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.
Key Features
- Supports data rates up to 11.3Gb/s
- Low power (135mW per channel)
- Low latency (<500ps)
- Four equalizers in a 4mmx7mm QFN package for straight route-through architecture and simplified routing
- Each equalizer boost is independently pin selectable
- Supports 64b/66b encoded data long run lengths
- Line silence preservation
- 1.2V supply voltage
- Individual lane LOS support Benefits
- Thinner gauge cable
- Extends cable reach greater than 3x
- Improved BER
Applications
- 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
Order Information| Part Number | Package Type | Weight(g) | Pins | MSL Rating | Peak Temp (°C) | RoHS Status |
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| QLX411RIQSR | 46 Ld T+R | 0.07 | 46 | | 260 | RoHS |
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| QLX411RIQT7 | 46 Ld T+R | 0.07 | 46 | | 260 | RoHS |
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