
IDT / ICS 3.3V LVPECL FREQUENCY SYNTHESIZER
6
ICS843004AG-02 REV A JULY 30, 2007
ICS843004-02
CRYSTAL-TO-3.3V LVPECL FREQUENCY SYNTHESIZER
TYPICAL PHASE NOISE AT 75MHZ AT 3.3V
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
-110
-120
-130
-140
-150
-160
-170
-180
-190
75MHz
RMS Phase Jitter (Random)
900kHz to 7.5MHz = 0.91ps (typical)
OFFSET FREQUENCY (HZ)
100
1k
10k
100k
1M
10M
100M
dBc
Hz
N
OISE
P
O
WER
Raw Phase Noise Data
Phase Noise Result by adding
SATA/SAS Filter to raw data
SATA/SAS Jitter Filter
TYPICAL PHASE NOISE AT 155.52MHZ AT 3.3V
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
-110
-120
-130
-140
-150
-160
-170
-180
-190
155.52MHz
RMS Phase Jitter (Random)
12kHz to 20MHz = 0.91ps (typical)
OFFSET FREQUENCY (HZ)
100
1k
10k
100k
1M
10M
100M
dBc
Hz
N
OISE
P
O
WER
Raw Phase Noise Data
Phase Noise Result by adding
OC SONET Filter to raw data
OC SONET Jitter Filter