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AI & Data Centres

Precision timing to maximise AI data-centre performance

AI performance depends on more than processing power. As increasingly powerful processors and accelerators exchange vast amounts of data at higher speeds, precision timing helps keep data moving, infrastructure synchronised and valuable compute resources working efficiently.

Rakon provides high-frequency, high-stability and ultra-low-jitter timing solutions across AI and hyperscale data centres, from optical transceivers and high-speed networking to network synchronisation, NICs, DPUs and AI accelerators.

Our expertise extends from XMEMS® resonator technology and proprietary ASIC design to digital control and high-frequency differential technology, enabling increasingly compact timing solutions that deliver the frequency, stability and ultra-low phase noise and jitter demanded by next-generation AI infrastructure.

Precision timing across AI and hyperscale data centres

Rakon's solutions address three critical areas of AI infrastructure:

Communication

Keeping data moving at high speed


Application areas: Optical transceivers, High-speed switches, SERDES, Scale-up networking, Scale-out networking

Timing solutions: High Frequency Ultra Low Jitter differential XOs, Ultra Low Noise VCXOs, Ultra Stable TCXOs, High Stability TCXOs

Highlighted specs: 500 MHz (with upcoming 625 MHz and 1.25 GHz) | 30 fs RMS jitter | ±1 ppm FvT | down to 1.2 x 1.0 mm footprint

Synchronisation

Keeping AI infrastructure working together


Application areas: Scale-up switches, Spine switches, Leaf switches,  Top-of-Rack switches

Timing solutions: Next-generation digitally controlled OCXOs, IC-OCXOs, Long-holdover discrete OCXOs

Highlighted Specs: Up to 1 GHz | ±5 ppb FvT | ±0.5 ppb/°C | I²C digital control | down to 7 x 5 mm footprint

Compute

Precision timing closer to the processors


Applications: Network Interface Cards (NIC), Data Processing Units (DPU), AI accelerators

Timing solutions: Digitally controlled OCXOs, IC-OCXOs, Digitally controlled TCXOs, Ultra Stable TCXOs, Compact High Stability TCXOs

Highlighted specs: ±10 ppb, slope ±0.5 ppb/°C, 50 fs RMS jitter, -170 dBc/Hz phase noise, I²C, down to 2.0 × 1.6 mm footprint

Rakon innovations that enable the next generation of AI timing

XMEMS® resonators

XMEMS® brings quartz performance into smaller packages, delivering the stability and low phase noise needed for demanding AI data centre applications.

Proprietary ASIC design

Our proprietary ASIC design enables greater control and optimisation, delivering higher performance, stability and efficiency in compact timing solutions.

Digital control technology

Our digital control technology enables smarter, more precise adjustment and compensation, delivering greater stability, flexibility and timing performance.

High-frequency technology

We are extending precision timing to higher frequencies while maintaining the low jitter and stability demanded by AI and hyperscaler infrastructure.

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Talk through your requirements with our sales engineers.

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Products

Small Form Factor IC OCXOs for Data Centre Applications

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Brand Product Series Product Name Image Package Size (LxWxH) Nominal Frequency (Fn) Frequency Stability (FvT) Temperature Range (°C) Long Term Stability Phase Noise (P/N) Contact Sales
Mercury Small Form Factor IC OCXO
ROM1490X 14.2 x 9.2 x 6.5 mm
14.2 x 9.2 x 8.0 mm 		10 to 50 MHz ±1.5 ppb -40 to 95 °C ≤±0.5 ppb/day
≤±0.3 ppm/year
≤±2.5 ppm/20 years 		Typ. P/N @10 MHz
-141 dBc/Hz @100 Hz
-160 dBc/Hz @10 kHz
-160 dBc/Hz @1 MHz 		Contact Rakon
Mercury Small Form Factor IC OCXO
ROM1490E 14.2 x 9.2 x 6.5 mm 10 to 50 MHz ≤±5 ppb -40 to 85 °C ≤±0.3 ppm/year
≤±2.5 ppm/20 years 		Typ. P/N @20 MHz
-135 dBc/Hz @100 Hz
-158 dBc/Hz @10 kHz
-160 dBc/Hz @1 MHz 		Contact Rakon
Mercury Small Form Factor IC OCXO
ROM1490EA 14.3 x 9.1 x 5.9 mm 10 to 50 MHz ≤±10 ppb -40 to 95 °C ≤±0.3 ppm/year
≤±2.5 ppm/20 years 		Typ. P/N @20 MHz
-135 dBc/Hz @100 Hz
-158 dBc/Hz @10 kHz
-160 dBc/Hz @1 MHz 		Contact Rakon
Mercury Small Form Factor IC OCXO
ROM9070EA 9.7 x 7.5 x 3.9 mm 10 to 50 MHz ≤±10 to 20 ppb -40 to 95 °C ≤±0.3 ppm/year
≤±2.5 ppm/20 years 		Typ. P/N @19.2 MHz
-137 dBc/Hz @100 Hz
-158 dBc/Hz @10 kHz
-158 dBc/Hz @1 MHz 		Contact Rakon

