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.

• Input Data Rate > 11 Gb/s Typical
• Data Dependent Jitter
• Maximum Input Clock Frequency > 8 GHz Typical
• Random Clock Jitter
• Low Skew 1:2 LVPECL Outputs,
• 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