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81006aki www.icst.com/products/hiperclocks.html rev. a january 19, 2006 1 integrated circuit systems, inc. ICS81006I vcxo- to -6 lvcmos o utputs vcxo 0: 1 1: 2 sync sync lp filter g eneral d escription the ICS81006I is a high performance, low jitter/low phase noise vcxo and is a member of the hiperclocks? family of high performance clock solutions from ics. the ICS81006I works in conjunction with a pullable crystal to generate an output clock over the range of 12mhz - 40mhz and has 6 lvcmos outputs, effectively integrating a fanout buffer function. the frequency of the vcxo is adjusted by the vc control voltage input. the output range is 100ppm around the nominal crystal frequency. the vc control voltage range is 0 - v dd . the device is packaged in a small 4mm x 4mm vfqfn package and is ideal for use on space constrained boards typically encountered in adsl/ vdsl applications. f eatures ? six lvcmos/lvttl outputs, 20 nominal output impedance ? output q5 can be selected for 1 or 2 frequency relative to the crystal frequency ? output frequency range: 12mhz to 40mhz ? crystal pull range: 90ppm (typical) ? synchronous output enable places outputs in high-z state ? on-chip filter on vin to suppress noise modulation of vcxo ? v dd /v ddo combinations 3.3v/3.3v 3.3v/2.5v 3.3v/1.8v 2.5v/2.5v 2.5v/1.8v ? 4mm x 4mm 20 lead vfqfn package is ideal for space constrained designs ? -40c to 85c ambient operating temperature ? available in both standard and lead-free rohs compliant packages hiperclocks? ic s b lock d iagram p in a ssignment oe0 vc xtal_in xtal_out div_sel_q5 oe1 q0 q1 q2 q3 q4 q5 (pullup) (pulldown) xtal_in xtal_out v dd vc div_sel_q5 gnd q2 v ddo q3 gnd oe1 gnd q5 v ddo q4 oe0 gnd q0 v ddo q1 1 2 3 4 5 20 19 18 17 16 ICS81006I 20-lead vfqfn 4mm x 4mm x 0.95 package body k package top view 6 7 8 9 10 15 14 13 12 11 (pullup)
81006aki www.icst.com/products/hiperclocks.html rev. a january 19, 2006 2 integrated circuit systems, inc. ICS81006I vcxo- to -6 lvcmos o utputs t able 2. p in c haracteristics t able 1. p in d escriptions r e b m u ne m a ne p y tn o i t p i r c s e d 2 , 1 , n i _ l a t x t u o _ l a t x t u p n i . t u p n i e h t s i n i _ l a t x . e c a f r e t n i r o t a l l i c s o l a t s y r c . t u p t u o e h t s i t u o _ l a t x 3v d d r e w o p. n i p y l p p u s e r o c 4c vt u p n i. t u p n i e g a t l o v l o r t n o c 55 q _ l e s _ v i dt u p n in w o d l l u p , h g i h n e h w . 1 , w o l n e h w . t u p t u o 5 q r o f n i p t c e l e s r e d i v i d t u p t u o . s l e v e l e c a f r e t n i l t t v l / s o m c v l , 2 61 e ot u p n ip u l l u p . d e l b a n e s i t u p t u o 5 q , h g i h n e h w . n i p e l b a n e t u p t u o . s l e v e l e c a f r e t n i l t t v l / s o m c v l . e t a t s z i h o t 5 q s e c r o f , w o l n e h w 9 1 , 5 1 , 1 1 , 7d n gr e w o p. d n u o r g y l p p u s r e w o p , 2 1 , 0 1 , 8 8 1 , 6 1 , 4 1 , 3 q , 4 q , 5 q 0 q , 1 q , 2 q t u p t u o . s l e v e l e c a f r e t n i l t t v l / s o m c v l . s t u p t u o k c o l c d e d n e - e l g n i s 5 1 . e c n a d e p m i t u p t u o l a c i p y t 7 1 , 3 1 , 9v o d d r e w o p. s n i p y l p p u s t u p t u o 0 20 e ot u p n ip u l l u p n e h w . d e l b a n e e r a s t u p t u o 4 q : 0 q , h g i h n e h w . n i p e l b a n e t u p t u o . s l e v e l e c a f r e t n i l t t v l / s o m c v l . e t a t s z i h o t 4 q : 0 q s e c r o f , w o l : e t o n p u l l u p d n a n w o d l l u p . s e u l a v l a c i p y t r o f , s c i t s i r e t c a r a h c n i p , 2 e l b a t e e s . s r o t s i s e r t u p n i l a n r e t n i o t s r e f e r 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 tm u m i n i ml a c i p y tm u m i 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 i1 e o , 0 e o4f p c d p e c n a t i c a p a c n o i t a p i s s i d r e w o p v d d v = o d d v 5 6 4 . 