Level dB

96 84 72 60 48 36 24 12 0

THD+NTotalHarmonicDistortion+Noise%

G018

0.001

0.1

100

0.01

1

10

P C M 3 0 0 2

P C M 3 0 0 3




O U T P U T S P E C T R U M ( 0 d B , N = 8 1 9 2 ) O U T P U T S P E C T R U M ( 6 0 d B , N = 8 1 9 2 )

F i g u r e 1 6 . F i g u r e 1 7 .

T H D + N v s

S I G N A L L E V E L

F i g u r e 1 8 .

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T Y P I C A L P E R F O R M A N C E C U R V E S

S U P P L Y C U R R E N T


0

5

10

15

20

25

2.1 2.4 2.7 3.0 3.3 3.6 3.9

ICC+IDDmA

ADC and DAC

ADC

DAC

Power Down and Off

2.5

2.0

1.5

0

1.0

ICC+IDD:PowerDownandOffmA

G020

0.5


0

5

10

15

20

25

50 25 0 25 50 75 100

ICC+IDDmA

ADC and DAC

ADC

DAC

Power Down and Off

2.5

2.0

1.5

0

1.0

ICC+IDD:PowerDownandOffmA

G019

0.5

15

16

17

18

19

20

ICC+IDDmA

ADC and DAC


4832 44.1

G021

512 fS

256 fS

P C M 3 0 0 2

P C M 3 0 0 3


A l l s p e c i f i c a t i o n s a t T A = 2 5 C , VC C = VD D = 3 V , f S = 4 4 . 1 k H z , f S Y S C L K = 3 8 4 f S , D I N = B P Z , a n d V I N = B P Z , u n l e s s o t h e r w i s e

n o t e d

IC C + ID D IC C + ID Dv s v s S U P P L Y V O L T A G E T E M P E R A T U R E

F i g u r e 1 9 . F i g u r e 2 0 .

A l l c h a r a c t e r i s t i c s a t s u p p l y v o l t a g e s f r o m 2 . 4 V t o 2 . 7 V a r e m e a s u r e d a t S Y S C L K = 2 5 6 f S .

IC C + ID D

v sS A M P L I N G F R E Q U E N C Y

F i g u r e 2 1 .

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T Y P I C A L P E R F O R M A N C E C U R V E S O F I N T E R N A L F I L T E R S ( A D C s )

D E C I M A T I O N F I L T E R

Normalized Frequency [fSHz]

200

150

100

50

0

0 8 16 24 32

AmplitudedB

G022


100

80

60

40

20

0

0.0 0.2 0.4 0.6 0.8 1.0

AmplitudedB

G023


1.0

0.8

0.6

0.4

0.2

0.0

0.2

0.0 0.1 0.2 0.3 0.4 0.5

AmplitudedB

G024


10

9

8

7

6

5

4

3

2

1

0

0.45 0.47 0.49 0.51 0.53 0.55

AmplitudedB

G025

4.13 dB at 0.5 fS

P C M 3 0 0 2

P C M 3 0 0 3


A l l s p e c i f i c a t i o n s a t T A = 2 5 C , VC C = VD D = 3 V , f S = 4 4 . 1 k H z , a n d f S Y S C L K = 3 8 4 f S , u n l e s s o t h e r w i s e n o t e d

O V E R A L L C H A R A C T E R I S T I C S S T O P - B A N D A T T E N U A T I O N C H A R A C T E R I S T I C S

F i g u r e 2 2 . F i g u r e 2 3 .

P A S S - B A N D R I P P L E C H A R A C T E R I S T I C S T R A N S I T I O N B A N D C H A R A C T E R I S T I C S

F i g u r e 2 4 . F i g u r e 2 5 .

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H I G H - P A S S F I L T E R

Normalized Frequency [fS/1000 Hz]

1.0

0.8

0.6

0.4

0.2

0.0

0.2

0 1 2 3 4

AmplitudedB

G027Normalized Frequency [fS/1000 Hz]

100

90

80

70

60

50

40

30

20

10

0

0.0 0.1 0.2 0.3 0.4 0.5

AmplitudedB

G026

A N T I A L I A S I N G F I L T E R

50

40

30

20

10

0

f Frequency Hz

AmplitudedB

1 10 100 10M1k 10k

G028

100k 1M1.0

0.8

0.6

0.4

0.2

0.0

0.2

f Frequency Hz

AmplitudedB

1 10 100 100k1k 10k

G029

P C M 3 0 0 2

P C M 3 0 0 3


T Y P I C A L P E R F O R M A N C E C U R V E S O F I N T E R N A L F I L T E R S ( A D C s ) ( c o n t i n u e d )


H I G H - P A S S F I L T E R R E S P O N S E H I G H - P A S S F I L T E R R E S P O N S E

F i g u r e 2 6 . F i g u r e 2 7 .

A N T I A L I A S I N G F I L T E R O V E R A L L A N T I A L I A S I N G F I L T E R P A S S - B A N D 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

F i g u r e 2 8 . F i g u r e 2 9 .

