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sy56017r low voltage 1.2v/1.8v/2.5v cml 2:1 mux 6.4gbps with equalization preliminary precision edge is a registered trademark of micrel, inc. mic rel inc. ? 2180 fortune drive ? san jose, ca 95131 ? usa ? tel +1 (408) 944 - 0800 ? fax + 1 (408) 474 - 1000 ? http://www.micrel.com july 2008 m9999 -0703 08 -a hbwhelp@micrel.com or (408) 955 - 1690 general description the sy56017r is a fully differential, low voltage 1.2v/1.8v/2.5v cml 2:1 mux with input equalization. the sy56017r can process clock signals as fast as 4.5 ghz or data patterns up to 6.4gbps. the differential input includes micrel?s unique, 3 - pin input termination architecture that interfaces to cml differential signals, without any level - shifting or termination resistor networks in the signal path. the differential input can also accept ac - coupled lvpecl and lvds signals. input volta ges as small as 200mv (400mv pp ) are applied before the 9?, 18? or 27? fr4 transmission line. for ac - coupled input interface applications, an internal voltage reference is provided to bias the v t pin. the outputs are cml, with extremely fast rise/fall times guaranteed to be less than 80ps. the sy56017r operates from a 2.5v 5% core supply and a 1.2v, 1.8v or 2.5v 5% output supply and is guaranteed over the full industrial temperature range ( ? 40c to +85c). the sy56017r is part of micrel?s high - speed, prec ision edge ? product line. data sheets 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/2.5v cml 2:1 m ux ? equalizes 9, 18, 27 inches of fr4 ? guaranteed ac performance over temperature and voltage: ? dc- to > 6.4gbps data throughput ? dc- to > 4.5ghz clock throughput ? <280 ps propagation delay (in - to - q) ? <20ps input skew ? <80ps rise/fall times ? ultra - low jitter design ? <1ps rms cycle - to - cycle jitter ? high - speed cml outputs ? 2.5v 5% v cc , 1.2/1.8v/2.5v 5% v cco power supply operation ? industrial temperature range: ? 40c to +85c ? available in 16 - pin (3mm x 3mm) qfn package applications ? data distribution: ? son et clock and data distribution ? fiber channel clock and data distribution ? gigabit ethernet clock and data distribution markets ? storage ? ate ? test and measurement ? enterprise networking equipment ? high - end servers ? metro area network equipment
micrel, inc. sy5 6017r july 2008 2 m9999 -070308 -a hbwhelp@micrel.com or (408) 955 - 1690 ordering informati on (1) part number package type operating range package marking lead finish SY56017RMG qfn -16 industrial r017 with pb - free bar - line indicator nipdau pb - free SY56017RMGtr (2) qfn -16 industrial r017 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 qfn truth table sel output 0 in0 input selected 1 in1 input selected eq equalization low 27 ? float 18? h igh 9?
micrel, inc. sy5 6017r july 2008 3 m9999 -070308 -a hbwhelp@micrel.com or (408) 955 - 1690 pin description pin number pin name pin function 16,1 4,5 in0, /in0 in1, /in1 differential inputs: signals as small as 200mv v pk (400mv pp ) applied to the input of 9, 18 or 27 inches 6 mil fr4 stripline transmission line are then terminated with the differential input . each input pin internally terminates with 50 ? to the vt pin. 2 3 vt0 vt1 input termination center - tap: each side of the differential input pair terminates to a vt pin. this pin provides a center - tap to a termination network for maximum interface flexibility. an internal high impedance resistor divider biases vt to allow input ac - coupling. for ac - coupling, bypass vt with 0.1f low esr capacitor to vcc. see ?interface applications? subsection and figure 2a. 6 eq three level inpu t for equalization control. high, float, low. eq pin applies the same eq setting to both inputs. 15 sel this single - ended ttl/cmos - compatible input selects the inputs to the multiplexer. note that t his input is internally connected to a 25k ? pull - up resistor and will default to a logic high state if left open. 7 vcc positive power supply: bypass with 0.1f//0.01f low esr capacitors as close to the v cc pins as possible. supplies input and core circu itry. 8,13 vcco output supply: bypass with 0.1f//0.01f low esr capacitors as close to the v cco pins as possible. supplies the output buffers. 14 gnd, exposed pad ground: exposed pad must be connected to a ground plane that is the same potential as the ground pins. 11,10 q, /q cml differential output pair: differential buffered copy of the input signal. the output swing is typically 390mv. see ?interface applications? subsection for termination information.
