QLX111GRX
11.1Gb/s Lane Extender

Key Features

• Supports data rates up to 11.1Gb/s
• Low power (<135mW)
• Low latency (<500ps)
• Single channel equalizer in a 3mmx3mm QFN package for straight route-through architecture and simplified routing
• Adjustable equalizer boost
• Supports 64b/66b encoded data long run lengths
• Line silence preservation
• 1.2V supply voltage
• LOS support
  
  Benefits
• Thinner gauge cable
• Extends cable reach greater than 3x
• Improved BER

Description

The QLx111GRx is a settable single-channel receive-side equalizer with extended functionality for advanced protocols operating with line rates up to 11.1Gb/s such as 10G Ethernet (10GBase-CR). The QLx111GRx compensates for the frequency dependent attenuation of copper twin-axial cables, extending the signal reach up to at least 10m on 28AWG cable.

The small form factor, highly-integrated design is ideal for high-density data transmission applications including active copper cable assemblies. The equalizing filter within the QLx111GRx can be set to provide optimal signal fidelity for a given media and length. The compensation level for the filter is set by two external control pins.

Operating on a single 1.2V power supply, the QLx111GRx enables per channel throughputs of 10Gb/s to 11.1Gb/s while supporting lower data rates including 8.5, 6.25, 5, 4.25, 3.125, and 2.5Gb/s. The QLx111GRx uses current mode logic (CML) input/output and is packaged in a 3mmx3mm 16 lead QFN. LOS support is included for module applications.

Applications

• SFP+ active copper cable modules
• QSFP active copper cable modules
• 10G Ethernet (10GBase-CR)
• XFI
• 40G Ethernet (40GBase-CR4)
• Fibre Channel
• High-speed active cable assemblies
• High-speed printed circuit board (PCB) traces