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1 ps8626d 05/11/05 vee clk_en ck_sel clk0 vee clk1 vcc vcc q0 nq0 nc q1 nq1 vcc 1 2 3 4 5 6 7 14 13 12 11 10 9 8 vee clk_en ck_sel clk0 nc/vee clk1 nc/vee nc/vee nc/vcc vcc q0 nq0 vcc q1 nq1 q2 nq2 vcc q3 nq3 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 pin configuration pi6c41204/a description pi6c4120x is a high-performance lvcmos or lvttl to lvpecl clock buffer. the pi6c41204 is a 4 output version with 2 select- able inputs, pin compatible with ics8535-01. pi6c41204a is the enhanced version with extra power and ground pins to minimize noise and jitter. the pi6c41202 is similar to the pi6c41204 except it has two outputs. 20-pin features ? up to four lvpecl outputs ? selectable clk0 or clk1 inputs ? lvcmos or lvttl input level ? 30ps max output skew ? 150ps max part-to-part skew ? 1.9ns max propagation delay ? 266 mhz output frequency ? packaging (pb-free & green available): -14-pin tssop - 20-pin tssop 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 pi6c41202 pi6c41204 pi6c41204a lvcmos to lvpecl driver 14-pin d le clk_sel clk1 clk0 clk_en q0 nq0 q q1 nq1 q2 nq2 q3 nq3 0 1 d le clk_sel clk1 clk0 clk_en q0 nq0 q q1 nq1 0 1 block diagram pi6c41202 block diagram pi6c41204/a pin configuration pi6c41202
2 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1 2345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 12345678901 2 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 ps8626d 05/11/05 pi6c4120x lvcmos to lvpecl driver r e b m u ne m a ne p y tn o i t p i r c s e d 8 , 7 , 5 , 1e e vr e w o p. d n u o r g 2n e _ k l ct u p n ip u l l u p w o l l o f s t u p t u o k c o l c , h g i h n e h w . e l b a n e k c o l c g n i z i n o r h c n y s r o s o m c v l . h g i h e r a q n , w o l e r a q , w o l n e h w . t u p n i k c o l c . l e v e l t u p n i l t t v l 3l e s _ k l ct u p n in w o d l l u p s o m c v l 1 k l c = h g i h , 0 k l c = w o l : t u p n i t c e l e s k c o l c l e v e l t u p n i l t t v l r o 40 k l ct u p n in w o d l l u p. t u p n i k c o l c l t t v l r o s o m c v l 61 k l ct u p n in w o d l l u p. l e v e l t u p n i l t t v l r o s o m c v l , 3 1 , 0 1 , 9 8 1 c c vr e w o py l p p u s v 3 . 3 2 1 , 1 13 q , 3 q nt u p t u o. r i a p t u p t u o l c e p v l 5 1 , 4 12 q , 2 q nt u p t u o. r i a p t u p t u o l c e p v l 7 1 , 6 11 q , 1 q nt u p t u o. r i a p t u p t u o l c e p v l 0 2 , 9 10 q , 0 q nt u p t u o. r i a p t u p t u o l c e p v l table 1a. pin description for pi6c41204 table 1b. pin description for pi6c41204a r e b m u ne m a ne p y tn o i t p i r c s e d 1e e vr e w o p. d n u o r g 2n e _ k l ct u p n ip u l l u p w o l l o f s t u p t u o k c o l c , h g i h n e h w . e l b a n e k c o l c g n i z i n o r h c n y s r o s o m c v l . h g i h e r a q n , w o l e r a q , w o l n e h w . t u p n i k c o l c . l e v e l t u p n i l t t v l 3l e s _ k l ct u p n in w o d l l u p s o m c v l 1 k l c = h g i h , 0 k l c = w o l : t u p n i t c e l e s k c o l c . l e v e l t u p n i l t t v l r o 40 k l ct u p n in w o d l l u p. t u p n i k c o l c l t t v l r o s o m c v l 61 k l ct u p n in w o d l l u p. l e v e l t u p n i l t t v l r o s o m c v l 9 , 8 , 7 , 5c nd e s u n ut c e n n o c o n 8 1 , 3 1 , 0 1c c vr e w o py l p p u s v 3 . 3 2 1 , 1 13 q , 3 q nt u p t u o. r i a p t u p t u o l c e p v l 5 1 , 4 12 q , 2 q nt u p t u o. r i a p t u p t u o l c e p v l 7 1 , 6 11 q , 1 q nt u p t u o. r i a p t u p t u o l c e p v l 0 2 , 9 10 q , 0 q nt u p t u o. r i a p t u p t u o l c e p v l
