LMX2310U National Semiconductor Corporation, LMX2310U Datasheet - Page 7

• Manufacturer Part Number: LMX2310U
• Description: Pllatinum? Ultra Low Power Frequency Synthesizer For Rf Personal Communicationscommunications
• Manufacturer: National Semiconductor Corporation

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: Icc current is measured with Clock, Data and LE pins connected to GND. OSCin and Fin pins are connected to Vcc. PWDN bit is program to 0. Icc current
is the current into Vcc pin.
Note 5: See F
Note 6: See OSC
Note 7: Charge Pump Magnitude is controlled by CPo_4X bit [R18].
Note 8: See Charge Pump Measurement Definition for detail on how these measurements are made.
Note 9: Analog Lock Detect open drain output pin only can be pulled up to V
Note 10: See Serial Input Data Timing.
Note 11: Normalized Single-Side Band Phase Noise is defined as: L
(f)
Symbol
CC
= V
P
= V
IN
µC
Sensitivity Test Setup.
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 11)
LMX2310U
F
F
F
V
ICP
T
(Note 12)
LMX2311U
F
F
F
V
ICP
T
(Note 12)
LMX2312U
F
F
F
V
ICP
T
(Note 12)
LMX2313U
F
F
F
V
ICP
T
(Note 12)
(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)
= 10 MHz
= 4 mA
= 10 MHz
= 4 mA
= 10 MHz
= 4 mA
= 10 MHz
= 4 mA
= 10 MHz
= 4 mA
= 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
www.national.com
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
Units