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LMX2485 Datasheet(Fiches technique) 3 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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Absolute Maximum Ratings (Notes 1, 2)
Parameter
Symbol
Value
Units
Min
Typ
Max
Power Supply Voltage
V
CC
-0.3
4.25
V
Voltage on any pin with GND = 0V
V
i
-0.3
V
CC+0.3
V
Storage Temperature Range
T
s
-65
+150
˚C
Lead Temperature (Solder 4 sec.)
T
L
+260
˚C
Recommended Operating Conditions
Parameter
Symbol
Value
Units
Min
Typ
Max
Power Supply Voltage (Note 1)
V
CC
2.5
3.0
3.6
V
Operating Temperature
T
A
-40
25
+85
˚C
Note 1: “Absolute Maximum Ratings” indicate limits beyond which damage to the device may occur. "Recommended Operating Conditions" indicate conditions for
which the device is intended to be functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical
Characteristics. The guaranteed specifications apply only for the test conditions listed. The voltage at all the power supply pins of VddRF1, VddRF2, VddRF3,
VddRF4, VddRF5, VddIF1 and VddIF2 must be the same. VCC will be used to refer to the voltage at these pins and ICC will be used to refer to the sum of all currents
through all these power pins.
Note 2: This Device is a high performance RF integrated circuit with an ESD rating < 2 kV and is ESD sensitive. Handling and assembly of this device should only
be done at ESD-free workstations.
Electrical Characteristics (V
CC = 3.0V; -40˚C
≤ T
A
≤ +85˚C unless otherwise specified)
Symbol
Parameter
Conditions
Value
Units
Min
Typ
Max
Icc PARAMETERS
I
CCRF
Power Supply Current,
RF Synthesizer
IF PLL OFF
RF PLL ON
Charge Pump TRI-STATE
3.3
mA
I
CCIF
Power Supply Current,
IF Synthesizer
IF PLL ON
RF PLL OFF
Charge Pump TRI-STATE
1.7
mA
I
CCTOTAL
Power Supply Current,
Entire Synthesizer
IF PLL ON
RF PLL ON
Charge Pump TRI-STATE
5.0
mA
I
CCPD
Power Down Current
CE = ENOSC = 0V
CLK, DATA, LE = 0V
110
µA
RF SYNTHESIZER PARAMETERS
f
FinRF
Operating
Frequency
(Note 3)
LMX2485
RF_P = 8
500
2000
MHz
RF_P = 16
500
3000
LMX2485E
RF_P = 8
50
2000
RF_P = 16
50
3000
p
FinRF
Input Sensitivity
500 - 3000 MHz
-15
0
dBm
50 - 500 MHz (LMX2485E only)
-5
f
COMP
Phase Detector
Frequency
(Note 4)
50
MHz
I
CPoutRFSRCE
RF Charge Pump
Source 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
www.national.com
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