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T Y P I C A L P E R F O R M A N C E C U R V E S O F I N T E R N A L F I L T E R S ( D A C s )

D I G I T A L F I L T E R

100

80

60

40

20

0

LeveldB

f Frequency Hz

75k25k 50k

G030

0 175k100k 125k 150k1.00

0.80

0.60

0.40

0.20

0.00

LeveldB

f Frequency Hz

5k

G031

0 20k10k 15k

D E - E M P H A S I S F I L T E R

12

10

8

6

4

2

0

LeveldB

f Frequency Hz

5k

G032

0 25k10k 15k 20k0.6

0.4

0.2

0.0

0.2

0.4

0.6

ErrordB

f Frequency Hz

3628

G033

0 145127256 10884

P C M 3 0 0 2

P C M 3 0 0 3



O V E R A L L F R E Q U E N C Y C H A R A C T E R I S T I C S P A S S - B A N D R I P P L E C H A R A C T E R I S T I C S ( fS = 4 4 . 1 k H z ) ( f S = 4 4 . 1 k H z )

F i g u r e 3 0 . F i g u r e 3 1 .

D E - E M P H A S I S F R E Q U E N C Y R E S P O N S E ( 3 2 k H z ) D E - E M P H A S I S E R R O R ( 3 2 k H z )

F i g u r e 3 2 . F i g u r e 3 3 .

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12

10

8

6

4

2

0

LeveldB

f Frequency Hz

5k

G034

0 25k10k 15k 20k0.6

0.4

0.2

0.0

0.2

0.4

0.6

ErrordB

f Frequency Hz

4999.8375

G035

0 19999.359999.675 14999.5125

12

10

8

6

4

2

0

LeveldB

f Frequency Hz

5k

G036

0 25k10k 15k 20k0.6

0.4

0.2

0.0

0.2

0.4

0.6

Error

dB

f Frequency Hz

5442

G037

0 2176810884 16326

P C M 3 0 0 2

P C M 3 0 0 3


T Y P I C A L P E R F O R M A N C E C U R V E S O F I N T E R N A L F I L T E R S ( D A C s ) ( c o n t i n u e d )


D E - E M P H A S I S F R E Q U E N C Y R E S P O N S E ( 4 4 . 1 k H z ) D E - E M P H A S I S E R R O R ( 4 4 . 1 k H z )

F i g u r e 3 4 . F i g u r e 3 5 .

D E - E M P H A S I S F R E Q U E N C Y R E S P O N S E ( 4 8 k H z ) D E - E M P H A S I S E R R O R ( 4 8 k H z )

F i g u r e 3 6 . F i g u r e 3 7 .

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A N A L O G L O W - P A S S F I L T E R

100

80

60

40

20

0

20

f Frequency Hz

LeveldB

1 10 100 10M1k 10k

G038

100k 1M0.15

0.10

0.05

0.00

0.05

0.10

0.15

f Frequency Hz

LeveldB

1 10 100 100k1k 10k

G039

P C M 3 0 0 2

P C M 3 0 0 3


T Y P I C A L P E R F O R M A N C E C U R V E S O F I N T E R N A L F I L T E R S ( D A C s ) ( c o n t i n u e d )


I N T E R N A L A N A L O G F I L T E R F R E Q U E N C Y R E S P O N S E I N T E R N A L A N A L O G F I L T E R F R E Q U E N C Y R E S P O N S E ( 1 H z 1 0 M H z ) ( 1 H z 1 0 0 k H z )

F i g u r e 3 8 . F i g u r e 3 9 .

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ML(1)

20BIT(2)

AnalogFront-End

CircuitLRCINVINL

Reference

VREF1

VREF2

VINR

Delta-SigmaModulator

Delta-Sigma

Modulator

Decimationand

High-Pass Filter

Power Supply

Reset and

Power Down

Serial Data

Interface

DOUT

MC(1)/DEM0(2)

VCOM

(+)

()

()

(+)

Mode

Control

Interface

Analog

Front-End

Circuit

Decimation

and

High-Pass Filter

ADC

BCKIN

DIN

Analog

Low-Pass

Filter

VOUTL

Multilevel

Delta-Sigma

Modulator

Interpolation

Filter

8Oversampling

Analog

Low-Pass

Filter

VOUTR

Multilevel

Delta-Sigma

Modulator

Interpolation

Filter

8Oversampling

DAC

MD(1)/DEM1(2)

PDDA(2)

RST(1)/PDAD(2)

Zero Detect(1)Clock

SYSCLK ZFLG(1)AGND2 VCC2 AGND1 VCC1 DGND VDD

B0004-03

P C M 3 0 0 2

P C M 3 0 0 3


B L O C K D I A G R A M

( 1 ) M C , M D , M L , R S T , a n d Z F L G a r e f o r P C M 3 0 0 2 o n l y .

( 2 ) D E M 0 , D E M 1 , 2 0 B I T , P D A D , a n d P D D A a r e f o r P C M 3 0 0 3 o n l y .