3 =3f p v d d , v 5 2 6 . 2 r o v 5 6 4 . 3 = v o d d v 5 2 6 . 2 = 4f p v d d , v 5 2 6 . 2 r o v 5 6 4 . 3 = v o d d v 2 = 6f p 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 i 1 5k r n w o d l l u p r o t s i s e r n w o d l l u p t u p n i 1 5k r t u o e c n a d e p m i t u p t u o v o d d v 3 . 3 =0 2 v o d d v 5 . 2 =5 2 v o d d v 8 . 1 =8 3
81006aki www.icst.com/products/hiperclocks.html rev. a january 19, 2006 3 integrated circuit systems, inc. ICS81006I vcxo- to -6 lvcmos o utputs a bsolute m aximum r atings supply voltage, v dd 4.6v inputs, v i -0.5v to v dd + 0.5 v outputs, v o -0.5v to v dd + 0.5v package thermal impedance, ja 38.5c/w (0 mps) storage temperature, t stg -65c to 150c note: stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. these ratings are stress specifications only. functional operation of product at these conditions or any conditions be- yond those listed in the dc characteristics or ac character- istics is not implied. exposure to absolute maximum rating conditions for extended periods may affect product reliability. t able 3a. p ower s upply dc c haracteristics , v dd = 3.3v5%, v ddo = 3.3v5% = 2.5v5% = 1.8v0.2v, t a = -40c to 85c t able 3b. p ower s upply dc c haracteristics , v dd = 2.5v5%, v ddo = 2.5v5% = 1.8v0.2v, t a = -40c to 85c t able 3c. lvcmos/lvttl dc c haracteristics , 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 tm u m i n i ml a c i p y tm u m i 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 v d d % 5 v 3 . 3 =2v d d 3 . 0 +v v d d % 5 v 5 . 2 =7 . 1v d d 3 . 0 +v v l i e g a t l o v w o l t u p n i , 1 e o , 0 e o 5 q _ l e s _ v i d v d d % 5 v 3 . 3 =3 . 0 -8 . 0v v d d % 5 v 5 . 2 =3 . 0 -7 . 0v c ve g a t l o v l o r t n o c o x c v 0v d d v i h i t n e r r u c h g i h t u p n i 5 q _ l e s _ v i dv d d % 5 v 5 . 2 r o v 3 . 3 =0 5 1a 1 e o , 0 e ov d d % 5 v 5 . 2 r o v 3 . 3 =5a i l i t n e r r u c w o l t u p n i 5 q _ l e s _ v i dv d d % 5 v 5 . 2 r o v 3 . 3 =5 -a 1 e o , 0 e ov d d % 5 v 5 . 2 r o v 3 . 3 =0 5 1 -a i i n i p c v f o t n e r r u c t u p n iv d d v 5 2 6 . 2 r o v 5 6 4 . 3 =0 0 1 -0 0 1a v h o ; e g a t l o v h g i h t u p t u o1 e t o n v o d d % 5 v 3 . 3 =6 . 2v v o d d % 5 v 5 . 2 =8 . 1v v o d d v 2 . 0 v 8 . 1 =5 . 1v v l o ; e g a t l o v w o l t u p t u o1 e t o n v o d d % 5 v 5 . 2 r o v 3 . 3 =5 . 0v v o d d v 2 . 0 v 8 . 1 =4 . 0v 0 5 h t i w d e t a n i m r e t s t u p t u o : 1 e t o n v o t o d d . s m a r g a i d " t i u c r i c t s e t d a o l " , n o i t c e s t n e m e r u s a e m r e t e m a r a p e e s . 2 / 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 tm u m i n i ml a c i p y tm u m i x a ms t i n u v d d e g a t l o v y l p p u s e r o c 5 3 1 . 33 . 35 6 4 . 3v v o d d e g a t l o v y l p p u s t u p t u o 5 3 1 . 33 . 35 6 4 . 3v 5 7 3 . 25 . 25 2 6 . 2v 6 . 18 . 10 . 2v i d d t n e r r u c y l p p u s r e w o p 0 5a m i o d d t n e r r u c y l p p u s t u p t u o 0 2a m 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 tm u m i n i ml a c i p y tm u m i x a ms t i n u v d d e g a t l o v y l p p u s e r o c 5 7 3 . 25 . 25 2 6 . 2v v o d d e g a t l o v y l p p u s t u p t u o 5 7 3 . 25 . 25 2 6 . 2v 6 . 18 . 10 . 2v i d d t n e r r u c y l p p u s r e w o p 0 5a m i o d d t n e r r u c y l p p u s t u p t u o 0 2a m