Discrete OCXOs for Data Centre Applications

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Brand Product Series Product Name Image Package Size (LxWxH) Nominal Frequency (Fn) Frequency Stability (FvT) Temperature Range (°C) 24 Hour Holdover Contact Sales
High End Telecom OCXO
ROX5242T1 52 x 42 x 14 mm 10, 20 MHz ≤0.1 ppb pk-pk -45 to 90 °C <1 µs Contact Rakon
High End Telecom OCXO
ROX5242T2 52 x 42 x 14 mm
52 x 42 x 19 mm 		5 to 15 MHz ≤±0.2 ppb -40 to 85 °C <3 µs Contact Rakon
High End Telecom OCXO
ROX2522S3 25.4 x 22 x 12.1 mm 10 to 40 MHz ≤1 ppb pk-pk -40 to 85 °C <8 µs Contact Rakon
High End Telecom OCXO
ROX3827T3 38.1 x 27.1 x 17 mm 5 to 40 MHz ≤1 ppb pk-pk -40 to 85 °C <5 µs Contact Rakon
High End Telecom OCXO
ROX3627T3 36.5 x 27 x 19 mm
36.5 x 27 x 13.7 mm 		5 to 40 MHz ≤±5 to 10 ppb -40 to 85 °C <5 µs Contact Rakon

PPS Disciplined OCXOs for Data Centre Applications

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Brand Product Series Product Name Image Package Size (LxWxH) Nominal Frequency (Fn) Frequency Stability (FvT) Temperature Range (°C) 24 Hour Holdover Contact Sales
PPS Disciplined OCXO (PPSDO)
ROD2522S2H 25.4 x 22.0 x 12.1 mm 10 to 20 MHz ≤0.5 ppb pk-pk -40 to 85 °C 1.5 µs Contact Rakon
PPS Disciplined OCXO (PPSDO)
ROD2522S2 25.4 x 22.0 x 12.1 mm 10 to 20 MHz ≤0.5 ppb pk-pk -40 to 85°C 1.5 µs Contact Rakon
PPS Disciplined OCXO (PPSDO)
ROD3827T2 38 x 27 x 12 mm 10 to 20 MHz ≤0.5 ppb pk-pk -40 to 85°C 1.5 µs Contact Rakon
PPS Disciplined OCXO (PPSDO)
ROD5242T1 52 x 42 x 14 mm 10 to 20 MHz ≤0.1 ppb pk-pk -40 to 85°C ≤1.5 µs Contact Rakon

Hybrid TCXOs for Data Centre Applications

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Brand Product Series Product Name Image Package Size (LxWxH) Nominal Frequency (Fn) Frequency Stability (FvT) Temperature Range (°C) Long Term Stability Contact Sales
Hybrid TCXO
RTH7050EA 7.5 x 5.5 x 3.3 mm 10 to 50 MHz ≤±5 ppb -40 to 95 °C ±0.5 ppb/day
≤±4.6 ppm/20 years 		Contact Rakon
Hybrid TCXO
RTH7050PA 7.5 x 5.5 x 3.3 mm 10 to 50 MHz ≤±20 ppb -40 to 105 °C ≤±0.3 ppm/year
≤±3.0 ppm/10 years
≤±4.6 ppm/20 years 		Contact Rakon

