參數(shù)資料
型號: LMX2335U
廠商: National Semiconductor Corporation
英文描述: PLLatinum Ultra Low Power Dual Frequency Synthesizer for RF Personal Communications
中文描述: PLLatinum超低功耗雙頻率合成射頻個人通信
文件頁數(shù): 10/48頁
文件大?。?/td> 3127K
代理商: LMX2335U
Electrical Characteristics
(Continued)
V
CC
= V
P
RF1 = V
P
RF2 = 3.0V, 40C
T
A
+85C, unless otherwise specified
Symbol
Parameter
Conditions
Value
Typ
Units
Min
Max
RF2 SYNTHESIZER PARAMETERS
ID
o
RF2
SOURCE
Current
RF2 Charge Pump Output Source
VD
o
RF2 = V
P
RF2/2
ID
o
RF2 Bit = 0
(Note 6)
VD
o
RF2 = V
P
RF2/2
ID
o
RF2 Bit = 1
(Note 6)
VD
o
RF2 = V
P
RF2/2
ID
o
RF2 Bit = 0
(Note 6)
VD
o
RF2= V
P
RF2/2
ID
o
RF2 Bit = 1
(Note 6)
0.5V
VD
o
RF2
V
P
RF2 - 0.5V
(Note 6)
VD
o
RF2 = V
P
RF2/2
T
A
= +25C
(Note 7)
-0.95
mA
-3.80
mA
ID
o
RF2
SINK
RF2 Charge Pump Output Sink
Current
0.95
mA
3.80
mA
ID
o
RF2
TRI-STATE
ID
o
RF2
SINK
Vs
ID
o
RF2
SOURCE
ID
o
RF2
Vs
VD
o
RF2
ID
o
RF2
Vs
T
A
OSCILLATOR PARAMETERS
F
OSC
Oscillator Operating Frequency
V
OSC
Oscillator Sensitivity
I
OSC
Oscillator Input Current
RF2 Charge Pump Output TRI-STATE
Current
RF2 Charge Pump Output Sink
Current Vs Charge Pump Output
Source Current Mismatch
-2.5
2.5
nA
3
10
%
RF2 Charge Pump Output Current
Magnitude Variation Vs Charge Pump
Output Voltage
RF2 Charge Pump Output Current
Magnitude Variation Vs Temperature
0.5V
VD
o
RF2
V
P
RF2 - 0.5V
T
A
= +25C
(Note 7)
VD
o
RF2 = V
P
RF2/2
(Note 7)
10
15
%
10
%
2
40
V
CC
100
MHz
V
PP
μA
μA
(Note 8)
V
OSC
= V
CC
= 5.5V
V
OSC
= 0V, V
CC
= 5.5V
0.5
-100
DIGITAL INTERFACE (Data, LE, Clock, F
o
LD)
V
IH
High-Level Input Voltage
V
IL
Low-Level Input Voltage
I
IH
High-Level Input Current
I
IL
Low-Level Input Current
V
OH
High-Level Output Voltage
0.8 V
CC
V
V
μA
μA
V
0.2 V
CC
1.0
1.0
V
IH
= V
CC
= 5.5V
V
IL
= 0V, V
CC
= 5.5V
I
OH
= 500 μA
1.0
1.0
V
CC
0.4
V
OL
MICROWIRE INTERFACE
t
CS
t
CH
t
CWH
t
CWL
t
ES
t
EW
Low-Level Output Voltage
I
OL
= 500 μA
0.4
V
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
Latch Enable Pulse Width
(Note 9)
(Note 9)
(Note 9)
(Note 9)
(Note 9)
(Note 9)
50
10
50
50
50
50
ns
ns
ns
ns
ns
ns
L
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