81006aki www.icst.com/products/hiperclocks.html rev. a january 19, 2006 4 integrated circuit systems, inc. ICS81006I vcxo- to -6 lvcmos o utputs t able 4a. ac c haracteristics , v dd = v ddo = 3.3v5%, t a = -40c to 85c t able 4b. ac c haracteristics , v dd = 3.3v5%, v ddo = 2.5v5%, t a = -40c to 85c t able 4c. ac c haracteristics , v dd = 3.3v5%, v ddo = 1.8v0.2v, 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 tm u m i n i ml a c i p y tm u m i x a ms t i n u f t u o y c n e u q e r f t u p t u o 2 14 4 . 9 10 4z h m t ) ? ( t i j ; ) m o d n a r ( r e t t i j e s a h p s m r 1 e t o n z h m 1 - z h k 1 : e g n a r n o i t a r g e t n i5 3 . 0s p ) o ( k s t ; w e k s t u p t u o 3 , 2 e t o n 4 q : 0 q 0 3s p 5 q : 0 q1 = 5 q _ l e s _ v i d0 0 1s p 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 20 0 20 5 7s p c d oe l c y c y t u d t u p t u o 4 46 5% . t o l p e s i o n e s a h p e h t o t r e f e r e s a e l p : 1 e t o n . s n o i t i d n o c d a o l l a u q e h t i w d n a e g a t l o v y l p p u s e m a s e h t t a s t u p t u o n e e w t e b w e k s s a d e n i f e d : 2 e t o n . s t n i o p s s o r c l a i t n e r e f f i d t u p t u o e h t t a d e r u s a e m . 5 6 d r a d n a t s c e d e j h t i w e c n a d r o c c a n i d e n i f e d s i r e t e m a r a p s i h t : 3 e t o n 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 tm u m i n i ml a c i p y tm u m i x a ms t i n u f t u o y c n e u q e r f t u p t u o 2 14 4 . 9 10 4z h m t ) ? ( t i j ; ) m o d n a r ( r e t t i j e s a h p s m r 1 e t o n z h m 1 - z h k 1 : e g n a r n o i t a r g e t n i8 3 . 0s p ) o ( k s t ; w e k s t u p t u o 3 , 2 e t o n 4 q : 0 q 0 2s p 5 q : 0 q1 = 5 q _ l e s _ v i d0 9s p 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 20 0 30 0 8s p c d oe l c y c y t u d t u p t u o 5 45 5% . t o l p e s i o n e s a h p e h t o t r e f e r e s a e l p : 1 e t o n . s n o i t i d n o c d a o l l a u q e h t i w d n a e g a t l o v y l p p u s e m a s e h t t a s t u p t u o n e e w t e b w e k s s a d e n i f e d : 2 e t o n . s t n i o p s s o r c l a i t n e r e f f i d t u p t u o e h t t a d e r u s a e m . 5 6 d r a d n a t s c e d e j h t i w e c n a d r o c c a n i d e n i f e d s i r e t e m a r a p s i h t : 3 e t o n 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 tm u m i n i ml a c i p y tm u m i x a ms t i n u f t u o y c n e u q e r f t u p t u o 2 14 4 . 9 10 4z h m t ) ? ( t i j ; ) m o d n a r ( r e t t i j e s a h p s m r 1 e t o n z h m 1 - z h k 1 : e g n a r n o i t a r g e t n i7 2 . 0s p ) o ( k s t ; w e k s t u p t u o 3 , 2 e t o n 4 q : 0 q 0 5s p 5 q : 0 q1 = 5 q _ l e s _ v i d0 8 1s p 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 20 5 40 0 4 1s p c d oe l c y c y t u d t u p t u o 5 45 5% . t o l p e s i o n e s a h p e h t o t r e f e r e s a e l p : 1 e t o n . s n o i t i d n o c d a o l l a u q e h t i w d n a e g a t l o v y l p p u s e m a s e h t t a s t u p t u o n e e w t e b w e k s s a d e n i f e d : 2 e t o n . s t n i o p s s o r c l a i t n e r e f f i d t u p t u o e h t t a d e r u s a e m . 5 6 d r a d n a t s c e d e j h t i w e c n a d r o c c a n i d e n i f e d s i r e t e m a r a p s i h t : 3 e t o n
