1
DATASHEET
Quad Lane Extender
ISL36411
The ISL36411 is a quad receive-side equalizer with extended
functionality for advanced protocols operating with line rates
up to 11.1Gbps. It integrates a driver/limiting amplifier with a
programmable equalizer to compensate for the frequency
dependent attenuation of PCB traces and twin-axial cables.
The ISL36411 is capable of extending signal reach up to 10m
on 28AWG cable. Supported protocols include 4k/8k video
capable DisplayPort v1.3 (HBR1/2/3), USB 3.1 Gen 2 at
10Gbps. InfiniBand (QDR), 40G Ethernet (40GBASECR4/SR4),
and 10G SFP+ specification (SFF-8431).
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 up to 11.1Gbps while
passing USB3.x LFPS signals as low as 100kHz. High data
rates are achieved by using Current Mode Logic (CML) inputs
and outputs and is packaged in a 4mmx7mm 46 Ld QFN.
Individual lane LOS support is included for module
applications.
Related Literature
• AN1573, “ISL36411 Evaluation Board User Guide”
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 and individual lane LOS support
• 1.2V power supply
• LOS support
Applications
• DisplayPort v1.3 active copper cable modules
• QSFP active copper cable modules
•InfiniBand QDR
• 40G ethernet (40GBase-CR4/SR4)
• 100G ethernet (100GBase-CR10/SR10)
• High-speed Printed Circuit Board (PCB) traces
Benefits
•Thinner gauge cable
• Extends cable reach 3x
•Improved BER
FIGURE 1. TYPICAL APPLICATION CIRCUIT
V
DD
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
10nF
100pF
Rx1[P,N]
Rx2[P,N]
Rx3[P,N]
Rx4[P,N]
HOST ASIC
ACTIVE COPPER CABLE ASSEMBLY
8-PAIR DIFFERENTIAL 100˖
7:,1$;,$/&$%/(
ืP$:*
CONNECTOR PADDLE CARD
ISL36411
1.2V
100pF
V
DD
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
10nF
100pF
ISL35411
Tx4[P,N]
Tx3[P,N]
Tx2[P,N]
Tx1[P,N]
HOST ASIC
CONNECTOR PADDLE CARD
0.1˩)
0.1˩)
0.1˩)
0.1˩)
FABRIC SWITCH
HOST CHANNEL
ADAPTER
10nF
100pF
10nF
1.2V
0.1˩)
0.1˩)
0.1˩)
0.1˩)
0.1˩)
0.1˩)
0.1˩)
0.1˩)
DT
June 21, 2016
FN6965.2
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
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