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w w w . i t e . c o m . t w n o v - 2 0 1 1 r e v : 0 . 9 9 1 / 3 9 IT66121FN low power transmitter with hdmi1.4 3d preliminary datasheet s p e c i f i c a t i o n v 0 . 9 9 i t e t e c h . i n c . http://
i t 6 6 1 2 1 f n w w w . i t e . c o m . t w n o v - 2 0 1 1 r e v : 0 . 9 9 2 / 3 9 g e n e r a l d e s c r i p t i o n t h e i t 6 6 1 2 1 i s a h i g h - p e r f o r m a n c e a n d l o w - p o w e r s i n g l e c h a n n e l h d m i t r a n s m i t t e r , f u l l y c o m p l i a n t w i t h h d m i 1 . 3 a , h d c p 1 . 2 a n d b a c k w a r d c o m p a t i b l e t o d v i 1 . 0 s p e c i f i c a t i o n s . i t 6 6 1 2 1 a l s o p r o v i d e t h e h d m i 1 . 4 3 d f e a t u r e , w h i c h e n a b l e s d i r e c t 3 d d i s p l a y s t h r o u g h a n h d m i l i n k . t h e i t 6 6 1 2 1 s e r v e s t o p r o v i d e t h e m o s t c o s t - e f f e c t i v e h d m i s o l u t i o n f o r d t v - r e a d y c o n s u m e r e l e c t r o n i c s s u c h a s s e t - t o p b o x e s , d v d p l a y e r s a n d a / v r e c e i v e r s , a s w e l l a s d t v - e n r i c h e d p c p r o d u c t s s u c h a s n o t e b o o k s a n d d e s k t o p s , w i t h o u t c o m p r o m i s i n g t h e p e r f o r m a n c e . i t s b a c k w a r d c o m p a t i b i l i t y t o d v i s t a n d a r d a l l o w s c o n n e c t i v i t y t o m y r i a d v i d e o d i s p l a y s s u c h a s l c d a n d c r t m o n i t o r s , i n a d d i t i o n t o t h e e v e r - s o - f l o u r i s h i n g f l a t p a n e l t v s . a s i d e f r o m t h e v a r i o u s v i d e o o u t p u t f o r m a t s s u p p o r t e d , t h e i t 6 6 1 2 1 a l s o s u p p o r t s 8 c h a n n e l s o f i 2 s d i g i t a l a u d i o , w i t h s a m p l i n g r a t e u p t o 1 9 2 k h z a n d s a m p l e s i z e u p t o 2 4 b i t s . i t 6 6 1 2 1 a l s o s u p p o r t s / p d i f i n p u t o f u p t o 1 9 2 k h z s a m p l i n g r a t e . t h e n e w l y s u p p o r t e d h i g h - b i t r a t e ( h b r ) a u d i o b y h d m i s p e c i f i c a t i o n s v 1 . 3 i s p r o v i d e d b y t h e i t 6 6 1 2 1 i n t w o i n t e r f a c e s : w i t h t h e f o u r i 2 s i n p u t p o r t s o r t h e s / p d i f i n p u t p o r t . w i t h b o t h i n t e r f a c e s t h e h i g h e s t p o s s i b l e h b r f r a m e r a t e i s s u p p o r t e d a t u p t o 7 6 8 k h z b y d e f a u l t t h e i t 6 6 1 2 1 c o m e s w i t h i n t e g r a t e d h d c p r o m s w h i c h a r e p r e - p r o g r a m m e d w i t h h d c p k e y s t h a t e n s u r e s s e c u r e d i g i t a l c o n t e n t t r a n s m i s s i o n . u s e r s n e e d n o t w o r r y a b o u t t h e p r o c u r e m e n t a n d m a i n t e n a n c e o f t h e h d c p k e y s . t h e i t 6 6 1 2 1 a l s o p r o v i d e s a c o m p l e t e s o l u t i o n o f c o n s u m e r e l e c t r o n i c s c o n t r o l ( c e c ) f u n c t i o n . t h i s o p t i o n a l c e c f e a t u r e o f h d m i s p e c i f i c a t i o n a l l o w s t h e u s e r t o c o n t r o l t w o o r m o r e c e c - e n a b l e d d e v i c e s t h r o u g h h d m i n e t w o r k . w i t h i t 6 6 1 2 1 e m b e d d e d c e c p h y , u s e r c a n u s e h i g h - l e v e l s o f t w a r e a p i t o e a s i l y i m p l e m e n t a l l t h e n e c e s s a r y r e m o t e c o n t r o l c o m m a n d s . t h e c e c b u s r e l a t e d p r o t o c o l i s h a n d l e d b y t h e c e c p h y w h i c h e l i m i n a t e s e x t r a l o a d i n g o f t h e m c u . f e a t u r e s s i n g l e c h a n n e l h d m i t r a n s m i t t e r c o m p l i a n t w i t h h d m i 1 . 3 a , h d c p 1 . 2 a n d d v i 1 . 0 s p e c i f i c a t i o n s s u p p o r t i n g p i x e l r a t e s f r o m 2 5 m h z t o 1 6 5 m h z d t v r e s o l u t i o n s : 4 8 0 i , 5 7 6 i , 4 8 0 p , 5 7 6 p , 7 2 0 p , 1 0 8 0 i u p t o 1 0 8 0 p p c r e s o l u t i o n s : v g a , s v g a , x g a , s x g a u p t o u x g a v a r i o u s v i d e o i n p u t i n t e r f a c e s u p p o r t i n g d i g i t a l v i d e o s t a n d a r d s s u c h a s : 2 4 - b i t r g b / y c b c r 4 : 4 : 4 w i t h r b s w a p o p t i o n
i t 6 6 1 2 1 f n w w w . i t e . c o m . t w n o v - 2 0 1 1 r e v : 0 . 9 9 3 / 3 9 1 6 / 2 0 / 2 4 - b i t y c b c r 4 : 2 : 2 w i t h y c s w a p o p t i o n 8 / 1 0 / 1 2 - b i t y c b c r 4 : 2 : 2 ( c c i r - 6 5 6 ) b t a - t 1 0 0 4 f o r m a t d e - o n l y i n t e r f a c e d d r o p t i o n s u p p o r t h d m i 1 . 4 3 d f e a t u r e f r a m e p a c k i n g m o d e u p t o 1 0 8 0 p @ 2 3 . 9 8 / 2 4 h z a n d 7 2 0 p @ 5 9 . 9 4 / 6 0 h z t o p a n d b o t t o m u p t o 1 0 8 0 p @ 5 9 . 9 4 / 6 0 h z s i d e - b y - s i d e ( h a l f ) u p t o 1 0 8 0 p @ 5 9 . 9 4 / 6 0 h z s i d e - b y - s i d e ( f u l l ) u p t o 7 2 0 p @ 5 9 . 9 4 / 6 0 h z b i - d i r e c t i o n c o l o r s p a c e c o n v e r s i o n ( c s c ) b e t w e e n r g b a n d y c b c r c o l o r s p a c e s w i t h p r o g r a m m a b l e c o e f f i c i e n t s . d i g i t a l a u d i o i n p u t i n t e r f a c e s u p p o r t i n g a u d i o s a m p l e r a t e : 3 2 ~ 1 9 2 k h z s a m p l e s i z e : 1 6 ~ 2 4 b i t s f o u r i 2 s i n t e r f a c e s s u p p o r t i n g 8 - c h a n n e l a u d i o s / p d i f i n t e r f a c e s u p p o r t i n g p c m , d o l b y d i g i t a l , d t s d i g i t a l a u d i o t r a n s m i s s i o n a t u p t o 1 9 2 k h z support for high-bit-rate (hbr) audio such as dts-h d and dolby truehd t h r o u g h t h e f o u r i 2 s i n t e r f a c e o r t h e s / p d i f i n t e r f a c e , w i t h f r a m e r a t e s a s h i g h a s 7 6 8 k h z c o m p a t i b l e w i t h i e c 6 0 9 5 8 a n d i e c 6 1 9 3 7 s o f t w a r e p r o g r a m m a b l e h d m i o u t p u t c u r r e n t , e n a b l i n g u s e r t o o p t i m i z e t h e p e r f o r m a n c e f o r f i x e d - c a b l e s y s t e m s o r t h o s e w i t h p r e - d e f i n e d c a b l e l e n g t h m c l k i n p u t i s o p t i o n a l f o r a u d i o o p e r a t i o n . u s e r s c o u l d o p t t o i m p l e m e n t a u d i o i n p u t i n t e r f a c e w i t h o r w i t h o u t m c l k . i n t e g r a t e d p r e - p r o g r a m m e d h d c p k e y s p u r e l y h a r d w a r e h d c p e n g i n e i n c r e a s i n g t h e r o b u s t n e s s a n d s e c u r i t y o f h d c p o p e r a t i o n m o n i t o r d e t e c t i o n t h r o u g h h o t p l u g d e t e c t i o n a n d r e c e i v e r t e r m i n a t i o n d e t e c t i o n e m b e d d e d f u l l - f u n c t i o n p a t t e r n g e n e r a t o r intelligent, programmable power management e m b e d d e d h a r d w a r e c o n t r o l l e d c e c p h y ultra low power consumption, operation power is le ss than 70mw at 1080p@60hz format. 64-pin (9x9 mm) qfn package
i t 6 6 1 2 1 f n w w w . i t e . c o m . t w n o v - 2 0 1 1 r e v : 0 . 9 9 4 / 3 9 pin diagram IT66121FN qfn-64 9x9 (top view) 31 d 13 d 12 d 11 d10 d9 pclk d8 d7 d6 d5 ivdd12 d4 d3 d2 d1 d0 de 32 33 35 41 40 39 38 37 36 34 44 43 42 pcadr s y s r s t n p c s d a p c s c l i v d d 12 o v d d d 23 d 22 d 21 d 20 d 19 d 18 d 17 d 16 d 15 d 14 o v d d 33 16 45 46 48 47 49 57 55 56 54 53 52 51 50 60 59 58 17 cec 14 13 15 12 2 3 4 5 6 7 11 8 1 63 64 d d c s c l d d c s d a h p d i n t i v d d 12 v c c 33 s c k / m c l k w s i 2s 0 i 2s 1 i 2s 2 i 2s 3/ s p d i f v s y n c h s y n c o v d d 62 entest 10 9 61 18 19 pvcc12 pvcc33 29 30 28 21 22 23 24 25 26 27 20 tx2p tx2m dvdd12 tx1p tx1m tx0p tx0m avcc12 txcp txcm rext p i n 65: g n d p a d f i g u r e 1 . i t 6 6 1 2 1 f n p i n d i a g r a m
i t 6 6 1 2 1 f n w w w . i t e . c o m . t w n o v - 2 0 1 1 r e v : 0 . 9 9 5 / 3 9 pin description digital video input pins pin name direction description type pin no. d [ 2 3 : 0 ] i n p u t d i g i t a l v i d e o i n p u t p i n s . l v t t l 3 6 - 5 0 , 5 2 - 5 5 , 57-61 d e i n p u t d a t a e n a b l e l v t t l 62 h s y n c i n p u t h o r i z o n t a l s y n c . s i g n a l l v t t l 63 v s y n c i n p u t v e r t i c a l s y n c . s i g n a l l v t t l 64 p c l k i n p u t i n p u t d a t a c l o c k l v t t l 51 d i g i t a l a u d i o i n p u t p i n s pin name direction description type pin no. s c k / m c l k i n p u t i 2 s s e r i a l c l o c k i n p u t / s p d i f m a s t e r c l o c k i n p u t l v t t l 7 w s i n p u t i 2 s w o r d s e l e c t i n p u t l v t t l 6 i 2 s 0 i n p u t i 2 s 0 s e r i a l d a t a i n p u t l v t t l 5 i 2 s 1 i n p u t i 2 s 1 s e r i a l d a t a i n p u t l v t t l 4 i 2 s 2 i n p u t i 2 s 2 s e r i a l d a t a i n p u t l v t t l 3 i 2 s 3 / s p d i f i n p u t i 2 s 3 s e r i a l d a t a i n p u t / s p d i f a u d i o i n p u t l v t t l 2 h d m i i n t e r f a c e p i n s pin name direction description type pin no. c e c i / o c e c s i g n a l ( 5 v - t o l e r a n t ) s c h m i t t 17 d d c s c l i / o i 2 c c l o c k f o r d d c ( 5 v - t o l e r a n t ) s c h m i t t 16 d d c s d a i / o i 2 c d a t a f o r d d c ( 5 v - t o l e r a n t ) s c h m i t t 15 h p d i n p u t h o t p l u g d e t e c t i o n ( 5 v - t o l e r a n t ) l v t t l 14 t m d s f r o n t - e n d i n t e r f a c e p i n s pin name direction description type pin no. t x 2 p a n a l o g h d m i c h a n n e l 2 p o s i t i v e o u t p u t t m d s 30 t x 2 m a n a l o g h d m i c h a n n e l 2 n e g a t i v e o u t p u t t m d s 29 t x 1 p a n a l o g h d m i c h a n n e l 1 p o s i t i v e o u t p u t t m d s 27 t x 1 m a n a l o g h d m i c h a n n e l 1 n e g a t i v e o u t p u t t m d s 26 t x 0 p a n a l o g h d m i c h a n n e l 0 p o s i t i v e o u t p u t t m d s 25 t x 0 m a n a l o g h d m i c h a n n e l 0 n e g a t i v e o u t p u t t m d s 24 t x c p a n a l o g h d m i c l o c k c h a n n e l p o s i t i v e o u t p u t t m d s 22