3 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1 2345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 12345678901 2 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 ps8626d 05/11/05 pi6c4120x lvcmos to lvpecl driver r e b m u ne m a ne p y tn o i t p i r c s e d 5 , 1e e vr e w o p. d n u o r g 2n e _ k l ct u p n ip u l l u p k c o l c w o l l o f s t u p t u o k c o l c , h g i h n e h w . e l b a n e k c o l c g n i z i n o r h c n y s l t t v l r o s o m c v l . h g i h e r a q n , w o l e r a q , w o l n e h w . t u p n i . l e v e l t u p n i 3l e s _ k l ct u p n in w o d l l u p r o s o m c v l 1 k l c = h g i h , 0 k l c = w o l : t u p n i t c e l e s k c o l c . l e v e l t u p n i l t t v l 40 k l ct u p n in w o d l l u p. t u p n i k c o l c l t t v l r o s o m c v l 61 k l ct u p n in w o d l l u p. l e v e l t u p n i l t t v l r o s o m c v l 4 1 , 8 , 7c c vr e w o py l p p u s v 3 . 3 0 1 , 91 q , 1 q nt u p t u o. r i a p t u p t u o l c e p v l 3 1 , 2 10 q , 0 q nt u p t u o. r i a p t u p t u o l c e p v l table 1c. pin description for pi6c41202 l o b m y sr e t e m a r a ps n o i t i d n o c t s e t. n i m. p y t. x a ms t i n u c n i e c n a t i c a p a c t u p n i , 0 k l c 1 k l c 2 . 3 f p n e _ k l c l e s _ k l c 7 . 2 r p u l l u p r o t s i s e r p u l l u p t u p n i0 8 m h o k r n w o d l l u p n w o d l l u p t u p n i r o t s i s e r 0 8 table 2. pin characteristics
4 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1 2345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 12345678901 2 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 ps8626d 05/11/05 pi6c4120x lvcmos to lvpecl driver s t u p n is t u p t u o n e _ k l cl e s _ k l ce c r u o s d e t c e l e s* 3 q u r h t 0 q* 3 q n u r h t 0 q n 00 0 k l cw o l ; d e l b a s i dh g i h ; d e l b a s i d 01 1 k l cw o l ; d e l b a s i dh g i h ; d e l b a s i d 10 0 k l cd e l b a n ed e l b a n e 11 1 k l cd e l b a n ed e l b a n e table 3a. control input function table after clk_en switches, the clock outputs are disabled or enabled following a rising and falling input clock edge as shown in figure1. in the active mode, the state of the outputs are a function of the clk0 and clk1 inputs as described in table 3b. disabled enabled clk0, clk1 clk_en nq0 - nq3* q0 - q3* figure 1. clk_en timing diagram table 3b. clock input function table s t u p n is t u p t u o 1 k l c r o 0 k l c* 3 q u r h t 0 q* 3 q n u r h t 0 q n 0w o lh g i h 1h g i hw o l note: *pi6c41204 and pi6c41204a have four differential outputs. q0 through q3 and nq0 through nq3. pi6c41202 has two differential outputs. q0 through q1 and nq0 through nq1.
