• 1.2V/1.8V/2.5V CML 1:4 Fanout Buffer
• Equalizes 9, 18, 27 inches of FR4
• DC-to >6.4Gbps Data throughput
• DC-to >4.5GHz Clock throughput
• <280 ps propagation delay (IN-to-Q)
• <15ps within-device skew
• <90ps rise/fall times
• <1psRMS random jitter
• High-speed CML outputs
• 2.5V ±5% VCC , 1.2/1.8V/2.5V ±5% VCCO power supply operation
• Industrial temperature range: -40°C to +85°C
• Available in 16-pin (3mm x 3mm) QFN package

The SY56020R is a fully-differential, low-voltage 1.2V/1.8V/2.5V CML 1:4 Fanout Buffer with input equalization. The SY56020R 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 CML differential signals, without any level-shifting or termination resistor networks in the signal path. The differential input can also accept AC-coupled LVPECL and LVDS signals. Input voltages as small as 200mV (400mVpp) are applied before the 9", 18", or 27" FR4 transmission line. For AC-coupled input interface applications, an internal voltage reference is provided to bias the VT pin. The outputs are CML, with extremely fast rise/fall times guaranteed to be less than 90ps.The SY56020R 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 SY56020R is part of Micrel's high-speed, Precision Edge® product line.