rev 2.4, may 16, 2008 page 1 of 8 2200 laurelwood road, santa clara, ca 95054 tel: (408) 855-0555 fax: (408) 855-0550 www.spectralinear.com sl2309nz low jitter and skew dc to 140 mhz clock buffer key features ? dc to 140 mhz operating frequency range ? low output clock skew: 50ps-typ ? low part-to-part output skew: 90 ps-typ ? low output propogation delay: 3.5ns-typ ? 3.3v +/-10% operation supply voltage ? low power dissipation: ? - 9 ma-typ at 33mhz ? - 11 ma-typ at 66mhz ? - 14 ma-typ at 133mhz ? one input to nine (9) output fanout buffer drivers ? available in 16-pin soic package ? available in commercial and industrial grades ? available in lead (pb) free package ? applications ? general purpose pci/pci-x clock buffer ? printers, mfps and digital copiers ? pcs and work stations ? routers, switchers and servers ? datacom and telecom ? high-speed digital embeded systems description the sl2309nz is a low skew, jitter and power fanout buffer designed to produce up to nine (9) clock outputs from one (1) reference input clock, for high speed clock distribution, including pci/pci-x applications. the sl2309nz products operate from dc to 140mhz. refer to sl23ep09nz products for dc to 220mhz-max frequency range, 2.5v power supply operation, improved skew, jitter and higher drive options. also refer to sl2304nz or sl23ep04nz products for 1:4 clock fanout buffers from 2.5v to 3.3v power supply and dc to 220mhz frequency range. benefits ? up to nine (9) distribution of input clock ? low propogation delay ? low output-to-output skew ? low output clock jtter ? low power dissipation block diagram
rev 2.4, may 16, 2008 page 2 of 8 sl2309nz pin configuration 16-pin soic pin description pin number pin name pin type pin description 1 clkin input external reference clock input 2 output1 output buffered clock output-1 3 output2 output buffered clock output-2 4 vdd power 3.3v +/-10% power supply 5 gnd power power ground 6 output3 output buffered clock output-3 7 output4 output buffered clock output-4 8 vdd power 3.3v +/-10% power supply 9 gnd power power ground 10 output5 output buffered clock output-5 11 output6 output buffered clock output-6 12 gnd power power ground 13 vdd power 3.3v +/-10% power supply 14 output7 output buffered clock output-7 15 output8 output buffered clock output-8 16 output9 output buffered clock output-9
rev 2.4, may 16, 2008 page 3 of 8 sl2309nz general description the sl2309nz is a low skew, jitter and power fanout buffer designed to produce up to nine (9) clock outputs from one (1) reference input clock, for high speed clock distribution, including pci/pci-x applications. input and output frequency range the input and output frequency is the same (1x) for sl2309nz and the product operates from dc to 140mhz clock range with 15pf and 100mhz with 30pf output loads. high drive capability the sl2309nz is designed to meet high drive requirements for up to 30pf load condition per electrical specifications. if higher drive levels are required refer to sl23ep09nz fanout buffer product. output clock skew all outputs should drive the similar load to achieve output- to-output skew specifications as given in the switching electrical tables. power supply range (vdd) the sl2309nz is designed to operate 3.3v+/-10% (3.63v- max to 2.97v-min) vdd power supply range. an internal on-chip voltage regulator is used to provide to constant power supply of 1.8v, leading to a consistent and stable electrical performance in terms of skew and jitter. the sl2309nz i/o is powered by using vdd=3.3v+/-10%. refer to sl23ep09nz products for dc to 220mhz-max frequency range, 2.5v power supply operation, improved skew, jitter and higher drive options. contact sli for 1.8v power supply buffers and zdb products. absolute maximum ratings (c-grade and i-grade) description condition min max unit supply voltage, vdd -0.5 4.2 v all inputs and outputs -0.5 vdd+0.5 v ambient operating temperature in operation, c-grade 0 70 c ambient operating temperature in operation, i-grade -40 85 c storage temperature no power is applied -65 150 c junction temperature in operation, power is applied ? 