i t 6 6 1 2 1 f n w w w . i t e . c o m . t w n o v - 2 0 1 1 r e v : 0 . 9 9 6 / 3 9 t x c m a n a l o g h d m i c l o c k c h a n n e l n e g a t i v e o u t p u t t m d s 21 r e x t a n a l o g e x t e r n a l r e s i s t o r f o r s e t t i n g t m d s o u t p u t l e v e l . d e f a u l t t i e d t o agnd via a 4.7k-ohm smd resistor. a n a l o g 2 0 p r o g r a m m i n g p i n s pin name direction description type pin no. p c s c l i n p u t s e r i a l p r o g r a m m i n g c l o c k f o r c h i p p r o g r a m m i n g ( 5 v - t o l e r a n t ) s c h m i t t 12 p c s d a i / o s e r i a l p r o g r a m m i n g d a t a f o r c h i p p r o g r a m m i n g ( 5 v - t o l e r a n t ) s c h m i t t 11 i n t # o u t p u t i n t e r r u p t o u t p u t . d e f a u l t a c t i v e - l o w ( 5 v - t o l e r a n t ) l v t t l 10 s y s t e m c o n t r o l p i n s pin name direction description type pin no. e n t e s t i n p u t m u s t b e t i e d l o w v i a a r e s i s t o r . l v t t l 31 p c a d r i n p u t s e r i a l p r o g r a m m i n g d e v i c e a d d r e s s s e l e c t l v t t l 32 s y s r s t n i n p u t h a r d w a r e r e s e t p i n . a c t i v e l o w s c h m i t t 33 p o w e r / g r o u n d p i n s pin name description type pin no. i v d d 1 2 d i g i t a l l o g i c p o w e r ( 1 . 2 v ) p o w e r 8, 35, 56 o v d d i / o p i n p o w e r ( 1 . 8 v o r 2 . 5 v o r 3 . 3 v ) p o w e r 1, 34 o v d d 3 3 5 v - t o l e r a n t i / o p o w e r ( 3 . 3 v ) p o w e r 13 v c c 3 3 i n t e r n a l r o m p o w e r ( 3 . 3 v ) p o w e r 9 p v c c 1 2 h d m i c o r e p l l p o w e r ( 1 . 2 v ) p o w e r 18 p v c c 3 3 h d m i c o r e p l l p o w e r ( 3 . 3 v ) p o w e r 19 a v c c 1 2 h d m i a n a l o g f r o n t e n d p o w e r ( 1 . 2 v ) p o w e r 23 d v d d 1 2 h d m i d i g i t a l f r o n t e n d p o w e r ( 1 . 2 v ) p o w e r 28 g n d e x p o s e d g r o u n d p a d g r o u n d 65
i t 6 6 1 2 1 f n w w w . i t e . c o m . t w n o v - 2 0 1 1 r e v : 0 . 9 9 7 / 3 9 f u n c t i o n a l d e s c r i p t i o n i t 6 6 1 2 1 i s a l o w - p o w e r v e r s i o n o f h d m i 1 . 3 t r a n s m i t t e r a n d p r o v i d e s c o m p l e t e s o l u t i o n s f o r h d m i s o u r c e s y s t e m s b y i m p l e m e n t i n g a l l t h e r e q u i r e d h d m i f u n c t i o n s . i n a d d i t i o n , a d v a n c e d p r o c e s s i n g a l g o r i t h m s a r e e m p l o y e d t o o p t i m i z e t h e p e r f o r m a n c e o f v i d e o p r o c e s s i n g s u c h a s c o l o r s p a c e c o n v e r s i o n a n d y c b c r u p / d o w n - s a m p l i n g . t h e f o l l o w i n g p i c t u r e i s t h e f u n c t i o n a l b l o c k d i a g r a m o f i t 6 6 1 2 1 , w h i c h d e s c r i b e s c l e a r l y t h e d a t a f l o w .

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& 3 & 8 & f i g u r e 2 . f u n c t i o n a l b l o c k d i a g r a m o f i t 6 6 1 2 1 v i d e o d a t a p r o c e s s i n g f l o w f i g u r e 3 d e p i c t s t h e v i d e o d a t a p r o c e s s i n g f l o w . f o r t h e p u r p o s e o f r e t a i n i n g m a x i m u m f l e x i b i l i t y , m o s t o f t h e b l o c k e n a b l i n g a n d p a t h b y p a s s i n g a r e c o n t r o l l e d t h r o u g h r e g i s t e r p r o g r a m m i n g . p l e a s e r e f e r t o i t 6 6 1 2 1 p r o g r a m m i n g g u i d e f o r d e t a i l e d a n d p r e c i s e d e s c r i p t i o n s . a s c a n b e s e e n f r o m f i g u r e 3 , t h e f i r s t s t e p o f v i d e o d a t a p r o c e s s i n g i s t o p r e p a r e t h e v i d e o d a t a ( d a t a ) , d a t a e n a b l e s i g n a l ( d e ) , v i d e o c l o c k ( c l o c k ) , h o r i z o n t a l s y n c a n d v e r t i c a l s y n c s i g n a l s ( h / v s y n c ) . w h i l e t h e v i d e o d a t a a n d v i d e o c l o c k a r e a l w a y s r e a d i l y a v a i l a b l e f r o m i n p u t p i n s , t h e p r e p a r a t i o n o f t h e d a t a e n a b l e a n d s y n c s i g n a l s r e q u i r e s p e c i a l e x t r a c t i o n p r o c e s s ( e m b e d d e d c t r l . s i g n a l s e x t r a c t i o n & d e g e n e r a t o r ) d e p e n d i n g o n t h e f o r m a t o f i n p u t v i d e o d a t a . a l l t h e d a t a t h e n u n d e r g o a s e r i e s o f v i d e o p r o c e s s i n g i n c l u d i n g c o l o r - s p a c e c o n v e r s i o n a n d y c b c r
i t 6 6 1 2 1 f n w w w . i t e . c o m . t w n o v - 2 0 1 1 r e v : 0 . 9 9 8 / 3 9 u p / d o w n - s a m p l i n g . d e p e n d i n g o n t h e s e l e c t e d i n p u t a n d o u t p u t v i d e o f o r m a t s , d i f f e r e n t p r o c e s s i n g b l o c k s a r e e i t h e r e n a b l e d o r b y p a s s e d v i a r e g i s t e r c o n t r o l . f o r t h e s a k e o f f l e x i b i l i t y , t h i s i s a l l d o n e i n s o f t w a r e r e g i s t e r p r o g r a m m i n g . t h e r e f o r e , e x t r a c a r e s h o u l d b e t a k e n i n k e e p i n g t h e 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 c o m b i n a t i o n a n d t h e c o r r e s p o n d i n g v i d e o p r o c e s s i n g b l o c k s e l e c t i o n . p l e a s e r e f e r t o t h e i t 6 6 1 2 1 p r o g r a m m i n g g u i d e f o r s u g g e s t e d r e g i s t e r s e t t i n g .
i t 6 6 1 2 1 f n w w w . i t e . c o m . t w n o v - 2 0 1 1 r e v : 0 . 9 9 9 / 3 9 e n d o f a c t i v e v i d e o ( e a v ) t h a t t h i s b l o c k u s e s t o e x t r a c t t h e r e q u i r e d c o n t r o l s i g n a l s . g e n e r a t i o n o f d a t a e n a b l e s i g n a l ( d e g e n e r a t o r ) d e s i g n a l d e f i n e s t h e r e g i o n o f a c t i v e v i d e o d a t a . i n c a s e s w h e r e t h e v i d e o d e c o d e r s s u p p l y n o s u c h d e s i g n a l s t o i t 6 6 1 2 1 , t h i s b l o c k i s u s e d t o g e n e r a t e a p p r o p r i a t e d e s i g n a l f r o m h s y n c , v s y n c a n d c l o c k . u p s a m p l i n g ( y c b c r 4 2 2 t o y c b c r 4 4 4 ) i n c a s e s w h e r e i n p u t s i g n a l s a r e i n y c b c r 4 : 2 : 2 f o r m a t a n d o u t p u t i s s e l e c t e d a s 4 : 4 : 4 , t h i s b l o c k i s e n a b l e d t o d o t h e u p s a m p l i n g . b i - d i r e c t i o n a l c o l o r s p a c e c o n v e r s i o n ( y c b c r ? ? ? ? r g b ) m a n y v i d e o d e c o d e r s o n l y o f f e r y c b c r o u t p u t s , w h i l e d v i 1 . 0 s u p p o r t s o n l y r g b c o l o r s p a c e . i n o r d e r t o o f f e r f u l l c o m p a t i b i l i t y b e t w e e n v a r i o u s s o u r c e a n d s i n k c o m b i n a t i o n , t h i s b l o c k o f f e r s b i - d i r e c t i o n a l r g b ? y c b c r c o l o r s p a c e c o n v e r s i o n ( c s c ) . t o p r o v i d e m a x i m u m f l e x i b i l i t y , t h e m a t r i x c o e f f i c i e n t s o f t h e c s c e n g i n e i n i t 6 6 1 2 1 a r e f u l l y p r o g r a m m a b l e . u s e r s o f i t 6 6 1 2 1 c o u l d e l e c t t o e m p l o y t h e i r p r e f e r r e d c o n v e r s i o n f o r m u l a . d o w n s a m p l i n g ( y c b c r 4 4 4 t o y c b c r 4 2 2 ) i n c a s e s w h e r e i n p u t s i g n a l s a r e i n y c b c r 4 : 4 : 4 f o r m a t a n d o u t p u t i s s e l e c t e d a s y c b c r 4 : 2 : 2 , t h i s b l o c k i s e n a b l e d t o d o t h e d o w n s a m p l i n g . h d c p e n g i n e ( h d c p ) t h e h d c p e n g i n e i n i t 6 6 1 2 1 h a n d l e s a l l t h e p r o c e s s i n g r e q u i r e d b y h d c p m e c h a n i s m i n h a r d w a r e . s o f t w a r e i n t e r v e n t i o n i s n o t n e c e s s a r y e x c e p t c h e c k i n g f o r r e v o c a t i o n . p r e p r o g r a m m e d h d c p k e y s a r e a l s o e m b e d d e d i n i t 6 6 1 2 1 . u s e r s n e e d n o t w o r r y a b o u t t h e p u r c h a s i n g a n d m a n a g e m e n t o f t h e h d c p k e y s . t m d s d r i v e r ( t m d s d r i v e r ) t h e f i n a l s t o p o f t h e d a t a p r o c e s s i n g f l o w i s t m d s s e r i a l i z e r . t h e t m d s d r i v e r s e r i a l i z e s t h e i n p u t p a r a l l e l d a t a a n d d r i v e o u t t h e p r o p e r e l e c t r i c a l s i g n a l s t o t h e h d m i c a b l e . t h e o u t p u t c u r r e n t l e v e l i s c o n t r o l l e d t h r o u g h c o n n e c t i n g a p r e c i s i o n r e s i s t o r o f p r o p e r v a l u e t o p i n 2 0 ( r e x t ) .
