LMK03200_14 Datasheet, PDF (12/50 Pages) Texas Instruments – Family Precision 0-Delay Clock Conditioner with Integrated VCO

LMK03200
SNAS478B – JULY 2009 – REVISED AUGUST 2009
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Typical Performance Characteristics (continued)
These plots show performance at frequencies beyond what the part is guaranteed to operate at to give the user an idea of
the capabilities of the part, but they do not imply any sort of guarantee.
Delay Noise Floor
-135
-140
-145
-150
-155
-160
-165
-170
10
Delay = 2250 ps
Delay=1800 ps
Delay = 900 ps
Delay = 450 ps
Delay = 0 ps
100
1000
FREQUENCY (MHz)
To estimate this noise, only the output frequency is required. Divide value and input frequency are not integral.
The noise of the delay block is independent of output type and only applies if the delay is enabled. The noise floor due to the distribution
section accounting for the delay noise can be calculated as: Total Output Noise = 10 × log(10^{Output Buffer Noise/10} + 10^{Delay Noise Floor/10}).
Figure 6.
12
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