Ultra-Low Phase Noise OCXO

TKD Ultra-Low Phase Noise OCXO oscillators combine oven control with premium resonator design to deliver the cleanest possible signal, ideal for radar, satellite ground stations, atomic-clock systems and high-end test equipment. Exceptional noise floors support the most demanding RF references.

Ranges of Ultra-Low Phase Noise OCXO

These precision oscillators combine oven-controlled stability with minimized phase noise, delivering a clean reference for noise-critical systems. Compact packages serve radar, EW, satellite communications, metrology and advanced instrumentation.

OC-3627LN

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OC-5151LN

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Reducing Phase Noise in OCXO Frequency Sources

Noise mechanisms

Phase noise in OCXOs comes from the oscillator loop, buffer and supply; high-Q crystals and low-noise loop design minimize each contributor.

Crystal selection

Premium blanks with high Q and low stress provide the lowest achievable noise floor for the carrier frequency.

Measurement

Phase noise is characterized at multiple offsets (e.g. 1 Hz to 10 MHz); compare specifications at the offsets your system cares about.

Low-Noise Power and Layout Considerations for Precision OCXO

Dedicated LDO

Power the OCXO from an ultra-low-noise LDO with remote sensing if available, isolating it from digital switching noise.

Grounding

Use a star or isolated ground for the OCXO and keep its return path separate from high-current digital returns.

Shielding

A grounded shield around the OCXO and clean layout away from clock and data buses preserve the low noise floor.

Low-Noise Power and Layout Considerations for Precision OCXO

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Ultra-Low Phase Noise OCXO | TKD

Ranges of Ultra-Low Phase Noise OCXO

OC-3627LN

OC-5151LN

Reducing Phase Noise in OCXO Frequency Sources

Low-Noise Power and Layout Considerations for Precision OCXO