ISL36411 Intersil, ISL36411 Datasheet

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ISL36411

Manufacturer Part Number
ISL36411
Description
Quad Lane Extender
Manufacturer
Intersil
Datasheet

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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.
Typical Application Circuit
March 25, 2010
FN6965.1
Fabric Switch
Tx1[P,N]
Tx2[P,N]
Tx3[P,N]
Tx4[P,N]
0.1µF
0.1µF
0.1µF
0.1µF
Connector Paddle Card
IN1[P,N]
IN4[P,N]
TDSBL
IN2[P,N]
IN3[P,N]
1
ISL35411
OUT1[P,N]
OUT2[P,N]
OUT3[P,N]
OUT4[P,N]
DE
1.2V
DT
V
DD
1-888-INTERSIL or 1-888-468-3774
100pF
10nF
1.2V
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
Active Copper Cable Assembly
8-Pair Differential 100O
Twin-Axial Cable
= 10m 28AWG
Features
• Supports four channels with data rates up to
• Low power (~110mW per channel)
• Low latency (<500ps)
• Four equalizers in 4mmx7mm QFN package for
• Equalizer boost is pin selectable
• Pin selectable equalizer boosts
• Supports 64b/66b encoded data - long run lengths
• Line silence preservation & individual lane LOS
• 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
11.1Gbps
straight route-through architecture and simplified
routing
support
All other trademarks mentioned are the property of their respective owners.
Ω
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
1.2V
Copyright Intersil Americas Inc. 2010. All Rights Reserved.
0.1µF
0.1µF
0.1µF
0.1µF
100pF
10nF
1.2V
V
IN1[P,N]
IN2[P,N]
IN3[P,N]
IN4[P,N]
DT
DD
Connector Paddle Card
ISL36411
CP LOSB
OUT1[P,N]
OUT2[P,N]
OUT3[P,N]
OUT4[P,N]
0.1µF
0.1µF
0.1µF
0.1µF
www.DataSheet4U.com
Host Channel
Adapter
Rx1[P,N]
Rx2[P,N]
Rx3[P,N]
Rx4[P,N]

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ISL36411 Summary of contents

Page 1

... 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 ...

Page 2

... SnPb and Pb-free soldering operations). Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020. 3. For Moisture Sensitivity Level (MSL), please see device information page for ISL36411. For more information on MSL please see techbrief TB363. ...

Page 3

... Tie to ground to disable electrical idle preservation and always enable the limiting amplifier. Exposed Pad - Exposed ground pad. For proper electrical and thermal performance, this pad should be connected to the PCB ground plane. 3 ISL36411 DESCRIPTION www.DataSheet4U.com FN6965.1 March 25, 2010 ...

Page 4

... Diff. Conversion) Output Amplitude Range V OUT Differential Output Impedance 4 ISL36411 Thermal Information Thermal Resistance (Typical QFN Package (Notes Operating Ambient Temperature Range 0°C to +85°C Storage Ambient Temperature Range . . . . . -55°C to +150°C Maximum Junction Temperature +125°C Pb-Free Reflow Profile see link below http://www ...

Page 5

... Data-to-Line Silence Response Time NOTES: 6. After channel loss, differential amplitudes at ISL36411 inputs must meet the input voltage range specified in “Absolute Maximum Ratings” on page 4. 7. Maximum Reflection Coefficient given by equation SDDXX(dB)= -12 + 2*√(f), with f in GHz. Established by characterization and not production tested. ...

Page 6

... 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 ISL36411 output signal is then visualized on a scope to determine signal integrity parameters such as jitter. ...

Page 7

... Operation The ISL36411 is an advanced quad lane-extender for high-speed interconnects. A functional diagram of one of the four channels in the ISL36411 is shown in Figure 3. In addition to a robust equalization filter to compensate for channel loss and restore signal fidelity, the ISL36411 contains unique integrated features to preserve special signaling protocols typically broken by other equalizers ...

Page 8

... Other values of the resistor may also be applicable; therefore DT settings should be verified on an application-specific basis. PCB Layout Considerations Because of the high speed of the ISL36411 signals, careful PCB layout is critical to maximize performance. The following guidelines should be adhered to as closely as possible: • All high speed differential pair traces should have a characteristic impedance of 50Ω ...

Page 9

... Application Information Typical application schematic for ISL36411 is shown in Figure 6. 1.2V Bypass circuit for each V pin DD (*100pF capacitor should be positioned closest to the pin) NOTES: 15. See “Control Pin Boost Setting” on page 7 for information on how to connect the CP pins. 16. See “Detection Thereshold (DT) Pin Functionality” on page 8 for details on DT pin operation. ...

Page 10

... Intersil Lane Extenders allow greater reach over existing cabling while reducing the need for thicker cables. This significantly reduces cable weight and clutter, increases airflow, and improves power consumption. 10 ISL36411 www.DataSheet4U.com FN6965.1 March 25, 2010 ...

Page 11

... No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries. For information regarding Intersil Corporation and its products, see 11 ISL36411 VOL : delete typical “0” for a complete list of Intersil product families. ISL36411 www.intersil.com/askourstaff http://rel.intersil.com/reports/search.php www.intersil.com/product_tree www.intersil.com/design/quality www.DataSheet4U.com CHANGE www ...

Page 12

... LEAD THIN QUAD FLAT NO-LEAD PLASTIC PACKAGE (TQFN) Rev 0, 9/09 4.00 6 PIN 1 INDEX AREA (4X) 0.05 TOP VIEW 0.70 ±0.05 SIDE VIEW ( 3. 2.50 5.50 ) TYPICAL RECOMMENDED LAND PATTERN 12 ISL36411 A B SIDE VIEW SEE DETAIL "X" 0. SEATING PLANE 0.05 C NOTES: 1. Dimensions are in millimeters. Dimensions Dimensioning and tolerancing conform to AMSE Y14.5m-1994. ...

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