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PX-990

型号：

PX-990

描述：

晶体振荡器超低噪声和G灵敏度[ Crystal Oscillator Ultra Low Noise and G-Sensitivity ]

品牌：

VECTRON[ Vectron International, Inc ]

页数：

6 页

PDF大小：

284 K

下载PDF手册
PX-990  
Crystal Oscillator  
Ultra Low Noise and G-Sensitivity  
PX-990  
Features  
• Ultra low Phase Noise  
Applications  
• Vibration Environment  
• Ultra low G-Sensitivity  
• Vibration hardened  
• Tight Tolerances  
• Airborne and Military Equipment  
• Portable Equipment  
• Radar  
Performance Specifications  
Frequency Stabilities1 (Frequency Range - 60 to 120 MHz)  
Parameter  
Min  
Typical  
Max  
Units  
Condition  
vs. operating temperature  
range (referenced to nominal  
frequency)  
-15.0  
-25.0  
+15.0  
+25.0  
ppm  
ppm  
-20 to +70°C  
-40 to +85°C  
Initial tolerance  
vs. supply voltage change  
vs. load change  
vs. aging / 1 year  
vs. aging / 10 years  
-15.0  
-0.1  
-0.1  
-1.0  
-3.0  
+15.0  
+0.1  
+0.1  
+1.0  
+3.0  
ppm  
ppm  
ppm  
ppm  
ppm  
25°C  
VS 5ꢀ static  
Load 10ꢀ static  
after 30 days of operation  
after 30 days of operation  
Page 1 of 6  
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com  
Performance Specifications  
Supply Voltage (Vs)  
Parameter  
Min  
Typical  
15  
Max  
Units  
Condition  
50 Ω load  
Supply voltage (standard)  
Current consumption  
14.25  
15.75  
100  
VDC  
mA  
RF Output  
Signal [standard]  
Load  
Sinewave  
45  
11  
50  
13  
55  
15  
Ohm  
dBm  
dBc  
Output Power  
Harmonics  
Spurious  
50 Ω load  
50 Ω load  
50 Ω load  
-30  
-80  
dBc  
Additional Parameters  
-90  
dBc/Hz  
10 Hz  
100 Hz  
1 kHz  
10 kHz  
100 kHz  
1000 kHz  
-125  
-153  
-167  
-173  
-175  
dBc/Hz  
dBc/Hz  
dBc/Hz  
dBc/Hz  
dBc/Hz  
@ 120 MHz  
13 dBm  
sinewave  
no vibration  
Phase Noise2  
Weight  
35  
50  
g
Processing & Packing  
Handling & Processing Note  
Additional Environmental Conditions  
RTCA/DO-160 D, Section 8,  
Category R or R2 curve C and C1  
Random Vibration  
Shock  
MIL-STD-202G; Method 213B;  
15 g / 20 ms  
for softest shock absorber  
i.e. lowest resonance frequency  
Absolute Maximum Ratings  
supply voltage (Vs)  
16.0  
55  
V
Output Load  
45  
-40  
-55  
Ω
Operable Temperature Range  
Storage Temperature Range  
+85  
+105  
°C  
°C  
Page 2 of 6  
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com  
Outline Drawing / Enclosure  
Pin Connections  
1
N.C.  
2
3
4
Supply Voltage (Vs)  
RF-Output  
Ground (Case)  
Dimensions in mm  
Typical Phase Noise @ 120 MHz without vibration  
-80  
-100  
-120  
-140  
-160  
-180  
10  
100  
1000  
10000  
100000  
1000000  
10000000  
Offset Frequency [Hz]  
Page 3 of 6  
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com  
Typical G-Sensitivity @120 MHz without shock absorber  
Vibration spectrum  
2
G-Sensitivity: PX-990  
120MHz; 0,06g/Hz  
1,00  
0,90  
0,80  
0,70  
0,60  
0,50  
0,40  
0,30  
0,20  
0,10  
0,00  
0,1  
X-Axis  
Y-Axis  
Z-Axis  
Total  
0,01  
0,001  
0,0001  
10  
100  
1.000  
10  
100  
1.000  
10.000  
Frequency [Hz]  
Frequency [Hz]  
2
Phase noise: PX-990;  
120MHz; 0,06g/Hz  
Calculation equation according to Vig-Tutorial  
-60  
-70  
L( fv )  
g-sensitivity:  
2 ˜ f  
Apeak  
v
20  
G   
˜10  
0
X-Axis  
Y-Axis  
Z-Axis  
˜
f
-80  
Comments:  
Measured without shock absorbers  
Peak g-level:  
A
peak  
 
PSD ˜ 2  
OsciZllator  
-90  
-100  
-110  
-120  
-130  
-140  
Quarz  
Y
X
10  
100  
Offset Frequency [Hz]  
1.000  
Typical Frequency Stability vs Temperature  
Page 4 of 6  
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com  
Typical Phase Noise @ 120 MHz with shock absorber  
Page 5 of 6  
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com  
Ordering Information  
PX - 990 E - 255 - 120M0000  
Frequency  
Product Family  
PX: Clock  
Package  
Ultra Low G-Sensitivity  
Stability Code  
J-155: 15 ppm  
E-255: 25 ppm  
Temperature Range  
J: -20°C to +70°C  
E: -40°C to +85°C  
Notes:  
1. Contact factory for improved stabilities or additional product options. Not all options and codes are available at all  
frequencies.  
2. Phase noise degrades with increasing output frequency.  
3. Contact factory for availability.  
Unless other stated all values are valid after warm-up time and refer to typical conditions for supply voltage, frequency  
control voltage, load, temperature (25°C).  
Subject to technical modification.  
For Additional Information, Please Contact  
USA:  
Europe:  
Asia:  
Vectron International  
1589 Century Avenue, the 19th Floor  
Chamtime International Financial Center  
Shanghai, China  
Vectron International  
267 Lowell Road  
Hudson, NH 03051  
Tel: 1.888.328.7661  
Vectron International  
Landstrasse, D-74924  
Neckarbischofsheim, Germany  
Tel: +49 (0) 7268.801.100  
Tel: 86.21.6081.2888  
Fax: 86.21.6163.3598  
Fax: 1.888.329.8328  
Fax: +49 (0) 7268.801.282  
Disclaimer  
Vectron International reserves the right to make changes to the product(s) and or information contained herein without notice. No liability is assumed as a result of their use or application.  
No rights under any patent accompany the sale of any such product(s) or information.  
Rev: 02/2011  
Page 6 of 6  
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com  
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