The Sinc component has a real output that is a sinc:

$y\&equals;y_0\&plus;\{\begin{array}{cc}0& t<T_0\\ A& t<T_0\&plus;\epsilon \\ A\frac{\sin \left(2\pi f\left(t-T_0\right)\right)}{2\pi f\left(t-T_0\right)}& \mathrm{otherwise}\end{array}$

The component described in this topic is from the Modelica Standard Library. To view the original documentation, which includes author and copyright information, click here.