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30 kVINR

VCOM

3

21

5

Delta-Sigma

Modulator

(+)

VREF

VREF2

+

1.0 F

4.7 F +

+

()

+

S0011-03

VREF14

4.7 F +

4.7 F +

P C M A U D I O I N T E R F A C E

P C M 3 0 0 2

P C M 3 0 0 3


F i g u r e 4 0 . A n a l o g F r o n t - E n d ( S i n g l e - C h a n n e l )

T h e f o u r - w i r e d i g i t a l a u d i o i n t e r f a c e f o r t h e P C M 3 0 0 2 / 3 0 0 3 c o m p r i s e s L R C I N ( p i n 1 0 ) , B C K I N ( p i n 1 1 ) , D I N ( p i n 1 5 ) , a n d D O U T ( p i n 1 2 ) . T h e P C M 3 0 0 2 c a n b e u s e d w i t h a n y o f t h e f o u r i n p u t / o u t p u t d a t a f o r m a t s ( f o r m a t s 0 3 ) , w h i l e t h e P C M 3 0 0 3 c a n o n l y b e u s e d w i t h s e l e c t e d i n p u t / o u t p u t f o r m a t s ( f o r m a t s 0 1 ) . F o r t h e P C M 3 0 0 2 , t h e s e f o r m a t s a r e s e l e c t e d t h r o u g h p r o g r a m r e g i s t e r 3 i n t h e s o f t w a r e m o d e . F o r t h e P C M 3 0 0 3 , d a t a f o r m a t s a r e s e l e c t e d b y t h e 2 0 B I T i n p u t ( p i n 1 6 ) . F i g u r e 4 1 , F i g u r e 4 2 , a n d F i g u r e 4 3 i l l u s t r a t e a u d i o d a t a i n p u t / o u t p u t f o r m a t s a n d t i m i n g .

T h e P C M 3 0 0 2 / 3 0 0 3 c a n a c c e p t 3 2 , 4 8 , o r 6 4 b i t c l o c k s ( B C K I N ) i n o n e c l o c k o f L R C I N . O n l y t h e 1 6 - b i t d a t a

f o r m a t c a n b e s e l e c t e d w h e n 3 2 - b i t c l o c k s / L R C I N a r e a p p l i e d .

1 9

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DAC: 16-Bit, MSB-First, Right-Justified

FORMAT 0: PCM3002/3003

LRCIN Right-ChannelLeft-Channel

BCKIN

DINMSB LSB MSB LSB

321 16151416 321 161514

BCKIN


DOUT 114 15 16321

MSB LSB MSB LSB

14 15 16321

ADC: 16-Bit, MSB-First, Left-Justified


BCKIN

DIN

MSB LSB MSB LSB

18 19 20321 18 19 2032120

DAC: 20-Bit, MSB-First, Right-Justified

FORMAT 1: PCM3002/3003

BCKIN


DOUT 118 19 20321

MSB LSB MSB LSB

18 19 20321


T0016-04

P C M 3 0 0 2

P C M 3 0 0 3


F i g u r e 4 1 . A u d i o D a t a I n p u t / O u t p u t F o r m a t

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DAC: 20-Bit, MSB-First, Left-Justified

FORMAT 2: PCM3002 Only

BCKIN


DIN 118 19 20321

MSB LSB MSB LSB

18 19 20321


BCKIN


DOUT 118 19 20321

MSB LSB MSB LSB

18 19 20321


BCKIN

DIN

MSB LSB MSB LSB

18 19 20321 18 19 20321

DAC: 20-Bit, MSB-First, I2S

FORMAT 3: PCM3002 Only


BCKIN

DOUT

MSB LSB MSB LSB

18 19 20321 18 19 20321

ADC: 20-Bit, MSB-First, I2S

T0016-05

P C M 3 0 0 2

P C M 3 0 0 3


F i g u r e 4 2 . A u d i o D a t a I n p u t / O u t p u t F o r m a t ( P C M 3 0 0 2 )

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BCKIN

LRCIN

DIN

t(BCH)

t(BCL)

t(LRP)

t(LB)

t(BCY)

0.5 VDD

t(BL)

DOUT

t(BDO) t(LDO)

0.5 VDD

t(DIS) t(DIH)

0.5 VDD

0.5 VDD

T002101

S Y S T E M C L O C K

P C M 3 0 0 2

P C M 3 0 0 3


B C K I N p u l s e c y c l e t i m e t ( B C Y ) 3 0 0 n s ( m i n )

B C K I N p u l s e d u r a t i o n , H I G H t ( B C H ) 1 2 0 n s ( m i n )

B C K I N p u l s e d u r a t i o n , L O W t ( B C L ) 1 2 0 n s ( m i n )

B C K I N r i s i n g e d g e t o L R C I N e d g e t ( B L ) 4 0 n s ( m i n )

L R C I N e d g e t o B C K I N r i s i n g e d g e t ( L B ) 4 0 n s ( m i n )

L R C I N p u l s e d u r a t i o n t ( L R P ) t ( B C Y ) ( m i n )

D I N s e t u p t i m e t ( D I S ) 4 0 n s ( m i n )

D I N h o l d t i m e t ( D I H ) 4 0 n s ( m i n )

D O U T d e l a y t i m e t o B C K I N f a l l i n g e d g e t ( B D O ) 4 0 n s ( m a x )

D O U T d e l a y t i m e t o L R C I N e d g e t ( L D O ) 4 0 n s ( m a x )

R i s i n g t i m e o f a l l s i g n a l s t ( R I S E ) 2 0 n s ( m a x )

F a l l i n g t i m e o f a l l s i g n a l s t ( F A L L ) 2 0 n s ( m a x )

F i g u r e 4 3 . A u d i o D a t a I n p u t / O u t p u t T i m i n g

T h e s y s t e m c l o c k f o r t h e P C M 3 0 0 2 / 3 0 0 3 m u s t b e e i t h e r 2 5 6 f S , 3 8 4 f S , o r 5 1 2 f S , w h e r e f S i s t h e a u d i o s a m p l i n g f r e q u e n c y . T h e s y s t e m c l o c k s h o u l d b e p r o v i d e d a t t h e S Y S C L K i n p u t ( p i n 9 ) .

