
IDT / ICS FEMTOCLOCKS CLOCK GENERATOR
5
ICS844001 REV A NOVEMBER 2, 2012
ICS844001
FEMTOCLOCKS CRYSTAL-TO-LVDS CLOCK GENERATOR
Phase Noise Result by adding
Fibre Channel Filter to raw data
Raw Phase Noise Data
Fibre Channel Filter
Phase Noise Result by adding
Fibre Channel Filter to raw data
Raw Phase Noise Data
Fibre Channel Filter
TYPICAL PHASE NOISE AT 106.25MHZ @3.3V
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
-110
-120
-130
-140
-150
-160
-170
-180
-190
OFFSET FREQUENCY (HZ)
N
OISE
P
O
WER
dBc
Hz
100
1k
10k
100k
1M
10M
100M
TYPICAL PHASE NOISE AT 212.5MHZ @3.3V
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
-110
-120
-130
-140
-150
-160
-170
-180
-190
212.5MHz
RMS Phase Jitter (Random)
637kHz to 10MHz = 0.70ps (typical)
OFFSET FREQUENCY (HZ)
N
OISE
P
O
WER
dBc
Hz
100
1k
10k
100k
1M
10M
100M
106.25MHz
RMS Phase Jitter (Random)
637kHz to 10MHz = 0.74ps (typical)