參數(shù)資料
型號(hào): LMX2352TM
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類: XO, clock
英文描述: CAP,CER,DISC,RAD,100PF,10%,1KV
中文描述: PLL FREQUENCY SYNTHESIZER, 1200 MHz, PDSO24
封裝: PLASTIC, TSSOP-24
文件頁數(shù): 5/20頁
文件大?。?/td> 378K
代理商: LMX2352TM
Electrical Characteristics
(V
cc
RF
= V
cc
IF
= V
P
RF
= V
P
IF
= 3.0V; 40 C
<
T
A
<
85 C except as specified)
(Continued)
Symbol
Charge Pump
ICPo-
source
Parameter
Conditions
Min
Typ
Max
Units
RF
ICPo-
sink RF
ICPo-
source
RF Charge Pump
Output Current (see
Programming
Description 3.2.2)
VCPo Vp/2, RF_CP_WORD = 0000
100
μA
VCPo = Vp/2, RF_CP_WORD = 0000
VCPo = Vp/2, RF_CP_WORD = 1111
100
1.6
μA
mA
RF
ICPo-
sink RF
ICPo-
source
VCPo = Vp/2, RF_CP_WORD = 1111
VCPo = Vp/2, CP_GAIN_8 = 0
1.6
100
mA
μA
IF
ICPo-
sink IF
ICPo-
source
IF Charge Pump Output
Current (see
Programming
Description 3.1.4)
VCPo = Vp/2, CP_GAIN_8 = 0
VCPo = Vp/2, CP_GAIN_8 = 1
100
800
μA
μA
IF
ICPo-
sink IF
ICPo-
Tri
VCPo = Vp/2, CP_GAIN_8 = 1
0.5
VCPo
Vp - 0.5
-40 C
<
TA
<
85 C
VCPo = Vp/2
TA = 25 C
800
μA
nA
Charge Pump
TRI-STATE Current
CP Sink vs. Source
Mismatch
-2.5
2.5
ICPo-
sink
vs.
ICPo-
source
ICPo vs.
VCPo
RFICPo
= 400 μA - 1.6 mA
3
10
%
CP Current vs. Voltage
0.5
VCPo
Vp -
0.5
T
A
= 25 C
VCPo = Vp/2
-40 C
<
TA
<
85 C
RFICPo
= 800 μA - 1.6 mA
8
15
%
ICPo vs. T
CP Current vs
Temperature
8
%
Digital Interface
V
IH
V
IL
I
IH
I
IL
I
IH
I
IL
V
OH
High-level Input Voltage
Low-level Input Voltage
High-level Input Current
Low-level Input Current
Oscillator Input Current
Oscillator Input Current
High-level Output
Voltage
High-level Output
Voltage
(Note 4)
(Note 4)
V
IH
= V
CC
= 5.5 V, (Note 4)
V
IL
= 0, V
CC
= 5.5 V, (Note 4)
V
IH
= V
CC
= 5.5 V
V
IL
= 0, V
CC
= 5.5 V
I
OH
= 500 μA
0.8 Vcc
V
V
μA
μA
μA
μA
V
0.2 Vcc
1.0
1.0
100
1.0
1.0
100
V
CC
0.4
V
OL
I
OL
= 500 μA
0.4
V
MICROWIRE Timing
t
CS
Data to Clock Setup
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
See Data Input Timing
50
ns
t
CH
See Data Input Timing
10
ns
t
CWH
t
CWL
t
ES
See Data Input Timing
See Data Input Timing
See Data Input Timing
50
50
50
ns
ns
ns
t
EW
See Data Input Timing
50
ns
Note 3:
Minimum operating frequencies are not production tested - only characterized.
Note 4:
except fin, OSCin and OSCx
www.national.com
5
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