T h e P C M 3 0 0 2 / 3 0 0 3 a l s o h a s a s y s t e m - c l o c k d e t e c t i o n c i r c u i t t h a t a u t o m a t i c a l l y s e n s e s i f t h e s y s t e m c l o c k i s o p e r a t i n g a t 2 5 6 f S , 3 8 4 f S , o r 5 1 2 f S . W h e n a 3 8 4 - f S o r 5 1 2 - f S s y s t e m c l o c k i s u s e d , t h e c l o c k i s d i v i d e d t o 2 5 6 f Sa u t o m a t i c a l l y . T h e 2 5 6 - f S c l o c k i s u s e d t o o p e r a t e t h e d i g i t a l f i l t e r s a n d t h e d e l t a - s i g m a m o d u l a t o r s .

T a b l e 1 l i s t s t h e r e l a t i o n s h i p o f t y p i c a l s a m p l i n g f r e q u e n c i e s a n d s y s t e m c l o c k f r e q u e n c i e s ; F i g u r e 4 4 i l l u s t r a t e s t h e s y s t e m c l o c k t i m i n g .

T a b l e 1 . S y s t e m C l o c k F r e q u e n c i e s

S A M P L I N G R A T E F R E Q U E N C Y ( k H z ) S Y S T E M C L O C K F R E Q U E N C Y ( M H z )

2 5 6 f s 3 8 4 f s 5 1 2 f s

3 2 8 . 1 9 2 0 1 2 . 2 8 8 0 1 6 . 3 8 4 0

4 4 . 1 1 1 . 2 8 9 6 1 6 . 9 3 4 4 2 2 . 5 7 9 2

4 8 1 2 . 2 8 8 0 1 8 . 4 3 2 0 2 4 . 5 7 6 0

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t(SCKH)

SYSCLK

0.3 VDD

0.7 VDD

t(SCKL)1/256 fS,1/384 fS,

or 1/512 fS

H

L

T0005-05

P O W E R - O N R E S E T

1024 System Clock Periods

Reset Reset Removal

2.4 V2.2 V2.0 V

VDD

Internal Reset

System Clock

T0014-03

3 Clocks Minimum

P C M 3 0 0 2

P C M 3 0 0 3


F i g u r e 4 4 . S y s t e m C l o c k T i m i n g

S y s t e m c l o c k p u l s e d u r a t i o n , H I G H t ( S C K H ) 1 2 n s ( m i n )

S y s t e m c l o c k p u l s e d u r a t i o n , L O W t ( S C K L ) 1 2 n s ( m i n )

B o t h t h e P C M 3 0 0 2 a n d P C M 3 0 0 3 h a v e i n t e r n a l p o w e r - o n r e s e t c i r c u i t r y . P o w e r - o n r e s e t o c c u r s w h e n t h e s y s t e m c l o c k ( S Y S C L K ) i s a c t i v e a n d V D D > 2 . 2 V . F o r t h e P C M 3 0 0 3 , t h e S Y S C L K m u s t c o m p l e t e a m i n i m u m o f t h r e e c o m p l e t e c y c l e s p r i o r t o V D D > 2 . 2 V t o e n s u r e p r o p e r r e s e t o p e r a t i o n . T h e i n i t i a l i z a t i o n s e q u e n c e r e q u i r e s 1 0 2 4 S Y S C L K c y c l e s f o r c o m p l e t i o n , a s s h o w n i n F i g u r e 4 5 . F i g u r e 4 6 s h o w s t h e s t a t e o f t h e D A C a n d A D C o u t p u t s d u r i n g a n d a f t e r t h e r e s e t s e q u e n c e .

F i g u r e 4 5 . I n t e r n a l P o w e r - O n R e s e t T i m i n g

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T0019-02

Reset Ready/OperationInternal Reset

or Power Down

DAC VOUT

t(DACDLY1)(16384/fS)

Reset Removal or Power Down Off

Power Down

ADC DOUT Zero Data Normal Data(1)

VCOM

(0.5 VCC)

t(ADCDLY1)(18432/fS)

Zero Data

GND

E X T E R N A L R E S E T

t(RST)

Reset Removal

1024 System Clock Periods

RST

or

PDAD and PDDA

Internal Reset

System Clock

t(RST)= 40 ns (min)

Reset

T0015-02

RST Pulse Duration

S Y N C H R O N I Z A T I O N W I T H T H E D I G I T A L A U D I O S Y S T E M

P C M 3 0 0 2

P C M 3 0 0 3


( 1 ) T h e H P F t r a n s i e n t r e s p o n s e ( e x p o n e n t i a l l y a t t e n u a t e d s i g n a l f r o m 0 . 2 % d c o f F S R w i t h 2 0 0 - m s t i m e c o n s t a n t )

a p p e a r s i n i t i a l l y .

