1 ecl pro sy100ep57v micrel, inc.m9999-120505 hbwhelp@micrel.com or (408) 955-1690 description features 3.3v/5v pecl/ecl3ghz differential 4:1 multiplexer ecl pro sy100ep57v fully differential 4:1 pecl/ecl multiplexer guaranteed ac-parameters over temp/voltage: > 3ghz fmax (toggle) < 220ps rise/fall time < 520ps propagation delay (d-to-q) flexible power supply: 3.0v to 5.5v wide operating temp range: ?0 c to +85 c v bb reference for ac-coupled and single-ended applications 100k pecl/ecl compatible logic available in 20-pin tssop package the sy100ep57v is a high-speed, low-skew, fully differential pecl/ecl 4:1 multiplexer in a 20-pin tssoppackage. this device is a pin-for-pin, plug-in replacement to the mc10/100ep57dt. the signal-path inputs (d0:d3) accept differential signals as low as 150mvpk-pk. all i/o pins are 100k ep pecl/ecl logic compatible. ac?erformance is guaranteed over the industrial ?0 c to +85 c temperature range and 3.0v to 5.5v supply voltage range. this device will operate in pecl/lvpecl or ecl/lvecl mode. the sy100ep57 propagation delay is less than 520ps, and the select-to-valid output delay is less than 575ps over temperature and voltage. for clock applications, the high-speed design combined with an extremely fast rise/fall time of less than 220ps produces a toggle frequency as high as 3ghz (400mvpk-pk swing). two v bb output reference pins (approx equal to v cc ?.4v) are available for ac?oupled or single-ended applications. the sy100ep57v is part of micrel? high-speed, precision edge timing and distribution family. for applications thatrequire a different i/o combination, consult the micrel website at www.micrel.com, and choose from a comprehensive product line of high-speed, low skew fanout buffers, translators, and clock dividers. rev.: d amendment: /0 issue date: december 2005 micrel semiconductor on semiconductor sy100ep57vk4i mc100ep57dt sy100ep57vk4itr mc100ep57dtr2 cross reference table ecl pro ecl pro is a trademark of micrel, inc. downloaded from: http:///
2 ecl pro sy100ep57v micrel, inc.m9999-120505 hbwhelp@micrel.com or (408) 955-1690 pin description pin pin number function d0: d3 2, 4, 6, 8 input channels 0-3 pecl/ecl differential signal inputs. multiplexing of these 4 differential inputs /d0: /d3 3, 5, 7, 9 is controlled by sel0, sel1. the signal inputs include internal 75k ? pull-down resistors. default condition is low when left floating. the input signal should be terminated externally. see termination ?section vee 10, 11 negative power supply: for pecl/lvpecl applications, connect to ground. both v ee pins must be connected together, externally on the pcb, for proper operation. vbb1, vbb2 13, 12 reference output voltage. this reference is typically used to bias the unused inverting input for single-ended input applications, or as the termination point for ac?oupled differential inputapplications. v bb reference value is approximately v cc ?.4v, and tracks v cc 1:1. maximum sink/ source capability for each v bb reference pin is 0.50ma. for single ended pecl inputs, connect to the unused input through a 50 ? resistor. decouple the v bb pin with a 0.01 f capacitor. for pecl/ lvpecl inputs, the decoupling capacitor is connected to v cc , since pecl signals are referenced to v cc . leave floating if not used. /q, q 15, 16 100kep pecl/ecl compatible differential output. pecl/ecl termination is with a 50 ? resistor to v cc ?v. unused single-ended outputs must have a balanced load. for ac?oupled applications, the output stage emitter follower must have a dc current path to ground. see termination ?section. sel0, sel1 18, 19 100kep pecl/ecl compatible 4:1 mux select control. see mux select truth table. ? each pin includes an internal 75k ? pull-down resistor. default condition when left floating is low. vcc 1, 14, 17, 20 positive power supply. all v cc pins must be connected to the same power supply externally. bypass with 0.1 f//0.01 f low esr capacitors. package/ordering information 20-pin tssop (k4-20-1) ordering information (1) package operating package lead part number type range marking finish sy100ep57vk4i k4-20-1 industrial xep57v sn-pb sy100ep57vk4itr (2) k4-20-1 industrial xep57v sn-pb SY100EP57VK4G (3) k4-20-1 industrial xep57v with pb-free pb-free bar-line indicator nipdau SY100EP57VK4Gtr (2, 3) k4-20-1 industrial xep57v with pb-free pb-free bar-line indicator nipdau notes: 1. contact factory for die availability. dice are guaranteed at t a = 25 c, dc electricals only. 2. tape and reel. 3. pb-free package is recommended for new designs. 20 vccsel1 sel0 vcc q /q vcc vbb1 vbb2 vee 1918 17 16 15 14 13 12 11 12 3 4 5 6 7 8 9 10 vcc d0 /d0 d1 /d1 d2 /d2 d3 /d3 vee 4:1 mux select truth table sel1 sel0 data out l l d0, /d0 l h d1, /d1 h l d2, /d2 h h d3, /d3 downloaded from: http:///
3 ecl pro sy100ep57v micrel, inc.m9999-120505 hbwhelp@micrel.com or (408) 955-1690 symbol rating value unit v cc ? ee power supply voltage 6.0 v v in input voltage (v cc = 0v, v in not more negative than v ee ) ?.0 to 0 v input voltage (v ee = 0v, v in not more positive than v cc ) +6.0 to 0 v i out output current ?ontinuous 50 ma ?urge 100 i bb v bb sink/source current (2) 0.5 ma t lead lead temperature (soldering, 20sec.) +260 c t a operating temperature range ?0 to +85 c t store storage temperature range ?5 to +150 c ja package thermal resistance ?till-air (single-layer pcb) 115 c/w (junction-to-ambient) ?till-air (multi-layer pcb) 75 ?00lfpm (multi-layer pcb) 65 jc package thermal resistance 21 c/w (junction-to-case) notes: 1. permanent device damage may 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 ratlng conditions for extended periods may affect device reliability. 2. due to the limited drive capability, the v bb reference should only be used for inputs from the same package device (i.e., do not sue for other devices). absolute maximum ratings (1) t a = ?0 ct a = +25 ct a = +85 c symbol parameter min. typ. max. min. typ. max. min. typ. max. unit condition v cc power supply voltage v (pecl) 4.5 5.0 5.5 4.5 5.0 5.5 4.5 5.0 5.5 (lvpecl) 3.0 3.8 3.0 3.8 3.0 3.8 (ecl) ?.5 ?.0 ?.5 ?.5 ?.0 ?.5 ?.5 ?.0 ?.5 (lvecl) ?.8 ?.3 ?.0 ?.8 ?.3 ?.0 ?.8 ?.3 ?.0 i ee supply current 35 50 35 50 35 50 ma no load i ih input high current 75 75 80 av in = v ih i il input low current all inputs 0.5 0.5 0.5 av in = v il c in input capacitance (tssop) 1 . 0p f note: 1. 100kep circuits are designed to meet the dc specifications shown in the above table after thermal equilibrium has been established. the circuit is in a test socket or mounted on a printed circuit board and traverse airflow greater than 500lfpm is maintained. dc electrical characteristics (1) downloaded from: http:///