i t 6 6 1 2 1 f n w w w . i t e . c o m . t w n o v - 2 0 1 1 r e v : 0 . 9 9 1 0 / 3 9 su p p o r t e d i n p u t v i d e o f o r m a t s t a b l e 1 l i s t s t h e i n p u t v i d e o f o r m a t s s u p p o r t e d b y i t 6 6 1 2 1 . i n p u t p i x e l c l o c k f r e q u e n c y ( m h z ) c o l o r space video format bus width ddr/ sdr hsync/ vsync 480i 480p xga 720p 1080i sxga 1080p uxga r g b 4:4:4 2 4 s d r s e p a r a t e 13.5 2 7 6 5 74.25 74.25 108 148.5 162 1 2 ddr s e p a r a t e 13.5 2 7 6 5 74.25 74.25 2 4 d d r s e p a r a t e 1 3 . 5 32.5 37.125 37.125 5 4 74.25 81 ycbcr 4 : 4 : 4 2 4 s d r s e p a r a t e 13.5 2 7 6 5 74.25 74.25 108 148.5 162 1 2 ddr s e p a r a t e 13.5 2 7 6 5 74.25 74.25 2 4 d d r s e p a r a t e 1 3 . 5 32.5 37.125 37.125 5 4 74.25 81 4:2:2 1 6 / 2 0 / 2 4 sdr s e p a r a t e 1 3 . 5 2 7 6 5 74.25 74.25 108 148.5 162 embedded 13.5 2 7 6 5 74.25 74.25 108 148.5 162 16/20/24 ddr s e p a r a t e 1 3 . 5 32.5 37.125 37.125 5 4 74.25 81 embedded 1 3 . 5 32.5 37.125 37.125 5 4 74.25 81 8 / 1 0 / 1 2 sdr s e p a r a t e 2 7 5 4 1 3 0 148.5 148.5 embedded 2 7 5 4 130 148.5 148.5 8 / 1 0 / 1 2 ddr s e p a r a t e 1 3 . 5 2 7 6 5 74.25 74.25 embedded 13.5 2 7 6 5 74.25 74.25 t a b l e 1 . i n p u t v i d e o f o r m a t s s u p p o r t e d b y i t 6 6 1 2 1 n o t e s : 1 . t a b l e c e l l s t h a t a r e l e f t b l a n k s a r e t h o s e f o r m a t c o m b i n a t i o n s t h a t a r e n o t s u p p o r t e d b y i t 6 6 1 2 1 . 2 . e m b e d d e d s y n c s i g n a l s a r e d e f i n e d b y c c i r - 6 5 6 s t a n d a r d , u s i n g s a v / e a v s e q u e n c e s o f f f , 0 0 , 0 0 , x y . 3 . t h e o r i g i n a l p i x e l c l o c k o f 4 8 0 i i s 1 3 . 5 m h z . h d m i s t a n d a r d m a n d a t e s t h a t a 2 7 m h z p i x e l c l o c k b e u s e d a n d p i x e l r e p e a t i n g i s e m p l o y e d t o k e e p t h e f r e q u e n c y r a n g e o f t h e h d m i l i n k w i t h i n c o n t r o l . a u d i o d a t a c a p t u r e a n d p r o c e s s i n g i t 6 6 1 2 1 t a k e s i n f o u r i 2 s i n p u t s a s w e l l a s o n e s / p d i f i n p u t o f a u d i o d a t a . t h e f o u r i 2 s i n p u t s a l l o w t r a n s m i s s i o n o f 8 - c h a n n e l u n c o m p r e s s e d a u d i o d a t a a t u p t o 1 9 2 k h z s a m p l e r a t e . t h e s / p d i f i n p u t a l l o w s t r a n s m i s s i o n o f u n c o m p r e s s e d p c m d a t a ( i e c 6 0 9 5 8 ) o r c o m p r e s s e d m u l t i - c h a n n e l d a t a ( i e c 6 1 9 3 7 ) a t u p t o 1 9 2 k h z . n o t e t h a t m c l k i n p u t i s o p t i o n a l f o r t h e i t 6 6 1 2 1 . b y d e f a u l t i t 6 6 1 2 1 g e n e r a t e s t h e m c l k i n t e r n a l l y t o p r o c e s s t h e a u d i o . n e i t h e r i 2 s n o r s / p d i f i n p u t s r e q u i r e s e x t e r n a l m c l k s i g n a l . h o w e v e r , i f t h e j i t t e r o r t h e d u t y c y c l e o f t h e i n p u t s / p d i f i s c o n s i d e r a b l e , c o h e r e n t e x t e r n a l m c l k i n p u t i s r e c o m m e n d e d a n d s u c h c o n f i g u r a t i o n c o u l d b e e n a b l e d t h r o u g h r e g i s t e r s e t t i n g . r e f e r t o i t 6 6 1 2 1 p r o g r a m m i n g g u i d e f o r s u c h s e t t i n g .
i t 6 6 1 2 1 f n w w w . i t e . c o m . t w n o v - 2 0 1 1 r e v : 0 . 9 9 1 1 / 3 9 h i g h - b i t - r a t e ( h b r ) a u d i o i s f i r s t i n t r o d u c e d i n t h e h d m i 1 . 3 s t a n d a r d . i t i s c a l l e d u p o n b y h i g h - e n d a u d i o s y s t e m s u c h a s d t s - h d a n d d o l b y t r u e h d . n o s p e c i f i c i n t e r f a c e i s d e f i n e d b y t h e h b r s t a n d a r d . t h e i t 6 6 1 2 1 s u p p o r t s h b r a u d i o i n t w o w a y s . o n e i s t o e m p l o y t h e f o u r i 2 s i n p u t s s i m u l t a n e o u s l y , w h e r e t h e o r i g i n a l s t r e a m i n g h b r a u d i o i s b r o k e n i n t o f o u r p a r a l l e l d a t a s t r e a m s b e f o r e e n t e r i n g t h e i t 6 6 1 2 1 . t h e o t h e r i s t o u s e t h e s / p d i f i n p u t p o r t . s i n c e t h e d a t a r a t e h e r e i s a s h i g h a s 9 8 . 3 0 4 m b p s , a c o h e r e n t m c l k i s r e q u i r e d i n t h i s a p p l i c a t i o n . i n t e r r u p t g e n e r a t i o n t h e s y s t e m m i c r o - c o n t r o l l e r s h o u l d t a k e i n t h e i n t e r r u p t s i g n a l o u t p u t b y i t 6 6 1 2 1 a t p i n 1 0 ( i n t ) . i n t p i n c a n b e c o n f i g u r e d a s p u s h - p u l l o r t r i s t a t e m o d e d e p e n d i n g o n u s e r ? s a p p l i c a t i o n . i t 6 6 1 2 1 g e n e r a t e s a n i n t e r r u p t s i g n a l w i t h e v e n t s i n v o l v i n g t h e f o l l o w i n g s i g n a l s o r s i t u a t i o n s : 1 . h o t - p l u g d e t e c t i o n ( p i n 1 4 , h p d ) e x p e r i e n c e s s t a t e c h a n g e s . 2 . r e c e i v e r d e t e c t i o n c i r c u i t r e p o r t s t h e p r e s e n c e o r a b s e n c e o f a n a c t i v e t e r m i n a t i o n a t t h e t m d s c l o c k c h a n n e l ( r x s e n d e t e c t ) 3 . d d c b u s i s h a n g e d f o r a n y r e a s o n s 4 . a u d i o f i f o o v e r f l o w s 5 . h d c p a u t h e n t i c a t i o n f a i l s 6 . a u d i o / v i d e o d a t a i s s t a b l e o r n o t a t y p i c a l i n i t i a l i z a t i o n o f h d m i l i n k s h o u l d b e b a s e d o n i n t e r r u p t s i g n a l a n d a p p r o p r i a t e r e g i s t e r p r o b i n g . r e c o m m e n d e d f l o w i s d e t a i l e d i n i t 6 6 1 2 1 p r o g r a m m i n g g u i d e . s i m p l y p u t , t h e m i c r o c o n t r o l l e r s h o u l d m o n i t o r t h e h p d s t a t u s f i r s t . u p o n v a l i d h p d e v e n t , m o v e o n t o c h e c k r x s e n d e t e c t r e g i s t e r t o s e e i f t h e r e c e i v e r c h i p i s r e a d y f o r f u r t h e r h a n d s h a k i n g . w h e n r x s e n d e t e c t i s a s s e r t e d , s t a r t r e a d i n g e d i d d a t a t h r o u g h d d c c h a n n e l s a n d c a r r y o n t h e r e s t o f t h e h a n d s h a k i n g s u b s e q u e n t l y . i f t h e m i c r o - c o n t r o l l e r m a k e s n o u s e o f t h e i n t e r r u p t s i g n a l a s w e l l a s t h e a b o v e - m e n t i o n e d s t a t u s r e g i s t e r s , t h e l i n k e s t a b l i s h m e n t m i g h t f a i l . p l e a s e d o f o l l o w t h e s u g g e s t e d i n i t i a l i z a t i o n f l o w r e c o m m e n d e d i n i t 6 6 1 2 1 p r o g r a m m i n g g u i d e .
i t 6 6 1 2 1 f n w w w . i t e . c o m . t w n o v - 2 0 1 1 r e v : 0 . 9 9 1 2 / 3 9 c o n f i g u r a t i o n a n d f u n c t i o n c o n t r o l i t 6 6 1 2 1 i n c l u d e s t w o s e r i a l p r o g r a m m i n g p o r t s b y d e f a u l t ( i . e . w i t h e m b e d d e d h d c p k e y s ) : o n e f o r i n t e r f a c i n g w i t h m i c r o - c o n t r o l l e r , t h e o t h e r f o r a c c e s s i n g t h e d d c c h a n n e l s o f h d m i l i n k . t h e s e r i a l p r o g r a m m i n g i n t e r f a c e f o r i n t e r f a c i n g t h e m i c r o - c o n t r o l l e r i s a s l a v e i n t e r f a c e , c o m p r i s i n g p c s c l ( p i n 1 2 ) a n d p c s d a ( p i n 1 1 ) . t h e m i c r o - c o n t r o l l e r u s e s t h i s i n t e r f a c e t o m o n i t o r a l l t h e s t a t u s e s a n d c o n t r o l a l l t h e f u n c t i o n s . t w o d e v i c e a d d r e s s e s a r e a v a i l a b l e , d e p e n d i n g o n t h e i n p u t l o g i c l e v e l o f p c a d r ( p i n 3 2 ) . i f p c a d r i s p u l l e d h i g h b y t h e u s e r , t h e d e v i c e a d d r e s s i s 0 x 9 a . i f p u l l e d l o w , 0 x 9 8 . t h e i 2 c i n t e r f a c e f o r a c c e s s i n g t h e d d c c h a n n e l s o f t h e h d m i l i n k i s a m a s t e r i n t e r f a c e , c o m p r i s i n g d d c s c l ( p i n 1 6 ) a n d d d c s d a ( p i n 1 5 ) . i t 6 6 1 2 1 u s e s t h i s i n t e r f a c e t o r e a d t h e e d i d d a t a a n d p e r f o r m h d c p a u t h e n t i c a t i o n p r o t o c o l w i t h t h e s i n k d e v i c e o v e r t h e h d m i c a b l e . f o r t e m p o r a r i l y s t o r i n g t h e a c q u i r e d e d i d d a t a , i t 6 6 1 2 1 i n c l u d e s a 3 2 b y t e s d e d i c a t e d f i f o . t h e m i c r o - c o n t r o l l e r m a y c o m m a n d i t 6 6 1 2 1 t o a c q u i r e 3 2 b y t e s o f e d i d i n f o r m a t i o n , r e a d i t b a c k a n d t h e n c o n t i n u e t o r e a d t h e n e x t 3 2 b y t e s u n t i l g e t t i n g a l l n e c e s s a r y e d i d i n f o r m a t i o n . t h e h d c p p r o t o c o l o f i t 6 6 1 2 1 i s c o m p l e t e l y i m p l e m e n t e d i n h a r d w a r e . n o s o f t w a r e i n t e r v e n t i o n i s n e e d e d e x c e p t f o r r e v o c a t i o n l i s t c h e c k i n g . v a r i o u s h d c p - r e l a t e d s t a t u s e s a r e s t o r e d i n h d c p r e g i s t e r s f o r t h e r e f e r e n c e o f m i c r o - c o n t r o l l e r . r e f e r t o i t 6 6 1 2 1 p r o g r a m m i n g g u i d e f o r d e t a i l e d r e g i s t e r d e s c r i p t i o n s . t h e h d c p s t a n d a r d a l s o s p e c i f i e s a s p e c i a l m e s s a g e r e a d p r o t o c o l o t h e r t h a n t h e s t a n d a r d i 2 c p r o t o c o l . s e e f i g u r e 4 f o r c h e c k i n g h d c p p o r t l i n k i n t e g r i t y . s l a v e a d d r ( 7 ) s r a r e a d d a t a ( 8 ) a r e a d d a t a ( 8 ) a r e a d d a t a ( 8 ) na p s = s t a r t ; r = r e a d ; a = a c k ; n a = n o a c k ; p = s t o p f i g u r e 4 . h d c p p o r t l i n k i n t e g r i t y m e s s a g e r e a d a l l s e r i a l p r o g r a m m i n g i n t e r f a c e s c o n f o r m t o s t a n d a r d i 2 c t r a n s a c t i o n s a n d o p e r a t e a t u p t o 1 0 0 k h z .
