1 micrel, inc.m9999-021407 hbwhelp@micrel.com or (408) 955-1690 precision edge ? sy100s811 features description precision edge ? sy100s811 rev.: h amendment: /0 issue date: february 2007 single supply 1:9 pecl/ttl-to-pecl pecl version of popular eclinps e111 low skew guaranteed skew spec v bb output ttl enable input selectable ttl or pecl clock input single +5v supply differential internal design similar pin configuration to e111 pecl i/o fully compatible with industry standard internal 75k pecl input pull-down resistors available in 28-pin plcc and soic packages the sy100s811 is a low skew 1-to-9 pecl differential driver designed for clock distribution in new, high-performance pecl systems. it accepts either a pecl clock input or a ttl input by using the ttl enable pin t en . when the ttl enable pin is high, the ttl input is enabledand the pecl input is disabled. when the enable pin is set low, the ttl input is disabled and the pecl input is enabled. the device is specifically designed and produced for low skew. the interconnect scheme and metal layout arecarefully 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 s811 shares a common set of basic 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 areterminated into 50 , even if only one side is being used. ln most applications, all nine differential pairs will be usedand, 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 pecl signals to thatdevice 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. block diagram 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 e in e in 01 t in t en precision edge is a registered trademark of micrel, inc. precision edge ? downloaded from: http:///
2 micrel, inc.m9999-021407 hbwhelp@micrel.com or (408) 955-1690 precision edge ? sy100s811 package/ordering information 28-pin plcc (j28-1) ordering information package operating package lead part number type range marking finish sy100s811zc z28-1 commercial sy100s811zc sn-pb sy100s811zctr (1) z28-1 commercial sy100s811zc sn-pb sy100s811jc j28-1 commercial sy100s811jc sn-pb sy100s811jctr (1) j28-1 commercial sy100s811jc sn-pb sy100s811zh (2) z28-1 commercial sy100s811zh with nipdau pb-free bar-line indicator pb-free sy100s811zhtr (1, 2) z28-1 commercial sy100s811zh with nipdau pb-free bar-line indicator pb-free sy100s811jz (2) j28-1 commercial sy100s811jz with matte-sn pb-free bar-line indicator sy100s811jztr (1, 2) j28-1 commercial sy100s811jz with matte-sn pb-free bar-line indicator notes: 1. tape and reel. 2. pb-free package is recommended for new designs. top view plcc j28-1 26 27 28 1 2 3 4 18 17 16 15 14 13 12 q 3 q 4 v cco q 5 q 3 q 4 q 5 25 24 23 22 21 20 19 567891011 v cc v ee e in v bb t in t en e in v cco q 7 q 6 q 8 q 8 q 7 q 6 q 0 q 1 v cco q 2 q 0 q 1 q 2 12 3 4 5 6 7 8 9 1011 12 13 14 27 2826 25 24 23 22 21 20 1918 17 16 15 v cc v b b t in q 8 q 8 q 7 v cco q 7 q 6 q 6 q 5 q 5 q 4 t en v ee q 0 q 0 q 1 v cco q 1 q 2 q 2 q 3 q 3 q 4 v cco top view soic z28-1 e in e in 28-pin soic (z28-1) downloaded from: http:///
3 micrel, inc.m9999-021407 hbwhelp@micrel.com or (408) 955-1690 precision edge ? sy100s811 v cc = v cco = +5.0v 5% t a = 0 ct a = +25 ct a = +85 c symbol parameter min. typ. max. min. typ. max. min. typ. max. unit v bb output reference (1) 3.62 3.74 3.62 3.74 3.62 3.74 v voltage i ih input high current 150 150 150 a i il input low current 0.5 0.5 0.5 a v ih input high voltage (1) 3.835 4.120 3.835 4.120 3.835 4.120 v v il input low voltage (1) 3.190 3.525 3.190 3.525 3.190 3.525 v v oh output high voltage (2) v cc C1025 v cc C955 v cc C870 v cc C1025 v cc C955 v cc C870 v cc C1025 v cc C955 v cc C870 mv v ol output low voltage (2) v cc C1890 v cc C1705 v cc C1620 v cc C1890 v cc C1705 v cc C1620 v cc C1890 v cc C1705v cc C1620 mv i cc power supply (3) 53 65 53 65 60 74 ma current truth table t en e in t in q llxl lhxh hxl l hxhh pin function e in , e in differential pecl input pair t in ttl input t en ttl input enable q 0 , q 0 C q 8 , q 8 differential pecl outputs v bb v bb output v cc pecl v cc (+5.0v) v ee pecl ground (0v) pin names pecl dc electrical characteristics notes:1. v cc = v cco = 5.0v 2. v in = v ih (max.) or v il (min.) loading with 50 to v cc C2v. 3. all inputs and outputs open. downloaded from: http:///
4 micrel, inc.m9999-021407 hbwhelp@micrel.com or (408) 955-1690 precision edge ? sy100s811 ttl dc electrical characteristics ac electrical characteristics (1C6) notes: 1. part-to-part skew is defined as max. min. value at the given temperature. 2. 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. 3. the single-ended propagation delay is defined as the delay from the 50% point of the input signal to the 50% point of the output signal. 4. the within-device skew is defined as the worst case difference between any two similar delay paths within a single device. 5. 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 s811, as a differential input as low as 50mv will still produce full pecl levels at the output. 6. 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.). v cc = v cco = +5.0v 5% t a = 0 ct a = +25 ct a = +85 c symbol parameter min. typ. max. min. typ. max. min. typ. max. unit v ih input high voltage 2.0 2.0 2.0 v v il input low voltage 0.8 0.8 0.8 v i ih input high current (1),(2) 20 20 20 a 100 100 100 i il input low current (3) C 0.6 C 0.6 C 0.6 ma v ik input clamp voltage (4) C 1.2 C 1.2 C 1.2 v notes:1. v in = 2.7v 2. v in = 5.0v 3. v in = 0.5v 4. i in = -18 ma v cc = v cco = +5.0v 5% t a = 0 ct a = +25 ct a = +85 c symbol parameter min. typ. max. min. typ. max. min. typ. max. unit t plh propagation delay to output (1) ps t phl e in (differential) (2) 430 630 430 630 430 630 e in (single-ended) (3) 330 730 330 730 330 730 t in 350 950 350 950 350 950 t skew within-device skew (4) 25 50 25 50 25 50 ps v pp minimum pecl input swing (5) 250 250 250 mv v cmr pecl common mode range (6) C 1.6 C 0.4 C 1.6 C 0.4 C 1.6 C 0.4 v t r output rise/fall times 275 375 600 275 375 600 275 375 600 ps t f 20% to 80% downloaded from: http:///
5 micrel, inc.m9999-021407 hbwhelp@micrel.com or (408) 955-1690 precision edge ? sy100s811 28-pin plcc (j28-1) rev. 03 downloaded from: http:///
6 micrel, inc.m9999-021407 hbwhelp@micrel.com or (408) 955-1690 precision edge ? sy100s811 28-pin soic .300" wide (z28-1) rev. 02 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 s use or sale of micrel products for use in life support appliances, devices or systems is at purchasers own risk and purchaser agrees to fully indemnify micrel for any damages resulting from such use or sale. ? 2006 micrel, incorporated. downloaded from: http:///
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