VCXO And VCSO - Rakon

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Our Voltage Controlled Crystal Oscillators (VCXOs) and Voltage Controlled SAW Oscillators (VCSOs) provide industry leading low phase noise solutions over a wide range of frequencies.The high reliability range is certified to meet MIL standards and designed for space, defence, avionics, and instrumentation. The performance range features low jitter and low phase noise products ideal for applications in the positioning and telecommunications markets.

VCXO and VCSO

Low Phase Noise VCXO

Key specifications: • Frequency range: 1 to 2200 MHz • APR: ±5 to 200 ppm min. • Noisefloor: -171 dBc/Hz @100 MHzFind out more >

High Frequency and Low Phase Noise VCSO

Key specifications: • Frequency (Fn): 500 to 2000 MHz • Noisefloor: -166 dBc/Hz @ 1.6 GHz • Temperature range: -40 to 85°CFind out more >

High Reliability Space VCXO

Key specifications: • Frequency (Fn): 0.032 to 94 MHz • APR: ±40 to 250 ppm min. • Noisefloor: -145 dBc/Hz @ 20 MHzFind out more >

NewSpace VCXO and VCSO

Key specifications: • Frequency (Fn): 5 to 1500 MHz • APR: ±50 ppm min. • Jitter: 0.9 ps (12 kHz to 20 MHz)Find out more >

RakonXpress Products

For more information about RakonXpress Standard VCXOs, visit the RakonXpress product page.Find out more >

Frequently Asked Questions

What are the key applications of VCXOs?

VCXOs are key to building phase locked loops (PLLs) from scratch. These products are used for a variety of applications such as 5G RRHs, high speed DAC/ADC/SERDES, military radios, optical networks and microwave backhaul/ point to point.

What is the difference between an XO and a VCXO?

An XO is the simplest of all oscillators. Although the stability performance is usually the lowest of all the oscillator families, it excels in terms of floor phase noise and RMS jitter performance. A VCXO allows the user to manually adjust a control voltage to compensate for instabilities in the output frequency. It is used to bring the oscillator back to frequency after being impacted by instabilities (e.g. long term stability). Because of the additional components, a VCXO’s floor phase noise and RMS jitter are slightly impacted.

What are the differences between Sinewave, CMOS, LVPECL, LVDS output types?

Sinewave and CMOS outputs provide the best phase noise out of all these types. LVPECL and LVDS provide very good signal security to minimise external interferences and therefore are more secure output types. The last difference is that CMOS is unable to operate at higher frequencies (greater than 200MHz), whereas sinewave, LVPECL and LVDS can operate in the GHz frequency ranges.

Want to learn more about the various applications of these products?

Visit our technical documentation section for application notes, white papers, fact sheets and product briefs.

Technical documentation