1 sy100e310l micrel, inc. m9999-072106 hbwhelp@micrel.com or (408) 955-1690 description guaranteed ac performance over temperature and voltage: > 800mhz f max (typical) < 50ps within-device skew low voltage operation: lvpecl: +3.3v 10% lvecl: ?.3v 10% internal 75k ? pull-down resistors guaranteed over industrial temperature range: ?0 c to +85 c pin-for-pin, plug-in replacement for mc100lve310 available in 28-pin plcc package features 3.3v ecl/pecl 2:8 differential fanout buffer sy100e310l applications communications clock distribution redundant clock switchover high-end server clock distribution rev.: d amendment: /1 issue date: july 2006 the sy100e310l is a 3.3v, precision 2:8 ecl/pecl fanout buffer optimized for precision low-skew clock distribution. the sy100e310l features fully differential clock paths to minimize both device and system skew resulting in skew performance of < 50ps. in addition, the device includes a 2:1 multiplexer input for redundant switchover applications. the sy100e310l is optimized for low voltage +3.3v lvpecl or ?.3v lvecl applications. data sheets and support documentation can be found on micrel? web site at www.micrel.com. functional block diagram micrel semiconductor on semiconductor sy100e310lji mc100lve310fn sy100e310ljitr mc100lve310fnr2 cross reference table clka /clka /clkb sel clkb q0 /q0 q1 /q1 q2 /q2 q3 /q3 q4 /q4 q5 /q5 q6 /q6 q7 /q7 v bb 0 100 200 300 400 500 600 700 800 900 0 200 400 600 800 1000 1200 1400 1600 q amplitude (mv) clk frequency (mhz) output swing vs. frequency typical performance
2 sy100e310l micrel, inc. m9999-072106 hbwhelp@micrel.com or (408) 955-1690 package/ordering information pin number pin name pin function 1 vcc positive core power supply. bypass with 0.1 f || 0.01 f low esr capacitors. not internally connected to v cco . must be externally connected to v cco on pcb. 28, 2, 4, 5 clka, /clka differential inputs: these input pairs are the differential data inputs to the device. clkb, /clkb 3 vbb reference voltage output. used for ac-coupled inputs or single-ended inputs. 6 nc no connect. 8, 15, 22 vcco positive power supply. bypass with 0.1 f || 0.01 f low esr capacitors. not internally connected to v cc . must be externally connected to v cc on pcb. 24, 21, 19, /q0, /q1, /q2, /q3 differential outputs. 17, 14, 12, 10, 7 /q4, /q5, /q6, /q7 25, 23, 20, 18, q0, q1, q2, q3 differential outputs. 16, 13, 11, 9, q4, q5, q6, q7 26 vee negative supply. 27 clk_sel single-ended clock select. pin description /clkb nc /q7 vcco q7 /q6 q6 q0 /q0 q1 vcco /q1 q2 /q2 4 5 6 7 8 9 10 11 25 24 23 22 21 20 19 321282726 12 13 14 15 16 17 18 q4 vcco /q4 q5 /q5 clka vcc /clka vbb clkb /q3 q3 clk_sel vee 28-pin plcc (j28-1) ordering information (1) package operating package lead part number type range marking finish sy100e310lji j28-1 industrial sy100e310lji sn-pb sy100e310ljitr (2) j28-1 industrial sy100e310lji sn-pb sy100e310ljy (3) j28-1 industrial sy100e310ljy with matte-sn pb-free bar-line indicator sy100e310ljytr (2, 3) j28-1 industrial sy100e310ljy with matte-sn pb-free bar-line indicator 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.
3 sy100e310l micrel, inc. m9999-072106 hbwhelp@micrel.com or (408) 955-1690 absolute maximum ratings (1) supply voltage (v cc ) ................................. 0.5v to +4.0v input voltage (v in ) ........................................ 0.5v to v cc termination current (3) source or sink current on v bb (i bb ) ..................... 0.5ma input current source or sink current (clka, /clka, clkb, /clkb, clk_sel) ......... 50ma lead temperature (soldering, 20 sec.) ................... +260 c storage temperature (t s ) ...................... 65 c to +150 c operating ratings (2) supply voltage (v cc ) ................................. +3.0v to +3.6v ambient temperature (t a ) ........................ 40 c to +85 c package thermal resistance plcc ( ja ) still-air ......................................................... 63.5 c/w 500lfpm ........................................................ 43.5 c/w t a = 40 c to +85 c; unless noted. symbol parameter condition min typ max units v cc power supply 3.0 3.3 3.6 v dc electrical characteristics (4) v cc = +3.3v, v ee = 0v; t a = 40 c to +85 c; unless noted. symbol parameter condition min typ max units i cc power supply current no load, max. v cc 55 70 ma v oh output high voltage r l = 50 ? to v cc 2v 2215 2345 2420 mv (q0-q7, /q0-/q7) v ol output low voltage r l = 50 ? to v cc 2v 1470 1595 1680 mv (q0-q7, /q0-/q7) v ih input high voltage 2135 2420 mv (clka, /clka, clkb, /clkb, clk_sel) v il input low voltage 1490 1825 mv (clka, /clka, clkb, /clkb, clk_sel) v ihcmr input high voltage common note 6 1.8 2.9 v mode range (differential) (clka, / clka, clkb, /clkb) v bb output reference voltage 1.92 2.04 v i in input high current 150 a (clka, /clka, clkb,/clkb, clk_sel) i il input low current 0.5 a (clka, /clka, clkb, /clkb, clk_sel) notes: 1. permanent device damage may occur if absolute maximum ratings are exceeded. this is a stress rating only and functional oper ation is not implied at conditions other than those detailed in the operational sections of this data sheet. exposure to absolute maximum ratlng con ditions 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. due to the limited drive capability use for input of the same package only. 4. the circuit is designed to meet the dc specifications shown in the above table after thermal equilibrium has been established . 