Texas Instruments LMX2485E-EVM, Руководство пользователя

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r 160
r
140
r
120
r
100
r
80
r
60
100 1000 10000 100000 1000000 10000000
P
h
a
se
N
o
is
e
(d
B
c
/H
z)
Offset (Hz)
4200.1 MHz, CP gain = 8x, FM = 2, Dithering Disabled
4200.1 MHz, CP gain = 8x, FM = 3, Dithering Disabled
4200.1 MHz, CP gain = 8x, FM = 4, Dithering Disabled
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Typical Phase Noise Performance Plots
17 SNAU114D – March 2006 – Revised June 2016
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Using the LMX2485E & LMX2487E Evaluation Board
Figure 16. LMX2487E Impact on Fractional Modulator