參數(shù)資料
型號(hào)： EX-245-C-AF-107FBN-12.8000MHZ
廠商： VECTRON INTERNATIONAL
元件分類： XO, clock
英文描述： OCXO, CLOCK, 12.8 MHz, CMOS OUTPUT
封裝： MINIATURE PACKAGE-16/10
文件頁(yè)數(shù)： 1/3頁(yè)
文件大?。?/td> 305K
代理商： EX-245-C-AF-107FBN-12.8000MHZ
EX-245 Evacuated Miniature Oven Controlled Crystal Oscillator
EMXO
TM
Vectron International - 267 Lowell Road, Hudson, NH 03051 - Tel: 1-88-VECTRON-1 - Web: www.vectron.com
- 1 -
EX-245 Series
Hi-Reliability Evacuated Miniature Crystal Oscillator
EMXO
TM
Features
Radiation Tolerant to > 100krad (SI) total dose
Low power consumption: <0.7W @ 25
oC, <1.1W @-40oC
Low profile package: 0.93”(W) x 1.03” (L) x 0.35” (H)
Fast warm-up: 3 minutes @ 25
oC
Frequencies:10 to 20MHz
Screen to Class S* or B* per Mil-PRF-55310
Applications
Reference clock for space application
Military airborne and Mobile system
Note:
* Limit upper temperature to 85
oC and Constant Acceleration to 1000Gs
* Leak test is not applicable due to the package sealed under vacuum
Performance Characteristics
Parameters
Ordering
Code
Conditions
units
Minimum
Typical
Maximum
Frequency
MHz
10
20
Supply Voltage
C
V
4.75
5.0
5.25
Turn-on Power for 2 minutes @ 25 oC
W
2
Steady State @ 25 oC
W
0.70
Power Consumption
Steady State @ -40 oC
W
1.10
<1 x 10-6
Sec
120
Warm-up Time @ 25 oC
<1 x 10-7
Sec
180
Operating
o
C
-40
+85
Temperature
Storage
o
C
-55
+85
Duty Cycle
%
40
60
Rise/Fall Time (10% to 90% Vdd) with15pF Load
nSec
7
Logic Level “0”
Volt
0.1Vdd
CMOS Output
A
Logic Level “1”
Volt
0.9Vdd
G
Sine into 50Ohms Load
dBm
0.0
1.5
3
H
Sine into 50Ohms Load
dBm
3.0
4.5
6
Harmonics
dBc
-25
Sine Output
Spurious
dBc
-60
C-308
0oC to +70oC Reference to Frequency @ 25oC
ppb
+/-30
D-508
-20oC to +70oC Reference to Frequency @ 25oC
ppb
+/-50
F-107
-40oC to +85oC Reference to Frequency @ 25oC
ppb
+/-100
+/-5% of Supply Voltage
ppb
+/-10
Stability
+/-5% of Load Change
ppb
+/-10
After 7 days of operation
ppb/day
2
1st Year
ppb/year
200
10 to <12MHz
ppb/10year
1000
12 to <16MHz
ppb/10year
1500
Aging
16 to 20MHz
ppb/10year
2000
Allan Deviation
Tau = 1 second
2 x 10-10
@ 10Hz
dBc/Hz
-100
@ 100Hz
dBc/Hz
-130
@ 1kHz
dBc/Hz
-140
@ 10kHz
dBc/Hz
-145
Phase Noise
@ 100kHz
dBc/Hz
-150
EFC (0V to 4V)
A
Reference to nominal frequency
Sufficient to compensate 10 years aging
Fixed Frequency
F
Initial Accuracy reference to nominal frequency
ppm
-1.0
+1.0
Vref
Source Current 1mA maximum
Vdc
4.0
4.1
4.2
G-Sensitivity
Test at 10g sine vibration at 100Hz
/g
1 x 10-9
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