i t 6 6 1 2 1 f n w w w . i t e . c o m . t w n o v - 2 0 1 1 r e v : 0 . 9 9 1 3 / 3 9 electrical specifications absolute maximum ratings symbol parameter min. typ max unit i v d d 1 2 c o r e l o g i c s u p p l y v o l t a g e - 0 . 5 1 . 5 v o v d d 3 3 5 v - t o l e r a n c e i / o p i n s s u p p l y v o l t a g e - 0 . 3 4 . 0 v o v d d 1 . 8 v i / o p i n s s u p p l y v o l t a g e ( o v d d = 1 . 8 v ) - 0 . 3 2 . 5 v o v d d 2 . 5 v i / o p i n s s u p p l y v o l t a g e ( o v d d = 2 . 5 v ) - 0 . 3 3 . 2 v o v d d 3 . 3 v i / o p i n s s u p p l y v o l t a g e ( o v d d = 3 . 3 v ) - 0 . 3 4 . 0 v v c c 3 3 r o m s u p p l y v o l t a g e - 0 . 3 4 . 0 v a v c c 1 2 h d m i a n a l o g f r o n t e n d s u p p l y v o l t a g e - 0 . 5 1 . 5 v p v c c 1 2 h d m i c o r e p l l s u p p l y v o l t a g e - 0 . 5 1 . 5 v p v c c 3 3 h d m i c o r e p l l s u p p l y v o l t a g e - 0 . 3 4 . 0 v d v d d 1 2 h d m i a f e d i g i t a l s u p p l y v o l t a g e - 0 . 5 1 . 5 v v i i n p u t v o l t a g e - 0 . 3 o v d d + 0 . 3 v v o o u t p u t v o l t a g e - 0 . 3 o v d d + 0 . 3 v t j j u n c t i o n t e m p e r a t u r e 1 2 5 c t s t g s t o r a g e t e m p e r a t u r e - 6 5 1 5 0 c e s d _ h b h u m a n b o d y m o d e e s d s e n s i t i v i t y 2 0 0 0 v e s d _ m m m a c h i n e m o d e e s d s e n s i t i v i t y 2 0 0 v n o t e s : 1 . 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 i g h t r e s u l t i n 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 . 2 . r e f e r t o f u n c t i o n a l o p e r a t i o n c o n d i t i o n s f o r n o r m a l o p e r a t i o n . f u n c t i o n a l o p e r a t i o n c o n d i t i o n s symbol parameter min. typ max unit i v d d 1 2 c o r e l o g i c s u p p l y v o l t a g e 1 . 1 4 1 . 2 1 . 2 6 v o v d d 3 3 i / o p i n s s u p p l y v o l t a g e 3 . 0 3 . 3 3 . 6 v ovdd 1 . 8 v i / o p i n s s u p p l y v o l t a g e 1 . 6 2 1 . 8 1 . 9 8 v 2 . 5 v i / o p i n s s u p p l y v o l t a g e 2 . 2 5 2 . 5 2 . 7 5 v 3 . 3 v i / o p i n s s u p p l y v o l t a g e 3 . 0 3 . 3 3 . 6 v v c c 3 3 r o m s u p p l y v o l t a g e 3 . 0 3 . 3 3 . 6 v a v c c 1 2 h d m i a n a l o g f r o n t e n d s u p p l y v o l t a g e 1 . 1 4 1 . 2 1 . 2 6 v p v c c 1 2 h d m i c o r e p l l s u p p l y v o l t a g e 1 . 1 4 1 . 2 1 . 2 6 v p v c c 3 3 h d m i c o r e p l l s u p p l y v o l t a g e 3 . 0 3 . 3 3 . 6 v d v d d 1 2 h d m i a f e d i g i t a l s u p p l y v o l t a g e 1 . 1 4 1 . 2 1 . 2 6 v v c c n o i s e s u p p l y n o i s e 1 0 0 m v p p t a a m b i e n t t e m p e r a t u r e 0 2 5 7 0 c
i t 6 6 1 2 1 f n w w w . i t e . c o m . t w n o v - 2 0 1 1 r e v : 0 . 9 9 1 4 / 3 9 ja junction to ambient thermal resistance 40 c/w n o t e s : 1 . a v c c 1 2 , p v c c 1 2 a n d p v c c 3 3 s h o u l d b e r e g u l a t e d . 2 . s e e s y s t e m d e s i g n c o n s i d e r a t i o n f o r s u p p l y d e c o u p l i n g a n d r e g u l a t i o n .
i t 6 6 1 2 1 f n w w w . i t e . c o m . t w n o v - 2 0 1 1 r e v : 0 . 9 9 1 5 / 3 9 d c e l e c t r i c a l s p e c i f i c a t i o n u n d e r f u n c t i o n a l o p e r a t i o n c o n d i t i o n s for 1.8v ovdd for 2.5v ovdd for 3.3v ovdd unit symbol parameter pin type min typ max min typ max min typ max v i h i n p u t l o w v o l t a g e 1 l v t t l 0 . 6 0 . 7 0 . 8 v v i l i n p u t h i g h v o l t a g e 1 l v t t l 1.2 1 . 7 2 . 0 v v t - s c h m i t t t r i g g e r n e g a t i v e g o i n g t h r e s h o l d v o l t a g e 1 s c h m i t t 0 . 6 3 0.75 0 . 9 4 1.06 1 . 2 2 1.39 v v t + s c h m i t t t r i g g e r p o s i t i v e g o i n g t h r e s h o l d v o l t a g e 1 s c h m i t t 1 . 0 5 1.14 1 . 3 5 1.48 1 . 7 0 1.92 v v o l o u t p u t l o w v o l t a g e 1 l v t t l 0 . 4 0 . 4 0 . 4 v v o h o u t p u t h i g h v o l t a g e 1 l v t t l 1.4 2 . 1 2 . 9 v i i n i n p u t l e a k a g e c u r r e n t 1 a l l -10 + 1 0 -10 + 1 0 -10 + 1 0 a i o z t r i - s t a t e o u t p u t l e a k a g e c u r r e n t 1 a l l -10 + 1 0 -10 + 1 0 -10 + 1 0 a i o l s e r i a l p r o g r a m m i n g o u t p u t s i n k c u r r e n t 2 s c h m i t t 2 . 5 1 0 m a v s w i n g t m d s o u t p u t s i n g l e - e n d e d s w i n g 3 t m d s 400 6 0 0 400 6 0 0 400 6 0 0 mv i o f f s i n g l e - e n d e d s t a n d b y o u t p u t c u r r e n t 3 t m d s 1 0 1 0 1 0 a n o t e s : 1 . g u a r a n t e e d b y i / o d e s i g n . 2 . t h e s e r i a l p r o g r a m m i n g o u t p u t p o r t s a r e n o t r e a l o p e n - d r a i n d r i v e r s . s i n k c u r r e n t i s g u a r a n t e e d b y i / o d e s i g n u n d e r t h e c o n d i t i o n o f d r i v i n g t h e o u t p u t p i n w i t h 0 . 2 v . i n a r e a l s e r i a l p r o g r a m m i n g e n v i r o n m e n t , m u l t i p l e d e v i c e s a n d p u l l - u p r e s i s t o r s c o u l d b e p r e s e n t o n t h e s a m e b u s , r e n d e r i n g t h e e f f e c t i v e p u l l - u p r e s i s t a n c e m u c h l o w e r t h a n t h a t s p e c i f i e d b y t h e i 2 c s t a n d a r d . w h e n s e t a t m a x i m u m c u r r e n t , t h e s e r i a l p r o g r a m m i n g o u t p u t p o r t s o f i t 6 6 1 2 1 a r e c a p a b l e o f p u l l i n g d o w n a n e f f e c t i v e p u l l - u p r e s i s t a n c e a s l o w a s 5 0 0 c o n n e c t e d t o 5 v t e r m i n a t i o n v o l t a g e t o t h e s t a n d a r d i 2 c v i l . w h e n e x p e r i e n c i n g i n s u f f i c i e n t l o w l e v e l p r o b l e m , t r y s e t t i n g t h e c u r r e n t l e v e l t o h i g h e r t h a n d e f a u l t . r e f e r t o i t 6 6 1 2 1 p r o g r a m m i n g g u i d e f o r p r o p e r r e g i s t e r s e t t i n g . 3 . l i m i t s d e f i n e d b y h d m i s t a n d a r d a u d i o a c t i m i n g s p e c i f i c a t i o n u n d e r f u n c t i o n a l o p e r a t i o n c o n d i t i o n s symbol parameter conditions min typ max unit f s _ i 2 s i 2 s s a m p l e r a t e u p t o 8 c h a n n e l s 3 2 1 9 2 k h z f s_spdif s / p d i f s a m p l e r a t e 2 c h a n n e l s 3 2 1 9 2 k h z
i t 6 6 1 2 1 f n w w w . i t e . c o m . t w n o v - 2 0 1 1 r e v : 0 . 9 9 1 6 / 3 9 v i d e o a c t i m i n g s p e c i f i c a t i o n u n d e r f u n c t i o n a l o p e r a t i o n c o n d i t i o n s symbol parameter conditions min typ max unit t p i x e l p c l k p i x e l c l o c k p e r i o d 1 s i n g l e - e d g e d c l o c k i n g 6 . 0 6 4 0 n s f p i x e l p c l k p i x e l c l o c k f r e q u e n c y 1 2 5 1 6 5 m h z t c d e p c l k d u a l - e d g e d c l o c k p e r i o d 2 d u a l - e d g e d c l o c k i n g 1 3 . 4 7 4 0 n s f c d e p c l k d u a l - e d g e d c l o c k f r e q u e n c y 2 2 5 7 4 . 2 5 m h z t p d u t y p c l k c l o c k d u t y c y c l e 4 0 % 6 0 % t p j p c l k w o r s t - c a s e j i t t e r 2 . 0 n s t s v i d e o d a t a s e t u p t i m e 3 s i n g l e - e d g e d c l o c k i n g 1 . 5 n s t h v i d e o d a t a h o l d t i m e 3 0 . 7 n s t s d e v i d e o d a t a s e t u p t i m e 3 d u a l - e d g e d c l o c k i n g 1 . 5 n s t h d e v i d e o d a t a h o l d t i m e 3 0 . 7 n s n o t e s : 1 . f p i x e l i s t h e i n v e r s e o f t p i x e l . o p e r a t i n g f r e q u e n c y r a n g e i s g i v e n h e r e w h i l e t h e a c t u a l v i d e o c l o c k f r e q u e n c y s h o u l d c o m p l y w i t h a l l v i d e o t i m i n g s t a n d a r d s . r e f e r t o t a b l e 1 f o r s u p p o r t e d v i d e o t i m i n g s a n d c o r r e s p o n d i n g p i x e l f r e q u e n c i e s . 2 . 1 2 - b i t d u a l - e d g e d c l o c k i n g i s s u p p o r t e d u p t o 7 4 . 5 m h z o f p c l k f r e q u e n c y , w h i c h c o v e r s 7 2 0 p / 1 0 8 0 i . 3 . a l l s e t u p t i m e a n d h o l d t i m e s p e c i f i c a t i o n s a r e w i t h r e s p e c t t o t h e l a t c h i n g e d g e o f p c l k s e l e c t e d b y t h e u s e r t h r o u g h r e g i s t e r p r o g r a m m i n g .
