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SY56028XR Fanout Buffer


Micrel's SY56028XR can process clock signals as fast as 4.5GHz


Micrel's SY56028XR is a fully differential, low voltage 1.2V / 1.8V / 2.5V CML 4:1 MUX with input equalization and integrated 1:2 fanout buffer. The SY56028XR can process clock signals as fast as 4.5GHz or data patterns up to 6.4Gbps. The differential input includes Micrel’s unique 3-pin input termination architecture that interfaces to DC-coupled 2.5V / 3.3V LVPECL, 1.2V / 1.8V / 2.5V CML, or LVDS differential signals. For AC-coupled input applications, an internal voltage reference is provided for input bias. Input voltages as small as 200mV (400mV pp) are applied before the 9-, 18- or 27-inch FR4 transmission line.

The SY56028XR operates from a 2.5V ±5% core supply and a 1.2V, 1.8V or 2.5V ±5% output supply and is guaranteed over the full industrial temperature range (-40°C to 85°C). The SY56028XR is part of Micrel’s high-speed Precision Edge® product line.
SY56028XR Fanout Buffers

Features
  • 1.2V / 1.8V / 2.5V CML 4:2 MUX with input equalization
  • Guaranteed AC performance over temperature and voltage:
    • DC-to >6.4Gbps throughput
    • <360ps propagation delay (IN-to-Q)
    • <15ps within-device skew
  • Ultra-low jitter design
    • <0.8ps rms random jitter
    • <10ps pp deterministic jitter
  • Industrial temperature range: -40°C to 85°C

Digi-Key P/N Manufacturer P/N Description  
576-3699-5-ND SY56028XRMG IC MUX CML 4:1 DIFF LV 32MLF High-Capacitance MLCC Datasheet