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LMX2485 Datasheet(Fiches technique) 4 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
Numéro de pièce LMX2485
Description  50 MHz - 3.0 GHz High Performance Delta-Sigma Low Power Dual PLLatinum™ Frequency Synthesizers with 800 MHz Integer PLL
Télécharger  37 Pages
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Fabricant  NSC [National Semiconductor (TI)]
Site Internet  http://www.national.com
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LMX2485 Datasheet(HTML) 4 Page - National Semiconductor (TI)

 
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Electrical Characteristics (V
CC = 3.0V; -40˚C
≤ T
A
≤ +85˚C unless otherwise specified) (Continued)
Symbol
Parameter
Conditions
Value
Units
Min
Typ
Max
RF SYNTHESIZER PARAMETERS
I
CPoutRFSINK
RF Charge Pump Sink
Current
(Note 5)
RF_CPG = 0
V
CPoutRF =VCC/2
-95
µA
RF_CPG = 1
V
CPoutRF =VCC/2
-190
µA
...
...
µA
RF_CPG = 15
V
CPoutRF =VCC/2
-1520
µA
I
CPoutRFTRI
RF Charge Pump
TRI-STATE Current
Magnitude
0.5
≤ V
CPoutRF
≤ V
CC -0.5
2
10
nA
|I
CPoutRF%MIS |
Magnitude of RF CP
Sink vs. CP Source
Mismatch
V
CPoutRF =VCC/2
T
A = 25˚C
RF_CPG > 2
3
10
%
RF_CPG
≤ 2
3
13
%
|I
CPoutRF%V |
Magnitude of RF CP
Current vs. CP Voltage
0.5
≤ V
CPoutRF
≤ V
CC -0.5
T
A = 25˚C
28
%
|I
CPoutRF%T |
Magnitude of RF CP
Current vs. Temperature
V
CPoutRF =VCC/2
4
%
IF SYNTHESIZER PARAMETERS
f
FinIF
Operating Frequency
75
800
MHz
p
FinIF
IF Input Sensitivity
-10
5
dBm
f
COMP
Phase Detector
Frequency
10
MHz
I
CPoutIFSRCE
IF Charge Pump Source
Current
V
CPoutIF =VCC/2
3.5
mA
I
CPoutIFSINK
IF Charge Pump Sink
Current
V
CPoutIF =VCC/2
-3.5
mA
I
CPoutIFTRI
IF Charge Pump
TRI-STATE Current
Magnitude
0.5
≤ V
CPoutIF
≤ V
CC RF -0.5
2
10
nA
|I
CPoutIF%MIS |
Magnitude of IF CP Sink
vs. CP Source Mismatch
V
CPoutIF =VCC/2
T
A = 25˚C
18
%
|I
CPoutIF%V |
Magnitude of IF CP
Current vs. CP Voltage
0.5
≤ V
CPoutIF
≤ V
CC -0.5
T
A = 25˚C
410
%
|I
CPoutIF%TEMP
Magnitude of IF CP
Current vs. Temperature
V
CPoutIF =VCC/2
4
%
OSCILLATOR PARAMETERS
f
OSCin
Oscillator Operating
Frequency
OSC2X = 0
5
110
MHz
OSC2X = 1
5
20
MHz
v
OSCin
Oscillator Input
Sensitivity
0.5
V
CC
V
P-P
I
OSCin
Oscillator Input Current
-100
100
µA
SPURS
Spurs in band
(Note 6)
-55
dBc
www.national.com
4


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