i t 6 6 1 2 1 f n w w w . i t e . c o m . t w n o v - 2 0 1 1 r e v : 0 . 9 9 1 7 / 3 9 o p e r a t i o n s u p p l y c u r r e n t s p e c i f i c a t i o n n o r m a l o p e r a t i o n m o d e typical mode t t l i n p u t t e s t 3 . 3 v , 2 . 5 v a n d 1 . 8 v resolution mode hdcp video in/out format audio deep color video pattern 4 8 0 p @ 6 0 h z hdmi o n y u v 4 4 4 t o r g b 4 4 4 48k2ch 8bits 720p@60hz 1080p@60hz 1600x1200@60hz dvi off no csc off 8bits max mode t t l i n p u t t e s t 3 . 3 v , 2 . 5 v a n d 1 . 8 v resolution mode hdcp video in/out format audio deep color video pattern 4 8 0 p @ 6 0 h z hdmi o n y u v 4 4 4 t o r g b 4 4 4 192k2ch 8bits 720p@60hz 1080p@60hz 1600x1200@60hz dvi off no csc off 8bits symbol video timing pclk(mhz) typical max unit i ovdd33 4 8 0 p 6 0 8 - b i t 2 7 . 0 0 . 0 7 0 . 0 7 m a 7 2 0 p 6 0 8 - b i t 7 4 . 2 5 0 . 0 7 0 . 0 7 ma 1 0 8 0 p 6 0 8 - b i t 1 4 8 . 5 0 . 0 7 0 . 0 7 ma 1 6 0 0 x 1 2 0 0 p 6 0 8 - b i t 1 6 2 . 0 0 . 0 7 0 . 0 7 ma i vcc33 4 8 0 p 6 0 8 - b i t 2 7 . 0 0 . 0 4 0 . 0 4 m a 7 2 0 p 6 0 8 - b i t 7 4 . 2 5 0 . 0 4 0 . 0 4 ma 1 0 8 0 p 6 0 8 - b i t 1 4 8 . 5 0 . 0 4 0 . 0 4 ma 1 6 0 0 x 1 2 0 0 p 6 0 8 - b i t 1 6 2 . 0 0 . 0 0 0 . 0 0 ma i p v c c 3 3 4 8 0 p 6 0 8 - b i t 2 7 . 0 1 . 6 8 1 . 6 8 ma
i t 6 6 1 2 1 f n w w w . i t e . c o m . t w n o v - 2 0 1 1 r e v : 0 . 9 9 1 8 / 3 9 7 2 0 p 6 0 8 - b i t 7 4 . 2 5 5 . 7 7 5 . 7 7 ma 1 0 8 0 p 6 0 8 - b i t 1 4 8 . 5 3 . 1 6 3 . 1 6 ma 1 6 0 0 x 1 2 0 0 p 6 0 8 - b i t 1 6 2 . 0 3 . 5 3 3 . 5 3 ma i ivdd12 4 8 0 p 6 0 8 - b i t 2 7 . 0 4 . 7 7 6 . 1 0 m a 7 2 0 p 6 0 8 - b i t 7 4 . 2 5 1 1 . 0 2 1 3 . 2 4 ma 1 0 8 0 p 6 0 8 - b i t 1 4 8 . 5 2 1 . 2 2 2 4 . 6 3 ma 1 6 0 0 x 1 2 0 0 p 6 0 8 - b i t 1 6 2 . 0 1 6 . 7 4 5 2 0 . 6 ma i dvdd12 4 8 0 p 6 0 8 - b i t 2 7 . 0 1 . 3 6 1 . 3 6 m a 7 2 0 p 6 0 8 - b i t 7 4 . 2 5 3 . 4 4 3 . 4 4 ma 1 0 8 0 p 6 0 8 - b i t 1 4 8 . 5 6 . 6 9 6 . 6 9 ma 1 6 0 0 x 1 2 0 0 p 6 0 8 - b i t 1 6 2 . 0 7 . 2 7 . 2 ma i avcc12 4 8 0 p 6 0 8 - b i t 2 7 . 0 9 . 9 5 9 . 9 5 m a 7 2 0 p 6 0 8 - b i t 7 4 . 2 5 1 0 . 6 9 1 0 . 6 9 ma 1 0 8 0 p 6 0 8 - b i t 1 4 8 . 5 1 1 . 8 4 1 1 . 8 4 ma 1 6 0 0 x 1 2 0 0 p 6 0 8 - b i t 1 6 2 . 0 1 2 . 0 1 2 . 0 ma i pvcc12 4 8 0 p 6 0 8 - b i t 2 7 . 0 0 . 8 7 0 . 8 7 m a 7 2 0 p 6 0 8 - b i t 7 4 . 2 5 2 . 3 2 2 . 3 2 ma 1 0 8 0 p 6 0 8 - b i t 1 4 8 . 5 2 . 6 2 . 6 ma 1 6 0 0 x 1 2 0 0 p 6 0 8 - b i t 1 6 2 . 0 2 . 8 5 2 . 8 5 ma w h e n o v d d = 3 . 3 v i o v d d t t l i n p u t i s 3 . 3 v 4 8 0 p 6 0 8 - b i t 2 7 . 0 0.13 0 . 1 5 ma 7 2 0 p 6 0 8 - b i t 74.25 0.3 0 . 3 7 ma 1 0 8 0 p 6 0 8 - b i t 148.5 0.49 0 . 6 5 ma 1 6 0 0 x 1 2 0 0 p 6 0 8 - b i t 162.0 0.44 0 . 7 5 ma p t o t a l ttl input is 3.3v 4 8 0 p 6 0 8 - b i t 2 7 . 0 2 6 . 6 7 6 2 8 . 3 3 8 m w 7 2 0 p 6 0 8 - b i t 7 4 . 2 5 5 3 . 3 5 8 5 6 . 2 5 3 mw 1 0 8 0 p 6 0 8 - b i t 1 4 8 . 5 6 3 . 2 2 8 6 8 . 8 4 8 mw 1 6 0 0 x 1 2 0 0 p 6 0 8 - b i t 1 6 2 . 0 6 3 . 8 4 6 5 . 5 3 5 mw w h e n o v d d = 2 . 5 v i o v d d t t l i n p u t i s 2 . 5 v 4 8 0 p 6 0 8 - b i t 2 7 . 0 0.036 0 . 0 6 5 ma 7 2 0 p 6 0 8 - b i t 74.25 0.132 0 . 1 6 4 ma 1 0 8 0 p 6 0 8 - b i t 148.5 0.248 0 . 3 2 8 ma 1 6 0 0 x 1 2 0 0 p 6 0 8 - b i t 162.0 0.264 0 . 4 6 1 ma p t o t a l 4 8 0 p 6 0 8 - b i t 2 7 . 0 2 5 . 6 7 5 2 2 7 . 3 7 2 mw
i t 6 6 1 2 1 f n w w w . i t e . c o m . t w n o v - 2 0 1 1 r e v : 0 . 9 9 1 9 / 3 9 t t l i n p u t i s 2 . 5 v 7 2 0 p 6 0 8 - b i t 7 4 . 2 5 5 0 . 7 3 2 4 53.6658 mw 1 0 8 0 p 6 0 8 - b i t 1 4 8 . 5 6 0 . 4 0 5 6 65.1216 mw 1 6 0 0 x 1 2 0 0 p 6 0 8 - b i t 1 6 2 . 0 6 0 . 7 3 6 8 62.6682 mw w h e n o v d d = 1 . 8 v i o v d d t t l i n p u t i s 1 . 8 v 4 8 0 p 6 0 8 - b i t 2 7 . 0 0.000 0 . 0 0 0 ma 7 2 0 p 6 0 8 - b i t 74.25 0.043 0 . 0 5 2 ma 1 0 8 0 p 6 0 8 - b i t 148.5 0.115 0 . 1 7 2 ma 1 6 0 0 x 1 2 0 0 p 6 0 8 - b i t 162.0 0.121 0 . 2 2 8 ma p t o t a l ttl input is 1.8v 4 8 0 p 6 0 8 - b i t 2 7 . 0 2 5 . 6 3 2 2 7 . 2 9 4 m w 7 2 0 p 6 0 8 - b i t 7 4 . 2 5 5 0 . 6 2 5 6 53.5314 mw 1 0 8 0 p 6 0 8 - b i t 1 4 8 . 5 6 0 . 2 4 6 6 4 . 9 3 3 mw 1 6 0 0 x 1 2 0 0 p 6 0 8 - b i t 1 6 2 . 0 6 0 . 5 6 5 2 62.3886 mw s t a n d b y m o d e standby mode t t l i n p u t t e s t 3 . 3 v , 2 . 5 v a n d 1 . 8 v resolution hdcp video in/out format audio deep color video pattern 1080p@60hz on yuv444torgb444 on 8bits symbol standby p c l k / n o p c l k unit symbol standby p c l k / n o p c l k unit i o v d d 3 3 0 . 0 2 3 / 0 . 0 2 3 m a 3 . 3 v 0 . 0 2 3 / 0 . 0 2 3 ma i v c c 3 3 0 . 0 0 0 / 0 . 0 0 0 m a i p v c c 3 3 0 . 0 0 0 / 0 . 0 0 0 ma i i v d d 1 2 0 . 5 3 9 / 0 . 1 1 4 m a 1 . 2 v 0 . 8 4 6 / 0 . 2 8 7 ma i d v d d 1 2 0 . 1 7 4 / 0 . 1 7 3 ma i a v c c 1 2 0 . 0 0 0 / 0 . 0 0 0 ma i p v c c 1 2 0 . 1 3 3 / 0 . 0 0 0 ma i ovdd (3.3v) 0 . 1 0 2 / 0 . 0 0 0 m a i o v d d ( 3 . 3 v ) 0 . 1 0 2 / 0 . 0 0 0 ma i ovdd (2.5v) 0 . 0 5 6 / 0 . 0 0 0 m a i o v d d ( 2 . 5 v ) 0 . 0 5 6 / 0 . 0 0 0 ma i ovdd (1.8v) 0 . 0 1 6 / 0 . 0 0 0 m a i o v d d ( 1 . 8 v ) 0 . 0 1 6 / 0 . 0 0 0 ma t t l i n p u t i s 3 . 3 v p total 1 . 4 2 7 7 / 0 . 4 2 0 3 mw
i t 6 6 1 2 1 f n w w w . i t e . c o m . t w n o v - 2 0 1 1 r e v : 0 . 9 9 2 0 / 3 9 ttl input is 2.5v p total 1.2311 / 0.4203 mw ttl input is 1.8v p total 1.1199 / 0.4203 mw n o t e s : 1 . p t o t a l a r e c a l c u l a t e d b y m u l t i p l y i n g t h e s u p p l y c u r r e n t s w i t h t h e i r c o r r e s p o n d i n g s u p p l y v o l t a g e a n d s u m m i n g u p a l l t h e i t e m s . v i d e o d a t a b u s m a p p i n g s i t 6 6 1 2 1 s u p p o r t s v a r i o u s i n p u t d a t a m a p p i n g s a n d f o r m a t s , i n c l u d i n g t h o s e w i t h e m b e d d e d c o n t r o l s i g n a l s o n l y . c o r r e s p o n d i n g r e g i s t e r s e t t i n g i s m a n d a t o r y f o r a n y c h o s e n i n p u t d a t a m a p p i n g s . r e f e r t o i t 6 6 1 2 1 p r o g r a m m i n g g u i d e f o r d e t a i l e d i n s t r u c t i o n . color space video format bus width sdr/ddr h/vsync clocking table figure r g b 4:4:4 2 4 s d r s e p a r a t e 1 x 3 5 1 2 d d r 12 12 2 4 d d r 0 . 5 x 13 13 ycbcr 4 : 4 : 4 2 4 s d r s e p a r a t e 1 x 3 5 1 2 d d r 12 12 2 4 d d r 0 . 5 x 13 13 4:2:2 1 6 / 2 0 / 2 4 s d r s e p a r a t e 1 x 4 6 e m b e d d e d 5 7 1 6 / 2 0 / 2 4 ddr s e p a r a t e 0 . 5 x 1 4 1 4 e m b e d d e d note 1 8 / 1 0 / 1 2 sdr s e p a r a t e 2 x 8 1 0 e m b e d d e d 7 9 8 / 1 0 / 1 2 ddr s e p a r a t e 1 x n o t e 2 e m b e d d e d 15 15 t a b l e 2 . i n p u t v i d e o f o r m a t s u p p o r t e d b y i t 6 6 1 2 1 n o t e s : 1 . t h e m a p p i n g o f t h i s f o r m a t i s t h e s a m e a s t a b l e 5 a n d t h e t i m i n g d i a g r a m i s s i m i l a r t o f i g u r e 1 4 e x c e p t t h e s y n c s a r e e m b e d d e d . 2 . t h e m a p p i n g o f t h i s f o r m a t i s t h e s a m e a s t a b l e 8 a n d t h e t i m i n g d i a g r a m i s s i m i l a r t o f i g u r e 1 5 e x c e p t t h e s y n c s a r e s e p a r a t e d . w i t h c e r t a i n i n p u t f o r m a t s , n o t a l l 2 4 d a t a i n p u t p i n s a r e u s e d . i n t h a t c a s e , i t i s r e c o m m e n d e d t o t i e t h e u n u s e d i n p u t p i n s t o g r o u n d .
