Integrated Circuit Systems, Inc.
ICS840021 FEMTOCLOCKS™ CRYSTAL-TOLVCMOS/LVTTL CLOCK GENERATOR FEATURES • 1 LVCMOS/LVTTL output, 7Ω output impedence • Crystal oscillator interface designed for 25MHz, 18pF parallel resonant crystal • Output frequency: 125MHz • VCO range: 560MHz to 680MHz • RMS phase jitter @ 125MHz, using a 25MHz crystal (1.
875MHz - 20MHz): 0.
34ps (typical) • RMS phase noise at 125MHz (typical) Phase noise: Offset Noise Power 100Hz -96.
9 dBc/Hz 1KHz .
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-122.
2 dBc/Hz 10KHz .
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-131.
1 dBc/Hz 100KHz .
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-129.
5 dBc/Hz • 3.
3V operating supply • 0°C to 70°C ambient operating temperature • Industrial temperature information availabl...

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