GENERAL DESCRIPTION

The ICS8533-11 is a low skew, high performance 1-to-4 Crystal Oscillator/Differential-to-3.3V 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.

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