10:4 Gearbox 100G Ethernet/OTN PHY IC

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The Vortex Gearbox™ AVSP-1104 is a single-chip 100Gbps gearbox PHY IC designed for high-density 100G Ethernet and Optical Transport Networking (OTN) applications. The device supports full-duplex multiplexing of ten 10/11Gbps channels and de-multiplexing of four 25/28Gbps channels. The device features Avago’s proven 28nm CMOS SerDes technology that has demonstrated compliance with IEEE CAUI and various Common Electrical Interface (CEI) standards that include CEI-11G-SR, CEI-25G-LR, and CEI-28G-VSR. The device also incorporates Avago’s unique proprietary Decision Feedback Equalization (DFE) architecture providing low overall power consumption, low data latency and best-in-class jitter and crosstalk performance.

The Vortex Gearbox™ AVSP-1104 is ideal for driving both backplane and portside for data center, enterprise and OTN switch and router applications. The communication link can withstand up to 32dB of channel loss, thereby enabling customers to use and drive highly lossy backplanes, cables and connectors. In addition, the device can be configured as a 10:10 retimer supporting full-duplex transmission of ten 10/11Gbps channels for long reach applications.


  • Long reach performance withstanding up to 32dB of channel loss
  • Hole-free operation from 1-28 Gbps
  • Gearbox functionality for full-duplex conversion of four lanes (4x25 Gbps, 4x28 Gbps) to ten lanes (10x10 Gbps, 10x11 Gbps) 
  • Compliant with IEEE CAUI, CEI-11G-SR, CEI-25G-LR, and CEI-28G-VSR
  • Option for configuration as a retimer function for full-duplex transmission of ten lanes
  • Programmable Tx/Rx equalization of all SerDes interfaces
  • Bit Error Rate (BER) of 1e-20
  • Easy-to-use diagnostic software for remote debugging
  • 320-pin fcBGA package


  • Data Center Switching
  • Enterprise Switching
  • Optical Transport Networking (OTN)
  • Blade Servers
  • Routers

Lifecycle Status

Limited Release

Lifecycle Status

Limited Release

Specification Value
Lifecycle Limited Release
Samples Available No
Distrib. Inventory No
Function Retimer or Gearbox
Retimer Channel Count 10
Bidirectional Yes
Retimer Per Channel Data Rates (Gbps) 1-16
10:4 Gearbox Data Rates (Gbps) 10x10 to 4x25, 10x11.2 to 4x28
Compliance IEEE CAUI-10, CEI-28G VSR, CEI-25G LR, IEEE CAUI-4


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