4 ecl pro sy100ep57v micrel, inc.m9999-120505 hbwhelp@micrel.com or (408) 955-1690 t a = ?0 ct a = +25 ct a = +85 c symbol parameter min. typ. max. min. typ. max. min. typ. max. unit condition v il input low voltage 1355 1675 1355 1675 1355 1675 mv (single-ended) v ih input high voltage 2075 2420 2075 2420 2075 2420 mv (single-ended) v ol outuput low voltage 1355 1480 1605 1355 1480 1605 1355 1480 1605 mv 50 ? to v cc ?v v oh output high voltage 2155 2280 2405 2155 2280 2405 2155 2280 2405 mv 50 ? to v cc ?v v bb output reference voltage 1775 1875 1975 1775 1875 1975 1775 1875 1975 mv v ihcmr input high voltage (2) 2.0 v cc 2.0 v cc 2.0 v cc v common mode range (100kep) lvpecl dc electrical characteristics (1) v cc = 3.3v 10%, v ee = 0v notes: 1. 100kep circuits are designed to meet the dc specifications shown in the above table after thermal equilibrium has been established. the circuit is in a test socket or mounted on a printed circuit board and traverse airflow greater than 500lfpm is maintained. input and output parameters are at v cc = 3.3v. they vary 1:1 with v cc . 2. the v ihcmr range is referenced to the most positive side of the differential input signal. t a = ?0 ct a = +25 ct a = +85 c symbol parameter min. typ. max. min. typ. max. min. typ. max. unit condition v il input low voltage 3055 3375 3055 3375 3055 3375 mv (single-ended) v ih input high voltage 3775 4120 3775 4120 3775 4120 mv (single-ended) v ol outuput low voltage 3055 3180 3305 3055 3180 3305 3055 3180 3305 mv 50 ? to v cc ?v v oh output high voltage 3855 3980 4105 3855 3980 4105 3855 3980 4105 mv 50 ? to v cc ?v v bb output reference voltage 3475 3575 3675 3475 3575 3675 3475 3575 3675 mv v ihcmr input high voltage (2) 2.0 v cc 2.0 v cc 2.0 v cc v common mode range (100kep) pecl dc electrical characteristics (1) v cc = 5.0v 10%, v ee = 0v notes: 1. 100kep circuits are designed to meet the dc specifications shown in the above table after thermal equilibrium has been established. the circuit is in a test socket or mounted on a printed circuit board and traverse airflow greater than 500lfpm is maintained. input and output parameters are at v cc = 3.3v. they vary 1:1 with v cc . 2. the v ihcmr range is referenced to the most positive side of the differential input signal. downloaded from: http:///
5 ecl pro sy100ep57v micrel, inc.m9999-120505 hbwhelp@micrel.com or (408) 955-1690 t a = ?0 ct a = +25 ct a = +85 c symbol parameter min. typ. max. min. typ. max. min. typ. max. unit condition v il input low voltage ?945 ?625 ?945 ?625 ?945 ?625 mv v ih input high voltage ?225 ?80 ?225 ?80 ?225 ?80 mv v ol outuput low voltage ?945 1820 ?695 ?945 ?820 ?695 ?945 ?820 ?695 mv 50 ? to v cc ?v v oh output high voltage ?145 1020 ?95 ?145 ?020 ?95 ?145 ?020 ?95 mv 50 ? to v cc ?v v bb output reference voltage ?525 1425 ?325 ?525 ?425 ?325 ?525 ?425 ?325 mv v ihcmr input high voltage (2) v ee +2.0 0.0 v ee +2.0 0.0 v ee +2.0 0.0 v common mode range (100kep) ecl/lvecl dc electrical characteristics (1) v cc = 0v, v ee = ?.5v to ?.0v notes: 1. 100kep circuits are designed to meet the dc specifications shown in the above table after thermal equilibrium has been established. the circuit is in a test socket or mounted on a printed circuit board and traverse airflow greater than 500lfpm is maintained. input and output parameters are at v cc = 3.3v. they vary 1:1 with v cc . 2. the v ihcmr range is referenced to the most positive side of the differential input signal. t a = ?0 ct a = +25 ct a = +85 c symbol parameter min. typ. max. min. typ. max. min. typ. max. unit condition f max max. toggle frequency (1) 3 ? 3 g h z t plh propagation delay (differential) t phl d to q, /q 250 310 450 250 315 475 250 320 520 ps sel to q, /q 300 370 500 300 380 520 300 390 575 ps t skew part-to-part skew (2) 200 200 200 ps t jitter cycle-to-cycle jitter (rms) 0.2 < 1 0.2 < 1 0.2 < 1 ps rms random jitter < 1p s rms note 3 deterministic jitter @1.25gbps < 2 5p s pp note 4 @2.5gbps < 5 0 v diff input voltage (differential) 150 800 1200 150 800 1200 150 800 1200 mv t r , t f output rise/fall time q, /q 120 170 140 200 150 220 ps (20% to 80%) notes: 1. measured with 750mv input signal, 50% duty cycle. output swing 400mv. all loading with a 50 ? to v cc ?.0v. 2. skew is measured between outputs under identical transitions. duty cycle skew is defined only for differential operation when the delays are measured from the cross point of the inputs to the cross point of the outputs. 