• Precision 1:2, 800mV LVPECL fanout buffer
• Guaranteed AC performance over temperature and voltage:
• DC-to >3.2Gbps throughput
• <350ps propagation delay (IN-to-Q)
• <20ps within-device skew
• <110ps rise/fall times
• Fail Safe Input prevents outputs from oscillating when input is invalid
• Ultra-low jitter design
• 85fsRMS phase jitter
• High-speed LVPECL outputs
• 2.5V ±5% or 3.3V ±10% power supply operation
• Industrial temperature range: –40°C to +85°C
• Available in 16-pin (3mm x 3mm) QFN package

The SY58607U is a 2.5/3.3V, high-speed, fully differential 1:2 LVPECL fanout buffer optimized to provide two identical output copies with less than 20ps of skew and less than 10pspp total jitter. The SY58607U can process clock signals as fast as 2.5GHz or data patterns up to 3.2Gbps.The differential input includes Micrel’s unique, 3-pin input termination architecture that interfaces to LVPECL, LVDS or CML differential signals, (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 integrated voltage reference (VREF-AC) is provided to bias the VT pin. The outputs are 800mV LVPECL, with extremely fast rise/fall times guaranteed to be less than 110ps.The SY58607U operates from a 2.5V ±5% supply or 3.3V ±10% supply and is guaranteed over the full industrial temperature range (–40°C to +85°C). For applications that require CML or LVDS outputs, consider the SY58606U and SY58608U, 1:2 fanout buffers with 400mV and 325mV output swings respectively. The SY58607U is part of Micrel’s high-speed, Precision Edge® product line.