The ISL36411 is a quad receive-side equalizer with extended functionality for advanced protocols operating with line rates up to 11. 1Gbps. It integrates a driver/limiting amplifier with a programmable equalizer to compensate for the frequency dependent attenuation of PCB traces and twin-axial cables. The ISL36411 is capable of extending signal reach up to 10m on 28AWG cable. Supported protocols include 4k/8k video capable DisplayPort v1. 3 (HBR1/2/3), USB 3. 1 Gen 2 at 10Gbps. InfiniBand (QDR), 40G Ethernet (40GBASECR4/SR4), and 10G SFP+ specification (SFF-8431). The small form factor, highly-integrated quad design is ideal for high-density data transmission applications including active copper cable assemblies. The four equalizing filters within the ISL36411 can each be set to provide optimal signal fidelity for a given media and length. The compensation level for the filters is set by two external control pins. Operating on a single 1. 2V power supply, the ISL36411 enables per channel throughputs of up to 11. 1Gbps while passing USB3. x LFPS signals as low as 100kHz. High data rates are achieved by using Current Mode Logic (CML) inputs and outputs and is packaged in a 4mmx7mm 46 Ld QFN. Individual lane LOS support is included for module applications.


  • Supports four channels with data rates up to 11.1Gbps
  • Low power (~110mW per channel)
  • Low latency (<500ps)
  • Four equalizers in 4mmx7mm QFN package for straight route-through architecture and simplified routing
  • Equalizer boost is pin selectable
  • Pin selectable equalizer boosts
  • Supports 64b/66b encoded data - long run lengths
  • Line silence preservation and individual lane LOS support
  • 1.2V power supply
  • LOS support


  • QSFP Active Copper Cable Modules
  • InfiniBand QDR
  • 40G Ethernet (40GBase-CR4/SR4)
  • 100G Ethernet (100GBase-CR10/SR10)
  • High-Speed Active Cable Assemblies
  • High-Speed Printed Circuit Board (PCB) Traces

Product Options

Orderable Part ID Part Status Pkg. Type Carrier Type MOQ Buy Sample
Active QFN Reel 1000
Active QFN Reel 200

Documentation & Downloads

Title Other Languages Type Format File Size Date
Datasheets & Errata
ISL36411 Datasheet Datasheet PDF 631 KB
ISL36411DRZ-EVALZ Design Files Design File ZIP 677 KB
IDT Products for Radio Applications 日本語 Product Brief PDF 2.34 MB

Boards & Kits

Part Number Title Type Company
ISL35411DRZ-EVALZ Quad Lane Extender Evaluation Board Evaluation Renesas
ISL36411DRZ-EVALZ Quad Lane Extender Evaluation Board Evaluation Renesas