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
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Applications- Redundant Clock / Data distribution
- SONET/SDH/Fibre Channel/Gigabit Ethernet Clock / Data distribution
| End Products |
Simulation Models (1)
Package Drawings (1)
Data Sheets (1)
Order Information
| Product | Status | Compliance | Package | MSL* | Container | Budgetary Price/Unit |
|---|
| NB7L572MNG | Active | Pb-free
Halide free | QFN-32 | 488AM | 1 | Tube | 74 | Contact BDTIC |
| NB7L572MNR4G | Active | Pb-free
Halide free | QFN-32 | 488AM | 1 | Tape and Reel | 1000 | Contact BDTIC |
Specifications
| Product | Input/Output Ratio | Channels | Input Level | Output Level | VCC Typ (V) | fMax Typ (MHz) | tJitter Typ (ps) | tskew(OO) Max (ps) | tpd Typ (ns) |
|---|
| NB7L572MNG | 4:2 | 1 | LVDS
CML
ECL | ECL | 2.5
3.3 | 8000 | 0.5 | 10 | 0.175 |
| NB7L572MNR4G | 4:2 | 1 | LVDS
ECL
CML | ECL | 2.5
3.3 | 8000 | 0.5 | 10 | 0.175 |