5 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1 2345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 12345678901 2 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 ps8626d 05/11/05 pi6c4120x lvcmos to lvpecl driver table 4b. lvcmos/lvttl dc characteristics, (v cc = 3.3v 5%, t a = 0c to +70c) l o b m y sr e t e m a r a ps n o i t i d n o c t s e t. n i m. p y t. x a ms t i n u v h i e g a t l o v h g i h t u p n i 1 k l c , 0 k l c25 6 7 . 3 v n e _ k l c l e s _ k l c 25 6 7 . 3 v l i e g a t l o v w o l t u p n i 1 k l c , 0 k l c3 . 0 ?8 . 0 n e _ k l c l e s _ k l c 3 . 0 ?8 . 0 i h i t n e r r u c h g i h t u p n i 1 k l c , 0 k l c l e s _ k l c v n i =v c c v 5 6 4 . 3 =0 5 1 a n e _ k l cv n i =v c c v 5 6 4 . 3 =5 i l i t n e r r u c w o l t u p n i 1 k l c , 0 k l c l e s _ k l c v n i , v 0 =v c c v 5 6 4 . 3 =5 ? n e _ k l cv n i , v 0 =v c c v 5 6 4 . 3 =0 5 1 ? storage temperature ................................................................... ?65c to +150c ambient temperature with power applied .................................. ?40c to +85c supply voltage, v cc .................................................................................................. +4.6v input/output voltage ........................................................... ?0.5v to v cc + 0.5v note: stresses greater than those listed under maximum ratings may cause permanent damage to the device. this is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. exposure to absolute maximum rating conditions for extended periods may affect reliability. maximum ratings (above which the useful life may be impaired. for user guidelines, not tested) l o b m y sr e t e m a r a p. n i m. p y t. x a ms t i n u v c c e g a t l o v y l p p u s5 3 1 . 33 . 35 6 4 . 3v i e e t n e r r u c y l p p u s0 5a m t a e r u t a r e p m e t t n e i b m a00 7c table 4a. operating conditions (commercial)
6 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1 2345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 12345678901 2 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 ps8626d 05/11/05 pi6c4120x lvcmos to lvpecl driver table 5. ac characteristics, (v cc = 3.3v 5%, t a = 0c to +70c (note 3) notes: 3. all parameters measured at 266mhz unless noted otherwise. the part does not add jitter. 4. measured from the v dd /2 point of the input to the differential output crossing point. 5. defined as skew between outputs at the same supply voltage and with equal load conditions. measured at the output crossing points differential. 6. defined as skew between outputs on different devices operating at the same supply voltages and with equal load conditions. measured at the output crossing points differential. l o b m y sr e t e m a r a ps n o i t i d n o c t s e t. n i m. p y t. x a ms t i n u f x a m y c n e u q e r f t u p n i m u m i x a m 6 6 2z h m t h l p : h g i h o t w o l y a l e d n o i t a g a p o r p 4 e t o n v c c v o t x o 0 . 19 . 1 s n t l h p : w o l o t h g i h y a l e d n o i t a g a p o r p 4 e t o n v c c v o t x o 0 . 19 . 1 ) o ( s t5 e t o n : w e k s t u p t u o1 10 3 s p ) p p ( k s t6 e t o n : w e k s t r a p o t t r a p 0 5 1 t c d e l c y c y t u d t u p t u o8 40 52 5% t / r t f e m i t l l a f / e s i r t u p t u o % 0 8 o t % 0 2 0 0 10 0 4s p l o b m y sr e t e m a r a ps n o i t i d n o c t s e t. n i m. p y t. x a ms t i n u v h o e g a t l o v h g i h t u p t u o1 e t o nv c c 4 . 1 -v c c 0 . 1 - v v l o e g a t l o v w o l t u p t u o1 e t o nv c c 0 . 2 -v c c 7 . 1 - v g n i w s t u p t u o k a e p - o t - k a e p g n i w s e g a t l o v 6 . 05 8 . 0 table 4c. lvpecl dc characteristics (v cc = 3.3v 5%, t a = 0c to +70c) note: 1. outputs terminated with 50ohm to v cc - 2v
7 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1 2345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 12345678901 2 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 ps8626d 05/11/05 pi6c4120x lvcmos to lvpecl driver table 5b. lvcmos/lvttl dc characteristics, (v cc = 3.3v 5%, t a = ?40c to +85c) l o b m y sr e t e m a r a ps n o i t i d n o c t s e t. n i m. p y t. x a ms t i n u v h i e g a t l o v h g i h t u p n i 1 k l c , 0 k l c25 6 7 . 3 v n e _ k l c l e s _ k l c 25 6 7 . 3 v l i e g a t l o v w o l t u p n i 1 k l c , 0 k l c3 . 0 ?8 . 0 n e _ k l c l e s _ k l c 3 . 0 ?8 . 0 i h i t n e r r u c h g i h t u p n i 1 k l c , 0 k l c l e s _ k l c v n i =v c c v 5 6 4 . 3 =0 5 1 a n e _ k l cv n i =v c c v 5 6 4 . 3 =5 i l i t n e r r u c w o l t u p n i 1 k l c , 0 k l c l e s _ k l c v n i , v 0 =v c c v 5 6 4 . 3 =5 ? n e _ k l cv n i , v 0 =v c c v 5 6 4 . 3 =0 5 1 ? l o b m y sr e t e m a r a p. n i m. p y t. x a ms t i n u v c c e g a t l o v y l p p u s5 3 1 . 33 . 35 6 4 . 3v i e e t n e r r u c y l p p u s0 5a m t a e r u t a r e p m e t t n e i b m a0 4 ?5 8c table 5a. operating conditions (industrial)
