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DS125BR800A Datasheet Low-Power 12.5-Gbps 8-Channel Repeater

Manufacturer: Texas Instruments

General Description

The DS125BR800A is an extremely low-power highperformance multi-protocol repeater/redriver designed to support eight channels of PCIe, SAS, and other high-speed interface serial protocols up to 12.5 Gbps.

The receiver's continuous time linear equalizer (CTLE) provides a boost of up to +30 dB at 6.25 GHz (12.5 Gbps) in each of its eight channels and is capable of opening an input eye that is completely closed due to inter symbol interference (ISI) induced by interconnect medium such as 30in+ backplane traces or 8m+ copper cables, hence enabling host controllers to ensure an error free end-to-end link.

The strong linear equalization maximizes interconnect channel extension when the DS125BR800A is placed with the majority of channel loss on the devices input side.

Overview

DS125BR800A www.ti.com SNLS467 – NOVEMBER 2013 Low-Power 12.

Key Features

  • 1.
  • 2 Proven System Interoperability.
  • Comprehensive multi-protocol Repeater Family.
  • Low 65-mW/Channel (Typ) Power Consumption, With Option to Power Down Unused Channels.
  • Transparent Management of Link Training Protocol for PCIe and SAS.
  • Advanced Signal Conditioning Features.
  • Rx CTLE up to 30 dB (24 dB for SAS3).
  • Tx De-Emphasis up to -12 dB.
  • Tx Output Voltage Control: 700 - 1300 mV.
  • Device Configuration Interface:.