The SY100EP15V is a high-speed, low-skew, PECL/ECL 1:4 precision fanout buffer with a 2:1 mux front end in a small 16-pin TSSOP package. The 2:1 mux input accepts a single-ended PECL/ECL source (CLK1) and a differential PECL/ECL/HSTL source (CLK0). All I/O pins are 100K EP PECL/ECL logic compatible. AC performance is guaranteed over the industrial –40°C to +85°C temperature range and 3.3V to 5V supply voltage. This device will operate in PECL/LVPECL or ECL/LVECL mode. For clock applications, the high-speed design combined with an extremely fast rise/fall time of less than 225ps produces a toggle frequency as high as 2.5GHz (~400mVPP swing).A VBB output reference pin is available for AC–coupled and single-ended input applications. In addition, a synchronous output enable function is provided.The SY100EP15V is part of Micrel’s high-speed, precision edge timing and distribution family. For applications that require a different I/O combination, consult Micrel's website and choose from a comprehensive product line of high-speed, low-skew fanout buffers, translators, and clock dividers.