EX-240-CAD-308A-10.000 [VECTRON]
Oven Controlled Crystal Oscillators (OCXO’s); 恒温晶体振荡器（ OCXO的）
| 型号： | EX-240-CAD-308A-10.000 |
| 厂家： | 
Vectron International, Inc |
| 描述： | Oven Controlled Crystal Oscillators (OCXO’s) |
| 文件： | 总2页 (文件大小：42K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Oven Controlled Crystal Oscillators (OCXO’s)
Description:
The EX-240 Series offers a ruggedized hybrid thick film construction in a low
EX-240 (EMXO™)
profile, hermetically sealed 16 pin DDIL package, which can withstand severe
environmental conditions. This product series utilizes VI’s EMXOTM technology
resulting in excellent stability performance and fast warm-up with low power
consumption.
Features:
-8
* Temperature Stability: to ±1 x 10 over 0°C to +50°C
-9
* Acceleration Sensitivity: < 1 x 10 / g Total Gamma
* Low power consumption: < 0.7 W @ +25°C
* Shock: 1,000g’s peak, 0.5 ms
* Vibration: 20g peak to 2 kHz (Sine), 30 Grms overall to 2 kHz (Random)
Performance Characteristics
Parameter
Characteristics
Frequency Range:
10 to 20.48 MHz
Package Size:
Supply Voltage:
See next page for drawings and dimensions (reduced height option is available)
(C) +5 Vdc ±5%, (D): +3.3 Vdc ±5%
Supply Current (Steady State):
<140 mA @ +25°C , <220 mA @ -40°C with +5V supply
<210 mA @ +25°C , <330 mA @ -40°C with +3.3V supply
(reduced current option is available)
Turn-on Current:
Output Type:
<500 mA with +5Vdc supply, <600 mA with +3.3 Vdc supply
(A) HCMOS
Level "0" and "1":
Rise/Fall Time (10-90%):
Symmetry (Duty Cycle):
Output Type:
<0.4 Volts, >0.9 Vdd
<7 ns
50/50 ±10% (at 50% Vdd)
(H) +3 dBm minimum into 50 ohms
- 20 dBc
Harmonics:
Spurious:
- 60 dBc
Temperature Stability:
B-108 = ± 10 ppb over 0°C to +50°C
C-208 = ± 20 ppb over 0°C to +70°C
(Note: Tighter stabilities and wider temperature D-308 = ± 30 ppb over -20°C to +70°C
ranges are available, please consult factory.)
F-508 = ± 50 ppb over -40°C to +85°C
-9
Aging (10MHz Typical):
<1x10 /day average, <1x10-7 / year average, <1x10-6 /10 years
Short-Term Stability (Allan Deviation):
<1x10-10, 0.1 seconds to 10 seconds
Phase Noise:
(typical at 10 MHz, Static Condition)
Offset
10 Hz
100 Hz
1 kHz
10 kHz
100 kHz
Phase Noise
-100 dBc/Hz
-130 dBc/Hz
-140 dBc/Hz
-145 dBc/Hz
-150 dBc/Hz
Frequency vs. Supply:
<2.5x10-9 per percent change
Warm-up (Restabilization):
(frequency relative to that 1 hour after turn-on,
following 24 hours off time, at +25°C)
Standard
60 seconds
120 seconds
Optional (consult factory)
45 seconds
90 seconds
<±1x10-6
<±1x10
-7
Electrical Frequency Adjust:
>± 1ppm range with 0 to Vdd input voltage
Acceleration Sensitivity:
(10 MHz)
1x10-9/g Total Gamma, standard
5x10-10/g available at 10 MHz (consult factory)
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • Web: www.vectron.com
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Oven Controlled Crystal Oscillators (OCXO’s)
240 Package Outline Drawing
EX-240
Pin
1
2-4
8
Function
Frequency Control
N/C. Internal use ONLY
Case, Ground
Output
9
13-15
16
N/C
Supply
Pin numbers are for reference, only, they do not appear on unit
Reflow Profile
OCXO
TIME(s)
Environmental Specifications (designed to meet)
Shock
-
1000g’s peak, 0.5 ms per MIL-STD-202, Method 213, Condition E
Vibration (Sine)
- 20g peak to 2 kHz per MIL-STD-202, Method 204, Condition D
Vibration (Random)- 30 Grms overall per MIL-STD-202, Method 214, Condition I-H
Acceleration
Thermal Shock
Altitude
- 1000g per MIL-STD-202, Method 212, Condition C
- 50 cycles, -55C to +85C per MIL-STD 202, Method 107, Condition A-2
- 70,000 ft per MIL-STD 202, Method 105, Condition C
Seal
-
Hermetic per MIL-STD-202, Method 112, Condition C
Humidity
- 90% RH per MIL-STD-202, Method 103, Condition A
Capabilities
VI can offer this series with screening and conformance inspection based upon MIL-PRF-55310 for Product level B. Also, a
reduced current option is available. Please contact your local VI representative or VI for details.
Ordering Information
EX
C
A
F
–
5 0 8
A
–
MHz
240
–
12.800
EX = EMXO
Output Frequencies
10.000 MHz
10.230 MHz
12.800 MHz
13.000 MHz
16.384 MHz
Package
240
19.440 MHz
20.000 MHz
20.480 MHz
Supply Voltage
C = 5.0 Vdc ±5%
D = 3.3 Vdc ±5%
Other Options
A = Electrical Frequency Adjust (standard)
F = Fixed Frequency, No Frequency Adjust,
Initial Accuracy at +25°C is ±1 ppm
Output
A = HCMOS
H = + 3dBm sine
Temperature & Stability
B-108 = ± 10 ppb over 0°C to +50°C
C-208 = ± 20 ppb over 0°C to +70°C
D-308 = ± 30 ppb over -20°C to +70°C
F-508 = ± 50 ppb over -40°C to +85°C
Note: Tighter stabilities and wider temperature
ranges are available, please consult the factory.
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • Web: www.vectron.com 7Dec05
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