Texas Instruments LMK04208, User Manual

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Offset (Hz)
P
h
a
se
No
is
e
(d
B
c/
Hz)
-170
-160
-150
-140
-130
-120
-110
-100
-90
-80
-70
-60
-50
10 100 1k 10k 100k 1M 10M
D002
LVPECL16 /w 240 ohm em, SE
LVPECL16 /w 240 ohm em, Balun
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Clock Output Phase Noise Measurements
31 SNAU200 – September 2016
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Typical Phase Noise Performance Plots
B.2.2 CLKout 2949.12 MHz
2949.12 MHz CLKout
Figure 20. LMK04208, 2949.12 MHz, Divide-by-1
Table 12. 2949.12 MHz Clock Output Phase Noise (dBc/Hz)
Offset LVPECL16 /w 240 ohm em, SE LVPECL16 /w 240 ohm em, Balun
10 Hz -58.4 -55.7
100 Hz -78.4 -80.8
1 kHz -101.2 -101.3
10 kHz -110.8 -110.4
100 kHz -114.0 -113.9
1 MHz -126.6 -126.8
5 MHz -140.7 -141.0
10 MHz -145.4 -145.8
20 MHz -147.4 -147.7
40 MHz -148.5 -149.2
Table 13. 2949.12 MHz Clock Output Jitter (fs RMS)
Offset LVPECL16 /w 240 ohm em, SE LVPECL16 /w 240 ohm em, Balun
100 Hz to 20 MHz 122.7 121
12 kHz to 20 MHz 98.2 96.4