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ROX3827T3

ROX3827T3

Product catalog summary

Overview: The ROX3827T3 OCXO is a cost-effective, highly stable oscillator designed for telecom applications. It offers performance comparable to the ROX-T2 model, with total stability of less than 50 ppb per year. Available frequencies range from 5MHz to 40MHz, with power supply options of 3.3V, 5V, and 12V. The oscillator features an embedded post-compensation system with a micro-controller, optimized for Stratum 3E and up to Stratum 2.

Standard Specifications:

Nominal Frequency: 5 - 40 MHz, with standard frequencies including 10, 12.8, 13, 20, 24.576, 26, and 40 MHz.
Operating Temperature Range: -40 to 85°C.
Frequency Stability Over Temperature: 1 ppb peak to peak in calm air.
Temperature Slope: 8 ppt/°C at 0.5°C/minute.
Free-run Accuracy Over 20 Years: ±1 ppm, meeting Telcordia GR-1244 requirements.
Supply Voltage Stability: ±1 ppb at ±5% at 25°C.
24 Hours Holdover Performance: ±15 µs for 11.7 mm height and ±7 µs for 17 mm height.
Hysteresis Effect: 0.3 ppb over -40 to +85°C.
Long Term Stability (Aging): Varies by height, with ±50 ppb/year for 11.7 mm and ±15 ppb/year for 17 mm.
Short Term Stability: ±0.005 ppb for 1s to 10s integration time.
Retrace Effect at 25°C: ±5 ppb after 24 hours off and 1 hour on.
Supply Voltage (VCC): 5V ±5%, with options for 3.3V and 12V.
Power Consumption: 3.5W during warm-up, 1.5W steady state at 25°C.
Warm-up Time: ±5 minutes to reach within 10 ppb of prior steady state output frequency.
Harmonics (Sinewave): -35 dBc.
Start-up Time: 1 second.
Oscillator Output: Sinewave 5 to 9 dBm with 50 Ω load, compatible CMOS output.

Environmental Specifications:

Vibration: IEC 68-2-06 test Fc-Severity 500/10.
Shocks: IEC 68–2-27 test Ea severity 50A.
Storage Temperature: -55 to 90°C.

Features and Applications:

Holdover below 7 µs /15 µs over 24 hours, including temperature changes.
Small form factor with temperature sensor output.
Available in two package heights: 11.7 mm and 17 mm.
Compliant with IEEE 1588: G.8263, G.8273.x.
Suitable for Stratum 3E timing modules, Stratum 2 stability, time and frequency references, wireless base stations, and LTE-TDD base stations.

Catalog excerpts

Discrete OCXO | Standard OCXO with thermal compensation The ROX3827T3 OCXO is the cost effective highly stable oscillator for telecom applications. The performance over temperature range is comparable to the current ROX-T2. Its total stability is down to less than 50 ppb per year across all causes. Frequencies available are from 5MHz to 40MHz, and power supply options are 3.3V, 5V & 12V. These 38 x 27 mm package series of oscillators are designed with an embedded post-compensation system with a micro-controller. They are optimized designs for the Stratum 3E and up to Stratum 2. Applications ■ IEEE 1588: G.8263, G.8273.X ■ Stratum 3E timing modules ■ Stratum 2 stability ■ Time and frequency references ■ Wireless Base Stations ■ LTE-TDD Base Stations Features ■ Hold over below 7 ps /15 ps over 24 hours, including temperature changes ■ Standard frequencies: 10, 12.8, 13, 20, 24.576, 26 and 40 MHz ■ Small form factor ■ Temperature sensor output ■ 2 packages height : 11.7 mm and 17 mm Parameter Min. Typ. Max. Unit Test Condition / Description

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Discrete OCXO | Standard OCXO with thermal compensation SSB Phase Noise: ROX-T3 OCXO (Typical value at 25°C) 10.00 MHz ROX-T3 OCXO SSB Phase Noise Offset Frequency Hz) Model Outline: ROX3827T3 OCXO SIDE VIEW 1 Vc (Frequency control) / NC 2 Vref (Reference Voltage) 3 Vcc (Power Supply) 4 Output (Output Signal) 5 GND D For internal use E For internal use HEIGHT (H) OPTIONS: H = 11.7 mm Max, or H = 17.0 mm Max. NOTE: Outline unit is mm. Tolerance is ± 0.2mm if it has not been indicated.

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ROX3827T3

ROX3827T3

Catalog excerpts

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