2-port 100GbE/40GbE/10GbE QSFP28 Signal Conditioner Reference Design TIDA-00427 (ACTIVE)

Description & Features

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Key Document

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

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Schematic/Block Diagram

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Design Guide

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TI Devices (8)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
DS250DF810  25 Gbps Multi-Rate 8-Channel Retimer  Ethernet  Sample & Buy View Design Kits & Evaluation Modules
DS280BR810  Low Power 28 Gbps 8-Channel Linear Repeater  Ethernet  Sample & Buy View Design Kits & Evaluation Modules
DS280BR820  Low Power 28 Gbps 8 Channel Linear Repeater  Ethernet  Sample & Buy View Design Kits & Evaluation Modules
DS280DF810  28 Gbps Multi-Rate 8-Channel Retimer  Ethernet  Sample & Buy View Design Kits & Evaluation Modules
DS280MB810  Low Power 28Gbps 8 Channel Repeater With Crosspoint  Ethernet  Sample & Buy View Design Kits & Evaluation Modules
MSP430F5529  25 MHz MCU with Integrated USB Phy, 128KB Flash, 8KB RAM, 12Bit/14 Channel ADC, 32BIT HW Multiplier  MSP430 ultra-low-power MCUs  Sample & Buy View Design Kits & Evaluation Modules
TPD4E004  4-Channel ESD Protection Array for High-Speed Data Interfaces  Circuit protection  Sample & Buy View Design Kits & Evaluation Modules
TPS735  500mA, Adjustable, Low Quiescent Current, Low-Noise, High-PSRR, Single-Output LDO Regulator  Power management  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
DS250DF810 Download -
DS280BR810 Download -
DS280BR820 Download
DS280MB810 Download
MSP430F5529 Download Download
TPD4E004 Download Download
TPS735 Download Download
Download Download

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Technical Documents

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User guides (2)
Title Type Size (KB) Date
PDF 4696 28 Jan 2016
PDF 1799 22 Jan 2016
Design files (7)
Title Type Size (KB) Date
ZIP 2204 04 Jan 2016
ZIP 2370 04 Jan 2016
PDF 4178 04 Jan 2016
PDF 447 04 Jan 2016
ZIP 1885 04 Jan 2016
PDF 115 04 Jan 2016
PDF 207 04 Jan 2016
Related Tools & Software

Reference Designs  ( 1 )

Name Part Number Tool Type
2-port 40GbE/10GbE QSFP+ Signal Conditioner Reference Design  TIDA-00417  TI Designs

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