ICS8533-11

www.DataSheet4U.com Integrated Circuit Systems, Inc. ICS8533-11 LOW SKEW, 1-TO-4, CRYSTAL OSCILLATOR/ DIFFERENTIAL-TO-3.3V LVPECL FANOUT BUFFER FEATURES 4 differential 3.3V LVPECL outputs Selectable CLK, nCLK or crystal inputs CLK, nCLK pair can accept the following differential input levels: LVDS, LVPECL, LVHSTL, SSTL, HCSL Maximum output frequency up to 650MHz Translates any single-ended input signal to 3.3V LVPECL levels with resistor bias on nCLK input Output skew: 30ps (maximum) Part-to-part skew: 150ps (maximum) Propagation delay: 2ns (maximum) 3.3V operating supply 0°C to 70°C ambient operating temperature Industrial temperature information available upon request GENERAL DESCRIPTION The ICS8533-11 is a low skew, high performance ,&6 1-to-4 Crystal Oscillator/Differential-to-3.3V HiPerClockS™ LVPECL fanout buffer and a member of the HiPerClockS™ family of High Performance Clock Solutions from ICS. The ICS8533-11 has selectable differential clock or crystal inputs. The CLK, nCLK pair can accept most standard differential input levels. The clock enable is internally synchronized to eliminate runt pulses on the outputs during asynchronous assertion/deassertion of the clock enable pin. Guaranteed output and part-to-part skew characteristics make the ICS8533-11 ideal for those applications demanding well defined performance and repeatability. BLOCK DIAGRAM CLK_EN D Q LE CLK nCLK XTAL1 XTAL2 0 1 Q0 nQ0 Q1 nQ1 Q2 nQ2 Q3 nQ3 PIN ASSIGNMENT VEE CLK_EN ...