The ISL35411 is a quad de-emphasis driver with extended functionality for advanced protocols operating with line rates up to 11. 1Gbps. It integrates a high-speed driver/limiting amplifier with built-in de-emphasis to compensate for the frequency dependent attenuation of PCB traces and twin-axial copper cables. Supported protocols include 4k/8k video capable DisplayPort v1. 3 (HBR1/2/3), InfiniBand (QDR), 40G Ethernet (40GBASECR4/SR4) and 10G SFP+ specification (SFF-8431). Used in conjunction with Intersil's ISL36411 receive-side equalizer, the ISL35411 enables active copper cable assemblies that support 10G serial data transmission over >15m of twin-axial copper cables. Operating on a single 1. 2V power supply, the ISL35411 enables per channel throughputs of 10Gbps to 11. 1Gbps. High data rates are achieved by using Current Mode Logic (CML) inputs and outputs and is packaged in a 4mmx7mm 46 Ld QFN.


  • Supports four channels with data rates up to 11.1Gbps
  • Low power (90mW per channel)
  • Low latency
  • Adjustable output de-emphasis
  • Four drivers in a 4mmx7mm QFN package for straight route through architecture and simplified routing
  • Supports 64b/66b encoded data - long run lengths
  • Line silence preservation
  • 1.2V supply voltage
  • TX_Disable


  • 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
ISL35411 Datasheet Datasheet PDF 836 KB
User Guides & Manuals
ISL35411DRZ-EVALZ User Guide Manual PDF 839 KB
ISL35411DRZ-EVALZ Design Files Design File ZIP 682 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