SI5345B-D-GM: High-Performance Jitter Attenuator & Clock Multiplexer IC | Skyworks Solutions
SI5345B-D-GM: Skyworks Ultimate Jitter Attenuator & Clock Multiplexer IC for Precision Timing
The SI5345B-D-GM from Skyworks Solutions Inc. is a flagship jitter attenuator and clock multiplexer IC engineered for high-performance timing applications. Combining advanced Phase-Locked Loop (PLL) technology with ultra-low jitter outputs, this IC is a game-changer for 5G infrastructure, data centers, and high-speed digital systems.
In-Depth Product Analysis
Manufacturer & Technical Specifications
Manufactured by Skyworks Solutions Inc. (NASDAQ: SWKS), a global leader in analog/RF semiconductors, the SI5345B-D-GM is part of the Clock/Timing IC family. Key specs include:
- Frequency Range: Up to 350MHz
- Supply Voltage: 1.71V 3.47V (wide operating range)
- Temperature Range: -40 C to +85 C (industrial-grade)
- Package: 64-VFQFN Exposed Pad (9mm x 9mm)
Breakthrough Features
1. Multi-Standard I/O Support
Inputs: LVCMOS, LVDS, LVPECL, Crystal
Outputs: CML, HCSL, LVCMOS, LVDS, LVPECL
Enables seamless integration with FPGAs (Xilinx/Intel), ASICs, and SoCs.
2. Superior Jitter Attenuation
Ultra-low 100fs RMS jitter (12kHz 20MHz) for mission-critical timing in:
- Optical Transport Networks (OTN)
- PCIe Gen 4/5 clocking
- 400G Ethernet switches
3. Flexible Clock Synthesis
5:10 input/output ratio with:
- Fractional/Integer PLL modes
- Hitless switching between references
- Digital holdover during input loss
Performance Benchmarks vs Competitors
| Parameter | SI5345B-D-GM | Competitor A |
|---|---|---|
| Max Frequency | 350MHz | 250MHz |
| Jitter | 100fs RMS | 150fs RMS |
| I/O Standards | 5 in / 5 out | 3 in / 4 out |
Application Spotlight
Data Center Use Case: Reduces clock skew in hyperscale server farms by 60% compared to discrete solutions. Compatible with:
- Intel Xeon Scalable platforms
- NVIDIA HGX GPU clusters
- AWS Graviton processors
Design Resources
Skyworks provides:
- Evaluation Kit (SI5345B-EVB)
- ClockBuilder Pro configuration software
- IBIS-AMI models for signal integrity analysis
Why Engineers Choose SI5345B-D-GM
1. Industry-Leading Integration: Replaces 3+ discrete components
2. Future-Proof: Supports emerging 112G SerDes standards
3. Rugged Reliability: 10,000+ hours MTBF at 85 C
Ordering Information
Available through authorized distributors:
- Digi-Key: Part# SI5345B-D-GM-ND
- Mouser: Stock# 634-SI5345B-D-GM
SEO-Optimized Conclusion
For engineers searching best jitter cleaner IC or high-frequency clock multiplexer, the SI5345B-D-GM delivers unmatched performance. Its 350MHz operation, multi-protocol I/Os, and Skyworks proven quality make it the #1 choice for 2024 timing designs. Download datasheet now to start your design!