• Selects between 1 of 8 inputs, and provides two precision, low skew CML output copies
• DC to 5Gbps throughput
• <450ps propagation delay IN-to-Q (VIN = 300mV)
• <70ps tr/ tf time
• <15ps skew (output-to-output)
• Unique, patent-pending, channel-to-channel isolation design provides superior crosstalk performance
• <1psRMS random jitter
• <10psPP deterministic jitter
• <10psPP total jitter (clock)
• <0.7psRMS crosstalk-induced jitter
• Unique, patent-pending, input termination and VT pin accepts DC- and AC-coupled inputs (CML, PECL, LVDS)
• 400mV CML output swing
• 50O source terminated outputs minimize round-trip reflections
• Power supply 2.5V ±5% or 3.3V ±10%
• -40°C to +85°C temperature range
• Available in 44-pin (7mm x 7mm) QFN package

The SY58037U is a low jitter, low skew, high-speed 8:1 multiplexer with a 1:2 differential fanout buffer optimized for precision telecom and enterprise server distribution applications. The SY58037U distributes clock frequencies from DC to 4GHz and data rates to 5Gpbs guaranteed over temperature and voltage.The SY58037U differential input includes Micrel's unique, 3-pin input termination architecture that directly 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. The outputs are 50Ω source-terminated CML with extremely fast rise/fall time guaranteed to be less than 70ps.The SY58037U features a patent-pending isolation design that significantly improves channel-to-channel crosstalk performance.The SY58037U operates from a 2.5V ±5% or 3.3V ±10% supply and is guaranteed over the full industrial temperature range of -40°C to +85°C. The SY58037U is part of Micrel's high-speed, Precision Edge® product line.