81006aki www.icst.com/products/hiperclocks.html rev. a january 19, 2006 5 integrated circuit systems, inc. ICS81006I vcxo- to -6 lvcmos o utputs t able 4d. ac c haracteristics , v dd = v ddo = 2.5v5%, t a = -40c to 85c t able 4e. ac c haracteristics , v dd = 2.5v5%, v ddo = 1.8v0.2v, 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 tm u m i n i ml a c i p y tm u m i x a ms t i n u f t u o y c n e u q e r f t u p t u o 2 14 4 . 9 10 4z h m t ) ? ( t i j ; ) m o d n a r ( r e t t i j e s a h p s m r 1 e t o n z h m 1 - z h k 1 : e g n a r n o i t a r g e t n i8 2 . 0s p ) o ( k s t ; w e k s t u p t u o 3 , 2 e t o n 4 q : 0 q 5 2s p 5 q : 0 q1 = 5 q _ l e s _ v i d5 0 1s p 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 20 0 30 0 8s p c d oe l c y c y t u d t u p t u o 5 45 5% . t o l p e s i o n e s a h p e h t o t r e f e r e s a e l p : 1 e t o n . s n o i t i d n o c d a o l l a u q e h t i w d n a e g a t l o v y l p p u s e m a s e h t t a s t u p t u o n e e w t e b w e k s s a d e n i f e d : 2 e t o n . s t n i o p s s o r c l a i t n e r e f f i d t u p t u o e h t t a d e r u s a e m . 5 6 d r a d n a t s c e d e j h t i w e c n a d r o c c a n i d e n i f e d s i r e t e m a r a p s i h t : 3 e t o n 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 tm u m i n i ml a c i p y tm u m i x a ms t i n u f t u o y c n e u q e r f t u p t u o 2 14 4 . 9 10 4z h m t ) ? ( t i j ; ) m o d n a r ( r e t t i j e s a h p s m r 1 e t o n z h m 1 - z h k 1 : e g n a r n o i t a r g e t n i6 2 . 0s p ) o ( k s t ; w e k s t u p t u o 3 , 2 e t o n 4 q : 0 q 0 4s p 5 q : 0 q1 = 5 q _ l e s _ v i d5 8 1s p 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 20 5 40 0 4 1s p c d oe l c y c y t u d t u p t u o 0 40 6% . t o l p e s i o n e s a h p e h t o t r e f e r e s a e l p : 1 e t o n . s n o i t i d n o c d a o l l a u q e h t i w d n a e g a t l o v y l p p u s e m a s e h t t a s t u p t u o n e e w t e b w e k s s a d e n i f e d : 2 e t o n . s t n i o p s s o r c l a i t n e r e f f i d t u p t u o e h t t a d e r u s a e m . 5 6 d r a d n a t s c e d e j h t i w e c n a d r o c c a n i d e n i f e d s i r e t e m a r a p s i h t : 3 e t o n
81006aki www.icst.com/products/hiperclocks.html rev. a january 19, 2006 6 integrated circuit systems, inc. ICS81006I vcxo- to -6 lvcmos o utputs phase noise mas k offset frequency f 1 f 2 phase noise plot rms jitter = area under the masked phase noise plot noise power p arameter m easurement i nformation scope qx lvcmos 3.3v c ore /1.8v o utput l oad ac t est c ircuit 2.4v0.065v v ddo -0.9v0.1v v dd 0.9v0.1v scope qx lvcmos 3.3v c ore /2.5v o utput l oad ac t est c ircuit 2.05v5% v ddo -1.25v5% v dd 1.25v5% 3.3v c ore /3.3v o utput l oad ac t est c ircuit scope qx lvcmos 1.65v5% -1.65v5% 2.5v c ore /2.5v o utput l oad ac t est c ircuit 2.5 c ore /1.8v o utput l oad ac t est c ircuit rms p hase j itter scope qx lvcmos 1.6v0.025v v ddo -0.9v0.1v v dd 0.9v0.1v v dd , v ddo gnd gnd gnd gnd scope qx lvcmos 1.25v5% -1.25v5% v dd , v ddo gnd
