Product Overview

Product Overview
NB6LQ572: Input Mux - 4:1 Differential, 2.5 V / 3.3 V, with Input Equalizer,
Clock / Data Fanout Buffer - 1:2 LVPECL
For complete documentation, see the data sheet
Product Description
The NB6LQ572 is a high performance differential 4:1 Clock/Data input multiplexer and a 1:2 LVPECL Clock / Data fanout buffer
that operates up to 5 GHz / 6.5Gbps respectively with a 2.5V or 3.3V power supply. Each INx / INxb input pair incorporates a fixed
Equalizer Receiver, which when placed in series with a Clock / Data path, will enhance the degraded signal transmitted across an
FR4 backplane or cable interconnect. For applications that do not require Equalization, consider the NB7L572, which is pincompatible to the NB6LQ572. The differential Clock / Data inputs have internal 50-ohm termination resistors and will accept
differential LVPECL, CML, or LVDS logic levels. The NB6LQ572 incorporates a pair of Select pins that will choose one of four
differential inputs and will produce two identical LVPECL output copies of Clock or Data. As such, the NB6LQ572 is ideal for
SONET, GigE, Fiber Channel, Backplane and other Clock/Data distribution applications. The two differential LVPECL outputs will
swing 750mV when externally loaded and terminated with a 50-ohm resistor to VCC-2V and are optimized for low skew and minimal
jitter. The NB6LQ572 is offered in a low profile 5x5mm 32-pin QFN Pb-free package. Application notes, models, and support
documentation are available at www.onsemi.com. The NB6LQ572 is a member of the ECLinPS MAX family of high performance
clock products.
Features
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Input Data Rate > 6.5Gb/s Typical
Data Dependent Jitter < 10 ps
Maximum Input Clock Frequency > 5 GHz Typical,
Random Clock Jitter < 0.8ps RMS
Fixed Input Equalization
Low Skew 1:2 LVPECL Outputs, < 15 ps max
4:1 Multi-Level Mux Inputs, accepts LVPECL, CML, LVDS
55ps Typical Rise and Fall Times
Differential LVPECL Outputs, 800 mV peak-to-peak, typical
Operating Range: VCC = 2.375 V to 3.6 V
For more features, see the data sheet
Applications
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End Products
Routers, switchers
Servers
Backplanes
DSLAM
• Networking
• Workstations
• ATE
Part Electrical Specifications
Product
Compliance
Status
Input/Out Channel
put Ratio s
Input
Level
Output
Level
VCC Typ
(V)
fMax Typ
(MHz)
tJitter Typ
(ps)
tskew(OO)
Max (ps)
tpd Typ
(ns)
Package
Type
NB6LQ572MNG
Pb-free
Active
4:2
LVDS
ECL
3.3
6000
0.2
15
0.175
QFN-32
6000
0.2
15
0.175
QFN-32
1
Halide free
ECL
2.5
CML
NB6LQ572MNR4G
Pb-free
Halide free
Active
4:2
1
LVDS
ECL
ECL
2.5
3.3
CML
For more information please contact your local sales support at www.onsemi.com
Created on: 6/30/2016