## Time domain filters with transfer functions

Filters can also be implemented in the time domain using
the transferFunction block. For example, consider again the difference
equation:

You can represent it in the form of a transfer function
as:

You can then implement the transfer function in block
diagram form using the transferFunction block. In the Transfer Function
Properties dialog box, activate Discrete and set the value of dT to be greater
than or equal to the simulation time step.