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Texas Instruments DS250DF410 Multi-Rate 4-Channel Retimer

Texas Instruments DS250DF410 Multi-Rate 4-Channel Retimer is a four-channel multi-rate retimer with integrated signal conditioning. It is used to extend the reach and robustness of long, lossy, crosstalk-impaired high-speed serial links while achieving a bit error rate (BER) of 10-15 or less. Each channel of the DS250DF410 independently locks to serial data rates in a continuous range from 20.6Gbps to 25.8Gbps. This device also supports sub-rates (÷2 and ÷4), including crucial data rates such as 10.3125Gbps and 12.5Gbps. This feature allows the Texas Instruments DS250DF410 to support individual lane Forward Error Correction (FEC) pass-through.

Features

  • Quad-channel multi-rate retimer with integrated signal conditioning
  • All channels lock independently from 20.6 to 25.8Gbps (including sub-rates such as 10.3125Gbps, 12.5Gbps, and more)
  • Ultra-low latency
    • < 500ps typical for 25.78125Gbps data rate
  • Single power supply, no low-jitter reference
  • Clock required, and minimal supply decoupling to reduce board routing complexity and BOM cost
  • Integrated 2×2 cross point
  • Adaptive Continuous Time Linear Equalizer (CTLE)
  • Adaptive Decision Feedback Equalizer (DFE)
  • Low-jitter transmitter with 3-tap FIR filter
  • Combined equalization supporting +35dB channel loss at 12.9GHz
  • 205mVppd to 1225mVppd (typical) adjustable transmit amplitude 
  • On-chip Eye Opening Monitor (EOM), PRBS pattern checker/generator
  • Supports JTAG/AC-JTAG boundary scan
  • Small 6mm × 6mm BGA package with easy flow-through routing

Applications

  • Jitter cleaning for front-port optical
  • Active cable assemblies
  • Backplane/mid-plane reach extension
  • IEEE802.3bj 100GbE, Infiniband EDR, and OIFCEI-25G-LR/MR/SR/VSR electrical interfaces
  • SFP28, QSFP28, CFP2/CFP4, CDFP

Simplified Schematic

Schematic - Texas Instruments DS250DF410 Multi-Rate 4-Channel Retimer

Related Development Tool

Texas Instruments DS250DF410EVM Retimer Evaluation Module (EVM)

Allows for easy evaluation of the 25Gbps multi-rate 43-channel retimer, DS250DF410.

Learn Moreà propos de Texas Instruments DS250DF410EVM Retimer Evaluation Module (EVM) View Productslié à Texas Instruments DS250DF410EVM Retimer Evaluation Module (EVM)
Publié le: 2016-05-03 | Mis à jour le: 2022-03-11