ICS840004-01 Datasheet, PDF (5/13 Pages) Integrated Circuit Systems – FEMTOCLOCKS™ CRYSTAL-TO LVCMOS/LVTTL FREQUENCY SYNTHESIZER

Integrated
Circuit
Systems, Inc.
PRELIMINARY
ICS840004-01
FEMTOCLOCKS™ CRYSTAL-TO-
LVCMOS/LVTTL FREQUENCY SYNTHESIZER
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
-110
-120
-130
-140
-150
-160
-170
-180
-190
100
TYPICAL PHASE NOISE AT 62.5MHZ @3.3V
1Gb Ethernet Filter
62.5MHz
RMS Phase Jitter (Random)
1.875MHz to 20MHz = 0.55ps (typical)
Raw Phase Noise Data
Phase Noise Result by adding
1Gb Ethernet Filter to raw data
1k
10k
100k
1M
10M
100M
OFFSET FREQUENCY (HZ)
840004AG-01
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
-110
-120
-130
-140
-150
-160
-170
-180
-190
100
TYPICAL PHASE NOISE AT 62.5MHZ @2.5V
1Gb Ethernet Filter
62.5MHz
RMS Phase Jitter (Random)
1.875MHz to 20MHz = 0.53ps (typical)
Raw Phase Noise Data
Phase Noise Result by adding
1Gb Ethernet Filter to raw data
1k
10k
100k
1M
OFFSET FREQUENCY (HZ)
www.icst.com/products/hiperclocks.html
10M
100M
REV. B JANUARY 3, 2006
5