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LMX2512 Datasheet(PDF) 5 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part # LMX2512
Description  PLLatinum??Frequency Synthesizer System with Integrated VCO
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

LMX2512 Datasheet(HTML) 5 Page - National Semiconductor (TI)

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Electrical Characteristics (V
CC =VDD = 2.8 V, TA = 25 ˚C; unless otherwise noted) (Continued)
Symbol
Parameter
Condition
Min
Typ
Max
Units
IF PLL
f
Fin
Operating Frequency
(Note 8)
LMX2502LQ1635
IF_FREQ [1:0] = 10,
Default Value
440.76
MHz
LMX2512LQ0967
IF_FREQ [1:0] = 00,
Default Value
170.76
MHz
LMX2512LQ1065
IF_FREQ [1:0] = 01,
Default Value
367.20
MHz
P
Fin
IF Input Sensitivity
-10
0
dBm
fΦIF
Phase Detector Frequency
120
kHz
I
CPout
Charge Pump Current
IF_CUR [1:0] = 00
100
µA
IF_CUR [1:0] = 01
200
µA
IF_CUR [1:0] = 10
300
µA
IF_CUR [1:0] = 11
800
µA
DIGITAL INTERFACE (DATA, CLK, LE, LD, CE)
V
IH
High-Level Input Voltage
0.8 V
DD
V
DD
V
0.8 V
CC
V
CC
V
V
IL
Low-Level Input Voltage
0
0.2 V
DD
V
0
0.2 V
CC
V
I
IH
High-Level Input Current
-10
10
µA
I
IL
Low-Level Input Current
-10
10
µA
Input Capacitance
3
pF
V
OH
High-Level Output Voltage
0.9 V
DD
V
0.9 V
CC
V
V
OL
Low-Level Output Voltage
0.1 V
DD
V
0.1 V
CC
V
Output Capacitance
5pF
MICROWIRE INTERFACE TIMING
t
CS
Data to Clock Set Up Time
50
-
-
ns
t
CH
Data to Clock Hold Time
10
-
-
ns
t
CWH
Clock Pulse Width HIGH
50
-
-
ns
t
CWL
Clock Pulse Width LOW
50
-
-
ns
t
ES
Clock to Latch Enable Set Up Time
50
-
-
ns
t
EW
Latch Enable Pulse Width
50
-
-
ns
Note 4: In power down mode, set DATA, CLK, and LE pins to 0 V (GND).
Note 5: The reference frequency must also be programmed using the OSC_FREQ control bit. For other reference frequencies, please contact National
Semiconductor.
Note 6: For other frequency ranges, please contact National Semiconductor.
Note 7: Lock time is defined as the time difference between the beginning of the frequency transition and the point at which the frequency remains within +/- 1 kHz
of the final frequency.
Note 8: Frequencies other that the default value can be programmed using Words R4 and R5. See Programming Description for details.
www.national.com
5


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