F i g u r e 4 6 . D A C O u t p u t a n d A D C O u t p u t f o r R e s e t a n d P o w e r D o w n

T h e P C M 3 0 0 2 i n c l u d e s a r e s e t i n p u t , R S T ( p i n 7 ) , w h i l e t h e P C M 3 0 0 3 u s e s b o t h P D A D ( p i n 7 ) a n d P D D A ( p i n 8 ) f o r e x t e r n a l r e s e t c o n t r o l . A s s h o w n i n F i g u r e 4 7 , t h e e x t e r n a l r e s e t s i g n a l m u s t d r i v e R S T o r P D A D a n d P D D A l o w f o r a m i n i m u m o f 4 0 n a n o s e c o n d s w h i l e S Y S C L K i s a c t i v e i n o r d e r t o i n i t i a t e t h e r e s e t s e q u e n c e . I n i t i a l i z a t i o n s t a r t s o n t h e r i s i n g e d g e o f R S T o r P D A D a n d P D D A , a n d r e q u i r e s 1 0 2 4 S Y S C L K c y c l e s f o r c o m p l e t i o n . F i g u r e 4 6 s h o w s t h e s t a t e o f t h e D A C a n d A D C o u t p u t s d u r i n g a n d a f t e r t h e r e s e t s e q u e n c e .

F i g u r e 4 7 . E x t e r n a l F o r c e d - R e s e t T i m i n g

T h e P C M 3 0 0 2 / 3 0 0 3 o p e r a t e s w i t h L R C I N s y n c h r o n i z e d t o t h e s y s t e m c l o c k . T h e P C M 3 0 0 2 / 3 0 0 3 d o e s n o t r e q u i r e a n y s p e c i f i c p h a s e r e l a t i o n s h i p b e t w e e n L R C I N a n d t h e s y s t e m c l o c k , b u t t h e r e m u s t b e s y n c h r o n i z a t i o n o f L R C I N a n d t h e s y s t e m c l o c k . I f t h e s y n c h r o n i z a t i o n b e t w e e n t h e s y s t e m c l o c k a n d L R C I N c h a n g e s m o r e t h a n 6 b i t c l o c k s ( B C K I N ) d u r i n g o n e s a m p l e ( L R C I N ) p e r i o d b e c a u s e o f p h a s e j i t t e r o n L R C I N , i n t e r n a l o p e r a t i o n o f t h e D A C s t o p s w i t h i n 1 / f S , a n d t h e a n a l o g o u t p u t i s f o r c e d t o b i p o l a r z e r o ( 0 . 5 V C C ) u n t i l t h e s y s t e m c l o c k i s r e s y n c h r o n i z e d t o L R C I N f o l l o w e d b y t ( D A C D L Y 2 ) d e l a y t i m e . I n t e r n a l o p e r a t i o n o f t h e A D C a l s o s t o p s w i t h i n 1 / f S ,a n d t h e d i g i t a l o u t p u t c o d e s a r e s e t t o b i p o l a r z e r o u n t i l r e s y n c h r o n i z a t i o n o c c u r s f o l l o w e d b y t ( A D C D L Y 2 ) d e l a y t i m e . I f L R C I N i s s y n c h r o n i z e d w i t h i n 5 o r f e w e r b i t c l o c k s t o t h e s y s t e m c l o c k , o p e r a t i o n i s n o r m a l . F i g u r e 4 8 i l l u s t r a t e s t h e e f f e c t s o n t h e o u t p u t w h e n s y n c h r o n i z a t i o n i s l o s t . B e f o r e t h e o u t p u t s a r e f o r c e d t o b i p o l a r z e r o ( < 1 / f S s e c o n d s ) , t h e o u t p u t s a r e n o t d e f i n e d a n d s o m e n o i s e m a y o c c u r . D u r i n g t h e t r a n s i t i o n s b e t w e e n n o r m a l d a t a a n d u n d e f i n e d s t a t e s , t h e o u t p u t h a s d i s c o n t i n u i t i e s , w h i c h c a u s e o u t p u t n o i s e .

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Within 1/fSt(DACDLY2)

(32/fS)

Normal DataVCOM

(0.5 VCC)

Undefined

DataNormal Data

SynchronousAsynchronousSynchronous

ResynchronizationSynchronization Lost

DAC VOUT

State of Synchronization

T0020-03

Normal Data(1)Zero DataNormal DataADC DOUT

t(ADCDLY2)(32/fS)

Undefined

Data

Z E R O F L A G O U T P U T : P C M 3 0 0 2 O N L Y

O P E R A T I O N A L C O N T R O L

P C M 3 0 0 2

P C M 3 0 0 3


( 1 ) T h e H P F t r a n s i e n t r e s p o n s e ( e x p o n e n t i a l l y a t t e n u a t e d s i g n a l f r o m 0 . 2 % d c o f F S R w i t h 2 0 0 - m s t i m e c o n s t a n t )

a p p e a r s i n i t i a l l y .