micrel, inc. sy56017r july 2008 4 m9999 -070308 -a hbwhelp@micrel.com or (408) 955 - 1690 absolute maximum ratings (1) supply vol tage (v cc ) ............................... ? 0.5v to +3.0v supply voltage (v cco ) ............................. ? 0.5v to +3.0v 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 3.0v current (v t ) source or sink on vt pin ............................. 100ma input current source or sink current on (in, /in) ................ 50ma maximum operating junction temperature .......... 125c lead temperature (soldering, 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 2. 625v ambient temperature (t a ) ................... ? 40c to +85c package thermal resistance (3) qfn still - air ( ja ) ............................................ 75c/w junction - to - board ( jb ) ......................... 33 c/w dc electrical characteristics (4) 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 v cco 2.375 1.14 1.7 2.375 2.5 1.2 1.8 2.5 2.625 1.26 1.9 2.625 v v v v i cc power supply current max. v cc 55 80 ma i cco power supply current no load. v cco 16 21 ma r in input resistance (in -to -v t , /i n -to -v t ) 45 50 55 ? r diff_in differential input resistance (in -to - /in) 90 100 110 ? v ih input high voltage (in, /in) in, /in 1.42 v cc v v il input low voltage (in, /in) in, /in 1.22v = 1.7 - 0.475 1.22 v ih ? 0.2 v v in input voltage swing (in, /in) see figure 3a, note 5, a pplied to input of transmission line. 0.2 1.0 v v diff_in differential input voltage swing (|in - /in|) see figure 3b, note 5, applied to input of transmission line. 0.4 2.0 v v t_in voltage from input to v t 1.28 v notes: 1. permanent device damage m ay occur if absolute maximum ratings are exceeded. this is a stress rating only and functional operation is not implied at conditions other than those detailed in the operational sections of this data sheet. exposure to absolute maximum ratings conditions for extended periods may affect device reliability. 2. the data sheet limits are not guaranteed if the device is operated beyond the operating ratings. 3. package thermal resistance assumes exposed pad is soldered (or equivalent) to the device's most nega tive potential on the pcb. jb and ja values are determined for a 4 - layer board in still - air number, unless otherwise stated. 4. the circuit is designed to meet the dc specifications shown in the above table after thermal equilibrium has been established . 5. v in (max) is specified when v t is floating.
micrel, inc. sy56017r july 2008 5 m9999 -070308 -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, 2.375v to 2.625v, r l = 50 ? to v cco or 100 ? across the outputs, v cc = 2.375v to 2.625v; t a = ? 40c to +85c, unless otherwis e stated. symbol parameter condition min typ max units v oh output high voltage r l = 50 ? to v cco v cc - 0.020 v cc - 0.010 v cc 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 o ut output source impedance 45 50 55 ? lvttl/cmos dc electrical characteristics (6) v cc = 2.375v to 2.625v; t a = ? 40c to +85c, unless otherwise stated. symbol parameter condition min typ max units v ih input high voltage 2.0 v cc v v il input low vol tage 0.8 v i ih input high current -125 30 a i il input low current -300 a three level eq input dc electrical characteristics (6) v cc = 2.375v to 2.625v; t a = ? 40c to +85c, unless otherwise stated. symbol parameter condition min typ max unit s v ih input high voltage v cc - 0.3 v cc v v il input low voltage 0 v ee +0.3 v i ih input high current vih = v cc 400 a i il input low current vil = gnd -480 a note: 6. the circuit is designed to meet the dc specifications shown in the above table af ter thermal equilibrium has been established.
