Abracon O-C25AC Precision Ultra Low Phase Noise OCXO

Introduction

The Abracon O-C25AC is a high-performance 100 MHz oven-controlled crystal oscillator (OCXO) designed for systems that require exceptionally stable and spectrally clean timing references. Its compact 25 mm × 25 mm form factor combines precision frequency control with ultra-low phase-noise performance.

Part Description

The O-C25AC is built around an SC-cut crystal placed within a temperature-controlled oven. This construction minimizes frequency variation caused by environmental temperature changes, making it suitable for demanding timing and synchronization applications.

Key characteristics include:

• Output frequency: 100 MHz
• Output waveform: Sine wave
• Crystal type: SC-cut crystal
• Phase noise: Up to -175 dBc/Hz at 100 kHz offset
• Frequency stability: ±20 ppb across -40°C to +85°C
• First-year aging: 0.1 ppm
• Package size: 25 mm × 25 mm
• Device type: Oven-controlled crystal oscillator (OCXO)

Its low phase noise helps reduce timing jitter and unwanted spectral spreading, while its high temperature stability supports reliable operation in changing environmental conditions.

Applications

Potential applications for the Abracon O-C25AC include:

• High-performance frequency reference systems
• RF signal generators
• Wireless base stations
• Test and measurement instruments
• Precision clock distribution equipment
• Phase-locked loop reference sources
• Microwave and RF communications systems
• Radar and electronic warfare platforms
• Satellite communications equipment
• Network synchronization systems
• Scientific instrumentation
• High-resolution data acquisition systems

Industries

Possible industries using this OCXO include:

• Telecommunications
• Aerospace and defense
• Satellite communications
• Test and measurement
• Industrial automation
• Scientific research
• Broadcast infrastructure
• Networking and data communications
• Semiconductor test
• Navigation and positioning systems

Usage Ideas

1. Low-Jitter RF Synthesizer
   Use the O-C25AC as the reference clock for a PLL-based RF synthesizer to produce stable, low-noise local oscillator frequencies.

2. Precision Frequency Counter Reference
   Integrate the 100 MHz OCXO into a laboratory frequency counter or timer to improve measurement accuracy and long-term repeatability.

3. Network Timing Module
   Build a synchronization reference module for telecommunications or industrial Ethernet equipment that needs a stable holdover clock during network timing interruptions.

Conclusion

The Abracon O-C25AC is a precision 100 MHz OCXO intended for applications where frequency stability, low aging, and extremely low phase noise are essential. Its SC-cut crystal, oven-controlled design, and wide operating temperature range make it a strong timing-reference option for telecommunications, RF equipment, test instruments, and advanced synchronization systems.