81006aki www.icst.com/products/hiperclocks.html rev. a january 19, 2006 7 integrated circuit systems, inc. ICS81006I vcxo- to -6 lvcmos o utputs o utput r ise /f all t ime o utput s kew clock outputs 20% 80% 80% 20% t r t f t period t pw t period odc = v dd 2 x 100% t pw q0:q5 o utput d uty c ycle /p ulse w idth /p eriod t sk(o) v ddo 2 v ddo 2 qy qx
81006aki www.icst.com/products/hiperclocks.html rev. a january 19, 2006 8 integrated circuit systems, inc. ICS81006I vcxo- to -6 lvcmos o utputs oscillator a pplication i nformation f igure 1: vcxo o scillator c ircuit v c c v c s1 c l1 c s2 c l2 c v xtal vcxo (internal) optional ? ? ? ? ? control voltage t able 5. e xample c rystal p arameters 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 tm u m i n i ml a c i p y tm u m i x a ms t i n u f n y c n e u q e r f l a n i m o n 4 4 . 9 1z h m f t e c n a r e l o t y c n e u q e r f 0 2 m p p f s y t i l i b a t s y c n e u q e r f 0 2 m p p e g n a r e r u t a r e p m e t g n i t a r e p o 00 7c c l e c n a t i c a p a c d a o l 2 1f p c o e c n a t i c a p a c t n u h s 4f p c , 0 c 1 o i t a r y t i l i b a l l u p 0 2 20 4 2 r s ee c n a t s i s e r s e i r e s t n e l a v i u q e 0 2 l e v e l e v i r d 1w m c 5 2 @ g n i g a r a e y r e p 3 m p p n o i t a r e p o f o e d o m l a t n e m a d n u f vcxo c rystal s election choosing a crystal with the correct characteristics is one of the most critical steps in using a voltage controlled crystal oscillator (vcxo). the crystal parameters affect the tuning v c control voltage used to tune frequency c v varactor capacitance, varies due to the change in control voltage range and accuracy of a vcxo. below are the key variables and an example of using the crystal parameters to calculate the tuning range of the vcxo. c l1, c l2 load tuning capacitance used for fine tuning or centering nominal frequency c s1, c s2 stray capacitance caused by pads, vias, and other board parasitics
81006aki www.icst.com/products/hiperclocks.html rev. a january 19, 2006 9 integrated circuit systems, inc. ICS81006I vcxo- to -6 lvcmos o utputs 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 tm u m i n i ml a c i p y tm u m i x a ms t i n u c w o l _ v e c n a t i c a p a c r o t c a r a v w o lv c v 0 =4 . 5 1f p c h g i h _ v e c n a t i c a p a c r o t c a r a v h g i hv c v 3 . 3 =6 . 9 2f p t able 6. v aractor p arameters f ormulas ( ) ( ) ()( ) low v s l low v s l low v s l low v s l low c c c c c c c c c c c c c _ 2 2 _ 1 1 _ 2 2 _ 1 1 + + + + + + + ? + + = ( ) ( ) ()( ) high v s l high v s l high v s l high v s l high c c c c c c c c c c c c c _ 2 2 _ 1 1 _ 2 2 _ 1 1 + + + + + + + ? + + = 6 0 1 0 0 1 0 10 1 2 1 1 2 1 ) ( ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? + ? ? ? ? ? ? ? ? ? + ? ? = c c c c c c c c tpr range pull t otal high low ?c low is the effective capacitance due to the low varactor capacitance, load capacitance and stray capacitance. c low determines the high frequency component on the tpr. ?c high is the effective capacitance due to the high varactor capacitance, load capacitance and stray capacitance. c high determines the low frequency component on the tpr. absolute pull range (apr) = total pull range ? (frequency tolerance + frequency stability + aging) e xample c alculations using the tables and figures above, we can now calculate the tpr and apr of the vcxo using the example crystal parameters. for the numerical example below there were some assumptions made. first, the stray capacitance (c s1 , c s2 ), which is all the excess capacitance due to board parasitic, is 4pf. second, the expected lifetime of the project is 5 years; hence the inaccuracy due to aging is 15ppm. third, though many boards will not require load tuning capacitors (c l1 , c l2 ), it is recommended for long-term consistent performance of the system that two tuning capacitor pads be placed into every design. typical values for the load tuning capacitors will range from 0 to 4pf. ()() ()() p f pf pf pf pf pf pf pf pf c low 7 . 