F i g u r e 4 8 . D A C O u t p u t a n d A D C O u t p u t f o r L o s s o f S y n c h r o n i z a t i o n

P i n 1 6 i s a n o p e n - d r a i n o u t p u t , u s e d a s t h e i n f i n i t e z e r o d e t e c t i o n f l a g o n t h e P C M 3 0 0 2 o n l y . W h e n i n p u t d a t a i s c o n t i n u o u s l y z e r o f o r 6 5 , 5 3 6 B C K I N c y c l e s , Z F L G i s L O W ; o t h e r w i s e , Z F L G i s i n a h i g h - i m p e d a n c e s t a t e .

T h e P C M 3 0 0 2 c a n b e c o n t r o l l e d i n a s o f t w a r e m o d e w i t h a t h r e e - w i r e s e r i a l i n t e r f a c e o n M C ( p i n 1 8 ) , M D ( p i n 1 7 ) , a n d M L ( p i n 8 ) . T a b l e 2 i n d i c a t e s s e l e c t a b l e f u n c t i o n s , a n d F i g u r e 4 9 a n d F i g u r e 5 0 i l l u s t r a t e t h e c o n t r o l d a t a i n p u t f o r m a t a n d t i m i n g . T h e P C M 3 0 0 3 o n l y a l l o w s f o r c o n t r o l o f 1 6 / 2 0 - b i t d a t a f o r m a t , d i g i t a l d e - e m p h a s i s , a n d p o w e r - d o w n c o n t r o l b y h a r d w a r e p i n s .

T a b l e 2 . S e l e c t a b l e F u n c t i o n s ( O = U s e r S e l e c t a b l e ; X = N o t A v a i l a b l e )

F U N C T I O N A D C / D A C P C M 3 0 0 2 P C M 3 0 0 3

A u d i o d a t a f o r m a t A D C / D A C F o u r s e l e c t a b l e f o r m a t s T w o s e l e c t a b l e f o r m a t s

L R C I N p o l a r i t y A D C / D A C O X

L o o p b a c k c o n t r o l A D C / D A C O X

L e f t - c h a n n e l a t t e n u a t i o n D A C O X

R i g h t - c h a n n e l a t t e n u a t i o n D A C O X

A t t e n u a t i o n c o n t r o l D A C O X

I n f i n i t e z e r o d e t e c t i o n a n d m u t e D A C O X

D A C o u t p u t c o n t r o l D A C O X

S o f t m u t e c o n t r o l D A C O X

D e - e m p h a s i s ( O F F , 3 2 k H z , 4 4 . 1 k H z , 4 8 k H z ) D A C O O

A D C p o w e r - d o w n c o n t r o l A D C O O

D A C p o w e r - d o w n c o n t r o l D A C O O

H i g h - p a s s f i l t e r o p e r a t i o n A D C O X

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B8B15

ML

MC

MD B9B10B11B12B13B14 B0B7 B1B2B3B4B5B6

T0023-01

t(MCH)

ML

LSB

t(MCL)

t(MHH)

t(MCY)

t(MDH)

t(MDS)

MC

MD

t(MLS)

t(MLL)

t(MLH)

T0024-02

0.5 VDD

0.5 VDD

0.5 VDD

P C M 3 0 0 2

P C M 3 0 0 3


F i g u r e 4 9 . C o n t r o l D a t a I n p u t F o r m a t

M C p u l s e c y c l e t i m e t ( M C Y ) 1 0 0 n s ( m i n )

M C p u l s e d u r a t i o n , L O W t ( M C L )

4 0 n s ( m i n )

M C p u l s e d u r a t i o n , H I G H t ( M C H ) 4 0 n s ( m i n )

M D s e t u p t i m e t ( M D S ) 4 0 n s ( m i n )

M D h o l d t i m e t ( M D H ) 4 0 n s ( m i n )

M L l o w - l e v e l t i m e t ( M L L ) 4 0 n s + 1 S Y S C L K ( 1 ) ( m i n )

M L h i g h - l e v e l t i m e t ( M H H ) 4 0 n s + 1 S Y S C L K ( 1 ) ( m i n )

M L s e t u p t i m e ( 3 ) t ( M L S ) 4 0 n s ( m i n )

M L h o l d t i m e ( 2 ) t ( M L H ) 4 0 n s ( m i n )

S Y S C L K : 1 / 2 5 6 f S o r 1 / 3 8 4 f S o r 1 / 5 1 2 f S

( 1 ) S Y S C L K : S y s t e m c l o c k c y c l e

( 2 ) M C r i s i n g e d g e o f L S B t o M L r i s i n g e d g e

( 3 ) M L r i s i n g e d g e t o t h e n e x t M C r i s i n g e d g e

F i g u r e 5 0 . C o n t r o l D a t a I n p u t T i m i n g

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M A P P I N G O F P R O G R A M R E G I S T E R S

S O F T W A R E C O N T R O L ( P C M 3 0 0 2 )