Ultra Stable TCXOs for Data Centre Applications

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Brand Product Series Product Name Image Package Size (LxWxH) Nominal Frequency (Fn) Frequency Stability (FvT) Temperature Range (°C) Long Term Stability Contact Sales
Low g-Sensitivity TCXO
High Frequency TCXO
Ultra Stable TCXO
RTN7050A 7.0 x 5.0 x 1.5 mm 10 to 160 MHz ≤±100 to 280 ppb -40 to 105°C ≤±10 ppb/day
≤±1 ppm/year
≤±4.6 ppm/20 years 		Contact Rakon
Low g-Sensitivity TCXO
High Frequency TCXO
Ultra Stable TCXO
RTN5032A 5.0 x 3.2 x 1.75 mm 10 to 160 MHz ≤±100 to 280 ppb -40 to 105°C ≤±10 ppb/day
±1 ppm/year
≤±4.6 ppm/20 years 		Contact Rakon
Ultra Stable TCXO
RPT7050A 7.0 x 5.0 x 1.5 mm 1.25 to 52 MHz ≤±0.1 to 0.5 ppm -55 to 105 °C ≤±1 – ±2 ppm/year
≤±3 – ±4 ppm/10 years 		Contact Rakon
Ultra Stable TCXO
RPT5032A 5.0 x 3.2 x 1.75 mm 1.25 to 52 MHz ≤±0.1 to 0.5 ppm -55 to 105 °C ≤±1 – ±2 ppm/year
≤±3 – ±4 ppm/10 years 		Contact Rakon
Ultra Stable TCXO
RPT7050J 7.0 x 5.0 x 1.5 mm 10 to 40 MHz ≤±100 to 280 ppb -55 to 105 °C ≤±20 ppb/day
≤±200 ppb/month
≤±1 ppm/year
≤±3 ppm/10 years 		Contact Rakon
Ultra Stable TCXO
RPT5032J 5.0 x 3.2 x 1.75 mm 10 to 40 MHz ≤±100 to 280 ppb -55 to 105 °C ≤±20 ppb/day
≤±200 ppb/month
≤±1 ppm/year
≤±3 ppm/10 years 		Contact Rakon
Ultra Stable TCXO
RPT7050P 7.0 x 5.0 x 1.5 mm 19.2 to 40 MHz ≤±100 to 500 ppb -55 to 105 °C ≤±20 ppb/day
≤±200 ppb/month
≤±1 ppm/year
≤±3 ppm/10 years 		Contact Rakon
Ultra Stable TCXO
RPT5032P 5.0 x 3.2 x 1.75 mm 19.2 to 40 MHz ≤±100 to 500 ppb -55 to 105 °C ≤±20 ppb/day
≤±200 ppb/month
≤±1 ppm/year
≤±3 ppm/10 years 		Contact Rakon

High Stability TCXOs for Data Centre Applications

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Brand Product Series Product Name Image Package Size (LxWxH) Nominal Frequency (Fn) Frequency Stability (FvT) Temperature Range (°C) Long Term Stability Contact Sales
High Stability TCXO
RST2016H 2.0 x 1.6 x 0.7 mm 13 to 52 MHz ≤±0.5 to 1.5 ppm -40 to 105 °C ≤±1 ppm/year Contact Rakon
High Stability TCXO
RST2520H 2.5 x 2.0 x 0.8 mm 10 to 52 MHz ≤±0.5 to 1.5 ppm -40 to 105 °C ≤±1 ppm/year Contact Rakon
High Stability TCXO
RST3225H 3.2 x 2.5 x 0.9 mm 10 to 52 MHz ≤±0.5 to 1.5 ppm -40 to 105 °C ≤±1 ppm/year Contact Rakon

Ultra Low Jitter XOs for Data Centre Applications

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Brand Product Series Product Name Image Package Size (LxWxH) Nominal Frequency (Fn) Frequency Stability (FvT) Temperature Range (°C) RMS Phase Jitter Contact Sales
Low Noise and Low Jitter XO
RXO2016M 2.0 x 1.6 x 0.75 mm 31.5 to 160 MHz ≤±25 to 100 ppm -40 to 105 °C 0.1~1 ps; 12 kHz to 20 MHz Contact Rakon
Low Noise and Low Jitter XO
RXO3225M 3.2 x 2.5 x 0.95 mm 13.5 to 200 MHz ≤±25 to 100 ppm -40 to 125 °C 0.1~1 ps; 12 kHz to 20 MHz Contact Rakon
Low Noise and Low Jitter XO
RXO5032M 5.0 x 3.2 x 1.2 mm 60 to 312.5 MHz ≤±15 to 50 ppm -40 to 105 °C 0.1 ps; 12 kHz to 20 MHz Contact Rakon
Low Noise and Low Jitter XO
RXO7050M 7.0 x 5.0 x 1.4 mm 13.5 to 800 MHz ≤±25 to 100 ppm -40 to 85 °C 0.1~1 ps; 12 kHz to 20 MHz Contact Rakon
Low Noise and Low Jitter XO
RXO2520P 2.5 x 2.0 x 0.8 mm 8 to 1500 MHz ≤±25 to 50 ppm -40 to 85 °C 0.5 ps; 12 kHz to 20 MHz Contact Rakon
Low Noise and Low Jitter XO
RXO2520R 2.5 x 2.0 x 0.8 mm 8 to 1500 MHz ≤±25 to 50 ppm -40 to 85 °C 1 ps; 12 kHz to 20 MHz Contact Rakon
Low Noise and Low Jitter XO
RXO2016C 2.0 x 1.6 x 0.85 mm 1.5 to 54 MHz ≤±25 to 50 ppm -40 to 125 °C 1 ps; 12 kHz to 20 MHz Contact Rakon
Low Noise and Low Jitter XO
RXO2520C 2.5 x 2.0 x 0.8 mm 0.5 to 133 MHz ≤±25 to 50 ppm -40 to 125 °C 1 ps; 12 kHz to 20 MHz Contact Rakon
Low Noise and Low Jitter XO
RXO3225C 3.2 x 2.5 x 0.9 mm 0.5 to 156.25 MHz ≤±25 to 50 ppm -40 to 125 °C 1 ps; 12 kHz to 20 MHz Contact Rakon

