LMX2310 National Semiconductor, LMX2310 Datasheet - Page 7

• Manufacturer Part Number: LMX2310
• Description: PLLatinum Ultra Low Power Frequency Synthesizer for RF Personal Communications
• Manufacturer: National Semiconductor

PHASE NOISE CHARACTERISTICS
L
L(f)
N
Electrical Characteristics
V
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is
intended to be functional, but do not guarantee specific performance limits. For guaranteed specifications and conditions, see the Electrical Characteristics. The
guaranteed specifications apply only for the conditions listed.
Note 2: This device is a high performance RF integrated circuit with an ESD rating
workstations.
Note 3: Typical Conditions are at a T
Note 4: See F
Note 5: See OSC
Note 6: Charge Pump Magnitude is controlled by CPo_4X bit [R18].
Note 7: See Charge Pump Measurement Definition for detail on how these measurements are made.
Note 8: Analog Lock Detect open drain output pin only can be pulled up to V
Note 9: See Serial Input Data Timing.
Note 10: Normalized Single-Side Band Phase Noise is defined as: L
Note 11: Phase Noise is measured using a reference evaluation board with a loop bandwidth of approximately 12 kHz. The phase noise specification is the
composite average of 3 measurements made at frequency offsets of 2.0 kHz, 2.5 kHz and 3.0 kHz.
(f)
Symbol
CC
= V
P
= V
IN
Sensitivity Test Setup.
µC
Normalized Single
Side-Band Phase Noise
Single Side-Band Phase
Noise
IN
Sensitivity Test Setup.
= 3.0V, −40˚C
Parameter
A
of 25˚C.
<
T
A
<
+85˚C unless specified otherwise.
F
F
V
ICP
T
(Note 10)
LMX2310U
F
F
F
V
ICP
T
(Note 11)
LMX2311U
F
F
F
V
ICP
T
(Note 11)
LMX2312U
F
F
F
V
ICP
T
(Note 11)
LMX2313U
F
F
F
V
ICP
T
(Note 11)
(Continued)
φ
OSC
A
IN
φ
OSC
A
IN
φ
OSC
A
IN
φ
OSC
A
IN
φ
OSC
A
OSC
OSC
OSC
OSC
OSC
= 200 kHz
= 200 kHz
= 200 kHz
= 200 kHz
= 50 kHz
= 25˚C
= 25˚C
= 25˚C
= 25˚C
= 25˚C
O
O
O
O
O
= 2450 MHz
= 1960 MHz
= 902 MHz
= 450 MHz
Conditions (Note 3)
= 4 mA
= 4 mA
= 4 mA
= 4 mA
= 4 mA
= 10 MHz
= 10 MHz
= 10 MHz
= 10 MHz
= 10 MHz
= 1.0 V
= 1.0 V
= 1.0 V
= 1.0 V
= 1.0 V
N
(f) = L(f) − 20 log (F
PP
PP
PP
PP
PP
ext
7
that will not exceed 6.5V.
<
2 kV. Handling and assembly of this device should only be done at ESD free
IN
/ F
φ
), where L(f) is defined as the Single Side-Band Phase Noise.
Min
−159
Typ
−78
−80
−85
−85
Max
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dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
Units