sy54011r low voltage 1.2v/1.8v cml 1:2 fanout buffer, 3.2gbps, 3.2ghz precision edge is a registered trademark of micrel, inc. mlf and micro leadframe are registered trademarks of amkor technology. micrel inc. ? 2180 fortune drive ? san jose, ca 95131 ? usa ? tel +1 (408) 944-0800 ? fax + 1 (408) 474-1000 ? http://www.micrel.com general description the sy54011r is a fully differential, low voltage 1.2v/1.8v cml 1:2 fanout buffer. it is optimized to provide two identical output copies with less than 15ps of skew and less than 10ps pp total jitter. the sy54011r can process clock signals as fast as 3.2ghz or data patterns up to 3.2gbps. the differential input includes micrel?s unique, 3-pin input termination architecture that interfaces to lvpecl, lvds or cml differential signals, (ac- or dc-coupled from a 2.5v driver) as small as 100mv (200mv pp ) without any level-shifting or termination resistor networks in the signal pat h. for ac-coupled input interface applications, an integrated voltage reference (v ref-ac ) is provided to bias the vt pin. the outputs are cml, with extremely fast rise/fall times guaranteed to be less than 95ps. the sy54011r operates from a 2.5v 5% core supply and a 1.8v or 1.2v 5% output supply and is guaranteed over the full industrial temperature range (?40c to +85c). the sy54011r is part of micrel?s high-speed, precision edge ? product line. datasheets and support documentation can be found on micrel?s web site at: www.micrel.com . functional block diagram precision edge ? features ? 1.2v/1.8v cml 1:2 fanout buffer ? guaranteed ac performance over temperature and voltage: ? dc-to- > 3.2gbps throughput ? <300ps propagation delay (in-to-q) ? <15ps within-device skew ? <95ps rise/fall times ? ultra-low jitter design ? <1ps rms random jitter ? high-speed cml outputs ? 2.5v 5% , 1.8/1.2v 5% power supply operation ? industrial temperature range: ?40c to +85c ? available in 16-pin (3mm x 3mm) mlf ? package applications ? data distribution: oc-48, oc-48+fec ? sonet clock and data distribution ? fibre channel clock and data distribution ? gigabit ethernet clock and data distribution markets ? storage ? ate ? test and measurement ? enterprise networking equipment ? high-end servers ? access ? metro area network equipment june 2010 m9999-061110-a hbwhelp@micrel.com or (408) 955-1690
micrel, inc. sy54011r june 2010 2 m9999-061110-a hbwhelp@micrel.com ordering information (1) part number package type operating range package marking lead finish sy54011rmg mlf-16 industrial 011r with pb-free bar-line indicator nipdau pb-free sy54011rmgtr (2) mlf-16 industrial 011r with pb-free bar-line indicator nipdau pb-free notes: 1. contact factory for die availability. dice are guaranteed at t a = 25c, dc electricals only. 2. tape and reel. pin configuration 16-pin mlf ? (mlf-16) pin description pin number pin name pin function 1, 4 in, /in differential input: this input pair is the di fferential signal input to the device. input accepts differential signals as small as 100mv (200mv pp ). each input pin internally terminates with 50 ? to the vt pin. 2 vt input termination center-tap: each side of the differential input pair terminates to vt pin. this pin provides a center-tap to a termination network for maximum interface flexibility. see ?interface applications? subsection. 3 vref-ac reference voltage: this output biases to v cc ?1.15v. it is used for ac-coupling inputs in and /in. connect vref-ac directly to the vt pin. bypass with 0.1f low esr capacitor to vcc. maximum sink/source current is 0.5ma. see ?input interface applications? subsection. 5, 16 vcc positive power supply: bypass with 0.1uf//0.01uf low esr capacitors as close to the v cc pins as possible. supplies input and core circuitry. 8,13 vcco output supply: bypass with 0.1uf//0.01uf low esr capacitors as close to the v cco pins as possible. supplies the output buffers. 6, 7, 14, 15 gnd, exposed pad ground: exposed pad must be connected to a ground plane that is the same potential as the ground pins. 10, 9 11, 12 /q1, q1 /q0, q0 cml differential output pairs: differential buffered copies of the input signal. the output swing is typically 390mv. see ?i nterface applications? subsection for termination information. or (408) 955-1690
