NOT RECOMMENDED FOR NEW DESIGNS Precison Edge SY10E111A/L Precision Edge Micrel, Inc. SY100E111A/L 5V/3.3V 1:9 DIFFERENTIAL SY10E111A/L CLOCK DRIVER (w/o ENABLE) SY100E111A/L FEATURES 5V and 3.3V power supply options Precision Edge 200ps part-to-part skew 50ps output-to-output skew DESCRIPTION Differential design VBB output The SY10/100E111A/L are low skew 1-to-9 differential Voltage and temperature compensated outputs driver designed for clock distribution in mind. The SY10/100E111A/L s function and performance are similar to 75K input pulldown resistors the popular SY10/100E111, with the improvement of lower Fully compatible with Motorola MC100LVE111 jitter and the added feature of low voltage operation. It accepts Available in 28-pin PLCC package one signal input, which can be either differential or single- ended if the V output is used. The signal is fanned out to 9 BB identical differential outputs. BLOCK DIAGRAM The E111A/L are specifically designed, modeled and produced with low skew as the key goal. Optimal design and Q0 layout serve to minimize gate to gate skew within a device, and empirical modeling is used to determine process control limits Q0 that ensure consistent t distributions from lot to lot. The net pd Q1 result is a dependable, guaranteed low skew device. Q1 To ensure that the tight skew specification is met it is Q2 necessary that both sides of the differential output are Q2 terminated into 50, even if only one side is being used. In most applications, all nine differential pairs will be used and Q3 therefore terminated. In the case where fewer that nine pairs Q3 are used, it is necessary to terminate at least the output pairs IN Q4 on the same package side as the pair(s) being used on that IN Q4 side, in order to maintain minimum skew. Failure to do this will Q5 result in small degradations of propagation delay (on the order of 10-20ps) of the output(s) being used which, while not being Q5 catastrophic to most designs, will mean a loss of skew margin. Q6 The E111A/L, as with most other ECL devices, can be Q6 operated from a positive V supply in PECL mode. This CC Q7 allows the E111A/L to be used for high performance clock Q7 distribution in +5V/+3.3V systems. Designers can take Q8 advantage of the E111A/L s performance to distribute low skew clocks across the backplane or the board. In a PECL VBB Q8 environment, series or Thevenin line terminations are typically used as they require no additional power supplies. For systems incorporating GTL, parallel termination offers the lowest power by taking advantage of the 1.2V supply as PIN NAMES terminating voltage. Pin Function IN, IN Differential Input Pair Q , Q Q , Q Differential Outputs 0 0 8 8 V VBB Output BB V VCC to Output CCO Precision Edge is a registered trademark of Micrel, Inc. Rev.: J Amendment: /0 M9999-032006 1 Rev. Date: March 2006 hbwhelp micrel.com or (408) 955-1690 Precison Edge SY10E111A/L Micrel, Inc. SY100E111A/L PACKAGE/ORDERING INFORMATION (1) Ordering Information Package Operating Package Lead 25 24 23 22 21 20 19 Part Number Type Range Marking Finish VEE 26 18 Q3 SY10E111LJI J28-1 Industrial SY10E111LJI Sn-Pb NC 27 17 Q3 (2) SY10E111LJITR J28-1 Industrial SY10E111LJI Sn-Pb IN 28 16 Q4 PLCC VCC VCCO 1 15 SY100E111LJI J28-1 Industrial SY100E111LJI Sn-Pb TOP VIEW J28-1 IN 2 14 Q4 (2) SY100E111LJITR J28-1 Industrial SY100E111LJI Sn-Pb VBB 3 13 Q5 NC SY10E111LJC J28-1 Commercial SY10E111LJC Sn-Pb 4 12 Q5 56789 1011 (2) SY10E111LJCTR J28-1 Commercial SY10E111LJC Sn-Pb SY100E111LJC J28-1 Commercial SY100E111LJC Sn-Pb (2) SY100E111LJCTR J28-1 Commercial SY100E111LJC Sn-Pb SY10E111AJI J28-1 Industrial SY10E111AJI Sn-Pb 28-Pin PLCC (J28-1) (2) SY10E111AJITR J28-1 Industrial SY10E111AJI Sn-Pb SY100E111AJI J28-1 Industrial SY100E111AJI Sn-Pb (2) SY100E111AJITR J28-1 Industrial SY100E111AJI Sn-Pb SY10E111AJC J28-1 Commercial SY10E111AJC Sn-Pb (2) SY10E111AJCTR J28-1 Commercial SY10E111AJC Sn-Pb SY100E111AJC J28-1 Commercial SY100E111AJC Sn-Pb (2) SY100E111AJCTR J28-1 Commercial SY100E111AJC Sn-Pb (3) SY10E111LJY J28-1 Industrial SY10E111LJY with Matte-Sn Pb-Free bar-line indicator (2, 3) SY10E111LJYTR J28-1 Industrial SY10E111LJY with Matte-Sn Pb-Free bar-line indicator (3) SY100E111LJY J28-1 Industrial SY100E111LJY with Matte-Sn Pb-Free bar-line indicator (2, 3) SY100E111LJYTR J28-1 Industrial SY100E111LJY with Matte-Sn Pb-Free bar-line indicator (3) SY10E111AJY J28-1 Industiral SY10E111AJY with Matte-Sn Pb-Free bar-line indicator (2, 3) SY10E111AJYTR J28-1 Industrial SY10E111AJY with Matte-Sn Pb-Free bar-line indicator (3) SY100E111AJY J28-1 Industrial SY100E111AJY with Matte-Sn Pb-Free bar-line indicator (2, 3) SY100E111AJYTR J28-1 Industrial SY100E111AJY with Matte-Sn Pb-Free bar-line indicator Notes: 1. Contact factory for die availability. Dice are guaranteed at T = 25C, DC Electricals only. A 2. Tape and Reel. 3. Pb-Free package is recommended for new designs. PRODUCT/PROCESS INFORMATION Process: Bipolar ESD Rating: Per Mil Std. 883 Human Body Model, >1.5kV (all pins). M9999-032006 2 hbwhelp micrel.com or (408) 955-1690 Q0 Q8 Q8 Q0 Q1 Q7 VCCO VCCO Q7 Q1 Q6 Q2 Q6 Q2