8 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1 2345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 12345678901 2 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 ps8626d 05/11/05 pi6c4120x lvcmos to lvpecl driver table 6. ac characteristics, (v cc = 3.3v 5%, t a = ?40c to +85c, see note 3) notes: 3. all parameters measured at 266mhz unless noted otherwise. the part does not add jitter. 4. measured from the v dd /2 point of the input to the differential output crossing point. 5. defined as skew between outputs at the same supply voltage and with equal load conditions. measured at the output crossing points differential. 6. defined as skew between outputs on different devices operating at the same supply voltages and with equal load conditions. measured at the output crossing points differential. l o b m y sr e t e m a r a ps n o i t i d n o c t s e t. n i m. p y t. x a ms t i n u f x a m y c n e u q e r f t u p n i m u m i x a m 6 6 2z h m t h l p : h g i h o t w o l y a l e d n o i t a g a p o r p 4 e t o n v c c v o t x o 0 . 19 . 1 s n t l h p : w o l o t h g i h y a l e d n o i t a g a p o r p 4 e t o n v c c v o t x o 0 . 19 . 1 ) o ( s t5 e t o n : w e k s t u p t u o1 10 0 1 s p ) p p ( k s t6 e t o n : w e k s t r a p o t t r a p 0 5 1 t c d e l c y c y t u d t u p t u o5 40 55 5% t / r t f e m i t l l a f / e s i r t u p t u o % 0 8 o t % 0 2 0 0 10 0 4s p l o b m y sr e t e m a r a ps n o i t i d n o c t s e t. n i m. p y t. x a ms t i n u v h o e g a t l o v h g i h t u p t u o1 e t o nv c c 4 . 1 -v c c 0 . 1 - v v l o e g a t l o v w o l t u p t u o1 e t o nv c c 0 . 2 -v c c 7 . 1 - v g n i w s t u p t u o k a e p - o t - k a e p g n i w s e g a t l o v 6 . 05 8 . 0 table 5c. lvpecl dc characteristics (v cc = 3.3v 5%, t a = ?40c to +85c) note: 1. outputs terminated with 50ohm to v cc - 2v
9 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1 2345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 12345678901 2 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 ps8626d 05/11/05 pi6c4120x lvcmos to lvpecl driver lvpecl v ee = -1.3v 0.165v z = 50-ohm z = 50-ohm 50-ohm 50-ohm nqx qx v cc = 2v v cc scope qx nqx qy nqy tsk(0) figure2. 2-3.3v output load test circuit figure 3. output skew qx nqx qy nqy tsk(0) part 1 part 2 figure 4. part-to-part skew 20% 20% 80% 80% clock inputs and outputs t r v swing t f figure 5. input and output rise and fall time clk0, clk1 q0, q3 nq0, nq3 t pd figure 6. propagation delay odc = q0, q3 nq0, nq3 t period pulse width t pw t period figure 7. odc & t period
10 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1 2345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 12345678901 2 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 ps8626d 05/11/05 pi6c4120x lvcmos to lvpecl driver 0.193 0.201 0.047 0.002 0.006 seating plane 0.0256 typical 0.018 0.030 0.004 0.008 0.240 0.264 1 14 0.169 0.177 0.05 0.15 6.1 6.7 0.45 0.75 0.09 0.20 4.3 4.5 1.20 max. 4.90 5.10 0.65 0.19 0.30 0.007 0.012 packaging mechanical: 14-pin tssop (l)
11 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1 2345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 12345678901 2 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 ps8626d 05/11/05 pi6c4120x lvcmos to lvpecl driver .252 .260 .047 1.20 .002 .006 seating plane .0256 bsc .018 .030 .004 .008 .238 .269 1 20 .169 .177 0.05 0.15 6.1 6.7 0.45 0.75 0.09 0.20 4.3 4.5 6.4 6.6 0.65 0.19 0.30 .007 .012 max packaging mechanical: 20-pin tssop (l) notes: 1. thermal characteristics can be found on the company web site at www.pericom.com/packaging/ ordering information ordering code package code package type operating temperature pi6c41202l l 14-pin1 73-mil tssop commercial pi6c41202le l pb-free & green, 14-pin1 73-mil tssop commercial pi6c41204l l 20-pin 173-mil tssop commercial pi6c41204le l pb-free & green, 20-pin 173-mil tssop commercial pi6c41204li l 20-pin 173-mil tssop industrial pi6c41204lie l pb-free & green, 20-pin 173-mil tssop industrial PI6C41204AL l 20-pin 173-mil tssop commercial PI6C41204ALe l pb-free & green, 20-pin 173-mil tssop commercial pericom semiconductor corporation ? 1-800-435-2336 ? www.pericom.com

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