micrel, inc. sy54011r june 2010 3 m9999-061110-a hbwhelp@micrel.com or (408) 955-1690 absolute maximum ratings (1) supply voltage (v cc ) ............................... ?0.5v to +3.0v supply voltage (v cco ) ............................. ?0.5v to +2.7v v cc - v cco ...............................................................<1.8v v cco - v cc ...............................................................<0.5v input voltage (v in ) .......................................?0.5v to v cc cml output voltage (v out ) ............... 0.6v to v cco +0.5v current (v t ) source or sink current on vt pin .................100ma input current source or sink current on (in, /in) .................50ma current (v ref-ac ) source or sink current on v ref-ac (4) ..............0.5ma maximum operating junc tion temperature .......... 125c lead temperature (solde ring, 20sec .) .................. 260c storage temperature (t s ) ....................?65c to +150c operating ratings (2) supply voltage (v cc ) ...........................2.375v to 2.625v (v cco )??????...??1.14v to 1.9v ambient temperature (t a ) ................... ?40c to +85c package thermal resistance (3) mlf ? still-air ( ja ) ............................................ 75c/w junction-to-board ( jb ) ......................... 33c/w dc electrical characteristics (5) t a = ?40c to +85c, unless otherwise stated. symbol parameter condition min typ max units v cc power supply voltage range v cc v cco v cco 2.375 1.14 1.7 2.5 1.2 1.8 2.625 1.26 1.9 v v v i cc power supply current max. v cc 15 22 ma i cco power supply current no load. v cco 32 42 ma r in input resistance (in-to-v t , /in-to-v t ) 45 50 55 ? r diff_in differential input resistance (in-to-/in) 90 100 110 ? v ih v il input high voltage (in, /in) input low voltage (in, /in) in, /in v il with v ih of 1.2v 1.2 0.2 v cc v ih ?0.1 v v v ih v il input high voltage (in, /in) input low voltage (in, /in) in, /in v il with v ih of 1.14v, (1.2v-5%) 1.14 0.66 v cc v ih ?0.1 v v v in input voltage swing (in, /in) see figure 3a 0.1 1.0 v v diff_in differential input voltage swing (|in - /in|) see figure 3b 0.2 2.0 v v ref-ac output reference voltage v cc ?1.3 v cc ?1.15 v cc ?1.0 v v t_in voltage from input to v t 1.28 v notes: 1. permanent device damage may occur if absolute maximum ratings are exceeded. this is a stress rating only and functional ope ration is not implied at conditions other than those deta iled in the operational sections of this data sheet. exposure to absolute maximum ra tings conditions for extended periods may affect device reliability. 2. the data sheet limits are not guaranteed if t he device is operated beyond the operating ratings. 3. package thermal resistance assumes exposed pad is soldered (or equivalent) to the device's most negative potential on the pc b. jb and ja values are determined for a 4-layer board in still-air number, unless otherwise stated. 4. due to the limited drive capability, use for input of the same package only. 5. the circuit is designed to meet the dc specifications shown in the above table after thermal equilibrium has been establishe d.
micrel, inc. sy54011r june 2010 4 m9999-061110-a hbwhelp@micrel.com or (408) 955-1690 cml outputs dc electrical characteristics (6) v cco = 1.14v to 1.26v r l = 50 ? to v cco, v cco = 1.7v to 1.9v, r l = 50 ? to v cco or 100 ? across the outputs, v cc = 2.375v to 2.625v. t a = ?40c to +85c, unless otherwise stated. symbol parameter condition min typ max units v oh output high voltage r l = 50 ? to v cco v cco -0.020 v cco -0.010 v cco v v out output voltage swing see figure 3a 300 390 475 mv v diff_out differential output voltage swing see figure 3b 600 780 950 mv r out output source impedance 45 50 55 ? note: 6. the circuit is designed to meet the dc specifications shown in the above table after thermal equilibrium has been establishe d ac electrical characteristics v cco = 1.14v to 1.26v r l = 50 ? to v cco, v cco = 1.7v to 1.9v, r l = 50 ? to v cco or 100 ? across the outputs, v cc = 2.375v to 2.625v. t a = ?40c to +85c, unless otherwise stated. symbol parameter condition min typ max units nrz data 3.2 gbps f max maximum frequency v out > 200mv clock 3.2 ghz t pd propagation delay in-to-q figure 1a 150 205 300 ps within device skew note 7 3 15 ps t skew part-to-part skew note 8 75 ps t jitter random jitter 1 ps rms t r t f output rise/fall times (20% to 80%) at full output swing. 30 60 95 ps duty cycle differential i/o 47 53 % notes: 7. within device skew is measured between two di fferent outputs under ident ical input transitions. 8. part-to-part skew is defined for two parts with identical pow er supply voltages at the same temperature and no skew at the e dges at the respective inputs.
