The “Golden Ratio” of RF Design: Why 7050 TCXOs Are Making a Comeback in 5G and Precision Wireless

In the race to make everything smaller, the electronics industry rushed toward 3.2x2.5mm and even 2.0x1.6mm oscillators. For consumer gadgets, this was a triumph.

But for RF System Architects working on 5G small cells, microwave backhaul, and tactical radios, "smaller" often comes with a hidden penalty: Phase Noise degradation.

You need a reference source that balances modern integration with the laws of physics.

Introducing the XTALTQ 7050 Series: The 7.0x5.0mm SMD TCXO engineered for Extreme Low Phase Noise.

The Physics of Silence: Why Size Still Matters

To understand why the 7.0x5.0mm footprint is the "Sweet Spot" for high-end RF, we must look at the quartz blank itself.

1.Higher Q-Factor: The 7050 package accommodates a larger quartz strip. A larger vibrating mass allows for a higher Quality Factor ($Q$), which is inversely proportional to phase noise.

2.Lower Noise Floor: While a standard consumer-grade TCXO might struggle below -125 dBc/Hz, the XTALTQ 7050 Series is designed to push the noise floor significantly lower, essential for maintaining signal integrity in crowded spectrums.

3.Vibration Resistance: The larger contact area and robust ceramic package offer superior mechanical stability compared to smaller, fragile counterparts.

Bridging the Gap: Better than Standard TCXO, More Efficient than OCXO

Engineers often face a dilemma:

·Standard TCXO: Low power, but too noisy for critical uplinks.

·OCXO (Oven Controlled): Excellent stability, but power-hungry and bulky.

The XTALTQ 7050 Extreme Low Phase Noise TCXO fills this critical gap. It delivers near-OCXO phase noise performance while maintaining the low power consumption and pick-and-place manufacturing compatibility of an SMD component.

Key Technical Specifications

·Package: 7.0 x 5.0 mm Surface Mount (SMD)

·Phase Noise: Optimized for Close-in (10Hz/100Hz) and Floor performance.

·Stability: Ultra-stable temperature characteristics customized for harsh outdoor environments.

·Output: Clipped Sine / CMOS options available.

Ideal Applications

This component is not for a smart watch. It is built for infrastructure and professional instrumentation:

·5G Small Cells & Base Stations: Where synchronization precision determines network throughput.

·Satellite Terminals (VSAT/BUC): Ensuring clean up-conversion in Ku/Ka-band systems.

·Test & Measurement: Portable spectrum analyzers that require a lab-grade reference in a battery-powered chassis.

·Tactical Communications: Rugged radios requiring low jitter for encrypted data links.

Conclusion

Don't let quantization noise or jitter comprise your next RF design. When performance is paramount, step up to the component size that physics favors. The XTALTQ 7050 Series provides the pristine reference signal your high-bandwidth system requires.

100MHz 7050 TCXO BT0507N

10MHz 7050 TCXO BT0507B