ISL35111 Datasheet, PDF (1/8 Pages) Intersil Corporation – 11.1Gb/s Driver

11.1Gb/s Driver
ISL35111
The ISL35111 is a de-emphasis driver with extended
functionality for advanced protocols operating with line
rates up to 11.1Gbps such as 10G Ethernet. The
ISL35111 is a high-speed driver/limiting amplifier with
built-in de-emphasis to drive twin-axial copper cables
and compensate for the frequency dependent
attenuation of PCB traces such as the SFI channel in the
10G SFP+ specification (SFF-8431).
Used in conjunction with Intersil’s ISL36111 receive-side
equalizer, ISL35111 enables active copper cable
assemblies that support 10G serial data transmission
over >15m of twin-axial copper cables.
Operating on a single 1.2V power supply, the ISL35111
enables channel throughputs of 10Gbps to 11.1Gbps
while supporting lower data rates including 8.5, 6.25, 5,
4.25, 3.125, and 2.5Gb/s. The QL111VTx uses current
mode logic (CML) input/output and is packaged in a
3mmx3mm 16 lead QFN.
Typical Application Diagram
1.2V
Features
• Supports data rates up to 11.1Gbps
• Low power (85mW typical)
• Low latency (<500ps)
• Adjustable output de-emphasis
• Single channel driver in a 3mmx3mm QFN package
for straight route-through architecture and simplified
routing
• Supports 64b/66b encoded data – long run lengths
• Line silence preservation
• 1.2V supply voltage
• TX_Disable and TX_LOS
Applications
• Active copper cable modules (SFP+, QSFP, CXP, etc)
• Optical transceiver modules (SFP+, QSFP, CXP, etc)
• 10G Ethernet
• 40G/100G Ethernet
• 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
1.2V
0.1mF
0.1mF
LOS _{CP-A CP-B} Vdd
OUT [P]
IN [P]
IQSLLx316111V1R1x
OUT [N]
IN [N]
0.1mF
0.1mF
GND DT
LOS
Vdd
0.1mF
DE-A DE-B
IN [P]
OUT [P]
0.1mF ^{IQSLLx315111V1T1x}
IN [N]
OUT [N]
TDSBL GND DT
November 19, 2009
FN6975.0
FIGURE 1. TYPICAL CABLE APPLICATION DIAGRAM
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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