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PRELIMINARY
Integrated Circuit Systems, Inc.
ICS87354I
÷4/÷5 DIFFERENTIAL-TO-2.5V/3.3V LVPECL CLOCK GENERATOR
FEATURES
• 1 differential 2.5V/3.3V LVPECL / ECL output • 1 CLK, nCLK input pair • CLK, nCLK pair can accept the following differential input levels: LVPECL, LVDS, LVHSTL, SSTL, HCSL • Maximum output frequency: 250MHz • Input frequency: >1GHz • Translates any single ended input signal to 3.3V LVPECL levels with resistor bias on nCLK input • Output skew: 38ps (maximum) • Part-to-part skew: 375ps (maximum) • Propagation delay: 2.1ns (maximum) • LVPECL mode operating voltage supply range: VCC = 2.375V to 3.8V, VEE = 0V • ECL mode operating voltage supply range: VCC = 0V, VEE = -2.375V to -3.