i t 6 6 1 2 1 f n w w w . i t e . c o m . t w n o v - 2 0 1 1 r e v : 0 . 9 9 2 1 / 3 9 2 4 - b i t r g b / yc b c r 4 4 4 ( se p a r a t e s y n c s ) th e s e a r e t h e s i m p l e s t f o r m a t s , w i t h a c o m p l e t e d e f i n i t i o n o f e v e r y p i x e l i n e a c h c l o c k p e r i o d . t i m i n g d i a g r a m i s d e p i c t e d i n f i g . 5 . p i n n a m e rgb ycbcr d 0 b0 cb0 d 1 b1 cb1 d 2 b2 cb2 d 3 b3 cb3 d 4 b4 cb4 d 5 b5 cb5 d 6 b6 cb6 d 7 b7 cb7 d 8 g0 y0 d 9 g1 y1 d 10 g2 y2 d 11 g3 y3 d 12 g4 y4 d 13 g5 y5 d 14 g6 y6 d 15 g7 y7 d 16 r0 cr0 d 17 r1 cr1 d 18 r2 cr2 d 19 r3 cr3 d 20 r4 cr4 d 21 r5 cr5 d 22 r6 cr6 d 23 r7 cr7 hsync hsync hsync vsync vsync vsync d e de de table 3. mappings of 24-bit rgb/ycbcr444 (separate syncs)
i t 6 6 1 2 1 f n w w w . i t e . c o m . t w n o v - 2 0 1 1 r e v : 0 . 9 9 2 2 / 3 9 1 6 / 2 0 / 2 4 - b i t yc b c r 4 2 2 w i t h se p a r a t e s y n c s yc b c r 4 : 2 : 2 f o r m a t d o e s n o t h a v e o n e c o m p l e t e p i x e l f o r e v e r y c l o c k p e r i o d . l u m i n a c e c h a n n e l ( y ) i s g i v e n f o r e v e r y p i x e l , w h i l e t h e t w o c h r o m a c h a n n e l s a r e g i v e n a l t e r n a t i v e l y o n e v e r y o t h e r c l o c k p e r i o d . t h e d e p e r i o d s h o u l d c o n t a i n a n e v e n n u m b e r o f c l o c k p e r i o d s . yc b c r 4 : 2 : 2 1 6 - b i t y cbcr 4:2:2 20-bit y cbcr 4:2:2 24-bit p in name p ixel#2n p ixel#2n+1 p ixel#2n p ixel#2n+1 p ixel#2n p ixel#2n+1 d 0 g rounded g r o u n d e d g rounded g rounded y 0 y 0 d 1 g rounded g r o u n d e d g rounded g rounded y 1 y 1 d 2 g rounded g rounded y 0 y 0 y 2 y 2 d 3 g rounded g rounded y 1 y 1 y 3 y 3 d 4 y 0 y 0 y 2 y 2 y 4 y 4 d 5 y 1 y 1 y 3 y 3 y 5 y 5 d 6 y 2 y 2 y 4 y 4 y 6 y 6 d 7 y 3 y 3 y 5 y 5 y 7 y 7 d 8 y 4 y 4 y 6 y 6 y 8 y 8 d 9 y 5 y 5 y 7 y 7 y 9 y 9 d 10 y 6 y 6 y 8 y 8 y 1 0 y 10 d 11 y 7 y 7 y 9 y 9 y 1 1 y 11 d 12 g rounded g r o u n d e d g rounded g rounded c b0 c r0 d 13 g rounded g r o u n d e d g rounded g rounded c b1 c r1 d 14 g rounded g rounded c b0 c r0 c b2 c r2 d 15 g rounded g rounded c b1 c r1 c b3 c r3 d 16 c b0 c r0 c b2 c r2 c b4 c r4 d 17 c b1 c r1 c b3 c r3 c b5 c r5 d 18 c b2 c r2 c b4 c r4 c b6 c r6 d 19 c b3 c r3 c b5 c r5 c b7 c r7 d 20 c b4 c r4 c b6 c r6 c b8 c r8 d 21 c b5 c r5 c b7 c r7 c b9 c r9 d 22 c b6 c r6 c b8 c r8 c b10 c r10 d 23 c b7 c r7 c b9 c r9 c b11 c r11 h s y n c h s y n c h s y n c h s y n c h s y n c h s y n c h sync v s y n c v s y n c v s y n c v s y n c v s y n c v s y n c v sync d e d e d e d e d e d e d e t able 4. mappings of 16/20/24-bit ycbcr422 with sep arate syncs
i t 6 6 1 2 1 f n w w w . i t e . c o m . t w n o v - 2 0 1 1 r e v : 0 . 9 9 2 3 / 3 9 1 6 / 2 0 / 2 4 - b i t yc b c r 4 2 2 w i t h em b e d d e d s y n c s th i s i s s i m i l a r t o t h e p r e v i o u s f o r m a t . t h e o n l y d i f f e r e n c e i s t h a t t h e s y n c s a r e e m b e d d e d . b u s w i d t h c o u l d b e 1 6 - b i t , 2 0 - b i t o r 2 4 - b i t . yc b c r 4 : 2 : 2 1 6 - b i t y cbcr 4:2:2 20-bit y cbcr 4:2:2 24-bit p in name p ixel#2n p ixel#2n+1 p ixel#2n p ixel#2n+1 p ixel#2n p ixel#2n+1 d 0 g rounded g r o u n d e d g rounded g rounded y 0 y 0 d 1 g rounded g r o u n d e d g rounded g rounded y 1 y 1 d 2 g rounded g rounded y 0 y 0 y 2 y 2 d 3 g rounded g rounded y 1 y 1 y 3 y 3 d 4 y 0 y 0 y 2 y 2 y 4 y 4 d 5 y 1 y 1 y 3 y 3 y 5 y 5 d 6 y 2 y 2 y 4 y 4 y 6 y 6 d 7 y 3 y 3 y 5 y 5 y 7 y 7 d 8 y 4 y 4 y 6 y 6 y 8 y 8 d 9 y 5 y 5 y 7 y 7 y 9 y 9 d 10 y 6 y 6 y 8 y 8 y 1 0 y 10 d 11 y 7 y 7 y 9 y 9 y 1 1 y 11 d 12 g rounded g r o u n d e d g rounded g rounded c b0 c r0 d 13 g rounded g r o u n d e d g rounded g rounded c b1 c r1 d 14 g rounded g rounded c b0 c r0 c b2 c r2 d 15 g rounded g rounded c b1 c r1 c b3 c r3 d 16 c b0 c r0 c b2 c r2 c b4 c r4 d 17 c b1 c r1 c b3 c r3 c b5 c r5 d 18 c b2 c r2 c b4 c r4 c b6 c r6 d 19 c b3 c r3 c b5 c r5 c b7 c r7 d 20 c b4 c r4 c b6 c r6 c b8 c r8 d 21 c b5 c r5 c b7 c r7 c b9 c r9 d 22 c b6 c r6 c b8 c r8 c b10 c r10 d 23 c b7 c r7 c b9 c r9 c b11 c r11 h sync g rounded g rounded g rounded g rounded g rounded g rounded v sync g rounded g rounded g rounded g rounded g rounded g rounded d e g rounded g rounded g rounded g rounded g rounded g rounded t able 5. mappings of 16/20/24-bit ycbcr422 with emb edded syncs
i t 6 6 1 2 1 f n w w w . i t e . c o m . t w n o v - 2 0 1 1 r e v : 0 . 9 9 2 4 / 3 9 n o t e : 1 . f f , 0 0 , 0 0 , x y i n f o r m a t i o n a r e m a p p e d t o d [ 1 1 : 4 ] 2 . 2 0 - b i t m o d e i s c o m p a t i b l e w i t h b t 1 1 2 0 f o r m a t 2 0 - b i t m o d e
i t 6 6 1 2 1 f n w w w . i t e . c o m . t w n o v - 2 0 1 1 r e v : 0 . 9 9 2 5 / 3 9 1 6 / 2 0 / 2 4 - b i t yc b c r 4 2 2 w i t h em b e d d e d s y n c s ( b t a - t 1 0 0 4 f o r m a t ) th e b t a - t 1 0 0 4 f o r m a t i s s i m i l a r t o t h e p r e v i o u s f o r m a t e x c e p t t h e s a v a n d e a v p o s i t i o n s . yc b c r 4 : 2 : 2 1 6 - b i t y cbcr 4:2:2 20-bit y cbcr 4:2:2 24-bit p in name p ixel#2n p ixel#2n+1 p ixel#2n p ixel#2n+1 p ixel#2n p ixel#2n+1 d 0 g rounded g r o u n d e d g rounded g rounded y 0 y 0 d 1 g rounded g r o u n d e d g rounded g rounded y 1 y 1 d 2 g rounded g rounded y 0 y 0 y 2 y 2 d 3 g rounded g rounded y 1 y 1 y 3 y 3 d 4 y 0 y 0 y 2 y 2 y 4 y 4 d 5 y 1 y 1 y 3 y 3 y 5 y 5 d 6 y 2 y 2 y 4 y 4 y 6 y 6 d 7 y 3 y 3 y 5 y 5 y 7 y 7 d 8 y 4 y 4 y 6 y 6 y 8 y 8 d 9 y 5 y 5 y 7 y 7 y 9 y 9 d 10 y 6 y 6 y 8 y 8 y 1 0 y 10 d 11 y 7 y 7 y 9 y 9 y 1 1 y 11 d 12 g rounded g r o u n d e d g rounded g rounded c b0 c r0 d 13 g rounded g r o u n d e d g rounded g rounded c b1 c r1 d 14 g rounded g rounded c b0 c r0 c b2 c r2 d 15 g rounded g rounded c b1 c r1 c b3 c r3 d 16 c b0 c r0 c b2 c r2 c b4 c r4 d 17 c b1 c r1 c b3 c r3 c b5 c r5 d 18 c b2 c r2 c b4 c r4 c b6 c r6 d 19 c b3 c r3 c b5 c r5 c b7 c r7 d 20 c b4 c r4 c b6 c r6 c b8 c r8 d 21 c b5 c r5 c b7 c r7 c b9 c r9 d 22 c b6 c r6 c b8 c r8 c b10 c r10 d 23 c b7 c r7 c b9 c r9 c b11 c r11 h sync g rounded g rounded g rounded g rounded g rounded g rounded v sync g rounded g rounded g rounded g rounded g rounded g rounded d e g rounded g rounded g rounded g rounded g rounded g rounded t able 6. mappings of ycbcr422 with embedded syncs ( bta-t1004 format)
i t 6 6 1 2 1 f n w w w . i t e . c o m . t w n o v - 2 0 1 1 r e v : 0 . 9 9 2 6 / 3 9 8 / 1 0 / 1 2 - b i t yc b c r 4 2 2 w i t h e m b e d d e d s y n c s t h i s f o r m a t i s a n o t h e r v a r i a t i o n o f t h e y c b c r f o r m a t s . t h e b u s w i d t h i s f u r t h e r r e d u c e d b y h a l f c o m p a r e d f r o m t h e p r e v i o u s y c b c r 4 : 2 : 2 f o r m a t s , t o e i t h e r 8 - b i t , 1 0 - b i t o r 1 2 - b i t . t o c o m p e n s a t e f o r t h e h a l v i n g o f d a t a b u s , p c l k i s d o u b l e d . w i t h t h e d o u b l e - r a t e i n p u t c l o c k , l u m i n a n c e c h a n n e l ( y ) a n d c h r o m a c h a n n e l s ( c b o r c r ) a r e a l t e r n a t e d . y c b c r 4 : 2 : 2 8 - b i t ycbcr 4:2:2 10-bit ycbcr 4:2:2 12-bit pin name 1st pclk 2nd pclk 1st pclk 2nd pclk pixel#2n pixel#2n+1 d0 grounded grounded grounded grounded grounded ground ed d1 grounded grounded grounded grounded grounded ground ed d2 grounded grounded grounded grounded grounded ground ed d3 grounded grounded grounded grounded grounded ground ed d4 grounded grounded grounded grounded c0 y0 d5 grounded grounded grounded grounded c1 y1 d6 grounded grounded c0 y0 c2 y2 d7 grounded grounded c1 y1 c3 y3 d8 c0 y0 c2 y2 c4 y4 d9 c1 y1 c3 y3 c5 y5 d10 c2 y2 c4 y4 c6 y6 d11 c3 y3 c5 y5 c7 y7 d12 c4 y4 c6 y6 c8 y9 d13 c5 y5 c7 y7 c9 y9 d14 c6 y6 c8 y8 c10 y10 d15 c7 y7 c9 y9 c11 y11 d16 grounded grounded grounded grounded grounded ground ed d17 grounded grounded grounded grounded grounded ground ed d18 grounded grounded grounded grounded grounded ground ed d19 grounded grounded grounded grounded grounded ground ed d20 grounded grounded grounded grounded grounded ground ed d21 grounded grounded grounded grounded grounded ground ed d22 grounded grounded grounded grounded grounded ground ed d23 grounded grounded grounded grounded grounded ground ed hsync grounded grounded grounded grounded grounded grounded vsync grounded grounded grounded grounded grounded grounded de grounded grounded grounded grounded grounded grounded table 7. mappings of 8/10/12-bit ycbcr422 with embe dded syncs
i t 6 6 1 2 1 f n w w w . i t e . c o m . t w n o v - 2 0 1 1 r e v : 0 . 9 9 2 7 / 3 9 f i g u r e 9 . 8 / 1 0 / 1 2 - b i t y c b c r 4 2 2 w i t h e m b e d d e d s y n c s n o t e : 1 . f f , 0 0 , 0 0 , x y i n f o r m a t i o n a r e m a p p e d t o d [ 1 5 : 8 ] 2 . 8 - b i t m o d e i s c o m p a t i b l e w i t h c c i r 6 5 6 f o r m a t 3 . 1 0 - b i t m o d e i s c o m p a t i b l e w i t h b t 1 1 2 0 f o r m a t 1 0 - b i t m o d e
