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

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.

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
Applications
  • Redundant Clock / Data distribution
  • SONET/SDH/Fibre Channel/Gigabit Ethernet Clock / Data distribution
End Products
  • Servers and Routers
Simulation Models (1)
Document TitleDocument ID/SizeRevisionRevision Date
IBIS Model NB7L572 for 2.5 V and 3.3 V operationNB7L572.IBS (46.0kB)3
Package Drawings (1)
Document TitleDocument ID/SizeRevision
QFN32, 5x5, 0.5P, 3.1x3.1EP488AM (57.4kB)A
Data Sheets (1)
Document TitleDocument ID/SizeRevisionRevision Date
2.5V / 3.3V Differential 4:1 Mux Input to 1:2 LVPECL Clock/Data Fanout /TranslatorNB7L572/D (134.0kB)2
Order Information
ProductStatusCompliancePackageMSL*ContainerBudgetary Price/Unit
NB7L572MNGActivePb-free Halide freeQFN-32488AM1Tube74Contact BDTIC
NB7L572MNR4GActivePb-free Halide freeQFN-32488AM1Tape and Reel1000Contact BDTIC
Specifications
ProductInput/Output RatioChannelsInput LevelOutput LevelVCC Typ (V)fMax Typ (MHz)tJitter Typ (ps)tskew(OO) Max (ps)tpd Typ (ns)
NB7L572MNG4:21LVDS CML ECLECL2.5 3.380000.5100.175
NB7L572MNR4G4:21LVDS ECL CMLECL2.5 3.380000.5100.175
2.5V / 3.3V Differential 4:1 Mux Input to 1:2 LVPECL Clock/Data Fanout /Translator (134.0kB) NB7L572
IBIS Model NB7L572 for 2.5 V and 3.3 V operation NB7L572
QFN32, 5x5, 0.5P, 3.1x3.1EP NCN6804