Standard Off-the-Shelf XOs for Data Centre Applications

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Brand Product Series Product Name Image Package Size (LxWxH) Nominal Frequency (Fn) Frequency Stability (FvT) Temperature Range (°C) Output Waveform Contact Sales
Standard XO
QEN09 2.0 x 1.6 x 0.8 mm 0.25 to 125 MHz ≤±25 to 100 ppm -55 to 125°C HCMOS
Contact RakonXpress
Standard XO
QEN08 2.5 x 2.0 x 0.9 mm 1 to 54 MHz ≤±25 to 100 ppm -40 to 85 °C HCMOS
Contact RakonXpress
Standard XO
QEN07 3.2 x 2.5 x 1.2 mm 0.25 to 125 MHz ≤±25 to 100 ppm -55 to 125 °C HCMOS
Contact RakonXpress
Standard XO
QEN05 5.0 x 3.2x 1.3 mm 0.25 to 156.25 MHz ≤±25 to 100 ppm -55 to 125 °C HCMOS
Contact RakonXpress
Standard XO
QEN101 7.0 x 5.0 x 1.4 mm 1 to 133 MHz ≤±25 to 100 ppm -40 to 85 °C HCMOS
TTL Load
Contact RakonXpress

AI timing FAQs

 

Why is precision timing important for AI data centres?

AI data centres depend on large numbers of processors, accelerators and network devices exchanging data at very high speeds. Precision timing provides the stable, low-noise reference clocks needed across this infrastructure, supporting reliable high-speed communication, accurate network synchronisation and efficient operation of valuable AI compute resources.

How can better timing improve AI performance?

AI performance depends not only on processing power, but also on how efficiently compute resources communicate and work together. Low-jitter, stable timing supports faster, reliable data transmission and precise synchronisation, helping reduce timing-related constraints and enabling AI infrastructure to make more effective use of its available computing power.

Why is low jitter important in AI data-centre networking?

Jitter is unwanted variation in the timing of a clock signal. As data rates increase, timing margins become tighter, making low-jitter reference clocks increasingly important. Ultra-low-jitter oscillators support signal integrity and reliable high-speed data transmission in applications such as optical transceivers, SERDES and high-speed AI data-centre networks.

Why do AI data centres need network synchronisation?

AI workloads are distributed across large numbers of interconnected compute resources that must exchange and process data efficiently. Precise network synchronisation provides a common timing reference across this infrastructure, helping coordinate network operations and minimise timing-related constraints in scale-up and scale-out networks connecting servers, accelerators and other resources.

Where are OCXOs and TCXOs used in AI data centres?

OCXOs and TCXOs provide stable frequency references at different points across AI infrastructure. OCXOs support precision network synchronisation in scale-up, spine, leaf and Top-of-Rack switches. Digitally controlled OCXOs and TCXOs, ultra-stable TCXOs and compact high-stability TCXOs can provide precision timing closer to AI compute hardware.

What timing solutions are used in NICs, DPUs and AI accelerators?

Timing requirements vary across the compute tray. NICs and DPUs can use digitally controlled OCXOs and TCXOs where high stability and frequency control are important. AI accelerators can use compact high-stability TCXOs, while ultra-stable, low-noise TCXOs such as Rakon's Niku™ technology address demanding compute timing requirements.

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