Name: Input Mux - 4:1 Differential, 2.5 V / 3.3 V, Clock / Data Fanout Buffer - 1:2 LVPECL
Brand: Input Mux - 4:1 Differential, 2.5 V / 3.3 V, Clock / Data Fanout Buffer - 1:2 LVPECL
SKU: NB7L572

Input Mux - 4:1 Differential, 2.5 V / 3.3 V, Clock / Data Fanout Buffer - 1:2 LVPECL

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Overview

The NB7L572 is a high performance differential 4:1 Clock/Data input multiplexer and a 1:2 LVPECL Clock/Data fanout buffer. The INx/INxb inputs include internal 50-ohm termination resistors and will accept differential LVPECL, CML or LVDS logic levels. The NB7L572 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 operating up to 7GHz or 10Gb/s, respectively. As such, NB7L572 is ideal for SONET, GigE, Fiber Channel, Backplane and other Clock/Data distribution applications. The NB7L572 INx/INxb inputs, outputs and core logic are powered by a 2.5 V +/-5% or 3.3V +/-10% power supply. The two differential LVPECL outputs will swing 750mV when externally terminated with a 50-ohm resistor to VCC - 2V, and are optimized for low skew and minimal jitter. The NB7L572 is offered in a low profile 5mm x5mm 32-pin QFN Pb-free package. Application notes, models, and support documentation are available at www.onsemi.com. The NB7L572 is a member of the GigaComm family of high performance clock products.

Applications

Redundant Clock / Data distribution
SONET/SDH/Fibre Channel/Gigabit Ethernet Clock / Data distribution

End Products

Servers and Routers

Features

Input Data Rate > 11 Gb/s Typical
Data Dependent Jitter < 15 ps
Maximum Input Clock Frequency > 8 GHz Typical
Random Clock Jitter < 0.8 ps RMS
Low Skew 1:2 LVPECL Outputs, < 10 ps max
4:1 MultiLevel Mux Inputs, Accepts LVPECL, CML LVDS
150 ps Typical Propagation Delay
Differential LVPECL Outputs, 750 mV Peak-to-Peak, Typical
Operating Range: VCC = 2.375 V to 3.6 V
Internal 50-ohm Input Termination Resistors
VREFAC Reference Output
40C to +85C Ambient Operating Temperature

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Input/Output Ratio

Channels

Input Level

Output Level

V_CC Typ (V)

f_Max Typ (MHz)

t_Jitter Typ (ps)

t_skew(OO) Max (ps)

t_pd Typ (ns)

Reference Price

NB7L572MNG

Active

QFN-32

488AM

260

TUBE

4:2

ECL

2.5

8000

0.5

0.175

Price N/A

NB7L572MNR4G

Active

QFN-32

488AM

260

REEL

1000

4:2

ECL

2.5

8000

0.5

0.175

Price N/A

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Multiplexers & Crosspoint Switches | NB7L572

Input Mux - 4:1 Differential, 2.5 V / 3.3 V, Clock / Data Fanout Buffer - 1:2 LVPECL

Overview

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