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PRELIMINARY
Integrated Circuit Systems, Inc.
ICS840001I
FEMTOCLOCKS™CRYSTAL-TOLVCMOS/LVTTL CLOCK GENERATOR
FEATURES
• 1 LVCMOS/LVTTL output, 7Ω typical output impedence • Crystal oscillator interface designed for 26.5625MHz, 18pF parallel resonant crystal • Selectable 106.25MHz or 212.5MHz output frequency • VCO range: 560MHz to 680MHz • RMS phase jitter @ 106.25MHz, using a 26.5625MHz crystal (637kHz - 5MHz): 0.70ps (typical) • 3.3V or 2.5V operating supply • -40°C to 85°C ambient operating temperature
GENERAL DESCRIPTION
The ICS840001I is a Fibre Channel Clock Generator and a member of the HiPerClocksTM HiPerClockS™ family of high performance devices from ICS. The ICS840001I uses a 26.5625MHz crystal to synthesize either 106.25MHz or 212.5MHz, using the FREQ_SEL pin.