PRELIMINARY
Integrated Circuit Systems, Inc.
ICS840001-34
FEMTOCLOCKS™CRYSTAL-TOLV
CMOS/LVTTL FREQUENCY SYNTHESIZER
FEATURES
• (2) LV
CMOS/LVTTL outputs, 20Ω typical output impedence (1) Main clock output (Q) (1) Three-state reference clock output (REF_CLK) • Crystal oscillator interface can accept crystals from 15.
3125MHz to 42.
67MHz, 18pF parallel resonant crystal • Output frequency range: 81.
67MHz to 213.
33MHz • VCO range: 490MHz to 640MHz • RMS phase jitter @ 106.
25MHz, using a 26.
5625MHz crystal (637kHz - 10MHz): 0.
38ps (typical) • 3.
3V operating supply • 0°C to 70°C ambient operating temperature
GENERAL DESCRIPTION
The ICS840001-34 is a two output LV
CMOS/ LVTTL Synthesizer and a membe...