125 c soldering temperature ? 260 c esd rating (human body model) jedecc22-a114d -4,000 4,000 v esd rating (charge device model) jedecc22-c101c -1,500 1,500 v esd rating (machine model) jedecc22-a115d -200 200 v
rev 2.4, may 16, 2008 page 4 of 8 sl2309nz operating conditions (c-grade and i-grade) unless otherwise stated vdd= 3.3v+/- 10%, cl=15pf description symbol condition min typ max unit operating voltage vdd vdd+/-10% 2.97 3.3 3.63 v ta1 ambient temperature c-grade 0 ? 70 c operating temperature ta2 ambient temperature i-grade -40 ? 85 c input capacitance vinc pin 1 ? 3 6 pf cl1 all outputs 100mhz ? ? 30 pf load capacitance cl2 all outputs 140mhz ? ? 15 pf operating frequency clkin buffer clock range dc ? 140 mhz dc electrical characteristics (c-grade) unless otherwise stated vdd= 3.3v+/- 10%, cl=15pf and ambient temperature range 0 to +70c description symbol condition min typ max unit input low voltage vinl clkin ? ? 0.8 v input high voltage vinh clkin 2.0 ? vdd+0.3 v input low current iinl 0 < vin < 0.8v ? ? 10 a input high current iinh 2.4v < vin < vdd ? ? 15 a output low voltage vol i ol =12ma ? ? 0.4 v output high voltage voh i oh =-12ma 2.4 ? ? v power supply current idd1 clkin=33.3mhz, cl=0 ? 9 13 ma power supply current idd2 clkin=66.6mhz, cl=0 ? 11 16 ma power supply current idd3 clkin=133.3mhz, cl=0 ? 14 20 ma switching electrical characteristics (c-grade) unless otherwise stated vdd= 3.3v+/- 10%, cl=15pf and ambient temperature range 0 to +70c description symbol condition min typ max unit fout1 cl=15pf 0 ? 140 mhz output frequency range fout2 cl=30pf 0 ? 100 mhz input duty cycle dc1 measured at vdd/2 20 50 80 % output duty cycle dc2 cl=15pf, fout=140 mhz measured at vdd/2 45 50 55 % output duty cycle dc3 cl=30pf, fout=100 mhz measured at vdd/2 40 50 60 % output rise/fall time tr/f-1 measured at 0.8v to 2.0v cl=15pf ? ? 2.0 ns
rev 2.4, may 16, 2008 page 5 of 8 sl2309nz switching electrical characteristics (c-grade ? cont.) unless otherwise stated vdd= 3.3v+/- 10%, cl=15pf and ambient temperature range 0 to +70c output rise/fall time tr/f-2 measured at 0.8v to 2.0v cl=30pf ? ? 2.4 ns output skew skw1 measured at vdd/2 and outputs are equally loaded ? 50 100 ps part to part skew skw2 measured at vdd/2 and outputs are equally loaded ? 100 200 ps propagation delay time pdt measured at vdd/2 from clkin to output clock rising edge and outputs are equally loaded 2.5 3.5 4.5 ns cycle-to-cycle jitter ccj1 clkin=66mhz and cl=0 (no load) ? 75 150 ps cycle-to-cycle jitter ccj2 clkin=133mhz and cl=0 (no load) ? 50 100 ps dc electrical characteristics (i-grade) unless otherwise stated vdd= 3.3v+/- 10%, cl=15pf and ambient temperature range -40 to +85c description symbol condition min typ max unit input low voltage vinl buf_in ? ? 0.8 v input high voltage vinh buf_in 2.0 ? vdd+0.3 v input low current iinl 0 < vin < 0.8v ? ? 10 a input high current iinh 2.4v < vin < vdd ? ? 15 a output low voltage vol i ol =12ma ? ? 0.4 v output high voltage voh i oh =-12ma 2.4 ? ? v power supply current idd1 clkin=33.3mhz, cl=0 ? 