Status: In Production
The SY89854U is a 2.5V/3.3V precision, high-speed, fully differential 1:4 LVPECL fanout buffer. Optimized to provide four identical output copies with less than 20ps of skew and less than 10pspp total jitter, the SY89854U can process clock signals as fast as 2GHz.The differential input includes Micrel's unique, patent pending 3-pin input termination architecture that interfaces to any differential signal (AC or DC-coupled) as small as 100mV (200mVpp) without any level shifting or termination resistor networks in the signal path. For AC-coupled input interface applications, an on-board output reference voltage (VREF-AC) is provided to bias the center-tap (VT) pin. The outputs are 800mV LVPECL, with fast rise/fall times guaranteed to be less than 180ps.The SY89854U operates from a 2.5V ±5% supply or a 3.3V ±10% supply and is guaranteed over the full industrial temperature range of -40°C to +85°C. The SY89854U is part of Micrel's high-speed, Precision Edge® product line.
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