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LMX2531LQ1500E Datasheet(PDF) 7 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part No. LMX2531LQ1500E
Description  High Performance Frequency Synthesizer System with Integrated VCO
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Maker  NSC [National Semiconductor (TI)]
Homepage  http://www.national.com
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LMX2531LQ1500E Datasheet(HTML) 7 Page - National Semiconductor (TI)

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Electrical Characteristics (V
CC = 3.0 V, -40˚C
≤ T
A
≤ 85 ˚C; f
Fout = 1500 MHz, except as
specified.) (Continued)
Symbol
Parameter
Conditions
Min
Typ
Max
Units
VCO Frequencies
f
Fout
Operating Frequency Range
1499
1510
MHz
Other VCO Specifications
p
Fout
Output Power to a 50
Ω/5pF Load
(Applies across entire tuning
range.)
Divider Disabled
1.0
3.5
7.0
dBm
Divider Enabled
1.0
3.0
6.0
dBm
K
Vtune
Fine Tuning Sensitivity
(When a range is displayed in the
typical column, indicates the lower
sensitivity is typical at the lower
end of the tuning range, and the
higher tuning sensitivity is typical
at the higher end of the tuning
range.)
4-7
MHz/V
HS
Fout
Harmonic Suppression
(Applies Across Entire Tuning
Range)
2nd Harmonic, 50
Ω /
5pF Load
Divider Disabled
-30
-25
dBc
Divider Enabled
-20
-15
3rd Harmonic, 50
Ω /
5pF Load
Divider Disabled
-40
-35
Divider Enabled
-25
-20
PUSH
Fout
Frequency Pushing
Creg = 0.1uF, V
DD ± 100mV, Open Loop
300
kHz/V
PULL
Fout
Frequency Pulling
VSWR=2:1, Open Loop
±600
kHz
Z
Fout
Output Impedance
50
VCO Phase Noise (Note 4)
L(f)
Fout
Phase Noise
f
Fout = 1500 MHz
10 kHz Offset
-97
dBc/Hz
100 kHz Offset
-120
1 MHz Offset
-142
5 MHz Offset
-155
www.national.com
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