micrel, inc. sy54011r june 2010 5 m9999-061110-a hbwhelp@micrel.com interface applications for input interface applicat ions see figures 4a-f and for cml output termination see figures 5a-d. cml output termination with vcco 1.2v for vcco of 1.2v, figure 5a, terminate the output with 50 ? -to-1.2v, dc-coupled, not 100 ? differentially across the outputs. if ac-coupling is used, figure 5d, terminate into 50 ? - to-1.2v before the coupling capacitor and then connect to a high value resistor to a reference voltage. do not ac couple with internally terminated receiver. for example, 50 ? any-in input. ac-coupling will offset the output voltage by 200mv and this offset voltage will be too low for proper driver operation. any unused output pair needs to be terminated when vcco is 1.2v, do not leave floating. cml output termination with vcco 1.8v for vcco of 1.8v, figure 5a and figure b, terminate with either 50 ? -to-1.8v or 100 ? differentially across the outputs. ac- or dc-coupling is fine. input ac coupling the sy54011r input can accept ac coupling from any driver. tie vt to vref-ac and bypass with a 0.1f capacitor as shown in figures 4c and 4d. timing diagrams figure 1a. propagation delay or (408) 955-1690
micrel, inc. sy54011r june 2010 6 m9999-061110-a hbwhelp@micrel.com typical characteristics v cc = 2.5v, v cco = 1.2v, gnd = 0v, v in = 100mv; r l = 50 ? to 1.2v; t a = 25c, unless otherwise stated. functional characteristics v cc = 2.5v, v cco = 1.2v, gnd = 0v, v in = 100mv; r l = 50 ? to 1.2v, data pattern: 2 23 -1; t a = 25c, unless otherwise stated. or (408) 955-1690
micrel, inc. sy54011r june 2010 7 m9999-061110-a hbwhelp@micrel.com input and output stage figure 2a. simplified differential input buffer figure 2b. simplified cml output buffer single-ended and di fferential swings figure 3a. single-ended swing figure 3b. differential swing or (408) 955-1690
micrel, inc. sy54011r june 2010 8 m9999-061110-a hbwhelp@micrel.com input interface applications figure 4a. cml interface (dc-coupled, 1.8v, 2.5v) figure 4b. cml interface (dc-coupled, 1.2v) figure 4c. cml interface (ac-coupled) figure 4d. lvpecl interface (ac-coupled) figure 4e. lvpecl interface (dc-coupled) figure 4f. lvds interface or (408) 955-1690
micrel, inc. sy54011r june 2010 9 m9999-061110-a hbwhelp@micrel.com cml output termination figure 5a. 1.2v or 1.8v cml dc-coupled termination figure 5b. 1.8v cml dc-coupled termination figure 5c. cml ac-coupled termination (vcco 1.8v only) figure 5d. cml ac-coupled termination (vcco 1.2v only) related product and support documents part number function datasheet link hbw solutions new products and termination application notes http://www.micrel.com/page.do?page=/product- info/as/hbwsolutions.shtml or (408) 955-1690
micrel, inc. sy54011r june 2010 10 m9999-061110-a hbwhelp@micrel.com package information 16-pin mlf ? (3mm x3mm) (mlf-16) micrel, inc. 2180 fortune drive san jose, ca 95131 usa tel +1 (408) 944-0800 fax +1 (408) 474-1000 web http://www.micrel.com the information furnished by micrel in this data sheet is belie ved to be accurate and reliable. however, no responsibility is a ssumed by micrel for its use. micrel reserves the right to change circuitry and specificati ons at any time without notification to the customer. micrel products are not designed or authori zed for use as components in life support app liances, devices or systems where malfu nction of a product can reasonably be expected to result in personal injury. li fe support devices or systems are devices or systems that (a ) are intended for surgical implant into the body or (b) support or sustain life, and whose failure to perform can be reasonably expected to resul t in a significant injury to the user. a purchaser?s use or sale of micrel produc ts for use in life support applianc es, devices or systems is a purchaser?s own risk and purchaser agrees to fully indemnify micrel fo r any damages resulting from such use or sale. ? 2008 micrel, incorporated. or (408) 955-1690
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