i t 6 6 1 2 1 f n w w w . i t e . c o m . t w n o v - 2 0 1 1 r e v : 0 . 9 9 2 8 / 3 9 8 / 1 0 / 1 2 - b i t yc b c r 4 2 2 w i t h se p a r a t e s y n c s th i s f o r m a t i s s i m p l y t h e v a r i a t i o n o f p r e v i o u s l y m e n t i o n e d o n e p l u s s e p a r a t e s y n c s . yc b c r 4 : 2 : 2 8 - b i t ycbcr 4:2:2 10-bit ycbcr 4:2:2 12-bit p in name 1st pclk 2nd pclk 1st pclk 2nd pclk pixel#2n pixel#2n+1 d 0 grounded grounded grounded grounded grounded ground ed d 1 grounded grounded grounded grounded grounded ground ed d 2 grounded grounded grounded grounded grounded ground ed d 3 grounded grounded grounded grounded grounded ground ed d 4 grounded grounded grounded grounded c0 y0 d 5 grounded grounded grounded grounded c1 y1 d 6 grounded grounded c0 y0 c2 y2 d 7 grounded grounded c1 y1 c3 y3 d 8 c0 y0 c2 y2 c4 y4 d 9 c1 y1 c3 y3 c5 y5 d 10 c2 y2 c4 y4 c6 y6 d 11 c3 y3 c5 y5 c7 y7 d 12 c4 y4 c6 y6 c8 y9 d 13 c5 y5 c7 y7 c9 y9 d 14 c6 y6 c8 y8 c10 y10 d 15 c7 y7 c9 y9 c11 y11 d 16 grounded grounded grounded grounded grounded grounded d 17 grounded grounded grounded grounded grounded grounded d 18 grounded grounded grounded grounded grounded grounded d 19 grounded grounded grounded grounded grounded grounded d 20 grounded grounded grounded grounded grounded grounded d 21 grounded grounded grounded grounded grounded grounded d 22 grounded grounded grounded grounded grounded grounded d 23 grounded grounded grounded grounded grounded grounded h sync hsync hsync hsync v sync vsync vsync vsync d e de de de table 8. mappings of 8/10/12-bit ycbcr422 with sepa rate syncs
i t 6 6 1 2 1 f n w w w . i t e . c o m . t w n o v - 2 0 1 1 r e v : 0 . 9 9 2 9 / 3 9 t h e i t 6 6 1 2 1 s u p p o r t s a n o t h e r i o m a p p i n g m e t h o d o f y c b c r 4 : 2 : 2 f o r m a t s w h i c h w e c a l l n o n - s e q u e n t i a l i o m o d e . t h e o n l y d i f f e r e n c e b e t w e e n t h e s e t w o m o d e s i s t h e y / c b / c r d a t a m a p p i n g s e q u e n c e o f t h e i o p i n . t h e f o l l o w i n g t a b l e s s h o w t h e d i f f e r e n t m a p p i n g s o f t h e s e t w o m o d e s . n o n - s e q u e n t i a l i o m o d e o f 1 6 / 2 0 / 2 4 - b i t y c b c r 4 2 2 ycbcr 4:2:2 16-bit ycbcr 4:2:2 20-bit ycbcr 4:2:2 24-bit pin name pixel#2n pixel#2n+1 pixel#2n pixel#2n+1 pixel#2n pixel#2n+1 d0 grounded g r o u n d e d grounded grounded y 0 y0 d1 grounded g r o u n d e d grounded grounded y 1 y1 d2 grounded grounded y 0 y 0 y 2 y2 d3 grounded grounded y 1 y 1 y 3 y3 d4 grounded g r o u n d e d grounded grounded cb0 cr0 d5 grounded g r o u n d e d grounded grounded cb1 cr1 d6 grounded grounded cb0 cr0 cb2 cr2 d7 grounded grounded cb1 cr1 cb3 cr3 d8 y 0 y 0 y 2 y 2 y 4 y4 d9 y 1 y 1 y 3 y 3 y 5 y5 d10 y 2 y 2 y 4 y 4 y 6 y6 d11 y 3 y 3 y 5 y 5 y 7 y7 d12 y 4 y 4 y 6 y 6 y 8 y8 d13 y 5 y 5 y 7 y 7 y 9 y9 d14 y 6 y 6 y 8 y 8 y 1 0 y10 d15 y 7 y 7 y 9 y 9 y 1 1 y11 d16 cb0 cr0 cb2 cr2 cb4 cr4 d17 cb1 cr1 cb3 cr3 cb5 cr5 d18 cb2 cr2 cb4 cr4 cb6 cr6 d19 cb3 cr3 cb5 cr5 cb7 cr7 d20 cb4 cr4 cb6 cr6 cb8 cr8 d21 cb5 cr5 cb7 cr7 cb9 cr9 d22 cb6 cr6 cb8 cr8 cb10 cr10 d23 cb7 cr7 cb9 cr9 cb11 cr11 h s y n c h s y n c h s y n c h s y n c h s y n c h s y n c hsync v s y n c v s y n c v s y n c v s y n c v s y n c v s y n c vsync d e d e d e d e d e d e de t a b l e 9 . m a p p i n g s o f 1 6 / 2 0 / 2 4 - b i t y c b c r 4 2 2 n o n - s e q u e n t i a l i o m o d e
i t 6 6 1 2 1 f n w w w . i t e . c o m . t w n o v - 2 0 1 1 r e v : 0 . 9 9 3 0 / 3 9 non-sequential io mode of 8/10/12-bit ycbcr422 ycbcr 4:2:2 8-bit ycbcr 4:2:2 10-bit ycbcr 4:2:2 12-bit pin name 1st pclk 2nd pclk 1st pclk 2nd pclk pixel#2n pixel#2n+1 d0 grounded grounded grounded grounded c0 y0 d1 grounded grounded grounded grounded c1 y1 d2 grounded grounded c0 y0 c2 y2 d3 grounded grounded c1 y1 c3 y3 d4 grounded grounded grounded grounded grounded ground ed d5 grounded grounded grounded grounded grounded ground ed d6 grounded grounded grounded grounded grounded ground ed d7 grounded grounded grounded grounded grounded ground ed d8 c0 y0 c2 y2 c4 y4 d9 c1 y1 c3 y3 c5 y5 d10 c2 y2 c4 y4 c6 y6 d11 c3 y3 c5 y5 c7 y7 d12 c4 y4 c6 y6 c8 y9 d13 c5 y5 c7 y7 c9 y9 d14 c6 y6 c8 y8 c10 y10 d15 c7 y7 c9 y9 c11 y11 d16 grounded grounded grounded grounded grounded ground ed d17 grounded grounded grounded grounded grounded ground ed d18 grounded grounded grounded grounded grounded ground ed d19 grounded grounded grounded grounded grounded ground ed d20 grounded grounded grounded grounded grounded ground ed d21 grounded grounded grounded grounded grounded ground ed d22 grounded grounded grounded grounded grounded ground ed d23 grounded grounded grounded grounded grounded ground ed hsync grounded grounded grounded grounded grounded grounded vsync grounded grounded grounded grounded grounded grounded de grounded grounded grounded grounded grounded grounded t a b l e 1 0 . m a p p i n g s o f 8 / 1 0 / 1 2 - b i t y c b c r 4 2 2 n o n - s e q u e n t i a l i o m o d e i n a d d i t i o n a l t o t h e p r e v i o u s i n p u t f o r m a t s , t h e r e a r e t h r e e o p t i o n s c a n b e s u p p o r t e d b y t h e i t 6 6 1 2 1 . d e - o n l y o p t i o n c a n b e u s e d f o r t h o s e i n p u t f o r m a t s w i t h o u t h / v s y n c i n f o r m a t i o n . d u a l - e d g e t r i g g e r i n g w i t h h a l f b u s w i d t h o p t i o n c a n b e u s e d t o r e d u c e t h e n e c e s s a r y b u s w i d t h a n d d u a l - e d g e t r i g g e r i n g w i t h h a l f p i x e l c l o c k o p t i o n a l l o w s h a l f i n p u t p i x e l c l o c k . n o a l l t h e i n p u t f o r m a t s l i s t e d a b o v e c a n s u p p o r t t h r e e o p t i o n s a n d p l e a s e r e f e r t o t h e i t 6 6 1 2 1 p r o g r a m m i n g g u i d e f o r m o r e i n f o r m a t i o n . s o m e e x a m p l e s s h o w n b e l o w a r e t h e c o r r e s p o n d i n g t i m i n g r e l a t i o n s w h e n t h e s e o p t i o n s a r e e n a b l e d .
i t 6 6 1 2 1 f n w w w . i t e . c o m . t w n o v - 2 0 1 1 r e v : 0 . 9 9 3 1 / 3 9 d e- o n l y o p t i o n : u s e 2 4 - b i t r g b / yc b c r 4 4 4 ( d e- o n l y m o d e ) a s e x a m p l e pin n a m e rgb ycbcr d0 b0 cb0 d1 b1 cb1 d2 b2 cb2 d3 b3 cb3 d4 b4 cb4 d5 b5 cb5 d6 b6 cb6 d7 b7 cb7 d8 g0 y0 d9 g1 y1 d 1 0 g2 y2 d 1 1 g3 y3 d 1 2 g4 y4 d 1 3 g5 y5 d 1 4 g6 y6 d 1 5 g7 y7 d 1 6 r0 cr0 d 1 7 r1 cr1 d 1 8 r2 cr2 d 1 9 r3 cr3 d 2 0 r4 cr4 d 2 1 r5 cr5 d 2 2 r6 cr6 d 2 3 r7 cr7 hsync grounded grounded v s ync grounded grounded d e de de table 11. mappings of 24-bit rgb/ycbcr444 (de-only mode)
i t 6 6 1 2 1 f n w w w . i t e . c o m . t w n o v - 2 0 1 1 r e v : 0 . 9 9 3 2 / 3 9 dual-edge triggering with half bus width: use 12-bi t rgb/ycbcr444 format as example rgb ycbcr pin name 1st edge 2nd edge 1st edge 2nd edge d0 b0 g4 cb0 y4 d1 b1 g5 cb1 y5 d2 b2 g6 cb2 y6 d3 b3 g7 cb3 y7 d4 b4 r0 cb4 cr0 d5 b5 r1 cb5 cr1 d6 b6 r2 cb6 cr2 d7 b7 r3 cb7 cr3 d8 g0 r4 y0 cr4 d9 g1 r5 y1 cr5 d10 g2 r6 y2 cr6 d11 g3 r7 y3 cr7 d12 grounded grounded grounded grounded d13 grounded grounded grounded grounded d14 grounded grounded grounded grounded d15 grounded grounded grounded grounded d16 grounded grounded grounded grounded d17 grounded grounded grounded grounded d18 grounded grounded grounded grounded d19 grounded grounded grounded grounded d20 grounded grounded grounded grounded d21 grounded grounded grounded grounded d22 grounded grounded grounded grounded d23 grounded grounded grounded grounded hsync hsync hsync vsync vsync vsync de de de t a b l e 1 2 . m a p p i n g s o f 1 2 - b i t r g b / y c b c r 4 4 4 d u a l - e d g e t r i g g e r i n g ( s e p a r a t e s y n c s ) d [ 2 3 : 1 2 ]
i t 6 6 1 2 1 f n w w w . i t e . c o m . t w n o v - 2 0 1 1 r e v : 0 . 9 9 3 3 / 3 9 d u a l - ed g e t r i g g e r i n g w i t h h a l f p i x e l c l o c k : e x a m p l e 1 : 2 4 - b i t r g b / y c b c r 4 4 4 w i t h s e p a r a t e s y n c s a n d d u a l - e d g e t r i g g e r i n g p i n n a m e rgb ycbcr d0 b0 cb0 d1 b1 cb1 d2 b2 cb2 d3 b3 cb3 d4 b4 cb4 d5 b5 cb5 d6 b6 cb6 d7 b7 cb7 d8 g0 y0 d9 g1 y1 d10 g2 y2 d11 g3 y3 d12 g4 y4 d13 g5 y5 d14 g6 y6 d15 g7 y7 d16 r0 cr0 d17 r1 cr1 d18 r2 cr2 d19 r3 cr3 d20 r4 cr4 d21 r5 cr5 d22 r6 cr6 d23 r7 cr7 hsync hsync hsync vsync vsync vsync de de de table 13. mappings of 24-bit rgb/ycbcr444 dual-edge triggering (separate syncs)
i t 6 6 1 2 1 f n w w w . i t e . c o m . t w n o v - 2 0 1 1 r e v : 0 . 9 9 3 4 / 3 9 e x a m p l e 2 : 1 6 / 2 0 / 2 4 - b i t y c b c r 4 2 2 w i t h s e p a r a t e s y n c s u s i n g d u a l - e d g e t r i g g e r i n g ycbcr 4:2:2 16-bit ycbcr 4:2:2 20-bit ycbcr 4:2:2 24-bit pin name 1st edge 2nd edge 1st edge 2nd edge 1st edge 2nd edge d0 grounded grounded grounded grounded y0 y0 d1 grounded grounded grounded grounded y1 y1 d2 grounded grounded y0 y0 y2 y2 d3 grounded grounded y1 y1 y3 y3 d4 y0 y0 y2 y2 y4 y4 d5 y1 y1 y3 y3 y5 y5 d6 y2 y2 y4 y4 y6 y6 d7 y3 y3 y5 y5 y7 y7 d8 y4 y4 y6 y6 y8 y8 d9 y5 y5 y7 y7 y9 y9 d10 y6 y6 y8 y8 y10 y10 d11 y7 y7 y9 y9 y11 y11 d12 grounded grounded grounded grounded cb0 cr0 d13 grounded grounded grounded grounded cb1 cr1 d14 grounded grounded cb0 cr0 cb2 cr2 d15 grounded grounded cb1 cr1 cb3 cr3 d16 cb0 cr0 cb2 cr2 cb4 cr4 d17 cb1 cr1 cb3 cr3 cb5 cr5 d18 cb2 cr2 cb4 cr4 cb6 cr6 d19 cb3 cr3 cb5 cr5 cb7 cr7 d20 cb4 cr4 cb6 cr6 cb8 cr8 d21 cb5 cr5 cb7 cr7 cb9 cr9 d22 cb6 cr6 cb8 cr8 cb10 cr10 d23 cb7 cr7 cb9 cr9 cb11 cr11 hsync hsync hsync hsync hsync hsync hsync vsync vsync vsync vsync vsync vsync vsync de de de de de de de t a b l e 1 4 . m a p p i n g s o f 1 6 / 2 0 / 2 4 - b i t y c b c r 4 2 2 d u a l - e d g e t r i g g e r i n g ( s e p a r a t e s y n c s )
