OX-990 Oven Controlled Crystal Oscillators (OCXO)

Product catalog summary

Overview: The OX-990 is an Oven Controlled Crystal Oscillator (OCXO) designed for ultra-low noise and G-sensitivity, suitable for applications in airborne, military, portable equipment, and radar systems. It operates within a frequency range of 60 MHz to 120 MHz, with a standard frequency of 120 MHz.

Key Features:

Ultra-low phase noise and G-sensitivity.
Vibration hardened with tight tolerances.
Operable in harsh environments, including airborne and military equipment.

Frequency Stability:

Frequency stability is maintained within -200 to +200 ppb over an operating temperature range of -40 to +70°C, with an optional range extending to -40 to +85°C.
Initial tolerance and stability against supply voltage, load changes, and aging are specified with precise ppm values.

Performance Specifications:

Supply voltage ranges from 14.25 to 15.75 VDC, with current consumption at 200 mA steady state and 550 mA during warm-up.
RF output is a sinewave with a 50 Ω load, offering output power between 7 to 16 dBm depending on configuration.
Phase noise is specified at various offsets, with values improving under optional configurations.
G-sensitivity is rated at 0.5 ppb/g without shock absorbers, with optional configurations available.

Environmental Conditions:

Random vibration and shock resistance are compliant with RTCA/DO-160 D and MIL-STD-202G standards.
Device is non-washable and non-RoHS compliant.

Absolute Maximum Ratings:

Supply voltage up to 16.0 V, operable temperature range from -40 to +85°C, and storage temperature range from -55 to +105°C.

Mechanical and Electrical Connections:

Pin connections include control voltage input, supply voltage, RF output, and ground.
Dimensions and mechanical resonance frequency specifications are provided.

Ordering Information:

Product family code: OX-990, with options for ultra-low G-sensitivity and specific frequency configurations.

Disclaimer: Vectron International reserves the right to make changes to the product and information without notice. No liability is assumed for their use or application.

Catalog excerpts

OX-990 Oven Controlled Crystal Oscillators (OCXO)-1

Oven Controlled Crystal Oscillator Ultra Low Noise and G-Sensitivity • Ultra low Phase Noise • Ultra low G-Sensitivity • Vibration hardened • Tight Tolerances • Vibration Environment • Airborne and Military Equipment • Portable Equipment • Radar Frequency Range Standard Frequencies Performance Specifications Frequency Stabilities1 Max vs. operating temperature range (referenced to nominal frequency) vs. operating temperature range (referenced to nominal frequency) optional -40 to +85°C extended temperature range might reduce performance 3 Initial tolerance vs. supply voltage change vs. load change vs. aging / day vs. aging / 1 year vs. aging / 10 years 25°C VS ±5% static Load ±10% static after 30 days of operation after 30 days of operation after 30 days of operation Page 1 of 8 Vectron International • 267 Lowell Road, Suite 102, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com

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OX-990 Oven Controlled Crystal Oscillators (OCXO)-2

Performance Specifications Supply Voltage (Vs) Parameter Supply voltage (standard) Current consumption stedy state Current consupmtion during warm up RF Output Signal [standard] Output Power Output Power Harmonics Spurious Frequency Tuning (EFC) Absolute Pulling Range Tuning Slope Pulling range is sufficient to tune the oscilator over lifetime of 10 years and all circumstancers to nominal frquency Control Voltage Range Frequency control input impedance Additional Parameters Phase Noise dBc/Hz dBc/Hz dBc/Hz dBc/Hz dBc/Hz dBc/Hz dBc/Hz dBc/Hz dBc/Hz dBc/Hz dBc/Hz dBc/Hz optional without shock absorbers3...

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OX-990 Oven Controlled Crystal Oscillators (OCXO)-3

Outline Drawing / Enclosure Parameter G295 including vibration isolators. Mechanical resonance frequency Please specify vibration profile and phase noise max values under vibration Parameter G313 without vibration isolators. Condition Option please specify vibration profile and phase noise max values under vibration NC / Control Voltage Input (Vc) / Enable Supply Voltage (Vs) Ground (Case) Page 3 of 8 Vectron International • 267 Lowell Road, Suite 102, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com

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OX-990 Oven Controlled Crystal Oscillators (OCXO)-4

Typical Phase Noise @ 120 MHz 10 dBm without vibration ■ : rtgdrnt ESOS^A Sfgrwl Source Aooty Typical Phase Noise @ 120 MHz, with optional 13 dBm, without vibration Phase Noise Start 1 Hz Phase Noise: Meas Vectron International • 267 Lowell Road, Suite 102, Hudson, NH 03051 -Tel: 1-88-VECTRON-1 • http://www.vectron.com

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OX-990 Oven Controlled Crystal Oscillators (OCXO)-5

Typical G-Sensitivity @120 MHz without shock absorber Calculation equation according To Vig-TuTorial Measured without shock absorbers Vectron International • 267 Lowell Road, Suite 102, Hudson, NH 03051 -Tel: 1-88-VECTRON-1 • http://www.vectron.com

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OX-990 Oven Controlled Crystal Oscillators (OCXO)-6

Typical Frequency Stability vs Temperature @ 10 dBm -40..+70°C Typical Frequency Stability vs Temperature @ 13 dBm -40..+85°C optional Vectron International-267 Lowell Road, Suite 102, Hudson, NH 03051 - Tel: 1-88-VECTRON-1 -http://www.vectron.com

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OX-990 Oven Controlled Crystal Oscillators (OCXO)-7

Typical Phase Noise @ 120 MHz with vibration OX-990 without shock absorber vibration spectrum DCM60 curve C Vectron International-267 Lowell Road, Suite 102, Hudson, NH 03051 - Tel: 1-88-VECTRON-1 -http://www.vectron.com

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OX-990 Oven Controlled Crystal Oscillators (OCXO)-8

Ordering Information Product Family OX: OCXO Package Ultra Low G-Sensitivity Pin 1 function EN: enable function APR 0: APR 0 (EFC) blank: function not reqired 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...

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