Integrated
Circuit
Systems, Inc.
PRELIMINARY
ICS843252
FEMTOCLOCKS™CRYSTAL-TO-3.3V LVPECL
FREQUENCY SYNTHESIZER
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
-110
-120
-130
-140
-150
-160
-170
-180
-190
1k
TYPICAL PHASE NOISE AT 156.25MHZ
10Gb Ethernet Filter
156.25MHz
RMS Phase Jitter (Random)
1.875Mhz to 20MHz = 0.47ps (typical)
Raw Phase Noise Data
Phase Noise Result by adding
10Gb Ethernet Filter to raw data
10k
100k
1M
10M
100M
OFFSET FREQUENCY (HZ)
843252AG
www.icst.com/products/hiperclocks.html
7
REV. A NOVEMBER 9, 2005