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

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