9 4 . 15 4 0 4 . 15 4 0 4 . 15 4 0 4 . 15 4 0 = + + + + + + + ? + + = ()() ()() pf pf pf pf pf pf pf pf pf c high 8 . 16 6 . 29 4 0 6 . 29 4 0 6 . 29 4 0 6 . 29 4 0 = + + + + + + + ? + + = pp m pf pf pf pf t pr 5 . 226 10 4 8 . 16 1 220 2 1 4 7 . 9 1 220 2 1 6 = ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? + ? ? ? ? ? ? ? ? ? + ? ? = tpr = 113.25ppm apr = 113.25ppm ? (20ppm + 20ppm + 15ppm) = 58.25ppm the example above will ensure a total pull range of 113.25 ppm with an apr of 58.25ppm. many times, board designers may select their own crystal based on their application. if the application requires a tighter apr, a crystal with better pullability (c0/c1 ratio) can be used. also, with the equations above, one can vary the frequency tolerance, temperature stability, and aging or shunt capacitance to achieve the required pullability.
81006aki www.icst.com/products/hiperclocks.html rev. a january 19, 2006 10 integrated circuit systems, inc. ICS81006I vcxo- to -6 lvcmos o utputs s chematic e xample figure 2 shows an example of ICS81006I application sche- matic. the decoupling capacitors should be located as close as possible to the power pin. for the lvcmos 20 output drivers, series termination example is shown in the sche- matic. additional termination approaches are shown in the lvcmos termination application note. f igure 2. ICS81006I s chematic e xample i nputs : c ontrol p ins : all control pins have internal pull-ups or pull-downs; additional resistance is not required but can be added for additional protection. a 1k resistor can be used. the vc pin can not be floated. r ecommendations for u nused i nput and o utput p ins o utputs : lvcmos o utput : all unused lvcmos output can be left floating. we recommend that there is no trace attached. c2 spare r5 1k vc = 0v to vdd vdd c1 spare u1 81006 2 3 4 5 6 7 8 9 11 12 13 14 17 18 19 20 10 16 15 1 xtal_out vdd vc div_sel_q5 oe1 gnd q5 vddo gnd q3 vddo q2 vddo q0 gnd oe0 q4 q1 gnd xtal_in zo = 50 (u1-13) c3 0.1uf unused outputs can be left floating. there should be no trace attached to unused outputs. device characterized and specification limits set with all outputs terminated. c6 0.1uf c5 0.1uf c7 10uf pull-up example (u1-9) r4 1k quartz crystal should be placed as close to the device as possible. vddo pull-down example vdd r3 1k vddo r1 30 vdd r2 30 vc c4 0.1uf xta l (u1-17) zo = 50 vdd (u1-3) 81006i
81006aki www.icst.com/products/hiperclocks.html rev. a january 19, 2006 11 integrated circuit systems, inc. ICS81006I vcxo- to -6 lvcmos o utputs r eliability i nformation t ransistor c ount the transistor count for ICS81006I is: 983 t able 7. ja vs . a ir f low t able for 20 l ead vfqfn ja by velocity (meters per second) 0 1 2.5 single-layer pcb, jedec standard t est boards 141.7c/w 126.0c/w 116.9c/w multi-layer pcb, jedec standard test boards 38.5c/w 35.0c/w 33.4c/w note: most modern pcb designs use multi-layered boards. the data in the second row pertains to most designs.
