Breakthrough Performance Across All Key Metrics
Designed for demanding timing environments, the OD50HE series surpasses conventional OCXOs in frequency accuracy, temperature stability, holdover capability, and long‑term aging – with multiple parameters reaching rubidium‑clock levels.
🔹 Nanosecond‑level Locking Accuracy, Parts‑per‑Trillion Long‑Term Deviation
Free‑running mode: initial frequency accuracy of ±50 ppb
After 10‑minute GNSS lock: frequency deviation converges to ±1.0 ppb
After 24‑hour deep lock: average frequency deviation drops to ±1.0 ppt
This short‑ and medium‑term stability matches entry‑level rubidium atomic clocks, meeting the reference requirements of the vast majority of high‑end timing applications.
🔹 Exceptional Stability Across the Full Temperature Range
Over the entire industrial temperature span of ‑40°C to +85°C, frequency stability remains within ±0.1 ppb – far superior to standard OCXOs.
Even under significant diurnal temperature swings or harsh outdoor conditions, output frequency remains highly consistent, effectively eliminating temperature‑induced timing errors.
🔹 Robust Holdover – Accurate Timing Even Without Satellite Signals
Equipped with a high‑performance holdover algorithm, after 7 days of continuous GNSS 1PPS locking, the module achieves:
24‑hour holdover deviation of ±1.5 µs – even with complete satellite signal loss, under ambient temperature fluctuations of ±10°C at 1°C/min rate.
Daily aging rate: as low as ±0.2 ppb
First‑year aging: ±20 ppb
10‑year cumulative aging: only ±0.15 ppm
This long‑term frequency drift performance significantly surpasses conventional OCXOs and approaches rubidium atomic clock levels, substantially reducing the frequency and cost of system recalibration.
🔹 Low Phase Noise for High‑End Signal Applications
At 25°C:
Phase noise at 1 Hz offset: < -80 dBc/Hz
Phase noise at 10 kHz offset: < -155 dBc/Hz
The output signal features a clean spectrum and ultra‑low phase jitter, making it suitable for direct use as a frequency reference in high‑end communication equipment and test & measurement instruments.
Mature Architecture with Industrial‑Grade Design – Balancing Ease of Use and Reliability
The OD50HE series adopts a standardized, industry‑compatible design that minimises replacement costs and maximises application flexibility.
📦 Package & Compatibility
50×50 mm 14‑pin through‑hole package (OCXO5050P14)
Compatible with board‑level layouts of mainstream high‑end OCXOs and miniaturised rubidium clocks – allowing customers to upgrade designs without extensive hardware modifications.
🔌 Comprehensive Interface Configuration
10 MHz HCMOS frequency output – compatible with standard digital systems
Independent 1PPS input/output channels – supporting external reference access and synchronisation signal output
UART serial interface (default 115200‑N‑8‑1) – supporting NMEA‑format time‑of‑day (TOD) read/write and device status queries
Dedicated lock status and control pins – providing real‑time Lock/Holdover feedback and external switching capability
🛡️ Reliability & Protection
Passed rigorous vibration, shock, and temperature cycling tests per IEC 60068 standards
ESD protection: HBM 2kV
Moisture sensitivity level: MSL 1
Steady‑state operating current: only 600 mA (at 25°C) – significantly lower than rubidium clocks of comparable accuracy, reducing system cooling and power supply demands.
Breaking the Cost Barrier for High‑Precision Timing – Empowering Diverse Industries
For years, the high cost of rubidium atomic clocks has limited the widespread adoption of high‑precision timing across industries. The OD50HE series eliminates the need for expensive rubidium vapour cells and physical resonance cavities, with a procurement cost that is only a fraction of rubidium clocks of equivalent performance – while also avoiding the lifespan degradation issues inherent to rubidium devices, resulting in lower long‑term maintenance costs. It truly delivers "rubidium‑level performance at OCXO‑level cost."
🌐 Ideal Applications
With its balanced combination of performance, cost, and reliability, the OD50HE is well‑suited for:
Telecommunications – 5G/6G base station time synchronisation, core network time servers, optical transport network synchronisation nodes
Power Industry – Smart grid PMU synchrophasor measurement, substation precision timing, distribution automation synchronisation
Test & Measurement – High‑end oscilloscopes, signal analysers, calibration equipment frequency references
Industrial & Transportation – Industrial automation synchronised control, rail transit signalling systems, urban security time unification
Aerospace & Surveying – Satellite ground station timing terminals, geological exploration equipment, high‑precision surveying reference sources
About Suzhou Hangjing Elec & Tech Co., Ltd
Suzhou Hangjing Elec & Tech Co., Ltd (HCI) is a professional manufacturer of frequency control components based in Suzhou, China. With a comprehensive product portfolio and a strong commitment to quality and customer support, the company serves clients across the globe in consumer, industrial, automotive, and telecommunications sectors.
The release of the OD50HE series GNSS‑disciplined OCXO module challenges the long‑held industry assumption that "high precision inevitably comes with high cost," making rubidium‑grade timing performance scalable across more applications. The product is now officially available, with sample applications open – offering a more cost‑effective, locally produced alternative for high‑precision time synchronisation needs across industries.
For more information, sample requests, or technical inquiries, please contact:
Suzhou Hangjing Elec & Tech Co., Ltd
[www.hcixtal.com] | [tony@hci.com.hk] | [86 (0) 512-65916689]