5. input and output parameters vary 1:1 with v cc . v cc can vary 0.3v. 6. v ihcmr is defined as the range within which the v ih level may vary with the device still meeting the propagation delay specification. the v il level must be such that the peak-to-peak voltage is less than 1.0v and then greater than or equal to v pp (min). lvpecl dc electrical characteristics (4, 5)
4 sy100e310l micrel, inc. m9999-072106 hbwhelp@micrel.com or (408) 955-1690 v cc = +3.3v, v ee = 0v; t a = 40 c to +85 c; unless noted. symbol parameter condition min typ max units v oh output high voltage r l = 50 ? to v cc 2v 1085 955 880 mv (q0-q7, /q0-/q7) v ol output low voltage r l = 50 ? to v cc 2v 1830 1705 1620 mv (q0-q7, /q0-/q7) v ih input high voltage 1165 880 mv (clka, /clka, clkb, /clkb, clk_sel) v il input low voltage 1810 1475 mv (clka, /clka, clkb, /clkb, clk_sel) v ihcmr input high voltage common note 9 1.5 0.4 v mode range (differential) (clka, / clka, clkb, /clkb) v bb output reference voltage 1.38 1.26 v i in input high current 150 a (clka, /clka, clkb,/clkb, clk_sel) i il input low current 0.5 a (clka, /clka, clkb, /clkb, clk_sel) lvnecl dc electrical characteristics (7, 8) v cc = +3.0 to +3.6v and v ee = 0v or v cc = 0v and v ee = 3.0 to 3.6v; t a = 40 c to +85 c; unless noted. symbol parameter condition min typ max units f max maximum operating frequency v out = 400mv 800 mhz t pd propagation delay note 10 525 725 ps clka-to-q, clkb-to-q (differential) clka-to-q, clkb-to-q (single-ended) note 11 500 750 ps t skew within-device skew note 12 50 ps part-to-part skew (differential) 200 ps t jitter cycle-to-cycle jitter 1ps rms v pp input swing note 13 500 1000 mv t r , t f rise / fall time (20% to 80%) 160 375 600 ps (q0-q7, /q0-/q7) notes: 7. the circuit is designed to meet the dc specifications shown in the above table after thermal equilibrium has been established . 8. input and output parameters vary 1:1 with v cc . v cc can vary 0.3v. 9. v ihcmr is defined as the range within which the v ih level may vary with the device still meeting the propagation delay specification. the v il level must be such that the peak-to-peak voltage is less than 1.0v and then greater than or equal to v pp (min). 10. the differential propagation delay is defined as the delay from the crossing points of the differential input signals to the crossing point of the differential output signals. 11. the single-ended propagation delay is defined as the delay from the 50% point of the input signal to the 50% point of the ou tput signal. 12. the within-device skew is defined as the worst case difference between any two similar delay paths within a single device. 13. v pp (min) is defined as the minimum input differential voltage which will cause no increase in the propagation delay. the v pp (min) is ac limited for the e310l as a differential input as low as 50 mv will still produce full ecl levels at the output. ac electrical characteristics
5 sy100e310l micrel, inc. m9999-072106 hbwhelp@micrel.com or (408) 955-1690 part number function data sheet link hbw solutions new products and applications www.micrel.com/product-info/products/solutions.shtml related product and support documentation typical operating characteristics v cc = 3.3v, t a = 25 c 0 100 200 300 400 500 600 700 800 900 0 200 400 600 800 1000 1200 1400 1600 q amplitude (mv) clk frequency (mhz) output swing vs. frequenc y 500 525 550 575 600 625 650 675 700 -50 -25 0 25 50 75 100 propagation delay (ps) temperature ( c) (forced air) input to q propagation delay vs. temperature clk-q(diff) sel-q clk-q ( s-e )
6 sy100e310l micrel, inc. m9999-072106 hbwhelp@micrel.com or (408) 955-1690 28-pin plcc (j28-1) rev. 03 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 as sumed 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 malfu nction of a product can reasonably be expected to result in personal injury. life support devices or systems are devices or systems that (a) are intend ed 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 inj ury to the user. a purchaser s use or sale of micrel products for use in life support appliances, devices or systems is at purchaser s own risk and purchaser agrees to fully indemnify micrel for any damages resulting from such use or sale. ? 2006 micrel, incorporated.
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