NOT RECOMMENDED FOR NEW DESIGNS Precision Edge SY10H842 Precision Edge Micrel, Inc. SY100H842 SINGLE SUPPLY QUAD SY10H842 PECL-TO-TTL OUTPUT ENABLE SY100H842 FEATURES Translates positive ECL-to-TTL (PECL-to-TTL) 300ps pin-to-pin skew Precision Edge 500ps part-to-part skew DESCRIPTION Differential internal design for increased noise immunity and stable threshold inputs The SY10/100H842 are single supply, low skew VBB reference output translating 1:4 clock drivers. Single supply The devices feature a 24mA TTL output stage, with Enable input AC performance specified into a 50pF load capacitance. A HIGH on the enable pin (EN) forces all outputs LOW. Extra TTL and ECL power/ground pins to reduce As frequencies increase to 40MHz and above, precise cross-talk/noise timing and shaping of clock signals becomes extremely High drive capability: 24mA each output important. The H842 solves several clock distribution Fully compatible with industry standard 10K, 100K problems such as minimizing skew 300ps), maximizing I/O levels clock fanout (24mA drive), and precise duty cycle control Available in 16-pin SOIC package through a proprietary differential internal design. The 10K version is compatible with 10KH ECL logic levels. The 100K version is compatible with 100K levels. BLOCK DIAGRAM PIN NAMES Pin Function TTL Outputs GT TTL Ground (0V) VT TTL VCC (+5.0V) Q0 VE ECL VCC (+5.0V) GE ECL Ground (0V) D, D Signal Input (PECL) Q1 VBB VBB Reference Output (PECL) Q0 - Q3 Signal Outputs (TTL) EN Enable Input (PECL) Q2 Q3 ECL Input D D VBB EN Precision Edge is a registered trademark of Micrel, Inc. Rev.: F Amendment: /0 M9999-032906 1 Issue Date: March 2006 hbwhelp micrel.com or (408) 955-1690 Precision Edge SY10H842 Micrel, Inc. SY100H842 PACKAGE/ORDERING INFORMATION (1) Ordering Information Package Operating Package Lead 116 Part Number Type Range Marking Finish GT Q3 SY10H842ZC Z16-1 Commercial SY10H842ZC Sn-Pb 2 15 EN GT (2) SY10H842ZCTR Z16-1 Commercial SY10H842ZC Sn-Pb 314 GE Q2 SY100H842ZC Z16-1 Commercial SY100H842ZC Sn-Pb 4 13 VE SOIC VT (2) SY100H842ZCTR Z16-1 Commercial SY100H842ZC Sn-Pb Z16-1 512 D VT (3) SY10H842ZH Z16-1 Commercial SY10H842ZH with NiPdAu 6 11 D Q1 Pb-Free bar-line indicator Pb-Free 710 (2, 3) VBB GT SY10H842ZHTR Z16-1 Commercial SY10H842ZH with NiPdAu 8 Pb-Free bar-line indicator Pb-Free 9 GT Q0 (3) SY100H842ZH Z16-1 Commercial SY100H842ZH with NiPdAu Pb-Free bar-line indicator Pb-Free 16-Pin SOIC (Z16-1) (2, 3) SY100H842ZHTR Z16-1 Commercial SY100H842ZH with NiPdAu Pb-Free bar-line indicator Pb-Free 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. M9999-032906 2 hbwhelp micrel.com or (408) 955-1690