2-port 100GbE/40GbE/10GbE QSFP28 Signal Conditioner Reference Design
TIDA-00427
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Key Document
- Two-Port 40- and 100-GbE QSFP28 Signal Conditioner Reference Design Guide
(PDF 4696 KB)
28 Jan 2016
- TIDA-00427 DS280BR810 100G QSFP28 Test Setup
(PDF 1799 KB)
22 Jan 2016
Description
This verified reference design is a signal conditioning solution for front-port QSFP28 supporting two 100GbE ports compatible with 100G-CR4/SR4/LR4, 40G-CR4/SR4/LR4 and 10G SFF-8431 requirements. The design is applicable to optical and passive/active copper cables. It allows for reach extension between the Switch ASIC and the front-port QSFP28 which is often required for the outermost ports of a Top-of-Rack (ToR) switch or for add-in mezzanine implementations of QSFP28 line cards. This reference design offers the flexibility for users to upgrade from a DS280BR810 Repeater to the pin-compatible DS250DF810 Retimer.
Features
- Front-port stacked QSFP28 implementation with signal conditioning to support 100GbE/40GbE/10GbE optical and passive copper
- Extends reach between Switch and front-port by up to 3x beyond CAUI-4 host channel loss limit
- Low-power/low-cost solution for front-port signal conditioning
- Applicable to Top-of-Rack (ToR) switch and line card systems
- Single power supply, no firmware required, no heatsink required, no reference clock required
- Lab-tested HW example including 100GbE/40GbE/10GbE-specific test data
See the Important Notice and Disclaimer covering reference designs and other TI resources.