i t 6 6 1 2 1 f n w w w . i t e . c o m . t w n o v - 2 0 1 1 r e v : 0 . 9 9 3 5 / 3 9 e x a m p l e 3 : 8 / 1 0 / 1 2 - b i t y c b c r 4 2 2 w i t h e m b e d d e d s y n c s u s i n g d u a l - e d g e t r i g g e r i n g ycbcr 4:2:2 8-bit ycbcr 4:2:2 10-bit ycbcr 4:2:2 12-bit pin name 1st edge 2nd edge 1st edge 2nd edge 1st edge 2nd edge d0 grounded grounded grounded grounded grounded ground ed d1 grounded grounded grounded grounded grounded ground ed d2 grounded grounded grounded grounded grounded ground ed d3 grounded grounded grounded grounded grounded ground ed d4 grounded grounded grounded grounded c0 y0 d5 grounded grounded grounded grounded c1 y1 d6 grounded grounded c0 y0 c2 y2 d7 grounded grounded c1 y1 c3 y3 d8 c0 y0 c2 y2 c4 y4 d9 c1 y1 c3 y3 c5 y5 d10 c2 y2 c4 y4 c6 y6 d11 c3 y3 c5 y5 c7 y7 d12 c4 y4 c6 y6 c8 y9 d13 c5 y5 c7 y7 c9 y9 d14 c6 y6 c8 y8 c10 y10 d15 c7 y7 c9 y9 c11 y11 d16 grounded grounded grounded grounded grounded ground ed d17 grounded grounded grounded grounded grounded ground ed d18 grounded grounded grounded grounded grounded ground ed d19 grounded grounded grounded grounded grounded ground ed d20 grounded grounded grounded grounded grounded ground ed d21 grounded grounded grounded grounded grounded ground ed d22 grounded grounded grounded grounded grounded ground ed d23 grounded grounded grounded grounded grounded ground ed hsync grounded grounded grounded grounded grounded grounded vsync grounded grounded grounded grounded grounded grounded de grounded grounded grounded grounded grounded grounded t a b l e 1 5 . m a p p i n g s o f 8 / 1 0 / 1 2 - b i t y c b c r 4 2 2 d u a l - e d g e t r i g g e r i n g ( e m b e d d e d s y n c s )
i t 6 6 1 2 1 f n w w w . i t e . c o m . t w n o v - 2 0 1 1 r e v : 0 . 9 9 3 6 / 3 9 sy s t e m d e s i g n c o n s i d e r a t i o n a s a h i g h - p e r f o r m a n c e r e c e i v e r / t r a n s m i t t e r , i t e ? s r x / t x i s c a p a b l e o f r e c e i v i n g / t r a n s m i t t i n g t h o s e s i g n a l s t h a t a r e a t t e n u a t e d a n d d e g r a d e d b y t h e h d m i c a b l e s . t h e s e s i g n a l s a r e u s u a l l y v e r y s m a l l i n a m p l i t u d e s i n a d d i t i o n t o t h e d i s t o r t i o n t h a t t h e c a b l e i n f l i c t s o n t h e m . t h e a n a l o g f r o n t - e n d o f i t e ? s r x / t x i s d e s i g n e d t o c o m b a t e n v i r o n m e n t n o i s e s a s w e l l a s i n t e r f e r e n c e t o s o m e d e g r e e . h o w e v e r , t o g e t t h e o p t i m u m p e r f o r m a n c e t h e s y s t e m d e s i g n e r s s h o u l d f o l l o w t h e g u i d e l i n e b e l o w w h e n d e s i g n i n g t h e a p p l i c a t i o n c i r c u i t s a n d p c b l a y o u t . h d m i d i f f e r e n t i a l s i g n a l t h e c h a r a c t e r i s t i c i m p e d a n c e o f a l l d i f f e r e n t i a l p c b t r a c e s ( r x 2 p / m , r x 1 p / m , r x 0 p / m , a n d r x c p / m ) s h o u l d b e k e p t 1 0 0 _ a l l t h e w a y f r o m t h e h d m i c o n n e c t o r t o i t e ? s r x / t x . t h i s i s v e r y c r u c i a l t o t h e s y s t e m p e r f o r m a n c e a t h i g h s p e e d s . w h e n r o u t i n g t h e s e 4 d i f f e r e n t i a l t r a n s m i s s i o n l i n e s ( 8 s i n g l e - e n d e d l i n e s i n t o t a l ) , t h e f o l l o w i n g g u i d e l i n e s s h o u l d b e f o l l o w e d : 1 . t h e s i g n a l s t r a c e s s h o u l d b e o n t h e o u t s i d e l a y e r s ( e . g . t o p l a y e r ) w h i l e b e n e a t h i t t h e r e s h o u l d b e a c o n t i n u o u s g r o u n d p l a n e i n o r d e r t o m a i n t a i n t h e c a l l e d m i c r o - s t r i p s t r u c t u r e , g i v i n g s t a b l e a n d w e l l - d e f i n e d c h a r a c t e r i s t i c i m p e d a n c e s . 2 . c o r n e r i n g , t h r o u g h h o l e s , c r o s s i n g a n d a n y i r r e g u l a r s i g n a l r o u t i n g s h o u l d b e a v o i d e d s o a s t o p r e v e n t f r o m d i s r u p t i n g t h e e m f i e l d a n d c r e a t i n g d i s c o n t i n u i t y i n c h a r a c t e r i s t i c i m p e d a n c e . 3 . i t e ? s r x / t x s h o u l d b e p l a c e d a s c l o s e t o t h e h d m i c o n n e c t o r a s p o s s i b l e . s i n c e t h e t m d s s i g n a l p i n s o f i t e ? s r x / t x p e r f e c t l y m a t c h t h e o r d e r o f t h e c o n n e c t o r p i n s , i t i s v e r y c o n v e n i e n t t o r o u t e t h e s i g n a l d i r e c t l y i n t o t h e c h i p , w i t h o u t t h r o u g h h o l e s o r a n g l i n g . 4 . c a r e f u l l y c h o o s e t h e w i d t h a n d s p a c i n g o f t h e d i f f e r e n t i a l t r a n s m i s s i o n l i n e s a s t h e i r c h a r a c t e r i s t i c i m p e d a n c e d e p e n d s o n v a r i o u s p a r a m e t e r s o f t h e p c b : t r a c e w i d t h , t r a c e s p a c i n g , c o p p e r t h i c k n e s s , d i e l e c t r i c c o n s t a n t , d i e l e c t r i c t h i c k n e s s , e t c . c a r e f u l 3 d e m s i m u l a t i o n i s t h e b e s t w a y t o d e r i v e a c o r r e c t d i m e n s i o n t h a t e n a b l e s n o m i n a l 1 0 0 _ d i f f e r e n t i a l i m p e d a n c e . p l e a s e c o n t a c t u s d i r e c t l y f o r t e c h n i c a l s u p p o r t o f t h i s i s s u e . 5 . t h e s e n s i t i v e h d m i d i f f e r e n t i a l s i g n a l s s h o u l d b e t a k e n w h e n r o u t i n g . t o r e d u c e t h e d i f f e r e n t i a l u n b a l a n c e d e f f e c t , i t i s r e c o m m e n d e d t o s e p a r a t e a t l e a s t 3 t i m e s t h e d i e l e c t r i c t h i c k n e s s b e t w e e n t h e s i g n a l l a y e r a n d t h e r e f e r e n c e l a y e r t o a n y o t h e r a d j a c e n t s i g n a l o r g n d p l a n e t o r e d u c e n o i s e i n f e r e n c e a n d j i t t e r . ( o r 2 5 m i l s i s e n o u g h s p a c e i n a l m o s t p c b s t a c k ) e s d c o n s i d e r a t i o n s p e c i a l c a r e s h o u l d b e t a k e n w h e n a d d i n g d i s c r e t e e s d d e v i c e s t o a l l d i f f e r e n t i a l p c b t r a c e s ( r x 2 p / m , r x 1 p / m , r x 0 p / m , a n d r x c p / m ) . i t e ? s r x / t x i s d e s i g n e d t o p r o v i d e e s d p r o t e c t i o n f o r u p t o 2 k v a t t h e s e p i n s . a d d i n g d i s c r e t e e s d d i o d e s c o u l d e n h a n c e t h e e s d c a p a b i l i t y , b u t a t t h e s a m e t i m e w i l l i n e v i t a b l y a d d c a p a c i t i v e l o a d s , t h e r e f o r e d e g r a d e t h e e l e c t r i c a l p e r f o r m a n c e a t
i t 6 6 1 2 1 f n w w w . i t e . c o m . t w n o v - 2 0 1 1 r e v : 0 . 9 9 3 7 / 3 9 high speeds. if not chosen carefully, these diodes coupled with less-than-optimal layout would prevent the system from passing the sink tmds-diffe rential impedance test in the hdmi compliance test (test id 8-8). besides, most genera l-purpose esd diodes are relatively large in size, forcing the high-speed differential lines to corner several times and therefore introducing severe reflection. carefully choosing an esd diode that's designed for hdmi signaling could lead to a minimum loading as well as an optimized layout . commercially available devices such as semtech's rclamp0524p that take into consideration of all aspects are recommended. a layout example is shown in fig. 16, with referenced fr4 pc b structure included. note that the esd diodes should be placed as close to the hdmi connec tors as possible to yield the best esd performances.
i t 6 6 1 2 1 f n w w w . i t e . c o m . t w n o v - 2 0 1 1 r e v : 0 . 9 9 3 8 / 3 9 device vcc vcc vss via to gnd 0 . 0 1 u f l o w e s l d e c o u p l i n g c a p a c i t o r 3 . a v o i d p l a c i n g t h e c a p a c i t o r o n t h e o p p o s i t e s i d e o f t h e p c b o a r d f r o m t h e h d m i i c . 4 . i t i s r e c o m m e n d e d t o a d d f e r r i t e b e a d s f o r a n a l o g p o w e r s . e x . p v d d , p v c c , a v d d e t c ? 5 . s h o r t e r p o w e r l o o p m a k e s b e t t e r p e r f o r m a n c e . h i g h s p e e d d i g i t a l i n p u t / o u t p u t s i g n a l s ( b o t h d a t a a n d c l o c k s ) 1 . t o o b t a i n g o o d s i g n a l q u a l i t y a n d a v o i d e m i i s s u e , 4 - l a y r e s p c b s t a c k s a r e r e c o m m e n d e d . 2 . t r y t o m i n i m i z e t h e t r a c e l e n g t h t h a t t h e d i g i t a l o u t p u t s h a v e t o d r i v e . 3 . k e e p t h e s e h i g h s p e e d s i g n a l s r e f e r t o a c o n t i n u e g n d o r p o w e r p l a n e , n o g n d o r p o w e r s l o t b r e a k t h e r e t u r n i n g c u r r e n t p a t h . 4 . i t ? s r e c o m m e n d e d t o a d d a s e r i e s r e s i s t o r o f v a l u e 3 3 o h m t o s u p p r e s s r e f l e c t i o n s , r e d u c e e m i , a n d r e d u c e t h e c u r r e n t s p i k e s . t h e s e s e r i e s r e s i s t o r s s h o u l d b e p l a c e a s c l o s e t o t h e d r i v i n g p i n s a s p o s s i b l e . 5 . i f p o s s i b l e , t r y t o p l a c e i t e ? s r x / t x a n d r e l a t e d ? s c a l a r i c ? o n t h e s a m e p c b s i d e a n d r o u t e t h e s e h i g h s p e e d s i g n a l s n o t t o t h r o u g h v i a s t o g e t t h e b e t t e r s i g n a l q u a l i t y . 6 . t h e s e n s i t i v e c l o c k ( p c l k ) s i g n a l s s h o u l d b e t a k e n w h e n r o u t i n g . t o r e d u c e t h e c r o s s t a l k e f f e c t , i t i s r e c o m m e n d e d t o s e p a r a t e a t l e a s t 2 t i m e s t h e m a x i m u m d i e l e c t r i c t h i c k n e s s b e t w e e n t h e s i g n a l l a y e r a n d t h e r e f e r e n c e l a y e r t o a n y o t h e r a d j a c e n t s i g n a l t o r e d u c e n o i s e i n f e r e n c e a n d j i t t e r .
i t 6 6 1 2 1 f n w w w . i t e . c o m . t w n o v - 2 0 1 1 r e v : 0 . 9 9 3 9 / 3 9 package dimensions f i g u r e 1 7 . 6 4 - p i n q f n p a c k a g e d i m e n s i o n s

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