P R O G R A M R E G I S T E R 0

P C M 3 0 0 2

P C M 3 0 0 3


B 1 5 B 1 4 B 1 3 B 1 2 B 1 1 B 1 0 B 9 B 8 B 7 B 6 B 5 B 4 B 3 B 2 B 1 B 0

R E G I S T E R 0 r e s r e s r e s r e s r e s A 1 A 0 L D L A L 7 A L 6 A L 5 A L 4 A L 3 A L 2 A L 1 A L 0

R E G I S T E R 1 r e s r e s r e s r e s r e s A 1 A 0 L D R A R 7 A R 6 A R 5 A R 4 A R 3 A R 2 A R 1 A R 0

R E G I S T E R 2 r e s r e s r e s r e s r e s A 1 A 0 P D A D B Y P S P D D A A T C I Z D O U T D E M 1 D E M 0 M U T

R E G I S T E R 3 r e s r e s r e s r e s r e s A 1 A 0 r e s r e s r e s L O P r e s F M T 1 F M T 0 L R P r e s

N O T E : r e s i n d i c a t e s a r e s e r v e d b i t t h a t s h o u l d b e s e t t o 0 .

T h e P C M 3 0 0 2 s p e c i a l f u n c t i o n s a r e c o n t r o l l e d u s i n g f o u r p r o g r a m r e g i s t e r s w h i c h a r e e a c h 1 6 b i t s l o n g . T h e r e a r e f o u r d i s t i n c t r e g i s t e r s , w i t h b i t s 9 a n d 1 0 d e t e r m i n i n g w h i c h r e g i s t e r i s i n u s e . T a b l e 3 d e s c r i b e s t h e f u n c t i o n s o f t h e f o u r r e g i s t e r s .

T a b l e 3 . F u n c t i o n s o f t h e R e g i s t e r s

R E G I S T E R N A M E R E G I S T E R B I T ( S ) B I T N A M E D E S C R I P T I O N

R e g i s t e r 0 1 5 1 1 r e s R e s e r v e d , s h o u l d b e s e t t o 0

1 0 9 A [ 1 : 0 ] R e g i s t e r a d d r e s s 0 0

8 L D L D A C a t t e n u a t i o n d a t a l o a d c o n t r o l f o r L c h

7 0 A L [ 7 : 0 ] D A C a t t e n u a t i o n d a t a f o r L c h



8 L D R D A C a t t e n u a t i o n d a t a l o a d c o n t r o l f o r R c h

7 0 A R [ 7 : 0 ] D A C a t t e n u a t i o n d a t a f o r R c h



8 P D A D A D C p o w e r - d o w n c o n t r o l

7 B Y P S A D C h i g h - p a s s f i l t e r b y p a s s c o n t r o l 6 P D D A D A C p o w e r - d o w n c o n t r o l

5 A T C D A C a t t e n u a t i o n d a t a m o d e c o n t r o l

4 I Z D D A C i n f i n i t e z e r o d e t e c t i o n a n d m u t e c o n t r o l

3 O U T D A C o u t p u t e n a b l e c o n t r o l

2 1 D E M [ 1 : 0 ] D A C d e - e m p h a s i s c o n t r o l

0 M U T D A C L c h a n d R c h s o f t m u t e c o n t r o l



8 6 r e s R e s e r v e d , s h o u l d b e s e t t o 0

5 L O P A D C / D A C d i g i t a l l o o p b a c k c o n t r o l

4 r e s R e s e r v e d , s h o u l d b e s e t t o 0 3 2 F M T [ 1 : 0 ] A D C / D A C a u d i o d a t a f o r m a t s e l e c t i o n

1 L R P A D C / D A C p o l a r i t y o f L R - c l o c k s e l e c t i o n

0 r e s R e s e r v e d , s h o u l d b e s e t t o 0

r e s : B i t s 1 5 1 1 : R e s e r v e d

T h e s e b i t s a r e r e s e r v e d a n d s h o u l d b e s e t t o 0 .

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P C M 3 0 0 2

P C M 3 0 0 3


A [ 1 : 0 ] B i t s 1 0 , 9 : R e g i s t e r a d d r e s s

T h e s e b i t s d e f i n e t h e a d d r e s s f o r r e g i s t e r 0 :

A 1 A 0 R E G I S T E R

0 0 R e g i s t e r 0

L D L B i t 8 : D A C a t t e n u a t i o n d a t a l o a d c o n t r o l f o r l e f t c h a n n e l

T h i s b i t i s u s e d t o s e t a n a l o g o u t p u t s o f t h e l e f t a n d r i g h t c h a n n e l s s i m u l t a n e o u s l y . T h e o u t p u t l e v e l i s c o n t r o l l e d b y A L [ 7 : 0 ] a t t e n u a t i o n d a t a w h e n t h i s b i t i s s e t t o 1 . W h e n s e t t o 0 , t h e n e w a t t e n u a t i o n d a t a i s i g n o r e d , a n d t h e o u t p u t l e v e l r e m a i n s a t t h e p r e v i o u s a t t e n u a t i o n l e v e l . T h e L D R b i t i n r e g i s t e r 1 h a s t h e e q u i v a l e n t f u n c t i o n a s L D L . W h e n e i t h e r L D L o r L D R i s s e t t o 1 , t h e o u t p u t l e v e l s o f t h e l e f t a n d r i g h t c h a n n e l s a r e c o n t r o l l e d s i m u l t a n e o u s l y .

