Product parameters
| PN | Center Frequency | Phase Jitter (typ) | Frequency Stability | Operating Temperature | Output Waveform |
| CO21P6-312.500-33KDTST-LJ | 312.5MHz | 30fs | ±20ppm | -40℃~+85℃ | LVPECL/LVDS |
Product Features
- Ultimate Purity: 30fs Ultra-Low Phase Jitter – Safeguarding the Lifeline of AI Computing Transmission
- Precision and Stability: ±20ppm Over Full Temperature Range – No Frequency Drift Under Extreme Conditions
- Differential Output: Strong Anti-Interference – Suited for Complex AI Electromagnetic Environments
- Miniaturized Package: 2016 Footprint – Adapted to High-Density AI Integration
Applications
Suzhou Hangjing's CO21P6-312.500-33KDTST-LJ is ideal for below applications:
- AI Computing Clusters: High-speed GPU NVLink interconnects, PCIe 5.0/6.0 interfaces, AI server motherboards
- Mainstream High-Speed Optical Modules: 800G QSFPDD, 1.6T OSFP optical modules, compatible with optical modules for 800G, 1.6T, and 3.2T ultra-high-speed interconnect architectures in AI data centers
- Networking Equipment: 3.2T/6.4T Ethernet switches, routers, AI cluster firewalls
Product Advantages
Spur-Free
No PLL multiplication noise, lower BER.
CDR-Friendly
Reduces CDR complexity, saves DSP power.
Link Margin
Maximizes timing budget for long‑reach AI fabrics.
Certificate
Suzhou Hangjing's 2016 312.5MHz Low Jitter Differential Oscillator is manufactured to be lead-free and halogen-free, in full compliance with RoHS standards.
FAQ
Q: What are the significant advantages of Suzhou Hangjing's 312.5MHz true fundamental frequency solution compared to the traditional 156.25MHz multiplication scheme?
A:
| Comparison Dimension | Traditional 156.25MHz Frequency-Multiplying Solution | Hangjing 312.5MHz True Fundamental-Frequency Solution | Core Value for AI Scenarios |
| Clock Generation Method | 156.25MHz crystal oscillator output → internal PLL frequency multiplication to 312.5MHz | Crystal oscillator directly outputs 312.5MHz true fundamental frequency; no internal frequency multiplication required | Eliminates spurious signals from frequency multiplication, reduces bit error rate (BER) in AI links, and minimizes data retransmission |
| Phase Jitter | Frequency multiplication introduces additional noise; jitter typically ≥100fs | Native true fundamental-frequency output with no multiplication noise; jitter as low as 30fs | Achieves a 40% jitter reduction. In ultra-high-speed scenarios (800G/1.6T/3.2T), timing margin is extremely scarce; ultra-low jitter effectively prevents sampling errors in high-speed signals, significantly enhancing transmission reliability and meeting the demands of extreme-speed data exchange in AI supercomputing clusters |
| System Complexity | Requires additional PLL circuitry, increasing chip area and power consumption | Simplifies clock architecture, reducing design complexity and cost | Lowers overall power consumption of optical modules, alleviating thermal management pressure in AI data centers |
| CDR Stress | Large phase noise from multiplied clocks requires complex algorithms for CDR compensation | Large phase noise from multiplied clocks requires complex algorithms for CDR compensation | Reduces DSP computation overhead, freeing up more computing resources for AI model processing |
| Link Margin | Excessive jitter consumes too much timing budget, resulting in poor link error tolerance | Preserves ample jitter budget, supporting longer-distance transmission | Enables larger-scale AI cluster networking and increases interconnect density per rack |
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