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RFPO65

Product catalog summary

Overview: The RFPO65 is part of the world's first ASIC-based OCXO product family, utilizing Rakon's patented Mercury™ ASIC technology. It is Stratum 3 compliant, offering temperature stability as low as ±10ppb over -20 to 70°C and short-term aging typically less than ±2ppb per day. The integrated oven ensures short warm-up times and low power consumption of 350mW at room temperature. The ASIC architecture provides a 1000x reliability improvement over traditional OCXOs, available in a Dual-In-Line (DIL) package.

Standard Specifications:

Nominal Frequency: 10–26 MHz, with standard frequencies including 10, 12.8, 19.2, 19.44, 20, 24.576, 25, and 26MHz.
Frequency Calibration: ±0.5 ppm initial accuracy at 25°C ±2°C.
Reflow Shift: ±1 ppm measured ≥ 60 minutes after reflow.
Frequency Stability: ±10–±100 ppb over temperature in still air.
Operating Temperature Range: -40 to 85°C.
Supply Voltage Stability: ±10 ppb with ±5% variation.
Load Sensitivity: ±10 ppb with ±5pF/±10% variation.
Warm-up Time: Less than 3 minutes to reach ±20ppb of frequency after 1 hour at 25°C.
Acceleration Sensitivity: Less than 2 ppb/g.
Holdover Drift: Less than ±2.5–±4 ppb over 24 hours with temperature variation ≤ ±1°C.
Free-run Accuracy: ±4.6 ppm over 20 years.
Loop Bandwidth: 3 mHz for wander generation compliance.
Long-term Stability (Aging): Less than ±2 ppb per day after 30 days of continuous operation, ±1 ppm for the first year, ±3 ppm over 10 years.
Root Allan Variance (20 MHz): 7.10^-11 at tau = 1.0s.
Supply Voltage (Vcc): 2.7–5.5 V with ±5% variation.
Input Power: 1000 mW during warm-up, 400 mW steady state at 25°C.
Oscillator Output: C/Sinewave 0.8 to 1.1 Vpk-pk, HCMOS output with specific voltage levels and load conditions.

Features:

Frequency stability over temperature as low as ±10ppb over -20 to 70°C.
Low power consumption and high reliability.
Stratum 3 compliance.

Applications: Suitable for small cells, switches and routers, time & frequency references, SyncE, and IEEE 1588.

Additional Information: The document also mentions typical SSB phase noise values at 25°C and MTIE, with RMS jitter ranging from 290 to 620 fs depending on the nominal frequency (12 kHz ~ 5 MHz).

Catalog excerpts

Stratum 3 Small Cells Switches and Routers Time & Frequency References SyncE and IEEE 1588 Standard Specifications Parameter Frequency calibration Reflow shift ppm ppm Frequency stability over temperature in still air Frequency slope ΔF/ΔT in still air Operating temperature range Supply voltage stability Load sensitivity ppb/°C °C ppb ppb Acceleration sensitivity Holdover drift ppb/g ppb Free‐run accuracy Loop bandwidth for wander generation compliance ppm mHz Root Allan Variance (20 MHz) Supply voltage (Vcc) Input power (warm up) Input power (steady state in still air, 25°C) Oscillator output – C/Sinewave Oscillator output – HCMOS Output voltage level high (VOH) Output voltage level high (VOL) Duty cycle Rise and fall times Load ppb ppm ppm V mW mW Vpk‐pk V V % ns pF The time needed for the frequency to be within ±20ppb of the frequency after 1 hour, at 25°C. This parameter is frequency, assembly and operating history dependent Gamma vector of all 3 axes, 30 to 1500Hz 24 hours, temperature variation ≤ ±1°C. After 30 days of continuous operation All causes, 20 years life, reference to nominal

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