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LMX2525 Datasheet(PDF) 5 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part # LMX2525
Description  PLLatinum Dual Frequency Synthesizer System with Integrated VCOs
PDF  17 Pages
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

LMX2525 Datasheet(HTML) 5 Page - National Semiconductor (TI)

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Electrical Characteristics (V
IN = 2.8 V, refer to Typical Application Circuit; Limits in standard typeface are for
TA = 25 ˚C; Limits in boldface type apply over the operating temperature range from -20 ˚C
≤ T
A
≤ 75 ˚C unless otherwise
noted.) (Continued)
Symbol
Parameter
Condition
Min
Typ
Max
Units
RF1 VCO FOR PDC1500
L(f)
RF1out
Phase Noise when RF1 VCO for
PDC1500 is activated in Normal
Mode (HS = 0).
@ 25 kHz offset
-95
-93
-91
dBc/Hz
@ 50 kHz offset
-106
-103
-101
dBc/Hz
@ 100 kHz offset
-115
-113
-111
dBc/Hz
@ 1 MHz offset
-135
-133
dBc/Hz
2
nd Harmonic Suppression
-25
dBc
3
rd Harmonic Suppression
OB_CRL [1:0] = 11, 10, 01
-20
dBc
OB_CRL [1:0] = 00
-14
-11
dBc
Spurious Tones
@
≤ 25 kHz offset
-45
dBc
@ 25 kHz < offset
≤ 50 kHz
-60
dBc
@ 50 kHz < offset
≤ 100 kHz
-69
dBc
@ offset > 100 kHz
-75
dBc
RF2 VCO FOR PDC800
f
RF2out
Frequency Range (Note 8)
RF2 VCO for PDC800
633.15
768.00
MHz
P
RF2out
Output Power
OB_CRL [1:0] = 11
-6
-3
0
dBm
OB_CRL [1:0] = 10
-9
-6
-3
dBm
OB_CRL [1:0] = 01
-11
-8
-5
dBm
OB_CRL [1:0] = 00
-15
-12
-9
dBm
Lock Time
Full frequency span within
each band in High Speed
Mode (HS = 1).
300
(Note 9)
µs
Between bands High Speed
Mode (HS = 1).
300
(Note 9)
µs
Full frequency span within
each band in Normal Mode
(HS = 0).
(Note 11)
500
(Note 9)
µs
375
(Note 10)
µs
Between bands in Normal
Mode (HS = 0).
500
(Note 9)
µs
400
(Note 10)
µs
RMS Phase Error
1.3
degrees
L(f)
RF2out
Phase Noise when RF2 VCO for
PDC800 is activated in Normal Mode
(HS = 0).
@ 25 kHz offset
-95
-93
-91
dBc/Hz
@ 50 kHz offset
-106
-103
-101
dBc/Hz
@ 100 kHz offset
-115
-113
-111
dBc/Hz
@ 1 MHz offset
-135
-133
dBc/Hz
2
nd Harmonic Suppression
-25
dBc
3
rd Harmonic Suppression
OB_CRL[1:0] = 11, 10, 01
-20
dBc
OB_CRL[1:0] = 00
-14
-11
dBc
www.national.com
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