cloc k gener ator ic b u2286fv descr iption dimension (units : mm) f eatures applications 01w031a december , 2001 absolute maxim um ratings (t a=25 c) recommended oper ating conditions (t a=25 c) * der ating :4.5mw/ c f or oper ation abo v e t a=25 c maxim um applied v oltage p o w er dissipation oper ating temper ature r ange stor age temper ature r ange p ar ameter symbol limits unit v dd pd t opr tstg 450 +70 +125 ? 10 ? 30 ~ 7.0 ? 0.5 ~ ~ mw c c v p o w er supply v oltage v dd 3.3 3.0 3.6 v p ar ameter min. max. unit t yp . symbol * ssop-b16 9 8 16 1 0.1 6.4 0.3 4.4 0.2 5.0 0.2 0.15 0.1 0.22 0.1 0.65 1.15 0.1 0.3min. 0.1 d vd sets b u2286fv is an ic that gener ates m ultiple cloc ks from the b uilt-in 2ch pll of the e xter nal cr ystal oscillator used f or d vd system. this ic creates six kinds of signals f or video , audio , and lo w jitter system. 1) can gener ate cloc k signals needed f or d vd b y a single chip 2) all output lo w jitter (no load 30ps) 3) built-in pll loop filter , no e xter nal components needed 4) 3.3v single po w er supply 5) small ssop-b16 pac kage
application circuit clk54m clk54m ? ? ? ? ? ? ? ? 45 ? 54 27 33.8688 16.9344 36.864 33.8688 18.432 16.9344 50 50 ? ? ? ? ? ? ? ? 55 ? mhz mhz mhz mhz mhz mhz mhz mhz % ps clk27m clk33m clk16m clk768_h clk768_l clk384_h clk384_l duty jssd clk27m clk33m clk16m clk768fs1 clk384fs2 duty jitter1 s xt al 375/64/4 oper ating circuit current idd ? 30 50 ma no load xt al 375/64/8 xt al 147/40/4 xt al 147/40/8 fsel1=open xt al output fsel1=l xt al 147/40/4 fsel1=open xt al/2 output fsel1=l xt al 147/40/8 measured b y1/2vdd shor t ter m jitter 1 s ? 300 ? ps jsabs jitter min. ? max. min. ? max. electr ical char acter istics (unless otherwise noted; t a=25 c , v dd =3.3v , cr ystal frequency=27mhz) symbol min. max. unit conditions t yp . p ar ameter 1 2 3 4 5 6 7 8 16 oe clk33m 33.8688mhz 33.8688 or 36.864mhz open:enab le lo w:disab le lo w:44.1khz open:48khz 16.9344mhz 16.9344 or 18.432mhz fsel clk16m d vdd d vss 768fs1 384fs2 vdd2 vss2 clk54m 54mhz 27mhz clk27m a vdd a vss xt alin xt alout 15 14 13 12 11 10 9 b u2286fv
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