LMX2364 National Semiconductor Corporation, LMX2364 Datasheet - Page 6

• Manufacturer Part Number: LMX2364
• Description: 2.6 Ghz Pllatinum Fractional Rf Frequency Synthesizer With 850 Mhz Integer If Frequency Synthesizer
• Manufacturer: National Semiconductor Corporation

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OSCILLATOR PARAMETERS
f
v
I
DIGITAL INTERFACE (DATA, CLK, LE, ENIF, ENRF, Ftest/LD, FLoutRF, FLoutIF)
V
V
I
I
V
V
MICROWIRE INTERFACE TIMING
T
T
T
T
T
T
PHASE NOISE
L
L
OSC
OSC
IH
IL
Electrical Characteristics
OSC
CS
CH
CWH
CWL
ES
EW
F1Hz
F1Hz
Note 3: Some reference divider ratios between the minimum and maximum are not realizable. See the section on R divider programming for more details.
Note 4: Normalized Phase Noise Contribution is defined as: L
measured at an offset frequency, f, in a 1 Hz Bandwidth. The offset frequency, f, must be chosen sufficiently smaller than the PLL’s loop bandwidth, yet large enough
to avoid substantial phase noise contribution from the reference source.
IH
IL
OH
OL
Symbol
(f) RF
(f) IF
Oscillator Operating
Frequency
Oscillator Sensitivity
Oscillator Input Current
High-Level Input Voltage
Low-Level Input Voltage
High-Level Input Current
Low-Level Input Current
High-Level Output Voltage
Low-Level Output Voltage
Data to Clock Set Up Time
Data to Clock Hold Time
Clock Pulse Width High
Clock Pulse Width Low
Clock to Load Enable Set
Up Time
Load Enable Pulse Width
RF Synthesizer’s
Normalized Phase Noise
Contribution, Fractional
Mode (Note 4)
RF Synthesizer’s
Normalized Phase Noise
Contribution, Integer Mode
(Note 4)
IF Synthesizer’s
Normalized Phase Noise
Contribution (Note 4)
Parameter
(V
Vcc
OSCinRF, OSCinIF
V
V
2.7 ≤ V
3.2
V
V
I
I
See Data Input Timing
See Data Input Timing
See Data Input Timing
See Data Input Timing
See Data Input Timing
See Data Input Timing
RF_OM = 1 (Fractional Mode)
f = 3 KHz
TCXO Reference Source
RF_CP = 1 (4 mA)
V
RF_OM = 0 (Integer Mode)
f = 3 KHz
TCXO Reference Source
RF_CP = 2 (4 mA)
V
f = 3 KHz
TCXO Reference Source
IF_CP = 1 (800 mA)
V
= V
OH
OL
F1Hz
OSC
OSC
IH
IL
ENIF
ENIF
ENRF
<
Vcp
= 0
= 500 µA
= V
= −500 µA
(f) = L(f) – 20·log(N) – 10log(f
V
= V
= 0V
= LOW
= LOW
Vcc
= LOW
Vcc
= 3.0V; −40˚C ≤ T
CC
Vcc
Conditions
≤ 5.5
≤ 3.2
6
A
COMP
≤ +85˚C except as specified) (Continued)
) where L(f) is defined as the single side band phase noise
V
CC
−100
−1.0
−1.0
Min
0.5
1.6
50
10
50
50
50
50
2
2
−0.4
Value
−208
−215
−212
Typ
Max
V
110
100
0.4
1.0
1.0
0.4
Vcc
dBc/Hz
dBc/Hz
dBc/Hz
Units
MHz
µA
µA
µA
µA
ns
ns
ns
ns
ns
ns
V
V
V
V
V
V