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XFP System and 10G Common Electrical Interface Dong Zheng BitBlitz Communications Milpitas, California

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Presentation on theme: "XFP System and 10G Common Electrical Interface Dong Zheng BitBlitz Communications Milpitas, California"— Presentation transcript:

1 XFP System and 10G Common Electrical Interface Dong Zheng BitBlitz Communications Milpitas, California

2 Agenda  XFP modules vs. others  Host systems architectures  Implementation examples

3 Box-to-Box: Optical Modules 300 pin MSA Large on Board Footprint Cost: 20x x16 Mux I/F Xenpak Plug-able Cost: 4-6x XAUI I/F Xpak/X2 Plug-able Cost: 2x XAUI I/F XFP/SFP Plug-able Cost: 1x 10G Ser I/F REQUIREMENTS! Lower Cost Smaller Form Factor (Greater Line Card density) Lower Power

4 XFP vs. other modules Notes: * The XFI electrical spec is part of the XFP spec, but is expected to be used elsewhere. XENPAKXPAKX2XFPXFP/XENPAK Power (W) , 2.5, 3.5, >3.5 ~50% (level 2,3) Width (mm) ~50% Length (mm) ~50% Depth ~50%

5 10GE Applications ASIC 3G SerDes 3G SerDes 10G SerDes XGMII 80 XAUI 16 XGMII 80 XAUI 16 XFI 4 Host Module XENPAK, XPAK, X2 XFP Optical XFP philosophy: Minimal electrical circuits in module

6 10GE Electrical Interfaces InterfacesSpeed/wireNo. of wiresDistance XGMII312.5Mbps803” XAUI3.125Gbps16>40” XFI Gbps4<7” XFP host design guide line: XFI 10G interface keeps short XAUI extends reach distance

7 10G CEI SR (XFI)  Rate from 9.95Gbps to 11.09Gbps for SONET, 10GE, 10GFC applications  Max recommend host PCB length <200mm, depending on geometry and material Near-end eye maskFar-end eye mask

8 Design Example Devices used: 10G SerDes: BBTX100 3G SerDes: BBT3420 Standard FR-4

9 Test Results Note: Far-end eye Near-end mask Potential driving optics directly

10 Summaries  XFP modules are lower power, smaller form factor, lower cost for higher line card density over competing solutions  10G electrical interface is more challenging compared to XENPAK based modules  Reference system has demonstrated feasibility of the XFP host system, with significant margin on 10G electrical interface.


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