
ICS844251-14
FEMTOCLOCK CRYSTAL-TO-LVDS CLOCK GENERATOR
IDT / ICS LVDS CLOCK GENERATOR
6
ICS844251BG-14 REV. A NOVEMBER 19, 2012
Typical Phase Noise at 156.25MHz (3.3V)
Typical Phase Noise at 625MHz (3.3V)
Ethernet Filter
Phase Noise Result by adding a
Ethernet filter to raw data
Raw Phase Noise Data
156.25MHz
RMS Phase Jitter (Random)
1.875MHz to 20MHz = 0.53ps (typical)
Offset Frequency (Hz)
Ethernet Filter
Phase Noise Result by adding a
Ethernet filter to raw data
Raw Phase Noise Data
625MHz
RMS Phase Jitter (Random)
1.875MHz to 20MHz = 0.45ps
Offset Frequency (Hz)
Noise
P
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w
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Bc
Hz
Noise
P
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w
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Bc
Hz