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PDF QLX111RIQT7 Data sheet ( Hoja de datos )
| Número de pieza | QLX111RIQT7 | |
| Descripción | 11.1Gb/s Lane Extender | |
| Fabricantes | Intersil Corporation | |
| Logotipo |  |
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11.1Gb/s Lane Extender
QLx111GRx
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.
Typical Application Circuit
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
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
Benefits
• Thinner gauge cable
• Extends cable reach greater than 3x
• Improved BER
October 26, 2009
FN6987.0
www.DataSheet.in
1 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2009. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
1 page  
QLx111GRx
Typical Performance Characteristics
Performance is measured using the test setup illustrated in Figure 1. The signal from the pattern generator is launched
into the twin-ax cable using an SMA adapter card. The chip evaluation board is connected to the output of the cable
through another adapter card. The QLx111GRx output signal is then visualized on a scope to determine signal integrity
parameters such as jitter (Note 7).
Pattern
Generator
SMA
Adapter
Card
100OΩ Twin-Axial
Cable
SMA
Adapter
Card
QLx111G Eval
Board
FIGURE 1. DEVICE CHARACTERIZATION SET UP
Oscilloscope
FIGURE 2. JITTER vs CABLE LENGTH AT 10Gb/s
(BOOST LEVELS 0-3)
FIGURE 3. QLx111GRx 10Gb/s OUTPUT FOR A 10M
28AWG CABLE
NOTE:
7. Prior to the tapeout, the data in Figures 2 and 3 represents simulations approximating the conditions of setup in Figure 1, not
measured data.
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FN6987.0
October 26, 2009
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