A L ( 7 : 0 ) B i t s 7 0 : D A C a t t e n u a t i o n d a t a f o r l e f t c h a n n e l

A L 7 a n d A L 0 a r e t h e M S B a n d L S B , r e s p e c t i v e l y . T h e a t t e n u a t i o n l e v e l ( A T T ) i s g i v e n b y :

A T T = 2 0 l o g1 0 ( A L [ 7 : 0 ] / 2 5 6 ) [ d B ] , e x c e p t A L [ 7 : 0 ] = F F h

A L [ 7 : 0 ] A T T E N U A T I O N L E V E L

0 0 h d B ( m u t e )

0 1 h 4 8 . 1 6 d B

: :

F E h 0 . 0 7 d B

F F h 0 d B ( d e f a u l t )






0 1 R e g i s t e r 1

L D R B i t 8 : D A C a t t e n u a t i o n d a t a l o a d c o n t r o l f o r r i g h t c h a n n e l

T h i s b i t i s u s e d t o s e t a n a l o g o u t p u t s o f t h e l e f t a n d r i g h t c h a n n e l s s i m u l t a n e o u s l y . T h e o u t p u t l e v e l i s c o n t r o l l e d b y A R [ 7 : 0 ] a t t e n u a t i o n d a t a w h e n t h i s b i t i s s e t t o 1 . W h e n s e t t o 0 , t h e n e w a t t e n u a t i o n d a t a i s i g n o r e d , a n d t h e o u t p u t l e v e l r e m a i n s a t t h e p r e v i o u s a t t e n u a t i o n l e v e l . T h e L D L b i t i n r e g i s t e r 0 h a s t h e e q u i v a l e n t f u n c t i o n a s L D R . W h e n e i t h e r L D L o r L D R i s s e t t o 1 , t h e o u t p u t l e v e l s o f t h e l e f t a n d r i g h t c h a n n e l s a r e c o n t r o l l e d s i m u l t a n e o u s l y .

A R [ 7 : 0 ] B i t s 7 0 : D A C a t t e n u a t i o n d a t a f o r r i g h t c h a n n e l

A R 7 a n d A R 0 a r e t h e M S B a n d L S B , r e s p e c t i v e l y .

A T T = 2 0 l o g1 0 ( A R [ 7 : 0 ] / 2 5 6 ) [ d B ] , e x c e p t A R [ 7 : 0 ] = F F h

A R [ 7 : 0 ] A T T E N U A T I O N L E V E L

0 0 h d B ( m u t e )

0 1 h 4 8 . 1 6 d B

: :

F E h 0 . 0 7 d B

F F h 0 d B ( d e f a u l t )



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P C M 3 0 0 2

P C M 3 0 0 3





1 0 R e g i s t e r 2

P D A D : B i t 8 : A D C p o w e r - d o w n c o n t r o l

T h i s b i t p l a c e s t h e A D C s e c t i o n i n t h e l o w e s t p o w e r - c o n s u m p t i o n m o d e . T h e A D C o p e r a t i o n i s s t o p p e d b y c u t t i n g t h e s u p p l y c u r r e n t t o t h e A D C s e c t i o n , a n d D O U T i s f i x e d t o z e r o d u r i n g A D C p o w e r - d o w n m o d e e n a b l e . F i g u r e 4 6 i l l u s t r a t e s t h e A D C D O U T r e s p o n s e f o r A D C p o w e r - d o w n O N / O F F . T h i s d o e s n o t a f f e c t t h e D A C o p e r a t i o n .

P D A D D A C P O W E R - D O W N S T A T U S

0 P o w e r - d o w n m o d e d i s a b l e d ( d e f a u l t )

1 P o w e r - d o w n m o d e e n a b l e d

B Y P S : B i t 7 : A D C h i g h - p a s s f i l t e r b y p a s s c o n t r o l

T h i s b i t e n a b l e s o r d i s a b l e s t h e h i g h - p a s s f i l t e r f o r t h e A D C .

B Y P S F I L T E R B Y P A S S S T A T U S

0 H i g h - p a s s f i l t e r e n a b l e d ( d e f a u l t )

1 H i g h - p a s s f i l t e r d i s a b l e d ( b y p a s s e d )

P D D A : B i t 6 : D A C p o w e r - d o w n c o n t r o l

T h i s b i t p l a c e s t h e D A C s e c t i o n i n t h e l o w e s t p o w e r - c o n s u m p t i o n m o d e . T h e D A C o p e r a t i o n i s s t o p p e d b y c u t t i n g t h e s u p p l y c u r r e n t t o t h e D A C s e c t i o n , a n d V O U T i s f i x e d t o G N D d u r i n g D A C p o w e r - d o w n m o d e e n a b l e . F i g u r e 4 6 i l l u s t r a t e s t h e D A C V O U T r e s p o n s e f o r D A C p o w e r - d o w n O N / O F F . T h i s d o e s n o t a f f e c t t h e A D C o p e r a t

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