81006aki www.icst.com/products/hiperclocks.html rev. a january 19, 2006 12 integrated circuit systems, inc. ICS81006I vcxo- to -6 lvcmos o utputs p ackage o utline - k s uffix for 20 l ead vfqfn t able 8. p ackage d imensions reference document: jedec publication 95, mo-220 n o i t a i r a v c e d e j s r e t e m i l l i m n i s n o i s n e m i d l l a l o b m y sm u m i n i mm u m i x a m n 0 2 a 0 8 . 00 . 1 1 a 05 0 . 0 3 a e c n e r e f e r 5 2 . 0 b 8 1 . 00 3 . 0 e c i s a b 0 5 . 0 n d 5 n e 5 d 0 . 4 2 d 5 7 . 00 8 . 2 e 0 . 4 2 e 5 7 . 00 8 . 2 l 5 3 . 05 7 . 0 to p view index area d cham fer 4x 0.6 x 0.6 max optional anvil singula tion a 0. 0 8 c c a3 a1 s eating plan e e2 e2 2 l (n -1)x e (r ef.) (ref. ) n & n even n e d2 2 d2 (ref.) n & n odd 1 2 e 2 (ty p.) if n & n are even (n -1)x e (re f.) b th er mal ba se n or
81006aki www.icst.com/products/hiperclocks.html rev. a january 19, 2006 13 integrated circuit systems, inc. ICS81006I vcxo- to -6 lvcmos o utputs t able 9. o rdering i nformation while the information presented herein has been checked for both accuracy and reliability, integrated circuit systems, incorpor ated (ics) assumes no responsibility for either its use or for infringement of any patents or other rights of third parties, which would result from its use. no other circuits, patent s, or licenses are implied. this product is intended for use in normal commercial and industrial applications. any other applications such as those requiring high reliability or other extr aordinary environmental requirements are not recommended without additional processing by ics. ics reserves the right to change any circuitry or specifications without notice. ics does not aut horize or warrant any ics product for use in life support devices or critical medical instruments. the aforementioned trademark, hiperclocks is a trademark of integrated circuit systems, inc. or its subsidiaries in the united states and/or other countries. r e b m u n r e d r o / t r a pg n i k r a me g a k c a pg n i g a k c a p g n i p p i h se r u t a r e p m e t i k a 6 0 0 1 8 s c ii a 6 0 0 1n f q f v d a e l 0 2e b u tc 5 8 o t c 0 4 - t i k a 6 0 0 1 8 s c ii a 6 0 0 1n f q f v d a e l 0 2l e e r & e p a t 0 0 5 2c 5 8 o t c 0 4 - f l i k a 6 0 0 1 8 s c id b tn f q f v " e e r f - d a e l " d a e l 0 2e b u tc 5 8 o t c 0 4 - t f l i k a 6 0 0 1 8 s c id b tn f q f v " e e r f - d a e l " d a e l 0 2l e e r & e p a t 0 0 5 2c 5 8 o t c 0 4 - . t n a i l p m o c s h o r e r a d n a n o i t a r u g i f n o c e e r f - b p e h t e r a r e b m u n t r a p e h t o t x i f f u s " f l " n a h t i w d e r e d r o e r a t a h t s t r a p : e t o n

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