Aurasemi Clock Chip Selection Guide
Selecting the right clock chip is crucial for system performance. This guide walks through the Aurasemi clock portfolio and provides selection criteria based on application requirements.
Clock Chip Types
Clock Generators
best for: Creating multiple clock frequencies from a single reference- Output frequencies: 1MHz to 2.1GHz
- RMS jitter: <100fs to <500fs
- Outputs: 2 to 10 differential pairs
Jitter Attenuators
best for: Cleaning noisy clock signals- Input jitter tolerance: Up to 10ps
- Output jitter: <100fs typical
- Loop bandwidth: Configurable
Clock Buffers
best for: Distributing clocks to multiple loads- Additive jitter: <50fs
- Fanout: 1:2 to 1:12
- Output types: LVDS/LVPECL/HCSL
Key Selection Parameters
Contact LiTong's application engineering team for personalized selection assistance.
💡 FAE Insights
Professional Insight
Clock selection requires balancing jitter performance, output configuration, and cost.
⚠️ Common Pitfalls
- ✗ Insufficient jitter margin
- ✗ Ignoring output loading effects
- ✗ Not considering temperature
- ✗ Selecting based on price alone
📋 Customer Cases
Networking Equipment Company
Telecommunications
Challenge
Clock jitter causing high BER in SerDes links
Solution
Redesigned with AU5425 ultra-low jitter clock generator
Customer Feedback
"Successful implementation with excellent results"
Results
BER improved by 100x, meeting IEEE 802.3bj spec
Frequently Asked Questions
1. Where can I find more information about this topic?
Additional information is available in the related articles and product datasheets. Contact LiTong FAE team for personalized support. For detailed specifications and application support on aurasemi products, refer to the datasheet or contact our team.
2. Where can I find the latest datasheet?
The latest datasheets are available on the LiTong website in the product pages. You can also contact LiTong sales or FAE team to request the most recent documentation. Always use the latest revision for new designs.
3. How do I request technical support?
LiTong provides multiple channels for technical support: (1) Contact your local FAE directly; (2) Email technical support at support@litong.com; (3) Call the technical hotline; (4) Submit a support request through the website. For complex design questions, schedule a meeting with our FAE team. We typically respond within 24 hours.
4. Are evaluation boards available?
Yes, evaluation boards are available for most Aurasemi products. Contact LiTong sales to request evaluation boards for your application. Boards include complete documentation, schematics, and example software. Evaluation boards are typically provided free of charge to qualified customers.