10 15 ma power supply current idd2 clkin=66.6mhz, cl=0 ? 12 18 ma power supply current idd3 clkin=133.3mhz, cl=0 ? 16 22 ma switching electrical characteristics (i-grade) unless otherwise stated vdd= 3.3v+/- 10%, cl=15pf and ambient temperature range -40 to +85c description symbol condition min typ max unit fout1 cl=15pf 0 ? 140 mhz output frequency range fout2 cl=30pf 0 ? 100 mhz input duty cycle dc1 measured at vdd/2 20 50 80 % output duty cycle dc2 cl=15pf, fout=140 mhz measured at vdd/2 45 50 55 % output duty cycle dc3 cl=30pf, fout=100 mhz measured at vdd/2 40 50 60 %
rev 2.4, may 16, 2008 page 6 of 8 sl2309nz switching electrical characteristics (i-grade ? cont.) unless otherwise stated vdd= 3.3v+/- 10%, cl=15pf and ambient temperature range -40 to +85c output rise/fall time tr/f-1 measured at 0.8v to 2.0v cl=15pf ? ? 2.2 ns output rise/fall time tr/f-2 measured at 0.8v to 2.0v cl=30pf ? ? 2.6 ns output skew skw1 measured at vdd/2 and outputs are equally loaded ? 60 120 ps part to part skew skw2 measured at vdd/2 and outputs are equally loaded ? 120 240 ps propagation delay time pdt measured at vdd/2 from clkin to output clock rising edge and outputs are equally loaded 2.0 3.5 4.8 ns cycle-to-cycle jitter ccj1 clkin=66mhz and cl=0 (no load) ? 80 160 ps cycle-to-cycle jitter ccj2 clkin=133mhz and cl=0 (no load) ? 60 120 ps external components & design considerations typical application schematic comments and recommendations decoupling capacitor: a decoupling capacitor of 0.1 f must be used between all vdd and vss pins. place the capacitor on the component side of the pcb as close to the vdd pin as possible. the pcb trace to the vdd pin and to the gnd via should be kept as short as possible. do not use vias between the decoupling capacitor and the vdd pin. series termination resistor: a series termination resistor is recommended if the distance between the output clocks and the load is over 1 ? inch. place the series termination resistors as close to the clock outputs as possible.
rev 2.4, may 16, 2008 page 7 of 8 sl2309nz package outline and package dimensions thermal characteristics parameter symbol condition min typ max unit ja still air - 78 - c/w ja 1m/s air flow - 74 - c/w thermal resistance junction to ambient ja 3m/s air flow - 70 - c/w thermal resistance junction to case jc independent of air flow - 44 - c/w
rev 2.4, may 16, 2008 page 8 of 8 sl2309nz ordering information [1] ordering number marking shipping package package temperature sl2309nzsc-1h sl2309nzsc-1h tube 16-pin soic 0 to 70c sl2309nzsc-1ht sl2309nzsc-1h tape and reel 16-pin soic 0 to 70c sl2309nzsi-1h sl2309nzsi-1h tube 16-pin soic -40 to 85c SL2309NZSI-1HT sl2309nzsi-1h tape and reel 16-pin soic -40 to 85c note: 1. the sl2309nz products are rohs compliant. while sli has reviewed all information herein for accuracy and reliability, spectra linear inc. assumes no responsibility for t he use of any circuitry or for the infringement of any patents or other rights of third parties which would result from each use. thi s product is intended for use in normal commercial applications and is not warranted not is it intended for use in life support, critical medical instruments, or any other application requiring extended temperat ure range, high reliability, or any other extraordinary enviro nmental requirements unless pursuant to additional processing by spectra linear inc., and an expressed written agreement by spectra linear inc. spectra linear inc. reserves the right to change any circuitry or specification without notice.
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