Low-Voltage 1:10 Differential ECL/PECL/HSTL Clock Driver
SEMTECH
T oday's Results ...T omorrow's Vision
Low-Voltage 1:10 Differential ECL/PECL/HSTL Clock Driver
SK10EP111
Pre...
Description
SEMTECH
T oday's Results ...T omorrow's Vision
Low-Voltage 1:10 Differential ECL/PECL/HSTL Clock Driver
SK10EP111
Preliminary Information
This document contains information on a new product. The parametric information, although not fully characterized, is the result of testing initial devices.
October 4, 1999
Low-Voltage 1:10 Differential ECL/PECL/HSTL Clock Driver
Features
100 ps Part-to-Part Skew 35 ps Output-to-Output Skew Differential Design VBB Output Low Voltage VEE Range of –2.375 to –3.8V for ECL Low Voltage VCC Range of +2.375 to +3.8V for PECL and HSTL 75 KΩ Input Pulldown Resistors ECL/PECL Outputs 32 Lead LQFP Package
Logic Symbol
CLK0 10 0 Q0:9 1 VBB Q0*:9*
Description
The SK10EP111 is a low skew 1-to-10 diffferential driver, designed with clock distribution in mind. It accepts two clock sources into an input multiplexer. The ECL/PECL input signals can be either differential or single-ended if the VBB output is used. HSTL inputs can be used when the EP111 is operating under PECL conditions. The selected signal is fanned out to 10 identical differential outputs. The SK10EP111 is specifically designed, modeled, and produced with low skew as the key goal. Optimal design and layout serve to minimize gate-to-gate skew within a device, and characterization is used to determine process control limits that ensure consistent tpd distributions from lot to lot. The net result is a dependable, guaranteed low skew device. To ensure that the tight skew s...
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