How to Choose an OCXO OC2626: A Beginner's Guide

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How to Choose an OCXO OC2626: A Beginner's Guide.

Do you want precise timing in your electronic applications? An Oven Controlled Crystal Oscillator (OCXO) is the answer. With improved stability and accuracy, OCXOs are ideal for telecommunications, instrumentation, aerospace, and military applications. Here are some factors to consider when choosing an OCXO, specifically the OC2626 model.

1. Frequency.

OCXOs have different frequencies that need to be matched to the application's clock speed requirements. The OC2626 typically provides a frequency range of 10 MHz to 100 MHz.

2. Stability and Accuracy.

OCXOs offer superior stability and accuracy compared to other oscillators. The OC2626's short-term stability is usually measured within the range of parts per billion (ppb) for stability over short durations. Long-term stability can withstand extreme temperature gradients, minimizing frequency drift over an extended period.

3. Temperature Stability.

Temperature stability is crucial when choosing an OCXO. Changes in temperature can affect frequency accuracy, so ensure that your chosen OCXO has sufficient temperature stability levels to cater to your application's temperature conditions. The OC2626's typical temperature stability is between +/- 2 ppb/degrees Celsius.

4. Power Consumption.

OCXOs are known to consume more power than traditional oscillators because they require a heating element to regulate the crystal's temperature. OC2626's power consumption is slightly low compared to its counterparts, with a typical power consumption of 5 watts.

5. Package Options.

OCXO package options should match your application's electronic needs. OC2626 typically comes in different sizes, with standard outputs of 3.3 volts or 5 volts, and different frequency ranges in an industry-standard package.

6. Aging characteristics.

OCXOs have aging characteristics where its frequency changes over time, even when under stable and fixed temperature conditions. Aging is usually measured in parts per billion per year and differs from one model to another. The OC2626 has low aging constants of < 5 ppb/year, which makes it an ideal choice for applications that require long-term stability.

7. Calibration.

Calibration is the process of adjusting your OCXO's frequency. An OCXO with a strict calibration mechanism should top your list when choosing an OCXO. The OC2626's calibration mechanism is usually through a 2.5 or 5-volt D.C. supply's voltage adjustment.

In conclusion, choosing the appropriate OCXO oscillator that suits your application needs is vital. The OC2626 is the ideal OCXO for applications that require significant stability and accuracy. Its frequency, temperature stability, power consumption, package options, aging characteristics, and calibration mechanisms make it one of the most popular OCXO models. Consider these factors to get optimum performance and accuracy from your application.

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