1 sy10e111 sy100e111 micrel, inc. m9999-032006 hbwhelp@micrel.com or (408) 955-1690 block diagram in v bb q 0 q 0 q 1 q 1 q 2 q 2 q 3 q 3 q 4 q 4 q 5 q 5 q 6 q 6 q 7 q 7 q 8 q 8 in en features low skew extended 100e v ee range of ?.2v to ?.5v guaranteed skew limits differential design v bb output enable input fully compatible with industry standard 10kh, 100k i/o levels 75k ? input pulldown resistors fully compatible with on semiconductor mc10e/100e111 available in 28-pin plcc package the sy10/100e111 are low skew 1-to-9 differential drivers designed for clock distribution in new, high- performance ecl systems. they accept one differential or single-ended input, with v bb used for single-ended operation. the signal is fanned out to nine identical differential outputs. an enable input is also provided such that a logic high disables the device by forcing all q outputs low and all /q outputs high. the device is specifically designed and produced for low skew. the interconnect scheme and metal layout are carefully optimized for minimal gate-to-gate skew within the device. wafer characterization and process control ensure consistent distribution of propagation delay from lot to lot. since the e111 shares a common set of ?asic processing with the other members of the eclinps family, wafer characterization at the point of device personalization allows for tighter control of parameters, including propagation delay. to ensure that the skew specification is met, it is necessary that both sides of the differential output are terminated into 50 ? , even if only one side is being used. ln most applications, all nine differential pairs will be used and, therefore, terminated. in the case where fewer than nine pairs are used, it is necessary to terminate at least the output pairs on the same package side (i.e. sharing the same v cco as the pair(s) being used on that side) in order to maintain minimum skew. the v bb output is intended for use as a reference voltage for single-ended reception of ecl signals to that device only. when using v bb for this purpose, it is recommended that v bb is decoupled to v cc via a 0.01 f capacitor. 1:9 differential clock driver with enable description sy10e111 sy100e111 rev.: e amendment: /0 issue date: march 2006 pin function in, /in differential input pair /en enable input q0, /q0 ?q8, /q8 differential outputs v bb v bb output v cco v cc to output pin names
2 sy10e111 sy100e111 micrel, inc. m9999-032006 hbwhelp@micrel.com or (408) 955-1690 timing diagrams figure 1. set-up time in t s /in /en /q q 50% 75 mv 75 mv figure 3. release time in t r /in /en q /q 50% figure 2. hold time in t h /in /en q /q 50% 75 mv 75 mv package/ordering information ordering information (1) package operating package lead part number type range marking finish sy10e111ji j28-1 industrial sy10e111ji sn-pb sy10e111jitr (2) j28-1 industrial sy10e111ji sn-pb sy100e111ji j28-1 industrial sy100e111ji sn-pb sy100e111jitr (2) j28-1 industrial sy100e111ji sn-pb sy10e111jc j28-1 commercial sy10e111jc sn-pb sy10e111jctr (2) j28-1 commercial sy10e111jc sn-pb sy100e111jc j28-1 commercial sy100e111jc sn-pb sy100e111jctr (2) j28-1 commercial sy100e111jc sn-pb sy10e111jy (3) j28-1 industrial sy10e111jy with matte-sn pb-free bar-line indicator sy10e111jytr (2, 3) j28-1 industrial sy10e111jy with matte-sn pb-free bar-line indicator sy100e111jy (3) j28-1 industrial sy100e111jy with matte-sn pb-free bar-line indicator SY100E111JYTR (2, 3) j28-1 industrial sy100e111jy 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. 28-pin plcc (j28-1) v cc v ee /en v bb /in q 2 26 27 28 1 2 3 4 18 17 16 15 14 13 12 25 24 23 22 21 20 19 567891011 nc in q 6 /q 6 q 3 /q 1 plcc top view j28-1 /q 2 /q 0 q 0 v cco q 1 /q 3 q 4 v cco /q 4 q 5 /q 5 q 7 v cco /q 7 q 8 /q 8
3 sy10e111 sy100e111 micrel, inc. m9999-032006 hbwhelp@micrel.com or (408) 955-1690 v ee = v ee (min.) to v ee (max.); v cc = v cco = gnd t a = ?0 ct a = 0 ct a = +25 ct a = +85 c symbol parameter min. typ. max. min. typ. max. min. typ. max. min. typ. max. unit t pd propagation delay to ps output in (differential) (1) 430 630 430 630 430 630 in (single-ended) (2) 330 730 330 730 330 730 enable (3) 450 850 450 850 450 850 disable (3) 450 850 450 850 450 850 t skew within-device skew (4) 25 50 25 50 25 50 ps t s set-up time /en to in (5) 200 0 200 0 200 0 ps t h hold time in to /en (6) 0 200 0 200 0 200 ps t r release time /en to in (7) 300 100 300 100 300 100 ps v pp minimum input swing (8) 250 250 250 mv v cmr common mode range (9) 1.6 0.4 1.6 0.4 1.6 0.4 v t r rise/fall times 275 375 600 275 375 600 275 375 600 ps t f (20% to 80%) notes: 1. 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. 2. the single-ended propagation delay is defined as the delay from the 50% point of the input signal to the 50% point of the out put signal. 3. enable is defined as the propagation delay from the 50% point of a negative transition on /en to the 50% point of a positive transition on q (or a negative transition on /q). disable is defined as the propagation delay from the 50% point of a positive transition on /en to the 50% point of a negative transition on q (or a positive transition on /q). 4. the within-device skew is defined as the worst case difference between any two similar delay paths within a single device. 5. the set-up time is the minimum time that /en must be asserted prior to the next transition of /in/in to prevent an output res ponse greater than 75mv to that /in/in transition (see figure 1). 6. the hold time is the minimum time that /en must remain asserted after a negative going in or a positive going /in to prevent an output response greater than 75mv to that in, /in transition (see figure 2). 7. the release time is the minimum time that /en must be de-asserted prior to the next in, /in transition to ensure an output re sponse that meets the specified in to q propagation delay and output transition times (see figure 3). 8. 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 e111, as a differential input as low as 50mv will still produce full ecl levels at the output. 9. v cmr 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 greater than or equal to v pp (min.). ac electrical characteristics v ee = v ee (min.) to v ee (max.); v cc = v cco = gnd t a = ?0 ct a = 0 ct a = +25 ct a = +85 c symbol parameter min. typ. max. min. typ. max. min. typ. max. min. typ. max. unit v bb output reference v voltage 10e 1.38 1.27 1.35 1.25 1.31 1.19 100e 1.38 1.26 1.38 1.26 1.38 1.26 i ih input high current 150 150 150 a i ee power supply ma current 10e 48 60 48 60 48 60 100e 48 60 48 60 55 69 dc electrical characteristics
4 sy10e111 sy100e111 micrel, inc. m9999-032006 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 data sheet is believed to be accurate and reliable. however, no responsibility is a ssumed 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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