3. rj is measured with a k28.7 comma detect character pattern, measured at 1.25gbps and 2.5gbps. 4. dj is measured at 1.25gbps and 2.5gbps, with both k28.5 and 2 23 ? prbs pattern. ac electrical characteristics v cc = 0v; v ee = ?.0v to ?.5v or v cc = 3.0v to 5.5v, v ee = 0v downloaded from: http:///
6 ecl pro sy100ep57v micrel, inc.m9999-120505 hbwhelp@micrel.com or (408) 955-1690 typical operating characteristics v cc = 3.3v, v ee = gnd, t a = 25 c, unless otherwise stated. 500mhz output time (300ps/div.) output swing (200mv/div.) t a = 25 c v cc = 3.3v v ee gnd v in = 800mv /q q 1.5ghz output time (100ps/div.) output swing (200mv/div.) t a = 25 c v cc = 3.3v v ee gnd v in = 800mv /q q 2.5ghz output time (60ps/div.) output swing (200mv/div.) t a = 25 c v cc = 3.3v v ee gnd v in = 800mv /q q 3.0ghz output time (55ps/div.) output swing (200mv/div.) t a = 25 c v cc = 3.3v v ee gnd v in = 800mv /q q 0 100 200 300 400 500 600 700 800 900 500 10001500 2000 2500 3000 3500 4000 output amplitude (mv) frequency (mhz) output amplitude vs. frequency t a = 25 c v cc = 3.3v v in = 800mv 280 290 300 310 320 330 340 350 360 -40-30 -20 -10 0 1020 30 40 50 60 70 80 90 propagation delay (ps) temperature ( c) propagation delay vs. temperature t a = 25 c v cc = 3.3v v in = 800mv downloaded from: http:///
7 ecl pro sy100ep57v micrel, inc.m9999-120505 hbwhelp@micrel.com or (408) 955-1690 termination recommendations r282 ? r282 ? z o = 50 ? z o = 50 ? +3.3v +3.3v v t = v cc ?v r1130 ? r1130 ? +3.3v figure 1. parallel termination?hevenin equivalent note: 1. for +5.0v systems: r1 = 82 ? , r2 = 130 ? . z = 50 ? z = 50 ? 50 ? 50 ? 50 ? +3.3v +3.3v source destination r b c1 (optional)0.01 f figure 2. three-resistor ??ermination notes: 1. power-saving alternative to thevenin termination. 2. place termination resistors as close to destination inputs as possible. 3. r b resistor sets the dc bias voltage, equal to v t . for +3.3v systems r b = 46 ? to 50 ? . for +5v systems, r b = 110 ? . +3.3v +3.3v z o = 50 ? r282 ? +3.3v +3.3v r1130 ? r1130 ? r282 ? v t = v cc ?v q /q 50 ? +3.3v 0.01 f v bb figure 3. terminating unused i/o notes: 1. unused output (/q) must be terminated to balance the output. 2. micrel's differential i/o logic devices include a v bb reference pin . 3. connect unused input through 50 ? to v bb . bypass with a 0.01 f capacitor to v cc , not gnd. 4. for +2.5v systems: r1 = 250 ? , r2 = 62.5 ? . downloaded from: http:///
8 ecl pro sy100ep57v micrel, inc.m9999-120505 hbwhelp@micrel.com or (408) 955-1690 20-pin tssop (k4-20-1) .10 .004 + .10?.00 + .004 ?.000 .05 0.002 + .10?.00 + .004 ?.000 .10 .004 rev. 01 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 datasheet 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 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 result in a significant injury to the user. a purchaser? use or sale of micrel products for use in life support appliances, devices or systems is at purchaser? own risk and purchaser agrees to fully indemnify micrel for any damages resulting from such use or sale. ?2005 micrel, incorporated. downloaded from: http:///
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