micrel, inc. sy56017r july 2008 6 m9999 -070308 -a hbwhelp@micrel.com or (408) 955 - 1690 ac electrical characteristics v cco = 1.14v to 1.26v r l = 50 ? to v cco, v cco = 1.7v to 1.9v, 2.375v to 2.625v, 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 f max maximum frequency nrz data 6.4 gbps v out > 200mv clock 4.5 ghz t pd propagation delay in -to - q sel -to - q note 7, figure 1 100 180 280 ps figure 1 90 210 350 ps t skew input -to - input skew note 8 20 ps part -to - part skew note 9 100 ps t jitter random jitter note 10 1 ps rms crosstalk induced jitter (adjacent channel) note 11 0.7 ps pp t r t f output rise/fall time (20% to 80%) at full output swing. 20 50 80 ps notes: 7. propagation delay is measured with no attenuating transmission li ne connected to the input. 8. input - to - input skew is the difference in time between both inputs and the output for the same temperature, voltage and transition. 9. part - to - part skew is defined for two parts with identical power supply voltages at the same temperature and no skew at the edges at the respective inputs. 10. random jitter is measured with a k28.7 pattern, measured at f max . 11. crosstalk induced jitter is defined as the added jitter that results from signals applied to the adjacent channel. it is measured at the output while applying a similar, differential clock frequencies that are asynchronous with respect to each other at the adjacent input.
micrel, inc. sy56017r july 2008 7 m9999 -070308 -a hbwhelp@micrel.com or (408) 955 - 1690 interface applications for input interface applications see figures 4a - e and for cml output ter mination see figures 5a - d. cml output termination with vcco 1.2v for vcco of 1.2v, figure 5a , terminate the output with 50 ohms to 1.2v, not 100 ohms differentially across the outputs. if ac - coupling is used, figure 5d, terminate into 50 ohms to 1.2v befo re the coupling capacitor and then connect to a high value resistor to a reference voltage. any unused output pair needs to be terminated, do not leave floating. cml output termination with vcco 1.8v for vcco of 1.8v, figure 5a and figure 5b, termin ate with either 50 ohms to 1.8v or 100 ohms differentially across the outputs. ac - or dc - coupling is fine. input termination 1.8v cml driver: terminate input with vt tied to 1.8v. don?t terminate 100 ohms differentially. 2.5v cml driver: terminate input with either vt tied to 2.5v or 100 ohms differentially. the input cannot be dc coupled from a 1.2v cml driver. timing diagrams figure 1. propagation delay
micrel, inc. sy56017r july 2008 8 m9999 -070308 -a hbwhelp@micrel.com or (408) 955 - 1690 typical characteristics v cc = 2.5, v cco = 1.2v, gnd = 0 v, v in = 400mv, r l = 50 ? to 1.2v, data pattern: 2 23 - 1, t a = 25c, unless otherwise stated.
micrel, inc. sy56017r july 2008 9 m9999 -070308 -a hbwhelp@micrel.com or (408) 955 - 1690 input and output stage figure 2a. simplified differential input buffer figure 2b. simplified cml output buffer single- ended and differential swings figure 3a. single - ended swing figure 3b. differential swing
micrel, inc. sy56017r july 2008 10 m9999 -070308 -a hbwhelp@micrel.com or (408) 955 - 1690 input interface applications figure 4a. cml interface 100 ? differential (dc - coupled, 2.5v) figure 4b. cml interface 50 ? to v cc (dc - coupled, 1.8v, 2.5v) figure 4c. cml interface (ac - coupled) figure 4d. lvpecl interface (ac - coupled) figure 4e. lvds interface (ac - coupled)
micrel, inc. sy56017r july 2008 11 m9999 -070308 -a hbwhelp@micrel.com or (408) 955 - 1690 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 v cco 1.8v only figure 5d. cml ac - coupled termination v cco 1.2v only related product and support documents part number function datasheet link hbw solutions new products and termination application notes http://www.mic rel.com/page.do?page=/product - info/as/hbwsolutions.shtml
micrel, inc. sy56017r july 2008 12 m9999 -070308 -a hbwhelp@micrel.com or (408) 955 - 1690 package information 16- pin qfn 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 believed to be accurate and reliable. however, no responsibility is assumed by micrel for its use. micrel reserves the right to change circuitry and specifications at any time without notification to the customer. micrel products are not designed or authorized for use as components in life support appliances, devices or systems where malfunction of a product can reasonably be expected to result in personal injury. life support devices or systems are devices or syste ms 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 res ult in a significant injury to the user. a purchaser?s use or sale of micrel products for use in life support appliances, devices or systems is a purchaser?s own risk and purchaser agrees to fully indemnify micrel for any damages resulting from such use or sale. ? 2008 micrel, incorporated.

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