ICS843021I-01 Datasheet, PDF (5/14 Pages) Integrated Circuit Systems – FEMTOCLOCKS-TM CRYSTAL-TO-3.3V, 2.5V 125MHZ LVPECL CLOCK GENERATOR

Integrated
Circuit
Systems, Inc.
PRELIMINARY
ICS843021I-01
FEMTOCLOCKS™ CRYSTAL-TO-3.3V, 2.5V
125MHZ LVPECL CLOCK GENERATOR
TYPICAL PHASE NOISE AT 125MHZ (3.3V OR 2.5V)
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
-110
-120
-130
-140
-150
-160
-170
-180
-190
100
Gigabit Ethernet Filter
125MHz
RMS Phase Jitter (Random)
1.875MHz to 20MHz (3.3V) = 0.41ps (typical)
1.875MHz to 20MHz (2.5V) = 0.42ps (typical)
Raw Phase Noise Data
Phase Noise Result by adding
Gigabit Ethernet Filter to raw data
1k
10k
100k
1M
10M
100M
OFFSET FREQUENCY (HZ)
843021AGI-01
www.icst.com/products/hiperclocks.html
5
REV. A NOVEMBER 30, 2004