qlx411riq Intersil Corporation, qlx411riq Datasheet

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qlx411riq

Manufacturer Part Number
qlx411riq
Description
Quad Lane Extender
Manufacturer
Intersil Corporation
Datasheet
Quad Lane Extender
QLx411GRx
The QLx411GRx is a settable quad receive-side equalizer
with extended functionality for advanced protocols
operating with line rates up to 11.3Gb/s such as
InfiniBand (SDR, DDR and QDR) and 40G Ethernet
(40GBase-CR4). The QLx411GRx 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 QLx411GRx can each be set
to provide optimal signal fidelity for a given media and
length. The compensation level for each filter is set by
two external control pins.
Operating on a single 1.2V power supply, the QLx411GRx
enables per channel throughputs of 10Gb/s to 11.3Gb/s
while supporting lower data rates including 8.5, 6.25, 5,
4.25, 3.125, and 2.5Gb/s. The QLx411GRx 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
November 19, 2009
FN6989.1
Fabric Switch
Rx1[P,N]
Rx2[P,N]
Rx3[P,N]
Rx4[P,N]
Tx1[P,N]
Tx2[P,N]
Tx3[P,N]
Tx4[P,N]
0.1μF
0.1μF
0.1μF
0.1μF
OUT1[P,N]
OUT2[P,N]
OUT3[P,N]
OUT4[P,N]
Connector Paddle Card
QLx411GRx
4
LOS
1
12
CP
IN1[P,N]
IN2[P,N]
IN3[P,N]
IN4[P,N]
EP
1.2V
DT
V
DD
100pF
10nF
0.1μF
0.1μF
0.1μF
0.1μF
1-888-INTERSIL or 1-888-468-3774
1.2V
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
Active Copper Cable Assembly
8-Pair Differential 100Ω
Twin-Axial Cable
≤ 10m 28AWG
Features
• Supports data rates up to 11.3Gb/s
• Low power (135mW per channel)
• Low latency (<500ps)
• Four equalizers in a 4mmx7mm QFN package for
• Each equalizer boost is independently pin selectable
• Supports 64b/66b encoded data – long run lengths
• Line silence preservation
• 1.2V supply voltage
• Individual lane LOS support
Applications
• QSFP active copper cable modules
• InfiniBand SDR, DDR and QDR
• 40G Ethernet (40GBase-CR4)
• XAUI and RXAUI
• High-speed active cable assemblies
• High-speed printed circuit board (PCB) traces
Benefits
• Thinner gauge cable
• Extends cable reach greater than 3x
• Improved BER
straight route-through architecture and simplified
routing
All other trademarks mentioned are the property of their respective owners.
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
1.2V
Copyright Intersil Americas Inc. 2009. 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
QLx411GRx
EP CP LOS
12
OUT1[P,N]
OUT2[P,N]
OUT3[P,N]
OUT4[P,N]
4
0.1μF
0.1μF
0.1μF
0.1μF
Host Channel
Adapter
Rx1[P,N]
Rx2[P,N]
Rx3[P,N]
Rx4[P,N]
Tx1[P,N]
Tx2[P,N]
Tx3[P,N]
Tx4[P,N]

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qlx411riq Summary of contents

Page 1

Quad Lane Extender QLx411GRx The QLx411GRx is a settable quad receive-side equalizer with extended functionality for advanced protocols operating with line rates up to 11.3Gb/s such as InfiniBand (SDR, DDR and QDR) and 40G Ethernet (40GBase-CR4). The QLx411GRx compensates for ...

Page 2

... QLX411RIQT7 QLX411RIQ QLX411RIQSR QLX411RIQ NOTE: These Intersil Pb-free plastic packaged products employ special Pb-free material sets; molding compounds/die attach materials and NiPdAu plate - e4 termination finish, which is RoHS compliant and compatible with both 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 ...

Page 3

Pin Descriptions PIN NAME PIN NUMBER DT 1 Detection Threshold. Reference DC voltage threshold for input signal power detection. Data output OUT[k] is muted when the power of the equalized version of IN[k] falls below the threshold. Tie to ground ...

Page 4

Absolute Maximum Ratings Supply Voltage (V to GND -0.3V to 1.3V DD Voltage at All Input Pins . . . . . . . . . . . ...

Page 5

Electrical Specifications Typical values are PARAMETER SYMBOL Output Residual Jitter Output Transition Time Lane-to-Lane Skew Propagation Delay LOS Assert Time LOS De-Assert Time Data-to-Line Silence Response Time Line Silence-to-Data Response Time NOTES: ...

Page 6

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/CX4 adapter card. The chip evaluation board is connected to the output ...

Page 7

FIGURE 4. FUNCTIONAL DIAGRAM OF A SINGLE CHANNEL WITHIN THE QLx411GRx Operation The QLx411GRx is an advanced quad lane-extender for high-speed interconnects. A functional diagram of one of the four channels in the QLx411GRx is shown in Figure 4. In ...

Page 8

CML Input and Output Buffers The input and output buffers for the high-speed data channels in the QLx411GRx are implemented using CML. Equivalent input and output circuits are shown in Figures 6 and IN[k] P 50Ω 50Ω ...

Page 9

Typical Application Reference Design Figure 8 shows reference design schematics for a QLx411GRx evaluation board with an SMA connector interface. 1.2V Detection threshold reference voltage Loss of signal indicator (Channels 1 and 2) 1.2V Bypass circuit for each V pin: ...

Page 10

... Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use ...

Page 11

Package Outline Drawing L46.4x7 46 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 ...

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