描述 Description

The QLx411GRx is a settable quad receive-side equalizer with extended functionality for advanced protocols operating with line rates up to 11.3Gb/s such as InfiniBand (SDR, DDR and QDR) and 40G Ethernet (40GBase-CR4). The QLx411GRx 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 quad design is ideal for high-density data transmission applications including active copper cable assemblies. The four equalizing filters within the QLx411GRx can each be set to provide optimal signal fidelity for a given media and length. The compensation level for each filter is set by two external control pins.
Operating on a single 1.2V power supply, the QLx411GRx enables per channel throughputs of 10Gb/s to 11.3Gb/s while supporting lower data rates including 8.5, 6.25, 5, 4.25, 3.125, and 2.5Gb/s. The QLx411GRx uses current mode logic (CML) inputs/outputs and is packaged in a 4mmx7mm 46 lead QFN. Individual lane LOS support is included for module applications.

特性 Features

? Supports data rates up to 11.3Gb/s
? Low power (135mW per channel)
? Low latency ( Benefits
? Thinner gauge cable
? Extends cable reach greater than 3x
? Improved BER

應用 Application

? QSFP active copper cable modules
? InfiniBand SDR, DDR and QDR
? 40G Ethernet (40GBase-CR4)
? XAUI and RXAUI
? High-speed active cable assemblies
? High-speed printed circuit board (PCB) traces