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參數資料
| 型號： | LMX2355TM |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | XO, clock |
| 英文描述： | PLLatinum Fractional N RF/ Integer N IF Dual Low Power Frequency Synthesizer |
| 中文描述： | PLL FREQUENCY SYNTHESIZER, 2500 MHz, PDSO24 |
| 封裝： | TSSOP-24 |
| 文件頁數： | 4/23頁 |
| 文件大小： | 403K |
| 代理商： | LMX2355TM |
Absolute Maximum Ratings
(Notes 1, 2)
Parameter
Symbol
Value
Typ
Units
Min
0.3
0.3
0.3
0.3
0.3
65
Max
6.5
6.5
6.5
6.5
Power Supply Voltage
V
CC
RF
V
CC
IF
Vp
RF
Vp
IF
Vi
Ts
T
L
V
V
V
V
V
C
C
Voltage on any pin with GND = 0V
Storage Temperature Range
Lead Temperature (Solder 4 sec.)
V
CC
+ 0.3
+150
+260
Recommended Operating Conditions
Parameter
Symbol
Value
Typ
Units
Min
2.7
V
CC
RF
V
CC
V
CC
40
Max
5.5
V
CC
RF
5.5
5.5
+85
Power Supply Voltage
V
CC
RF
V
CC
IF
V
pRF
V
pIF
T
A
V
V
V
V
C
Operating Temperature
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 test conditions, see the Electrical Characteristics. The
guaranteed specifications apply only for the test conditions listed.
Note 2:
This Device is a high performance RF integrated circuit with an ESD rating
<
2kV and is ESD sensitive. Handling and assembly of this device should only
be done at ESD-free workstations.
Electrical Characteristics
All min/max specifications are guaranteed by design, or test, or statistical methods.
(V
cc
= V
cc
= V
P
= V
P
= 3.0V; 40C
<
T
A
<
+85C except as specified)
Symbol
Parameter
Conditions
Value
Typ
Units
Min
Max
GENERAL
I
CC
Power Supply Current
RF and IF
IF Only
RF_EN = IF_EN = LOW
6.0
1.1
20
8.5
2.0
50
2.5
550
50
10
0
0
0
V
CC
mA
mA
μA
GHz
MHz
MHz
MHz
dBm
dBm
dBm
V
PP
I
CC-PWDN
f
in
RF
f
in
IF
f
OSC
f
φ
Pf
in RF
Power Down Current
RF Operating Frequency
IF Operating Frequency
Oscillator Frequency
Phase Detector Frequency
RF Input Sensitivity
0.5
10
2
No load on OSC
RF
RF and IF
V
CC
= 3.0V
V
CC
= 5.0V
2.7V
≤
V
CC
≤
5.5V
OSC
IF
, OSC
RF
15
10
10
0.5
Pf
in IF
V
OSC
CHARGE PUMP
ICPo-
source RF
IF Input Sensitivity
Oscillator Sensitivity
RF Charge Pump Output
Current (see Programming
Description 3.2.2)
VCPo Vp/2, RF_CP_WORD =
0000
VCPo = Vp/2, RF_CP_WORD =
0000
VCPo = Vp/2, RF_CP_WORD =
1111
VCPo = Vp/2, RF_CP_WORD =
1111
100
μA
ICPo-
sink RF
100
μA
ICPo-
source RF
1.6
mA
ICPo-
sink RF
1.6
mA
L
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