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PRELIMINARY
Integrated Circuit Systems, Inc.
ICS840008-01
FEMTOCLOCKS™CRYSTAL-TO-LVCMOS/LVTTL FREQUENCY SYNTHESIZER
FEATURES
• Eight LVCMOS/LVTTL outputs, 15Ω typical output impedance • Output frequency range: 125MHz - 160MHz • Crystal oscillator interface, 25MHz - 32MHz crystal • VCO range: 500MHz - 640MHz • RMS phase jitter (1.875MHz - 20MHz): 0.52ps (typical) • Output skew: 150ps (maximum) (design target) • Voltages supply modes: Core/Output 3.3V/3.3V 3.3V/2.5V 3.3V/1.8V 2.5V/2.5V 2.5V/1.