1
ISL36411
Quad Lane Extender
ISL36411
The ISL36411 is a settable quad receive-side equalizer
with extended functionality for advanced protocols
operating with line rates up to 11.1Gbps such as
InfiniBand (QDR) and 40G Ethernet (40GBase-CR4/
SR4). The ISL36411 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 ISL36411 can each be set to
provide optimal signal fidelity for a given media and
length. The compensation level for the filters is set by
two external control pins.
Operating on a single 1.2V power supply, the ISL36411
enables per channel throughputs of 10Gbps to 11.1Gbps
while supporting lower data rates including 8.5, 6.25, 5,
4.25, 3.125, and 2.5Gbps. The ISL36411 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.
Features
Supports four channels with data rates up to
11.1Gbps
Low power (~110mW per channel)
Low latency (<500ps)
Four equalizers in 4mmx7mm QFN package for
straight route-through architecture and simplified
routing
Equalizer boost is pin selectable
Pin selectable equalizer boosts
Supports 64b/66b encoded data - long run lengths
Line silence preservation & individual lane LOS
support
1.2V power supply
LOS support
Applications
QSFP Active Copper Cable Modules
InfiniBand QDR
40G Ethernet (40GBase-CR4/SR4)
100G Ethernet (100GBase-CR10/SR10)
High-Speed Active Cable Assemblies
High-Speed Printed Circuit Board (PCB) Traces
Benefits
Thinner gauge cable
Extends cable reach 3x
Improved BER
Typical Application Circuit
VDD
CP LOSB
IN1[P,N]
IN2[P,N]
IN3[P,N]
IN4[P,N]
OUT1[P,N]
OUT2[P,N]
OUT3[P,N]
OUT4[P,N]
DT
1.2V
1
0nF
1
00pF
Rx1[P,N]
Rx2[P,N]
Rx3[P,N]
Rx4[P,N]
H
o
st
ASIC
Active Copper Cable Assembly
8-Pair Differential 100O
Twin-Axial Cable
= 10m 28AWG
Connector Paddle Card
ISL36411
1.2V
100pF
VDD
DE
TDSBL
IN1[P,N]
IN2[P,N]
IN3[P,N]
IN4[P,N]
OUT1[P,N]
OUT2[P,N]
OUT3[P,N]
OUT4[P,N]
1.2V
10
nF
1
00p
F
ISL35411
Tx4[P,N]
Tx3[P,N]
Tx2[P,N]
Tx1[P,N]
H
o
s
tA
S
IC
Connector Paddle Card
0.1F
Fabric Switch
Host Channel
Adapter
10nF
100pF
10nF
1.2V
0.1F
DT
Ω
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. 2010. All Rights Reserved.
All other trademarks mentioned are the property of their respective owners.
March 25, 2010
FN6965.1